diff options
| author | rpj <rpj> | 2003-08-14 08:53:17 +0000 |
|---|---|---|
| committer | rpj <rpj> | 2003-08-14 08:53:17 +0000 |
| commit | a50745ec922a917513029f3f87bf820827b43f29 (patch) | |
| tree | 1e221862e0550d163baef12d17634430ae677824 | |
| parent | 414f4bd7e70d94025576d9264c86da63c506f6ca (diff) | |
Reuse of thread IDs, improved thread ID validation, new tests, bug fixes.
| -rw-r--r-- | ANNOUNCE | 3 | ||||
| -rw-r--r-- | ChangeLog | 8009 | ||||
| -rw-r--r-- | GNUmakefile | 4 | ||||
| -rw-r--r-- | Makefile | 4 | ||||
| -rw-r--r-- | Nmakefile.tests | 12 | ||||
| -rw-r--r-- | README | 13 | ||||
| -rw-r--r-- | global.c | 6 | ||||
| -rw-r--r-- | implement.h | 16 | ||||
| -rw-r--r-- | misc.c | 2 | ||||
| -rw-r--r-- | pthread.h | 6 | ||||
| -rw-r--r-- | pthread_cancel.c | 7 | ||||
| -rw-r--r-- | pthread_detach.c | 20 | ||||
| -rw-r--r-- | pthread_equal.c | 4 | ||||
| -rw-r--r-- | pthread_getschedparam.c | 6 | ||||
| -rw-r--r-- | pthread_join.c | 21 | ||||
| -rw-r--r-- | pthread_kill.c | 99 | ||||
| -rw-r--r-- | pthread_setschedparam.c | 6 | ||||
| -rw-r--r-- | ptw32_new.c | 15 | ||||
| -rw-r--r-- | ptw32_processInitialize.c | 1 | ||||
| -rw-r--r-- | ptw32_processTerminate.c | 16 | ||||
| -rw-r--r-- | ptw32_reuse.c | 94 | ||||
| -rw-r--r-- | ptw32_threadDestroy.c | 33 | ||||
| -rw-r--r-- | signal.c | 5 | ||||
| -rw-r--r-- | tests/ChangeLog | 33 | ||||
| -rw-r--r-- | tests/GNUmakefile | 10 | ||||
| -rw-r--r-- | tests/Makefile | 9 | ||||
| -rw-r--r-- | tests/create2.c | 6 | ||||
| -rw-r--r-- | tests/exception2.c | 2 | ||||
| -rw-r--r-- | tests/kill1.c | 87 | ||||
| -rw-r--r-- | tests/reuse1.c | 119 | ||||
| -rw-r--r-- | tests/reuse2.c | 162 | ||||
| -rw-r--r-- | tests/valid1.c | 104 | ||||
| -rw-r--r-- | tests/valid2.c | 91 |
33 files changed, 4979 insertions, 4046 deletions
@@ -232,6 +232,8 @@ The following functions are implemented: Signals
---------------------------
pthread_sigmask
+ pthread_kill (only supports zero sig value,
+ for thread validity checking)
---------------------------
Non-portable routines (see the README.NONPORTABLE file for usage)
@@ -311,7 +313,6 @@ The following functions are not implemented: ---------------------------
Signals
---------------------------
- pthread_kill
sigtimedwait
sigwait
sigwaitinfo
@@ -1,3985 +1,4024 @@ -2003-08-12 Ross Johnson <rpj@ise.canberra.edu.au> - - * pthread_getschedparam.c (pthread_getschedparam): An invalid thread ID - parameter was returning an incorrect error value. - * pthread_setschedparam.c (pthread_setschedparam): Likewise. - -2003-07-19 Ross Johnson <rpj@ise.canberra.edu.au> - - * GNUmakefile: modified to work under MsysDTK environment. - * pthread_spin_lock.c (pthread_spin_lock): Check for NULL arg. - * pthread_spin_unlock.c (pthread_spin_unlock): Likewise. - * pthread_spin_trylock.c (pthread_spin_trylock): Likewise; - fix incorrect pointer value if lock is dynamically initialised by - this function. - * sem_init.c (sem_init): Initialise sem_t value to quell compiler warning. - * sem_destroy.c (sem_destroy): Likewise. - * ptw32_threadStart.c (non-MSVC code sections): Include <exception> rather - than old-style <new.h>; fix all std:: namespace entities such as - std::terminate_handler instances and associated methods. - * ptw32_callUserDestroyRoutines.c (non-MSVC code sections): Likewise. - -2003-06-24 Piet van Bruggen <pietvb@newbridges.nl> - - * pthread_spin_destroy.c (pthread_spin_destroy): Was not freeing the - spinlock struct. - -2003-06-22 Nicolas Barry <boozai@yahoo.com> - - * pthread_mutex_destroy.c (pthread_mutex_destroy): When called - with a recursive mutex that was locked by the current thread, the - function was failing with a success return code. - -2003-05-15 Steven Reddie <Steven.Reddie@ca.com> - - * pthread_win32_attach_detach_np.c (pthread_win32_process_detach_np): - NULLify ptw32_selfThreadKey after the thread is destroyed, otherwise - destructors calling pthreads routines might resurrect it again, creating - memory leaks. Call the underlying Win32 Tls routine directly rather than - pthread_setspecific(). - (pthread_win32_thread_detach_np): Likewise. - -2003-05-14 Viv <vcotirlea@hotmail.com> - - * pthread.dsp: Change /MT compile flag to /MD. - -2003-03-04 Alexander Terekhov <TEREKHOV@de.ibm.com> - - * pthread_mutex_timedlock.c (pthread_mutex_timedlock): Fix failure to - set ownership of mutex on second grab after abstime timeout. - - bug reported by Robert Strycek <strycek@posam.sk> - -2002-12-17 Thomas Pfaff <tpfaff@gmx.net> - - * pthread_mutex_lock.c (ptw32_semwait): New static routine to provide - a non-cancelable sem_wait() function. This is consistent with the - way that pthread_mutex_timedlock.c does it. - (pthread_mutex_lock): Use ptw32_semwait() instead of sem_wait(). - -2002-12-11 Thomas Pfaff <tpfaff@gmx.net> - - * pthread_mutex_trylock.c: Should return EBUSY rather than EDEADLK. - * pthread_mutex_destroy.c: Remove redundant ownership test (the - trylock call does this for us); do not destroy a recursively locked - mutex. - -2002-09-20 Michael Johnson <michaelj@maine.rr.com> - - * pthread_cond_destroy.c (pthread_cond_destroy): - When two different threads exist, and one is attempting to - destroy a condition variable while the other is attempting to - initialize a condition variable that was created with - PTHREAD_COND_INITIALIZER, a deadlock can occur. Shrink - the ptw32_cond_list_lock critical section to fix it. - -2002-07-31 Ross Johnson <rpj@special.ise.canberra.edu.au> - - * ptw32_threadStart.c (ptw32_threadStart): Thread cancelLock - destruction moved to ptw32_threadDestroy(). - - * ptw32_threadDestroy.c (ptw32_threadDestroy): Destroy - the thread's cancelLock. Moved here from ptw32_threadStart.c - to cleanup implicit threads as well. - -2002-07-30 Alexander Terekhov <TEREKHOV@de.ibm.com> - - * pthread_cond_wait.c (ptw32_cond_wait_cleanup): - Remove code designed to avoid/prevent spurious wakeup - problems. It is believed that the sem_timedwait() call - is consuming a CV signal that it shouldn't and this is - breaking the avoidance logic. - -2002-07-30 Ross Johnson <rpj@ise.canberra.edu.au> - - * sem_timedwait.c (sem_timedwait): Tighten checks for - unreasonable abstime values - that would result in - unexpected timeout values. - - * w32_CancelableWait.c (ptw32_cancelable_wait): - Tighten up return value checking and add comments. - - -2002-06-08 Ross Johnson <rpj@special.ise.canberra.edu.au> - - * sem_getvalue.c (sem_getvalue): Now returns a value for the - NEED_SEM version (i.e. earlier versions of WinCE). - - -2002-06-04 Rob Fanner <rfanner@stonethree.com> - - * sem_getvalue.c (sem_getvalue): The Johnson M. Hart - approach didn't work - we are forced to take an - intrusive approach. We try to decrement the sema - and then immediately release it again to get the - value. There is a small probability that this may - block other threads, but only momentarily. - -2002-06-03 Ross Johnson <rpj@ise.canberra.edu.au> - - * sem_init.c (sem_init): Initialise Win32 semaphores - to _POSIX_SEM_VALUE_MAX (which this implementation - defines in pthread.h) so that sem_getvalue() can use - the trick described in the comments in sem_getvalue(). - * pthread.h (_POSIX_SEM_VALUE_MAX): Defined. - (_POSIX_SEM_NSEMS_MAX): Defined - not used but may be - useful for source code portability. - -2002-06-03 Rob Fanner <rfanner@stonethree.com> - - * sem_getvalue.c (sem_getvalue): Did not work on NT. - Use approach suggested by Johnson M. Hart in his book - "Win32 System Programming". - -2002-02-28 Ross Johnson <rpj@setup1.ise.canberra.edu.au> - - * errno.c: Compiler directive was incorrectly including code. - * pthread.h: Conditionally added some #defines from config.h - needed when not building the library. e.g. NEED_ERRNO, NEED_SEM. - (PTW32_DLLPORT): Now only defined if _DLL defined. - (_errno): Compiler directive was incorrectly including prototype. - * sched.h: Conditionally added some #defines from config.h - needed when not building the library. - * semaphore.h: Replace an instance of NEED_SEM that should - have been NEED_ERRNO. This change currently has nil effect. - - * GNUmakefile: Correct some recent changes. - - * Makefile: Add rule to generate pre-processor output. - -2002-02-23 Ross Johnson <rpj@setup1.ise.canberra.edu.au> - - * pthread_rwlock_timedrdlock.c: New - untested. - * pthread_rwlock_timedwrlock.c: New - untested. - - * Testsuite passed (except known MSVC++ problems) - - * pthread_cond_destroy.c: Expand the time change - critical section to solve deadlock problem. - - * pthread.c: Add all remaining C modules. - * pthread.h: Use dllexport/dllimport attributes on functions - to avoid using pthread.def. - * sched.h: Likewise. - * semaphore.h: Likewise. - * GNUmakefile: Add new targets for single translation - unit build to maximise inlining potential; generate - pthread.def automatically. - * Makefile: Likewise, but no longer uses pthread.def. - -2002-02-20 Ross Johnson <rpj@setup1.ise.canberra.edu.au> - - * pthread_cond_destroy.c (pthread_cond_destroy): - Enter the time change critical section earlier. - -2002-02-17 Ross Johnson <rpj@setup1.ise.canberra.edu.au - - * Testsuite passed. - - * pthread_timechange_handler_np.c: New; following - a suggestion from Alexander Terekhov that CVs should - be broadcast so that they all re-evaluate their - condition variables and reset a new timeout if - required, whenever an application receives a - WM_TIMECHANGE message. This message indicates that - the system time has been changed. Therefore, CVs - waiting for a timeout set as an abs_time will possibly - not wake up at the expected time. Some applications - may not be tolerant of this. - * pthread_cond_init.c: Add CV to linked list. - * pthread_cond_destroy.c: Remove CV from linked list. - * global.c (ptw32_cond_list_head): New variable. - (ptw32_cond_list_tail): New variable. - (ptw32_cond_list_cs): New critical section. - * ptw32_processInitialize (ptw32_cond_list_cs): Initialize. - * ptw32_processTerminate (ptw32_cond_list_cs): Delete. - - - * Reduce executable size. - ----------------------- - When linking with the static library, only those - routines actually called, either directly or indirectly - should be included. - - [Gcc has the -ffunction-segments option to do this but MSVC - doesn't have this feature as far as I can determine. Other - compilers are undetermined as well. - rpj] - - * spin.c: Split file into function segments. - * ptw32_spinlock_check_need_init.c: Separated routine from spin.c. - * pthread_spin_init.c: Likewise. - * pthread_spin_destroy.c: Likewise. - * pthread_spin_lock.c: Likewise. - * pthread_spin_unlock.c: Likewise. - * pthread_spin_trylock.c: Likewise. - - * sync.c: Split file into function segments. - * pthread_detach.c: Separated routine from sync.c. - * pthread_join.c: Likewise. - - * tsd.c: Split file into function segments. - * pthread_key_create.c: Separated routine from tsd.c. - * pthread_key_delete.c: Likewise. - * pthread_setspecific.c: Likewise. - * pthread_getspecific.c: Likewise. - - * sched.c: Split file into function segments. - * pthread_attr_setschedpolicy.c: Separated routine from sched.c. - * pthread_attr_getschedpolicy.c: Likewise. - * pthread_attr_setschedparam.c: Likewise. - * pthread_attr_getschedparam.c: Likewise. - * pthread_attr_setinheritsched.c: Likewise. - * pthread_attr_getinheritsched.c: Likewise. - * pthread_setschedparam.c: Likewise. - * pthread_getschedparam.c: Likewise. - * sched_get_priority_max.c: Likewise. - * sched_get_priority_min.c: Likewise. - * sched_setscheduler.c: Likewise. - * sched_getscheduler.c: Likewise. - * sched_yield.c: Likewise. - - -2002-02-16 Ross Johnson <rpj@setup1.ise.canberra.edu.au - - Reduce executable size. - ----------------------- - When linking with the static library, only those - routines actually called, either directly or indirectly - should be included. - - [Gcc has the -ffunction-segments option to do this but MSVC - doesn't have this feature as far as I can determine. Other - compilers are undetermined as well. - rpj] - - * mutex.c: Split file into function segments. - * pthread_mutexattr_destroy.c: Separated routine from mutex.c - * pthread_mutexattr_getpshared.c: Likewise. - * pthread_mutexattr_gettype.c: Likewise. - * pthread_mutexattr_init.c: Likewise. - * pthread_mutexattr_setpshared.c: Likewise. - * pthread_mutexattr_settype.c: Likewise. - * ptw32_mutex_check_need_init.c: Likewise. - * pthread_mutex_destroy.c: Likewise. - * pthread_mutex_init.c: Likewise. - * pthread_mutex_lock.c: Likewise. - * pthread_mutex_timedlock.c: Likewise. - * pthread_mutex_trylock.c: Likewise. - * pthread_mutex_unlock.c: Likewise. - - * private.c: Split file into function segments. - * ptw32_InterlockedCompareExchange.c: Separated routine from private.c - * ptw32_callUserDestroyRoutines.c: Likewise. - * ptw32_getprocessors.c: Likewise. - * ptw32_processInitialize.c: Likewise. - * ptw32_processTerminate.c: Likewise. - * ptw32_threadDestroy.c: Likewise. - * ptw32_threadStart.c: Likewise. - * ptw32_throw.c: Likewise. - * ptw32_timespec.c: Likewise. - * ptw32_tkAssocCreate.c: Likewise. - * ptw32_tkAssocDestroy.c: Likewise. - - * rwlock.c: Split file into function segments. - * pthread_rwlockattr_destroy.c: Separated routine from rwlock.c - * pthread_rwlockattr_getpshared.c: Likewise. - * pthread_rwlockattr_init.c: Likewise. - * pthread_rwlockattr_setpshared.c: Likewise. - * ptw32_rwlock_check_need_init.c: Likewise. - * pthread_rwlock_destroy.c: Likewise. - * pthread_rwlock_init.c: Likewise. - * pthread_rwlock_rdlock.c: Likewise. - * pthread_rwlock_tryrdlock.c: Likewise. - * pthread_rwlock_trywrlock.c: Likewise. - * pthread_rwlock_unlock.c: Likewise. - * pthread_rwlock_wrlock.c: Likewise. - -2002-02-10 Ross Johnson <rpj@setup1.ise.canberra.edu.au - - Reduce executable size. - ----------------------- - When linking with the static library, only those - routines actually called, either directly or indirectly - should be included. - - [Gcc has the -ffunction-segments option to do this but MSVC - doesn't have this feature as far as I can determine. Other - compilers are undetermined as well. - rpj] - - * nonportable.c: Split file into function segments. - * np_delay.c: Separated routine from nonportable.c - * np_getw32threadhandle.c: Likewise. - * np_mutexattr_setkind.c: Likewise. - * np_mutexattr_getkind.c: Likewise. - * np_num_processors.c: Likewise. - * np_win32_attach_detach.c: Likewise. - - * misc.c: Split file into function segments. - * pthread_equal.c: Separated routine from nonportable.c. - * pthread_getconcurrency.c: Likewise. - * pthread_once.c: Likewise. - * pthread_self.c: Likewise. - * pthread_setconcurrency.c: Likewise. - * ptw32_calloc.c: Likewise. - * ptw32_new.c: Likewise. - * w32_CancelableWait.c: Likewise. - -2002-02-09 Ross Johnson <rpj@setup1.ise.canberra.edu.au - - Reduce executable size. - ----------------------- - When linking with the static library, only those - routines actually called, either directly or indirectly - should be included. - - [Gcc has the -ffunction-segments option to do this but MSVC - doesn't have this feature as far as I can determine. Other - compilers are undetermined as well. - rpj] - - * condvar.c: Split file into function segments. - * pthread_condattr_destroy.c: Separated routine from condvar.c. - * pthread_condattr_getpshared.c: Likewise. - * pthread_condattr_init.c: Likewise. - * pthread_condattr_setpshared.c: Likewise. - * ptw32_cond_check_need_init.c: Likewise. - * pthread_cond_destroy.c: Likewise. - * pthread_cond_init.c: Likewise. - * pthread_cond_signal.c: Likewise. - * pthread_cond_wait.c: Likewise. - -2002-02-07 Alexander Terekhov<TEREKHOV@de.ibm.com> - - * nonportable.c (pthread_delay_np): Make a true - cancelation point. Deferred cancels will interrupt the - wait. - -2002-02-07 Ross Johnson <rpj@setup1.ise.canberra.edu.au - - * misc.c (ptw32_new): Add creation of cancelEvent so that - implicit POSIX threads (Win32 threads with a POSIX face) - are cancelable; mainly so that pthread_delay_np doesn't fail - if called from the main thread. - * create.c (pthread_create): Remove creation of cancelEvent - from here; now in ptw32_new(). - - Reduce executable size. - ----------------------- - When linking with the static library, only those - routines actually called, either directly or indirectly - should be included. - - [Gcc has the -ffunction-segments option to do this but MSVC - doesn't have this feature as far as I can determine. Other - compilers are undetermined as well. - rpj] - - * barrier.c: All routines are now in separate compilation units; - This file is used to congregate the separate modules for - potential inline optimisation and backward build compatibility. - * cancel.c: Likewise. - * pthread_barrierattr_destroy.c: Separated routine from cancel.c. - * pthread_barrierattr_getpshared.c: Likewise. - * pthread_barrierattr_init.c: Likewise. - * pthread_barrierattr_setpshared.c: Likewise. - * pthread_barrier_destroy.c: Likewise. - * pthread_barrier_init.c: Likewise. - * pthread_barrier_wait.c: Likewise. - * pthread_cancel.c: Likewise. - * pthread_setcancelstate.c: Likewise. - * pthread_setcanceltype.c: Likewise. - * pthread_testcancel.c: Likewise. - -2002-02-04 Max Woodbury <mtew@cds.duke.edu> - - Reduced name space pollution. - ----------------------------- - When the appropriate symbols are defined, the headers - will restrict the definitions of new names. In particular, - it must be possible to NOT include the <windows.h> - header and related definitions with some combination - of symbol definitions. Secondly, it should be possible - that additional definitions should be limited to POSIX - compliant symbols by the definition of appropriate symbols. - - * pthread.h: POSIX conditionals. - * sched.h: POSIX conditionals. - * semaphore.h: POSIX conditionals. - - * semaphore.c: Included <limits.h>. - (sem_init): Changed magic 0x7FFFFFFFL to INT_MAX. - (sem_getvalue): Trial version. - - Reduce executable size. - ----------------------- - When linking with the static library, only those - routines actually called, either directly or indirectly - should be included. - - [Gcc has the -ffunction-segments option to do this but MSVC - doesn't have this feature as far as I can determine. Other - compilers are undetermined as well. - rpj] - - * semaphore.c: All routines are now in separate compilation units; - This file is used to congregate the separate modules for - potential inline optimisation and backward build compatibility. - * sem_close.c: Separated routine from semaphore.c. - * ptw32_decrease_semaphore.c: Likewise. - * sem_destroy.c: Likewise. - * sem_getvalue.c: Likewise. - * ptw32_increase_semaphore.c: Likewise. - * sem_init.c: Likewise. - * sem_open.c: Likewise. - * sem_post.c: Likewise. - * sem_post_multiple.c: Likewise. - * sem_timedwait.c: Likewise. - * sem_trywait.c: Likewise. - * sem_unlink.c: Likewise. - * sem_wait.c: Likewise. - -2002-02-04 Ross Johnson <rpj@setup1.ise.canberra.edu.au> - - The following extends the idea above to the rest of pthreads-win32 - rpj - - * attr.c: All routines are now in separate compilation units; - This file is used to congregate the separate modules for - potential inline optimisation and backward build compatibility. - * pthread_attr_destroy.c: Separated routine from attr.c. - * pthread_attr_getdetachstate.c: Likewise. - * pthread_attr_getscope.c: Likewise. - * pthread_attr_getstackaddr.c: Likewise. - * pthread_attr_getstacksize.c: Likewise. - * pthread_attr_init.c: Likewise. - * pthread_attr_is_attr.c: Likewise. - * pthread_attr_setdetachstate.c: Likewise. - * pthread_attr_setscope.c: Likewise. - * pthread_attr_setstackaddr.c: Likewise. - * pthread_attr_setstacksize.c: Likewise. - - * pthread.c: Agregation of agregate modules for super-inlineability. - -2002-02-02 Ross Johnson <rpj@setup1.ise.canberra.edu.au> - - * cancel.c: Rearranged some code and introduced checks - to disable cancelation at the start of a thread's cancelation - run to prevent double cancelation. The main problem - arises if a thread is canceling and then receives a subsequent - async cancel request. - * private.c: Likewise. - * condvar.c: Place pragmas around cleanup_push/pop to turn - off inline optimisation (/Obn where n>0 - MSVC only). Various - optimisation switches in MSVC turn this on, which interferes with - the way that cleanup handlers are run in C++ EH and SEH - code. Application code compiled with inline optimisation must - also wrap cleanup_push/pop blocks with the pragmas, e.g. - #pragma inline_depth(0) - pthread_cleanup_push(...) - ... - pthread_cleanup_pop(...) - #pragma inline_depth(8) - * rwlock.c: Likewise. - * mutex.c: Remove attempts to inline some functions. - * signal.c: Modify misleading comment. - -2002-02-01 Ross Johnson <rpj@setup1.ise.canberra.edu.au> - - * semaphore.c (sem_trywait): Fix missing errno return - for systems that define NEED_SEM (e.g. early WinCE). - * mutex.c (pthread_mutex_timedlock): Return ENOTSUP - for systems that define NEED_SEM since they don't - have sem_trywait(). - -2002-01-27 Ross Johnson <rpj@special.ise.canberra.edu.au> - - * mutex.c (pthread_mutex_timedlock): New function suggested by - Alexander Terekhov. The logic required to implement this - properly came from Alexander, with some collaboration - with Thomas Pfaff. - (pthread_mutex_unlock): Wrap the waiters check and sema - post in a critical section to prevent a race with - pthread_mutex_timedlock. - (ptw32_timed_semwait): New function; - returns a special result if the absolute timeout parameter - represents a time already passed when called; used by - pthread_mutex_timedwait(). Have deliberately not reused - the name "ptw32_sem_timedwait" because they are not the same - routine. - * condvar.c (ptw32_cond_timedwait): Use the new sem_timedwait() - instead of ptw32_sem_timedwait(), which now has a different - function. See previous. - * implement.h: Remove prototype for ptw32_sem_timedwait. - See next. - (pthread_mutex_t_): Add critical section element for access - to lock_idx during mutex post-timeout processing. - * semaphore.h (sem_timedwait): See next. - * semaphore.c (sem_timedwait): See next. - * private.c (ptw32_sem_timedwait): Move to semaphore.c - and rename as sem_timedwait(). - -2002-01-18 Ross Johnson <rpj@special.ise.canberra.edu.au> - - * sync.c (pthread_join): Was getting the exit code from the - calling thread rather than the joined thread if - defined(__MINGW32__) && !defined(__MSVCRT__). - -2002-01-15 Ross Johnson <rpj@special.ise.canberra.edu.au> - - * pthread.h: Unless the build explicitly defines __CLEANUP_SEH, - __CLEANUP_CXX, or __CLEANUP_C, then the build defaults to - __CLEANUP_C style cleanup. This style uses setjmp/longjmp - in the cancelation and thread exit implementations and therefore - won't do stack unwinding if linked to applications that have it - (e.g. C++ apps). This is currently consistent with most/all - commercial Unix POSIX threads implementations. - - * spin.c (pthread_spin_init): Edit renamed function call. - * nonportable.c (pthread_num_processors_np): New. - (pthread_getprocessors_np): Renamed to ptw32_getprocessors - and moved to private.c. - * private.c (pthread_getprocessors): Moved here from - nonportable.c. - * pthread.def (pthread_getprocessors_np): Removed - from export list. - - * rwlock.c (pthread_rwlockattr_init): New. - (pthread_rwlockattr_destroy): New. - (pthread_rwlockattr_getpshared): New. - (pthread_rwlockattr_setpshared): New. - -2002-01-14 Ross Johnson <rpj@special.ise.canberra.edu.au> - - * attr.c (pthread_attr_setscope): Fix struct pointer - indirection error introduced 2002-01-04. - (pthread_attr_getscope): Likewise. - -2002-01-12 Ross Johnson <rpj@special.ise.canberra.edu.au> - - * pthread.dsp (SOURCE): Add missing source files. - -2002-01-08 Ross Johnson <rpj@setup1.ise.canberra.edu.au> - - * mutex.c (pthread_mutex_trylock): use - ptw32_interlocked_compare_exchange function pointer - rather than ptw32_InterlockedCompareExchange() directly - to retain portability to non-iX86 processors, - e.g. WinCE etc. The pointer will point to the native - OS version of InterlockedCompareExchange() if the - OS supports it (see ChangeLog entry of 2001-10-17). - -2002-01-07 Thomas Pfaff <tpfaff@gmx.net>, Alexander Terekhov <TEREKHOV@de.ibm.com> - - * mutex.c (pthread_mutex_init): Remove critical - section calls. - (pthread_mutex_destroy): Likewise. - (pthread_mutex_unlock): Likewise. - (pthread_mutex_trylock): Likewise; uses - ptw32_InterlockedCompareExchange() to avoid need for - critical section; library is no longer i386 compatible; - recursive mutexes now increment the lock count rather - than return EBUSY; errorcheck mutexes return EDEADLCK - rather than EBUSY. This behaviour is consistent with the - Solaris pthreads implementation. - * implement.h (pthread_mutex_t_): Remove critical - section element - no longer needed. - - -2002-01-04 Ross Johnson <rpj@setup1.ise.canberra.edu.au> - - * attr.c (pthread_attr_setscope): Add more error - checking and actually store the scope value even - though it's not really necessary. - (pthread_attr_getscope): Return stored value. - * implement.h (pthread_attr_t_): Add new scope element. - * ANNOUNCE: Fix out of date comment next to - pthread_attr_setscope in conformance section. - -2001-12-21 Alexander Terekhov <TEREKHOV@de.ibm.com> - - * mutex.c (pthread_mutex_lock): Decrementing lock_idx was - not thread-safe. - (pthread_mutex_trylock): Likewise. - -2001-10-26 prionx@juno.com - - * semaphore.c (sem_init): Fix typo and missing bracket - in conditionally compiled code. Only older versions of - WinCE require this code, hence it doesn't normally get - tested; somehow when sem_t reverted to an opaque struct - the calloc NULL check was left in the conditionally included - section. - (sem_destroy): Likewise, the calloced sem_t wasn't being freed. - -2001-10-25 Ross Johnson <rpj@setup1.ise.canberra.edu.au> - - * GNUmakefile (libwsock32): Add to linker flags for - WSAGetLastError() and WSASetLastError(). - * Makefile (wsock32.lib): Likewise. - * create.c: Minor mostly inert changes. - * implement.h (PTW32_MAX): Move into here and renamed - from sched.h. - (PTW32_MIN): Likewise. - * GNUmakefile (TEST_ICE): Define if testing internal - implementation of InterlockedCompareExchange. - * Makefile (TEST_ICE): Likewise. - * private.c (TEST_ICE): Likewise. - -2001-10-24 Ross Johnson <rpj@setup1.ise.canberra.edu.au> - - * attr.c (pthread_attr_setstacksize): Quell warning - from LCC by conditionally compiling the stacksize - validity check. LCC correctly warns that the condition - (stacksize < PTHREAD_STACK_MIN) is suspicious - because STACK_MIN is 0 and stacksize is of type - size_t (or unsigned int). - -2001-10-17 Ross Johnson <rpj@setup1.ise.canberra.edu.au> - - * barrier.c: Move _LONG and _LPLONG defines into - implement.h; rename to PTW32_INTERLOCKED_LONG and - PTW32_INTERLOCKED_LPLONG respectively. - * spin.c: Likewise; ptw32_interlocked_compare_exchange used - in place of InterlockedCompareExchange directly. - * global.c (ptw32_interlocked_compare_exchange): Add - prototype for this new routine pointer to be used when - InterlockedCompareExchange isn't supported by Windows. - * nonportable.c (pthread_win32_process_attach_np): Check for - support of InterlockedCompareExchange in kernel32 and assign its - address to ptw32_interlocked_compare_exchange if it exists, or - our own ix86 specific implementation ptw32_InterlockedCompareExchange. - *private.c (ptw32_InterlockedCompareExchange): An - implementation of InterlockedCompareExchange() which is - specific to ix86; written directly in assembler for either - MSVC or GNU C; needed because Windows 95 doesn't support - InterlockedCompareExchange(). - - * sched.c (sched_get_priority_min): Extend to return - THREAD_PRIORITY_IDLE. - (sched_get_priority_max): Extend to return - THREAD_PRIORITY_CRITICAL. - -2001-10-15 Ross Johnson <rpj@setup1.ise.canberra.edu.au> - - * spin.c (pthread_spin_lock): PTHREAD_SPINLOCK_INITIALIZER - was causing a program fault. - (pthread_spin_init): Could have alloced memory - without freeing under some error conditions. - - * mutex.c (pthread_mutex_init): Move memory - allocation of mutex struct after checking for - PROCESS_SHARED. - -2001-10-12 Ross Johnson <rpj@setup1.ise.canberra.edu.au> - - * spin.c (pthread_spin_unlock): Was not returning - EPERM if the spinlock was not locked, for multi CPU - machines. - -2001-10-08 Ross Johnson <rpj@setup1.ise.canberra.edu.au> - - * spin.c (pthread_spin_trylock): Was not returning - EBUSY for multi CPU machines. - -2001-08-24 Ross Johnson <rpj@setup1.ise.canberra.edu.au> - - * condvar.c (pthread_cond_destroy): Remove cv element - that is no longer used. - * implement.h: Likewise. - -2001-08-23 Alexander Terekhov <TEREKHOV@de.ibm.com> - - * condvar.c (pthread_cond_destroy): fix bug with - respect to deadlock in the case of concurrent - _destroy/_unblock; a condition variable can be destroyed - immediately after all the threads that are blocked on - it are awakened. - -2001-08-23 Phil Frisbie, Jr. <phil@hawksoft.com> - - * tsd.c (pthread_getspecific): Preserve the last - winsock error [from WSAGetLastError()]. - -2001-07-18 Scott McCaskill <scott@magruder.org> - - * mutex.c (pthread_mutexattr_init): Return ENOMEM - immediately and don't dereference the NULL pointer - if calloc fails. - (pthread_mutexattr_getpshared): Don't dereference - a pointer that is possibly NULL. - * barrier.c (pthread_barrierattr_init): Likewise - (pthread_barrierattr_getpshared): Don't dereference - a pointer that is possibly NULL. - * condvar.c (pthread_condattr_getpshared): Don't dereference - a pointer that is possibly NULL. - -2001-07-15 Ross Johnson <rpj@setup1.ise.canberra.edu.au> - - * rwlock.c (pthread_rwlock_wrlock): Is allowed to be - a cancelation point; re-enable deferred cancelability - around the CV call. - -2001-07-10 Ross Johnson <rpj@setup1.ise.canberra.edu.au> - - * barrier.c: Still more revamping. The exclusive access - mutex isn't really needed so it has been removed and replaced - by an InterlockedDecrement(). nSerial has been removed. - iStep is now dual-purpose. The process shared attribute - is now stored in the barrier struct. - * implement.h (pthread_barrier_t_): Lost some/gained one - elements. - * private.c (ptw32_threadStart): Removed some comments. - -2001-07-10 Ross Johnson <rpj@setup1.ise.canberra.edu.au> - - * barrier.c: Revamped to fix the race condition. Two alternating - semaphores are used instead of the PulseEvent. Also improved - overall throughput by returning PTHREAD_BARRIER_SERIAL_THREAD - to the first waking thread. - * implement.h (pthread_barrier_t_): Revamped. - -2001-07-09 Ross Johnson <rpj@setup1.ise.canberra.edu.au> - - * barrier.c: Fix several bugs in all routines. Now passes - tests/barrier5.c which is fairly rigorous. There is still - a non-optimal work-around for a race condition between - the barrier breeched event signal and event wait. Basically - the last (signalling) thread to hit the barrier yields - to allow any other threads, which may have lost the race, - to complete. - -2001-07-07 Ross Johnson <rpj@setup1.ise.canberra.edu.au> - - * barrier.c: Changed synchronisation mechanism to a - Win32 manual reset Event and use PulseEvent to signal - waiting threads. If the implementation continued to use - a semaphore it would require a second semaphore and - some management to use them alternately as barriers. A - single semaphore allows threads to cascade from one barrier - through the next, leaving some threads blocked at the first. - * implement.h (pthread_barrier_t_): As per above. - * general: Made a number of other routines inlinable. - -2001-07-07 Ross Johnson <rpj@setup1.ise.canberra.edu.au> - - * spin.c: Revamped and working; included static initialiser. - Now beta level. - * barrier.c: Likewise. - * condvar.c: Macro constant change; inline auto init routine. - * mutex.c: Likewise. - * rwlock.c: Likewise. - * private.c: Add support for spinlock initialiser. - * global.c: Likewise. - * implement.h: Likewise. - * pthread.h (PTHREAD_SPINLOCK_INITIALIZER): Fix typo. - -2001-07-05 Ross Johnson <rpj@setup1.ise.canberra.edu.au> - - * barrier.c: Remove static initialisation - irrelevent - for this object. - * pthread.h (PTHREAD_BARRIER_INITIALIZER): Removed. - * rwlock.c (pthread_rwlock_wrlock): This routine is - not a cancelation point - disable deferred - cancelation around call to pthread_cond_wait(). - -2001-07-05 Ross Johnson <rpj@setup1.ise.canberra.edu.au> - - * spin.c: New module implementing spin locks. - * barrier.c: New module implementing barriers. - * pthread.h (_POSIX_SPIN_LOCKS): defined. - (_POSIX_BARRIERS): Defined. - (pthread_spin_*): Defined. - (pthread_barrier*): Defined. - (PTHREAD_BARRIER_SERIAL_THREAD): Defined. - * implement.h (pthread_spinlock_t_): Defined. - (pthread_barrier_t_): Defined. - (pthread_barrierattr_t_): Defined. - - * mutex.c (pthread_mutex_lock): Return with the error - if an auto-initialiser initialisation fails. - - * nonportable.c (pthread_getprocessors_np): New; gets the - number of available processors for the current process. - -2001-07-03 Ross Johnson <rpj@setup1.ise.canberra.edu.au> - - * pthread.h (_POSIX_READER_WRITER_LOCKS): Define it - if not already defined. - -2001-07-01 Alexander Terekhov <TEREKHOV@de.ibm.com> - - * condvar.c: Fixed lost signal bug reported by Timur Aydin - (taydin@snet.net). - [RPJ (me) didn't translate the original algorithm - correctly.] - * semaphore.c: Added sem_post_multiple; this is a useful - routine, but it doesn't appear to be standard. For now it's - not an exported function. - -2001-06-25 Ross Johnson <rpj@setup1.ise.canberra.edu.au> - - * create.c (pthread_create): Add priority inheritance - attributes. - * mutex.c (pthread_mutex_lock): Remove some overhead for - PTHREAD_MUTEX_NORMAL mutex types. Specifically, avoid - calling pthread_self() and pthread_equal() to check/set - the mutex owner. Introduce a new pseudo owner for this - type. Test results suggest increases in speed of up to - 90% for non-blocking locks. - This is the default type of mutex used internally by other - synchronising objects, ie. condition variables and - read-write locks. The test rwlock7.c shows about a - 30-35% speed increase over snapshot 2001-06-06. The - price of this is that the application developer - must ensure correct behaviour, or explicitly set the - mutex to a safer type such as PTHREAD_MUTEX_ERRORCHECK. - For example, PTHREAD_MUTEX_NORMAL (or PTHREAD_MUTEX_DEFAULT) - type mutexes will not return an error if a thread which is not - the owner calls pthread_mutex_unlock. The call will succeed - in unlocking the mutex if it is currently locked, but a - subsequent unlock by the true owner will then fail with EPERM. - This is however consistent with some other implementations. - (pthread_mutex_unlock): Likewise. - (pthread_mutex_trylock): Likewise. - (pthread_mutex_destroy): Likewise. - * attr.c (pthread_attr_init): PTHREAD_EXPLICIT_SCHED is the - default inheritance attribute; THREAD_PRIORITY_NORMAL is - the default priority for new threads. - * sched.c (pthread_attr_setschedpolicy): Added routine. - (pthread_attr_getschedpolicy): Added routine. - (pthread_attr_setinheritsched): Added routine. - (pthread_attr_getinheritsched): Added routine. - * pthread.h (sched_rr_set_interval): Added as a macro; - returns -1 with errno set to ENOSYS. - -2001-06-23 Ross Johnson <rpj@setup1.ise.canberra.edu.au> - - *sched.c (pthread_attr_setschedparam): Add priority range - check. - (sched_setscheduler): New function; checks for a valid - pid and policy; checks for permission to set information - in the target process; expects pid to be a Win32 process ID, - not a process handle; the only scheduler policy allowed is - SCHED_OTHER. - (sched_getscheduler): Likewise, but checks for permission - to query. - * pthread.h (SCHED_*): Moved to sched.h as defined in the - POSIX standard. - * sched.h (SCHED_*): Moved from pthread.h. - (pid_t): Defined if necessary. - (sched_setscheduler): Defined. - (sched_getscheduler): Defined. - * pthread.def (sched_setscheduler): Exported. - (sched_getscheduler): Likewise. - -2001-06-23 Ralf Brese <Ralf.Brese@pdb4.siemens.de> - - * create.c (pthread_create): Set thread priority from - thread attributes. - -2001-06-18 Ross Johnson <rpj@setup1.ise.canberra.edu.au> - - * Made organisational-only changes to UWIN additions. - * dll.c (dllMain): Moved UWIN process attach code - to pthread_win32_process_attach_np(); moved - instance of pthread_count to global.c. - * global.c (pthread_count): Moved from dll.c. - * nonportable.c (pthread_win32_process_attach_np): - Moved _UWIN code to here from dll.c. - * implement.h (pthread_count): Define extern int. - * create.c (pthread_count): Remove extern int. - * private.c (pthread_count): Likewise. - * exit.c (pthread_count): Likewise. - -2001-06-18 David Korn <dgk@research.att.com> - - * dll.c: Added changes necessary to work with UWIN. - * create.c: Likewise. - * pthread.h: Likewise. - * misc.c: Likewise. - * exit.c: Likewise. - * private.c: Likewise. - * implement.h: Likewise. - There is some room at the start of struct pthread_t_ - to implement the signal semantics in UWIN's posix.dll - although this is not yet complete. - * Nmakefile: Compatible with UWIN's Nmake utility. - * Nmakefile.tests: Likewise - for running the tests. - -2001-06-08 Ross Johnson <rpj@setup1.ise.canberra.edu.au> - - * semaphore.h (sem_t): Fixed for compile and test. - * implement.h (sem_t_): Likewise. - * semaphore.c: Likewise. - * private.c (ptw32_sem_timedwait): Updated to use new - opaque sem_t. - -2001-06-06 Ross Johnson <rpj@setup1.ise.canberra.edu.au> - - * semaphore.h (sem_t): Is now an opaque pointer; - moved actual definition to implement.h. - * implement.h (sem_t_): Move here from semaphore.h; - was the definition of sem_t. - * semaphore.c: Wherever necessary, changed use of sem - from that of a pointer to a pointer-pointer; added - extra checks for a valid sem_t; NULL sem_t when - it is destroyed; added extra checks when creating - and destroying sem_t elements in the NEED_SEM - code branches; changed from using a pthread_mutex_t - ((*sem)->mutex) to CRITICAL_SECTION ((*sem)->sem_lock_cs) - in NEED_SEM branches for access serialisation. - -2001-06-06 Ross Johnson <rpj@setup1.ise.canberra.edu.au> - - * mutex.c (pthread_mutexattr_init): Remove - ptw32_mutex_default_kind. - -2001-06-05 Ross Johnson <rpj@setup1.ise.canberra.edu.au> - - * nonportable.c (pthread_mutex_setdefaultkind_np): - Remove - should not have been included in the first place. - (pthread_mutex_getdefaultkind_np): Likewise. - * global.c (ptw32_mutex_default_kind): Likewise. - * mutex.c (pthread_mutex_init): Remove use of - ptw32_mutex_default_kind. - * pthread.h (pthread_mutex_setdefaultkind_np): Likewise. - (pthread_mutex_getdefaultkind_np): Likewise. - * pthread.def (pthread_mutexattr_setkind_np): Added. - (pthread_mutexattr_getkind_np): Likewise. - - * README: Many changes that should have gone in before - the last snapshot. - * README.NONPORTABLE: New - referred to by ANNOUNCE - but never created; documents the non-portable routines - included in the library - moved from README with new - routines added. - * ANNOUNCE (pthread_mutexattr_setkind_np): Added to - compliance list. - (pthread_mutexattr_getkind_np): Likewise. - -2001-06-04 Ross Johnson <rpj@setup1.ise.canberra.edu.au> - - * condvar.c: Add original description of the algorithm as - developed by Terekhov and Thomas, plus reference to - README.CV. - -2001-06-03 Alexander Terekhov <TEREKHOV@de.ibm.com>, Louis Thomas <lthomas@arbitrade.com> - - * condvar.c (pthread_cond_init): Completely revamped. - (pthread_cond_destroy): Likewise. - (ptw32_cond_wait_cleanup): Likewise. - (ptw32_cond_timedwait): Likewise. - (ptw32_cond_unblock): New general signaling routine. - (pthread_cond_signal): Now calls ptw32_cond_unblock. - (pthread_cond_broadcast): Likewise. - * implement.h (pthread_cond_t_): Revamped. - * README.CV: New; explanation of the above changes. - -2001-05-30 Ross Johnson <rpj@setup1.ise.canberra.edu.au> - - * pthread.h (rand_r): Fake using _seed argument to quell - compiler warning (compiler should optimise this away later). - - * GNUmakefile (OPT): Leave symbolic information out of the library - and increase optimisation level - for smaller faster prebuilt - dlls. - -2001-05-29 Milan Gardian <Milan.Gardian@LEIBINGER.com> - - * Makefile: fix typo. - * pthreads.h: Fix problems with stdcall/cdecl conventions, in particular - remove the need for PT_STDCALL everywhere; remove warning supression. - * (errno): Fix the longstanding "inconsistent dll linkage" problem - with errno; now also works with /MD debugging libs - - warnings emerged when compiling pthreads library with /MD (or /MDd) - compiler switch, instead of /MT (or /MTd) (i.e. when compiling pthreads - using Multithreaded DLL CRT instead of Multithreaded statically linked - CRT). - * create.c (pthread_create): Likewise; fix typo. - * private.c (ptw32_threadStart): Eliminate use of terminate() which doesn't - throw exceptions. - * Remove unnecessary #includes from a number of modules - - [I had to #include malloc.h in implement.h for gcc - rpj]. - -2001-05-29 Thomas Pfaff <tpfaff@gmx.net> - - * pthread.h (PTHREAD_MUTEX_DEFAULT): New; equivalent to - PTHREAD_MUTEX_DEFAULT_NP. - * (PTHREAD_MUTEX_NORMAL): Similarly. - * (PTHREAD_MUTEX_ERRORCHECK): Similarly. - * (PTHREAD_MUTEX_RECURSIVE): Similarly. - * (pthread_mutex_setdefaultkind_np): New; Linux compatibility stub - for pthread_mutexattr_settype. - * (pthread_mutexattr_getkind_np): New; Linux compatibility stub - for pthread_mutexattr_gettype. - * mutex.c (pthread_mutexattr_settype): New; allow - the following types of mutex: - PTHREAD_MUTEX_DEFAULT_NP - PTHREAD_MUTEX_NORMAL_NP - PTHREAD_MUTEX_ERRORCHECK_NP - PTHREAD_MUTEX_RECURSIVE_NP - * Note that PTHREAD_MUTEX_DEFAULT is equivalent to - PTHREAD_MUTEX_NORMAL - ie. mutexes should no longer - be recursive by default, and a thread will deadlock if it - tries to relock a mutex it already owns. This is inline with - other pthreads implementations. - * (pthread_mutex_lock): Process the lock request - according to the mutex type. - * (pthread_mutex_init): Eliminate use of Win32 mutexes as the - basis of POSIX mutexes - instead, a combination of one critical section - and one semaphore are used in conjunction with Win32 Interlocked* routines. - * (pthread_mutex_destroy): Likewise. - * (pthread_mutex_lock): Likewise. - * (pthread_mutex_trylock): Likewise. - * (pthread_mutex_unlock): Likewise. - * Use longjmp/setjmp to implement cancelation when building the library - using a C compiler which doesn't support exceptions, e.g. gcc -x c (note - that gcc -x c++ uses exceptions). - * Also fixed some of the same typos and eliminated PT_STDCALL as - Milan Gardian's patches above. - -2001-02-07 Alexander Terekhov <TEREKHOV@de.ibm.com> - - * rwlock.c: Revamped. - * implement.h (pthread_rwlock_t_): Redefined. - This implementation does not have reader/writer starvation problem. - Rwlock attempts to behave more like a normal mutex with - races and scheduling policy determining who is more important; - It also supports recursive locking, - has less synchronization overhead (no broadcasts at all, - readers are not blocked on any condition variable) and seem to - be faster than the current implementation [W98 appears to be - approximately 15 percent faster at least - on top of speed increase - from Thomas Pfaff's changes to mutex.c - rpj]. - -2000-12-29 Ross Johnson <rpj@special.ise.canberra.edu.au> - - * Makefile: Back-out "for" loops which don't work. - - * GNUmakefile: Remove the fake.a target; add the "realclean" - target; don't remove built libs under the "clean" target. - - * config.h: Add a guard against multiple inclusion. - - * semaphore.h: Add some defines from config.h to make - semaphore.h independent of config.h when building apps. - - * pthread.h (_errno): Back-out previous fix until we know how to - fix it properly. - - * implement.h (lockCount): Add missing element to pthread_mutex_t_. - - * sync.c (pthread_join): Spelling fix in comment. - - * private.c (ptw32_threadStart): Reset original termination - function (C++). - (ptw32_threadStart): Cleanup detached threads early in case - the library is statically linked. - (ptw32_callUserDestroyRoutines): Remove [SEH] __try block from - destructor call so that unhandled exceptions will be passed through - to the system; call terminate() from [C++] try block for the same - reason. - - * tsd.c (pthread_getspecific): Add comment. - - * mutex.c (pthread_mutex_init): Initialise new elements in - pthread_mutex_t. - (pthread_mutex_unlock): Invert "pthread_equal()" test. - -2000-12-28 Ross Johnson <rpj@special.ise.canberra.edu.au> - - * semaphore.c (mode_t): Use ifndef HAVE_MODE_T to include definition. - - * config.h.in (HAVE_MODE_T): Added. - (_UWIN): Start adding defines for the UWIN package. - - * private.c (ptw32_threadStart): Unhandled exceptions are - now passed through to the system to deal with. This is consistent - with normal Windows behaviour. C++ applications may use - set_terminate() to override the default behaviour which is - to call ptw32_terminate(). Ptw32_terminate() cleans up some - POSIX thread stuff before calling the system default function - which calls abort(). The users termination function should conform - to standard C++ semantics which is to not return. It should - exit the thread (call pthread_exit()) or exit the application. - * private.c (ptw32_terminate): Added as the default set_terminate() - function. It calls the system default function after cleaning up - some POSIX thread stuff. - - * implement.h (ptw32_try_enter_critical_section): Move - declaration. - * global.c (ptw32_try_enter_critical_section): Moved - from dll.c. - * dll.c: Move process and thread attach/detach code into - functions in nonportable.c. - * nonportable.c (pthread_win32_process_attach_np): Process - attach code from dll.c is now available to static linked - applications. - * nonportable.c (pthread_win32_process_detach_np): Likewise. - * nonportable.c (pthread_win32_thread_attach_np): Likewise. - * nonportable.c (pthread_win32_thread_detach_np): Likewise. - - * pthread.h: Add new non-portable prototypes for static - linked applications. - - * GNUmakefile (OPT): Increase optimisation flag and remove - debug info flag. - - * pthread.def: Add new non-portable exports for static - linked applications. - -2000-12-11 Ross Johnson <rpj@special.ise.canberra.edu.au> - - * FAQ: Update Answer 6 re getting a fully working - Mingw32 built library. - -2000-10-10 Steven Reddie <smr@essemer.com.au> - - * misc.c (pthread_self): Restore Win32 "last error" - cleared by TlsGetValue() call in - pthread_getspecific() - -2000-09-20 Arthur Kantor <akantor@bexusa.com> - - * mutex.c (pthread_mutex_lock): Record the owner - of the mutex. This requires also keeping count of - recursive locks ourselves rather than leaving it - to Win32 since we need to know when to NULL the - thread owner when the mutex is unlocked. - (pthread_mutex_trylock): Likewise. - (pthread_mutex_unlock): Check that the calling - thread owns the mutex, decrement the recursive - lock count, and NULL the owner if zero. Return - EPERM if the mutex is owned by another thread. - * implement.h (pthread_mutex_t_): Add ownerThread - and lockCount members. - -2000-09-13 Jef Gearhart <jgearhart@tpssys.com> - - * mutex.c (pthread_mutex_init): Call - TryEnterCriticalSection through the pointer - rather than directly so that the dll can load - on Windows versions that can't resolve the - function, eg. Windows 95 - -2000-09-09 Ross Johnson <rpj@special.ise.canberra.edu.au> - - * pthread.h (ctime_r): Fix arg. - -2000-09-08 Ross Johnson <rpj@special.ise.canberra.edu.au> - - * GNUmakefile(_WIN32_WINNT=0x400): Define in CFLAGS; - doesn't seem to be needed though. - - * cancel.c (pthread_cancel): Must get "self" through - calling pthread_self() which will ensure a POSIX thread - struct is built for non-POSIX threads; return an error - if this fails - - Ollie Leahy <ollie@mpt.ie> - (pthread_setcancelstate): Likewise. - (pthread_setcanceltype): Likewise. - * misc.c (ptw32_cancelable_wait): Likewise. - - * private.c (ptw32_tkAssocCreate): Remove unused #if 0 - wrapped code. - - * pthread.h (ptw32_get_exception_services_code): - Needed to be forward declared unconditionally. - -2000-09-06 Ross Johnson <rpj@special.ise.canberra.edu.au> - - * cancel.c (pthread_cancel): If called from the main - thread "self" would be NULL; get "self" via pthread_self() - instead of directly from TLS so that an implicit - pthread object is created. - - * misc.c (pthread_equal): Strengthen test for NULLs. - -2000-09-02 Ross Johnson <rpj@special.ise.canberra.edu.au> - - * condvar.c (ptw32_cond_wait_cleanup): Ensure that all - waking threads check if they are the last, and notify - the broadcaster if so - even if an error occurs in the - waiter. - - * semaphore.c (_decrease_semaphore): Should be - a call to ptw32_decrease_semaphore. - (_increase_semaphore): Should be a call to - ptw32_increase_semaphore. - - * misc.c (ptw32_cancelable_wait): Renamed from - CancelableWait. - * rwlock.c (_rwlock_check*): Renamed to - ptw32_rwlock_check*. - * mutex.c (_mutex_check*): Renamed to ptw32_mutex_check*. - * condvar.c (cond_timed*): Renamed to ptw32_cond_timed*. - (_cond_check*): Renamed to ptw32_cond_check*. - (cond_wait_cleanup*): Rename to ptw32_cond_wait_cleanup*. - (ptw32_cond_timedwait): Add comments. - -2000-08-22 Ross Johnson <rpj@setup1.ise.canberra.edu.au> - - * private.c (ptw32_throw): Fix exception test; - move exceptionInformation declaration. - - * tsd.c (pthread_key_create): newkey wrongly declared. - - * pthread.h: Fix comment block. - -2000-08-18 Ross Johnson <rpj@setup1.ise.canberra.edu.au> - - * mutex.c (pthread_mutex_destroy): Check that the mutex isn't - held; invalidate the mutex as early as possible to avoid - contention; not perfect - FIXME! - - * rwlock.c (pthread_rwlock_init): Remove redundant assignment - to "rw". - (pthread_rwlock_destroy): Invalidate the rwlock before - freeing up any of it's resources - to avoid contention. - - * private.c (ptw32_tkAssocCreate): Change assoc->lock - to use a dynamically initialised mutex - only consumes - a W32 mutex or critical section when first used, - not before. - - * mutex.c (pthread_mutex_init): Remove redundant assignment - to "mx". - (pthread_mutexattr_destroy): Set attribute to NULL - before freeing it's memory - to avoid contention. - - * implement.h (PTW32_EPS_CANCEL/PTW32_EPS_EXIT): - Must be defined for all compilers - used as generic - exception selectors by ptw32_throw(). - - * Several: Fix typos from scripted edit session - yesterday. - - * nonportable.c (pthread_mutexattr_setforcecs_np): - Moved this function from mutex.c. - (pthread_getw32threadhandle_np): New function to - return the win32 thread handle that the POSIX - thread is using. - * mutex.c (pthread_mutexattr_setforcecs_np): - Moved to new file "nonportable.c". - - * pthread.h (PTW32_BUILD): Only redefine __except - and catch compiler keywords if we aren't building - the library (ie. PTW32_BUILD is not defined) - - this is safer than defining and then undefining - if not building the library. - * implement.h: Remove __except and catch undefines. - * Makefile (CFLAGS): Define PTW32_BUILD. - * GNUmakefile (CFLAGS): Define PTW32_BUILD. - - * All appropriate: Change Pthread_exception* to - ptw32_exception* to be consistent with internal - identifier naming. - - * private.c (ptw32_throw): New function to provide - a generic exception throw for all internal - exceptions and EH schemes. - (ptw32_threadStart): pthread_exit() value is now - returned via the thread structure exitStatus - element. - * exit.c (pthread_exit): pthread_exit() value is now - returned via the thread structure exitStatus - element. - * cancel.c (ptw32_cancel_self): Now uses ptw32_throw. - (pthread_setcancelstate): Ditto. - (pthread_setcanceltype): Ditto. - (pthread_testcancel): Ditto. - (pthread_cancel): Ditto. - * misc.c (CancelableWait): Ditto. - * exit.c (pthread_exit): Ditto. - * All applicable: Change PTW32_ prefix to - PTW32_ prefix to remove leading underscores - from private library identifiers. - -2000-08-17 Ross Johnson <rpj@special.ise.canberra.edu.au> - - * All applicable: Change _pthread_ prefix to - ptw32_ prefix to remove leading underscores - from private library identifiers (single - and double leading underscores are reserved in the - ANSI C standard for compiler implementations). - - * tsd.c (pthread_create_key): Initialise temporary - key before returning it's address to avoid race - conditions. - -2000-08-13 Ross Johnson <rpj@special.ise.canberra.edu.au> - - * errno.c: Add _MD precompile condition; thus far - had no effect when using /MD compile option but I - thnk it should be there. - - * exit.c: Add __cplusplus to various #if lines; - was compiling SEH code even when VC++ had - C++ compile options. - - * private.c: ditto. - - * create.c (pthread_create): Add PT_STDCALL macro to - function pointer arg in _beginthread(). - - * pthread.h: PT_STDCALL really does need to be defined - in both this and impliment.h; don't set it to __cdecl - - this macro is only used to extend function pointer - casting for functions that will be passed as parameters. - (~PThreadCleanup): add cast and group expression. - (_errno): Add _MD compile conditional. - (PtW32NoCatchWarn): Change pragma message. - - * implement.h: Move and change PT_STDCALL define. - - * need_errno.h: Add _MD to compilation conditional. - - * GNUmakefile: Substantial rewrite for new naming - convention; set for nil optimisation (turn it up - when we have a working library build; add target - "fake.a" to build a libpthreadw32.a from the VC++ - built DLL pthreadVCE.dll. - - * pthread.def (LIBRARY): Don't specify in the .def - file - it is specified on the linker command line - since we now use the same .def file for variously - named .dlls. - - * Makefile: Substantial rewrite for new naming - convention; default nmake target only issues a - help message; run nmake with specific target - corresponding to the EH scheme being used. - - * README: Update information; add naming convention - explanation. - - * ANNOUNCE: Update information. - -2000-08-12 Ross Johnson <rpj@special.ise.canberra.edu.au> - - * pthread.h: Add compile-time message when using - MSC_VER compiler and C++ EH to warn application - programmers to use PtW32Catch instead of catch(...) - if they want cancelation and pthread_exit to work. - - * implement.h: Remove #include <semaphore.h>; we - use our own local semaphore.h. - -2000-08-10 Ross Johnson <rpj@special.ise.canberra.edu.au> - - * cleanup.c (pthread_pop_cleanup): Remove _pthread - prefix from __except and catch keywords; implement.h - now simply undefines ptw32__except and - ptw32_catch if defined; VC++ was not textually - substituting ptw32_catch etc back to catch as - it was redefined; the reason for using the prefixed - version was to make it clear that it was not using - the pthread.h redefined catch keyword. - - * private.c (ptw32_threadStart): Ditto. - (ptw32_callUserDestroyRoutines): Ditto. - - * implement.h (ptw32__except): Remove #define. - (ptw32_catch): Remove #define. - - * GNUmakefile (pthread.a): New target to build - libpthread32.a from pthread.dll using dlltool. - - * buildlib.bat: Duplicate cl commands with args to - build C++ EH version of pthread.dll; use of .bat - files is redundant now that nmake compatible - Makefile is included; used as a kludge only now. - - * Makefile: Localise some macros and fix up the clean: - target to extend it and work properly. - - * CONTRIBUTORS: Add contributors. - - * ANNOUNCE: Updated. - - * README: Updated. - -2000-08-06 Ross Johnson <rpj@special.ise.canberra.edu.au> - - * pthread.h: Remove #warning - VC++ doesn't accept it. - -2000-08-05 Ross Johnson <rpj@special.ise.canberra.edu.au> - - * pthread.h (PtW32CatchAll): Add macro. When compiling - applications using VC++ with C++ EH rather than SEH - 'PtW32CatchAll' must be used in place of any 'catch( ... )' - if the application wants pthread cancelation or - pthread_exit() to work. - -2000-08-03 Ross Johnson <rpj@special.ise.canberra.edu.au> - - * pthread.h: Add a base class ptw32_exception for - library internal exceptions and change the "catch" - re-define macro to use it. - -2000-08-02 Ross Johnson <rpj@special.ise.canberra.edu.au> - - * GNUmakefile (CFLAGS): Add -mthreads. - Add new targets to generate cpp and asm output. - - * sync.c (pthread_join): Remove dead code. - -2000-07-25 Tristan Savatier <tristan@mpegtv.com> - - * sched.c (sched_get_priority_max): Handle different WinCE and - Win32 priority values together. - (sched_get_priority_min): Ditto. - -2000-07-25 Ross Johnson <rpj@special.ise.canberra.edu.au> - - * create.c (pthread_create): Force new threads to wait until - pthread_create has the new thread's handle; we also retain - a local copy of the handle for internal use until - pthread_create returns. - - * private.c (ptw32_threadStart): Initialise ei[]. - (ptw32_threadStart): When beginthread is used to start the - thread, force waiting until the creator thread had the - thread handle. - - * cancel.c (ptw32_cancel_thread): Include context switch - code for defined(_X86_) environments in addition to _M_IX86. - - * rwlock.c (pthread_rwlock_destroy): Assignment changed - to avoid compiler warning. - - * private.c (ptw32_get_exception_services_code): Cast - NULL return value to avoid compiler warning. - - * cleanup.c (pthread_pop_cleanup): Initialise "cleanup" variable - to avoid compiler warnings. - - * misc.c (ptw32_new): Change "new" variable to "t" to avoid - confusion with the C++ keyword of the same name. - - * condvar.c (cond_wait_cleanup): Initialise lastWaiter variable. - (cond_timedwait): Remove unused local variables. to avoid - compiler warnings. - - * dll.c (dllMain): Remove 2000-07-21 change - problem - appears to be in pthread_create(). - -2000-07-22 Ross Johnson <rpj@special.ise.canberra.edu.au> - - * tsd.c (pthread_key_create): If a destructor was given - and the pthread_mutex_init failed, then would try to - reference a NULL pointer (*key); eliminate this section of - code by using a dynamically initialised mutex - (PTHREAD_MUTEX_INITIALIZER). - - * tsd.c (pthread_setspecific): Return an error if - unable to set the value; simplify cryptic conditional. - - * tsd.c (pthread_key_delete): Locking threadsLock relied - on mutex_lock returning an error if the key has no destructor. - ThreadsLock is only initialised if the key has a destructor. - Making this mutex a static could reduce the number of mutexes - used by an application since it is actually created only at - first use and it's often destroyed soon after. - -2000-07-22 Ross Johnson <rpj@special.ise.canberra.edu.au> - - * FAQ: Added Q5 and Q6. - -2000-07-21 David Baggett <dmb@itasoftware.com> - - * dll.c: Include resource leakage work-around. This is a - partial FIXME which doesn't stop all leakage. The real - problem needs to be found and fixed. - -2000-07-21 Ross Johnson <rpj@setup1.ise.canberra.edu.au> - - * create.c (pthread_create): Set threadH to 0 (zero) - everywhere. Some assignments were using NULL. Maybe - it should be NULL everywhere - need to check. (I know - they are nearly always the same thing - but not by - definition.) - - * misc.c (pthread_self): Try to catch NULL thread handles - at the point where they might be generated, even though - they should always be valid at this point. - - * tsd.c (pthread_setspecific): return an error value if - pthread_self() returns NULL. - - * sync.c (pthread_join): return an error value if - pthread_self() returns NULL. - - * signal.c (pthread_sigmask): return an error value if - pthread_self() returns NULL. - -2000-03-02 Ross Johnson <rpj@special.ise.canberra.edu.au> - - * attr.c (pthread_attr_init): Set default stacksize to zero (0) - rather than PTHREAD_STACK_MIN even though these are now the same. - - * pthread.h (PTHREAD_STACK_MIN): Lowered to 0. - -2000-01-28 Ross Johnson <rpj@special.ise.canberra.edu.au> - - * mutex.c (pthread_mutex_init): Free mutex if it has been alloced; - if critical sections can be used instead of Win32 mutexes, test - that the critical section works and return an error if not. - -2000-01-07 Ross Johnson <rpj@special.ise.canberra.edu.au> - - * cleanup.c (pthread_pop_cleanup): Include SEH code only if MSC is not - compiling as C++. - (pthread_push_cleanup): Include SEH code only if MSC is not - compiling as C++. - - * pthread.h: Include SEH code only if MSC is not - compiling as C++. - - * implement.h: Include SEH code only if MSC is not - compiling as C++. - - * cancel.c (ptw32_cancel_thread): Add _M_IX86 check. - (pthread_testcancel): Include SEH code only if MSC is not - compiling as C++. - (ptw32_cancel_self): Include SEH code only if MSC is not - compiling as C++. - -2000-01-06 Erik Hensema <erik.hensema@group2000.nl> - - * Makefile: Remove inconsistencies in 'cl' args - -2000-01-04 Ross Johnson <rpj@special.ise.canberra.edu.au> - - * private.c (ptw32_get_exception_services_code): New; returns - value of EXCEPTION_PTW32_SERVICES. - (ptw32_processInitialize): Remove initialisation of - ptw32_exception_services which is no longer needed. - - * pthread.h (ptw32_exception_services): Remove extern. - (ptw32_get_exception_services_code): Add function prototype; - use this to return EXCEPTION_PTW32_SERVICES value instead of - using the ptw32_exception_services variable which I had - trouble exporting through pthread.def. - - * global.c (ptw32_exception_services): Remove declaration. - -1999-11-22 Ross Johnson <rpj@special.ise.canberra.edu.au> - - * implement.h: Forward declare ptw32_new(); - - * misc.c (ptw32_new): New; alloc and initialise a new pthread_t. - (pthread_self): New thread struct is generated by new routine - ptw32_new(). - - * create.c (pthread_create): New thread struct is generated - by new routine ptw32_new(). - -1999-11-21 Ross Johnson <rpj@special.ise.canberra.edu.au> - - * global.c (ptw32_exception_services): Declare new variable. - - * private.c (ptw32_threadStart): Destroy thread's - cancelLock mutex; make 'catch' and '__except' usageimmune to - redfinitions in pthread.h. - (ptw32_processInitialize): Init new constant ptw32_exception_services. - - * create.c (pthread_create): Initialise thread's cancelLock - mutex. - - * cleanup.c (pthread_pop_cleanup): Make 'catch' and '__except' - usage immune to redfinition s in pthread.h. - - * private.c: Ditto. - - * pthread.h (catch): Redefine 'catch' so that C++ applications - won't catch our internal exceptions. - (__except): ditto for __except. - - * implement.h (ptw32_catch): Define internal version - of 'catch' because 'catch' is redefined by pthread.h. - (__except): ditto for __except. - (struct pthread_t_): Add cancelLock mutex for async cancel - safety. - -1999-11-21 Jason Nye <jnye@nbnet.nb.ca>, Erik Hensema <erik.hensema@group2000.nl> - - * cancel.c (ptw32_cancel_self): New; part of the async - cancellation implementation. - (ptw32_cancel_thread): Ditto; this function is X86 - processor specific. - (pthread_setcancelstate): Add check for pending async - cancel request and cancel the calling thread if - required; add async-cancel safety lock. - (pthread_setcanceltype): Ditto. - -1999-11-13 Erik Hensema <erik.hensema@group2000.nl> - - * configure.in (AC_OUTPUT): Put generated output into GNUmakefile - rather than Makefile. Makefile will become the MSC nmake compatible - version - -1999-11-13 John Bossom (John.Bossom@cognos.com> - - * misc.c (pthread_self): Add a note about GetCurrentThread - returning a pseudo-handle - -1999-11-10 Todd Owen <towen@lucidcalm.dropbear.id.au> - - * dll.c (dllMain): Free kernel32 ASAP. - If TryEnterCriticalSection is not being used, then free - the kernel32.dll handle now, rather than leaving it until - DLL_PROCESS_DETACH. - - Note: this is not a pedantic exercise in freeing unused - resources! It is a work-around for a bug in Windows 95 - (see microsoft knowledge base article, Q187684) which - does Bad Things when FreeLibrary is called within - the DLL_PROCESS_DETACH code, in certain situations. - Since w95 just happens to be a platform which does not - provide TryEnterCriticalSection, the bug will be - effortlessly avoided. - -1999-11-10 Ross Johnson <rpj@ixobrychus.canberra.edu.au> - - * sync.c (pthread_join): Make it a deferred cancelation point. - - * misc.c (pthread_self): Explicitly initialise implicitly - created thread state to default values. - -1999-11-05 Tristan Savatier <tristan@mpegtv.com> - - * pthread.h (winsock.h): Include unconditionally. - (ETIMEDOUT): Change fallback value to that defined by winsock.h. - - * general: Patched for portability to WinCE. The details are - described in the file WinCE-PORT. Follow the instructions - in README.WinCE to make the appropriate changes in config.h. - -1999-10-30 Erik Hensema <erik.hensema@group2000.nl> - - * create.c (pthread_create): Explicitly initialise thread state to - default values. - - * cancel.c (pthread_setcancelstate): Check for NULL 'oldstate' - for compatibility with Solaris pthreads; - (pthread_setcanceltype): ditto: - -1999-10-23 Erik Hensema <erik.hensema@group2000.nl> - - * pthread.h (ctime_r): Fix incorrect argument "_tm" - -1999-10-21 Aurelio Medina <aureliom@crt.com> - - * pthread.h (_POSIX_THREADS): Only define it if it isn't - already defined. Projects may need to define this on - the CC command line under Win32 as it doesn't have unistd.h - -1999-10-17 Ross Johnson <rpj@ixobrychus.canberra.edu.au> - - * rwlock.c (pthread_rwlock_destroy): Add cast to remove compile - warning. - - * condvar.c (pthread_cond_broadcast): Only release semaphores - if there are waiting threads. - -1999-10-15 Lorin Hochstein <lmh@xiphos.ca>, Peter Slacik <Peter.Slacik@tatramed.sk> - - * condvar.c (cond_wait_cleanup): New static cleanup handler for - cond_timedwait; - (cond_timedwait): pthread_cleanup_push args changed; - canceling a thread while it's in pthread_cond_wait - will now decrement the waiters count and cleanup if it's the - last waiter. - -1999-10-15 Graham Dumpleton <Graham.Dumpleton@ra.pad.otc.telstra.com.au> - - * condvar.c (cond_wait_cleanup): the last waiter will now reset the CV's - wasBroadcast flag - -Thu Sep 16 1999 Ross Johnson <rpj@swan.canberra.edu.au> - - * rwlock.c (pthread_rwlock_destroy): Add serialisation. - (_rwlock_check_need_init): Check for detroyed rwlock. - * rwlock.c: Check return codes from _rwlock_check_need_init(); - modify comments; serialise access to rwlock objects during - operations; rename rw_mutex to rw_lock. - * implement.h: Rename rw_mutex to rw_lock. - * mutex.c (pthread_mutex_destroy): Add serialisation. - (_mutex_check_need_init): Check for detroyed mutex. - * condvar.c (pthread_cond_destroy): Add serialisation. - (_cond_check_need_init): Check for detroyed condvar. - * mutex.c: Modify comments. - * condvar.c: Modify comments. - -1999-08-10 Aurelio Medina <aureliom@crt.com> - - * implement.h (pthread_rwlock_t_): Add. - * pthread.h (pthread_rwlock_t): Add. - (PTHREAD_RWLOCK_INITIALIZER): Add. - Add rwlock function prototypes. - * rwlock.c: New module. - * pthread.def: Add new rwlock functions. - * private.c (ptw32_processInitialize): initialise - ptw32_rwlock_test_init_lock critical section. - * global.c (ptw32_rwlock_test_init_lock): Add. - - * mutex.c (pthread_mutex_destroy): Don't free mutex memory - if mutex is PTHREAD_MUTEX_INITIALIZER and has not been - initialised yet. - -1999-08-08 Milan Gardian <mg@tatramed.sk> - - * mutex.c (pthread_mutex_destroy): Free mutex memory. - -1999-08-22 Ross Johnson <rpj@ixobrychus.canberra.edu.au> - - * exit.c (pthread_exit): Fix reference to potentially - uninitialised pointer. - -1999-08-21 Ross Johnson <rpj@ixobrychus.canberra.edu.au> - - * private.c (ptw32_threadStart): Apply fix of 1999-08-19 - this time to C++ and non-trapped C versions. Ommitted to - do this the first time through. - -1999-08-19 Ross Johnson <rpj@ixobrychus.canberra.edu.au> - - * private.c (ptw32_threadStart): Return exit status from - the application thread startup routine. - - Milan Gardian <mg@tatramed.sk> - -1999-08-18 John Bossom <john.Bossom@cognos.com> - - * exit.c (pthread_exit): Put status into pthread_t->exitStatus - * private.c (ptw32_threadStart): Set pthread->exitStatus - on exit of try{} block. - * sync.c (pthread_join): use pthread_exitStatus value if the - thread exit doesn't return a value (for Mingw32 CRTDLL - which uses endthread instead of _endthreadex). - -Tue Aug 17 20:17:58 CDT 1999 Mumit Khan <khan@xraylith.wisc.edu> - - * create.c (pthread_create): Add CRTDLL suppport. - * exit.c (pthread_exit): Likewise. - * private.c (ptw32_threadStart): Likewise. - (ptw32_threadDestroy): Likewise. - * sync.c (pthread_join): Likewise. - * tests/join1.c (main): Warn about partial support for CRTDLL. - -Tue Aug 17 20:00:08 1999 Mumit Khan <khan@xraylith.wisc.edu> - - * Makefile.in (LD): Delete entry point. - * acconfig.h (STDCALL): Delete unused macro. - * configure.in: Remove test for STDCALL. - * config.h.in: Regenerate. - * errno.c (_errno): Fix self type. - * pthread.h (PT_STDCALL): Move from here to - * implement.h (PT_STDCALL): here. - (ptw32_threadStart): Fix prototype. - * private.c (ptw32_threadStart): Likewise. - -1999-08-14 Ross Johnson <rpj@ixobrychus.canberra.edu.au> - - * exit.c (pthread_exit): Don't call pthread_self() but - get thread handle directly from TSD for efficiency. - -1999-08-12 Ross Johnson <rpj@ixobrychus.canberra.edu.au> - - * private.c (ptw32_threadStart): ei[] only declared if _MSC_VER. - - * exit.c (pthread_exit): Check for implicitly created threads - to avoid raising an unhandled exception. - -1999-07-12 Peter Slacik <Peter.Slacik@tatramed.sk> - - * condvar.c (pthread_cond_destroy): Add critical section. - (cond_timedwait): Add critical section; check for timeout - waiting on semaphore. - (pthread_cond_broadcast): Add critical section. - -1999-07-09 Lorin Hochstein <lmh@xiphos.ca>, John Bossom <John.Bossom@Cognos.COM> - - The problem was that cleanup handlers were not executed when - pthread_exit() was called. - - * implement.h (pthread_t_): Add exceptionInformation element for - C++ per-thread exception information. - (general): Define and rename exceptions. - -1999-07-09 Ross Johnson <rpj@ixobrychus.canberra.edu.au> - - * misc.c (CancelableWait): PTW32_EPS_CANCEL (SEH) and - ptw32_exception_cancel (C++) used to identify the exception. - - * cancel.c (pthread_testcancel): PTW32_EPS_CANCEL (SEH) and - ptw32_exception_cancel (C++) used to identify the exception. - - * exit.c (pthread_exit): throw/raise an exception to return to - ptw32_threadStart() to exit the thread. PTW32_EPS_EXIT (SEH) - and ptw32_exception_exit (C++) used to identify the exception. - - * private.c (ptw32_threadStart): Add pthread_exit exception trap; - clean up and exit the thread directly rather than via pthread_exit(). - -Sun May 30 00:25:02 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> - - * semaphore.h (mode_t): Conditionally typedef it. - -Fri May 28 13:33:05 1999 Mark E. Armstrong <avail@pacbell.net> - - * condvar.c (pthread_cond_broadcast): Fix possible memory fault - -Thu May 27 13:08:46 1999 Peter Slacik <Peter.Slacik@tatramed.sk> - - * condvar.c (pthread_cond_broadcast): Fix logic bug - -Thu May 27 13:08:46 1999 Bossom, John <John.Bossom@Cognos.COM> - - * condvar.c (pthread_cond_broadcast): optimise sem_post loop - -Fri May 14 12:13:18 1999 Mike Russo <miker@eai.com> - - * attr.c (pthread_attr_setdetachstate): Fix logic bug - -Sat May 8 09:42:30 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> - - * pthread.def (sem_open): Add. - (sem_close): Add. - (sem_unlink): Add. - (sem_getvalue): Add. - - * FAQ (Question 3): Add. - -Thu Apr 8 01:16:23 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> - - * semaphore.c (sem_open): New function; returns an error (ENOSYS). - (sem_close): ditto. - (sem_unlink): ditto. - (sem_getvalue): ditto. - - * semaphore.h (_POSIX_SEMAPHORES): define. - -Wed Apr 7 14:09:52 1999 Ross Johnson <rpj@swan.canberra.edu.au> - - * errno.c (_REENTRANT || _MT): Invert condition. - - * pthread.h (_errno): Conditionally include prototype. - -Wed Apr 7 09:37:00 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> - - * *.c (comments): Remove individual attributions - these are - documented sufficiently elsewhere. - - * implement.h (pthread.h): Remove extraneous include. - -Sun Apr 4 11:05:57 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> - - * sched.c (sched.h): Include. - - * sched.h: New file for POSIX 1b scheduling. - - * pthread.h: Move opaque structures to implement.h; move sched_* - prototypes out and into sched.h. - - * implement.h: Add opaque structures from pthread.h. - - * sched.c (sched_yield): New function. - - * condvar.c (ptw32_sem_*): Rename to sem_*; except for - ptw32_sem_timedwait which is an private function. - -Sat Apr 3 23:28:00 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> - - * Makefile.in (OBJS): Add errno.o. - -Fri Apr 2 11:08:50 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> - - * implement.h (ptw32_sem_*): Remove prototypes now defined in - semaphore.h. - - * pthread.h (sempahore.h): Include. - - * semaphore.h: New file for POSIX 1b semaphores. - - * semaphore.c (ptw32_sem_timedwait): Moved to private.c. - - * pthread.h (ptw32_sem_t): Change to sem_t. - - * private.c (ptw32_sem_timedwait): Moved from semaphore.c; - set errno on error. - - * pthread.h (pthread_t_): Add per-thread errno element. - -Fri Apr 2 11:08:50 1999 John Bossom <jebossom@cognos.com> - - * semaphore.c (ptw32_sem_*): Change to sem_*; these functions - will be exported from the library; set errno on error. - - * errno.c (_errno): New file. New function. - -Fri Mar 26 14:11:45 1999 Tor Lillqvist <tml@iki.fi> - - * semaphore.c (ptw32_sem_timedwait): Check for negative - milliseconds. - -Wed Mar 24 11:32:07 1999 John Bossom <jebossom@cognos.com> - - * misc.c (CancelableWait): Initialise exceptionInformation[2]. - (pthread_self): Get a real Win32 thread handle for implicit threads. - - * cancel.c (pthread_testcancel): Initialise exceptionInformation[2]. - - * implement.h (SE_INFORMATION): Fix values. - - * private.c (ptw32_threadDestroy): Close the thread handle. - -Fri Mar 19 12:57:27 1999 Ross Johnson <rpj@swan.canberra.edu.au> - - * cancel.c (comments): Update and cleanup. - -Fri Mar 19 09:12:59 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> - - * private.c (ptw32_threadStart): status returns PTHREAD_CANCELED. - - * pthread.h (PTHREAD_CANCELED): defined. - -Tue Mar 16 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> - - * all: Add GNU LGPL and Copyright and Warranty. - -Mon Mar 15 00:20:13 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> - - * condvar.c (pthread_cond_init): fix possible uninitialised use - of cv. - -Sun Mar 14 21:01:59 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> - - * condvar.c (pthread_cond_destroy): don't do full cleanup if - static initialised cv has never been used. - (cond_timedwait): check result of auto-initialisation. - -Thu Mar 11 09:01:48 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> - - * pthread.h (pthread_mutex_t): revert to (pthread_mutex_t *); - define a value to serve as PTHREAD_MUTEX_INITIALIZER. - (pthread_mutex_t_): remove staticinit and valid elements. - (pthread_cond_t): revert to (pthread_cond_t_ *); - define a value to serve as PTHREAD_COND_INITIALIZER. - (pthread_cond_t_): remove staticinit and valid elements. - - * mutex.c (pthread_mutex_t args): adjust indirection of references. - (all functions): check for PTHREAD_MUTEX_INITIALIZER value; - check for NULL (invalid). - - * condvar.c (pthread_cond_t args): adjust indirection of references. - (all functions): check for PTHREAD_COND_INITIALIZER value; - check for NULL (invalid). - -Wed Mar 10 17:18:12 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> - - * misc.c (CancelableWait): Undo changes from Mar 8 and 7. - -Mon Mar 8 11:18:59 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> - - * misc.c (CancelableWait): Ensure cancelEvent handle is the lowest - indexed element in the handles array. Enhance test for abandoned - objects. - - * pthread.h (PTHREAD_MUTEX_INITIALIZER): Trailing elements not - initialised are set to zero by the compiler. This avoids the - problem of initialising the opaque critical section element in it. - (PTHREAD_COND_INITIALIZER): Ditto. - - * semaphore.c (ptw32_sem_timedwait): Check sem == NULL earlier. - -Sun Mar 7 12:31:14 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> - - * condvar.c (pthread_cond_init): set semaphore initial value - to 0, not 1. cond_timedwait was returning signaled immediately. - - * misc.c (CancelableWait): Place the cancel event handle first - in the handle table for WaitForMultipleObjects. This ensures that - the cancel event is recognised and acted apon if both objects - happen to be signaled together. - - * private.c (ptw32_cond_test_init_lock): Initialise and destroy. - - * implement.h (ptw32_cond_test_init_lock): Add extern. - - * global.c (ptw32_cond_test_init_lock): Add declaration. - - * condvar.c (pthread_cond_destroy): check for valid initialised CV; - flag destroyed CVs as invalid. - (pthread_cond_init): pthread_cond_t is no longer just a pointer. - This is because PTHREAD_COND_INITIALIZER needs state info to reside - in pthread_cond_t so that it can initialise on first use. Will work on - making pthread_cond_t (and other objects like it) opaque again, if - possible, later. - (cond_timedwait): add check for statically initialisation of - CV; initialise on first use. - (pthread_cond_signal): check for valid CV. - (pthread_cond_broadcast): check for valid CV. - (_cond_check_need_init): Add. - - * pthread.h (PTHREAD_COND_INITIALIZER): Fix. - (pthread_cond_t): no longer a pointer to pthread_cond_t_. - (pthread_cond_t_): add 'staticinit' and 'valid' elements. - -Sat Mar 6 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> - - * implement.h: Undate comments. - -Sun Feb 21 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> - - * pthread.h (PTHREAD_MUTEX_INITIALIZER): missing braces around - cs element initialiser. - -1999-02-21 Ben Elliston <bje@cygnus.com> - - * pthread.h (pthread_exit): The return type of this function is - void, not int. - - * exit.c (pthread_exit): Do not return 0. - -Sat Feb 20 16:03:30 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> - - * dll.c (DLLMain): Expand TryEnterCriticalSection support test. - - * mutex.c (pthread_mutex_trylock): The check for - ptw32_try_enter_critical_section == NULL should have been - removed long ago. - -Fri Feb 19 16:03:30 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> - - * sync.c (pthread_join): Fix pthread_equal() test. - - * mutex.c (pthread_mutex_trylock): Check mutex != NULL before - using it. - -Thu Feb 18 16:17:30 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> - - * misc.c (pthread_equal): Fix inverted result. - - * Makefile.in: Use libpthread32.a as the name of the DLL export - library instead of pthread.lib. - - * condvar.c (pthread_cond_init): cv could have been used unitialised; - initialise. - - * create.c (pthread_create): parms could have been used unitialised; - initialise. - - * pthread.h (struct pthread_once_t_): Remove redefinition. - -Sat Feb 13 03:03:30 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> - - * pthread.h (struct pthread_once_t_): Replaced. - - * misc.c (pthread_once): Replace with John Bossom's version; - has lighter weight serialisation; fixes problem of not holding - competing threads until after the init_routine completes. - -Thu Feb 11 13:34:14 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> - - * misc.c (CancelableWait): Change C++ exception throw. - - * sync.c (pthread_join): Change FIXME comment - issue resolved. - -Wed Feb 10 12:49:11 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> - - * configure: Various temporary changes. - - Kevin Ruland <Kevin.Ruland@anheuser-busch.com> - - * README: Update. - - * pthread.def (pthread_attr_getstackaddr): uncomment - (pthread_attr_setstackaddr): uncomment - -Fri Feb 5 13:42:30 1999 Ross Johnson <rpj@swan.canberra.edu.au> - - * semaphore.c: Comment format changes. - -Thu Feb 4 10:07:28 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> - - * global.c: Remove ptw32_exception instantiation. - - * cancel.c (pthread_testcancel): Change C++ exception throw. - - * implement.h: Remove extern declaration. - -Wed Feb 3 13:04:44 1999 Ross Johnson <rpj@swan.canberra.edu.au> - - * cleanup.c: Rename ptw32_*_cleanup() to pthread_*_cleanup(). - - * pthread.def: Ditto. - - * pthread.h: Ditto. - - * pthread.def (pthread_cleanup_push): Remove from export list; - the function is defined as a macro under all compilers. - (pthread_cleanup_pop): Ditto. - - * pthread.h: Remove #if defined(). - -Wed Feb 3 10:13:48 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> - - * sync.c (pthread_join): Check for NULL value_ptr arg; - check for detached threads. - -Tue Feb 2 18:07:43 1999 Ross Johnson <rpj@swan.canberra.edu.au> - - * implement.h: Add #include <pthread.h>. - Change sem_t to ptw32_sem_t. - -Tue Feb 2 18:07:43 1999 Kevin Ruland <Kevin.Ruland@anheuser-busch.com> - - * signal.c (pthread_sigmask): Add and modify casts. - Reverse LHS/RHS bitwise assignments. - - * pthread.h: Remove #include <semaphore.h>. - (PTW32_ATTR_VALID): Add cast. - (struct pthread_t_): Add sigmask element. - - * dll.c: Add "extern C" for DLLMain. - (DllMain): Add cast. - - * create.c (pthread_create): Set sigmask in thread. - - * condvar.c: Remove #include. Change sem_* to ptw32_sem_*. - - * attr.c: Changed #include. - - * Makefile.in: Additional targets and changes to build the library - as a DLL. - -Fri Jan 29 11:56:28 1999 Ross Johnson <rpj@swan.canberra.edu.au> - - * Makefile.in (OBJS): Add semaphore.o to list. - - * semaphore.c (ptw32_sem_timedwait): Move from private.c. - Rename sem_* to ptw32_sem_*. - - * pthread.h (pthread_cond_t): Change type of sem_t. - _POSIX_SEMAPHORES no longer defined. - - * semaphore.h: Contents moved to implement.h. - Removed from source tree. - - * implement.h: Add semaphore function prototypes and rename all - functions to prepend 'ptw32_'. They are - now private to the pthreads-win32 implementation. - - * private.c: Change #warning. - Move ptw32_sem_timedwait() to semaphore.c. - - * cleanup.c: Change #warning. - - * misc.c: Remove #include <errno.h> - - * pthread.def: Cleanup CVS merge conflicts. - - * global.c: Ditto. - - * ChangeLog: Ditto. - - * cleanup.c: Ditto. - -Sun Jan 24 01:34:52 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> - - * semaphore.c (sem_wait): Remove second arg to - pthreadCancelableWait() call. - -Sat Jan 23 17:36:40 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> - - * pthread.def: Add new functions to export list. - - * pthread.h (PTHREAD_MUTEX_AUTO_CS_NP): New. - (PTHREAD_MUTEX_FORCE_CS_NP): New. - - * README: Updated. - -Fri Jan 22 14:31:59 1999 Ross Johnson <rpj@swan.canberra.edu.au> - - * Makefile.in (CFLAGS): Remove -fhandle-exceptions. Not needed - with egcs. Add -g for debugging. - - * create.c (pthread_create): Replace __stdcall with PT_STDCALL - macro. This is a hack and must be fixed. - - * misc.c (CancelableWait): Remove redundant statement. - - * mutex.c (pthread_mutexattr_init): Cast calloc return value. - - * misc.c (CancelableWait): Add cast. - (pthread_self): Add cast. - - * exit.c (pthread_exit): Add cast. - - * condvar.c (pthread_condattr_init): Cast calloc return value. - - * cleanup.c: Reorganise conditional compilation. - - * attr.c (pthread_attr_init): Remove unused 'result'. - Cast malloc return value. - - * private.c (ptw32_callUserDestroyRoutines): Redo conditional - compilation. - - * misc.c (CancelableWait): C++ version uses 'throw'. - - * cancel.c (pthread_testcancel): Ditto. - - * implement.h (class ptw32_exception): Define for C++. - - * pthread.h: Fix C, C++, and Win32 SEH condition compilation - mayhem around pthread_cleanup_* defines. C++ version now uses John - Bossom's cleanup handlers. - (pthread_attr_t): Make 'valid' unsigned. - Define '_timeb' as 'timeb' for Ming32. - Define PT_STDCALL as nothing for Mingw32. May be temporary. - - * cancel.c (pthread_testcancel): Cast return value. - -Wed Jan 20 09:31:28 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> - - * pthread.h (pthread_mutexattr_t): Changed to a pointer. - - * mutex.c (pthread_mutex_init): Conditionally create Win32 mutex - - from John Bossom's implementation. - (pthread_mutex_destroy): Conditionally close Win32 mutex - - from John Bossom's implementation. - (pthread_mutexattr_init): Replaced by John Bossom's version. - (pthread_mutexattr_destroy): Ditto. - (pthread_mutexattr_getpshared): New function from John Bossom's - implementation. - (pthread_mutexattr_setpshared): New function from John Bossom's - implementation. - -Tue Jan 19 18:27:42 1999 Ross Johnson <rpj@swan.canberra.edu.au> - - * pthread.h (pthreadCancelableTimedWait): New prototype. - (pthreadCancelableWait): Remove second argument. - - * misc.c (CancelableWait): New static function is - pthreadCancelableWait() renamed. - (pthreadCancelableWait): Now just calls CancelableWait() with - INFINITE timeout. - (pthreadCancelableTimedWait): Just calls CancelableWait() - with passed in timeout. - -Tue Jan 19 18:27:42 1999 Scott Lightner <scott@curriculum.com> - - * private.c (ptw32_sem_timedwait): 'abstime' arg really is - absolute time. Calculate relative time to wait from current - time before passing timeout to new routine - pthreadCancelableTimedWait(). - -Tue Jan 19 10:27:39 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> - - * pthread.h (pthread_mutexattr_setforcecs_np): New prototype. - - * mutex.c (pthread_mutexattr_init): Init 'pshared' and 'forcecs' - attributes to 0. - (pthread_mutexattr_setforcecs_np): New function (not portable). - - * pthread.h (pthread_mutex_t): - Add 'mutex' element. Set to NULL in PTHREAD_MUTEX_INITIALIZER. - The pthread_mutex_*() routines will try to optimise performance - by choosing either mutexes or critical sections as the basis - for pthread mutexes for each indevidual mutex. - (pthread_mutexattr_t_): Add 'forcecs' element. - Some applications may choose to force use of critical sections - if they know that:- - the mutex is PROCESS_PRIVATE and, - either the OS supports TryEnterCriticalSection() or - pthread_mutex_trylock() will never be called on the mutex. - This attribute will be setable via a non-portable routine. - - Note: We don't yet support PROCESS_SHARED mutexes, so the - implementation as it stands will default to Win32 mutexes only if - the OS doesn't support TryEnterCriticalSection. On Win9x, and early - versions of NT 'forcecs' will need to be set in order to get - critical section based mutexes. - -Sun Jan 17 12:01:26 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> - - * pthread.h (PTHREAD_MUTEX_INITIALIZER): Init new 'staticinit' - value to '1' and existing 'valid' value to '1'. - - * global.c (ptw32_mutex_test_init_lock): Add. - - * implement.h (ptw32_mutex_test_init_lock.): Add extern. - - * private.c (ptw32_processInitialize): Init critical section for - global lock used by _mutex_check_need_init(). - (ptw32_processTerminate): Ditto (:s/Init/Destroy/). - - * dll.c (dllMain): Move call to FreeLibrary() so that it is only - called once when the process detaches. - - * mutex.c (_mutex_check_need_init): New static function to test - and init PTHREAD_MUTEX_INITIALIZER mutexes. Provides serialised - access to the internal state of the uninitialised static mutex. - Called from pthread_mutex_trylock() and pthread_mutex_lock() which - do a quick unguarded test to check if _mutex_check_need_init() - needs to be called. This is safe as the test is conservative - and is repeated inside the guarded section of - _mutex_check_need_init(). Thus in all calls except the first - calls to lock static mutexes, the additional overhead to lock any - mutex is a single memory fetch and test for zero. - - * pthread.h (pthread_mutex_t_): Add 'staticinit' member. Mutexes - initialised by PTHREAD_MUTEX_INITIALIZER aren't really initialised - until the first attempt to lock it. Using the 'valid' - flag (which flags the mutex as destroyed or not) to record this - information would be messy. It is possible for a statically - initialised mutex such as this to be destroyed before ever being - used. - - * mutex.c (pthread_mutex_trylock): Call _mutex_check_need_init() - to test/init PTHREAD_MUTEX_INITIALIZER mutexes. - (pthread_mutex_lock): Ditto. - (pthread_mutex_unlock): Add check to ensure we don't try to unlock - an unitialised static mutex. - (pthread_mutex_destroy): Add check to ensure we don't try to delete - a critical section that we never created. Allows us to destroy - a static mutex that has never been locked (and hence initialised). - (pthread_mutex_init): Set 'staticinit' flag to 0 for the new mutex. - -Sun Jan 17 12:01:26 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> - - * private.c (ptw32_sem_timedwait): Move from semaphore.c. - - * semaphore.c : Remove redundant #includes. - (ptw32_sem_timedwait): Move to private.c. - (sem_wait): Add missing abstime arg to pthreadCancelableWait() call. - -Fri Jan 15 23:38:05 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> - - * condvar.c (cond_timedwait): Remove comment. - -Fri Jan 15 15:41:28 1999 Ross Johnson <rpj@swan.canberra.edu.au> - - * pthread.h: Add new 'abstime' arg to pthreadCancelableWait() - prototype. - - * condvar.c (cond_timedwait): New generalised function called by - both pthread_cond_wait() and pthread_cond_timedwait(). This is - essentially pthread_cond_wait() renamed and modified to add the - 'abstime' arg and call the new ptw32_sem_timedwait() instead of - sem_wait(). - (pthread_cond_wait): Now just calls the internal static - function cond_timedwait() with an INFINITE wait. - (pthread_cond_timedwait): Now implemented. Calls the internal - static function cond_timedwait(). - - * implement.h (ptw32_sem_timedwait): New internal function - prototype. - - * misc.c (pthreadCancelableWait): Added new 'abstime' argument - to allow shorter than INFINITE wait. - - * semaphore.c (ptw32_sem_timedwait): New function for internal - use. This is essentially sem_wait() modified to add the - 'abstime' arg and call the modified (see above) - pthreadCancelableWait(). - -Thu Jan 14 14:27:13 1999 Ross Johnson <rpj@swan.canberra.edu.au> - - * cleanup.c: Correct _cplusplus to __cplusplus wherever used. - - * Makefile.in: Add CC=g++ and add -fhandle-exceptions to CFLAGS. - The derived Makefile will compile all units of the package as C++ - so that those which include try/catch exception handling should work - properly. The package should compile ok if CC=gcc, however, exception - handling will not be included and thus thread cancellation, for - example, will not work. - - * cleanup.c (ptw32_pop_cleanup): Add #warning to compile this - file as C++ if using a cygwin32 environment. Perhaps the whole package - should be compiled using g++ under cygwin. - - * private.c (ptw32_threadStart): Change #error directive - into #warning and bracket for __CYGWIN__ and derivative compilers. - -Wed Jan 13 09:34:52 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> - - * build.bat: Delete old binaries before compiling/linking. - -Tue Jan 12 09:58:38 1999 Tor Lillqvist <tml@iki.fi> - - * dll.c: The Microsoft compiler pragmas probably are more - appropriately protected by _MSC_VER than by _WIN32. - - * pthread.h: Define ETIMEDOUT. This should be returned by - pthread_cond_timedwait which is not implemented yet as of - snapshot-1999-01-04-1305. It was implemented in the older version. - The Microsoft compiler pragmas probably are more appropriately - protected by _MSC_VER than by _WIN32. - - * pthread.def: pthread_mutex_destroy was missing from the def file - - * condvar.c (pthread_cond_broadcast): Ensure we only wait on threads - if there were any waiting on the condition. - I think pthread_cond_broadcast should do the WaitForSingleObject - only if cv->waiters > 0? Otherwise it seems to hang, at least in the - testg thread program from glib. - -Tue Jan 12 09:58:38 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> - - * condvar.c (pthread_cond_timedwait): Fix function description - comments. - - * semaphore.c (sem_post): Correct typo in comment. - -Mon Jan 11 20:33:19 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> - - * pthread.h: Re-arrange conditional compile of pthread_cleanup-* - macros. - - * cleanup.c (ptw32_push_cleanup): Provide conditional - compile of cleanup->prev. - -1999-01-11 Tor Lillqvist <tml@iki.fi> - - * condvar.c (pthread_cond_init): Invert logic when testing the - return value from calloc(). - -Sat Jan 9 14:32:08 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> - - * implement.h: Compile-time switch for CYGWIN derived environments - to use CreateThread instead of _beginthreadex. Ditto for ExitThread. - Patch provided by Anders Norlander <anorland@hem2.passagen.se>. - -Tue Jan 5 16:33:04 1999 Ross Johnson <rpj@swan.canberra.edu.au> - - * cleanup.c (ptw32_pop_cleanup): Add C++ version of __try/__except - block. Move trailing "}" out of #ifdef _WIN32 block left there by - (rpj's) mistake. - - * private.c: Remove #include <errno.h> which is included by pthread.h. - -1998-12-11 Ben Elliston <bje@toilet.to.cygnus.com> - - * README: Update info about subscribing to the mailing list. - -Mon Jan 4 11:23:40 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> - - * all: No code changes, just cleanup. - - remove #if 0 /* Pre Bossom */ enclosed code. - - Remove some redundant #includes. - * pthread.h: Update implemented/unimplemented routines list. - * Tag the bossom merge branch getting ready to merge back to main - trunk. - -Tue Dec 29 13:11:16 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au> - - * implement.h: Move the following struct definitions to pthread.h: - pthread_t_, pthread_attr_t_, pthread_mutex_t_, pthread_mutex_t_, - pthread_mutexattr_t_, pthread_key_t_, pthread_cond_t_, - pthread_condattr_t_, pthread_once_t_. - - * pthread.h: Add "_" prefix to pthread_push_cleanup and - pthread_pop_cleanup internal routines, and associated struct and - typedefs. - - * buildlib.bat: Add compile command for semaphore.c - - * pthread.def: Comment out pthread_atfork routine name. - Now unimplemented. - - * tsd.c (pthread_setspecific): Rename tkAssocCreate to - ptw32_tkAssocCreate. - (pthread_key_delete): Rename tkAssocDestroy to - ptw32_tkAssocDestroy. - - * sync.c (pthread_join): Rename threadDestroy to ptw32_threadDestroy - - * sched.c (is_attr): attr is now **attr (was *attr), so add extra - NULL pointer test. - (pthread_attr_setschedparam): Increase redirection for attr which is - now a **. - (pthread_attr_getschedparam): Ditto. - (pthread_setschedparam): Change thread validation and rename "thread" - Win32 thread Handle element name to match John Bossom's version. - (pthread_getschedparam): Ditto. - - * private.c (ptw32_threadDestroy): Rename call to - callUserDestroyRoutines() as ptw32_callUserDestroyRoutines() - - * misc.c: Add #include "implement.h". - - * dll.c: Remove defined(KLUDGE) wrapped code. - - * fork.c: Remove redefinition of ENOMEM. - Remove pthread_atfork() and fork() with #if 0/#endif. - - * create.c (pthread_create): Rename threadStart and threadDestroy calls - to ptw32_threadStart and ptw32_threadDestroy. - - * implement.h: Rename "detachedstate" to "detachstate". - - * attr.c: Rename "detachedstate" to "detachstate". - -Mon Dec 28 09:54:39 1998 John Bossom - - * semaphore.c: Initial version. - * semaphore.h: Initial version. - -Mon Dec 28 09:54:39 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au> - - * pthread.h (pthread_attr_t_): Change to *pthread_attr_t. - -Mon Dec 28 09:54:39 1998 John Bossom, Ben Elliston - - * attr.c (pthread_attr_setstacksize): Merge with John's version. - (pthread_attr_getstacksize): Merge with John's version. - (pthread_attr_setstackaddr): Merge with John's version. - (pthread_attr_getstackaddr): Merge with John's version. - (pthread_attr_init): Merge with John's version. - (pthread_attr_destroy): Merge with John's version. - (pthread_attr_getdetachstate): Merge with John's version. - (pthread_attr_setdetachstate): Merge with John's version. - (is_attr): attr is now **attr (was *attr), so add extra NULL pointer - test. - -Mon Dec 28 09:54:39 1998 Ross Johnson - - * implement.h (pthread_attr_t_): Add and rename elements in JEB's - version to correspond to original, so that it can be used with - original attr routines. - - * pthread.h: Add #endif at end which was truncated in merging. - -Sun Dec 20 14:51:58 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au> - - * misc.c (pthreadCancelableWait): New function by John Bossom. Non-standard - but provides a hook that can be used to implement cancellation points in - applications that use this library. - - * pthread.h (pthread_cleanup_pop): C++ (non-WIN32) version uses - try/catch to emulate John Bossom's WIN32 __try/__finally behaviour. - In the WIN32 version __finally block, add a test for AbnormalTermination otherwise - cleanup is only run if the cleanup_pop execute arg is non-zero. Cancellation - should cause the cleanup to run irrespective of the execute arg. - - * condvar.c (pthread_condattr_init): Replaced by John Bossom's version. - (pthread_condattr_destroy): Replaced by John Bossom's version. - (pthread_condattr_getpshared): Replaced by John Bossom's version. - (pthread_condattr_setpshared): Replaced by John Bossom's version. - (pthread_cond_init): Replaced by John Bossom's version. - Fix comment (refered to mutex rather than condition variable). - (pthread_cond_destroy): Replaced by John Bossom's version. - (pthread_cond_wait): Replaced by John Bossom's version. - (pthread_cond_timedwait): Replaced by John Bossom's version. - (pthread_cond_signal): Replaced by John Bossom's version. - (pthread_cond_broadcast): Replaced by John Bossom's version. - -Thu Dec 17 19:10:46 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au> - - * tsd.c (pthread_key_create): Replaced by John Bossom's version. - (pthread_key_delete): Replaced by John Bossom's version. - (pthread_setspecific): Replaced by John Bossom's version. - (pthread_getspecific): Replaced by John Bossom's version. - -Mon Dec 7 09:44:40 1998 John Bossom - - * cancel.c (pthread_setcancelstate): Replaced. - (pthread_setcanceltype): Replaced. - (pthread_testcancel): Replaced. - (pthread_cancel): Replaced. - - * exit.c (pthread_exit): Replaced. - - * misc.c (pthread_self): Replaced. - (pthread_equal): Replaced. - - * sync.c (pthread_detach): Replaced. - (pthread_join): Replaced. - - * create.c (pthread_create): Replaced. - - * private.c (ptw32_processInitialize): New. - (ptw32_processTerminate): New. - (ptw32_threadStart): New. - (ptw32_threadDestroy): New. - (ptw32_cleanupStack): New. - (ptw32_tkAssocCreate): New. - (ptw32_tkAssocDestroy): New. - (ptw32_callUserDestroyRoutines): New. - - * implement.h: Added non-API structures and declarations. - - * dll.c (PthreadsEntryPoint): Cast return value of GetProcAddress - to resolve compile warning from MSVC. - - * dll.c (DLLmain): Replaced. - * dll.c (PthreadsEntryPoint): - Re-applied Anders Norlander's patch:- - Initialize ptw32_try_enter_critical_section at startup - and release kernel32 handle when DLL is being unloaded. - -Sun Dec 6 21:54:35 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au> - - * buildlib.bat: Fix args to CL when building the .DLL - - * cleanup.c (ptw32_destructor_run_all): Fix TSD key management. - This is a tidy-up before TSD and Thread management is completely - replaced by John Bossom's code. - - * tsd.c (pthread_key_create): Fix TSD key management. - - * global.c (ptw32_key_virgin_next): Initialise. - - * build.bat: New DOS script to compile and link a pthreads app - using Microsoft's CL compiler linker. - * buildlib.bat: New DOS script to compile all the object files - and create pthread.lib and pthread.dll using Microsoft's CL - compiler linker. - -1998-12-05 Anders Norlander <anorland@hem2.passagen.se> - - * implement.h (ptw32_try_enter_critical_section): New extern - * dll.c (ptw32_try_enter_critical_section): New pointer to - TryEnterCriticalSection if it exists; otherwise NULL. - * dll.c (PthreadsEntryPoint): - Initialize ptw32_try_enter_critical_section at startup - and release kernel32 handle when DLL is being unloaded. - * mutex.c (pthread_mutex_trylock): Replaced check for NT with - a check if ptw32_try_enter_critical_section is valid - pointer to a function. Call ptw32_try_enter_critical_section - instead of TryEnterCriticalSection to avoid errors on Win95. - -Thu Dec 3 13:32:00 1998 Ross Johnson <rpj@ise.canberra.edu.au> - - * README: Correct cygwin32 compatibility statement. - -Sun Nov 15 21:24:06 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au> - - * cleanup.c (ptw32_destructor_run_all): Declare missing void * arg. - Fixup CVS merge conflicts. - -1998-10-30 Ben Elliston <bje@cygnus.com> - - * condvar.c (cond_wait): Fix semantic error. Test for equality - instead of making an assignment. - -Fri Oct 30 15:15:50 1998 Ross Johnson <rpj@swan.canberra.edu.au> - - * cleanup.c (ptw32_handler_push): Fixed bug appending new - handler to list reported by Peter Slacik - <Peter.Slacik@leibinger.freinet.de>. - (new_thread): Rename poorly named local variable to - "new_handler". - -Sat Oct 24 18:34:59 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au> - - * global.c: Add TSD key management array and index declarations. - - * implement.h: Ditto for externs. - -Fri Oct 23 00:08:09 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au> - - * implement.h (PTW32_TSD_KEY_REUSE): Add enum. - - * private.c (ptw32_delete_thread): Add call to - ptw32_destructor_run_all() to clean up the threads keys. - - * cleanup.c (ptw32_destructor_run_all): Check for no more dirty - keys to run destructors on. Assume that the destructor call always - succeeds and set the key value to NULL. - -Thu Oct 22 21:44:44 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au> - - * tsd.c (pthread_setspecific): Add key management code. - (pthread_key_create): Ditto. - (pthread_key_delete): Ditto. - - * implement.h (struct ptw32_tsd_key): Add status member. - - * tsd.c: Add description of pthread_key_delete() from the - standard as a comment. - -Fri Oct 16 17:38:47 1998 Ross Johnson <rpj@swan.canberra.edu.au> - - * cleanup.c (ptw32_destructor_run_all): Fix and improve - stepping through the key table. - -Thu Oct 15 14:05:01 1998 Ross Johnson <rpj@swan.canberra.edu.au> - - * private.c (ptw32_new_thread): Remove init of destructorstack. - No longer an element of pthread_t. - - * tsd.c (pthread_setspecific): Fix type declaration and cast. - (pthread_getspecific): Ditto. - (pthread_getspecific): Change error return value to NULL if key - is not in use. - -Thu Oct 15 11:53:21 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au> - - * global.c (ptw32_tsd_key_table): Fix declaration. - - * implement.h(ptw32_TSD_keys_TlsIndex): Add missing extern. - (ptw32_tsd_mutex): Ditto. - - * create.c (ptw32_start_call): Fix "keys" array declaration. - Add comment. - - * tsd.c (pthread_setspecific): Fix type declaration and cast. - (pthread_getspecific): Ditto. - - * cleanup.c (ptw32_destructor_run_all): Declare missing loop - counter. - -Wed Oct 14 21:09:24 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au> - - * private.c (ptw32_new_thread): Increment ptw32_threads_count. - (ptw32_delete_thread): Decrement ptw32_threads_count. - Remove some comments. - - * exit.c (ptw32_exit): : Fix two pthread_mutex_lock() calls that - should have been pthread_mutex_unlock() calls. - (ptw32_vacuum): Remove call to ptw32_destructor_pop_all(). - - * create.c (pthread_create): Fix two pthread_mutex_lock() calls that - should have been pthread_mutex_unlock() calls. - - * global.c (ptw32_tsd_mutex): Add mutex for TSD operations. - - * tsd.c (pthread_key_create): Add critical section. - (pthread_setspecific): Ditto. - (pthread_getspecific): Ditto. - (pthread_key_delete): Ditto. - - * sync.c (pthread_join): Fix two pthread_mutex_lock() calls that - should have been pthread_mutex_unlock() calls. - -Mon Oct 12 00:00:44 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au> - - * implement.h (ptw32_tsd_key_table): New. - - * create.c (ptw32_start_call): Initialise per-thread TSD keys - to NULL. - - * misc.c (pthread_once): Correct typo in comment. - - * implement.h (ptw32_destructor_push): Remove. - (ptw32_destructor_pop): Remove. - (ptw32_destructor_run_all): Rename from ptw32_destructor_pop_all. - (PTW32_TSD_KEY_DELETED): Add enum. - (PTW32_TSD_KEY_INUSE): Add enum. - - * cleanup.c (ptw32_destructor_push): Remove. - (ptw32_destructor_pop): Remove. - (ptw32_destructor_run_all): Totally revamped TSD. - - * dll.c (ptw32_TSD_keys_TlsIndex): Initialise. - - * tsd.c (pthread_setspecific): Totally revamped TSD. - (pthread_getspecific): Ditto. - (pthread_create): Ditto. - (pthread_delete): Ditto. - -Sun Oct 11 22:44:55 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au> - - * global.c (ptw32_tsd_key_table): Add new global. - - * implement.h (ptw32_tsd_key_t and struct ptw32_tsd_key): - Add. - (struct _pthread): Remove destructorstack. - - * cleanup.c (ptw32_destructor_run_all): Rename from - ptw32_destructor_pop_all. The key destructor stack was made - global rather than per-thread. No longer removes destructor nodes - from the stack. Comments updated. - -1998-10-06 Ben Elliston <bje@cygnus.com> - - * condvar.c (cond_wait): Use POSIX, not Win32 mutex calls. - (pthread_cond_broadcast): Likewise. - (pthread_cond_signal): Likewise. - -1998-10-05 Ben Elliston <bje@cygnus.com> - - * pthread.def: Update. Some functions aren't available yet, others - are macros in <pthread.h>. - - * tests/join.c: Remove; useless. - -Mon Oct 5 14:25:08 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au> - - * pthread.def: New file for building the DLL. - -1998-10-05 Ben Elliston <bje@cygnus.com> - - * misc.c (pthread_equal): Correct inverted logic bug. - (pthread_once): Use the POSIX mutex primitives, not Win32. Remove - irrelevant FIXME comment. - - * global.c (PTHREAD_MUTEX_INITIALIZER): Move to pthread.h. - - * pthread.h (PTHREAD_MUTEX_INITIALIZER): Define. - (pthread_mutex_t): Reimplement as a struct containing a valid - flag. If the flag is ever down upon entry to a mutex operation, - we call pthread_mutex_create() to initialise the object. This - fixes the problem of how to handle statically initialised objects - that can't call InitializeCriticalSection() due to their context. - (PTHREAD_ONCE_INIT): Define. - - * mutex.c (pthread_mutex_init): Set valid flag. - (pthread_mutex_destroy): Clear valid flag. - (pthread_mutex_lock): Check and handle the valid flag. - (pthread_mutex_unlock): Likewise. - (pthread_mutex_trylock): Likewise. - - * tests/mutex3.c: New file; test for the static initialisation - macro. Passes. - - * tests/create1.c: New file; test pthread_create(). Passes. - - * tests/equal.c: Poor test; remove. - - * tests/equal1.c New file; test pthread_equal(). Passes. - - * tests/once1.c: New file; test for pthread_once(). Passes. - - * tests/self.c: Remove; rename to self1.c. - - * tests/self1.c: This is the old self.c. - - * tests/self2.c: New file. Test pthread_self() with a single - thread. Passes. - - * tests/self3.c: New file. Test pthread_self() with a couple of - threads to ensure their thread IDs differ. Passes. - -1998-10-04 Ben Elliston <bje@cygnus.com> - - * tests/mutex2.c: Test pthread_mutex_trylock(). Passes. - - * tests/mutex1.c: New basic test for mutex functions (it passes). - (main): Eliminate warning. - - * configure.in: Test for __stdcall, not _stdcall. Typo. - - * configure: Regenerate. - - * attr.c (pthread_attr_setstackaddr): Remove FIXME comment. Win32 - does know about ENOSYS after all. - (pthread_attr_setstackaddr): Likewise. - -1998-10-03 Ben Elliston <bje@cygnus.com> - - * configure.in: Test for the `_stdcall' keyword. Define `STDCALL' - to `_stdcall' if we have it, null otherwise. - - * configure: Regenerate. - - * acconfig.h (STDCALL): New define. - - * config.h.in: Regenerate. - - * create.c (ptw32_start_call): Add STDCALL prefix. - - * mutex.c (pthread_mutex_init): Correct function signature. - - * attr.c (pthread_attr_init): Only zero out the `sigmask' member - if we have the sigset_t type. - - * pthread.h: No need to include <unistd.h>. It doesn't even exist - on Win32! Again, an artifact of cross-compilation. - (pthread_sigmask): Only provide if we have the sigset_t type. - - * process.h: Remove. This was a stand-in before we started doing - native compilation under Win32. - - * pthread.h (pthread_mutex_init): Make `attr' argument const. - -1998-10-02 Ben Elliston <bje@cygnus.com> - - * COPYING: Remove. - - * COPYING.LIB: Add. This library is under the LGPL. - -1998-09-13 Ben Elliston <bje@cygnus.com> - - * configure.in: Test for required system features. - - * configure: Generate. - - * acconfig.h: New file. - - * config.h.in: Generate. - - * Makefile.in: Renamed from Makefile. - - * COPYING: Import from a recent GNU package. - - * config.guess: Likewise. - - * config.sub: Likewise. - - * install-sh: Likewise. - - * config.h: Remove. - - * Makefile: Likewise. - -1998-09-12 Ben Elliston <bje@cygnus.com> - - * windows.h: No longer needed; remove. - - * windows.c: Likewise. - -Sat Sep 12 20:09:24 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au> - - * windows.h: Remove error number definitions. These are in <errno.h> - - * tsd.c: Add comment explaining rationale for not building - POSIX TSD on top of Win32 TLS. - -1998-09-12 Ben Elliston <bje@cygnus.com> - - * {most}.c: Include <errno.h> to get POSIX error values. - - * signal.c (pthread_sigmask): Only provide if HAVE_SIGSET_T is - defined. - - * config.h: #undef features, don't #define them. This will be - generated by autoconf very soon. - -1998-08-11 Ben Elliston <bje@cygnus.com> - - * Makefile (LIB): Define. - (clean): Define target. - (all): Build a library not just the object files. - - * pthread.h: Provide a definition for struct timespec if we don't - already have one. - - * windows.c (TlsGetValue): Bug fix. - -Thu Aug 6 15:19:22 1998 Ross Johnson <rpj@swan.canberra.edu.au> - - * misc.c (pthread_once): Fix arg 1 of EnterCriticalSection() - and LeaveCriticalSection() calls to pass address-of lock. - - * fork.c (pthread_atfork): Typecast (void (*)(void *)) funcptr - in each ptw32_handler_push() call. - - * exit.c (ptw32_exit): Fix attr arg in - pthread_attr_getdetachstate() call. - - * private.c (ptw32_new_thread): Typecast (HANDLE) NULL. - (ptw32_delete_thread): Ditto. - - * implement.h: (PTW32_MAX_THREADS): Add define. This keeps - changing in an attempt to make thread administration data types - opaque and cleanup DLL startup. - - * dll.c (PthreadsEntryPoint): - (ptw32_virgins): Remove malloc() and free() calls. - (ptw32_reuse): Ditto. - (ptw32_win32handle_map): Ditto. - (ptw32_threads_mutex_table): Ditto. - - * global.c (_POSIX_THREAD_THREADS_MAX): Initialise with - PTW32_MAX_THREADS. - (ptw32_virgins): Ditto. - (ptw32_reuse): Ditto. - (ptw32_win32handle_map): Ditto. - (ptw32_threads_mutex_table): Ditto. - - * create.c (pthread_create): Typecast (HANDLE) NULL. - Typecast (unsigned (*)(void *)) start_routine. - - * condvar.c (pthread_cond_init): Add address-of operator & to - arg 1 of pthread_mutex_init() call. - (pthread_cond_destroy): Add address-of operator & to - arg 1 of pthread_mutex_destroy() call. - - * cleanup.c (ptw32_destructor_pop_all): Add (int) cast to - pthread_getspecific() arg. - (ptw32_destructor_pop): Add (void *) cast to "if" conditional. - (ptw32_destructor_push): Add (void *) cast to - ptw32_handler_push() "key" arg. - (malloc.h): Add include. - - * implement.h (ptw32_destructor_pop): Add prototype. - - * tsd.c (implement.h): Add include. - - * sync.c (pthread_join): Remove target_thread_mutex and it's - initialisation. Rename getdetachedstate to getdetachstate. - Remove unused variable "exitcode". - (pthread_detach): Remove target_thread_mutex and it's - initialisation. Rename getdetachedstate to getdetachstate. - Rename setdetachedstate to setdetachstate. - - * signal.c (pthread_sigmask): Rename SIG_SET to SIG_SETMASK. - Cast "set" to (long *) in assignment to passify compiler warning. - Add address-of operator & to thread->attr.sigmask in memcpy() call - and assignment. - (pthread_sigmask): Add address-of operator & to thread->attr.sigmask - in memcpy() call and assignment. - - * windows.h (THREAD_PRIORITY_ERROR_RETURN): Add. - (THREAD_PRIORITY_LOWEST): Add. - (THREAD_PRIORITY_HIGHEST): Add. - - * sched.c (is_attr): Add function. - (implement.h): Add include. - (pthread_setschedparam): Rename all instances of "sched_policy" - to "sched_priority". - (pthread_getschedparam): Ditto. - -Tue Aug 4 16:57:58 1998 Ross Johnson <rpj@swan.canberra.edu.au> - - * private.c (ptw32_delete_thread): Fix typo. Add missing ';'. - - * global.c (ptw32_virgins): Change types from pointer to - array pointer. - (ptw32_reuse): Ditto. - (ptw32_win32handle_map): Ditto. - (ptw32_threads_mutex_table): Ditto. - - * implement.h(ptw32_virgins): Change types from pointer to - array pointer. - (ptw32_reuse): Ditto. - (ptw32_win32handle_map): Ditto. - (ptw32_threads_mutex_table): Ditto. - - * private.c (ptw32_delete_thread): Fix "entry" should be "thread". - - * misc.c (pthread_self): Add extern for ptw32_threadID_TlsIndex. - - * global.c: Add comment. - - * misc.c (pthread_once): Fix member -> dereferences. - Change ptw32_once_flag to once_control->flag in "if" test. - -Tue Aug 4 00:09:30 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au> - - * implement.h(ptw32_virgins): Add extern. - (ptw32_virgin_next): Ditto. - (ptw32_reuse): Ditto. - (ptw32_reuse_top): Ditto. - (ptw32_win32handle_map): Ditto. - (ptw32_threads_mutex_table): Ditto. - - * global.c (ptw32_virgins): Changed from array to pointer. - Storage allocation for the array moved into dll.c. - (ptw32_reuse): Ditto. - (ptw32_win32handle_map): Ditto. - (ptw32_threads_mutex_table): Ditto. - - * dll.c (PthreadsEntryPoint): Set up thread admin storage when - DLL is loaded. - - * fork.c (pthread_atfork): Fix function pointer arg to all - ptw32_handler_push() calls. Change "arg" arg to NULL in child push. - - * exit.c: Add windows.h and process.h includes. - (ptw32_exit): Add local detachstate declaration. - (ptw32_exit): Fix incorrect name for pthread_attr_getdetachstate(). - - * pthread.h (_POSIX_THREAD_ATTR_STACKSIZE): Move from global.c - (_POSIX_THREAD_ATTR_STACKADDR): Ditto. - - * create.c (pthread_create): Fix #if should be #ifdef. - (ptw32_start_call): Remove usused variables. - - * process.h: Create. - - * windows.h: Move _beginthreadex and _endthreadex into - process.h - -Mon Aug 3 21:19:57 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au> - - * condvar.c (pthread_cond_init): Add NULL attr to - pthread_mutex_init() call - default attributes will be used. - (cond_wait): Fix typo. - (cond_wait): Fix typo - cv was ev. - (pthread_cond_broadcast): Fix two identical typos. - - * cleanup.c (ptw32_destructor_pop_all): Remove _ prefix from - PTHREAD_DESTRUCTOR_ITERATIONS. - - * pthread.h: Move _POSIX_* values into posix.h - - * pthread.h: Fix typo in pthread_mutex_init() prototype. - - * attr.c (pthread_attr_init): Fix error in priority member init. - - * windows.h (THREAD_PRIORITY_NORMAL): Add. - - * pthread.h (sched_param): Add missing ';' to struct definition. - - * attr.c (pthread_attr_init): Remove obsolete pthread_attr_t - member initialisation - cancelstate, canceltype, cancel_pending. - (is_attr): Make arg "attr" a const. - - * implement.h (PTW32_HANDLER_POP_LIFO): Remove definition. - (PTW32_HANDLER_POP_FIFO): Ditto. - (PTW32_VALID): Add missing newline escape (\). - (ptw32_handler_node): Make element "next" a pointer. - -1998-08-02 Ben Elliston <bje@cygnus.com> - - * windows.h: Remove duplicate TlsSetValue() prototype. Add - TlsGetValue() prototype. - (FALSE): Define. - (TRUE): Likewise. - Add forgotten errno values. Guard against multiple #includes. - - * windows.c: New file. Implement stubs for Win32 functions. - - * Makefile (SRCS): Remove. Not explicitly needed. - (CFLAGS): Add -Wall for all warnings with GCC. - -Sun Aug 2 19:03:42 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au> - - * config.h: Create. This is a temporary stand-in for autoconf yet - to be done. - (HAVE_SIGNAL_H): Add. - - * pthread.h: Minor rearrangement for temporary config.h. - -Fri Jul 31 14:00:29 1998 Ross Johnson <rpj@swan.canberra.edu.au> - - * cleanup.c (ptw32_destructor_pop): Implement. Removes - destructors associated with a key without executing them. - (ptw32_destructor_pop_all): Add FIXME comment. - - * tsd.c (pthread_key_delete): Add call to ptw32_destructor_pop(). - -Fri Jul 31 00:05:45 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au> - - * tsd.c (pthread_key_create): Update to properly associate - the destructor routine with the key. - (pthread_key_delete): Add FIXME comment. - - * exit.c (ptw32_vacuum): Add call to - ptw32_destructor_pop_all(). - - * implement.h (ptw32_handler_pop_all): Add prototype. - (ptw32_destructor_pop_all): Ditto. - - * cleanup.c (ptw32_destructor_push): Implement. This is just a - call to ptw32_handler_push(). - (ptw32_destructor_pop_all): Implement. This is significantly - different to ptw32_handler_pop_all(). - - * Makefile (SRCS): Create. Preliminary. - - * windows.h: Create. Contains Win32 definitions for compile - testing. This is just a standin for the real one. - - * pthread.h (SIG_UNBLOCK): Fix typo. Was SIG_BLOCK. - (windows.h): Add include. Required for CRITICAL_SECTION. - (pthread_cond_t): Move enum declaration outside of struct - definition. - (unistd.h): Add include - may be temporary. - - * condvar.c (windows.h): Add include. - - * implement.h (PTW32_THIS): Remove - no longer required. - (PTW32_STACK): Use pthread_self() instead of PTW32_THIS. - -Thu Jul 30 23:12:45 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au> - - * implement.h: Remove ptw32_find_entry() prototype. - - * private.c: Extend comments. - Remove ptw32_find_entry() - no longer needed. - - * create.c (ptw32_start_call): Add call to TlsSetValue() to - store the thread ID. - - * dll.c (PthreadsEntryPoint): Implement. This is called - whenever a process loads the DLL. Used to initialise thread - local storage. - - * implement.h: Add ptw32_threadID_TlsIndex. - Add ()s around PTW32_VALID expression. - - * misc.c (pthread_self): Re-implement using Win32 TLS to store - the threads own ID. - -Wed Jul 29 11:39:03 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au> - - * private.c: Corrections in comments. - (ptw32_new_thread): Alter "if" flow to be more natural. - - * cleanup.c (ptw32_handler_push): Same as below. - - * create.c (pthread_create): Same as below. - - * private.c (ptw32_new_thread): Rename "new" to "new_thread". - Since when has a C programmer been required to know C++? - -Tue Jul 28 14:04:29 1998 Ross Johnson <rpj@swan.canberra.edu.au> - - * implement.h: Add PTW32_VALID macro. - - * sync.c (pthread_join): Modify to use the new thread - type and ptw32_delete_thread(). Rename "target" to "thread". - Remove extra local variable "target". - (pthread_detach): Ditto. - - * signal.c (pthread_sigmask): Move init of "us" out of inner block. - Fix instance of "this" should have been "us". Rename "us" to "thread". - - * sched.c (pthread_setschedparam): Modify to use the new thread - type. - (pthread_getschedparam): Ditto. - - * private.c (ptw32_find_thread): Fix return type and arg. - - * implement.h: Remove PTW32_YES and PTW32_NO. - (ptw32_new_thread): Add prototype. - (ptw32_find_thread): Ditto. - (ptw32_delete_thread): Ditto. - (ptw32_new_thread_entry): Remove prototype. - (ptw32_find_thread_entry): Ditto. - (ptw32_delete_thread_entry): Ditto. - ( PTW32_NEW, PTW32_INUSE, PTW32_EXITED, PTW32_REUSE): - Add. - - - * create.c (pthread_create): Minor rename "us" to "new" (I need - these cues but it doesn't stop me coming out with some major bugs - at times). - Load start_routine and arg into the thread so the wrapper can - call it. - - * exit.c (pthread_exit): Fix pthread_this should be pthread_self. - - * cancel.c (pthread_setcancelstate): Change - ptw32_threads_thread_t * to pthread_t and init with - pthread_this(). - (pthread_setcanceltype): Ditto. - - * exit.c (ptw32_exit): Add new pthread_t arg. - Rename ptw32_delete_thread_entry to ptw32_delete_thread. - Rename "us" to "thread". - (pthread_exit): Call ptw32_exit with added thread arg. - - * create.c (ptw32_start_call): Insert missing ")". - Add "us" arg to ptw32_exit() call. - (pthread_create): Modify to use new thread allocation scheme. - - * private.c: Added detailed explanation of the new thread - allocation scheme. - (ptw32_new_thread): Totally rewritten to use - new thread allocation scheme. - (ptw32_delete_thread): Ditto. - (ptw32_find_thread): Obsolete. - -Mon Jul 27 17:46:37 1998 Ross Johnson <rpj@swan.canberra.edu.au> - - * create.c (pthread_create): Start of rewrite. Not completed yet. - - * private.c (ptw32_new_thread_entry): Start of rewrite. Not - complete. - - * implement.h (ptw32_threads_thread): Rename, remove thread - member, add win32handle and ptstatus members. - (ptw32_t): Add. - - * pthread.h: pthread_t is no longer mapped directly to a Win32 - HANDLE type. This is so we can let the Win32 thread terminate and - reuse the HANDLE while pthreads holds it's own thread ID until - the last waiting join exits. - -Mon Jul 27 00:20:37 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au> - - * private.c (ptw32_delete_thread_entry): Destroy the thread - entry attribute object before deleting the thread entry itself. - - * attr.c (pthread_attr_init): Initialise cancel_pending = FALSE. - (pthread_attr_setdetachstate): Rename "detached" to "detachedstate". - (pthread_attr_getdetachstate): Ditto. - - * exit.c (ptw32_exit): Fix incorrect check for detachedstate. - - * implement.h (ptw32_call_t): Remove env member. - -Sun Jul 26 13:06:12 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au> - - * implement.h (ptw32_new_thread_entry): Fix prototype. - (ptw32_find_thread_entry): Ditto. - (ptw32_delete_thread_entry): Ditto. - (ptw32_exit): Add prototype. - - * exit.c (ptw32_exit): New function. Called from pthread_exit() - and ptw32_start_call() to exit the thread. It allows an extra - argument which is the return code passed to _endthreadex(). - (ptw32_exit): Move thread entry delete call from ptw32_vacuum() - into here. Add more explanation of thread entry deletion. - (ptw32_exit): Clarify comment. - - * create.c (ptw32_start_call): Change pthread_exit() call to - ptw32_exit() call. - - * exit.c (ptw32_vacuum): Add thread entry deletion code - moved from ptw32_start_call(). See next item. - (pthread_exit): Remove longjmp(). Add mutex lock around thread table - manipulation code. This routine now calls _enthreadex(). - - * create.c (ptw32_start_call): Remove setjmp() call and move - cleanup code out. Call pthread_exit(NULL) to terminate the thread. - -1998-07-26 Ben Elliston <bje@cygnus.com> - - * tsd.c (pthread_getspecific): Update comments. - - * mutex.c (pthread_mutexattr_setpshared): Not supported; remove. - (pthread_mutexattr_getpshared): Likewise. - - * pthread.h (pthread_mutexattr_setpshared): Remove prototype. - (pthread_mutexattr_getpshared): Likewise. - -Sun Jul 26 00:09:59 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au> - - * sync.c: Rename all instances of ptw32_count_mutex to - ptw32_table_mutex. - - * implement.h: Rename ptw32_count_mutex to - ptw32_table_mutex. - - * global.c: Rename ptw32_count_mutex to - ptw32_table_mutex. - - * create.c (pthread_create): Add critical sections. - (ptw32_start_call): Rename ptw32_count_mutex to - ptw32_table_mutex. - - * cancel.c (pthread_setcancelstate): Fix indirection bug and rename - "this" to "us". - - * signal.c (pthread_sigmask): Rename "this" to "us" and fix some - minor syntax errors. Declare "us" and initialise it. - - * sync.c (pthread_detach): Rename "this" to "target". - - * pthread.h: Converting PTHREAD_* defines to alias the (const int) - values in global.c. - - * global.c: Started converting PTHREAD_* defines to (const int) as - a part of making the eventual pthreads DLL binary compatible - through version changes. - - * condvar.c (cond_wait): Add cancelation point. This applies the - point to both pthread_cond_wait() and pthread_cond_timedwait(). - - * exit.c (pthread_exit): Rename "this" to "us". - - * implement.h: Add comment. - - * sync.c (pthread_join): I've satisfied myself that pthread_detach() - does set the detached attribute in the thread entry attributes - to PTHREAD_CREATE_DETACHED. "if" conditions were changed to test - that attribute instead of a separate flag. - - * create.c (pthread_create): Rename "this" to "us". - (pthread_create): cancelstate and canceltype are not attributes - so the copy to thread entry attribute storage was removed. - Only the thread itself can change it's cancelstate or canceltype, - ie. the thread must exist already. - - * private.c (ptw32_delete_thread_entry): Mutex locks removed. - Mutexes must be applied at the caller level. - (ptw32_new_thread_entry): Ditto. - (ptw32_new_thread_entry): Init cancelstate, canceltype, and - cancel_pending to default values. - (ptw32_new_thread_entry): Rename "this" to "new". - (ptw32_find_thread_entry): Rename "this" to "entry". - (ptw32_delete_thread_entry): Rename "thread_entry" to "entry". - - * create.c (ptw32_start_call): Mutexes changed to - ptw32_count_mutex. All access to the threads table entries is - under the one mutex. Otherwise chaos reigns. - -Sat Jul 25 23:16:51 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au> - - * implement.h (ptw32_threads_thread): Move cancelstate and - canceltype members out of pthread_attr_t into here. - - * fork.c (fork): Add comment. - -1998-07-25 Ben Elliston <bje@cygnus.com> - - * fork.c (fork): Autoconfiscate. - -Sat Jul 25 00:00:13 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au> - - * create.c (ptw32_start_call): Set thread priority. Ensure our - thread entry is removed from the thread table but only if - pthread_detach() was called and there are no waiting joins. - (pthread_create): Set detach flag in thread entry if the - thread is created PTHREAD_CREATE_DETACHED. - - * pthread.h (pthread_attr_t): Rename member "detachedstate". - - * attr.c (pthread_attr_init): Rename attr members. - - * exit.c (pthread_exit): Fix indirection mistake. - - * implement.h (PTW32_THREADS_TABLE_INDEX): Add. - - * exit.c (ptw32_vacuum): Fix incorrect args to - ptw32_handler_pop_all() calls. - Make thread entry removal conditional. - - * sync.c (pthread_join): Add multiple join and async detach handling. - - * implement.h (PTW32_THREADS_TABLE_INDEX): Add. - - * global.c (ptw32_threads_mutex_table): Add. - - * implement.h (ptw32_once_flag): Remove. - (ptw32_once_lock): Ditto. - (ptw32_threads_mutex_table): Add. - - * global.c (ptw32_once_flag): Remove. - (ptw32_once_lock): Ditto. - - * sync.c (pthread_join): Fix tests involving new return value - from ptw32_find_thread_entry(). - (pthread_detach): Ditto. - - * private.c (ptw32_find_thread_entry): Failure return code - changed from -1 to NULL. - -Fri Jul 24 23:09:33 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au> - - * create.c (pthread_create): Change . to -> in sigmask memcpy() args. - - * pthread.h: (pthread_cancel): Add function prototype. - (pthread_testcancel): Ditto. - -1998-07-24 Ben Elliston <bje@cygnus.com> - - * pthread.h (pthread_condattr_t): Rename dummy structure member. - (pthread_mutexattr_t): Likewise. - -Fri Jul 24 21:13:55 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au> - - * cancel.c (pthread_cancel): Implement. - (pthread_testcancel): Implement. - - * exit.c (pthread_exit): Add comment explaining the longjmp(). - - * implement.h (ptw32_threads_thread_t): New member cancelthread. - (PTW32_YES): Define. - (PTW32_NO): Define. - (RND_SIZEOF): Remove. - - * create.c (pthread_create): Rename cancelability to cancelstate. - - * pthread.h (pthread_attr_t): Rename cancelability to cancelstate. - (PTHREAD_CANCELED): Define. - -1998-07-24 Ben Elliston <bje@cygnus.com> - - * pthread.h (SIG_BLOCK): Define if not already defined. - (SIG_UNBLOCK): Likewise. - (SIG_SETMASK): Likewise. - (pthread_attr_t): Add signal mask member. - (pthread_sigmask): Add function prototype. - - * signal.c (pthread_sigmask): Implement. - - * create.c: #include <string.h> to get a prototype for memcpy(). - (pthread_create): New threads inherit their creator's signal - mask. Copy the signal mask to the new thread structure if we know - about signals. - -Fri Jul 24 16:33:17 1998 Ross Johnson <rpj@swan.canberra.edu.au> - - * fork.c (pthread_atfork): Add all the necessary push calls. - Local implementation semantics: - If we get an ENOMEM at any time then ALL handlers - (including those from previous pthread_atfork() calls) will be - popped off each of the three atfork stacks before we return. - (fork): Add all the necessary pop calls. Add the thread cancellation - and join calls to the child fork. - Add #includes. - - * implement.h: (ptw32_handler_push): Fix return type and stack arg - type in prototype. - (ptw32_handler_pop): Fix stack arg type in prototype. - (ptw32_handler_pop_all): Fix stack arg type in prototype. - - * cleanup.c (ptw32_handler_push): Change return type to int and - return ENOMEM if malloc() fails. - - * sync.c (pthread_detach): Use equality test, not assignment. - - * create.c (ptw32_start_call): Add call to Win32 CloseHandle() - if thread is detached. - -1998-07-24 Ben Elliston <bje@cygnus.com> - - * sync.c (pthread_detach): Close the Win32 thread handle to - emulate detached (or daemon) threads. - -Fri Jul 24 03:00:25 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au> - - * sync.c (pthread_join): Save valueptr arg in joinvalueptr for - pthread_exit() to use. - - * private.c (ptw32_new_thread_entry): Initialise joinvalueptr to - NULL. - - * create.c (ptw32_start_call): Rewrite to facilitate joins. - pthread_exit() will do a longjmp() back to here. Does appropriate - cleanup and exit/return from the thread. - (pthread_create): _beginthreadex() now passes a pointer to our - thread table entry instead of just the call member of that entry. - - * implement.h (ptw32_threads_thread): New member - void ** joinvalueptr. - (ptw32_call_t): New member jmpbuf env. - - * exit.c (pthread_exit): Major rewrite to handle joins and handing - value pointer to joining thread. Uses longjmp() back to - ptw32_start_call(). - - * create.c (pthread_create): Ensure values of new attribute members - are copied to the thread attribute object. - - * attr.c (pthread_attr_destroy): Fix merge conflicts. - (pthread_attr_getdetachstate): Fix merge conflicts. - (pthread_attr_setdetachstate): Fix merge conflicts. - - * pthread.h: Fix merge conflicts. - - * sync.c (pthread_join): Fix merge conflicts. - -Fri Jul 24 00:21:21 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au> - - * sync.c (pthread_join): Add check for valid and joinable - thread. - (pthread_detach): Implement. After checking for a valid and joinable - thread, it's still a no-op. - - * private.c (ptw32_find_thread_entry): Bug prevented returning - an error value in some cases. - - * attr.c (pthread_attr_setdetachedstate): Implement. - (pthread_attr_getdetachedstate): Implement. - - * implement.h: Move more hidden definitions into here from - pthread.h. - -1998-07-24 Ben Elliston <bje@cygnus.com> - - * pthread.h (PTHREAD_CREATE_JOINABLE): Define. - (PTHREAD_CREATE_DETACHED): Likewise. - (pthread_attr_t): Add new structure member `detached'. - (pthread_attr_getdetachstate): Add function prototype. - (pthread_attr_setdetachstate): Likewise. - - * sync.c (pthread_join): Return if the target thread is detached. - - * attr.c (pthread_attr_init): Initialise cancelability and - canceltype structure members. - (pthread_attr_getdetachstate): Implement. - (pthread_attr_setdetachstate): Likewise. - - * implement.h (PTW32_CANCEL_DEFAULTS): Remove. Bit fields - proved to be too cumbersome. Set the defaults in attr.c using the - public PTHREAD_CANCEL_* constants. - - * cancel.c: New file. - - * pthread.h (sched_param): Define this type. - (pthread_attr_getschedparam): Add function prototype. - (pthread_attr_setschedparam): Likewise. - (pthread_setcancelstate): Likewise. - (pthread_setcanceltype): Likewise. - (sched_get_priority_min): Likewise. - (sched_get_priority_max): Likewise. - (pthread_mutexattr_setprotocol): Remove; not supported. - (pthread_mutexattr_getprotocol): Likewise. - (pthread_mutexattr_setprioceiling): Likewise. - (pthread_mutexattr_getprioceiling): Likewise. - (pthread_attr_t): Add canceltype member. Update comments. - (SCHED_OTHER): Define this scheduling policy constant. - (SCHED_FIFO): Likewise. - (SCHED_RR): Likewise. - (SCHED_MIN): Define the lowest possible value for this constant. - (SCHED_MAX): Likewise, the maximum possible value. - (PTHREAD_CANCEL_ASYNCHRONOUS): Redefine. - (PTHREAD_CANCEL_DEFERRED): Likewise. - - * sched.c: New file. - (pthread_setschedparam): Implement. - (pthread_getschedparam): Implement. - (sched_get_priority_max): Validate policy argument. - (sched_get_priority_min): Likewise. - - * mutex.c (pthread_mutexattr_setprotocol): Remove; not supported. - (pthread_mutexattr_getprotocol): Likewise. - (pthread_mutexattr_setprioceiling): Likewise. - (pthread_mutexattr_getprioceiling): Likewise. - -Fri Jul 24 00:21:21 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au> - - * create.c (pthread_create): Arg to ptw32_new_thread_entry() - changed. See next entry. Move mutex locks out. Changes made yesterday - and today allow us to start the new thread running rather than - temporarily suspended. - - * private.c (ptw32_new_thread_entry): ptw32_thread_table - was changed back to a table of thread structures rather than pointers. - As such we're trading storage for increaded speed. This routine - was modified to work with the new table. Mutex lock put in around - global data accesses. - (ptw32_find_thread_entry): Ditto - (ptw32_delete_thread_entry): Ditto - -Thu Jul 23 23:25:30 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au> - - * global.c: New. Global data objects declared here. These moved from - pthread.h. - - * pthread.h: Move implementation hidden definitions into - implement.h. - - * implement.h: Move implementation hidden definitions from - pthread.h. Add constants to index into the different handler stacks. - - * cleanup.c (ptw32_handler_push): Simplify args. Restructure. - (ptw32_handler_pop): Simplify args. Restructure. - (ptw32_handler_pop_all): Simplify args. Restructure. - -Wed Jul 22 00:16:22 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au> - - * attr.c, implement.h, pthread.h, ChangeLog: Resolve CVS merge - conflicts. - - * private.c (ptw32_find_thread_entry): Changes to return type - to support leaner ptw32_threads_table[] which now only stores - ptw32_thread_thread_t *. - (ptw32_new_thread_entry): Internal changes. - (ptw32_delete_thread_entry): Internal changes to avoid contention. - Calling routines changed accordingly. - - * pthread.h: Modified cleanup macros to use new generic push and pop. - Added destructor and atfork stacks to ptw32_threads_thread_t. - - * cleanup.c (ptw32_handler_push, ptw32_handler_pop, - ptw32_handler_pop_all): Renamed cleanup push and pop routines - and made generic to handle destructors and atfork handlers as - well. - - * create.c (ptw32_start_call): New function is a wrapper for - all new threads. It allows us to do some cleanup when the thread - returns, ie. that is otherwise only done if the thread is cancelled. - - * exit.c (ptw32_vacuum): New function contains code from - pthread_exit() that we need in the new ptw32_start_call() - as well. - - * implement.h: Various additions and minor changes. - - * pthread.h: Various additions and minor changes. - Change cleanup handler macros to use generic handler push and pop - functions. - - * attr.c: Minor mods to all functions. - (is_attr): Implemented missing function. - - * create.c (pthread_create): More clean up. - - * private.c (ptw32_find_thread_entry): Implement. - (ptw32_delete_thread_entry): Implement. - (ptw32_new_thread_entry): Implement. - These functions manipulate the implementations internal thread - table and are part of general code cleanup and modularisation. - They replace ptw32_getthreadindex() which was removed. - - * exit.c (pthread_exit): Changed to use the new code above. - - * pthread.h: Add cancelability constants. Update comments. - -1998-07-22 Ben Elliston <bje@cygnus.com> - - * attr.c (pthread_setstacksize): Update test of attr argument. - (pthread_getstacksize): Likewise. - (pthread_setstackaddr): Likewise. - (pthread_getstackaddr): Likewise. - (pthread_attr_init): No need to allocate any storage. - (pthread_attr_destroy): No need to free any storage. - - * mutex.c (is_attr): Not likely to be needed; remove. - (remove_attr): Likewise. - (insert_attr): Likewise. - - * implement.h (ptw32_mutexattr_t): Moved to a public definition - in pthread.h. There was little gain in hiding these details. - (ptw32_condattr_t): Likewise. - (ptw32_attr_t): Likewise. - - * pthread.h (pthread_atfork): Add function prototype. - (pthread_attr_t): Moved here from implement.h. - - * fork.c (pthread_atfork): Preliminary implementation. - (ptw32_fork): Likewise. - -Wed Jul 22 00:16:22 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au> - - * cleanup.c (ptw32_cleanup_push): Implement. - (ptw32_cleanup_pop): Implement. - (ptw32_do_cancellation): Implement. - These are private to the implementation. The real cleanup functions - are macros. See below. - - * pthread.h (pthread_cleanup_push): Implement as a macro. - (pthread_cleanup_pop): Implement as a macro. - Because these are macros which start and end a block, the POSIX scoping - requirement is observed. See the comment in the file. - - * exit.c (pthread_exit): Refine the code. - - * create.c (pthread_create): Code cleanup. - - * implement.h (RND_SIZEOF): Add RND_SIZEOF(T) to round sizeof(T) - up to multiple of DWORD. - Add function prototypes. - - * private.c (ptw32_getthreadindex): "*thread" should have been - "thread". Detect empty slot fail condition. - -1998-07-20 Ben Elliston <bje@cygnus.com> - - * misc.c (pthread_once): Implement. Don't use a per-application - flag and mutex--make `pthread_once_t' contain these elements in - their structure. The earlier version had incorrect semantics. - - * pthread.h (ptw32_once_flag): Add new variable. Remove. - (ptw32_once_lock): Add new mutex lock to ensure integrity of - access to ptw32_once_flag. Remove. - (pthread_once): Add function prototype. - (pthread_once_t): Define this type. - -Mon Jul 20 02:31:05 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au> - - * private.c (ptw32_getthreadindex): Implement. - - * pthread.h: Add application static data dependent on - _PTHREADS_BUILD_DLL define. This is needed to avoid allocating - non-sharable static data within the pthread DLL. - - * implement.h: Add ptw32_cleanup_stack_t, ptw32_cleanup_node_t - and PTW32_HASH_INDEX. - - * exit.c (pthread_exit): Begin work on cleanup and de-allocate - thread-private storage. - - * create.c (pthread_create): Add thread to thread table. - Keep a thread-private copy of the attributes with default values - filled in when necessary. Same for the cleanup stack. Make - pthread_create C run-time library friendly by using _beginthreadex() - instead of CreateThread(). Fix error returns. - -Sun Jul 19 16:26:23 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au> - - * implement.h: Rename pthreads_thread_count to ptw32_threads_count. - Create ptw32_threads_thread_t struct to keep thread specific data. - - * create.c: Rename pthreads_thread_count to ptw32_threads_count. - (pthread_create): Handle errors from CreateThread(). - -1998-07-19 Ben Elliston <bje@cygnus.com> - - * condvar.c (pthread_cond_wait): Generalise. Moved from here .. - (cond_wait): To here. - (pthread_cond_timedwait): Implement; use generalised cond_wait(). - - * pthread.h (pthread_key_t): Define this type. - (pthread_key_create): Add function prototype. - (pthread_setspecific): Likewise. - (pthread_getspecific): Likwise. - (pthread_key_delete): Likewise. - - * tsd.c (pthread_key_create): Implement. - (pthread_setspecific): Likewise. - (pthread_getspecific): Likewise. - (pthread_key_delete): Likewise. - - * mutex.c (pthread_mutex_trylock): Return ENOSYS if this function - is called on a Win32 platform which is not Windows NT. - -1998-07-18 Ben Elliston <bje@cygnus.com> - - * condvar.c (pthread_condattr_init): Do not attempt to malloc any - storage; none is needed now that condattr_t is an empty struct. - (pthread_condattr_destory): Likewise; do not free storage. - (pthread_condattr_setpshared): No longer supported; return ENOSYS. - (pthread_condattr_getpshared): Likewise. - (pthread_cond_init): Implement with help from Douglas Schmidt. - Remember to initialise the cv's internal mutex. - (pthread_cond_wait): Likewise. - (pthread_cond_signal): Likewise. - (pthread_cond_broadcast): Likewise. - (pthread_cond_timedwait): Preliminary implementation, but I need - to see some API documentation for `WaitForMultipleObject'. - (pthread_destory): Implement. - - * pthread.h (pthread_cond_init): Add function protoype. - (pthread_cond_broadcast): Likewise. - (pthread_cond_signal): Likewise. - (pthread_cond_timedwait): Likewise. - (pthread_cond_wait): Likewise. - (pthread_cond_destroy): Likewise. - (pthread_cond_t): Define this type. Fix for u_int. Do not assume - that the mutex contained withing the pthread_cond_t structure will - be a critical section. Use our new POSIX type! - - * implement.h (ptw32_condattr_t): Remove shared attribute. - -1998-07-17 Ben Elliston <bje@cygnus.com> - - * pthread.h (PTHREADS_PROCESS_PRIVATE): Remove. - (PTHREAD_PROCESS_SHARED): Likewise. No support for mutexes shared - across processes for now. - (pthread_mutex_t): Use a Win32 CRITICAL_SECTION type for better - performance. - - * implement.h (ptw32_mutexattr_t): Remove shared attribute. - - * mutex.c (pthread_mutexattr_setpshared): This optional function - is no longer supported, since we want to implement POSIX mutex - variables using the much more efficient Win32 critical section - primitives. Critical section objects in Win32 cannot be shared - between processes. - (pthread_mutexattr_getpshared): Likewise. - (pthread_mutexattr_init): No need to malloc any storage; the - attributes structure is now empty. - (pthread_mutexattr_destroy): This is now a nop. - (pthread_mutex_init): Use InitializeCriticalSection(). - (pthread_mutex_destroy): Use DeleteCriticalSection(). - (pthread_mutex_lock): Use EnterCriticalSection(). - (pthread_mutex_trylock): Use TryEnterCriticalSection(). This is - not supported by Windows 9x, but trylock is a hack anyway, IMHO. - (pthread_mutex_unlock): Use LeaveCriticalSection(). - -1998-07-14 Ben Elliston <bje@cygnus.com> - - * attr.c (pthread_attr_setstacksize): Implement. - (pthread_attr_getstacksize): Likewise. - (pthread_attr_setstackaddr): Likewise. - (pthread_attr_getstackaddr): Likewise. - (pthread_attr_init): Likewise. - (pthread_attr_destroy): Likewise. - - * condvar.c (pthread_condattr_init): Add `_cond' to function name. - - * mutex.c (pthread_mutex_lock): Add `_mutex' to function name. - (pthread_mutex_trylock): Likewise. - (pthread_mutex_unlock): Likewise. - - * pthread.h (pthread_condattr_setpshared): Fix typo. - (pthread_attr_init): Add function prototype. - (pthread_attr_destroy): Likewise. - (pthread_attr_setstacksize): Likewise. - (pthread_attr_getstacksize): Likewise. - (pthread_attr_setstackaddr): Likewise. - (pthread_attr_getstackaddr): Likewise. - -Mon Jul 13 01:09:55 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au> - - * implement.h: Wrap in #ifndef _IMPLEMENT_H - - * create.c (pthread_create): Map stacksize attr to Win32. - - * mutex.c: Include implement.h - -1998-07-13 Ben Elliston <bje@cygnus.com> - - * condvar.c (pthread_condattr_init): Implement. - (pthread_condattr_destroy): Likewise. - (pthread_condattr_setpshared): Likewise. - (pthread_condattr_getpshared): Likewise. - - * implement.h (PTHREAD_THREADS_MAX): Remove trailing semicolon. - (PTHREAD_STACK_MIN): Specify; needs confirming. - (ptw32_attr_t): Define this type. - (ptw32_condattr_t): Likewise. - - * pthread.h (pthread_mutex_t): Define this type. - (pthread_condattr_t): Likewise. - (pthread_mutex_destroy): Add function prototype. - (pthread_lock): Likewise. - (pthread_trylock): Likewise. - (pthread_unlock): Likewise. - (pthread_condattr_init): Likewise. - (pthread_condattr_destroy): Likewise. - (pthread_condattr_setpshared): Likewise. - (pthread_condattr_getpshared): Likewise. - - * mutex.c (pthread_mutex_init): Implement. - (pthread_mutex_destroy): Likewise. - (pthread_lock): Likewise. - (pthread_trylock): Likewise. - (pthread_unlock): Likewise. - -1998-07-12 Ben Elliston <bje@cygnus.com> - - * implement.h (ptw32_mutexattr_t): Define this implementation - internal type. Application programmers only see a mutex attribute - object as a void pointer. - - * pthread.h (pthread_mutexattr_t): Define this type. - (pthread_mutexattr_init): Add function prototype. - (pthread_mutexattr_destroy): Likewise. - (pthread_mutexattr_setpshared): Likewise. - (pthread_mutexattr_getpshared): Likewise. - (pthread_mutexattr_setprotocol): Likewise. - (pthread_mutexattr_getprotocol): Likewise. - (pthread_mutexattr_setprioceiling): Likewise. - (pthread_mutexattr_getprioceiling): Likewise. - (PTHREAD_PROCESS_PRIVATE): Define. - (PTHREAD_PROCESS_SHARED): Define. - - * mutex.c (pthread_mutexattr_init): Implement. - (pthread_mutexattr_destroy): Implement. - (pthread_mutexattr_setprotocol): Implement. - (pthread_mutexattr_getprotocol): Likewise. - (pthread_mutexattr_setprioceiling): Likewise. - (pthread_mutexattr_getprioceiling): Likewise. - (pthread_mutexattr_setpshared): Likewise. - (pthread_mutexattr_getpshared): Likewise. - (insert_attr): New function; very preliminary implementation! - (is_attr): Likewise. - (remove_attr): Likewise. - -Sat Jul 11 14:48:54 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au> - - * implement.h: Preliminary implementation specific defines. - - * create.c (pthread_create): Preliminary implementation. - -1998-07-11 Ben Elliston <bje@cygnus.com> - - * sync.c (pthread_join): Implement. - - * misc.c (pthread_equal): Likewise. - - * pthread.h (pthread_join): Add function prototype. - (pthread_equal): Likewise. - -1998-07-10 Ben Elliston <bje@cygnus.com> - - * misc.c (pthread_self): Implement. - - * exit.c (pthread_exit): Implement. - - * pthread.h (pthread_exit): Add function prototype. - (pthread_self): Likewise. - (pthread_t): Define this type. - -1998-07-09 Ben Elliston <bje@cygnus.com> - - * create.c (pthread_create): A dummy stub right now. - - * pthread.h (pthread_create): Add function prototype. +2003-08-13 Ross Johnson <rpj@ise.canberra.edu.au>
+
+ * pthread_getschedparam.c (pthread_getschedparam): An invalid thread ID
+ parameter was returning an incorrect error value; now uses a more exhaustive
+ check for validity.
+
+ * pthread_setschedparam.c (pthread_setschedparam): Likewise.
+
+ * pthread_join.c (pthread_join): Now uses a more exhaustive
+ check for validity.
+
+ * pthread_detach.c (pthread_detach): Likewise.
+
+ * pthread_cancel.c (pthread_cancel): Likewise.
+
+ * ptw32_threadDestroy.c (ptw32_threadDestroy): pthread_t structs are
+ never freed - push them onto a stack for reuse.
+
+ * ptw32_new.c (ptw32_new): Check for reusable pthread_t before dynamically
+ allocating new memory for the struct.
+
+ * pthread_kill.c (pthread_kill): New file; new routine; takes only a zero
+ signal arg so that applications can check the thread arg for validity; checks
+ that the underlying Win32 thread HANDLE is valid.
+
+ * pthread.h (pthread_kill): Add prototype.
+
+ * ptw32_reuse.c (ptw32_threadReusePop): New file; new routine; pop a
+ pthread_t off the reuse stack. pthread_t_ structs that have been destroyed, i.e.
+ have exited detached or have been joined, are cleaned up and put onto a reuse
+ stack. Consequently, thread IDs are no longer freed once calloced. The library
+ will attempt to get a struct off this stack before asking the system to alloc
+ new memory when creating threads. The stack is guarded by a global mutex.
+ (ptw32_threadReusePush): New routine; push a pthread_t onto the reuse stack.
+
+ * implement.h (ptw32_threadReusePush): Add new prototype.
+ (ptw32_threadReusePop): Likewise.
+ (pthread_t): Add new element.
+
+ * ptw32_processTerminate.c (ptw32_processTerminate): Delete the thread
+ reuse lock; free all thread ID structs on the thread reuse stack.
+
+ * ptw32_processInitialize.c (ptw32_processInitialize): Initialise the
+ thread reuse lock.
+
+2003-07-19 Ross Johnson <rpj@ise.canberra.edu.au>
+
+ * GNUmakefile: modified to work under MsysDTK environment.
+ * pthread_spin_lock.c (pthread_spin_lock): Check for NULL arg.
+ * pthread_spin_unlock.c (pthread_spin_unlock): Likewise.
+ * pthread_spin_trylock.c (pthread_spin_trylock): Likewise;
+ fix incorrect pointer value if lock is dynamically initialised by
+ this function.
+ * sem_init.c (sem_init): Initialise sem_t value to quell compiler warning.
+ * sem_destroy.c (sem_destroy): Likewise.
+ * ptw32_threadStart.c (non-MSVC code sections): Include <exception> rather
+ than old-style <new.h>; fix all std:: namespace entities such as
+ std::terminate_handler instances and associated methods.
+ * ptw32_callUserDestroyRoutines.c (non-MSVC code sections): Likewise.
+
+2003-06-24 Piet van Bruggen <pietvb@newbridges.nl>
+
+ * pthread_spin_destroy.c (pthread_spin_destroy): Was not freeing the
+ spinlock struct.
+
+2003-06-22 Nicolas Barry <boozai@yahoo.com>
+
+ * pthread_mutex_destroy.c (pthread_mutex_destroy): When called
+ with a recursive mutex that was locked by the current thread, the
+ function was failing with a success return code.
+
+2003-05-15 Steven Reddie <Steven.Reddie@ca.com>
+
+ * pthread_win32_attach_detach_np.c (pthread_win32_process_detach_np):
+ NULLify ptw32_selfThreadKey after the thread is destroyed, otherwise
+ destructors calling pthreads routines might resurrect it again, creating
+ memory leaks. Call the underlying Win32 Tls routine directly rather than
+ pthread_setspecific().
+ (pthread_win32_thread_detach_np): Likewise.
+
+2003-05-14 Viv <vcotirlea@hotmail.com>
+
+ * pthread.dsp: Change /MT compile flag to /MD.
+
+2003-03-04 Alexander Terekhov <TEREKHOV@de.ibm.com>
+
+ * pthread_mutex_timedlock.c (pthread_mutex_timedlock): Fix failure to
+ set ownership of mutex on second grab after abstime timeout.
+ - bug reported by Robert Strycek <strycek@posam.sk>
+
+2002-12-17 Thomas Pfaff <tpfaff@gmx.net>
+
+ * pthread_mutex_lock.c (ptw32_semwait): New static routine to provide
+ a non-cancelable sem_wait() function. This is consistent with the
+ way that pthread_mutex_timedlock.c does it.
+ (pthread_mutex_lock): Use ptw32_semwait() instead of sem_wait().
+
+2002-12-11 Thomas Pfaff <tpfaff@gmx.net>
+
+ * pthread_mutex_trylock.c: Should return EBUSY rather than EDEADLK.
+ * pthread_mutex_destroy.c: Remove redundant ownership test (the
+ trylock call does this for us); do not destroy a recursively locked
+ mutex.
+
+2002-09-20 Michael Johnson <michaelj@maine.rr.com>
+
+ * pthread_cond_destroy.c (pthread_cond_destroy):
+ When two different threads exist, and one is attempting to
+ destroy a condition variable while the other is attempting to
+ initialize a condition variable that was created with
+ PTHREAD_COND_INITIALIZER, a deadlock can occur. Shrink
+ the ptw32_cond_list_lock critical section to fix it.
+
+2002-07-31 Ross Johnson <rpj@special.ise.canberra.edu.au>
+
+ * ptw32_threadStart.c (ptw32_threadStart): Thread cancelLock
+ destruction moved to ptw32_threadDestroy().
+
+ * ptw32_threadDestroy.c (ptw32_threadDestroy): Destroy
+ the thread's cancelLock. Moved here from ptw32_threadStart.c
+ to cleanup implicit threads as well.
+
+2002-07-30 Alexander Terekhov <TEREKHOV@de.ibm.com>
+
+ * pthread_cond_wait.c (ptw32_cond_wait_cleanup):
+ Remove code designed to avoid/prevent spurious wakeup
+ problems. It is believed that the sem_timedwait() call
+ is consuming a CV signal that it shouldn't and this is
+ breaking the avoidance logic.
+
+2002-07-30 Ross Johnson <rpj@ise.canberra.edu.au>
+
+ * sem_timedwait.c (sem_timedwait): Tighten checks for
+ unreasonable abstime values - that would result in
+ unexpected timeout values.
+
+ * w32_CancelableWait.c (ptw32_cancelable_wait):
+ Tighten up return value checking and add comments.
+
+
+2002-06-08 Ross Johnson <rpj@special.ise.canberra.edu.au>
+
+ * sem_getvalue.c (sem_getvalue): Now returns a value for the
+ NEED_SEM version (i.e. earlier versions of WinCE).
+
+
+2002-06-04 Rob Fanner <rfanner@stonethree.com>
+
+ * sem_getvalue.c (sem_getvalue): The Johnson M. Hart
+ approach didn't work - we are forced to take an
+ intrusive approach. We try to decrement the sema
+ and then immediately release it again to get the
+ value. There is a small probability that this may
+ block other threads, but only momentarily.
+
+2002-06-03 Ross Johnson <rpj@ise.canberra.edu.au>
+
+ * sem_init.c (sem_init): Initialise Win32 semaphores
+ to _POSIX_SEM_VALUE_MAX (which this implementation
+ defines in pthread.h) so that sem_getvalue() can use
+ the trick described in the comments in sem_getvalue().
+ * pthread.h (_POSIX_SEM_VALUE_MAX): Defined.
+ (_POSIX_SEM_NSEMS_MAX): Defined - not used but may be
+ useful for source code portability.
+
+2002-06-03 Rob Fanner <rfanner@stonethree.com>
+
+ * sem_getvalue.c (sem_getvalue): Did not work on NT.
+ Use approach suggested by Johnson M. Hart in his book
+ "Win32 System Programming".
+
+2002-02-28 Ross Johnson <rpj@setup1.ise.canberra.edu.au>
+
+ * errno.c: Compiler directive was incorrectly including code.
+ * pthread.h: Conditionally added some #defines from config.h
+ needed when not building the library. e.g. NEED_ERRNO, NEED_SEM.
+ (PTW32_DLLPORT): Now only defined if _DLL defined.
+ (_errno): Compiler directive was incorrectly including prototype.
+ * sched.h: Conditionally added some #defines from config.h
+ needed when not building the library.
+ * semaphore.h: Replace an instance of NEED_SEM that should
+ have been NEED_ERRNO. This change currently has nil effect.
+
+ * GNUmakefile: Correct some recent changes.
+
+ * Makefile: Add rule to generate pre-processor output.
+
+2002-02-23 Ross Johnson <rpj@setup1.ise.canberra.edu.au>
+
+ * pthread_rwlock_timedrdlock.c: New - untested.
+ * pthread_rwlock_timedwrlock.c: New - untested.
+
+ * Testsuite passed (except known MSVC++ problems)
+
+ * pthread_cond_destroy.c: Expand the time change
+ critical section to solve deadlock problem.
+
+ * pthread.c: Add all remaining C modules.
+ * pthread.h: Use dllexport/dllimport attributes on functions
+ to avoid using pthread.def.
+ * sched.h: Likewise.
+ * semaphore.h: Likewise.
+ * GNUmakefile: Add new targets for single translation
+ unit build to maximise inlining potential; generate
+ pthread.def automatically.
+ * Makefile: Likewise, but no longer uses pthread.def.
+
+2002-02-20 Ross Johnson <rpj@setup1.ise.canberra.edu.au>
+
+ * pthread_cond_destroy.c (pthread_cond_destroy):
+ Enter the time change critical section earlier.
+
+2002-02-17 Ross Johnson <rpj@setup1.ise.canberra.edu.au
+
+ * Testsuite passed.
+
+ * pthread_timechange_handler_np.c: New; following
+ a suggestion from Alexander Terekhov that CVs should
+ be broadcast so that they all re-evaluate their
+ condition variables and reset a new timeout if
+ required, whenever an application receives a
+ WM_TIMECHANGE message. This message indicates that
+ the system time has been changed. Therefore, CVs
+ waiting for a timeout set as an abs_time will possibly
+ not wake up at the expected time. Some applications
+ may not be tolerant of this.
+ * pthread_cond_init.c: Add CV to linked list.
+ * pthread_cond_destroy.c: Remove CV from linked list.
+ * global.c (ptw32_cond_list_head): New variable.
+ (ptw32_cond_list_tail): New variable.
+ (ptw32_cond_list_cs): New critical section.
+ * ptw32_processInitialize (ptw32_cond_list_cs): Initialize.
+ * ptw32_processTerminate (ptw32_cond_list_cs): Delete.
+
+
+ * Reduce executable size.
+ -----------------------
+ When linking with the static library, only those
+ routines actually called, either directly or indirectly
+ should be included.
+
+ [Gcc has the -ffunction-segments option to do this but MSVC
+ doesn't have this feature as far as I can determine. Other
+ compilers are undetermined as well. - rpj]
+
+ * spin.c: Split file into function segments.
+ * ptw32_spinlock_check_need_init.c: Separated routine from spin.c.
+ * pthread_spin_init.c: Likewise.
+ * pthread_spin_destroy.c: Likewise.
+ * pthread_spin_lock.c: Likewise.
+ * pthread_spin_unlock.c: Likewise.
+ * pthread_spin_trylock.c: Likewise.
+
+ * sync.c: Split file into function segments.
+ * pthread_detach.c: Separated routine from sync.c.
+ * pthread_join.c: Likewise.
+
+ * tsd.c: Split file into function segments.
+ * pthread_key_create.c: Separated routine from tsd.c.
+ * pthread_key_delete.c: Likewise.
+ * pthread_setspecific.c: Likewise.
+ * pthread_getspecific.c: Likewise.
+
+ * sched.c: Split file into function segments.
+ * pthread_attr_setschedpolicy.c: Separated routine from sched.c.
+ * pthread_attr_getschedpolicy.c: Likewise.
+ * pthread_attr_setschedparam.c: Likewise.
+ * pthread_attr_getschedparam.c: Likewise.
+ * pthread_attr_setinheritsched.c: Likewise.
+ * pthread_attr_getinheritsched.c: Likewise.
+ * pthread_setschedparam.c: Likewise.
+ * pthread_getschedparam.c: Likewise.
+ * sched_get_priority_max.c: Likewise.
+ * sched_get_priority_min.c: Likewise.
+ * sched_setscheduler.c: Likewise.
+ * sched_getscheduler.c: Likewise.
+ * sched_yield.c: Likewise.
+
+
+2002-02-16 Ross Johnson <rpj@setup1.ise.canberra.edu.au
+
+ Reduce executable size.
+ -----------------------
+ When linking with the static library, only those
+ routines actually called, either directly or indirectly
+ should be included.
+
+ [Gcc has the -ffunction-segments option to do this but MSVC
+ doesn't have this feature as far as I can determine. Other
+ compilers are undetermined as well. - rpj]
+
+ * mutex.c: Split file into function segments.
+ * pthread_mutexattr_destroy.c: Separated routine from mutex.c
+ * pthread_mutexattr_getpshared.c: Likewise.
+ * pthread_mutexattr_gettype.c: Likewise.
+ * pthread_mutexattr_init.c: Likewise.
+ * pthread_mutexattr_setpshared.c: Likewise.
+ * pthread_mutexattr_settype.c: Likewise.
+ * ptw32_mutex_check_need_init.c: Likewise.
+ * pthread_mutex_destroy.c: Likewise.
+ * pthread_mutex_init.c: Likewise.
+ * pthread_mutex_lock.c: Likewise.
+ * pthread_mutex_timedlock.c: Likewise.
+ * pthread_mutex_trylock.c: Likewise.
+ * pthread_mutex_unlock.c: Likewise.
+
+ * private.c: Split file into function segments.
+ * ptw32_InterlockedCompareExchange.c: Separated routine from private.c
+ * ptw32_callUserDestroyRoutines.c: Likewise.
+ * ptw32_getprocessors.c: Likewise.
+ * ptw32_processInitialize.c: Likewise.
+ * ptw32_processTerminate.c: Likewise.
+ * ptw32_threadDestroy.c: Likewise.
+ * ptw32_threadStart.c: Likewise.
+ * ptw32_throw.c: Likewise.
+ * ptw32_timespec.c: Likewise.
+ * ptw32_tkAssocCreate.c: Likewise.
+ * ptw32_tkAssocDestroy.c: Likewise.
+
+ * rwlock.c: Split file into function segments.
+ * pthread_rwlockattr_destroy.c: Separated routine from rwlock.c
+ * pthread_rwlockattr_getpshared.c: Likewise.
+ * pthread_rwlockattr_init.c: Likewise.
+ * pthread_rwlockattr_setpshared.c: Likewise.
+ * ptw32_rwlock_check_need_init.c: Likewise.
+ * pthread_rwlock_destroy.c: Likewise.
+ * pthread_rwlock_init.c: Likewise.
+ * pthread_rwlock_rdlock.c: Likewise.
+ * pthread_rwlock_tryrdlock.c: Likewise.
+ * pthread_rwlock_trywrlock.c: Likewise.
+ * pthread_rwlock_unlock.c: Likewise.
+ * pthread_rwlock_wrlock.c: Likewise.
+
+2002-02-10 Ross Johnson <rpj@setup1.ise.canberra.edu.au
+
+ Reduce executable size.
+ -----------------------
+ When linking with the static library, only those
+ routines actually called, either directly or indirectly
+ should be included.
+
+ [Gcc has the -ffunction-segments option to do this but MSVC
+ doesn't have this feature as far as I can determine. Other
+ compilers are undetermined as well. - rpj]
+
+ * nonportable.c: Split file into function segments.
+ * np_delay.c: Separated routine from nonportable.c
+ * np_getw32threadhandle.c: Likewise.
+ * np_mutexattr_setkind.c: Likewise.
+ * np_mutexattr_getkind.c: Likewise.
+ * np_num_processors.c: Likewise.
+ * np_win32_attach_detach.c: Likewise.
+
+ * misc.c: Split file into function segments.
+ * pthread_equal.c: Separated routine from nonportable.c.
+ * pthread_getconcurrency.c: Likewise.
+ * pthread_once.c: Likewise.
+ * pthread_self.c: Likewise.
+ * pthread_setconcurrency.c: Likewise.
+ * ptw32_calloc.c: Likewise.
+ * ptw32_new.c: Likewise.
+ * w32_CancelableWait.c: Likewise.
+
+2002-02-09 Ross Johnson <rpj@setup1.ise.canberra.edu.au
+
+ Reduce executable size.
+ -----------------------
+ When linking with the static library, only those
+ routines actually called, either directly or indirectly
+ should be included.
+
+ [Gcc has the -ffunction-segments option to do this but MSVC
+ doesn't have this feature as far as I can determine. Other
+ compilers are undetermined as well. - rpj]
+
+ * condvar.c: Split file into function segments.
+ * pthread_condattr_destroy.c: Separated routine from condvar.c.
+ * pthread_condattr_getpshared.c: Likewise.
+ * pthread_condattr_init.c: Likewise.
+ * pthread_condattr_setpshared.c: Likewise.
+ * ptw32_cond_check_need_init.c: Likewise.
+ * pthread_cond_destroy.c: Likewise.
+ * pthread_cond_init.c: Likewise.
+ * pthread_cond_signal.c: Likewise.
+ * pthread_cond_wait.c: Likewise.
+
+2002-02-07 Alexander Terekhov<TEREKHOV@de.ibm.com>
+
+ * nonportable.c (pthread_delay_np): Make a true
+ cancelation point. Deferred cancels will interrupt the
+ wait.
+
+2002-02-07 Ross Johnson <rpj@setup1.ise.canberra.edu.au
+
+ * misc.c (ptw32_new): Add creation of cancelEvent so that
+ implicit POSIX threads (Win32 threads with a POSIX face)
+ are cancelable; mainly so that pthread_delay_np doesn't fail
+ if called from the main thread.
+ * create.c (pthread_create): Remove creation of cancelEvent
+ from here; now in ptw32_new().
+
+ Reduce executable size.
+ -----------------------
+ When linking with the static library, only those
+ routines actually called, either directly or indirectly
+ should be included.
+
+ [Gcc has the -ffunction-segments option to do this but MSVC
+ doesn't have this feature as far as I can determine. Other
+ compilers are undetermined as well. - rpj]
+
+ * barrier.c: All routines are now in separate compilation units;
+ This file is used to congregate the separate modules for
+ potential inline optimisation and backward build compatibility.
+ * cancel.c: Likewise.
+ * pthread_barrierattr_destroy.c: Separated routine from cancel.c.
+ * pthread_barrierattr_getpshared.c: Likewise.
+ * pthread_barrierattr_init.c: Likewise.
+ * pthread_barrierattr_setpshared.c: Likewise.
+ * pthread_barrier_destroy.c: Likewise.
+ * pthread_barrier_init.c: Likewise.
+ * pthread_barrier_wait.c: Likewise.
+ * pthread_cancel.c: Likewise.
+ * pthread_setcancelstate.c: Likewise.
+ * pthread_setcanceltype.c: Likewise.
+ * pthread_testcancel.c: Likewise.
+
+2002-02-04 Max Woodbury <mtew@cds.duke.edu>
+
+ Reduced name space pollution.
+ -----------------------------
+ When the appropriate symbols are defined, the headers
+ will restrict the definitions of new names. In particular,
+ it must be possible to NOT include the <windows.h>
+ header and related definitions with some combination
+ of symbol definitions. Secondly, it should be possible
+ that additional definitions should be limited to POSIX
+ compliant symbols by the definition of appropriate symbols.
+
+ * pthread.h: POSIX conditionals.
+ * sched.h: POSIX conditionals.
+ * semaphore.h: POSIX conditionals.
+
+ * semaphore.c: Included <limits.h>.
+ (sem_init): Changed magic 0x7FFFFFFFL to INT_MAX.
+ (sem_getvalue): Trial version.
+
+ Reduce executable size.
+ -----------------------
+ When linking with the static library, only those
+ routines actually called, either directly or indirectly
+ should be included.
+
+ [Gcc has the -ffunction-segments option to do this but MSVC
+ doesn't have this feature as far as I can determine. Other
+ compilers are undetermined as well. - rpj]
+
+ * semaphore.c: All routines are now in separate compilation units;
+ This file is used to congregate the separate modules for
+ potential inline optimisation and backward build compatibility.
+ * sem_close.c: Separated routine from semaphore.c.
+ * ptw32_decrease_semaphore.c: Likewise.
+ * sem_destroy.c: Likewise.
+ * sem_getvalue.c: Likewise.
+ * ptw32_increase_semaphore.c: Likewise.
+ * sem_init.c: Likewise.
+ * sem_open.c: Likewise.
+ * sem_post.c: Likewise.
+ * sem_post_multiple.c: Likewise.
+ * sem_timedwait.c: Likewise.
+ * sem_trywait.c: Likewise.
+ * sem_unlink.c: Likewise.
+ * sem_wait.c: Likewise.
+
+2002-02-04 Ross Johnson <rpj@setup1.ise.canberra.edu.au>
+
+ The following extends the idea above to the rest of pthreads-win32 - rpj
+
+ * attr.c: All routines are now in separate compilation units;
+ This file is used to congregate the separate modules for
+ potential inline optimisation and backward build compatibility.
+ * pthread_attr_destroy.c: Separated routine from attr.c.
+ * pthread_attr_getdetachstate.c: Likewise.
+ * pthread_attr_getscope.c: Likewise.
+ * pthread_attr_getstackaddr.c: Likewise.
+ * pthread_attr_getstacksize.c: Likewise.
+ * pthread_attr_init.c: Likewise.
+ * pthread_attr_is_attr.c: Likewise.
+ * pthread_attr_setdetachstate.c: Likewise.
+ * pthread_attr_setscope.c: Likewise.
+ * pthread_attr_setstackaddr.c: Likewise.
+ * pthread_attr_setstacksize.c: Likewise.
+
+ * pthread.c: Agregation of agregate modules for super-inlineability.
+
+2002-02-02 Ross Johnson <rpj@setup1.ise.canberra.edu.au>
+
+ * cancel.c: Rearranged some code and introduced checks
+ to disable cancelation at the start of a thread's cancelation
+ run to prevent double cancelation. The main problem
+ arises if a thread is canceling and then receives a subsequent
+ async cancel request.
+ * private.c: Likewise.
+ * condvar.c: Place pragmas around cleanup_push/pop to turn
+ off inline optimisation (/Obn where n>0 - MSVC only). Various
+ optimisation switches in MSVC turn this on, which interferes with
+ the way that cleanup handlers are run in C++ EH and SEH
+ code. Application code compiled with inline optimisation must
+ also wrap cleanup_push/pop blocks with the pragmas, e.g.
+ #pragma inline_depth(0)
+ pthread_cleanup_push(...)
+ ...
+ pthread_cleanup_pop(...)
+ #pragma inline_depth(8)
+ * rwlock.c: Likewise.
+ * mutex.c: Remove attempts to inline some functions.
+ * signal.c: Modify misleading comment.
+
+2002-02-01 Ross Johnson <rpj@setup1.ise.canberra.edu.au>
+
+ * semaphore.c (sem_trywait): Fix missing errno return
+ for systems that define NEED_SEM (e.g. early WinCE).
+ * mutex.c (pthread_mutex_timedlock): Return ENOTSUP
+ for systems that define NEED_SEM since they don't
+ have sem_trywait().
+
+2002-01-27 Ross Johnson <rpj@special.ise.canberra.edu.au>
+
+ * mutex.c (pthread_mutex_timedlock): New function suggested by
+ Alexander Terekhov. The logic required to implement this
+ properly came from Alexander, with some collaboration
+ with Thomas Pfaff.
+ (pthread_mutex_unlock): Wrap the waiters check and sema
+ post in a critical section to prevent a race with
+ pthread_mutex_timedlock.
+ (ptw32_timed_semwait): New function;
+ returns a special result if the absolute timeout parameter
+ represents a time already passed when called; used by
+ pthread_mutex_timedwait(). Have deliberately not reused
+ the name "ptw32_sem_timedwait" because they are not the same
+ routine.
+ * condvar.c (ptw32_cond_timedwait): Use the new sem_timedwait()
+ instead of ptw32_sem_timedwait(), which now has a different
+ function. See previous.
+ * implement.h: Remove prototype for ptw32_sem_timedwait.
+ See next.
+ (pthread_mutex_t_): Add critical section element for access
+ to lock_idx during mutex post-timeout processing.
+ * semaphore.h (sem_timedwait): See next.
+ * semaphore.c (sem_timedwait): See next.
+ * private.c (ptw32_sem_timedwait): Move to semaphore.c
+ and rename as sem_timedwait().
+
+2002-01-18 Ross Johnson <rpj@special.ise.canberra.edu.au>
+
+ * sync.c (pthread_join): Was getting the exit code from the
+ calling thread rather than the joined thread if
+ defined(__MINGW32__) && !defined(__MSVCRT__).
+
+2002-01-15 Ross Johnson <rpj@special.ise.canberra.edu.au>
+
+ * pthread.h: Unless the build explicitly defines __CLEANUP_SEH,
+ __CLEANUP_CXX, or __CLEANUP_C, then the build defaults to
+ __CLEANUP_C style cleanup. This style uses setjmp/longjmp
+ in the cancelation and thread exit implementations and therefore
+ won't do stack unwinding if linked to applications that have it
+ (e.g. C++ apps). This is currently consistent with most/all
+ commercial Unix POSIX threads implementations.
+
+ * spin.c (pthread_spin_init): Edit renamed function call.
+ * nonportable.c (pthread_num_processors_np): New.
+ (pthread_getprocessors_np): Renamed to ptw32_getprocessors
+ and moved to private.c.
+ * private.c (pthread_getprocessors): Moved here from
+ nonportable.c.
+ * pthread.def (pthread_getprocessors_np): Removed
+ from export list.
+
+ * rwlock.c (pthread_rwlockattr_init): New.
+ (pthread_rwlockattr_destroy): New.
+ (pthread_rwlockattr_getpshared): New.
+ (pthread_rwlockattr_setpshared): New.
+
+2002-01-14 Ross Johnson <rpj@special.ise.canberra.edu.au>
+
+ * attr.c (pthread_attr_setscope): Fix struct pointer
+ indirection error introduced 2002-01-04.
+ (pthread_attr_getscope): Likewise.
+
+2002-01-12 Ross Johnson <rpj@special.ise.canberra.edu.au>
+
+ * pthread.dsp (SOURCE): Add missing source files.
+
+2002-01-08 Ross Johnson <rpj@setup1.ise.canberra.edu.au>
+
+ * mutex.c (pthread_mutex_trylock): use
+ ptw32_interlocked_compare_exchange function pointer
+ rather than ptw32_InterlockedCompareExchange() directly
+ to retain portability to non-iX86 processors,
+ e.g. WinCE etc. The pointer will point to the native
+ OS version of InterlockedCompareExchange() if the
+ OS supports it (see ChangeLog entry of 2001-10-17).
+
+2002-01-07 Thomas Pfaff <tpfaff@gmx.net>, Alexander Terekhov <TEREKHOV@de.ibm.com>
+
+ * mutex.c (pthread_mutex_init): Remove critical
+ section calls.
+ (pthread_mutex_destroy): Likewise.
+ (pthread_mutex_unlock): Likewise.
+ (pthread_mutex_trylock): Likewise; uses
+ ptw32_InterlockedCompareExchange() to avoid need for
+ critical section; library is no longer i386 compatible;
+ recursive mutexes now increment the lock count rather
+ than return EBUSY; errorcheck mutexes return EDEADLCK
+ rather than EBUSY. This behaviour is consistent with the
+ Solaris pthreads implementation.
+ * implement.h (pthread_mutex_t_): Remove critical
+ section element - no longer needed.
+
+
+2002-01-04 Ross Johnson <rpj@setup1.ise.canberra.edu.au>
+
+ * attr.c (pthread_attr_setscope): Add more error
+ checking and actually store the scope value even
+ though it's not really necessary.
+ (pthread_attr_getscope): Return stored value.
+ * implement.h (pthread_attr_t_): Add new scope element.
+ * ANNOUNCE: Fix out of date comment next to
+ pthread_attr_setscope in conformance section.
+
+2001-12-21 Alexander Terekhov <TEREKHOV@de.ibm.com>
+
+ * mutex.c (pthread_mutex_lock): Decrementing lock_idx was
+ not thread-safe.
+ (pthread_mutex_trylock): Likewise.
+
+2001-10-26 prionx@juno.com
+
+ * semaphore.c (sem_init): Fix typo and missing bracket
+ in conditionally compiled code. Only older versions of
+ WinCE require this code, hence it doesn't normally get
+ tested; somehow when sem_t reverted to an opaque struct
+ the calloc NULL check was left in the conditionally included
+ section.
+ (sem_destroy): Likewise, the calloced sem_t wasn't being freed.
+
+2001-10-25 Ross Johnson <rpj@setup1.ise.canberra.edu.au>
+
+ * GNUmakefile (libwsock32): Add to linker flags for
+ WSAGetLastError() and WSASetLastError().
+ * Makefile (wsock32.lib): Likewise.
+ * create.c: Minor mostly inert changes.
+ * implement.h (PTW32_MAX): Move into here and renamed
+ from sched.h.
+ (PTW32_MIN): Likewise.
+ * GNUmakefile (TEST_ICE): Define if testing internal
+ implementation of InterlockedCompareExchange.
+ * Makefile (TEST_ICE): Likewise.
+ * private.c (TEST_ICE): Likewise.
+
+2001-10-24 Ross Johnson <rpj@setup1.ise.canberra.edu.au>
+
+ * attr.c (pthread_attr_setstacksize): Quell warning
+ from LCC by conditionally compiling the stacksize
+ validity check. LCC correctly warns that the condition
+ (stacksize < PTHREAD_STACK_MIN) is suspicious
+ because STACK_MIN is 0 and stacksize is of type
+ size_t (or unsigned int).
+
+2001-10-17 Ross Johnson <rpj@setup1.ise.canberra.edu.au>
+
+ * barrier.c: Move _LONG and _LPLONG defines into
+ implement.h; rename to PTW32_INTERLOCKED_LONG and
+ PTW32_INTERLOCKED_LPLONG respectively.
+ * spin.c: Likewise; ptw32_interlocked_compare_exchange used
+ in place of InterlockedCompareExchange directly.
+ * global.c (ptw32_interlocked_compare_exchange): Add
+ prototype for this new routine pointer to be used when
+ InterlockedCompareExchange isn't supported by Windows.
+ * nonportable.c (pthread_win32_process_attach_np): Check for
+ support of InterlockedCompareExchange in kernel32 and assign its
+ address to ptw32_interlocked_compare_exchange if it exists, or
+ our own ix86 specific implementation ptw32_InterlockedCompareExchange.
+ *private.c (ptw32_InterlockedCompareExchange): An
+ implementation of InterlockedCompareExchange() which is
+ specific to ix86; written directly in assembler for either
+ MSVC or GNU C; needed because Windows 95 doesn't support
+ InterlockedCompareExchange().
+
+ * sched.c (sched_get_priority_min): Extend to return
+ THREAD_PRIORITY_IDLE.
+ (sched_get_priority_max): Extend to return
+ THREAD_PRIORITY_CRITICAL.
+
+2001-10-15 Ross Johnson <rpj@setup1.ise.canberra.edu.au>
+
+ * spin.c (pthread_spin_lock): PTHREAD_SPINLOCK_INITIALIZER
+ was causing a program fault.
+ (pthread_spin_init): Could have alloced memory
+ without freeing under some error conditions.
+
+ * mutex.c (pthread_mutex_init): Move memory
+ allocation of mutex struct after checking for
+ PROCESS_SHARED.
+
+2001-10-12 Ross Johnson <rpj@setup1.ise.canberra.edu.au>
+
+ * spin.c (pthread_spin_unlock): Was not returning
+ EPERM if the spinlock was not locked, for multi CPU
+ machines.
+
+2001-10-08 Ross Johnson <rpj@setup1.ise.canberra.edu.au>
+
+ * spin.c (pthread_spin_trylock): Was not returning
+ EBUSY for multi CPU machines.
+
+2001-08-24 Ross Johnson <rpj@setup1.ise.canberra.edu.au>
+
+ * condvar.c (pthread_cond_destroy): Remove cv element
+ that is no longer used.
+ * implement.h: Likewise.
+
+2001-08-23 Alexander Terekhov <TEREKHOV@de.ibm.com>
+
+ * condvar.c (pthread_cond_destroy): fix bug with
+ respect to deadlock in the case of concurrent
+ _destroy/_unblock; a condition variable can be destroyed
+ immediately after all the threads that are blocked on
+ it are awakened.
+
+2001-08-23 Phil Frisbie, Jr. <phil@hawksoft.com>
+
+ * tsd.c (pthread_getspecific): Preserve the last
+ winsock error [from WSAGetLastError()].
+
+2001-07-18 Scott McCaskill <scott@magruder.org>
+
+ * mutex.c (pthread_mutexattr_init): Return ENOMEM
+ immediately and don't dereference the NULL pointer
+ if calloc fails.
+ (pthread_mutexattr_getpshared): Don't dereference
+ a pointer that is possibly NULL.
+ * barrier.c (pthread_barrierattr_init): Likewise
+ (pthread_barrierattr_getpshared): Don't dereference
+ a pointer that is possibly NULL.
+ * condvar.c (pthread_condattr_getpshared): Don't dereference
+ a pointer that is possibly NULL.
+
+2001-07-15 Ross Johnson <rpj@setup1.ise.canberra.edu.au>
+
+ * rwlock.c (pthread_rwlock_wrlock): Is allowed to be
+ a cancelation point; re-enable deferred cancelability
+ around the CV call.
+
+2001-07-10 Ross Johnson <rpj@setup1.ise.canberra.edu.au>
+
+ * barrier.c: Still more revamping. The exclusive access
+ mutex isn't really needed so it has been removed and replaced
+ by an InterlockedDecrement(). nSerial has been removed.
+ iStep is now dual-purpose. The process shared attribute
+ is now stored in the barrier struct.
+ * implement.h (pthread_barrier_t_): Lost some/gained one
+ elements.
+ * private.c (ptw32_threadStart): Removed some comments.
+
+2001-07-10 Ross Johnson <rpj@setup1.ise.canberra.edu.au>
+
+ * barrier.c: Revamped to fix the race condition. Two alternating
+ semaphores are used instead of the PulseEvent. Also improved
+ overall throughput by returning PTHREAD_BARRIER_SERIAL_THREAD
+ to the first waking thread.
+ * implement.h (pthread_barrier_t_): Revamped.
+
+2001-07-09 Ross Johnson <rpj@setup1.ise.canberra.edu.au>
+
+ * barrier.c: Fix several bugs in all routines. Now passes
+ tests/barrier5.c which is fairly rigorous. There is still
+ a non-optimal work-around for a race condition between
+ the barrier breeched event signal and event wait. Basically
+ the last (signalling) thread to hit the barrier yields
+ to allow any other threads, which may have lost the race,
+ to complete.
+
+2001-07-07 Ross Johnson <rpj@setup1.ise.canberra.edu.au>
+
+ * barrier.c: Changed synchronisation mechanism to a
+ Win32 manual reset Event and use PulseEvent to signal
+ waiting threads. If the implementation continued to use
+ a semaphore it would require a second semaphore and
+ some management to use them alternately as barriers. A
+ single semaphore allows threads to cascade from one barrier
+ through the next, leaving some threads blocked at the first.
+ * implement.h (pthread_barrier_t_): As per above.
+ * general: Made a number of other routines inlinable.
+
+2001-07-07 Ross Johnson <rpj@setup1.ise.canberra.edu.au>
+
+ * spin.c: Revamped and working; included static initialiser.
+ Now beta level.
+ * barrier.c: Likewise.
+ * condvar.c: Macro constant change; inline auto init routine.
+ * mutex.c: Likewise.
+ * rwlock.c: Likewise.
+ * private.c: Add support for spinlock initialiser.
+ * global.c: Likewise.
+ * implement.h: Likewise.
+ * pthread.h (PTHREAD_SPINLOCK_INITIALIZER): Fix typo.
+
+2001-07-05 Ross Johnson <rpj@setup1.ise.canberra.edu.au>
+
+ * barrier.c: Remove static initialisation - irrelevent
+ for this object.
+ * pthread.h (PTHREAD_BARRIER_INITIALIZER): Removed.
+ * rwlock.c (pthread_rwlock_wrlock): This routine is
+ not a cancelation point - disable deferred
+ cancelation around call to pthread_cond_wait().
+
+2001-07-05 Ross Johnson <rpj@setup1.ise.canberra.edu.au>
+
+ * spin.c: New module implementing spin locks.
+ * barrier.c: New module implementing barriers.
+ * pthread.h (_POSIX_SPIN_LOCKS): defined.
+ (_POSIX_BARRIERS): Defined.
+ (pthread_spin_*): Defined.
+ (pthread_barrier*): Defined.
+ (PTHREAD_BARRIER_SERIAL_THREAD): Defined.
+ * implement.h (pthread_spinlock_t_): Defined.
+ (pthread_barrier_t_): Defined.
+ (pthread_barrierattr_t_): Defined.
+
+ * mutex.c (pthread_mutex_lock): Return with the error
+ if an auto-initialiser initialisation fails.
+
+ * nonportable.c (pthread_getprocessors_np): New; gets the
+ number of available processors for the current process.
+
+2001-07-03 Ross Johnson <rpj@setup1.ise.canberra.edu.au>
+
+ * pthread.h (_POSIX_READER_WRITER_LOCKS): Define it
+ if not already defined.
+
+2001-07-01 Alexander Terekhov <TEREKHOV@de.ibm.com>
+
+ * condvar.c: Fixed lost signal bug reported by Timur Aydin
+ (taydin@snet.net).
+ [RPJ (me) didn't translate the original algorithm
+ correctly.]
+ * semaphore.c: Added sem_post_multiple; this is a useful
+ routine, but it doesn't appear to be standard. For now it's
+ not an exported function.
+
+2001-06-25 Ross Johnson <rpj@setup1.ise.canberra.edu.au>
+
+ * create.c (pthread_create): Add priority inheritance
+ attributes.
+ * mutex.c (pthread_mutex_lock): Remove some overhead for
+ PTHREAD_MUTEX_NORMAL mutex types. Specifically, avoid
+ calling pthread_self() and pthread_equal() to check/set
+ the mutex owner. Introduce a new pseudo owner for this
+ type. Test results suggest increases in speed of up to
+ 90% for non-blocking locks.
+ This is the default type of mutex used internally by other
+ synchronising objects, ie. condition variables and
+ read-write locks. The test rwlock7.c shows about a
+ 30-35% speed increase over snapshot 2001-06-06. The
+ price of this is that the application developer
+ must ensure correct behaviour, or explicitly set the
+ mutex to a safer type such as PTHREAD_MUTEX_ERRORCHECK.
+ For example, PTHREAD_MUTEX_NORMAL (or PTHREAD_MUTEX_DEFAULT)
+ type mutexes will not return an error if a thread which is not
+ the owner calls pthread_mutex_unlock. The call will succeed
+ in unlocking the mutex if it is currently locked, but a
+ subsequent unlock by the true owner will then fail with EPERM.
+ This is however consistent with some other implementations.
+ (pthread_mutex_unlock): Likewise.
+ (pthread_mutex_trylock): Likewise.
+ (pthread_mutex_destroy): Likewise.
+ * attr.c (pthread_attr_init): PTHREAD_EXPLICIT_SCHED is the
+ default inheritance attribute; THREAD_PRIORITY_NORMAL is
+ the default priority for new threads.
+ * sched.c (pthread_attr_setschedpolicy): Added routine.
+ (pthread_attr_getschedpolicy): Added routine.
+ (pthread_attr_setinheritsched): Added routine.
+ (pthread_attr_getinheritsched): Added routine.
+ * pthread.h (sched_rr_set_interval): Added as a macro;
+ returns -1 with errno set to ENOSYS.
+
+2001-06-23 Ross Johnson <rpj@setup1.ise.canberra.edu.au>
+
+ *sched.c (pthread_attr_setschedparam): Add priority range
+ check.
+ (sched_setscheduler): New function; checks for a valid
+ pid and policy; checks for permission to set information
+ in the target process; expects pid to be a Win32 process ID,
+ not a process handle; the only scheduler policy allowed is
+ SCHED_OTHER.
+ (sched_getscheduler): Likewise, but checks for permission
+ to query.
+ * pthread.h (SCHED_*): Moved to sched.h as defined in the
+ POSIX standard.
+ * sched.h (SCHED_*): Moved from pthread.h.
+ (pid_t): Defined if necessary.
+ (sched_setscheduler): Defined.
+ (sched_getscheduler): Defined.
+ * pthread.def (sched_setscheduler): Exported.
+ (sched_getscheduler): Likewise.
+
+2001-06-23 Ralf Brese <Ralf.Brese@pdb4.siemens.de>
+
+ * create.c (pthread_create): Set thread priority from
+ thread attributes.
+
+2001-06-18 Ross Johnson <rpj@setup1.ise.canberra.edu.au>
+
+ * Made organisational-only changes to UWIN additions.
+ * dll.c (dllMain): Moved UWIN process attach code
+ to pthread_win32_process_attach_np(); moved
+ instance of pthread_count to global.c.
+ * global.c (pthread_count): Moved from dll.c.
+ * nonportable.c (pthread_win32_process_attach_np):
+ Moved _UWIN code to here from dll.c.
+ * implement.h (pthread_count): Define extern int.
+ * create.c (pthread_count): Remove extern int.
+ * private.c (pthread_count): Likewise.
+ * exit.c (pthread_count): Likewise.
+
+2001-06-18 David Korn <dgk@research.att.com>
+
+ * dll.c: Added changes necessary to work with UWIN.
+ * create.c: Likewise.
+ * pthread.h: Likewise.
+ * misc.c: Likewise.
+ * exit.c: Likewise.
+ * private.c: Likewise.
+ * implement.h: Likewise.
+ There is some room at the start of struct pthread_t_
+ to implement the signal semantics in UWIN's posix.dll
+ although this is not yet complete.
+ * Nmakefile: Compatible with UWIN's Nmake utility.
+ * Nmakefile.tests: Likewise - for running the tests.
+
+2001-06-08 Ross Johnson <rpj@setup1.ise.canberra.edu.au>
+
+ * semaphore.h (sem_t): Fixed for compile and test.
+ * implement.h (sem_t_): Likewise.
+ * semaphore.c: Likewise.
+ * private.c (ptw32_sem_timedwait): Updated to use new
+ opaque sem_t.
+
+2001-06-06 Ross Johnson <rpj@setup1.ise.canberra.edu.au>
+
+ * semaphore.h (sem_t): Is now an opaque pointer;
+ moved actual definition to implement.h.
+ * implement.h (sem_t_): Move here from semaphore.h;
+ was the definition of sem_t.
+ * semaphore.c: Wherever necessary, changed use of sem
+ from that of a pointer to a pointer-pointer; added
+ extra checks for a valid sem_t; NULL sem_t when
+ it is destroyed; added extra checks when creating
+ and destroying sem_t elements in the NEED_SEM
+ code branches; changed from using a pthread_mutex_t
+ ((*sem)->mutex) to CRITICAL_SECTION ((*sem)->sem_lock_cs)
+ in NEED_SEM branches for access serialisation.
+
+2001-06-06 Ross Johnson <rpj@setup1.ise.canberra.edu.au>
+
+ * mutex.c (pthread_mutexattr_init): Remove
+ ptw32_mutex_default_kind.
+
+2001-06-05 Ross Johnson <rpj@setup1.ise.canberra.edu.au>
+
+ * nonportable.c (pthread_mutex_setdefaultkind_np):
+ Remove - should not have been included in the first place.
+ (pthread_mutex_getdefaultkind_np): Likewise.
+ * global.c (ptw32_mutex_default_kind): Likewise.
+ * mutex.c (pthread_mutex_init): Remove use of
+ ptw32_mutex_default_kind.
+ * pthread.h (pthread_mutex_setdefaultkind_np): Likewise.
+ (pthread_mutex_getdefaultkind_np): Likewise.
+ * pthread.def (pthread_mutexattr_setkind_np): Added.
+ (pthread_mutexattr_getkind_np): Likewise.
+
+ * README: Many changes that should have gone in before
+ the last snapshot.
+ * README.NONPORTABLE: New - referred to by ANNOUNCE
+ but never created; documents the non-portable routines
+ included in the library - moved from README with new
+ routines added.
+ * ANNOUNCE (pthread_mutexattr_setkind_np): Added to
+ compliance list.
+ (pthread_mutexattr_getkind_np): Likewise.
+
+2001-06-04 Ross Johnson <rpj@setup1.ise.canberra.edu.au>
+
+ * condvar.c: Add original description of the algorithm as
+ developed by Terekhov and Thomas, plus reference to
+ README.CV.
+
+2001-06-03 Alexander Terekhov <TEREKHOV@de.ibm.com>, Louis Thomas <lthomas@arbitrade.com>
+
+ * condvar.c (pthread_cond_init): Completely revamped.
+ (pthread_cond_destroy): Likewise.
+ (ptw32_cond_wait_cleanup): Likewise.
+ (ptw32_cond_timedwait): Likewise.
+ (ptw32_cond_unblock): New general signaling routine.
+ (pthread_cond_signal): Now calls ptw32_cond_unblock.
+ (pthread_cond_broadcast): Likewise.
+ * implement.h (pthread_cond_t_): Revamped.
+ * README.CV: New; explanation of the above changes.
+
+2001-05-30 Ross Johnson <rpj@setup1.ise.canberra.edu.au>
+
+ * pthread.h (rand_r): Fake using _seed argument to quell
+ compiler warning (compiler should optimise this away later).
+
+ * GNUmakefile (OPT): Leave symbolic information out of the library
+ and increase optimisation level - for smaller faster prebuilt
+ dlls.
+
+2001-05-29 Milan Gardian <Milan.Gardian@LEIBINGER.com>
+
+ * Makefile: fix typo.
+ * pthreads.h: Fix problems with stdcall/cdecl conventions, in particular
+ remove the need for PT_STDCALL everywhere; remove warning supression.
+ * (errno): Fix the longstanding "inconsistent dll linkage" problem
+ with errno; now also works with /MD debugging libs -
+ warnings emerged when compiling pthreads library with /MD (or /MDd)
+ compiler switch, instead of /MT (or /MTd) (i.e. when compiling pthreads
+ using Multithreaded DLL CRT instead of Multithreaded statically linked
+ CRT).
+ * create.c (pthread_create): Likewise; fix typo.
+ * private.c (ptw32_threadStart): Eliminate use of terminate() which doesn't
+ throw exceptions.
+ * Remove unnecessary #includes from a number of modules -
+ [I had to #include malloc.h in implement.h for gcc - rpj].
+
+2001-05-29 Thomas Pfaff <tpfaff@gmx.net>
+
+ * pthread.h (PTHREAD_MUTEX_DEFAULT): New; equivalent to
+ PTHREAD_MUTEX_DEFAULT_NP.
+ * (PTHREAD_MUTEX_NORMAL): Similarly.
+ * (PTHREAD_MUTEX_ERRORCHECK): Similarly.
+ * (PTHREAD_MUTEX_RECURSIVE): Similarly.
+ * (pthread_mutex_setdefaultkind_np): New; Linux compatibility stub
+ for pthread_mutexattr_settype.
+ * (pthread_mutexattr_getkind_np): New; Linux compatibility stub
+ for pthread_mutexattr_gettype.
+ * mutex.c (pthread_mutexattr_settype): New; allow
+ the following types of mutex:
+ PTHREAD_MUTEX_DEFAULT_NP
+ PTHREAD_MUTEX_NORMAL_NP
+ PTHREAD_MUTEX_ERRORCHECK_NP
+ PTHREAD_MUTEX_RECURSIVE_NP
+ * Note that PTHREAD_MUTEX_DEFAULT is equivalent to
+ PTHREAD_MUTEX_NORMAL - ie. mutexes should no longer
+ be recursive by default, and a thread will deadlock if it
+ tries to relock a mutex it already owns. This is inline with
+ other pthreads implementations.
+ * (pthread_mutex_lock): Process the lock request
+ according to the mutex type.
+ * (pthread_mutex_init): Eliminate use of Win32 mutexes as the
+ basis of POSIX mutexes - instead, a combination of one critical section
+ and one semaphore are used in conjunction with Win32 Interlocked* routines.
+ * (pthread_mutex_destroy): Likewise.
+ * (pthread_mutex_lock): Likewise.
+ * (pthread_mutex_trylock): Likewise.
+ * (pthread_mutex_unlock): Likewise.
+ * Use longjmp/setjmp to implement cancelation when building the library
+ using a C compiler which doesn't support exceptions, e.g. gcc -x c (note
+ that gcc -x c++ uses exceptions).
+ * Also fixed some of the same typos and eliminated PT_STDCALL as
+ Milan Gardian's patches above.
+
+2001-02-07 Alexander Terekhov <TEREKHOV@de.ibm.com>
+
+ * rwlock.c: Revamped.
+ * implement.h (pthread_rwlock_t_): Redefined.
+ This implementation does not have reader/writer starvation problem.
+ Rwlock attempts to behave more like a normal mutex with
+ races and scheduling policy determining who is more important;
+ It also supports recursive locking,
+ has less synchronization overhead (no broadcasts at all,
+ readers are not blocked on any condition variable) and seem to
+ be faster than the current implementation [W98 appears to be
+ approximately 15 percent faster at least - on top of speed increase
+ from Thomas Pfaff's changes to mutex.c - rpj].
+
+2000-12-29 Ross Johnson <rpj@special.ise.canberra.edu.au>
+
+ * Makefile: Back-out "for" loops which don't work.
+
+ * GNUmakefile: Remove the fake.a target; add the "realclean"
+ target; don't remove built libs under the "clean" target.
+
+ * config.h: Add a guard against multiple inclusion.
+
+ * semaphore.h: Add some defines from config.h to make
+ semaphore.h independent of config.h when building apps.
+
+ * pthread.h (_errno): Back-out previous fix until we know how to
+ fix it properly.
+
+ * implement.h (lockCount): Add missing element to pthread_mutex_t_.
+
+ * sync.c (pthread_join): Spelling fix in comment.
+
+ * private.c (ptw32_threadStart): Reset original termination
+ function (C++).
+ (ptw32_threadStart): Cleanup detached threads early in case
+ the library is statically linked.
+ (ptw32_callUserDestroyRoutines): Remove [SEH] __try block from
+ destructor call so that unhandled exceptions will be passed through
+ to the system; call terminate() from [C++] try block for the same
+ reason.
+
+ * tsd.c (pthread_getspecific): Add comment.
+
+ * mutex.c (pthread_mutex_init): Initialise new elements in
+ pthread_mutex_t.
+ (pthread_mutex_unlock): Invert "pthread_equal()" test.
+
+2000-12-28 Ross Johnson <rpj@special.ise.canberra.edu.au>
+
+ * semaphore.c (mode_t): Use ifndef HAVE_MODE_T to include definition.
+
+ * config.h.in (HAVE_MODE_T): Added.
+ (_UWIN): Start adding defines for the UWIN package.
+
+ * private.c (ptw32_threadStart): Unhandled exceptions are
+ now passed through to the system to deal with. This is consistent
+ with normal Windows behaviour. C++ applications may use
+ set_terminate() to override the default behaviour which is
+ to call ptw32_terminate(). Ptw32_terminate() cleans up some
+ POSIX thread stuff before calling the system default function
+ which calls abort(). The users termination function should conform
+ to standard C++ semantics which is to not return. It should
+ exit the thread (call pthread_exit()) or exit the application.
+ * private.c (ptw32_terminate): Added as the default set_terminate()
+ function. It calls the system default function after cleaning up
+ some POSIX thread stuff.
+
+ * implement.h (ptw32_try_enter_critical_section): Move
+ declaration.
+ * global.c (ptw32_try_enter_critical_section): Moved
+ from dll.c.
+ * dll.c: Move process and thread attach/detach code into
+ functions in nonportable.c.
+ * nonportable.c (pthread_win32_process_attach_np): Process
+ attach code from dll.c is now available to static linked
+ applications.
+ * nonportable.c (pthread_win32_process_detach_np): Likewise.
+ * nonportable.c (pthread_win32_thread_attach_np): Likewise.
+ * nonportable.c (pthread_win32_thread_detach_np): Likewise.
+
+ * pthread.h: Add new non-portable prototypes for static
+ linked applications.
+
+ * GNUmakefile (OPT): Increase optimisation flag and remove
+ debug info flag.
+
+ * pthread.def: Add new non-portable exports for static
+ linked applications.
+
+2000-12-11 Ross Johnson <rpj@special.ise.canberra.edu.au>
+
+ * FAQ: Update Answer 6 re getting a fully working
+ Mingw32 built library.
+
+2000-10-10 Steven Reddie <smr@essemer.com.au>
+
+ * misc.c (pthread_self): Restore Win32 "last error"
+ cleared by TlsGetValue() call in
+ pthread_getspecific()
+
+2000-09-20 Arthur Kantor <akantor@bexusa.com>
+
+ * mutex.c (pthread_mutex_lock): Record the owner
+ of the mutex. This requires also keeping count of
+ recursive locks ourselves rather than leaving it
+ to Win32 since we need to know when to NULL the
+ thread owner when the mutex is unlocked.
+ (pthread_mutex_trylock): Likewise.
+ (pthread_mutex_unlock): Check that the calling
+ thread owns the mutex, decrement the recursive
+ lock count, and NULL the owner if zero. Return
+ EPERM if the mutex is owned by another thread.
+ * implement.h (pthread_mutex_t_): Add ownerThread
+ and lockCount members.
+
+2000-09-13 Jef Gearhart <jgearhart@tpssys.com>
+
+ * mutex.c (pthread_mutex_init): Call
+ TryEnterCriticalSection through the pointer
+ rather than directly so that the dll can load
+ on Windows versions that can't resolve the
+ function, eg. Windows 95
+
+2000-09-09 Ross Johnson <rpj@special.ise.canberra.edu.au>
+
+ * pthread.h (ctime_r): Fix arg.
+
+2000-09-08 Ross Johnson <rpj@special.ise.canberra.edu.au>
+
+ * GNUmakefile(_WIN32_WINNT=0x400): Define in CFLAGS;
+ doesn't seem to be needed though.
+
+ * cancel.c (pthread_cancel): Must get "self" through
+ calling pthread_self() which will ensure a POSIX thread
+ struct is built for non-POSIX threads; return an error
+ if this fails
+ - Ollie Leahy <ollie@mpt.ie>
+ (pthread_setcancelstate): Likewise.
+ (pthread_setcanceltype): Likewise.
+ * misc.c (ptw32_cancelable_wait): Likewise.
+
+ * private.c (ptw32_tkAssocCreate): Remove unused #if 0
+ wrapped code.
+
+ * pthread.h (ptw32_get_exception_services_code):
+ Needed to be forward declared unconditionally.
+
+2000-09-06 Ross Johnson <rpj@special.ise.canberra.edu.au>
+
+ * cancel.c (pthread_cancel): If called from the main
+ thread "self" would be NULL; get "self" via pthread_self()
+ instead of directly from TLS so that an implicit
+ pthread object is created.
+
+ * misc.c (pthread_equal): Strengthen test for NULLs.
+
+2000-09-02 Ross Johnson <rpj@special.ise.canberra.edu.au>
+
+ * condvar.c (ptw32_cond_wait_cleanup): Ensure that all
+ waking threads check if they are the last, and notify
+ the broadcaster if so - even if an error occurs in the
+ waiter.
+
+ * semaphore.c (_decrease_semaphore): Should be
+ a call to ptw32_decrease_semaphore.
+ (_increase_semaphore): Should be a call to
+ ptw32_increase_semaphore.
+
+ * misc.c (ptw32_cancelable_wait): Renamed from
+ CancelableWait.
+ * rwlock.c (_rwlock_check*): Renamed to
+ ptw32_rwlock_check*.
+ * mutex.c (_mutex_check*): Renamed to ptw32_mutex_check*.
+ * condvar.c (cond_timed*): Renamed to ptw32_cond_timed*.
+ (_cond_check*): Renamed to ptw32_cond_check*.
+ (cond_wait_cleanup*): Rename to ptw32_cond_wait_cleanup*.
+ (ptw32_cond_timedwait): Add comments.
+
+2000-08-22 Ross Johnson <rpj@setup1.ise.canberra.edu.au>
+
+ * private.c (ptw32_throw): Fix exception test;
+ move exceptionInformation declaration.
+
+ * tsd.c (pthread_key_create): newkey wrongly declared.
+
+ * pthread.h: Fix comment block.
+
+2000-08-18 Ross Johnson <rpj@setup1.ise.canberra.edu.au>
+
+ * mutex.c (pthread_mutex_destroy): Check that the mutex isn't
+ held; invalidate the mutex as early as possible to avoid
+ contention; not perfect - FIXME!
+
+ * rwlock.c (pthread_rwlock_init): Remove redundant assignment
+ to "rw".
+ (pthread_rwlock_destroy): Invalidate the rwlock before
+ freeing up any of it's resources - to avoid contention.
+
+ * private.c (ptw32_tkAssocCreate): Change assoc->lock
+ to use a dynamically initialised mutex - only consumes
+ a W32 mutex or critical section when first used,
+ not before.
+
+ * mutex.c (pthread_mutex_init): Remove redundant assignment
+ to "mx".
+ (pthread_mutexattr_destroy): Set attribute to NULL
+ before freeing it's memory - to avoid contention.
+
+ * implement.h (PTW32_EPS_CANCEL/PTW32_EPS_EXIT):
+ Must be defined for all compilers - used as generic
+ exception selectors by ptw32_throw().
+
+ * Several: Fix typos from scripted edit session
+ yesterday.
+
+ * nonportable.c (pthread_mutexattr_setforcecs_np):
+ Moved this function from mutex.c.
+ (pthread_getw32threadhandle_np): New function to
+ return the win32 thread handle that the POSIX
+ thread is using.
+ * mutex.c (pthread_mutexattr_setforcecs_np):
+ Moved to new file "nonportable.c".
+
+ * pthread.h (PTW32_BUILD): Only redefine __except
+ and catch compiler keywords if we aren't building
+ the library (ie. PTW32_BUILD is not defined) -
+ this is safer than defining and then undefining
+ if not building the library.
+ * implement.h: Remove __except and catch undefines.
+ * Makefile (CFLAGS): Define PTW32_BUILD.
+ * GNUmakefile (CFLAGS): Define PTW32_BUILD.
+
+ * All appropriate: Change Pthread_exception* to
+ ptw32_exception* to be consistent with internal
+ identifier naming.
+
+ * private.c (ptw32_throw): New function to provide
+ a generic exception throw for all internal
+ exceptions and EH schemes.
+ (ptw32_threadStart): pthread_exit() value is now
+ returned via the thread structure exitStatus
+ element.
+ * exit.c (pthread_exit): pthread_exit() value is now
+ returned via the thread structure exitStatus
+ element.
+ * cancel.c (ptw32_cancel_self): Now uses ptw32_throw.
+ (pthread_setcancelstate): Ditto.
+ (pthread_setcanceltype): Ditto.
+ (pthread_testcancel): Ditto.
+ (pthread_cancel): Ditto.
+ * misc.c (CancelableWait): Ditto.
+ * exit.c (pthread_exit): Ditto.
+ * All applicable: Change PTW32_ prefix to
+ PTW32_ prefix to remove leading underscores
+ from private library identifiers.
+
+2000-08-17 Ross Johnson <rpj@special.ise.canberra.edu.au>
+
+ * All applicable: Change _pthread_ prefix to
+ ptw32_ prefix to remove leading underscores
+ from private library identifiers (single
+ and double leading underscores are reserved in the
+ ANSI C standard for compiler implementations).
+
+ * tsd.c (pthread_create_key): Initialise temporary
+ key before returning it's address to avoid race
+ conditions.
+
+2000-08-13 Ross Johnson <rpj@special.ise.canberra.edu.au>
+
+ * errno.c: Add _MD precompile condition; thus far
+ had no effect when using /MD compile option but I
+ thnk it should be there.
+
+ * exit.c: Add __cplusplus to various #if lines;
+ was compiling SEH code even when VC++ had
+ C++ compile options.
+
+ * private.c: ditto.
+
+ * create.c (pthread_create): Add PT_STDCALL macro to
+ function pointer arg in _beginthread().
+
+ * pthread.h: PT_STDCALL really does need to be defined
+ in both this and impliment.h; don't set it to __cdecl
+ - this macro is only used to extend function pointer
+ casting for functions that will be passed as parameters.
+ (~PThreadCleanup): add cast and group expression.
+ (_errno): Add _MD compile conditional.
+ (PtW32NoCatchWarn): Change pragma message.
+
+ * implement.h: Move and change PT_STDCALL define.
+
+ * need_errno.h: Add _MD to compilation conditional.
+
+ * GNUmakefile: Substantial rewrite for new naming
+ convention; set for nil optimisation (turn it up
+ when we have a working library build; add target
+ "fake.a" to build a libpthreadw32.a from the VC++
+ built DLL pthreadVCE.dll.
+
+ * pthread.def (LIBRARY): Don't specify in the .def
+ file - it is specified on the linker command line
+ since we now use the same .def file for variously
+ named .dlls.
+
+ * Makefile: Substantial rewrite for new naming
+ convention; default nmake target only issues a
+ help message; run nmake with specific target
+ corresponding to the EH scheme being used.
+
+ * README: Update information; add naming convention
+ explanation.
+
+ * ANNOUNCE: Update information.
+
+2000-08-12 Ross Johnson <rpj@special.ise.canberra.edu.au>
+
+ * pthread.h: Add compile-time message when using
+ MSC_VER compiler and C++ EH to warn application
+ programmers to use PtW32Catch instead of catch(...)
+ if they want cancelation and pthread_exit to work.
+
+ * implement.h: Remove #include <semaphore.h>; we
+ use our own local semaphore.h.
+
+2000-08-10 Ross Johnson <rpj@special.ise.canberra.edu.au>
+
+ * cleanup.c (pthread_pop_cleanup): Remove _pthread
+ prefix from __except and catch keywords; implement.h
+ now simply undefines ptw32__except and
+ ptw32_catch if defined; VC++ was not textually
+ substituting ptw32_catch etc back to catch as
+ it was redefined; the reason for using the prefixed
+ version was to make it clear that it was not using
+ the pthread.h redefined catch keyword.
+
+ * private.c (ptw32_threadStart): Ditto.
+ (ptw32_callUserDestroyRoutines): Ditto.
+
+ * implement.h (ptw32__except): Remove #define.
+ (ptw32_catch): Remove #define.
+
+ * GNUmakefile (pthread.a): New target to build
+ libpthread32.a from pthread.dll using dlltool.
+
+ * buildlib.bat: Duplicate cl commands with args to
+ build C++ EH version of pthread.dll; use of .bat
+ files is redundant now that nmake compatible
+ Makefile is included; used as a kludge only now.
+
+ * Makefile: Localise some macros and fix up the clean:
+ target to extend it and work properly.
+
+ * CONTRIBUTORS: Add contributors.
+
+ * ANNOUNCE: Updated.
+
+ * README: Updated.
+
+2000-08-06 Ross Johnson <rpj@special.ise.canberra.edu.au>
+
+ * pthread.h: Remove #warning - VC++ doesn't accept it.
+
+2000-08-05 Ross Johnson <rpj@special.ise.canberra.edu.au>
+
+ * pthread.h (PtW32CatchAll): Add macro. When compiling
+ applications using VC++ with C++ EH rather than SEH
+ 'PtW32CatchAll' must be used in place of any 'catch( ... )'
+ if the application wants pthread cancelation or
+ pthread_exit() to work.
+
+2000-08-03 Ross Johnson <rpj@special.ise.canberra.edu.au>
+
+ * pthread.h: Add a base class ptw32_exception for
+ library internal exceptions and change the "catch"
+ re-define macro to use it.
+
+2000-08-02 Ross Johnson <rpj@special.ise.canberra.edu.au>
+
+ * GNUmakefile (CFLAGS): Add -mthreads.
+ Add new targets to generate cpp and asm output.
+
+ * sync.c (pthread_join): Remove dead code.
+
+2000-07-25 Tristan Savatier <tristan@mpegtv.com>
+
+ * sched.c (sched_get_priority_max): Handle different WinCE and
+ Win32 priority values together.
+ (sched_get_priority_min): Ditto.
+
+2000-07-25 Ross Johnson <rpj@special.ise.canberra.edu.au>
+
+ * create.c (pthread_create): Force new threads to wait until
+ pthread_create has the new thread's handle; we also retain
+ a local copy of the handle for internal use until
+ pthread_create returns.
+
+ * private.c (ptw32_threadStart): Initialise ei[].
+ (ptw32_threadStart): When beginthread is used to start the
+ thread, force waiting until the creator thread had the
+ thread handle.
+
+ * cancel.c (ptw32_cancel_thread): Include context switch
+ code for defined(_X86_) environments in addition to _M_IX86.
+
+ * rwlock.c (pthread_rwlock_destroy): Assignment changed
+ to avoid compiler warning.
+
+ * private.c (ptw32_get_exception_services_code): Cast
+ NULL return value to avoid compiler warning.
+
+ * cleanup.c (pthread_pop_cleanup): Initialise "cleanup" variable
+ to avoid compiler warnings.
+
+ * misc.c (ptw32_new): Change "new" variable to "t" to avoid
+ confusion with the C++ keyword of the same name.
+
+ * condvar.c (cond_wait_cleanup): Initialise lastWaiter variable.
+ (cond_timedwait): Remove unused local variables. to avoid
+ compiler warnings.
+
+ * dll.c (dllMain): Remove 2000-07-21 change - problem
+ appears to be in pthread_create().
+
+2000-07-22 Ross Johnson <rpj@special.ise.canberra.edu.au>
+
+ * tsd.c (pthread_key_create): If a destructor was given
+ and the pthread_mutex_init failed, then would try to
+ reference a NULL pointer (*key); eliminate this section of
+ code by using a dynamically initialised mutex
+ (PTHREAD_MUTEX_INITIALIZER).
+
+ * tsd.c (pthread_setspecific): Return an error if
+ unable to set the value; simplify cryptic conditional.
+
+ * tsd.c (pthread_key_delete): Locking threadsLock relied
+ on mutex_lock returning an error if the key has no destructor.
+ ThreadsLock is only initialised if the key has a destructor.
+ Making this mutex a static could reduce the number of mutexes
+ used by an application since it is actually created only at
+ first use and it's often destroyed soon after.
+
+2000-07-22 Ross Johnson <rpj@special.ise.canberra.edu.au>
+
+ * FAQ: Added Q5 and Q6.
+
+2000-07-21 David Baggett <dmb@itasoftware.com>
+
+ * dll.c: Include resource leakage work-around. This is a
+ partial FIXME which doesn't stop all leakage. The real
+ problem needs to be found and fixed.
+
+2000-07-21 Ross Johnson <rpj@setup1.ise.canberra.edu.au>
+
+ * create.c (pthread_create): Set threadH to 0 (zero)
+ everywhere. Some assignments were using NULL. Maybe
+ it should be NULL everywhere - need to check. (I know
+ they are nearly always the same thing - but not by
+ definition.)
+
+ * misc.c (pthread_self): Try to catch NULL thread handles
+ at the point where they might be generated, even though
+ they should always be valid at this point.
+
+ * tsd.c (pthread_setspecific): return an error value if
+ pthread_self() returns NULL.
+
+ * sync.c (pthread_join): return an error value if
+ pthread_self() returns NULL.
+
+ * signal.c (pthread_sigmask): return an error value if
+ pthread_self() returns NULL.
+
+2000-03-02 Ross Johnson <rpj@special.ise.canberra.edu.au>
+
+ * attr.c (pthread_attr_init): Set default stacksize to zero (0)
+ rather than PTHREAD_STACK_MIN even though these are now the same.
+
+ * pthread.h (PTHREAD_STACK_MIN): Lowered to 0.
+
+2000-01-28 Ross Johnson <rpj@special.ise.canberra.edu.au>
+
+ * mutex.c (pthread_mutex_init): Free mutex if it has been alloced;
+ if critical sections can be used instead of Win32 mutexes, test
+ that the critical section works and return an error if not.
+
+2000-01-07 Ross Johnson <rpj@special.ise.canberra.edu.au>
+
+ * cleanup.c (pthread_pop_cleanup): Include SEH code only if MSC is not
+ compiling as C++.
+ (pthread_push_cleanup): Include SEH code only if MSC is not
+ compiling as C++.
+
+ * pthread.h: Include SEH code only if MSC is not
+ compiling as C++.
+
+ * implement.h: Include SEH code only if MSC is not
+ compiling as C++.
+
+ * cancel.c (ptw32_cancel_thread): Add _M_IX86 check.
+ (pthread_testcancel): Include SEH code only if MSC is not
+ compiling as C++.
+ (ptw32_cancel_self): Include SEH code only if MSC is not
+ compiling as C++.
+
+2000-01-06 Erik Hensema <erik.hensema@group2000.nl>
+
+ * Makefile: Remove inconsistencies in 'cl' args
+
+2000-01-04 Ross Johnson <rpj@special.ise.canberra.edu.au>
+
+ * private.c (ptw32_get_exception_services_code): New; returns
+ value of EXCEPTION_PTW32_SERVICES.
+ (ptw32_processInitialize): Remove initialisation of
+ ptw32_exception_services which is no longer needed.
+
+ * pthread.h (ptw32_exception_services): Remove extern.
+ (ptw32_get_exception_services_code): Add function prototype;
+ use this to return EXCEPTION_PTW32_SERVICES value instead of
+ using the ptw32_exception_services variable which I had
+ trouble exporting through pthread.def.
+
+ * global.c (ptw32_exception_services): Remove declaration.
+
+1999-11-22 Ross Johnson <rpj@special.ise.canberra.edu.au>
+
+ * implement.h: Forward declare ptw32_new();
+
+ * misc.c (ptw32_new): New; alloc and initialise a new pthread_t.
+ (pthread_self): New thread struct is generated by new routine
+ ptw32_new().
+
+ * create.c (pthread_create): New thread struct is generated
+ by new routine ptw32_new().
+
+1999-11-21 Ross Johnson <rpj@special.ise.canberra.edu.au>
+
+ * global.c (ptw32_exception_services): Declare new variable.
+
+ * private.c (ptw32_threadStart): Destroy thread's
+ cancelLock mutex; make 'catch' and '__except' usageimmune to
+ redfinitions in pthread.h.
+ (ptw32_processInitialize): Init new constant ptw32_exception_services.
+
+ * create.c (pthread_create): Initialise thread's cancelLock
+ mutex.
+
+ * cleanup.c (pthread_pop_cleanup): Make 'catch' and '__except'
+ usage immune to redfinition s in pthread.h.
+
+ * private.c: Ditto.
+
+ * pthread.h (catch): Redefine 'catch' so that C++ applications
+ won't catch our internal exceptions.
+ (__except): ditto for __except.
+
+ * implement.h (ptw32_catch): Define internal version
+ of 'catch' because 'catch' is redefined by pthread.h.
+ (__except): ditto for __except.
+ (struct pthread_t_): Add cancelLock mutex for async cancel
+ safety.
+
+1999-11-21 Jason Nye <jnye@nbnet.nb.ca>, Erik Hensema <erik.hensema@group2000.nl>
+
+ * cancel.c (ptw32_cancel_self): New; part of the async
+ cancellation implementation.
+ (ptw32_cancel_thread): Ditto; this function is X86
+ processor specific.
+ (pthread_setcancelstate): Add check for pending async
+ cancel request and cancel the calling thread if
+ required; add async-cancel safety lock.
+ (pthread_setcanceltype): Ditto.
+
+1999-11-13 Erik Hensema <erik.hensema@group2000.nl>
+
+ * configure.in (AC_OUTPUT): Put generated output into GNUmakefile
+ rather than Makefile. Makefile will become the MSC nmake compatible
+ version
+
+1999-11-13 John Bossom (John.Bossom@cognos.com>
+
+ * misc.c (pthread_self): Add a note about GetCurrentThread
+ returning a pseudo-handle
+
+1999-11-10 Todd Owen <towen@lucidcalm.dropbear.id.au>
+
+ * dll.c (dllMain): Free kernel32 ASAP.
+ If TryEnterCriticalSection is not being used, then free
+ the kernel32.dll handle now, rather than leaving it until
+ DLL_PROCESS_DETACH.
+
+ Note: this is not a pedantic exercise in freeing unused
+ resources! It is a work-around for a bug in Windows 95
+ (see microsoft knowledge base article, Q187684) which
+ does Bad Things when FreeLibrary is called within
+ the DLL_PROCESS_DETACH code, in certain situations.
+ Since w95 just happens to be a platform which does not
+ provide TryEnterCriticalSection, the bug will be
+ effortlessly avoided.
+
+1999-11-10 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
+
+ * sync.c (pthread_join): Make it a deferred cancelation point.
+
+ * misc.c (pthread_self): Explicitly initialise implicitly
+ created thread state to default values.
+
+1999-11-05 Tristan Savatier <tristan@mpegtv.com>
+
+ * pthread.h (winsock.h): Include unconditionally.
+ (ETIMEDOUT): Change fallback value to that defined by winsock.h.
+
+ * general: Patched for portability to WinCE. The details are
+ described in the file WinCE-PORT. Follow the instructions
+ in README.WinCE to make the appropriate changes in config.h.
+
+1999-10-30 Erik Hensema <erik.hensema@group2000.nl>
+
+ * create.c (pthread_create): Explicitly initialise thread state to
+ default values.
+
+ * cancel.c (pthread_setcancelstate): Check for NULL 'oldstate'
+ for compatibility with Solaris pthreads;
+ (pthread_setcanceltype): ditto:
+
+1999-10-23 Erik Hensema <erik.hensema@group2000.nl>
+
+ * pthread.h (ctime_r): Fix incorrect argument "_tm"
+
+1999-10-21 Aurelio Medina <aureliom@crt.com>
+
+ * pthread.h (_POSIX_THREADS): Only define it if it isn't
+ already defined. Projects may need to define this on
+ the CC command line under Win32 as it doesn't have unistd.h
+
+1999-10-17 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
+
+ * rwlock.c (pthread_rwlock_destroy): Add cast to remove compile
+ warning.
+
+ * condvar.c (pthread_cond_broadcast): Only release semaphores
+ if there are waiting threads.
+
+1999-10-15 Lorin Hochstein <lmh@xiphos.ca>, Peter Slacik <Peter.Slacik@tatramed.sk>
+
+ * condvar.c (cond_wait_cleanup): New static cleanup handler for
+ cond_timedwait;
+ (cond_timedwait): pthread_cleanup_push args changed;
+ canceling a thread while it's in pthread_cond_wait
+ will now decrement the waiters count and cleanup if it's the
+ last waiter.
+
+1999-10-15 Graham Dumpleton <Graham.Dumpleton@ra.pad.otc.telstra.com.au>
+
+ * condvar.c (cond_wait_cleanup): the last waiter will now reset the CV's
+ wasBroadcast flag
+
+Thu Sep 16 1999 Ross Johnson <rpj@swan.canberra.edu.au>
+
+ * rwlock.c (pthread_rwlock_destroy): Add serialisation.
+ (_rwlock_check_need_init): Check for detroyed rwlock.
+ * rwlock.c: Check return codes from _rwlock_check_need_init();
+ modify comments; serialise access to rwlock objects during
+ operations; rename rw_mutex to rw_lock.
+ * implement.h: Rename rw_mutex to rw_lock.
+ * mutex.c (pthread_mutex_destroy): Add serialisation.
+ (_mutex_check_need_init): Check for detroyed mutex.
+ * condvar.c (pthread_cond_destroy): Add serialisation.
+ (_cond_check_need_init): Check for detroyed condvar.
+ * mutex.c: Modify comments.
+ * condvar.c: Modify comments.
+
+1999-08-10 Aurelio Medina <aureliom@crt.com>
+
+ * implement.h (pthread_rwlock_t_): Add.
+ * pthread.h (pthread_rwlock_t): Add.
+ (PTHREAD_RWLOCK_INITIALIZER): Add.
+ Add rwlock function prototypes.
+ * rwlock.c: New module.
+ * pthread.def: Add new rwlock functions.
+ * private.c (ptw32_processInitialize): initialise
+ ptw32_rwlock_test_init_lock critical section.
+ * global.c (ptw32_rwlock_test_init_lock): Add.
+
+ * mutex.c (pthread_mutex_destroy): Don't free mutex memory
+ if mutex is PTHREAD_MUTEX_INITIALIZER and has not been
+ initialised yet.
+
+1999-08-08 Milan Gardian <mg@tatramed.sk>
+
+ * mutex.c (pthread_mutex_destroy): Free mutex memory.
+
+1999-08-22 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
+
+ * exit.c (pthread_exit): Fix reference to potentially
+ uninitialised pointer.
+
+1999-08-21 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
+
+ * private.c (ptw32_threadStart): Apply fix of 1999-08-19
+ this time to C++ and non-trapped C versions. Ommitted to
+ do this the first time through.
+
+1999-08-19 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
+
+ * private.c (ptw32_threadStart): Return exit status from
+ the application thread startup routine.
+ - Milan Gardian <mg@tatramed.sk>
+
+1999-08-18 John Bossom <john.Bossom@cognos.com>
+
+ * exit.c (pthread_exit): Put status into pthread_t->exitStatus
+ * private.c (ptw32_threadStart): Set pthread->exitStatus
+ on exit of try{} block.
+ * sync.c (pthread_join): use pthread_exitStatus value if the
+ thread exit doesn't return a value (for Mingw32 CRTDLL
+ which uses endthread instead of _endthreadex).
+
+Tue Aug 17 20:17:58 CDT 1999 Mumit Khan <khan@xraylith.wisc.edu>
+
+ * create.c (pthread_create): Add CRTDLL suppport.
+ * exit.c (pthread_exit): Likewise.
+ * private.c (ptw32_threadStart): Likewise.
+ (ptw32_threadDestroy): Likewise.
+ * sync.c (pthread_join): Likewise.
+ * tests/join1.c (main): Warn about partial support for CRTDLL.
+
+Tue Aug 17 20:00:08 1999 Mumit Khan <khan@xraylith.wisc.edu>
+
+ * Makefile.in (LD): Delete entry point.
+ * acconfig.h (STDCALL): Delete unused macro.
+ * configure.in: Remove test for STDCALL.
+ * config.h.in: Regenerate.
+ * errno.c (_errno): Fix self type.
+ * pthread.h (PT_STDCALL): Move from here to
+ * implement.h (PT_STDCALL): here.
+ (ptw32_threadStart): Fix prototype.
+ * private.c (ptw32_threadStart): Likewise.
+
+1999-08-14 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
+
+ * exit.c (pthread_exit): Don't call pthread_self() but
+ get thread handle directly from TSD for efficiency.
+
+1999-08-12 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
+
+ * private.c (ptw32_threadStart): ei[] only declared if _MSC_VER.
+
+ * exit.c (pthread_exit): Check for implicitly created threads
+ to avoid raising an unhandled exception.
+
+1999-07-12 Peter Slacik <Peter.Slacik@tatramed.sk>
+
+ * condvar.c (pthread_cond_destroy): Add critical section.
+ (cond_timedwait): Add critical section; check for timeout
+ waiting on semaphore.
+ (pthread_cond_broadcast): Add critical section.
+
+1999-07-09 Lorin Hochstein <lmh@xiphos.ca>, John Bossom <John.Bossom@Cognos.COM>
+
+ The problem was that cleanup handlers were not executed when
+ pthread_exit() was called.
+
+ * implement.h (pthread_t_): Add exceptionInformation element for
+ C++ per-thread exception information.
+ (general): Define and rename exceptions.
+
+1999-07-09 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
+
+ * misc.c (CancelableWait): PTW32_EPS_CANCEL (SEH) and
+ ptw32_exception_cancel (C++) used to identify the exception.
+
+ * cancel.c (pthread_testcancel): PTW32_EPS_CANCEL (SEH) and
+ ptw32_exception_cancel (C++) used to identify the exception.
+
+ * exit.c (pthread_exit): throw/raise an exception to return to
+ ptw32_threadStart() to exit the thread. PTW32_EPS_EXIT (SEH)
+ and ptw32_exception_exit (C++) used to identify the exception.
+
+ * private.c (ptw32_threadStart): Add pthread_exit exception trap;
+ clean up and exit the thread directly rather than via pthread_exit().
+
+Sun May 30 00:25:02 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
+
+ * semaphore.h (mode_t): Conditionally typedef it.
+
+Fri May 28 13:33:05 1999 Mark E. Armstrong <avail@pacbell.net>
+
+ * condvar.c (pthread_cond_broadcast): Fix possible memory fault
+
+Thu May 27 13:08:46 1999 Peter Slacik <Peter.Slacik@tatramed.sk>
+
+ * condvar.c (pthread_cond_broadcast): Fix logic bug
+
+Thu May 27 13:08:46 1999 Bossom, John <John.Bossom@Cognos.COM>
+
+ * condvar.c (pthread_cond_broadcast): optimise sem_post loop
+
+Fri May 14 12:13:18 1999 Mike Russo <miker@eai.com>
+
+ * attr.c (pthread_attr_setdetachstate): Fix logic bug
+
+Sat May 8 09:42:30 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
+
+ * pthread.def (sem_open): Add.
+ (sem_close): Add.
+ (sem_unlink): Add.
+ (sem_getvalue): Add.
+
+ * FAQ (Question 3): Add.
+
+Thu Apr 8 01:16:23 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
+
+ * semaphore.c (sem_open): New function; returns an error (ENOSYS).
+ (sem_close): ditto.
+ (sem_unlink): ditto.
+ (sem_getvalue): ditto.
+
+ * semaphore.h (_POSIX_SEMAPHORES): define.
+
+Wed Apr 7 14:09:52 1999 Ross Johnson <rpj@swan.canberra.edu.au>
+
+ * errno.c (_REENTRANT || _MT): Invert condition.
+
+ * pthread.h (_errno): Conditionally include prototype.
+
+Wed Apr 7 09:37:00 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
+
+ * *.c (comments): Remove individual attributions - these are
+ documented sufficiently elsewhere.
+
+ * implement.h (pthread.h): Remove extraneous include.
+
+Sun Apr 4 11:05:57 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
+
+ * sched.c (sched.h): Include.
+
+ * sched.h: New file for POSIX 1b scheduling.
+
+ * pthread.h: Move opaque structures to implement.h; move sched_*
+ prototypes out and into sched.h.
+
+ * implement.h: Add opaque structures from pthread.h.
+
+ * sched.c (sched_yield): New function.
+
+ * condvar.c (ptw32_sem_*): Rename to sem_*; except for
+ ptw32_sem_timedwait which is an private function.
+
+Sat Apr 3 23:28:00 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
+
+ * Makefile.in (OBJS): Add errno.o.
+
+Fri Apr 2 11:08:50 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
+
+ * implement.h (ptw32_sem_*): Remove prototypes now defined in
+ semaphore.h.
+
+ * pthread.h (sempahore.h): Include.
+
+ * semaphore.h: New file for POSIX 1b semaphores.
+
+ * semaphore.c (ptw32_sem_timedwait): Moved to private.c.
+
+ * pthread.h (ptw32_sem_t): Change to sem_t.
+
+ * private.c (ptw32_sem_timedwait): Moved from semaphore.c;
+ set errno on error.
+
+ * pthread.h (pthread_t_): Add per-thread errno element.
+
+Fri Apr 2 11:08:50 1999 John Bossom <jebossom@cognos.com>
+
+ * semaphore.c (ptw32_sem_*): Change to sem_*; these functions
+ will be exported from the library; set errno on error.
+
+ * errno.c (_errno): New file. New function.
+
+Fri Mar 26 14:11:45 1999 Tor Lillqvist <tml@iki.fi>
+
+ * semaphore.c (ptw32_sem_timedwait): Check for negative
+ milliseconds.
+
+Wed Mar 24 11:32:07 1999 John Bossom <jebossom@cognos.com>
+
+ * misc.c (CancelableWait): Initialise exceptionInformation[2].
+ (pthread_self): Get a real Win32 thread handle for implicit threads.
+
+ * cancel.c (pthread_testcancel): Initialise exceptionInformation[2].
+
+ * implement.h (SE_INFORMATION): Fix values.
+
+ * private.c (ptw32_threadDestroy): Close the thread handle.
+
+Fri Mar 19 12:57:27 1999 Ross Johnson <rpj@swan.canberra.edu.au>
+
+ * cancel.c (comments): Update and cleanup.
+
+Fri Mar 19 09:12:59 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
+
+ * private.c (ptw32_threadStart): status returns PTHREAD_CANCELED.
+
+ * pthread.h (PTHREAD_CANCELED): defined.
+
+Tue Mar 16 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
+
+ * all: Add GNU LGPL and Copyright and Warranty.
+
+Mon Mar 15 00:20:13 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
+
+ * condvar.c (pthread_cond_init): fix possible uninitialised use
+ of cv.
+
+Sun Mar 14 21:01:59 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
+
+ * condvar.c (pthread_cond_destroy): don't do full cleanup if
+ static initialised cv has never been used.
+ (cond_timedwait): check result of auto-initialisation.
+
+Thu Mar 11 09:01:48 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
+
+ * pthread.h (pthread_mutex_t): revert to (pthread_mutex_t *);
+ define a value to serve as PTHREAD_MUTEX_INITIALIZER.
+ (pthread_mutex_t_): remove staticinit and valid elements.
+ (pthread_cond_t): revert to (pthread_cond_t_ *);
+ define a value to serve as PTHREAD_COND_INITIALIZER.
+ (pthread_cond_t_): remove staticinit and valid elements.
+
+ * mutex.c (pthread_mutex_t args): adjust indirection of references.
+ (all functions): check for PTHREAD_MUTEX_INITIALIZER value;
+ check for NULL (invalid).
+
+ * condvar.c (pthread_cond_t args): adjust indirection of references.
+ (all functions): check for PTHREAD_COND_INITIALIZER value;
+ check for NULL (invalid).
+
+Wed Mar 10 17:18:12 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
+
+ * misc.c (CancelableWait): Undo changes from Mar 8 and 7.
+
+Mon Mar 8 11:18:59 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
+
+ * misc.c (CancelableWait): Ensure cancelEvent handle is the lowest
+ indexed element in the handles array. Enhance test for abandoned
+ objects.
+
+ * pthread.h (PTHREAD_MUTEX_INITIALIZER): Trailing elements not
+ initialised are set to zero by the compiler. This avoids the
+ problem of initialising the opaque critical section element in it.
+ (PTHREAD_COND_INITIALIZER): Ditto.
+
+ * semaphore.c (ptw32_sem_timedwait): Check sem == NULL earlier.
+
+Sun Mar 7 12:31:14 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
+
+ * condvar.c (pthread_cond_init): set semaphore initial value
+ to 0, not 1. cond_timedwait was returning signaled immediately.
+
+ * misc.c (CancelableWait): Place the cancel event handle first
+ in the handle table for WaitForMultipleObjects. This ensures that
+ the cancel event is recognised and acted apon if both objects
+ happen to be signaled together.
+
+ * private.c (ptw32_cond_test_init_lock): Initialise and destroy.
+
+ * implement.h (ptw32_cond_test_init_lock): Add extern.
+
+ * global.c (ptw32_cond_test_init_lock): Add declaration.
+
+ * condvar.c (pthread_cond_destroy): check for valid initialised CV;
+ flag destroyed CVs as invalid.
+ (pthread_cond_init): pthread_cond_t is no longer just a pointer.
+ This is because PTHREAD_COND_INITIALIZER needs state info to reside
+ in pthread_cond_t so that it can initialise on first use. Will work on
+ making pthread_cond_t (and other objects like it) opaque again, if
+ possible, later.
+ (cond_timedwait): add check for statically initialisation of
+ CV; initialise on first use.
+ (pthread_cond_signal): check for valid CV.
+ (pthread_cond_broadcast): check for valid CV.
+ (_cond_check_need_init): Add.
+
+ * pthread.h (PTHREAD_COND_INITIALIZER): Fix.
+ (pthread_cond_t): no longer a pointer to pthread_cond_t_.
+ (pthread_cond_t_): add 'staticinit' and 'valid' elements.
+
+Sat Mar 6 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
+
+ * implement.h: Undate comments.
+
+Sun Feb 21 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
+
+ * pthread.h (PTHREAD_MUTEX_INITIALIZER): missing braces around
+ cs element initialiser.
+
+1999-02-21 Ben Elliston <bje@cygnus.com>
+
+ * pthread.h (pthread_exit): The return type of this function is
+ void, not int.
+
+ * exit.c (pthread_exit): Do not return 0.
+
+Sat Feb 20 16:03:30 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
+
+ * dll.c (DLLMain): Expand TryEnterCriticalSection support test.
+
+ * mutex.c (pthread_mutex_trylock): The check for
+ ptw32_try_enter_critical_section == NULL should have been
+ removed long ago.
+
+Fri Feb 19 16:03:30 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
+
+ * sync.c (pthread_join): Fix pthread_equal() test.
+
+ * mutex.c (pthread_mutex_trylock): Check mutex != NULL before
+ using it.
+
+Thu Feb 18 16:17:30 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
+
+ * misc.c (pthread_equal): Fix inverted result.
+
+ * Makefile.in: Use libpthread32.a as the name of the DLL export
+ library instead of pthread.lib.
+
+ * condvar.c (pthread_cond_init): cv could have been used unitialised;
+ initialise.
+
+ * create.c (pthread_create): parms could have been used unitialised;
+ initialise.
+
+ * pthread.h (struct pthread_once_t_): Remove redefinition.
+
+Sat Feb 13 03:03:30 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
+
+ * pthread.h (struct pthread_once_t_): Replaced.
+
+ * misc.c (pthread_once): Replace with John Bossom's version;
+ has lighter weight serialisation; fixes problem of not holding
+ competing threads until after the init_routine completes.
+
+Thu Feb 11 13:34:14 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
+
+ * misc.c (CancelableWait): Change C++ exception throw.
+
+ * sync.c (pthread_join): Change FIXME comment - issue resolved.
+
+Wed Feb 10 12:49:11 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
+
+ * configure: Various temporary changes.
+ - Kevin Ruland <Kevin.Ruland@anheuser-busch.com>
+
+ * README: Update.
+
+ * pthread.def (pthread_attr_getstackaddr): uncomment
+ (pthread_attr_setstackaddr): uncomment
+
+Fri Feb 5 13:42:30 1999 Ross Johnson <rpj@swan.canberra.edu.au>
+
+ * semaphore.c: Comment format changes.
+
+Thu Feb 4 10:07:28 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
+
+ * global.c: Remove ptw32_exception instantiation.
+
+ * cancel.c (pthread_testcancel): Change C++ exception throw.
+
+ * implement.h: Remove extern declaration.
+
+Wed Feb 3 13:04:44 1999 Ross Johnson <rpj@swan.canberra.edu.au>
+
+ * cleanup.c: Rename ptw32_*_cleanup() to pthread_*_cleanup().
+
+ * pthread.def: Ditto.
+
+ * pthread.h: Ditto.
+
+ * pthread.def (pthread_cleanup_push): Remove from export list;
+ the function is defined as a macro under all compilers.
+ (pthread_cleanup_pop): Ditto.
+
+ * pthread.h: Remove #if defined().
+
+Wed Feb 3 10:13:48 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
+
+ * sync.c (pthread_join): Check for NULL value_ptr arg;
+ check for detached threads.
+
+Tue Feb 2 18:07:43 1999 Ross Johnson <rpj@swan.canberra.edu.au>
+
+ * implement.h: Add #include <pthread.h>.
+ Change sem_t to ptw32_sem_t.
+
+Tue Feb 2 18:07:43 1999 Kevin Ruland <Kevin.Ruland@anheuser-busch.com>
+
+ * signal.c (pthread_sigmask): Add and modify casts.
+ Reverse LHS/RHS bitwise assignments.
+
+ * pthread.h: Remove #include <semaphore.h>.
+ (PTW32_ATTR_VALID): Add cast.
+ (struct pthread_t_): Add sigmask element.
+
+ * dll.c: Add "extern C" for DLLMain.
+ (DllMain): Add cast.
+
+ * create.c (pthread_create): Set sigmask in thread.
+
+ * condvar.c: Remove #include. Change sem_* to ptw32_sem_*.
+
+ * attr.c: Changed #include.
+
+ * Makefile.in: Additional targets and changes to build the library
+ as a DLL.
+
+Fri Jan 29 11:56:28 1999 Ross Johnson <rpj@swan.canberra.edu.au>
+
+ * Makefile.in (OBJS): Add semaphore.o to list.
+
+ * semaphore.c (ptw32_sem_timedwait): Move from private.c.
+ Rename sem_* to ptw32_sem_*.
+
+ * pthread.h (pthread_cond_t): Change type of sem_t.
+ _POSIX_SEMAPHORES no longer defined.
+
+ * semaphore.h: Contents moved to implement.h.
+ Removed from source tree.
+
+ * implement.h: Add semaphore function prototypes and rename all
+ functions to prepend 'ptw32_'. They are
+ now private to the pthreads-win32 implementation.
+
+ * private.c: Change #warning.
+ Move ptw32_sem_timedwait() to semaphore.c.
+
+ * cleanup.c: Change #warning.
+
+ * misc.c: Remove #include <errno.h>
+
+ * pthread.def: Cleanup CVS merge conflicts.
+
+ * global.c: Ditto.
+
+ * ChangeLog: Ditto.
+
+ * cleanup.c: Ditto.
+
+Sun Jan 24 01:34:52 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
+
+ * semaphore.c (sem_wait): Remove second arg to
+ pthreadCancelableWait() call.
+
+Sat Jan 23 17:36:40 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
+
+ * pthread.def: Add new functions to export list.
+
+ * pthread.h (PTHREAD_MUTEX_AUTO_CS_NP): New.
+ (PTHREAD_MUTEX_FORCE_CS_NP): New.
+
+ * README: Updated.
+
+Fri Jan 22 14:31:59 1999 Ross Johnson <rpj@swan.canberra.edu.au>
+
+ * Makefile.in (CFLAGS): Remove -fhandle-exceptions. Not needed
+ with egcs. Add -g for debugging.
+
+ * create.c (pthread_create): Replace __stdcall with PT_STDCALL
+ macro. This is a hack and must be fixed.
+
+ * misc.c (CancelableWait): Remove redundant statement.
+
+ * mutex.c (pthread_mutexattr_init): Cast calloc return value.
+
+ * misc.c (CancelableWait): Add cast.
+ (pthread_self): Add cast.
+
+ * exit.c (pthread_exit): Add cast.
+
+ * condvar.c (pthread_condattr_init): Cast calloc return value.
+
+ * cleanup.c: Reorganise conditional compilation.
+
+ * attr.c (pthread_attr_init): Remove unused 'result'.
+ Cast malloc return value.
+
+ * private.c (ptw32_callUserDestroyRoutines): Redo conditional
+ compilation.
+
+ * misc.c (CancelableWait): C++ version uses 'throw'.
+
+ * cancel.c (pthread_testcancel): Ditto.
+
+ * implement.h (class ptw32_exception): Define for C++.
+
+ * pthread.h: Fix C, C++, and Win32 SEH condition compilation
+ mayhem around pthread_cleanup_* defines. C++ version now uses John
+ Bossom's cleanup handlers.
+ (pthread_attr_t): Make 'valid' unsigned.
+ Define '_timeb' as 'timeb' for Ming32.
+ Define PT_STDCALL as nothing for Mingw32. May be temporary.
+
+ * cancel.c (pthread_testcancel): Cast return value.
+
+Wed Jan 20 09:31:28 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
+
+ * pthread.h (pthread_mutexattr_t): Changed to a pointer.
+
+ * mutex.c (pthread_mutex_init): Conditionally create Win32 mutex
+ - from John Bossom's implementation.
+ (pthread_mutex_destroy): Conditionally close Win32 mutex
+ - from John Bossom's implementation.
+ (pthread_mutexattr_init): Replaced by John Bossom's version.
+ (pthread_mutexattr_destroy): Ditto.
+ (pthread_mutexattr_getpshared): New function from John Bossom's
+ implementation.
+ (pthread_mutexattr_setpshared): New function from John Bossom's
+ implementation.
+
+Tue Jan 19 18:27:42 1999 Ross Johnson <rpj@swan.canberra.edu.au>
+
+ * pthread.h (pthreadCancelableTimedWait): New prototype.
+ (pthreadCancelableWait): Remove second argument.
+
+ * misc.c (CancelableWait): New static function is
+ pthreadCancelableWait() renamed.
+ (pthreadCancelableWait): Now just calls CancelableWait() with
+ INFINITE timeout.
+ (pthreadCancelableTimedWait): Just calls CancelableWait()
+ with passed in timeout.
+
+Tue Jan 19 18:27:42 1999 Scott Lightner <scott@curriculum.com>
+
+ * private.c (ptw32_sem_timedwait): 'abstime' arg really is
+ absolute time. Calculate relative time to wait from current
+ time before passing timeout to new routine
+ pthreadCancelableTimedWait().
+
+Tue Jan 19 10:27:39 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
+
+ * pthread.h (pthread_mutexattr_setforcecs_np): New prototype.
+
+ * mutex.c (pthread_mutexattr_init): Init 'pshared' and 'forcecs'
+ attributes to 0.
+ (pthread_mutexattr_setforcecs_np): New function (not portable).
+
+ * pthread.h (pthread_mutex_t):
+ Add 'mutex' element. Set to NULL in PTHREAD_MUTEX_INITIALIZER.
+ The pthread_mutex_*() routines will try to optimise performance
+ by choosing either mutexes or critical sections as the basis
+ for pthread mutexes for each indevidual mutex.
+ (pthread_mutexattr_t_): Add 'forcecs' element.
+ Some applications may choose to force use of critical sections
+ if they know that:-
+ the mutex is PROCESS_PRIVATE and,
+ either the OS supports TryEnterCriticalSection() or
+ pthread_mutex_trylock() will never be called on the mutex.
+ This attribute will be setable via a non-portable routine.
+
+ Note: We don't yet support PROCESS_SHARED mutexes, so the
+ implementation as it stands will default to Win32 mutexes only if
+ the OS doesn't support TryEnterCriticalSection. On Win9x, and early
+ versions of NT 'forcecs' will need to be set in order to get
+ critical section based mutexes.
+
+Sun Jan 17 12:01:26 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
+
+ * pthread.h (PTHREAD_MUTEX_INITIALIZER): Init new 'staticinit'
+ value to '1' and existing 'valid' value to '1'.
+
+ * global.c (ptw32_mutex_test_init_lock): Add.
+
+ * implement.h (ptw32_mutex_test_init_lock.): Add extern.
+
+ * private.c (ptw32_processInitialize): Init critical section for
+ global lock used by _mutex_check_need_init().
+ (ptw32_processTerminate): Ditto (:s/Init/Destroy/).
+
+ * dll.c (dllMain): Move call to FreeLibrary() so that it is only
+ called once when the process detaches.
+
+ * mutex.c (_mutex_check_need_init): New static function to test
+ and init PTHREAD_MUTEX_INITIALIZER mutexes. Provides serialised
+ access to the internal state of the uninitialised static mutex.
+ Called from pthread_mutex_trylock() and pthread_mutex_lock() which
+ do a quick unguarded test to check if _mutex_check_need_init()
+ needs to be called. This is safe as the test is conservative
+ and is repeated inside the guarded section of
+ _mutex_check_need_init(). Thus in all calls except the first
+ calls to lock static mutexes, the additional overhead to lock any
+ mutex is a single memory fetch and test for zero.
+
+ * pthread.h (pthread_mutex_t_): Add 'staticinit' member. Mutexes
+ initialised by PTHREAD_MUTEX_INITIALIZER aren't really initialised
+ until the first attempt to lock it. Using the 'valid'
+ flag (which flags the mutex as destroyed or not) to record this
+ information would be messy. It is possible for a statically
+ initialised mutex such as this to be destroyed before ever being
+ used.
+
+ * mutex.c (pthread_mutex_trylock): Call _mutex_check_need_init()
+ to test/init PTHREAD_MUTEX_INITIALIZER mutexes.
+ (pthread_mutex_lock): Ditto.
+ (pthread_mutex_unlock): Add check to ensure we don't try to unlock
+ an unitialised static mutex.
+ (pthread_mutex_destroy): Add check to ensure we don't try to delete
+ a critical section that we never created. Allows us to destroy
+ a static mutex that has never been locked (and hence initialised).
+ (pthread_mutex_init): Set 'staticinit' flag to 0 for the new mutex.
+
+Sun Jan 17 12:01:26 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
+
+ * private.c (ptw32_sem_timedwait): Move from semaphore.c.
+
+ * semaphore.c : Remove redundant #includes.
+ (ptw32_sem_timedwait): Move to private.c.
+ (sem_wait): Add missing abstime arg to pthreadCancelableWait() call.
+
+Fri Jan 15 23:38:05 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
+
+ * condvar.c (cond_timedwait): Remove comment.
+
+Fri Jan 15 15:41:28 1999 Ross Johnson <rpj@swan.canberra.edu.au>
+
+ * pthread.h: Add new 'abstime' arg to pthreadCancelableWait()
+ prototype.
+
+ * condvar.c (cond_timedwait): New generalised function called by
+ both pthread_cond_wait() and pthread_cond_timedwait(). This is
+ essentially pthread_cond_wait() renamed and modified to add the
+ 'abstime' arg and call the new ptw32_sem_timedwait() instead of
+ sem_wait().
+ (pthread_cond_wait): Now just calls the internal static
+ function cond_timedwait() with an INFINITE wait.
+ (pthread_cond_timedwait): Now implemented. Calls the internal
+ static function cond_timedwait().
+
+ * implement.h (ptw32_sem_timedwait): New internal function
+ prototype.
+
+ * misc.c (pthreadCancelableWait): Added new 'abstime' argument
+ to allow shorter than INFINITE wait.
+
+ * semaphore.c (ptw32_sem_timedwait): New function for internal
+ use. This is essentially sem_wait() modified to add the
+ 'abstime' arg and call the modified (see above)
+ pthreadCancelableWait().
+
+Thu Jan 14 14:27:13 1999 Ross Johnson <rpj@swan.canberra.edu.au>
+
+ * cleanup.c: Correct _cplusplus to __cplusplus wherever used.
+
+ * Makefile.in: Add CC=g++ and add -fhandle-exceptions to CFLAGS.
+ The derived Makefile will compile all units of the package as C++
+ so that those which include try/catch exception handling should work
+ properly. The package should compile ok if CC=gcc, however, exception
+ handling will not be included and thus thread cancellation, for
+ example, will not work.
+
+ * cleanup.c (ptw32_pop_cleanup): Add #warning to compile this
+ file as C++ if using a cygwin32 environment. Perhaps the whole package
+ should be compiled using g++ under cygwin.
+
+ * private.c (ptw32_threadStart): Change #error directive
+ into #warning and bracket for __CYGWIN__ and derivative compilers.
+
+Wed Jan 13 09:34:52 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
+
+ * build.bat: Delete old binaries before compiling/linking.
+
+Tue Jan 12 09:58:38 1999 Tor Lillqvist <tml@iki.fi>
+
+ * dll.c: The Microsoft compiler pragmas probably are more
+ appropriately protected by _MSC_VER than by _WIN32.
+
+ * pthread.h: Define ETIMEDOUT. This should be returned by
+ pthread_cond_timedwait which is not implemented yet as of
+ snapshot-1999-01-04-1305. It was implemented in the older version.
+ The Microsoft compiler pragmas probably are more appropriately
+ protected by _MSC_VER than by _WIN32.
+
+ * pthread.def: pthread_mutex_destroy was missing from the def file
+
+ * condvar.c (pthread_cond_broadcast): Ensure we only wait on threads
+ if there were any waiting on the condition.
+ I think pthread_cond_broadcast should do the WaitForSingleObject
+ only if cv->waiters > 0? Otherwise it seems to hang, at least in the
+ testg thread program from glib.
+
+Tue Jan 12 09:58:38 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
+
+ * condvar.c (pthread_cond_timedwait): Fix function description
+ comments.
+
+ * semaphore.c (sem_post): Correct typo in comment.
+
+Mon Jan 11 20:33:19 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
+
+ * pthread.h: Re-arrange conditional compile of pthread_cleanup-*
+ macros.
+
+ * cleanup.c (ptw32_push_cleanup): Provide conditional
+ compile of cleanup->prev.
+
+1999-01-11 Tor Lillqvist <tml@iki.fi>
+
+ * condvar.c (pthread_cond_init): Invert logic when testing the
+ return value from calloc().
+
+Sat Jan 9 14:32:08 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
+
+ * implement.h: Compile-time switch for CYGWIN derived environments
+ to use CreateThread instead of _beginthreadex. Ditto for ExitThread.
+ Patch provided by Anders Norlander <anorland@hem2.passagen.se>.
+
+Tue Jan 5 16:33:04 1999 Ross Johnson <rpj@swan.canberra.edu.au>
+
+ * cleanup.c (ptw32_pop_cleanup): Add C++ version of __try/__except
+ block. Move trailing "}" out of #ifdef _WIN32 block left there by
+ (rpj's) mistake.
+
+ * private.c: Remove #include <errno.h> which is included by pthread.h.
+
+1998-12-11 Ben Elliston <bje@toilet.to.cygnus.com>
+
+ * README: Update info about subscribing to the mailing list.
+
+Mon Jan 4 11:23:40 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
+
+ * all: No code changes, just cleanup.
+ - remove #if 0 /* Pre Bossom */ enclosed code.
+ - Remove some redundant #includes.
+ * pthread.h: Update implemented/unimplemented routines list.
+ * Tag the bossom merge branch getting ready to merge back to main
+ trunk.
+
+Tue Dec 29 13:11:16 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
+
+ * implement.h: Move the following struct definitions to pthread.h:
+ pthread_t_, pthread_attr_t_, pthread_mutex_t_, pthread_mutex_t_,
+ pthread_mutexattr_t_, pthread_key_t_, pthread_cond_t_,
+ pthread_condattr_t_, pthread_once_t_.
+
+ * pthread.h: Add "_" prefix to pthread_push_cleanup and
+ pthread_pop_cleanup internal routines, and associated struct and
+ typedefs.
+
+ * buildlib.bat: Add compile command for semaphore.c
+
+ * pthread.def: Comment out pthread_atfork routine name.
+ Now unimplemented.
+
+ * tsd.c (pthread_setspecific): Rename tkAssocCreate to
+ ptw32_tkAssocCreate.
+ (pthread_key_delete): Rename tkAssocDestroy to
+ ptw32_tkAssocDestroy.
+
+ * sync.c (pthread_join): Rename threadDestroy to ptw32_threadDestroy
+
+ * sched.c (is_attr): attr is now **attr (was *attr), so add extra
+ NULL pointer test.
+ (pthread_attr_setschedparam): Increase redirection for attr which is
+ now a **.
+ (pthread_attr_getschedparam): Ditto.
+ (pthread_setschedparam): Change thread validation and rename "thread"
+ Win32 thread Handle element name to match John Bossom's version.
+ (pthread_getschedparam): Ditto.
+
+ * private.c (ptw32_threadDestroy): Rename call to
+ callUserDestroyRoutines() as ptw32_callUserDestroyRoutines()
+
+ * misc.c: Add #include "implement.h".
+
+ * dll.c: Remove defined(KLUDGE) wrapped code.
+
+ * fork.c: Remove redefinition of ENOMEM.
+ Remove pthread_atfork() and fork() with #if 0/#endif.
+
+ * create.c (pthread_create): Rename threadStart and threadDestroy calls
+ to ptw32_threadStart and ptw32_threadDestroy.
+
+ * implement.h: Rename "detachedstate" to "detachstate".
+
+ * attr.c: Rename "detachedstate" to "detachstate".
+
+Mon Dec 28 09:54:39 1998 John Bossom
+
+ * semaphore.c: Initial version.
+ * semaphore.h: Initial version.
+
+Mon Dec 28 09:54:39 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
+
+ * pthread.h (pthread_attr_t_): Change to *pthread_attr_t.
+
+Mon Dec 28 09:54:39 1998 John Bossom, Ben Elliston
+
+ * attr.c (pthread_attr_setstacksize): Merge with John's version.
+ (pthread_attr_getstacksize): Merge with John's version.
+ (pthread_attr_setstackaddr): Merge with John's version.
+ (pthread_attr_getstackaddr): Merge with John's version.
+ (pthread_attr_init): Merge with John's version.
+ (pthread_attr_destroy): Merge with John's version.
+ (pthread_attr_getdetachstate): Merge with John's version.
+ (pthread_attr_setdetachstate): Merge with John's version.
+ (is_attr): attr is now **attr (was *attr), so add extra NULL pointer
+ test.
+
+Mon Dec 28 09:54:39 1998 Ross Johnson
+
+ * implement.h (pthread_attr_t_): Add and rename elements in JEB's
+ version to correspond to original, so that it can be used with
+ original attr routines.
+
+ * pthread.h: Add #endif at end which was truncated in merging.
+
+Sun Dec 20 14:51:58 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
+
+ * misc.c (pthreadCancelableWait): New function by John Bossom. Non-standard
+ but provides a hook that can be used to implement cancellation points in
+ applications that use this library.
+
+ * pthread.h (pthread_cleanup_pop): C++ (non-WIN32) version uses
+ try/catch to emulate John Bossom's WIN32 __try/__finally behaviour.
+ In the WIN32 version __finally block, add a test for AbnormalTermination otherwise
+ cleanup is only run if the cleanup_pop execute arg is non-zero. Cancellation
+ should cause the cleanup to run irrespective of the execute arg.
+
+ * condvar.c (pthread_condattr_init): Replaced by John Bossom's version.
+ (pthread_condattr_destroy): Replaced by John Bossom's version.
+ (pthread_condattr_getpshared): Replaced by John Bossom's version.
+ (pthread_condattr_setpshared): Replaced by John Bossom's version.
+ (pthread_cond_init): Replaced by John Bossom's version.
+ Fix comment (refered to mutex rather than condition variable).
+ (pthread_cond_destroy): Replaced by John Bossom's version.
+ (pthread_cond_wait): Replaced by John Bossom's version.
+ (pthread_cond_timedwait): Replaced by John Bossom's version.
+ (pthread_cond_signal): Replaced by John Bossom's version.
+ (pthread_cond_broadcast): Replaced by John Bossom's version.
+
+Thu Dec 17 19:10:46 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
+
+ * tsd.c (pthread_key_create): Replaced by John Bossom's version.
+ (pthread_key_delete): Replaced by John Bossom's version.
+ (pthread_setspecific): Replaced by John Bossom's version.
+ (pthread_getspecific): Replaced by John Bossom's version.
+
+Mon Dec 7 09:44:40 1998 John Bossom
+
+ * cancel.c (pthread_setcancelstate): Replaced.
+ (pthread_setcanceltype): Replaced.
+ (pthread_testcancel): Replaced.
+ (pthread_cancel): Replaced.
+
+ * exit.c (pthread_exit): Replaced.
+
+ * misc.c (pthread_self): Replaced.
+ (pthread_equal): Replaced.
+
+ * sync.c (pthread_detach): Replaced.
+ (pthread_join): Replaced.
+
+ * create.c (pthread_create): Replaced.
+
+ * private.c (ptw32_processInitialize): New.
+ (ptw32_processTerminate): New.
+ (ptw32_threadStart): New.
+ (ptw32_threadDestroy): New.
+ (ptw32_cleanupStack): New.
+ (ptw32_tkAssocCreate): New.
+ (ptw32_tkAssocDestroy): New.
+ (ptw32_callUserDestroyRoutines): New.
+
+ * implement.h: Added non-API structures and declarations.
+
+ * dll.c (PthreadsEntryPoint): Cast return value of GetProcAddress
+ to resolve compile warning from MSVC.
+
+ * dll.c (DLLmain): Replaced.
+ * dll.c (PthreadsEntryPoint):
+ Re-applied Anders Norlander's patch:-
+ Initialize ptw32_try_enter_critical_section at startup
+ and release kernel32 handle when DLL is being unloaded.
+
+Sun Dec 6 21:54:35 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
+
+ * buildlib.bat: Fix args to CL when building the .DLL
+
+ * cleanup.c (ptw32_destructor_run_all): Fix TSD key management.
+ This is a tidy-up before TSD and Thread management is completely
+ replaced by John Bossom's code.
+
+ * tsd.c (pthread_key_create): Fix TSD key management.
+
+ * global.c (ptw32_key_virgin_next): Initialise.
+
+ * build.bat: New DOS script to compile and link a pthreads app
+ using Microsoft's CL compiler linker.
+ * buildlib.bat: New DOS script to compile all the object files
+ and create pthread.lib and pthread.dll using Microsoft's CL
+ compiler linker.
+
+1998-12-05 Anders Norlander <anorland@hem2.passagen.se>
+
+ * implement.h (ptw32_try_enter_critical_section): New extern
+ * dll.c (ptw32_try_enter_critical_section): New pointer to
+ TryEnterCriticalSection if it exists; otherwise NULL.
+ * dll.c (PthreadsEntryPoint):
+ Initialize ptw32_try_enter_critical_section at startup
+ and release kernel32 handle when DLL is being unloaded.
+ * mutex.c (pthread_mutex_trylock): Replaced check for NT with
+ a check if ptw32_try_enter_critical_section is valid
+ pointer to a function. Call ptw32_try_enter_critical_section
+ instead of TryEnterCriticalSection to avoid errors on Win95.
+
+Thu Dec 3 13:32:00 1998 Ross Johnson <rpj@ise.canberra.edu.au>
+
+ * README: Correct cygwin32 compatibility statement.
+
+Sun Nov 15 21:24:06 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
+
+ * cleanup.c (ptw32_destructor_run_all): Declare missing void * arg.
+ Fixup CVS merge conflicts.
+
+1998-10-30 Ben Elliston <bje@cygnus.com>
+
+ * condvar.c (cond_wait): Fix semantic error. Test for equality
+ instead of making an assignment.
+
+Fri Oct 30 15:15:50 1998 Ross Johnson <rpj@swan.canberra.edu.au>
+
+ * cleanup.c (ptw32_handler_push): Fixed bug appending new
+ handler to list reported by Peter Slacik
+ <Peter.Slacik@leibinger.freinet.de>.
+ (new_thread): Rename poorly named local variable to
+ "new_handler".
+
+Sat Oct 24 18:34:59 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
+
+ * global.c: Add TSD key management array and index declarations.
+
+ * implement.h: Ditto for externs.
+
+Fri Oct 23 00:08:09 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
+
+ * implement.h (PTW32_TSD_KEY_REUSE): Add enum.
+
+ * private.c (ptw32_delete_thread): Add call to
+ ptw32_destructor_run_all() to clean up the threads keys.
+
+ * cleanup.c (ptw32_destructor_run_all): Check for no more dirty
+ keys to run destructors on. Assume that the destructor call always
+ succeeds and set the key value to NULL.
+
+Thu Oct 22 21:44:44 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
+
+ * tsd.c (pthread_setspecific): Add key management code.
+ (pthread_key_create): Ditto.
+ (pthread_key_delete): Ditto.
+
+ * implement.h (struct ptw32_tsd_key): Add status member.
+
+ * tsd.c: Add description of pthread_key_delete() from the
+ standard as a comment.
+
+Fri Oct 16 17:38:47 1998 Ross Johnson <rpj@swan.canberra.edu.au>
+
+ * cleanup.c (ptw32_destructor_run_all): Fix and improve
+ stepping through the key table.
+
+Thu Oct 15 14:05:01 1998 Ross Johnson <rpj@swan.canberra.edu.au>
+
+ * private.c (ptw32_new_thread): Remove init of destructorstack.
+ No longer an element of pthread_t.
+
+ * tsd.c (pthread_setspecific): Fix type declaration and cast.
+ (pthread_getspecific): Ditto.
+ (pthread_getspecific): Change error return value to NULL if key
+ is not in use.
+
+Thu Oct 15 11:53:21 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
+
+ * global.c (ptw32_tsd_key_table): Fix declaration.
+
+ * implement.h(ptw32_TSD_keys_TlsIndex): Add missing extern.
+ (ptw32_tsd_mutex): Ditto.
+
+ * create.c (ptw32_start_call): Fix "keys" array declaration.
+ Add comment.
+
+ * tsd.c (pthread_setspecific): Fix type declaration and cast.
+ (pthread_getspecific): Ditto.
+
+ * cleanup.c (ptw32_destructor_run_all): Declare missing loop
+ counter.
+
+Wed Oct 14 21:09:24 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
+
+ * private.c (ptw32_new_thread): Increment ptw32_threads_count.
+ (ptw32_delete_thread): Decrement ptw32_threads_count.
+ Remove some comments.
+
+ * exit.c (ptw32_exit): : Fix two pthread_mutex_lock() calls that
+ should have been pthread_mutex_unlock() calls.
+ (ptw32_vacuum): Remove call to ptw32_destructor_pop_all().
+
+ * create.c (pthread_create): Fix two pthread_mutex_lock() calls that
+ should have been pthread_mutex_unlock() calls.
+
+ * global.c (ptw32_tsd_mutex): Add mutex for TSD operations.
+
+ * tsd.c (pthread_key_create): Add critical section.
+ (pthread_setspecific): Ditto.
+ (pthread_getspecific): Ditto.
+ (pthread_key_delete): Ditto.
+
+ * sync.c (pthread_join): Fix two pthread_mutex_lock() calls that
+ should have been pthread_mutex_unlock() calls.
+
+Mon Oct 12 00:00:44 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
+
+ * implement.h (ptw32_tsd_key_table): New.
+
+ * create.c (ptw32_start_call): Initialise per-thread TSD keys
+ to NULL.
+
+ * misc.c (pthread_once): Correct typo in comment.
+
+ * implement.h (ptw32_destructor_push): Remove.
+ (ptw32_destructor_pop): Remove.
+ (ptw32_destructor_run_all): Rename from ptw32_destructor_pop_all.
+ (PTW32_TSD_KEY_DELETED): Add enum.
+ (PTW32_TSD_KEY_INUSE): Add enum.
+
+ * cleanup.c (ptw32_destructor_push): Remove.
+ (ptw32_destructor_pop): Remove.
+ (ptw32_destructor_run_all): Totally revamped TSD.
+
+ * dll.c (ptw32_TSD_keys_TlsIndex): Initialise.
+
+ * tsd.c (pthread_setspecific): Totally revamped TSD.
+ (pthread_getspecific): Ditto.
+ (pthread_create): Ditto.
+ (pthread_delete): Ditto.
+
+Sun Oct 11 22:44:55 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
+
+ * global.c (ptw32_tsd_key_table): Add new global.
+
+ * implement.h (ptw32_tsd_key_t and struct ptw32_tsd_key):
+ Add.
+ (struct _pthread): Remove destructorstack.
+
+ * cleanup.c (ptw32_destructor_run_all): Rename from
+ ptw32_destructor_pop_all. The key destructor stack was made
+ global rather than per-thread. No longer removes destructor nodes
+ from the stack. Comments updated.
+
+1998-10-06 Ben Elliston <bje@cygnus.com>
+
+ * condvar.c (cond_wait): Use POSIX, not Win32 mutex calls.
+ (pthread_cond_broadcast): Likewise.
+ (pthread_cond_signal): Likewise.
+
+1998-10-05 Ben Elliston <bje@cygnus.com>
+
+ * pthread.def: Update. Some functions aren't available yet, others
+ are macros in <pthread.h>.
+
+ * tests/join.c: Remove; useless.
+
+Mon Oct 5 14:25:08 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
+
+ * pthread.def: New file for building the DLL.
+
+1998-10-05 Ben Elliston <bje@cygnus.com>
+
+ * misc.c (pthread_equal): Correct inverted logic bug.
+ (pthread_once): Use the POSIX mutex primitives, not Win32. Remove
+ irrelevant FIXME comment.
+
+ * global.c (PTHREAD_MUTEX_INITIALIZER): Move to pthread.h.
+
+ * pthread.h (PTHREAD_MUTEX_INITIALIZER): Define.
+ (pthread_mutex_t): Reimplement as a struct containing a valid
+ flag. If the flag is ever down upon entry to a mutex operation,
+ we call pthread_mutex_create() to initialise the object. This
+ fixes the problem of how to handle statically initialised objects
+ that can't call InitializeCriticalSection() due to their context.
+ (PTHREAD_ONCE_INIT): Define.
+
+ * mutex.c (pthread_mutex_init): Set valid flag.
+ (pthread_mutex_destroy): Clear valid flag.
+ (pthread_mutex_lock): Check and handle the valid flag.
+ (pthread_mutex_unlock): Likewise.
+ (pthread_mutex_trylock): Likewise.
+
+ * tests/mutex3.c: New file; test for the static initialisation
+ macro. Passes.
+
+ * tests/create1.c: New file; test pthread_create(). Passes.
+
+ * tests/equal.c: Poor test; remove.
+
+ * tests/equal1.c New file; test pthread_equal(). Passes.
+
+ * tests/once1.c: New file; test for pthread_once(). Passes.
+
+ * tests/self.c: Remove; rename to self1.c.
+
+ * tests/self1.c: This is the old self.c.
+
+ * tests/self2.c: New file. Test pthread_self() with a single
+ thread. Passes.
+
+ * tests/self3.c: New file. Test pthread_self() with a couple of
+ threads to ensure their thread IDs differ. Passes.
+
+1998-10-04 Ben Elliston <bje@cygnus.com>
+
+ * tests/mutex2.c: Test pthread_mutex_trylock(). Passes.
+
+ * tests/mutex1.c: New basic test for mutex functions (it passes).
+ (main): Eliminate warning.
+
+ * configure.in: Test for __stdcall, not _stdcall. Typo.
+
+ * configure: Regenerate.
+
+ * attr.c (pthread_attr_setstackaddr): Remove FIXME comment. Win32
+ does know about ENOSYS after all.
+ (pthread_attr_setstackaddr): Likewise.
+
+1998-10-03 Ben Elliston <bje@cygnus.com>
+
+ * configure.in: Test for the `_stdcall' keyword. Define `STDCALL'
+ to `_stdcall' if we have it, null otherwise.
+
+ * configure: Regenerate.
+
+ * acconfig.h (STDCALL): New define.
+
+ * config.h.in: Regenerate.
+
+ * create.c (ptw32_start_call): Add STDCALL prefix.
+
+ * mutex.c (pthread_mutex_init): Correct function signature.
+
+ * attr.c (pthread_attr_init): Only zero out the `sigmask' member
+ if we have the sigset_t type.
+
+ * pthread.h: No need to include <unistd.h>. It doesn't even exist
+ on Win32! Again, an artifact of cross-compilation.
+ (pthread_sigmask): Only provide if we have the sigset_t type.
+
+ * process.h: Remove. This was a stand-in before we started doing
+ native compilation under Win32.
+
+ * pthread.h (pthread_mutex_init): Make `attr' argument const.
+
+1998-10-02 Ben Elliston <bje@cygnus.com>
+
+ * COPYING: Remove.
+
+ * COPYING.LIB: Add. This library is under the LGPL.
+
+1998-09-13 Ben Elliston <bje@cygnus.com>
+
+ * configure.in: Test for required system features.
+
+ * configure: Generate.
+
+ * acconfig.h: New file.
+
+ * config.h.in: Generate.
+
+ * Makefile.in: Renamed from Makefile.
+
+ * COPYING: Import from a recent GNU package.
+
+ * config.guess: Likewise.
+
+ * config.sub: Likewise.
+
+ * install-sh: Likewise.
+
+ * config.h: Remove.
+
+ * Makefile: Likewise.
+
+1998-09-12 Ben Elliston <bje@cygnus.com>
+
+ * windows.h: No longer needed; remove.
+
+ * windows.c: Likewise.
+
+Sat Sep 12 20:09:24 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
+
+ * windows.h: Remove error number definitions. These are in <errno.h>
+
+ * tsd.c: Add comment explaining rationale for not building
+ POSIX TSD on top of Win32 TLS.
+
+1998-09-12 Ben Elliston <bje@cygnus.com>
+
+ * {most}.c: Include <errno.h> to get POSIX error values.
+
+ * signal.c (pthread_sigmask): Only provide if HAVE_SIGSET_T is
+ defined.
+
+ * config.h: #undef features, don't #define them. This will be
+ generated by autoconf very soon.
+
+1998-08-11 Ben Elliston <bje@cygnus.com>
+
+ * Makefile (LIB): Define.
+ (clean): Define target.
+ (all): Build a library not just the object files.
+
+ * pthread.h: Provide a definition for struct timespec if we don't
+ already have one.
+
+ * windows.c (TlsGetValue): Bug fix.
+
+Thu Aug 6 15:19:22 1998 Ross Johnson <rpj@swan.canberra.edu.au>
+
+ * misc.c (pthread_once): Fix arg 1 of EnterCriticalSection()
+ and LeaveCriticalSection() calls to pass address-of lock.
+
+ * fork.c (pthread_atfork): Typecast (void (*)(void *)) funcptr
+ in each ptw32_handler_push() call.
+
+ * exit.c (ptw32_exit): Fix attr arg in
+ pthread_attr_getdetachstate() call.
+
+ * private.c (ptw32_new_thread): Typecast (HANDLE) NULL.
+ (ptw32_delete_thread): Ditto.
+
+ * implement.h: (PTW32_MAX_THREADS): Add define. This keeps
+ changing in an attempt to make thread administration data types
+ opaque and cleanup DLL startup.
+
+ * dll.c (PthreadsEntryPoint):
+ (ptw32_virgins): Remove malloc() and free() calls.
+ (ptw32_reuse): Ditto.
+ (ptw32_win32handle_map): Ditto.
+ (ptw32_threads_mutex_table): Ditto.
+
+ * global.c (_POSIX_THREAD_THREADS_MAX): Initialise with
+ PTW32_MAX_THREADS.
+ (ptw32_virgins): Ditto.
+ (ptw32_reuse): Ditto.
+ (ptw32_win32handle_map): Ditto.
+ (ptw32_threads_mutex_table): Ditto.
+
+ * create.c (pthread_create): Typecast (HANDLE) NULL.
+ Typecast (unsigned (*)(void *)) start_routine.
+
+ * condvar.c (pthread_cond_init): Add address-of operator & to
+ arg 1 of pthread_mutex_init() call.
+ (pthread_cond_destroy): Add address-of operator & to
+ arg 1 of pthread_mutex_destroy() call.
+
+ * cleanup.c (ptw32_destructor_pop_all): Add (int) cast to
+ pthread_getspecific() arg.
+ (ptw32_destructor_pop): Add (void *) cast to "if" conditional.
+ (ptw32_destructor_push): Add (void *) cast to
+ ptw32_handler_push() "key" arg.
+ (malloc.h): Add include.
+
+ * implement.h (ptw32_destructor_pop): Add prototype.
+
+ * tsd.c (implement.h): Add include.
+
+ * sync.c (pthread_join): Remove target_thread_mutex and it's
+ initialisation. Rename getdetachedstate to getdetachstate.
+ Remove unused variable "exitcode".
+ (pthread_detach): Remove target_thread_mutex and it's
+ initialisation. Rename getdetachedstate to getdetachstate.
+ Rename setdetachedstate to setdetachstate.
+
+ * signal.c (pthread_sigmask): Rename SIG_SET to SIG_SETMASK.
+ Cast "set" to (long *) in assignment to passify compiler warning.
+ Add address-of operator & to thread->attr.sigmask in memcpy() call
+ and assignment.
+ (pthread_sigmask): Add address-of operator & to thread->attr.sigmask
+ in memcpy() call and assignment.
+
+ * windows.h (THREAD_PRIORITY_ERROR_RETURN): Add.
+ (THREAD_PRIORITY_LOWEST): Add.
+ (THREAD_PRIORITY_HIGHEST): Add.
+
+ * sched.c (is_attr): Add function.
+ (implement.h): Add include.
+ (pthread_setschedparam): Rename all instances of "sched_policy"
+ to "sched_priority".
+ (pthread_getschedparam): Ditto.
+
+Tue Aug 4 16:57:58 1998 Ross Johnson <rpj@swan.canberra.edu.au>
+
+ * private.c (ptw32_delete_thread): Fix typo. Add missing ';'.
+
+ * global.c (ptw32_virgins): Change types from pointer to
+ array pointer.
+ (ptw32_reuse): Ditto.
+ (ptw32_win32handle_map): Ditto.
+ (ptw32_threads_mutex_table): Ditto.
+
+ * implement.h(ptw32_virgins): Change types from pointer to
+ array pointer.
+ (ptw32_reuse): Ditto.
+ (ptw32_win32handle_map): Ditto.
+ (ptw32_threads_mutex_table): Ditto.
+
+ * private.c (ptw32_delete_thread): Fix "entry" should be "thread".
+
+ * misc.c (pthread_self): Add extern for ptw32_threadID_TlsIndex.
+
+ * global.c: Add comment.
+
+ * misc.c (pthread_once): Fix member -> dereferences.
+ Change ptw32_once_flag to once_control->flag in "if" test.
+
+Tue Aug 4 00:09:30 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
+
+ * implement.h(ptw32_virgins): Add extern.
+ (ptw32_virgin_next): Ditto.
+ (ptw32_reuse): Ditto.
+ (ptw32_reuse_top): Ditto.
+ (ptw32_win32handle_map): Ditto.
+ (ptw32_threads_mutex_table): Ditto.
+
+ * global.c (ptw32_virgins): Changed from array to pointer.
+ Storage allocation for the array moved into dll.c.
+ (ptw32_reuse): Ditto.
+ (ptw32_win32handle_map): Ditto.
+ (ptw32_threads_mutex_table): Ditto.
+
+ * dll.c (PthreadsEntryPoint): Set up thread admin storage when
+ DLL is loaded.
+
+ * fork.c (pthread_atfork): Fix function pointer arg to all
+ ptw32_handler_push() calls. Change "arg" arg to NULL in child push.
+
+ * exit.c: Add windows.h and process.h includes.
+ (ptw32_exit): Add local detachstate declaration.
+ (ptw32_exit): Fix incorrect name for pthread_attr_getdetachstate().
+
+ * pthread.h (_POSIX_THREAD_ATTR_STACKSIZE): Move from global.c
+ (_POSIX_THREAD_ATTR_STACKADDR): Ditto.
+
+ * create.c (pthread_create): Fix #if should be #ifdef.
+ (ptw32_start_call): Remove usused variables.
+
+ * process.h: Create.
+
+ * windows.h: Move _beginthreadex and _endthreadex into
+ process.h
+
+Mon Aug 3 21:19:57 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
+
+ * condvar.c (pthread_cond_init): Add NULL attr to
+ pthread_mutex_init() call - default attributes will be used.
+ (cond_wait): Fix typo.
+ (cond_wait): Fix typo - cv was ev.
+ (pthread_cond_broadcast): Fix two identical typos.
+
+ * cleanup.c (ptw32_destructor_pop_all): Remove _ prefix from
+ PTHREAD_DESTRUCTOR_ITERATIONS.
+
+ * pthread.h: Move _POSIX_* values into posix.h
+
+ * pthread.h: Fix typo in pthread_mutex_init() prototype.
+
+ * attr.c (pthread_attr_init): Fix error in priority member init.
+
+ * windows.h (THREAD_PRIORITY_NORMAL): Add.
+
+ * pthread.h (sched_param): Add missing ';' to struct definition.
+
+ * attr.c (pthread_attr_init): Remove obsolete pthread_attr_t
+ member initialisation - cancelstate, canceltype, cancel_pending.
+ (is_attr): Make arg "attr" a const.
+
+ * implement.h (PTW32_HANDLER_POP_LIFO): Remove definition.
+ (PTW32_HANDLER_POP_FIFO): Ditto.
+ (PTW32_VALID): Add missing newline escape (\).
+ (ptw32_handler_node): Make element "next" a pointer.
+
+1998-08-02 Ben Elliston <bje@cygnus.com>
+
+ * windows.h: Remove duplicate TlsSetValue() prototype. Add
+ TlsGetValue() prototype.
+ (FALSE): Define.
+ (TRUE): Likewise.
+ Add forgotten errno values. Guard against multiple #includes.
+
+ * windows.c: New file. Implement stubs for Win32 functions.
+
+ * Makefile (SRCS): Remove. Not explicitly needed.
+ (CFLAGS): Add -Wall for all warnings with GCC.
+
+Sun Aug 2 19:03:42 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
+
+ * config.h: Create. This is a temporary stand-in for autoconf yet
+ to be done.
+ (HAVE_SIGNAL_H): Add.
+
+ * pthread.h: Minor rearrangement for temporary config.h.
+
+Fri Jul 31 14:00:29 1998 Ross Johnson <rpj@swan.canberra.edu.au>
+
+ * cleanup.c (ptw32_destructor_pop): Implement. Removes
+ destructors associated with a key without executing them.
+ (ptw32_destructor_pop_all): Add FIXME comment.
+
+ * tsd.c (pthread_key_delete): Add call to ptw32_destructor_pop().
+
+Fri Jul 31 00:05:45 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
+
+ * tsd.c (pthread_key_create): Update to properly associate
+ the destructor routine with the key.
+ (pthread_key_delete): Add FIXME comment.
+
+ * exit.c (ptw32_vacuum): Add call to
+ ptw32_destructor_pop_all().
+
+ * implement.h (ptw32_handler_pop_all): Add prototype.
+ (ptw32_destructor_pop_all): Ditto.
+
+ * cleanup.c (ptw32_destructor_push): Implement. This is just a
+ call to ptw32_handler_push().
+ (ptw32_destructor_pop_all): Implement. This is significantly
+ different to ptw32_handler_pop_all().
+
+ * Makefile (SRCS): Create. Preliminary.
+
+ * windows.h: Create. Contains Win32 definitions for compile
+ testing. This is just a standin for the real one.
+
+ * pthread.h (SIG_UNBLOCK): Fix typo. Was SIG_BLOCK.
+ (windows.h): Add include. Required for CRITICAL_SECTION.
+ (pthread_cond_t): Move enum declaration outside of struct
+ definition.
+ (unistd.h): Add include - may be temporary.
+
+ * condvar.c (windows.h): Add include.
+
+ * implement.h (PTW32_THIS): Remove - no longer required.
+ (PTW32_STACK): Use pthread_self() instead of PTW32_THIS.
+
+Thu Jul 30 23:12:45 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
+
+ * implement.h: Remove ptw32_find_entry() prototype.
+
+ * private.c: Extend comments.
+ Remove ptw32_find_entry() - no longer needed.
+
+ * create.c (ptw32_start_call): Add call to TlsSetValue() to
+ store the thread ID.
+
+ * dll.c (PthreadsEntryPoint): Implement. This is called
+ whenever a process loads the DLL. Used to initialise thread
+ local storage.
+
+ * implement.h: Add ptw32_threadID_TlsIndex.
+ Add ()s around PTW32_VALID expression.
+
+ * misc.c (pthread_self): Re-implement using Win32 TLS to store
+ the threads own ID.
+
+Wed Jul 29 11:39:03 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
+
+ * private.c: Corrections in comments.
+ (ptw32_new_thread): Alter "if" flow to be more natural.
+
+ * cleanup.c (ptw32_handler_push): Same as below.
+
+ * create.c (pthread_create): Same as below.
+
+ * private.c (ptw32_new_thread): Rename "new" to "new_thread".
+ Since when has a C programmer been required to know C++?
+
+Tue Jul 28 14:04:29 1998 Ross Johnson <rpj@swan.canberra.edu.au>
+
+ * implement.h: Add PTW32_VALID macro.
+
+ * sync.c (pthread_join): Modify to use the new thread
+ type and ptw32_delete_thread(). Rename "target" to "thread".
+ Remove extra local variable "target".
+ (pthread_detach): Ditto.
+
+ * signal.c (pthread_sigmask): Move init of "us" out of inner block.
+ Fix instance of "this" should have been "us". Rename "us" to "thread".
+
+ * sched.c (pthread_setschedparam): Modify to use the new thread
+ type.
+ (pthread_getschedparam): Ditto.
+
+ * private.c (ptw32_find_thread): Fix return type and arg.
+
+ * implement.h: Remove PTW32_YES and PTW32_NO.
+ (ptw32_new_thread): Add prototype.
+ (ptw32_find_thread): Ditto.
+ (ptw32_delete_thread): Ditto.
+ (ptw32_new_thread_entry): Remove prototype.
+ (ptw32_find_thread_entry): Ditto.
+ (ptw32_delete_thread_entry): Ditto.
+ ( PTW32_NEW, PTW32_INUSE, PTW32_EXITED, PTW32_REUSE):
+ Add.
+
+
+ * create.c (pthread_create): Minor rename "us" to "new" (I need
+ these cues but it doesn't stop me coming out with some major bugs
+ at times).
+ Load start_routine and arg into the thread so the wrapper can
+ call it.
+
+ * exit.c (pthread_exit): Fix pthread_this should be pthread_self.
+
+ * cancel.c (pthread_setcancelstate): Change
+ ptw32_threads_thread_t * to pthread_t and init with
+ pthread_this().
+ (pthread_setcanceltype): Ditto.
+
+ * exit.c (ptw32_exit): Add new pthread_t arg.
+ Rename ptw32_delete_thread_entry to ptw32_delete_thread.
+ Rename "us" to "thread".
+ (pthread_exit): Call ptw32_exit with added thread arg.
+
+ * create.c (ptw32_start_call): Insert missing ")".
+ Add "us" arg to ptw32_exit() call.
+ (pthread_create): Modify to use new thread allocation scheme.
+
+ * private.c: Added detailed explanation of the new thread
+ allocation scheme.
+ (ptw32_new_thread): Totally rewritten to use
+ new thread allocation scheme.
+ (ptw32_delete_thread): Ditto.
+ (ptw32_find_thread): Obsolete.
+
+Mon Jul 27 17:46:37 1998 Ross Johnson <rpj@swan.canberra.edu.au>
+
+ * create.c (pthread_create): Start of rewrite. Not completed yet.
+
+ * private.c (ptw32_new_thread_entry): Start of rewrite. Not
+ complete.
+
+ * implement.h (ptw32_threads_thread): Rename, remove thread
+ member, add win32handle and ptstatus members.
+ (ptw32_t): Add.
+
+ * pthread.h: pthread_t is no longer mapped directly to a Win32
+ HANDLE type. This is so we can let the Win32 thread terminate and
+ reuse the HANDLE while pthreads holds it's own thread ID until
+ the last waiting join exits.
+
+Mon Jul 27 00:20:37 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
+
+ * private.c (ptw32_delete_thread_entry): Destroy the thread
+ entry attribute object before deleting the thread entry itself.
+
+ * attr.c (pthread_attr_init): Initialise cancel_pending = FALSE.
+ (pthread_attr_setdetachstate): Rename "detached" to "detachedstate".
+ (pthread_attr_getdetachstate): Ditto.
+
+ * exit.c (ptw32_exit): Fix incorrect check for detachedstate.
+
+ * implement.h (ptw32_call_t): Remove env member.
+
+Sun Jul 26 13:06:12 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
+
+ * implement.h (ptw32_new_thread_entry): Fix prototype.
+ (ptw32_find_thread_entry): Ditto.
+ (ptw32_delete_thread_entry): Ditto.
+ (ptw32_exit): Add prototype.
+
+ * exit.c (ptw32_exit): New function. Called from pthread_exit()
+ and ptw32_start_call() to exit the thread. It allows an extra
+ argument which is the return code passed to _endthreadex().
+ (ptw32_exit): Move thread entry delete call from ptw32_vacuum()
+ into here. Add more explanation of thread entry deletion.
+ (ptw32_exit): Clarify comment.
+
+ * create.c (ptw32_start_call): Change pthread_exit() call to
+ ptw32_exit() call.
+
+ * exit.c (ptw32_vacuum): Add thread entry deletion code
+ moved from ptw32_start_call(). See next item.
+ (pthread_exit): Remove longjmp(). Add mutex lock around thread table
+ manipulation code. This routine now calls _enthreadex().
+
+ * create.c (ptw32_start_call): Remove setjmp() call and move
+ cleanup code out. Call pthread_exit(NULL) to terminate the thread.
+
+1998-07-26 Ben Elliston <bje@cygnus.com>
+
+ * tsd.c (pthread_getspecific): Update comments.
+
+ * mutex.c (pthread_mutexattr_setpshared): Not supported; remove.
+ (pthread_mutexattr_getpshared): Likewise.
+
+ * pthread.h (pthread_mutexattr_setpshared): Remove prototype.
+ (pthread_mutexattr_getpshared): Likewise.
+
+Sun Jul 26 00:09:59 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
+
+ * sync.c: Rename all instances of ptw32_count_mutex to
+ ptw32_table_mutex.
+
+ * implement.h: Rename ptw32_count_mutex to
+ ptw32_table_mutex.
+
+ * global.c: Rename ptw32_count_mutex to
+ ptw32_table_mutex.
+
+ * create.c (pthread_create): Add critical sections.
+ (ptw32_start_call): Rename ptw32_count_mutex to
+ ptw32_table_mutex.
+
+ * cancel.c (pthread_setcancelstate): Fix indirection bug and rename
+ "this" to "us".
+
+ * signal.c (pthread_sigmask): Rename "this" to "us" and fix some
+ minor syntax errors. Declare "us" and initialise it.
+
+ * sync.c (pthread_detach): Rename "this" to "target".
+
+ * pthread.h: Converting PTHREAD_* defines to alias the (const int)
+ values in global.c.
+
+ * global.c: Started converting PTHREAD_* defines to (const int) as
+ a part of making the eventual pthreads DLL binary compatible
+ through version changes.
+
+ * condvar.c (cond_wait): Add cancelation point. This applies the
+ point to both pthread_cond_wait() and pthread_cond_timedwait().
+
+ * exit.c (pthread_exit): Rename "this" to "us".
+
+ * implement.h: Add comment.
+
+ * sync.c (pthread_join): I've satisfied myself that pthread_detach()
+ does set the detached attribute in the thread entry attributes
+ to PTHREAD_CREATE_DETACHED. "if" conditions were changed to test
+ that attribute instead of a separate flag.
+
+ * create.c (pthread_create): Rename "this" to "us".
+ (pthread_create): cancelstate and canceltype are not attributes
+ so the copy to thread entry attribute storage was removed.
+ Only the thread itself can change it's cancelstate or canceltype,
+ ie. the thread must exist already.
+
+ * private.c (ptw32_delete_thread_entry): Mutex locks removed.
+ Mutexes must be applied at the caller level.
+ (ptw32_new_thread_entry): Ditto.
+ (ptw32_new_thread_entry): Init cancelstate, canceltype, and
+ cancel_pending to default values.
+ (ptw32_new_thread_entry): Rename "this" to "new".
+ (ptw32_find_thread_entry): Rename "this" to "entry".
+ (ptw32_delete_thread_entry): Rename "thread_entry" to "entry".
+
+ * create.c (ptw32_start_call): Mutexes changed to
+ ptw32_count_mutex. All access to the threads table entries is
+ under the one mutex. Otherwise chaos reigns.
+
+Sat Jul 25 23:16:51 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
+
+ * implement.h (ptw32_threads_thread): Move cancelstate and
+ canceltype members out of pthread_attr_t into here.
+
+ * fork.c (fork): Add comment.
+
+1998-07-25 Ben Elliston <bje@cygnus.com>
+
+ * fork.c (fork): Autoconfiscate.
+
+Sat Jul 25 00:00:13 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
+
+ * create.c (ptw32_start_call): Set thread priority. Ensure our
+ thread entry is removed from the thread table but only if
+ pthread_detach() was called and there are no waiting joins.
+ (pthread_create): Set detach flag in thread entry if the
+ thread is created PTHREAD_CREATE_DETACHED.
+
+ * pthread.h (pthread_attr_t): Rename member "detachedstate".
+
+ * attr.c (pthread_attr_init): Rename attr members.
+
+ * exit.c (pthread_exit): Fix indirection mistake.
+
+ * implement.h (PTW32_THREADS_TABLE_INDEX): Add.
+
+ * exit.c (ptw32_vacuum): Fix incorrect args to
+ ptw32_handler_pop_all() calls.
+ Make thread entry removal conditional.
+
+ * sync.c (pthread_join): Add multiple join and async detach handling.
+
+ * implement.h (PTW32_THREADS_TABLE_INDEX): Add.
+
+ * global.c (ptw32_threads_mutex_table): Add.
+
+ * implement.h (ptw32_once_flag): Remove.
+ (ptw32_once_lock): Ditto.
+ (ptw32_threads_mutex_table): Add.
+
+ * global.c (ptw32_once_flag): Remove.
+ (ptw32_once_lock): Ditto.
+
+ * sync.c (pthread_join): Fix tests involving new return value
+ from ptw32_find_thread_entry().
+ (pthread_detach): Ditto.
+
+ * private.c (ptw32_find_thread_entry): Failure return code
+ changed from -1 to NULL.
+
+Fri Jul 24 23:09:33 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
+
+ * create.c (pthread_create): Change . to -> in sigmask memcpy() args.
+
+ * pthread.h: (pthread_cancel): Add function prototype.
+ (pthread_testcancel): Ditto.
+
+1998-07-24 Ben Elliston <bje@cygnus.com>
+
+ * pthread.h (pthread_condattr_t): Rename dummy structure member.
+ (pthread_mutexattr_t): Likewise.
+
+Fri Jul 24 21:13:55 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
+
+ * cancel.c (pthread_cancel): Implement.
+ (pthread_testcancel): Implement.
+
+ * exit.c (pthread_exit): Add comment explaining the longjmp().
+
+ * implement.h (ptw32_threads_thread_t): New member cancelthread.
+ (PTW32_YES): Define.
+ (PTW32_NO): Define.
+ (RND_SIZEOF): Remove.
+
+ * create.c (pthread_create): Rename cancelability to cancelstate.
+
+ * pthread.h (pthread_attr_t): Rename cancelability to cancelstate.
+ (PTHREAD_CANCELED): Define.
+
+1998-07-24 Ben Elliston <bje@cygnus.com>
+
+ * pthread.h (SIG_BLOCK): Define if not already defined.
+ (SIG_UNBLOCK): Likewise.
+ (SIG_SETMASK): Likewise.
+ (pthread_attr_t): Add signal mask member.
+ (pthread_sigmask): Add function prototype.
+
+ * signal.c (pthread_sigmask): Implement.
+
+ * create.c: #include <string.h> to get a prototype for memcpy().
+ (pthread_create): New threads inherit their creator's signal
+ mask. Copy the signal mask to the new thread structure if we know
+ about signals.
+
+Fri Jul 24 16:33:17 1998 Ross Johnson <rpj@swan.canberra.edu.au>
+
+ * fork.c (pthread_atfork): Add all the necessary push calls.
+ Local implementation semantics:
+ If we get an ENOMEM at any time then ALL handlers
+ (including those from previous pthread_atfork() calls) will be
+ popped off each of the three atfork stacks before we return.
+ (fork): Add all the necessary pop calls. Add the thread cancellation
+ and join calls to the child fork.
+ Add #includes.
+
+ * implement.h: (ptw32_handler_push): Fix return type and stack arg
+ type in prototype.
+ (ptw32_handler_pop): Fix stack arg type in prototype.
+ (ptw32_handler_pop_all): Fix stack arg type in prototype.
+
+ * cleanup.c (ptw32_handler_push): Change return type to int and
+ return ENOMEM if malloc() fails.
+
+ * sync.c (pthread_detach): Use equality test, not assignment.
+
+ * create.c (ptw32_start_call): Add call to Win32 CloseHandle()
+ if thread is detached.
+
+1998-07-24 Ben Elliston <bje@cygnus.com>
+
+ * sync.c (pthread_detach): Close the Win32 thread handle to
+ emulate detached (or daemon) threads.
+
+Fri Jul 24 03:00:25 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
+
+ * sync.c (pthread_join): Save valueptr arg in joinvalueptr for
+ pthread_exit() to use.
+
+ * private.c (ptw32_new_thread_entry): Initialise joinvalueptr to
+ NULL.
+
+ * create.c (ptw32_start_call): Rewrite to facilitate joins.
+ pthread_exit() will do a longjmp() back to here. Does appropriate
+ cleanup and exit/return from the thread.
+ (pthread_create): _beginthreadex() now passes a pointer to our
+ thread table entry instead of just the call member of that entry.
+
+ * implement.h (ptw32_threads_thread): New member
+ void ** joinvalueptr.
+ (ptw32_call_t): New member jmpbuf env.
+
+ * exit.c (pthread_exit): Major rewrite to handle joins and handing
+ value pointer to joining thread. Uses longjmp() back to
+ ptw32_start_call().
+
+ * create.c (pthread_create): Ensure values of new attribute members
+ are copied to the thread attribute object.
+
+ * attr.c (pthread_attr_destroy): Fix merge conflicts.
+ (pthread_attr_getdetachstate): Fix merge conflicts.
+ (pthread_attr_setdetachstate): Fix merge conflicts.
+
+ * pthread.h: Fix merge conflicts.
+
+ * sync.c (pthread_join): Fix merge conflicts.
+
+Fri Jul 24 00:21:21 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
+
+ * sync.c (pthread_join): Add check for valid and joinable
+ thread.
+ (pthread_detach): Implement. After checking for a valid and joinable
+ thread, it's still a no-op.
+
+ * private.c (ptw32_find_thread_entry): Bug prevented returning
+ an error value in some cases.
+
+ * attr.c (pthread_attr_setdetachedstate): Implement.
+ (pthread_attr_getdetachedstate): Implement.
+
+ * implement.h: Move more hidden definitions into here from
+ pthread.h.
+
+1998-07-24 Ben Elliston <bje@cygnus.com>
+
+ * pthread.h (PTHREAD_CREATE_JOINABLE): Define.
+ (PTHREAD_CREATE_DETACHED): Likewise.
+ (pthread_attr_t): Add new structure member `detached'.
+ (pthread_attr_getdetachstate): Add function prototype.
+ (pthread_attr_setdetachstate): Likewise.
+
+ * sync.c (pthread_join): Return if the target thread is detached.
+
+ * attr.c (pthread_attr_init): Initialise cancelability and
+ canceltype structure members.
+ (pthread_attr_getdetachstate): Implement.
+ (pthread_attr_setdetachstate): Likewise.
+
+ * implement.h (PTW32_CANCEL_DEFAULTS): Remove. Bit fields
+ proved to be too cumbersome. Set the defaults in attr.c using the
+ public PTHREAD_CANCEL_* constants.
+
+ * cancel.c: New file.
+
+ * pthread.h (sched_param): Define this type.
+ (pthread_attr_getschedparam): Add function prototype.
+ (pthread_attr_setschedparam): Likewise.
+ (pthread_setcancelstate): Likewise.
+ (pthread_setcanceltype): Likewise.
+ (sched_get_priority_min): Likewise.
+ (sched_get_priority_max): Likewise.
+ (pthread_mutexattr_setprotocol): Remove; not supported.
+ (pthread_mutexattr_getprotocol): Likewise.
+ (pthread_mutexattr_setprioceiling): Likewise.
+ (pthread_mutexattr_getprioceiling): Likewise.
+ (pthread_attr_t): Add canceltype member. Update comments.
+ (SCHED_OTHER): Define this scheduling policy constant.
+ (SCHED_FIFO): Likewise.
+ (SCHED_RR): Likewise.
+ (SCHED_MIN): Define the lowest possible value for this constant.
+ (SCHED_MAX): Likewise, the maximum possible value.
+ (PTHREAD_CANCEL_ASYNCHRONOUS): Redefine.
+ (PTHREAD_CANCEL_DEFERRED): Likewise.
+
+ * sched.c: New file.
+ (pthread_setschedparam): Implement.
+ (pthread_getschedparam): Implement.
+ (sched_get_priority_max): Validate policy argument.
+ (sched_get_priority_min): Likewise.
+
+ * mutex.c (pthread_mutexattr_setprotocol): Remove; not supported.
+ (pthread_mutexattr_getprotocol): Likewise.
+ (pthread_mutexattr_setprioceiling): Likewise.
+ (pthread_mutexattr_getprioceiling): Likewise.
+
+Fri Jul 24 00:21:21 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
+
+ * create.c (pthread_create): Arg to ptw32_new_thread_entry()
+ changed. See next entry. Move mutex locks out. Changes made yesterday
+ and today allow us to start the new thread running rather than
+ temporarily suspended.
+
+ * private.c (ptw32_new_thread_entry): ptw32_thread_table
+ was changed back to a table of thread structures rather than pointers.
+ As such we're trading storage for increaded speed. This routine
+ was modified to work with the new table. Mutex lock put in around
+ global data accesses.
+ (ptw32_find_thread_entry): Ditto
+ (ptw32_delete_thread_entry): Ditto
+
+Thu Jul 23 23:25:30 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
+
+ * global.c: New. Global data objects declared here. These moved from
+ pthread.h.
+
+ * pthread.h: Move implementation hidden definitions into
+ implement.h.
+
+ * implement.h: Move implementation hidden definitions from
+ pthread.h. Add constants to index into the different handler stacks.
+
+ * cleanup.c (ptw32_handler_push): Simplify args. Restructure.
+ (ptw32_handler_pop): Simplify args. Restructure.
+ (ptw32_handler_pop_all): Simplify args. Restructure.
+
+Wed Jul 22 00:16:22 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
+
+ * attr.c, implement.h, pthread.h, ChangeLog: Resolve CVS merge
+ conflicts.
+
+ * private.c (ptw32_find_thread_entry): Changes to return type
+ to support leaner ptw32_threads_table[] which now only stores
+ ptw32_thread_thread_t *.
+ (ptw32_new_thread_entry): Internal changes.
+ (ptw32_delete_thread_entry): Internal changes to avoid contention.
+ Calling routines changed accordingly.
+
+ * pthread.h: Modified cleanup macros to use new generic push and pop.
+ Added destructor and atfork stacks to ptw32_threads_thread_t.
+
+ * cleanup.c (ptw32_handler_push, ptw32_handler_pop,
+ ptw32_handler_pop_all): Renamed cleanup push and pop routines
+ and made generic to handle destructors and atfork handlers as
+ well.
+
+ * create.c (ptw32_start_call): New function is a wrapper for
+ all new threads. It allows us to do some cleanup when the thread
+ returns, ie. that is otherwise only done if the thread is cancelled.
+
+ * exit.c (ptw32_vacuum): New function contains code from
+ pthread_exit() that we need in the new ptw32_start_call()
+ as well.
+
+ * implement.h: Various additions and minor changes.
+
+ * pthread.h: Various additions and minor changes.
+ Change cleanup handler macros to use generic handler push and pop
+ functions.
+
+ * attr.c: Minor mods to all functions.
+ (is_attr): Implemented missing function.
+
+ * create.c (pthread_create): More clean up.
+
+ * private.c (ptw32_find_thread_entry): Implement.
+ (ptw32_delete_thread_entry): Implement.
+ (ptw32_new_thread_entry): Implement.
+ These functions manipulate the implementations internal thread
+ table and are part of general code cleanup and modularisation.
+ They replace ptw32_getthreadindex() which was removed.
+
+ * exit.c (pthread_exit): Changed to use the new code above.
+
+ * pthread.h: Add cancelability constants. Update comments.
+
+1998-07-22 Ben Elliston <bje@cygnus.com>
+
+ * attr.c (pthread_setstacksize): Update test of attr argument.
+ (pthread_getstacksize): Likewise.
+ (pthread_setstackaddr): Likewise.
+ (pthread_getstackaddr): Likewise.
+ (pthread_attr_init): No need to allocate any storage.
+ (pthread_attr_destroy): No need to free any storage.
+
+ * mutex.c (is_attr): Not likely to be needed; remove.
+ (remove_attr): Likewise.
+ (insert_attr): Likewise.
+
+ * implement.h (ptw32_mutexattr_t): Moved to a public definition
+ in pthread.h. There was little gain in hiding these details.
+ (ptw32_condattr_t): Likewise.
+ (ptw32_attr_t): Likewise.
+
+ * pthread.h (pthread_atfork): Add function prototype.
+ (pthread_attr_t): Moved here from implement.h.
+
+ * fork.c (pthread_atfork): Preliminary implementation.
+ (ptw32_fork): Likewise.
+
+Wed Jul 22 00:16:22 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
+
+ * cleanup.c (ptw32_cleanup_push): Implement.
+ (ptw32_cleanup_pop): Implement.
+ (ptw32_do_cancellation): Implement.
+ These are private to the implementation. The real cleanup functions
+ are macros. See below.
+
+ * pthread.h (pthread_cleanup_push): Implement as a macro.
+ (pthread_cleanup_pop): Implement as a macro.
+ Because these are macros which start and end a block, the POSIX scoping
+ requirement is observed. See the comment in the file.
+
+ * exit.c (pthread_exit): Refine the code.
+
+ * create.c (pthread_create): Code cleanup.
+
+ * implement.h (RND_SIZEOF): Add RND_SIZEOF(T) to round sizeof(T)
+ up to multiple of DWORD.
+ Add function prototypes.
+
+ * private.c (ptw32_getthreadindex): "*thread" should have been
+ "thread". Detect empty slot fail condition.
+
+1998-07-20 Ben Elliston <bje@cygnus.com>
+
+ * misc.c (pthread_once): Implement. Don't use a per-application
+ flag and mutex--make `pthread_once_t' contain these elements in
+ their structure. The earlier version had incorrect semantics.
+
+ * pthread.h (ptw32_once_flag): Add new variable. Remove.
+ (ptw32_once_lock): Add new mutex lock to ensure integrity of
+ access to ptw32_once_flag. Remove.
+ (pthread_once): Add function prototype.
+ (pthread_once_t): Define this type.
+
+Mon Jul 20 02:31:05 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
+
+ * private.c (ptw32_getthreadindex): Implement.
+
+ * pthread.h: Add application static data dependent on
+ _PTHREADS_BUILD_DLL define. This is needed to avoid allocating
+ non-sharable static data within the pthread DLL.
+
+ * implement.h: Add ptw32_cleanup_stack_t, ptw32_cleanup_node_t
+ and PTW32_HASH_INDEX.
+
+ * exit.c (pthread_exit): Begin work on cleanup and de-allocate
+ thread-private storage.
+
+ * create.c (pthread_create): Add thread to thread table.
+ Keep a thread-private copy of the attributes with default values
+ filled in when necessary. Same for the cleanup stack. Make
+ pthread_create C run-time library friendly by using _beginthreadex()
+ instead of CreateThread(). Fix error returns.
+
+Sun Jul 19 16:26:23 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
+
+ * implement.h: Rename pthreads_thread_count to ptw32_threads_count.
+ Create ptw32_threads_thread_t struct to keep thread specific data.
+
+ * create.c: Rename pthreads_thread_count to ptw32_threads_count.
+ (pthread_create): Handle errors from CreateThread().
+
+1998-07-19 Ben Elliston <bje@cygnus.com>
+
+ * condvar.c (pthread_cond_wait): Generalise. Moved from here ..
+ (cond_wait): To here.
+ (pthread_cond_timedwait): Implement; use generalised cond_wait().
+
+ * pthread.h (pthread_key_t): Define this type.
+ (pthread_key_create): Add function prototype.
+ (pthread_setspecific): Likewise.
+ (pthread_getspecific): Likwise.
+ (pthread_key_delete): Likewise.
+
+ * tsd.c (pthread_key_create): Implement.
+ (pthread_setspecific): Likewise.
+ (pthread_getspecific): Likewise.
+ (pthread_key_delete): Likewise.
+
+ * mutex.c (pthread_mutex_trylock): Return ENOSYS if this function
+ is called on a Win32 platform which is not Windows NT.
+
+1998-07-18 Ben Elliston <bje@cygnus.com>
+
+ * condvar.c (pthread_condattr_init): Do not attempt to malloc any
+ storage; none is needed now that condattr_t is an empty struct.
+ (pthread_condattr_destory): Likewise; do not free storage.
+ (pthread_condattr_setpshared): No longer supported; return ENOSYS.
+ (pthread_condattr_getpshared): Likewise.
+ (pthread_cond_init): Implement with help from Douglas Schmidt.
+ Remember to initialise the cv's internal mutex.
+ (pthread_cond_wait): Likewise.
+ (pthread_cond_signal): Likewise.
+ (pthread_cond_broadcast): Likewise.
+ (pthread_cond_timedwait): Preliminary implementation, but I need
+ to see some API documentation for `WaitForMultipleObject'.
+ (pthread_destory): Implement.
+
+ * pthread.h (pthread_cond_init): Add function protoype.
+ (pthread_cond_broadcast): Likewise.
+ (pthread_cond_signal): Likewise.
+ (pthread_cond_timedwait): Likewise.
+ (pthread_cond_wait): Likewise.
+ (pthread_cond_destroy): Likewise.
+ (pthread_cond_t): Define this type. Fix for u_int. Do not assume
+ that the mutex contained withing the pthread_cond_t structure will
+ be a critical section. Use our new POSIX type!
+
+ * implement.h (ptw32_condattr_t): Remove shared attribute.
+
+1998-07-17 Ben Elliston <bje@cygnus.com>
+
+ * pthread.h (PTHREADS_PROCESS_PRIVATE): Remove.
+ (PTHREAD_PROCESS_SHARED): Likewise. No support for mutexes shared
+ across processes for now.
+ (pthread_mutex_t): Use a Win32 CRITICAL_SECTION type for better
+ performance.
+
+ * implement.h (ptw32_mutexattr_t): Remove shared attribute.
+
+ * mutex.c (pthread_mutexattr_setpshared): This optional function
+ is no longer supported, since we want to implement POSIX mutex
+ variables using the much more efficient Win32 critical section
+ primitives. Critical section objects in Win32 cannot be shared
+ between processes.
+ (pthread_mutexattr_getpshared): Likewise.
+ (pthread_mutexattr_init): No need to malloc any storage; the
+ attributes structure is now empty.
+ (pthread_mutexattr_destroy): This is now a nop.
+ (pthread_mutex_init): Use InitializeCriticalSection().
+ (pthread_mutex_destroy): Use DeleteCriticalSection().
+ (pthread_mutex_lock): Use EnterCriticalSection().
+ (pthread_mutex_trylock): Use TryEnterCriticalSection(). This is
+ not supported by Windows 9x, but trylock is a hack anyway, IMHO.
+ (pthread_mutex_unlock): Use LeaveCriticalSection().
+
+1998-07-14 Ben Elliston <bje@cygnus.com>
+
+ * attr.c (pthread_attr_setstacksize): Implement.
+ (pthread_attr_getstacksize): Likewise.
+ (pthread_attr_setstackaddr): Likewise.
+ (pthread_attr_getstackaddr): Likewise.
+ (pthread_attr_init): Likewise.
+ (pthread_attr_destroy): Likewise.
+
+ * condvar.c (pthread_condattr_init): Add `_cond' to function name.
+
+ * mutex.c (pthread_mutex_lock): Add `_mutex' to function name.
+ (pthread_mutex_trylock): Likewise.
+ (pthread_mutex_unlock): Likewise.
+
+ * pthread.h (pthread_condattr_setpshared): Fix typo.
+ (pthread_attr_init): Add function prototype.
+ (pthread_attr_destroy): Likewise.
+ (pthread_attr_setstacksize): Likewise.
+ (pthread_attr_getstacksize): Likewise.
+ (pthread_attr_setstackaddr): Likewise.
+ (pthread_attr_getstackaddr): Likewise.
+
+Mon Jul 13 01:09:55 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
+
+ * implement.h: Wrap in #ifndef _IMPLEMENT_H
+
+ * create.c (pthread_create): Map stacksize attr to Win32.
+
+ * mutex.c: Include implement.h
+
+1998-07-13 Ben Elliston <bje@cygnus.com>
+
+ * condvar.c (pthread_condattr_init): Implement.
+ (pthread_condattr_destroy): Likewise.
+ (pthread_condattr_setpshared): Likewise.
+ (pthread_condattr_getpshared): Likewise.
+
+ * implement.h (PTHREAD_THREADS_MAX): Remove trailing semicolon.
+ (PTHREAD_STACK_MIN): Specify; needs confirming.
+ (ptw32_attr_t): Define this type.
+ (ptw32_condattr_t): Likewise.
+
+ * pthread.h (pthread_mutex_t): Define this type.
+ (pthread_condattr_t): Likewise.
+ (pthread_mutex_destroy): Add function prototype.
+ (pthread_lock): Likewise.
+ (pthread_trylock): Likewise.
+ (pthread_unlock): Likewise.
+ (pthread_condattr_init): Likewise.
+ (pthread_condattr_destroy): Likewise.
+ (pthread_condattr_setpshared): Likewise.
+ (pthread_condattr_getpshared): Likewise.
+
+ * mutex.c (pthread_mutex_init): Implement.
+ (pthread_mutex_destroy): Likewise.
+ (pthread_lock): Likewise.
+ (pthread_trylock): Likewise.
+ (pthread_unlock): Likewise.
+
+1998-07-12 Ben Elliston <bje@cygnus.com>
+
+ * implement.h (ptw32_mutexattr_t): Define this implementation
+ internal type. Application programmers only see a mutex attribute
+ object as a void pointer.
+
+ * pthread.h (pthread_mutexattr_t): Define this type.
+ (pthread_mutexattr_init): Add function prototype.
+ (pthread_mutexattr_destroy): Likewise.
+ (pthread_mutexattr_setpshared): Likewise.
+ (pthread_mutexattr_getpshared): Likewise.
+ (pthread_mutexattr_setprotocol): Likewise.
+ (pthread_mutexattr_getprotocol): Likewise.
+ (pthread_mutexattr_setprioceiling): Likewise.
+ (pthread_mutexattr_getprioceiling): Likewise.
+ (PTHREAD_PROCESS_PRIVATE): Define.
+ (PTHREAD_PROCESS_SHARED): Define.
+
+ * mutex.c (pthread_mutexattr_init): Implement.
+ (pthread_mutexattr_destroy): Implement.
+ (pthread_mutexattr_setprotocol): Implement.
+ (pthread_mutexattr_getprotocol): Likewise.
+ (pthread_mutexattr_setprioceiling): Likewise.
+ (pthread_mutexattr_getprioceiling): Likewise.
+ (pthread_mutexattr_setpshared): Likewise.
+ (pthread_mutexattr_getpshared): Likewise.
+ (insert_attr): New function; very preliminary implementation!
+ (is_attr): Likewise.
+ (remove_attr): Likewise.
+
+Sat Jul 11 14:48:54 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
+
+ * implement.h: Preliminary implementation specific defines.
+
+ * create.c (pthread_create): Preliminary implementation.
+
+1998-07-11 Ben Elliston <bje@cygnus.com>
+
+ * sync.c (pthread_join): Implement.
+
+ * misc.c (pthread_equal): Likewise.
+
+ * pthread.h (pthread_join): Add function prototype.
+ (pthread_equal): Likewise.
+
+1998-07-10 Ben Elliston <bje@cygnus.com>
+
+ * misc.c (pthread_self): Implement.
+
+ * exit.c (pthread_exit): Implement.
+
+ * pthread.h (pthread_exit): Add function prototype.
+ (pthread_self): Likewise.
+ (pthread_t): Define this type.
+
+1998-07-09 Ben Elliston <bje@cygnus.com>
+
+ * create.c (pthread_create): A dummy stub right now.
+
+ * pthread.h (pthread_create): Add function prototype.
diff --git a/GNUmakefile b/GNUmakefile index 4655d91..4c4afcb 100644 --- a/GNUmakefile +++ b/GNUmakefile @@ -187,6 +187,7 @@ SMALL_STATIC_OBJS = \ ptw32_getprocessors.o \ ptw32_calloc.o \ ptw32_new.o \ + ptw32_reuse.o \ ptw32_rwlock_check_need_init.o \ sched_get_priority_max.o \ sched_get_priority_min.o \ @@ -207,6 +208,7 @@ SMALL_STATIC_OBJS = \ ptw32_increase_semaphore.o \ ptw32_decrease_semaphore.o \ signal.o \ + pthread_kill.o \ ptw32_spinlock_check_need_init.o \ pthread_spin_init.o \ pthread_spin_destroy.o \ @@ -272,11 +274,13 @@ EXIT_SRCS = \ MISC_SRCS = \ pthread_equal.c \ pthread_getconcurrency.c \ + pthread_kill.c \ pthread_once.c \ pthread_self.c \ pthread_setconcurrency.c \ ptw32_calloc.c \ ptw32_new.c \ + ptw32_reuse.c \ w32_CancelableWait.c MUTEX_SRCS = \ @@ -148,6 +148,7 @@ SMALL_STATIC_OBJS = \ ptw32_getprocessors.obj \
ptw32_calloc.obj \
ptw32_new.obj \
+ ptw32_reuse.obj \ ptw32_rwlock_check_need_init.obj \
ptw32_cond_check_need_init.obj \
ptw32_mutex_check_need_init.obj \
@@ -170,6 +171,7 @@ SMALL_STATIC_OBJS = \ ptw32_increase_semaphore.obj \
ptw32_decrease_semaphore.obj \
signal.obj \
+ pthread_kill.obj \ ptw32_spinlock_check_need_init.obj \
pthread_spin_init.obj \
pthread_spin_destroy.obj \
@@ -230,11 +232,13 @@ EXIT_SRCS = \ MISC_SRCS = \
pthread_equal.c \
pthread_getconcurrency.c \
+ pthread_kill.c \ pthread_once.c \
pthread_self.c \
pthread_setconcurrency.c \
ptw32_calloc.c \
ptw32_new.c \
+ ptw32_reuse.c \ w32_CancelableWait.c
MUTEX_SRCS = \
diff --git a/Nmakefile.tests b/Nmakefile.tests index e914305..9a9f9a5 100644 --- a/Nmakefile.tests +++ b/Nmakefile.tests @@ -35,6 +35,7 @@ condvar3_1:: condvar3_1.c condvar3_2:: condvar3_2.c
condvar3_3:: condvar3_3.c
create1.:: create1.c
+create2.:: create2.c
cancel1:: cancel1.c
cancel2:: cancel2.c
mutex3:: mutex3.c
@@ -59,6 +60,7 @@ exit4:: exit4.c join0:: join0.c
join1:: join1.c
join2:: join2.c
+kill1:: kill1.c count1:: count1.c
once1:: once1.c
tsd1:: tsd1.c
@@ -72,6 +74,8 @@ condvar7:: condvar7.c condvar8:: condvar8.c
condvar9:: condvar9.c
errno1:: errno1.c
+reuse1.:: reuse1.c
+reuse2.:: reuse2.c
rwlock1:: rwlock1.c
rwlock2:: rwlock2.c
rwlock3:: rwlock3.c
@@ -117,6 +121,8 @@ benchtest2:: benchtest2.c benchtest3:: benchtest3.c
benchtest4:: benchtest4.c
benchtest5:: benchtest5.c
+valid1:: valid1.c +valid2:: valid2.c loadfree: :test:
semaphore1 :test: loadfree
@@ -126,12 +132,16 @@ mutex1 :test: loadfree mutex2 :test: loadfree
exit1 :test: loadfree
condvar1 :test: loadfree
+kill1 :test: loadfree condvar1_1 :test: condvar1
condvar1_2 :test: join2
self1 :test: loadfree
condvar2 :test: condvar1
condvar2_1 :test: condvar2
create1 :test: mutex2
+create2 :test: create1
+reuse1 :test: create2
+reuse2 :test: reuse1
cancel1 :test: create1
cancel2 :test: cancel1
mutex3 :test: create1
@@ -213,4 +223,6 @@ exception1 :test: cancel4 exception2 :test: exception1
exception3 :test: exception2
exit4 :test: exit3
+valid1 :test: join1 +valid2 :test: valid1 @@ -29,7 +29,10 @@ or, What are all these pthread*.dll and pthread*.lib files?
-------------------------------------------------------
-Simply, you only use one of them, but you need to choose carefully.
+Simple, use either pthreadGC.* if you use GCC, or pthreadVC.* if you
+use MSVC.
+
+Otherwise, you need to choose carefully and know WHY.
The most important choice you need to make is whether to use a
version that uses exceptions internally, or not (there are versions
@@ -53,9 +56,9 @@ since this appears to be the assumption commercial pthreads implementations make. Therefore, if you use an EH version
of pthreads-win32 then you may be under the illusion that
your application will be portable, when in fact it is likely to
-behave very differently linked with other pthreads libraries.
+behave differently when linked with other pthreads libraries.
-Now you may be asking: why have you kept the EH versions of
+Now you may be asking: then why have you kept the EH versions of
the library?
There are a couple of reasons:
@@ -338,6 +341,10 @@ from the FTP site (see under "Availability" below): pthreadGCE.a - derived from pthreadGCE.dll
pthreadGC.dll - built with Mingw32 GCC
pthreadGC.a - derived from pthreadGC.dll
+
+As of August 2003 pthreads-win32 is built and tested using the MinGW + MsysDTK
+environment current as of that date or later. The following file MAY be needed
+for older MinGW environments.
gcc.dll - needed to build and run applications that use
pthreadGCE.dll.
@@ -40,6 +40,7 @@ int ptw32_processInitialized = FALSE; +pthread_t ptw32_threadReuseTop = PTW32_THREAD_REUSE_BOTTOM; pthread_key_t ptw32_selfThreadKey = NULL; pthread_key_t ptw32_cleanupKey = NULL; pthread_cond_t ptw32_cond_list_head = NULL; @@ -56,6 +57,11 @@ PTW32_INTERLOCKED_LONG PTW32_INTERLOCKED_LONG) = NULL; /* + * Global lock for managing pthread_t struct reuse. + */ +CRITICAL_SECTION ptw32_thread_reuse_lock; + +/* * Global lock for testing internal state of PTHREAD_MUTEX_INITIALIZER * created mutexes. */ diff --git a/implement.h b/implement.h index 81c1e61..1f67af1 100644 --- a/implement.h +++ b/implement.h @@ -86,7 +86,7 @@ typedef enum { PThreadStateInitial = 0, /* Thread not running */ PThreadStateRunning, /* Thread alive & kicking */ PThreadStateSuspended, /* Thread alive but suspended */ - PThreadStateCanceling, /* Thread alive but and is */ + PThreadStateCanceling, /* Thread alive but is */ /* in the process of terminating */ /* due to a cancellation request */ PThreadStateException, /* Thread alive but exiting */ @@ -114,7 +114,8 @@ struct pthread_t_ { DWORD dummy[5]; #endif DWORD thread; - HANDLE threadH; + HANDLE threadH; /* POSIX thread is invalid if threadH == 0 */ + pthread_t prevReuse; /* Links threads on reuse stack */ PThreadState state; PThreadDemise demise; void *exitStatus; @@ -424,7 +425,11 @@ extern PTW32_INTERLOCKED_LONG (WINAPI *ptw32_interlocked_compare_exchange)(PTW32 PTW32_INTERLOCKED_LONG, PTW32_INTERLOCKED_LONG); +/* Thread Reuse stack bottom marker. Must not be NULL or any valid pointer to memory. */ +#define PTW32_THREAD_REUSE_BOTTOM ((pthread_t) 1) + extern int ptw32_processInitialized; +extern pthread_t ptw32_threadReuseTop; extern pthread_key_t ptw32_selfThreadKey; extern pthread_key_t ptw32_cleanupKey; extern pthread_cond_t ptw32_cond_list_head; @@ -434,6 +439,7 @@ extern int ptw32_mutex_default_kind; extern int ptw32_concurrency; +extern CRITICAL_SECTION ptw32_thread_reuse_lock; extern CRITICAL_SECTION ptw32_mutex_test_init_lock; extern CRITICAL_SECTION ptw32_cond_list_lock; extern CRITICAL_SECTION ptw32_cond_test_init_lock; @@ -486,7 +492,11 @@ void ptw32_pop_cleanup_all (int execute); pthread_t ptw32_new (void); -int ptw32_getprocessors(int * count); +pthread_t ptw32_threadReusePop (void); + +void ptw32_threadReusePush (pthread_t thread); + +int ptw32_getprocessors (int * count); #if ! defined (__MINGW32__) || defined (__MSVCRT__) unsigned __stdcall @@ -38,6 +38,7 @@ #include "implement.h" +#include "pthread_kill.c" #include "pthread_once.c" #include "pthread_self.c" #include "pthread_equal.c" @@ -45,5 +46,6 @@ #include "pthread_getconcurrency.c" #include "ptw32_new.c" #include "ptw32_calloc.c" +#include "ptw32_reuse.c" #include "w32_CancelableWait.c" @@ -1068,6 +1068,12 @@ PTW32_DLLPORT int pthread_rwlockattr_setpshared (pthread_rwlockattr_t * attr, #if PTW32_LEVEL >= PTW32_LEVEL_MAX - 1 /* + * Signal Functions. Should be defined in <signal.h> but MSVC and MinGW32 + * already have signal.h that don't define these. + */ +PTW32_DLLPORT int pthread_kill(pthread_t thread, int sig); + +/* * Non-portable functions */ diff --git a/pthread_cancel.c b/pthread_cancel.c index 7a94d8d..a9a9009 100644 --- a/pthread_cancel.c +++ b/pthread_cancel.c @@ -94,12 +94,13 @@ pthread_cancel (pthread_t thread) int cancel_self; pthread_t self; - if (thread == NULL ) + /* This is the proper way to test thread validity. */ + result = pthread_kill(thread, 0); + if (0 != result) { - return ESRCH; + return result; } - result = 0; if ((self = pthread_self()) == NULL) { return ENOMEM; diff --git a/pthread_detach.c b/pthread_detach.c index 423997d..a54a7e8 100644 --- a/pthread_detach.c +++ b/pthread_detach.c @@ -38,9 +38,15 @@ #include "pthread.h" #include "implement.h" +/* + * Not needed yet, but defining it should indicate clashes with build target + * environment that should be fixed. + */ +#include <signal.h> + int -pthread_detach (pthread_t tid) +pthread_detach (pthread_t thread) /* * ------------------------------------------------------ * DOCPUBLIC @@ -70,17 +76,21 @@ pthread_detach (pthread_t tid) { int result; - if (tid == NULL || - tid->detachState == PTHREAD_CREATE_DETACHED) + /* This is the proper way to test for a valid thread. */ + result = pthread_kill(thread, 0); + if (0 != result) { + return result; + } + if (thread->detachState == PTHREAD_CREATE_DETACHED) + { result = EINVAL; - } else { result = 0; - tid->detachState = PTHREAD_CREATE_DETACHED; + thread->detachState = PTHREAD_CREATE_DETACHED; } return (result); diff --git a/pthread_equal.c b/pthread_equal.c index 78851b9..b87b3a5 100644 --- a/pthread_equal.c +++ b/pthread_equal.c @@ -43,13 +43,13 @@ pthread_equal (pthread_t t1, pthread_t t2) /* * ------------------------------------------------------ * DOCPUBLIC - * This function returns zero if t1 and t2 are equal, else + * This function returns nonzero if t1 and t2 are equal, else * returns nonzero * * PARAMETERS * t1, * t2 - * references to an instances of thread_t + * thread IDs * * * DESCRIPTION diff --git a/pthread_getschedparam.c b/pthread_getschedparam.c index 081bfe3..125999a 100644 --- a/pthread_getschedparam.c +++ b/pthread_getschedparam.c @@ -43,11 +43,13 @@ pthread_getschedparam(pthread_t thread, int *policy, struct sched_param *param) { int prio; + int result; /* Validate the thread id. */ - if (thread == NULL || thread->threadH == 0) + result = pthread_kill(thread, 0); + if (0 != result) { - return ESRCH; + return result; } /* diff --git a/pthread_join.c b/pthread_join.c index 3c076e0..1c5663c 100644 --- a/pthread_join.c +++ b/pthread_join.c @@ -38,6 +38,12 @@ #include "pthread.h" #include "implement.h" +/* + * Not needed yet, but defining it should indicate clashes with build target + * environment that should be fixed. + */ +#include <signal.h> + int pthread_join (pthread_t thread, void **value_ptr) @@ -74,20 +80,27 @@ pthread_join (pthread_t thread, void **value_ptr) * ------------------------------------------------------ */ { - int result = 0; + int result; pthread_t self; + /* This is the proper way to test for a valid thread ID */ + result = pthread_kill(thread, 0); + if (0 != result) + { + return result; + } + self = pthread_self (); - if (self == NULL) + if (NULL == self) { return ENOENT; } - if (pthread_equal (self, thread) != 0) + if (0 != pthread_equal (self, thread)) { result = EDEADLK; } - else if (thread->detachState == PTHREAD_CREATE_DETACHED) + else if (PTHREAD_CREATE_DETACHED == thread->detachState) { result = EINVAL; } diff --git a/pthread_kill.c b/pthread_kill.c new file mode 100644 index 0000000..50fdd06 --- /dev/null +++ b/pthread_kill.c @@ -0,0 +1,99 @@ +/* + * pthread_kill.c + * + * Description: + * This translation unit implements the pthread_kill routine. + * + * -------------------------------------------------------------------------- + * + * Pthreads-win32 - POSIX Threads Library for Win32 + * Copyright(C) 1998 John E. Bossom + * Copyright(C) 1999,2002 Pthreads-win32 contributors + * + * Contact Email: rpj@ise.canberra.edu.au + * + * The current list of contributors is contained + * in the file CONTRIBUTORS included with the source + * code distribution. The list can also be seen at the + * following World Wide Web location: + * http://sources.redhat.com/pthreads-win32/contributors.html + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library in the file COPYING.LIB; + * if not, write to the Free Software Foundation, Inc., + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA + */ + +#include "pthread.h" +#include "implement.h" + +/* + * Not needed yet, but defining it should indicate clashes with build target + * environment that should be fixed. + */ +#include <signal.h> + +int +pthread_kill (pthread_t thread, int sig) + /* + * ------------------------------------------------------ + * DOCPUBLIC + * This function requests that a signal be delivered to the + * specified thread. If sig is zero, error checking is + * performed but no signal is actually sent such that this + * function can be used to check for a valid thread ID. + * + * PARAMETERS + * thread reference to an instances of pthread_t + * sig signal. Currently only a value of 0 is supported. + * + * + * DESCRIPTION + * This function requests that a signal be delivered to the + * specified thread. If sig is zero, error checking is + * performed but no signal is actually sent such that this + * function can be used to check for a valid thread ID. + * + * RESULTS + * ESRCH the thread is not a valid thread ID, + * EINVAL the value of the signal is invalid + * or unsupported. + * 0 the signal was successfully sent. + * + * ------------------------------------------------------ + */ +{ + int result = 0; + + EnterCriticalSection(&ptw32_thread_reuse_lock); + + if (NULL == thread + || NULL == thread->threadH + || THREAD_PRIORITY_ERROR_RETURN == GetThreadPriority(thread->threadH)) + { + result = ESRCH; + } + + LeaveCriticalSection(&ptw32_thread_reuse_lock); + + if (0 == result && 0 != sig) + { + /* + * Currently does not support any signals. + */ + result = EINVAL; + } + + return result; + +} /* pthread_kill */ diff --git a/pthread_setschedparam.c b/pthread_setschedparam.c index 1a24f1f..8eff605 100644 --- a/pthread_setschedparam.c +++ b/pthread_setschedparam.c @@ -43,11 +43,13 @@ pthread_setschedparam(pthread_t thread, int policy, const struct sched_param *param) { int prio; + int result; /* Validate the thread id. */ - if (thread == NULL || thread->threadH == 0) + result = pthread_kill(thread, 0); + if (0 != result) { - return ESRCH; + return result; } /* Validate the scheduling policy. */ diff --git a/ptw32_new.c b/ptw32_new.c index ca24ad7..5cbe0a7 100644 --- a/ptw32_new.c +++ b/ptw32_new.c @@ -43,7 +43,15 @@ ptw32_new (void) { pthread_t t; - t = (pthread_t) calloc (1, sizeof (*t)); + /* + * If there's a reusable pthread_t then use it. + */ + t = ptw32_threadReusePop(); + + if (NULL == t) + { + t = (pthread_t) calloc (1, sizeof (*t)); + } if (t != NULL) { @@ -59,7 +67,10 @@ ptw32_new (void) if (t->cancelEvent == NULL) { - free (t); + /* + * Thread ID structs are never freed. + */ + ptw32_threadReusePush(t); t = NULL; } } diff --git a/ptw32_processInitialize.c b/ptw32_processInitialize.c index 7c1818a..e402d72 100644 --- a/ptw32_processInitialize.c +++ b/ptw32_processInitialize.c @@ -89,6 +89,7 @@ ptw32_processInitialize (void) /* * Set up the global locks. */ + InitializeCriticalSection(&ptw32_thread_reuse_lock); InitializeCriticalSection(&ptw32_mutex_test_init_lock); InitializeCriticalSection(&ptw32_cond_list_lock); InitializeCriticalSection(&ptw32_cond_test_init_lock); diff --git a/ptw32_processTerminate.c b/ptw32_processTerminate.c index d816a4b..950598d 100644 --- a/ptw32_processTerminate.c +++ b/ptw32_processTerminate.c @@ -62,6 +62,9 @@ ptw32_processTerminate (void) * ------------------------------------------------------ */ { + pthread_t thread, + nextThread; + if (ptw32_processInitialized) { @@ -85,6 +88,18 @@ ptw32_processTerminate (void) ptw32_cleanupKey = NULL; } + EnterCriticalSection(&ptw32_thread_reuse_lock); + + thread = ptw32_threadReuseTop; + while (thread != PTW32_THREAD_REUSE_BOTTOM) + { + nextThread = thread->prevReuse; + free(thread); + thread = nextThread; + } + + LeaveCriticalSection(&ptw32_thread_reuse_lock); + /* * Destroy the global locks. */ @@ -93,6 +108,7 @@ ptw32_processTerminate (void) DeleteCriticalSection(&ptw32_cond_test_init_lock); DeleteCriticalSection(&ptw32_cond_list_lock); DeleteCriticalSection(&ptw32_mutex_test_init_lock); + DeleteCriticalSection(&ptw32_thread_reuse_lock); ptw32_processInitialized = FALSE; } diff --git a/ptw32_reuse.c b/ptw32_reuse.c new file mode 100644 index 0000000..f604d26 --- /dev/null +++ b/ptw32_reuse.c @@ -0,0 +1,94 @@ +/* + * ptw32_threadReuse.c + * + * Description: + * This translation unit implements miscellaneous thread functions. + * + * -------------------------------------------------------------------------- + * + * Pthreads-win32 - POSIX Threads Library for Win32 + * Copyright(C) 1998 John E. Bossom + * Copyright(C) 1999,2002 Pthreads-win32 contributors + * + * Contact Email: rpj@ise.canberra.edu.au + * + * The current list of contributors is contained + * in the file CONTRIBUTORS included with the source + * code distribution. The list can also be seen at the + * following World Wide Web location: + * http://sources.redhat.com/pthreads-win32/contributors.html + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library in the file COPYING.LIB; + * if not, write to the Free Software Foundation, Inc., + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA + */ + +#include "pthread.h" +#include "implement.h" + + +/* + * The thread reuse stack is a simple LIFO stack managed through a singly + * linked list element in the pthread_t struct. + * + * All thread structs on the stack are clean and ready for reuse. + * + * The pthread_t_ struct's prevReuse element can be tested to check for an invalid + * thread ID. A NULL value indicates a valid thread. Applications should use the + * pthread_kill() function with a zero signal value to test for a valid thread ID. + */ + +/* + * Pop a clean pthread_t struct off the reuse stack. + */ +pthread_t +ptw32_threadReusePop (void) +{ + pthread_t t; + + EnterCriticalSection(&ptw32_thread_reuse_lock); + + t = ptw32_threadReuseTop; + + if (PTW32_THREAD_REUSE_BOTTOM != t) + { + ptw32_threadReuseTop = t->prevReuse; + t->prevReuse = NULL; + } + else + { + t = NULL; + } + + LeaveCriticalSection(&ptw32_thread_reuse_lock); + + return t; + +} + +/* + * Push a clean pthread_t struct onto the reuse stack. + */ +void +ptw32_threadReusePush (pthread_t thread) +{ + EnterCriticalSection(&ptw32_thread_reuse_lock); + + memset(thread, 0, sizeof (*thread)); + thread->prevReuse = ptw32_threadReuseTop; + ptw32_threadReuseTop = thread; + + LeaveCriticalSection(&ptw32_thread_reuse_lock); +} + diff --git a/ptw32_threadDestroy.c b/ptw32_threadDestroy.c index 1c503a6..18dc6a9 100644 --- a/ptw32_threadDestroy.c +++ b/ptw32_threadDestroy.c @@ -42,6 +42,8 @@ void ptw32_threadDestroy (pthread_t thread) { + struct pthread_t_ threadCopy; + if (thread != NULL) { (void) pthread_mutex_lock(&thread->cancelLock); @@ -50,22 +52,33 @@ ptw32_threadDestroy (pthread_t thread) ptw32_callUserDestroyRoutines (thread); - if (thread->cancelEvent != NULL) - { - CloseHandle (thread->cancelEvent); - } + /* + * Copy thread state so that the thread can be atomically NULLed. + */ + memcpy(&threadCopy, thread, sizeof(threadCopy)); + + /* + * Thread ID structs are never freed. They're NULLed and reused. + * This also sets the thread to PThreadStateInitial (invalid). + */ + ptw32_threadReusePush(thread); + + /* Now work on the copy. */ + if (threadCopy.cancelEvent != NULL) + { + CloseHandle (threadCopy.cancelEvent); + } - (void) pthread_mutex_destroy(&thread->cancelLock); + (void) pthread_mutex_destroy(&threadCopy.cancelLock); #if ! defined (__MINGW32__) || defined (__MSVCRT__) /* See documentation for endthread vs endthreadex. */ - if( thread->threadH != 0 ) - { - CloseHandle( thread->threadH ); - } + if( threadCopy.threadH != 0 ) + { + CloseHandle( threadCopy.threadH ); + } #endif - free (thread); } } /* ptw32_threadDestroy */ @@ -164,11 +164,6 @@ pthread_sigmask(int how, sigset_t const *set, sigset_t *oset) return 0; } -int pthread_kill(pthread_t thread, - int signo) -{ -} - int sigwait(const sigset_t *set, int *sig) { diff --git a/tests/ChangeLog b/tests/ChangeLog index fb52cef..7dd3076 100644 --- a/tests/ChangeLog +++ b/tests/ChangeLog @@ -1,16 +1,25 @@ -2003-07-19 Ross Johnson <ross@ise.canberra.edu.au>
+2003-08-13 Ross Johnson <rpj@ise.canberra.edu.au>
- * eyal1.c (waste_time): Make threads do more work to ensure that - all threads get to do some work. - * semaphore1.c: Make it clear that certain errors are expected. - * exception2.c (non_MSVC code sections): Change to include - C++ standard include file, i.e. change <new.h> to <exception>. - * exception3.c (non_MSVC code sections): Likewise; qualify std:: - namespace entities where necessary. - * GNUmakefile: modified to work in the MsysDTK (newer MinGW) - environment; define CC as gcc or g++ as appropriate because - using gcc -x c++ doesn't link with required c++ libs by default, - but g++ does. + * reuse1.c: New test. + * reuse1.c: New test. + * valid1.c: New test. + * valid2.c: New test. + * kill1.c: New test. + * create2.c: Now included in test regime. + +2003-07-19 Ross Johnson <rpj@ise.canberra.edu.au>
+ + * eyal1.c (waste_time): Make threads do more work to ensure that
+ all threads get to do some work.
+ * semaphore1.c: Make it clear that certain errors are expected.
+ * exception2.c (non_MSVC code sections): Change to include
+ C++ standard include file, i.e. change <new.h> to <exception>.
+ * exception3.c (non_MSVC code sections): Likewise; qualify std::
+ namespace entities where necessary.
+ * GNUmakefile: modified to work in the MsysDTK (newer MinGW)
+ environment; define CC as gcc or g++ as appropriate because
+ using gcc -x c++ doesn't link with required c++ libs by default,
+ but g++ does.
2002-12-11 Ross Johnson <ross@special.ise.canberra.edu.au>
diff --git a/tests/GNUmakefile b/tests/GNUmakefile index 132f84b..ba4c78d 100644 --- a/tests/GNUmakefile +++ b/tests/GNUmakefile @@ -64,7 +64,9 @@ COPYFILES = $(HDR) $(LIB) $(DLL) TESTS = loadfree \ semaphore1 semaphore2 self1 mutex5 mutex1 mutex1e mutex1n mutex1r \ - condvar1 condvar1_1 condvar1_2 condvar2 condvar2_1 exit1 create1 equal1 \ + condvar1 condvar1_1 condvar1_2 condvar2 condvar2_1 exit1 \ + create1 create2 reuse1 reuse2 equal1 \ + kill1 valid1 valid2 \ exit2 exit3 \ join0 join1 join2 \ mutex2 mutex3 mutex4 mutex6 mutex6n mutex6e mutex6r \ @@ -164,6 +166,7 @@ condvar9.pass: condvar8.pass context1.pass: cancel2.pass count1.pass: join1.pass create1.pass: mutex2.pass +create2.pass: create1.pass delay1.pass: cancel2.pass delay2.pass: delay1.pass equal1.pass: create1.pass @@ -179,6 +182,7 @@ inherit1.pass: join1.pass join0.pass: create1.pass join1.pass: create1.pass join2.pass: create1.pass +kill1.pass: loadfree.pass: pthread.dll mutex1.pass: self1.pass mutex1n.pass: mutex1.pass @@ -203,6 +207,8 @@ mutex8r.pass: mutex7r.pass once1.pass: create1.pass priority1.pass: join1.pass priority2.pass: priority1.pass +reuse1.pass: create2.pass +reuse2.pass: reuse1.pass rwlock1.pass: condvar6.pass rwlock2.pass: rwlock1.pass rwlock3.pass: rwlock2.pass @@ -225,6 +231,8 @@ spin2.pass: spin1.pass spin3.pass: spin2.pass spin4.pass: spin3.pass tsd1.pass: join1.pass +valid1.pass: join1.pass +valid2.pass: valid1.pass #%.pass: %.exe $(HDR) %.pass: %.exe $(LIB) $(DLL) $(HDR) diff --git a/tests/Makefile b/tests/Makefile index 014b767..e16d21a 100644 --- a/tests/Makefile +++ b/tests/Makefile @@ -74,7 +74,8 @@ PASSES= loadfree.pass \ semaphore1.pass semaphore2.pass self1.pass mutex5.pass \
mutex1.pass mutex1n.pass mutex1e.pass mutex1r.pass mutex2.pass mutex3.pass \
condvar1.pass condvar1_1.pass condvar1_2.pass condvar2.pass condvar2_1.pass \
- exit1.pass create1.pass equal1.pass \
+ exit1.pass create1.pass create2.pass reuse1.pass reuse2.pass equal1.pass \
+ kill1.pass valid1.pass valid2.pass \ exit2.pass exit3.pass \
join0.pass join1.pass join2.pass \
mutex4.pass mutex6.pass mutex6n.pass mutex6e.pass mutex6r.pass \
@@ -232,6 +233,7 @@ condvar9.pass: condvar8.pass context1.pass: cancel2.pass
count1.pass: join1.pass
create1.pass: mutex2.pass
+create2.pass: create1.pass
delay1.pass:
delay2.pass: delay1.pass
equal1.pass: create1.pass
@@ -247,6 +249,7 @@ inherit1.pass: join1.pass join0.pass: create1.pass
join1.pass: create1.pass
join2.pass: create1.pass
+kill1.pass: loadfree.pass: pthread.dll
mutex1.pass: self1.pass
mutex1n.pass: mutex1.pass
@@ -271,6 +274,8 @@ mutex8r.pass: mutex7r.pass once1.pass: create1.pass
priority1.pass: join1.pass
priority2.pass: priority1.pass
+reuse1.pass: create2.pass
+reuse2.pass: reuse1.pass
rwlock1.pass: condvar6.pass
rwlock2.pass: rwlock1.pass
rwlock3.pass: rwlock2.pass
@@ -293,3 +298,5 @@ spin2.pass: spin1.pass spin3.pass: spin2.pass
spin4.pass: spin3.pass
tsd1.pass: join1.pass
+valid1.pass: join1.pass +valid2.pass: valid1.pass diff --git a/tests/create2.c b/tests/create2.c index ea2979f..d23d19f 100644 --- a/tests/create2.c +++ b/tests/create2.c @@ -76,16 +76,13 @@ #include "test.h" enum { - NUMTHREADS = 10000; + NUMTHREADS = 10000 }; static int washere = 0; void * func(void * arg) { - HANDLE w32ThreadH = (pthread_self())->threadH; - - assert(w32ThreadH != 0); washere = 1; return (void *) 0; } @@ -96,6 +93,7 @@ main() pthread_t t; pthread_attr_t attr; void * result = NULL; + int i; pthread_attr_init(&attr); pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_JOINABLE); diff --git a/tests/exception2.c b/tests/exception2.c index 36edd9c..35ae606 100644 --- a/tests/exception2.c +++ b/tests/exception2.c @@ -78,7 +78,7 @@ #if defined(_MSC_VER) && defined(__cplusplus) #include <eh.h> -#else +#elif defined(__cplusplus) #include <exception> #endif diff --git a/tests/kill1.c b/tests/kill1.c new file mode 100644 index 0000000..28d0c6b --- /dev/null +++ b/tests/kill1.c @@ -0,0 +1,87 @@ +/*
+ * File: kill.c
+ *
+ *
+ * --------------------------------------------------------------------------
+ *
+ * --------------------------------------------------------------------------
+ *
+ * Pthreads-win32 - POSIX Threads Library for Win32
+ * Copyright(C) 998 John E. Bossom
+ * Copyright(C) 999,22 Pthreads-win32 contributors
+ *
+ * Contact Email: rpj@ise.canberra.edu.au
+ *
+ * The current list of contributors is contained
+ * in the file CONTRIBUTORS included with the source
+ * code distribution. The list can also be seen at the
+ * following World Wide Web location:
+ * http://sources.redhat.com/pthreads-win32/contributors.html
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library in the file COPYING.LIB;
+ * if not, write to the Free Software Foundation, Inc.,
+ * 9 Temple Place - Suite 33, Boston, MA 2-37, USA
+ *
+ * --------------------------------------------------------------------------
+ *
+ * Test Synopsis:
+ * - pthread_kill() does not support non zero signals.. + *
+ * Test Method (Validation or Falsification):
+ * -
+ *
+ * Requirements Tested:
+ * -
+ *
+ * Features Tested:
+ * -
+ *
+ * Cases Tested:
+ * -
+ *
+ * Description:
+ * -
+ *
+ * Environment:
+ * -
+ *
+ * Input:
+ * - None.
+ *
+ * Output:
+ * - File name, Line number, and failed expression on failure.
+ * - No output on success.
+ *
+ * Assumptions:
+ * -
+ *
+ * Pass Criteria:
+ * - Process returns zero exit status.
+ *
+ * Fail Criteria:
+ * - Process returns non-zero exit status.
+ */
+ +#include "test.h"
+ + +int
+main()
+{
+ void * result = NULL;
+ + assert(pthread_kill(pthread_self(), ) == EINVAL); + + return ;
+}
diff --git a/tests/reuse1.c b/tests/reuse1.c new file mode 100644 index 0000000..f56ac9d --- /dev/null +++ b/tests/reuse1.c @@ -0,0 +1,119 @@ +/*
+ * File: reuse.c
+ *
+ *
+ * --------------------------------------------------------------------------
+ *
+ * --------------------------------------------------------------------------
+ *
+ * Pthreads-win32 - POSIX Threads Library for Win32
+ * Copyright(C) 998 John E. Bossom
+ * Copyright(C) 999,22 Pthreads-win32 contributors
+ *
+ * Contact Email: rpj@ise.canberra.edu.au
+ *
+ * The current list of contributors is contained
+ * in the file CONTRIBUTORS included with the source
+ * code distribution. The list can also be seen at the
+ * following World Wide Web location:
+ * http://sources.redhat.com/pthreads-win32/contributors.html
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library in the file COPYING.LIB;
+ * if not, write to the Free Software Foundation, Inc.,
+ * 9 Temple Place - Suite 33, Boston, MA 2-37, USA
+ *
+ * --------------------------------------------------------------------------
+ *
+ * Test Synopsis:
+ * - Confirm that thread reuse works for joined threads.
+ *
+ * Test Method (Validation or Falsification):
+ * -
+ *
+ * Requirements Tested:
+ * -
+ *
+ * Features Tested:
+ * -
+ *
+ * Cases Tested:
+ * -
+ *
+ * Description:
+ * -
+ *
+ * Environment:
+ * -
+ *
+ * Input:
+ * - None.
+ *
+ * Output:
+ * - File name, Line number, and failed expression on failure.
+ * - No output on success.
+ *
+ * Assumptions:
+ * -
+ *
+ * Pass Criteria:
+ * - Process returns zero exit status.
+ *
+ * Fail Criteria:
+ * - Process returns non-zero exit status.
+ */
+ +#include "test.h"
+ +enum {
+ NUMTHREADS =
+};
+ +static int washere = ;
+ +void * func(void * arg)
+{
+ washere = ;
+ return (void *) ;
+}
+
+int
+main()
+{
+ pthread_t t, + last_t;
+ pthread_attr_t attr;
+ void * result = NULL;
+ int i; + + pthread_attr_init(&attr);
+ pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_JOINABLE);
+ + washere = ;
+ assert(pthread_create(&t, &attr, func, NULL) == );
+ pthread_join(t, &result);
+ assert(washere == );
+ last_t = t; + + for (i = ; i < NUMTHREADS; i++)
+ {
+ washere = ;
+ assert(pthread_create(&t, &attr, func, NULL) == );
+ pthread_join(t, &result);
+ assert(washere == );
+ assert(t == last_t); + last_t = t; + }
+ + return ;
+}
diff --git a/tests/reuse2.c b/tests/reuse2.c new file mode 100644 index 0000000..341dfcc --- /dev/null +++ b/tests/reuse2.c @@ -0,0 +1,162 @@ +/*
+ * File: reuse2.c
+ *
+ *
+ * --------------------------------------------------------------------------
+ *
+ * --------------------------------------------------------------------------
+ *
+ * Pthreads-win32 - POSIX Threads Library for Win32
+ * Copyright(C) 998 John E. Bossom
+ * Copyright(C) 999,22 Pthreads-win32 contributors
+ *
+ * Contact Email: rpj@ise.canberra.edu.au
+ *
+ * The current list of contributors is contained
+ * in the file CONTRIBUTORS included with the source
+ * code distribution. The list can also be seen at the
+ * following World Wide Web location:
+ * http://sources.redhat.com/pthreads-win32/contributors.html
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library in the file COPYING.LIB;
+ * if not, write to the Free Software Foundation, Inc.,
+ * 9 Temple Place - Suite 33, Boston, MA 2-37, USA
+ *
+ * --------------------------------------------------------------------------
+ *
+ * Test Synopsis:
+ * - Test that thread reuse works for detached threads. + * - Analyse thread struct reuse.
+ *
+ * Test Method (Validation or Falsification):
+ * -
+ *
+ * Requirements Tested:
+ * -
+ *
+ * Features Tested:
+ * -
+ *
+ * Cases Tested:
+ * -
+ *
+ * Description:
+ * -
+ *
+ * Environment:
+ * -
+ *
+ * Input:
+ * - None.
+ *
+ * Output:
+ * - File name, Line number, and failed expression on failure.
+ * - No output on success.
+ *
+ * Assumptions:
+ * -
+ *
+ * Pass Criteria:
+ * - Process returns zero exit status.
+ *
+ * Fail Criteria:
+ * - Process returns non-zero exit status.
+ */
+ +#include "test.h"
+ +enum {
+ NUMTHREADS =
+};
+ + +static int done = ; + +void * func(void * arg)
+{
+ sched_yield(); + + InterlockedIncrement((void *) &done); + + return (void *) ;
+}
+
+int
+main()
+{
+ pthread_t t[NUMTHREADS]; + pthread_attr_t attr;
+ int i, j; + int reuse, + reuseMax = , + reuseMin = NUMTHREADS, + idTotal = ; + + pthread_attr_init(&attr);
+ pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
+ + for (i = ; i < NUMTHREADS; i++)
+ {
+ assert(pthread_create(&t[i], &attr, func, NULL) == );
+ }
+ + while (NUMTHREADS > done) + Sleep(); + + /* + * Analyse reuse by computing min and max times pthread_create() + * returned the same pthread_t value. + */ + for (i = ; i < NUMTHREADS; i++) + { + reuse = ; + + if (t[i] == NULL) + continue; + + for (j = ; j < i; j++) + { + if (t[j] == t[i]) + { + reuse++; + t[j] = NULL; + } + } + for (j = i + ; j < NUMTHREADS; j++) + { + if (t[j] == t[i]) + { + reuse++; + t[j] = NULL; + } + } + if (reuseMax < reuse) + reuseMax = reuse; + if (reuseMin > reuse) + reuseMin = reuse; + } + + for (i = ; i < NUMTHREADS; i++) + { + if (t[i] != NULL) + idTotal++; + } + + printf("For %d total threads:\n", NUMTHREADS); + printf("Reuse maximum = %d\n", reuseMax); + printf("Reuse minimum = %d\n", reuseMin); + printf("Total thread IDs allocated = %d\n", idTotal); + + return ;
+}
diff --git a/tests/valid1.c b/tests/valid1.c new file mode 100644 index 0000000..acaaa82 --- /dev/null +++ b/tests/valid1.c @@ -0,0 +1,104 @@ +/*
+ * File: valid.c
+ *
+ *
+ * --------------------------------------------------------------------------
+ *
+ * --------------------------------------------------------------------------
+ *
+ * Pthreads-win32 - POSIX Threads Library for Win32
+ * Copyright(C) 998 John E. Bossom
+ * Copyright(C) 999,22 Pthreads-win32 contributors
+ *
+ * Contact Email: rpj@ise.canberra.edu.au
+ *
+ * The current list of contributors is contained
+ * in the file CONTRIBUTORS included with the source
+ * code distribution. The list can also be seen at the
+ * following World Wide Web location:
+ * http://sources.redhat.com/pthreads-win32/contributors.html
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library in the file COPYING.LIB;
+ * if not, write to the Free Software Foundation, Inc.,
+ * 9 Temple Place - Suite 33, Boston, MA 2-37, USA
+ *
+ * --------------------------------------------------------------------------
+ *
+ * Test Synopsis:
+ * - Test that thread validation works. + *
+ * Test Method (Validation or Falsification):
+ * -
+ *
+ * Requirements Tested:
+ * -
+ *
+ * Features Tested:
+ * -
+ *
+ * Cases Tested:
+ * -
+ *
+ * Description:
+ * -
+ *
+ * Environment:
+ * -
+ *
+ * Input:
+ * - None.
+ *
+ * Output:
+ * - File name, Line number, and failed expression on failure.
+ * - No output on success.
+ *
+ * Assumptions:
+ * -
+ *
+ * Pass Criteria:
+ * - Process returns zero exit status.
+ *
+ * Fail Criteria:
+ * - Process returns non-zero exit status.
+ */
+ +#include "test.h"
+ +enum {
+ NUMTHREADS =
+};
+ +static int washere = ;
+ +void * func(void * arg)
+{
+ washere = ;
+ return (void *) ;
+}
+
+int
+main()
+{
+ pthread_t t; + void * result = NULL;
+ + washere = ;
+ assert(pthread_create(&t, NULL, func, NULL) == );
+ pthread_join(t, &result);
+ assert(washere == );
+ sched_yield(); + assert(pthread_kill(t, ) == ESRCH); + + return ;
+}
diff --git a/tests/valid2.c b/tests/valid2.c new file mode 100644 index 0000000..e1f9131 --- /dev/null +++ b/tests/valid2.c @@ -0,0 +1,91 @@ +/*
+ * File: valid2.c
+ *
+ *
+ * --------------------------------------------------------------------------
+ *
+ * --------------------------------------------------------------------------
+ *
+ * Pthreads-win32 - POSIX Threads Library for Win32
+ * Copyright(C) 998 John E. Bossom
+ * Copyright(C) 999,22 Pthreads-win32 contributors
+ *
+ * Contact Email: rpj@ise.canberra.edu.au
+ *
+ * The current list of contributors is contained
+ * in the file CONTRIBUTORS included with the source
+ * code distribution. The list can also be seen at the
+ * following World Wide Web location:
+ * http://sources.redhat.com/pthreads-win32/contributors.html
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library in the file COPYING.LIB;
+ * if not, write to the Free Software Foundation, Inc.,
+ * 9 Temple Place - Suite 33, Boston, MA 2-37, USA
+ *
+ * --------------------------------------------------------------------------
+ *
+ * Test Synopsis:
+ * - Confirm that thread validation fails for garbage thread ID. + *
+ * Test Method (Validation or Falsification):
+ * -
+ *
+ * Requirements Tested:
+ * -
+ *
+ * Features Tested:
+ * -
+ *
+ * Cases Tested:
+ * -
+ *
+ * Description:
+ * -
+ *
+ * Environment:
+ * -
+ *
+ * Input:
+ * - None.
+ *
+ * Output:
+ * - File name, Line number, and failed expression on failure.
+ * - No output on success.
+ *
+ * Assumptions:
+ * -
+ *
+ * Pass Criteria:
+ * - Process returns zero exit status.
+ *
+ * Fail Criteria:
+ * - Process returns non-zero exit status.
+ */
+ +#include "test.h"
+ + +int
+main()
+{
+ pthread_t t; + + t = (pthread_t) malloc(sizeof(t));; + + assert(t != NULL); + memset(t, xA, sizeof(t)); + assert(pthread_kill(t, ) == ESRCH); + + return ;
+}
|