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2004-09-13Clarify behaviour and remove some redundant code - see ChangeLogsrpj
2004-06-22Add PTHREAD_{RECURSIVE,ERRORCHECK}_MUTEX_INITIALIZER{,_NP}snap-2004-06-22rpj
2004-05-22Administrative changesrpj
2004-05-20Administrative fixesrpj
2004-05-17re-indentation, bug fixes, hooks for pre-emptive async cancelationrpj
2003-09-18Cleanup and fixes to thread priority management. Other minor changes.snap-2003-09-18rpj
2003-09-02Allow cancelation of waiting implicit threads.rpj
2003-09-02Added cancelation of/from non-POSIX threads; minor fixes; minor changes.snap-2003-09-03rpj
2003-08-19Fix accidental corruption of some test cases.snap-2003-08-19rpj
2003-08-19Updated Copyright notice (date and contact address).rpj
2003-08-14Reuse of thread IDs, improved thread ID validation, new tests, bug fixes.rpj
2002-06-03An attempt to get sem_getvalue working properly.rpj
2002-03-02Changes to documentation and makefiles.rpj
2002-03-02 * errno.c: Compiler directive was incorrectly including code.rpj
* 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.
2002-02-27 * exception3.c (terminateFunction): For MSVC++, callrpj
exit() rather than pthread_exit(). Add comments to explain why. * rwlock2_t.c: New test. * rwlock3_t.c: New test. * rwlock4_t.c: New test. * rwlock5_t.c: New test. * rwlock6_t.c: New test. * rwlock6_t2.c: New test. * rwlock6.c (main): Swap thread and result variables to correspond to actual thread functions. * rwlock1.c: Change test description comment to correspond to the actual test.
2002-02-18Major reorganisation of source code; new routine and tests added.rpj
2002-02-08Copyright notice updates; module splitting; POSIX versionrpj
conditional compilation; refinements; bug fixes. See the ChangeLog.
2002-02-02 * cancel.c: Rearranged some code and introduced checksrpj
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. tests/ * mutex8: New test. * mutex8n: New test. * mutex8e: New test. * mutex8r: New test. * cancel6a: New test. * cancel6d: New test. * cleanup0.c: Add pragmas for inline optimisation control. * cleanup1.c: Add pragmas for inline optimisation control. * cleanup2.c: Add pragmas for inline optimisation control. * cleanup3.c: Add pragmas for inline optimisation control. * condvar7.c: Add pragmas for inline optimisation control. * condvar8.c: Add pragmas for inline optimisation control. * condvar9.c: Add pragmas for inline optimisation control.
2002-01-312002-01-27 Ross Johnson <rpj@special.ise.canberra.edu.au>rpj
* 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.
2002-01-13 * attr.c (pthread_attr_setscope): Fix struct pointerrpj
indirection error introduced 2002-01-04. (pthread_attr_getscope): Likewise. * pthread.dsp (SOURCE): Add missing source files. ./tests/: * exception3.c (main): Shorten wait time. * mutex7.c: New test. * mutex7n.c: New test. * mutex7e.c: New test. * mutex7r.c: New test. * mutex6.c: Modified to avoid leaving the locked mutex around on exit.
2001-10-25 * barrier.c: Move _LONG and _LPLONG defines intorpj
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.
2001-07-08Barriers fixed and tested more extensively.rpj
* 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. tests/ChangeLog: * barrier3.c: Fixed. * barrier4.c: Fixed. * barrier5.c: New; proves that all threads in the group reaching the barrier wait and then resume together. Repeats the test using groups of 1 to 16 threads. Each group of threads must negotiate a large number of barriers (10000). * spin4.c: Fixed. * test.h (error_string): Modified the success (0) value.
2001-07-05 * barrier.c: Remove static initialisation - irreleventrpj
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(). tests/ChangeLog: * spin1.c: New; testing spinlocks. * spin2.c: New; testing spinlocks. * spin3.c: New; testing spinlocks. * spin4.c: New; testing spinlocks. * barrier1.c: New; testing barriers. * barrier2.c: New; testing barriers. * barrier3.c: New; testing barriers. * barrier4.c: New; testing barriers. * GNUmakefile: Add new tests. * Makefile: Add new tests.
2001-07-03Cosmetic changes.rpj
2001-07-012001-07-01 Ross Johnson <rpj@setup1.ise.canberra.edu.au>rpj
Contributed by - Alexander Terekhov. * 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. tests/ChangeLog: 2001-07-01 Ross Johnson <rpj@special.ise.canberra.edu.au> * benchtest3.c: New; timing mutexes. * benchtest4.c: New; time mutexes. * condvar3_1.c: Fixed bug - Alexander Terekhov * condvar3_3.c: New test. 2001-06-25 Ross Johnson <rpj@special.ise.canberra.edu.au> * priority1.c: New test. * priority2.c: New test. * inherit1.c: New test. * benchtest1.c: New; timing mutexes. * benchtest2.c: New; timing mutexes. * mutex4.c: Modified to test all mutex types.
2001-07-012001-06-25 Ross Johnson <rpj@setup1.ise.canberra.edu.au>rpj
* 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 Ross Johnson <rpj@setup1.ise.canberra.edu.au> Contributed by - Ralf Brese <Ralf.Brese@pdb4.siemens.de> * create.c (pthread_create): Set thread priority from thread attributes.
2001-06-03pthreads:rpj
2001-06-03 Ross Johnson <rpj@setup1.ise.canberra.edu.au> Contributed by - 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. pthreads/tests: 2001-06-3 Ross Johnson <rpj@special.ise.canberra.edu.au> * condvar2_1.c: New test. * condvar3_1.c: New test. * condvar3_2.c: New test.
2001-05-312001-05-30 Ross Johnson <rpj@setup1.ise.canberra.edu.au>rpj
* 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 Ross Johnson <rpj@setup1.ise.canberra.edu.au> Contributed by - 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 Ross Johnson <rpj@setup1.ise.canberra.edu.au> Contributed by - 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 Ross Johnson <rpj@special.ise.canberra.edu.au> Contributed by - 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./ChangeLog: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. ./tests/ChangeLog: 2000-12-29 Ross Johnson <rpj@special.ise.canberra.edu.au> * GNUmakefile: Add mutex4 test; ensure libpthreadw32.a is removed for "clean" target. * Makefile: Add mutex4 test. * exception3.c: Remove SEH code; automatically pass the test under SEH (which is an N/A environment). * mutex4.c: New test. * eyal1.c (do_work_unit): Add a dummy "if" to force the optimiser to retain code; reduce thread work loads. * condvar8.c (main): Add an additional "assert" for debugging; increase pthread_cond_signal timeout.
2000-12-28./ChangeLog:rpj
2000-12-28 Ross Johnson <rpj@special.ise.canberra.edu.au> * 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. 2000-09-09 Ross Johnson <rpj@special.ise.canberra.edu.au> * pthread.h (ctime_r): Fix arg. ./tests/ChangeLog: 2000-12-28 Ross Johnson <rpj@special.ise.canberra.edu.au> * eyal1.c: Increase thread work loads. * exception2.c: New test. * exception3.c: New test. * Makefile: Add new tests exception2.c and exception3.c. * GNUmakefile: Likewise. 2000-12-11 Ross Johnson <rpj@special.ise.canberra.edu.au> * cleanup3.c: Remove unused variable. * cleanup2.c: Likewise. * exception1.c: Throw an exception rather than use a deliberate zero divide so that catch(...) will handle it under Mingw32. Mingw32 now builds the library correctly to pass all tests - see Thomas Pfaff's detailed instructions re needed changes to Mingw32 in the Pthreads-Win32 FAQ.
2000-09-072000-09-08 Ross Johnson <rpj@special.ise.canberra.edu.au>rpj
* 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.
2000-08-142000-08-13 Ross Johnson <rpj@special.ise.canberra.edu.au>rpj
* 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. tests/ChangeLog: 2000-08-13 Ross Johnson <rpj@special.ise.canberra.edu.au> * condvar3.c: Minor change to eliminate compiler warning. * condvar4.c: ditto. * condvar5.c: ditto. * condvar6.c: ditto. * condvar7.c: ditto. * condvar8.c: ditto. * condvar9.c: ditto. * exit1.c: Function needed return statement. * cleanup1.c: Remove unnecessary printf arg. * cleanup2.c: Fix cast. * rwlock6.c: Fix casts. * exception1.c (PtW32CatchAll): Had the wrong name; fix casts. * cancel3.c: Remove unused waitLock variable. * GNUmakefile: Change library/dll naming; add new tests; general minor changes. * Makefile: Change library/dll naming; add targets for testing each of the two VC++ EH scheme versions; default target now issues help message; compile warnings now interpreted as errors to stop the make; add new tests; restructure to remove prerequisites needed otherwise. * README: Updated.
2000-08-112000-08-10 Ross Johnson <rpj@special.ise.canberra.edu.au>snap-2000-08-10rpj
* cleanup.c (pthread_pop_cleanup): Remove _pthread prefix from __except and catch keywords; implement.h now simply undefines _pthread__except and _pthread_catch if defined; VC++ was not textually substituting _pthread_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 (_pthread_threadStart): Ditto. (_pthread_callUserDestroyRoutines): Ditto. * implement.h (_pthread__except): Remove #define. (_pthread_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. tests/ChangeLog: 2000-08-10 Ross Johnson <rpj@special.ise.canberra.edu.au> * eyal1.c (main): Change implicit cast to explicit cast when passing "print_server" function pointer; G++ no longer allows implicit func parameter casts. * cleanup1.c: Remove unused "waitLock". (main): Fix implicit parameter cast. * cancel2.c (main): Fix implicit parameter cast. * cancel4.c (main): Fix implicit parameter cast. * cancel3.c (main): Fix implicit parameter cast. * GNUmakefile: Renamed from Makefile; Add missing cancel1 and cancel2 test targets. * Makefile: Converted for use with MS nmake.
2000-08-062000-08-06 Ross Johnson <rpj@special.ise.canberra.edu.au>rpj
* 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 Pthread_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. tests: 2000-08-06 Ross Johnson <rpj@special.ise.canberra.edu.au> * ccl.bat: Add /nologo to remove extraneous output. * exception1.c (exceptionedThread): Init 'dummy'; put expression into if condition to prevent optimising away; remove unused variable. * cancel4.c (mythread): Cast return value to avoid warnings. * cancel2.c (mythread): Missing #endif. * condvar9.c (mythread): Cast return value to avoid warnings. * condvar8.c (mythread): Cast return value to avoid warnings. * condvar7.c (mythread): Cast return value to avoid warnings. * cleanup3.c (mythread): Cast return value to avoid warnings. * cleanup2.c (mythread): Cast return value to avoid warnings. * cleanup1.c (mythread): Cast return value to avoid warnings. * condvar5.c (mythread): Cast return value to avoid warnings. * condvar3.c (mythread): Cast return value to avoid warnings. * condvar6.c (mythread): Cast return value to avoid warnings. * condvar4.c (mythread): Cast return value to avoid warnings. 2000-08-05 Ross Johnson <rpj@special.ise.canberra.edu.au> * cancel2.c: Use PtW32CatchAll macro if defined. * exception1.c: Use PtW32CatchAll macro if defined. 2000-08-02 Ross Johnson <rpj@special.ise.canberra.edu.au> * tsd1.c: Fix typecasts of &result [g++ is now very fussy]. * test.h (assert): Return 0's explicitly to allay g++ errors. * join2.c: Add explicit typecasts. * join1.c: Add explicit typecasts. * join0.c: Add explicit typecasts. * eyal1.c: Add explicit typecasts. * count1.c (main): Add type cast to remove g++ parse warning [gcc-2.95.2 seems to have tightened up on this]. * Makefile (GLANG): Use c++ explicitly. Remove MSVC sections (was commented out). Add target to generate cpp output.
2000-07-252000-07-25 Ross Johnson <rpj@special.ise.canberra.edu.au>rpj
* sched.c (sched_get_priority_max): Handle different WinCE and Win32 priority values together. (sched_get_priority_min): Ditto. - Tristan Savatier <tristan@mpegtv.com> * 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 (_pthread_threadStart): Initialise ei[]. (_pthread_threadStart): When beginthread is used to start the thread, force waiting until the creator thread had the thread handle. * cancel.c (_pthread_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 (_pthread_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 (_pthread_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. tests/ChangeLog: 2000-07-25 Ross Johnson <rpj@special.ise.canberra.edu.au> * runtest.bat: modified to work under W98. * runall.bat: Add new tests; modified to work under W98. It was ok under NT. * Makefile: Add new tests. * exception1.c: New; Test passing exceptions back to the application and retaining library internal exceptions. * join0.c: New; Test a single join.
2000-01-06New cleanup handler execution tests.rpj
2000-01-04Main changes (see ChangeLog diff for details and attributions):-rpj
- asynchronous cancellation added - attempt to hide internal exceptions from applications - kernel32 load/free problem fixed - new tests - changes only to comments in some tests
1999-10-30./ChangeLog:rpj
1999-10-30 Ross Johnson <rpj@ixobrychus.canberra.edu.au> * 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: - Erik Hensema <erik.hensema@group2000.nl> 1999-10-23 Ross Johnson <rpj@ixobrychus.canberra.edu.au> * pthread.h (ctime_r): Fix incorrect argument "_tm" - Erik Hensema <erik.hensema@group2000.nl> tests/ChangeLog: 1999-10-30 Ross Johnson <rpj@ixobrychus.canberra.edu.au> * cancel1.c: New. Test pthread_setcancelstate and pthread_setcanceltype functions. * eyal1.c (waste_time): Change calculation to avoid FP exception on Aplhas - Rich Peters <rpeters@micro-magic.com>
1999-10-161999-10-17 Ross Johnson <rpj@ixobrychus.canberra.edu.au>rpj
* 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 Ross Johnson <rpj@ixobrychus.canberra.edu.au> * 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. - Lorin Hochstein <lmh@xiphos.ca> and Peter Slacik <Peter.Slacik@tatramed.sk>; the last waiter will now reset the CV's wasBroadcast flag - Graham Dumpleton <Graham.Dumpleton@ra.pad.otc.telstra.com.au>.
1999-09-16*** empty log message ***rpj
1999-09-15Add rwlock tests to tests/Makefilerpj
1999-08-191999-08-19 Ross Johnson <rpj@ixobrychus.canberra.edu.au>rpj
* private.c (_pthread_threadStart): Return exit status from the application thread startup routine. - Milan Gardian <mg@tatramed.sk> 1999-08-18 Ross Johnson <rpj@ixobrychus.canberra.edu.au> * exit.c (pthread_exit): Put status into pthread_t->exitStatus - John Bossom <john.Bossom@cognos.com> * private.c (_pthread_threadStart): Set pthread->exitStatus on exit of try{} block. - John Bossom <john.Bossom@cognos.com> * 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). - John Bossom <john.Bossom@cognos.com> 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 (_pthread_threadStart): Likewise. (_pthread_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. (_pthread_threadStart): Fix prototype. * private.c (_pthread_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.
1999-08-12ChangeLog:rpj
1999-08-12 Ross Johnson <rpj@ixobrychus.canberra.edu.au> * private.c (_pthread_threadStart): ei[] only declared if _MSC_VER. tests/ChangeLog: Wed Aug 12 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> * Makefile (LIBS): Add -L.
1999-08-12Merged patches to main trunk.rpj
1999-05-29./ChangeLogrpj
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. ./tests/ChangeLog Sat May 29 23:29:04 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> * runall.bat (condvar5): Add new test. * runall.bat (condvar6): Add new test. * Makefile (condvar5) : Add new test. * Makefile (condvar6) : Add new test. * condvar5.c: New test for pthread_cond_broadcast(). * condvar6.c: New test for pthread_cond_broadcast().
1999-04-06Wed Apr 7 14:09:52 1999 Ross Johnson <rpj@swan.canberra.edu.au>snap-1999-04-07rpj
* errno.c (_REENTRANT || _MT): Invert #if condition. * pthread.h (_errno): Conditionally include prototype.
1999-04-06Wed Apr 7 09:37:00 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>rpj
* *.c (comments): Remove individual attributions - these are documented sufficiently elsewhere. * implement.h (pthread.h): Remove extraneous include.
1999-03-14Mon Mar 15 00:20:13 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>snap-1999-03-15rpj
* 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. tests/ChangeLog Mon Mar 15 00:17:55 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> * mutex1.c: only test mutex init and destroy; add assertions. * count1.c: raise number of spawned threads to 60 (appears to be the limit under Win98). Sun Mar 14 21:31:02 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> * test.h (assert): add assertion trace option. Use: "#define ASSERT_TRACE 1" to turn it on, "#define ASSERT_TRACE 0" to turn it off (default). * condvar3.c (main): add more assertions. * condvar4.c (main): add more assertions. * condvar1.c (main): add more assertions.
1999-03-08Resolve merge conflicts; minor comment changes.rpj
1999-03-07Mon Mar 8 11:18:59 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>rpj
* 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 (_pthread_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 (_pthread_cond_test_init_lock): Initialise and destroy. * implement.h (_pthread_cond_test_init_lock): Add extern. * global.c (_pthread_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. tests/ChangeLog Sun Mar 7 10:41:52 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> * Makefile (condvar3, condvar4): Add tests. * condvar4.c (General): Reduce to simple test case; prerequisite is condvar3.c; add description. * condvar3.c (General): Reduce to simple test case; prerequisite is condvar2.c; add description. * condvar2.c (General): Reduce to simple test case; prerequisite is condvar1.c; add description. * condvar1.c (General): Reduce to simple test case; add description. * Template.c (Comments): Add generic test detail.
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