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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.
2000-08-062000-08-06 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.
2000-01-04Main 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
1999-11-05 * pthread.h (winsock.h): Include unconditionally.rpj
(ETIMEDOUT): Change fallback value to that defined by winsock.h.
1999-11-041999-11-05 Ross Johnson <rpj@ixobrychus.canberra.edu.au>rpj
* 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. - Tristan Savatier <tristan@mpegtv.com>
1999-10-211999-10-21 Ross Johnson <rpj@ixobrychus.canberra.edu.au>rpj
* 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 - Aurelio Medina <aureliom@crt.com>
1999-09-15Sat Sep 10 12:56:13 1999 Ross Johnson <rpj@swan.canberra.edu.au>rpj
The following code for POSIX read/write locks was contributed by Aurelio Medina. * 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 (_pthread_processInitialize): initialise _pthread_rwlock_test_init_lock critical section. * global.c (_pthread_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. tests/ChangeLog Sep 15 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> * rwlock1.c: New test. * rwlock2.c: New test. * rwlock3.c: New test. * rwlock4.c: New test.
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.
1999-08-12Merged patches to main trunk.rpj
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.
1999-04-03./ChangeLogrpj
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 (_pthread_sem_*): Rename to sem_*; except for _pthread_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 (_pthread_sem_*): Remove prototypes now defined in semaphore.h. * pthread.h (sempahore.h): Include. * semaphore.h: New file for POSIX 1b semaphores. * pthread.h (_pthread_sem_t): Change to sem_t. * semaphore.c (_pthread_sem_*): Change to sem_*; these functions will be exported from the library; set errno on error. - John Bossom <jebossom@cognos.com> (_pthread_sem_timedwait): Moved to private.c. * private.c (_pthread_sem_timedwait): Moved from semaphore.c; set errno on error. * errno.c (_errno): New file. New function. - John Bossom * pthread.h (pthread_t_): Add per-thread errno element. tests/ChangeLog Sun Apr 4 12:04:28 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> * tsd1.c (mythread): Change Sleep(0) to sched_yield(). (sched.h): Include. * condvar3.c (mythread): Remove redundant Sleep(). * runtest.bat: Re-organised to make more informative.
1999-03-18==> ChangeLog <==rpj
Fri Mar 19 09:12:59 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> * private.c (_pthread_threadStart): status returns PTHREAD_CANCELED. * pthread.h (PTHREAD_CANCELED): defined. ==> tests/ChangeLog <== Fri Mar 19 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> * *.bat: redirect unwanted output to nul: * runall.bat: new. * cancel1.c: new. Not part of suite yet.
1999-03-16Tue Mar 16 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>rpj
* all: Add GNU LGPL and Copyright and Warranty.
1999-03-11Thu Mar 11 09:01:48 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>rpj
* 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. tests/ChangeLog Fri Mar 12 08:34:15 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> * eyal1.c (main): Fix trylock loop; was not waiting for thread to lock the "started" mutex.
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.
1999-02-21Sun Feb 21 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>rpj
* pthread.h (PTHREAD_MUTEX_INITIALIZER): missing braces around cs element initialiser. Bring some tests up-to-date.
1999-02-201999-02-21 Ben Elliston <bje@cygnus.com>bje
* pthread.h (pthread_exit): The return type of this function is void, not int. * exit.c (pthread_exit): Do not return 0.
1999-02-17Sat Feb 18 16:2s1703:30 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>rpj
* pthread.h (struct pthread_once_t_): Remove redefinition.
1999-02-12Sat Feb 13 03:03:30 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>rpj
* 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.
1999-02-08Fri Feb 5 13:42:30 1999 Ross Johnson <rpj@swan.canberra.edu.au>rpj
* semaphore.c: Comment format changes. Wed Feb 3 13:04:44 1999 Ross Johnson <rpj@swan.canberra.edu.au> * cleanup.c: Rename _pthread_*_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().
1999-02-02Mods to compile under Mingw32 egcs.rpj
Tue Feb 2 18:07:43 1999 Ross Johnson <rpj@swan.canberra.edu.au> * implement.h: Add #include <pthread.h>. Change sem_t to _pthread_sem_t. Various patches by 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>. (_PTHREAD_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 _pthread_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 (_pthread_sem_timedwait): Move from private.c. Rename sem_* to _pthread_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 ename all functions to prepend '_pthread_'. They are now private to the pthreads-win32 implementation. * private.c: Change #warning. Move _pthread_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.
1999-01-23Fixing problems building with GNU compilers:rpj
Sun Jan 24 01:34:52 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> * semaphore.c (sem_wait): Remove second arg to pthreadCancelableWait() call. 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 (_pthread_callUserDestroyRoutines): Redo conditional compilation. * misc.c (CancelableWait): C++ version uses 'throw'. * cancel.c (pthread_testcancel): Ditto. * implement.h (class pthread_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.
1999-01-22Sat Jan 23 17:36:40 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>snapshot-1999-01-23rpj
* pthread.h (PTHREAD_MUTEX_AUTO_CS_NP): New. (PTHREAD_MUTEX_FORCE_CS_NP): New.
1999-01-20Wed Jan 20 09:31:28 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>rpj
* 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. * private.c (_pthread_sem_timedwait): 'abstime' arg really is absolute time. Calculate relative time to wait from current time before passing timeout to new routine pthreadCancelableTimedWait(). - Scott Lightner <scott@curriculum.com> 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 (_pthread_mutex_test_init_lock): Add. * implement.h (_pthread_mutex_test_init_lock.): Add extern. * private.c (_pthread_processInitialize): Init critical section for global lock used by _mutex_check_need_init(). (_pthread_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.
1999-01-18Tue Jan 19 18:27:42 1999 Ross Johnson <rpj@swan.canberra.edu.au>rpj
* 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. * private.c (_pthread_sem_timedwait): 'abstime' arg really is absolute time. Calculate relative time to wait from current time before passing timeout to new routine pthreadCancelableTimedWait(). - Scott Lightner <scott@curriculum.com>
1999-01-14Fri Jan 15 15:41:28 1999 Ross Johnson <rpj@swan.canberra.edu.au>rpj
* 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 _pthread_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 (_pthread_sem_timedwait): New internal function prototype. * misc.c (pthreadCancelableWait): Added new 'abstime' argument to allow shorter than INFINITE wait. * semaphore.c (_pthread_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().
1999-01-12Wed Jan 13 09:34:52 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>rpj
* build.bat: Delete old binaries before compiling/linking. Tue Jan 12 09:58:38 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> * dll.c: The Microsoft compiler pragmas probably are more appropriately protected by _MSC_VER than by _WIN32. - Tor Lillqvist <tml@iki.fi>. * condvar.c (pthread_cond_timedwait): Fix function description comments. * 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. - Tor Lillqvist <tml@iki.fi>. * pthread.def: pthread_mutex_destroy was missing from the def file - Tor Lillqvist <tml@iki.fi>. * 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. - Tor Lillqvist <tml@iki.fi>. * 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 (_pthread_push_cleanup): Provide conditional compile of cleanup->prev.
1999-01-03Merge John Bossom's code into the main trunk. See ChangeLog for details.snapshot-1999-01-04-1305rpj
This will be tagged as snapshot-1999-01-04-1305
1998-10-14Thu Oct 15 11:53:21 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>rpj
* global.c (_pthread_tsd_key_table): Fix declaration. * implement.h(_pthread_TSD_keys_TlsIndex): Add missing extern. (_pthread_tsd_mutex): Ditto. * create.c (_pthread_start_call): Fix "keys" array declaration. Add comment. * tsd.c (pthread_setspecific): Fix type declaration and cast. (pthread_getspecific): Ditto. * cleanup.c (_pthread_destructor_run_all): Declare missing loop counter.
1998-10-041998-10-05 Ben Elliston <bje@cygnus.com>bje
* misc.c (pthread_once): Use the POSIX mutex primitives, not Win32. Remove irrelevant FIXME comment. * pthread.h (PTHREAD_ONCE_INIT): Define. * tests/once1.c: New file; test for pthread_once(). Passes.
1998-10-041998-10-05 Ben Elliston <bje@cygnus.com>bje
* 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. * 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.
1998-10-03Use #if, not #ifdef.bje
1998-10-031998-10-03 Ben Elliston <bje@cygnus.com>bje
* attr.c (pthread_attr_init): Only zero out the `sigmask' member if we have the sigset_t type. * pthread.h (pthread_sigmask): Only provide if we have the sigset_t type.
1998-10-031998-10-03 Ben Elliston <bje@cygnus.com>bje
* pthread.h: No need to include <unistd.h>. It doesn't even exist on Win32! Again, an artifact of cross-compilation.
1998-10-031998-10-03 Ben Elliston <bje@cygnus.com>bje
* 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.
1998-08-101998-08-11 Ben Elliston <bje@cygnus.com>pre-compiled-auug99bje
* 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.
1998-08-03Tue Aug 4 00:09:30 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>rpj
* implement.h(_pthread_virgins): Add extern. (_pthread_virgin_next): Ditto. (_pthread_reuse): Ditto. (_pthread_reuse_top): Ditto. (_pthread_win32handle_map): Ditto. (_pthread_threads_mutex_table): Ditto. * global.c (_pthread_virgins): Changed from array to pointer. Storage allocation for the array moved into dll.c. (_pthread_reuse): Ditto. (_pthread_win32handle_map): Ditto. (_pthread_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 _pthread_handler_push() calls. Change "arg" arg to NULL in child push. * exit.c: Add windows.h and process.h includes. (_pthread_exit): Add local detachstate declaration. (_pthread_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. (_pthread_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 (_pthread_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 (_PTHREAD_HANDLER_POP_LIFO): Remove definition. (_PTHREAD_HANDLER_POP_FIFO): Ditto. (_PTHREAD_VALID): Add missing newline escape (\). (_pthread_handler_node): Make element "next" a pointer.
1998-08-02Sun Aug 2 19:03:42 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>rpj
* 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.
1998-07-30Fri Jul 31 00:05:45 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>rpj
* 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.
1998-07-27Mon Jul 27 17:46:37 1998 Ross Johnson <rpj@swan.canberra.edu.au>rpj
* create.c (pthread_create): Start of rewrite. Not completed yet. * private.c (_pthread_new_thread_entry): Start of rewrite. Not complete. * implement.h (_pthread_threads_thread): Rename, remove thread member, add win32handle and ptstatus members. (_pthread_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.
1998-07-251998-07-26 Ben Elliston <bje@cygnus.com>bje
* mutex.c (pthread_mutexattr_setpshared): Not supported; remove. (pthread_mutexattr_getpshared): Likewise. * pthread.h (pthread_mutexattr_setpshared): Remove prototype. (pthread_mutexattr_getpshared): Likewise.
1998-07-25Sun Jul 26 00:09:59 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>rpj
* 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.
1998-07-25Sun Jul 26 00:09:59 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>rpj
* private.c (_pthread_delete_thread_entry): Mutex locks removed. Mutexes must be applied at the caller level. (_pthread_new_thread_entry): Ditto. (_pthread_new_thread_entry): Init cancelstate, canceltype, and cancel_pending to default values. (_pthread_new_thread_entry): Rename "this" to "new". (_pthread_find_thread_entry): Rename "this" to "entry". (_pthread_delete_thread_entry): Rename "thread_entry" to "entry". * create.c (_pthread_start_call): Mutexes changed to _pthread_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 (_pthread_threads_thread): Move cancelstate and canceltype members out of pthread_attr_t into here.
1998-07-25Sat Jul 25 00:00:13 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>rpj
* create.c (_pthread_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 (_PTHREAD_THREADS_TABLE_INDEX): Add. * exit.c (_pthread_vacuum): Fix incorrect args to _pthread_handler_pop_all() calls. Make thread entry removal conditional. * sync.c (pthread_join): Add multiple join and async detach handling. * implement.h (_PTHREAD_THREADS_TABLE_INDEX): Add. * global.c (_pthread_threads_mutex_table): Add. * implement.h (_pthread_once_flag): Remove. (_pthread_once_lock): Ditto. (_pthread_threads_mutex_table): Add. * global.c (_pthread_once_flag): Remove. (_pthread_once_lock): Ditto. * sync.c (pthread_join): Fix tests involving new return value from _pthread_find_thread_entry(). (pthread_detach): Ditto. * private.c (_pthread_find_thread_entry): Failure return code changed from -1 to NULL.
1998-07-24Fri Jul 24 23:09:33 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>rpj
* pthread.h: (pthread_cancel): Add function prototype. (pthread_testcancel): Ditto.
1998-07-241998-07-24 Ben Elliston <bje@cygnus.com>bje
* pthread.h (pthread_condattr_t): Rename dummy structure member. (pthread_mutexattr_t): Likewise.
1998-07-24Fri Jul 24 21:13:55 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>rpj
* cancel.c (pthread_cancel): Implement. (pthread_testcancel): Implement. * exit.c (pthread_exit): Add comment explaining the longjmp(). * implement.h (_pthread_threads_thread_t): New member cancelthread. (_PTHREAD_YES): Define. (_PTHREAD_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.
1998-07-24Minor #include and #ifdef fixes.bje
1998-07-241998-07-24 Ben Elliston <bje@cygnus.com>bje
* 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.
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