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1999-09-16Thu Sep 16 1999 Ross Johnson <rpj@swan.canberra.edu.au>rpj
* 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.
1999-09-15Sat 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 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.
1999-04-03./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.
1999-03-23Wed Mar 24 11:32:07 1999 Ross Johnson <rpj@swan.canberra.edu.au>rpj
* 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 (_pthread_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 (_pthread_threadStart): status returns PTHREAD_CANCELED. * pthread.h (PTHREAD_CANCELED): defined.
1999-03-16Tue Mar 16 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>rpj
* all: Add GNU LGPL and Copyright and Warranty.
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.
1999-02-09Thu Feb 4 10:07:28 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>snapshot-1999-02-10rpj
* global.c: Remove Pthread_exception instantiation. * cancel.c (pthread_testcancel): Change C++ exception throw. * implement.h: Remove extern declaration.
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.
1999-01-20Wed 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.
1999-01-14Fri 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().
1999-01-08Sat Jan 9 14:32:08 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>rpj
* 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>.
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
1998-12-06As well as patches from Anders, this commit includes some older changesrpj
that hadn't been checked in. Those are to finish off the original TSD management scheme which will now start to be replaced by John Bossom's implementation. Anders' description of his changes:- Fixes the problem with `TryEnterCriticalSection' on w95 systems. Instead of directly calling `TryEnterCriticalSection' it tries to get a pointer at DLL startup and only calls the function if it exists. See ChangeLog for things changed. 1998-12-05 Anders Norlander <anorland@hem2.passagen.se> * implement.h (_pthread_try_enter_critical_section): New extern * dll.c (_pthread_try_enter_critical_section): New pointer to TryEnterCriticalSection if it exists; otherwise NULL. * dll.c (PthreadsEntryPoint): Initialize _pthread_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 _pthread_try_enter_critical_section is valid pointer to a function. Call _pthread_try_enter_critical_section instead of TryEnterCriticalSection to avoid errors on Win95. Sun Nov 15 21:24:06 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au> * cleanup.c (_pthread_destructor_run_all): Declare missing void * arg. Fixup CVS merge conflicts. Fri Oct 30 15:15:50 1998 Ross Johnson <rpj@swan.canberra.edu.au> * cleanup.c (_pthread_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 (_PTHREAD_TSD_KEY_REUSE): Add enum. * private.c (_pthread_delete_thread): Add call to _pthread_destructor_run_all() to clean up the threads keys. * cleanup.c (_pthread_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.
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.
1998-10-14Mon Oct 12 00:00:44 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>rpj
* implement.h (_pthread_tsd_key_table): New. * create.c (_pthread_start_call): Initialise per-thread TSD keys to NULL. * misc.c (pthread_once): Correct typo in comment. * implement.h (_pthread_destructor_push): Remove. (_pthread_destructor_pop): Remove. (_pthread_destructor_run_all): Rename from _pthread_destructor_pop_all. (_PTHREAD_TSD_KEY_DELETED): Add enum. (_PTHREAD_TSD_KEY_INUSE): Add enum. * cleanup.c (_pthread_destructor_push): Remove. (_pthread_destructor_pop): Remove. (_pthread_destructor_run_all): Totally revamped TSD. * dll.c (_pthread_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 (_pthread_tsd_key_table): Add new global. * implement.h (_pthread_tsd_key_t and struct _pthread_tsd_key): Add. (struct _pthread): Remove destructorstack. * cleanup.c (_pthread_destructor_run_all): Rename from _pthread_destructor_pop_all. The key destructor stack was made global rather than per-thread. No longer removes destructor nodes from the stack. Comments updated.
1998-08-06*** empty log message ***rpj
1998-08-06Thu Aug 6 15:19:22 1998 Ross Johnson <rpj@swan.canberra.edu.au>rpj
* cleanup.c (_pthread_destructor_pop_all): Add (int) cast to pthread_getspecific() arg. (_pthread_destructor_pop): Add (void *) cast to "if" conditional. (_pthread_destructor_push): Add (void *) cast to _pthread_handler_push() "key" arg. (malloc.h): Add include.
1998-08-06Thu Aug 6 15:19:22 1998 Ross Johnson <rpj@swan.canberra.edu.au>rpj
* implement.h (_pthread_destructor_pop): Add prototype. * tsd.c (implement.h): Add include.
1998-08-04Tue Aug 4 16:57:58 1998 Ross Johnson <rpj@swan.canberra.edu.au>rpj
* private.c (_pthread_delete_thread): Fix typo. Add missing ';'. * global.c (_pthread_virgins): Change types from pointer to array pointer. (_pthread_reuse): Ditto. (_pthread_win32handle_map): Ditto. (_pthread_threads_mutex_table): Ditto. * implement.h(_pthread_virgins): Change types from pointer to array pointer. (_pthread_reuse): Ditto. (_pthread_win32handle_map): Ditto. (_pthread_threads_mutex_table): Ditto. * private.c (_pthread_delete_thread): Fix "entry" should be "thread". * misc.c (pthread_self): Add extern for _pthread_threadID_TlsIndex. * global.c: Add comment. * misc.c (pthread_once): Fix member -> dereferences. Change _pthread_once_flag to once_control->flag in "if" test.
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.
1998-07-31Fri Jul 31 00:05:45 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>rpj
* implement.h (_pthread_handler_pop_all): Add prototype. (_pthread_destructor_pop_all): Ditto. * cleanup.c (_pthread_destructor_push): Implement. This is just a call to _pthread_handler_push(). (_pthread_destructor_pop_all): Implement. This is significantly different to _pthread_handler_pop_all().
1998-07-30Fri Jul 31 00:05:45 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>rpj
* implement.h (_PTHREAD_THIS): Remove - no longer required. (_PTHREAD_STACK): Use pthread_self() instead of _PTHREAD_THIS.
1998-07-30Thu Jul 30 23:12:45 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>rpj
* implement.h: Remove _pthread_find_entry() prototype. * private.c: Extend comments. Remove _pthread_find_entry() - no longer needed. * create.c (_pthread_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 _pthread_threadID_TlsIndex. Add ()s around _PTHREAD_VALID expression. * misc.c (pthread_self): Re-implement using Win32 TLS to store the threads own ID.
1998-07-28Tue Jul 28 14:04:29 1998 Ross Johnson <rpj@swan.canberra.edu.au>rpj
* implement.h: Add _PTHREAD_VALID macro. * sync.c (pthread_join): Modify to use the new thread type and _pthread_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 (_pthread_find_thread): Fix return type and arg. * implement.h: Remove _PTHREAD_YES and _PTHREAD_NO. (_pthread_new_thread): Add prototype. (_pthread_find_thread): Ditto. (_pthread_delete_thread): Ditto. (_pthread_new_thread_entry): Remove prototype. (_pthread_find_thread_entry): Ditto. (_pthread_delete_thread_entry): Ditto. ( _PTHREAD_NEW, _PTHREAD_INUSE, _PTHREAD_EXITED, _PTHREAD_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 _pthread_threads_thread_t * to pthread_t and init with pthread_this(). (pthread_setcanceltype): Ditto.
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.
1998-07-26Mon Jul 27 00:20:37 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>rpj
* private.c (_pthread_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 (_pthread_exit): Fix incorrect check for detachedstate. * implement.h (_pthread_call_t): Remove env member.
1998-07-26Sun Jul 26 13:06:12 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>rpj
* implement.h (_pthread_new_thread_entry): Fix prototype. (_pthread_find_thread_entry): Ditto. (_pthread_delete_thread_entry): Ditto. (_pthread_exit): Add prototype.
1998-07-25Sun Jul 26 00:09:59 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>rpj
* sync.c: Rename all instances of _pthread_count_mutex to _pthread_table_mutex. * implement.h: Rename _pthread_count_mutex to _pthread_table_mutex. * global.c: Rename _pthread_count_mutex to _pthread_table_mutex. * create.c (pthread_create): Add critical sections. (_pthread_start_call): Rename _pthread_count_mutex to _pthread_table_mutex.
1998-07-25Sun Jul 26 00:09:59 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>rpj
* 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.
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 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.
1998-07-24Fri Jul 24 16:33:17 1998 Ross Johnson <rpj@swan.canberra.edu.au>rpj
* 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: (_pthread_handler_push): Fix return type and stack arg type in prototype. (_pthread_handler_pop): Fix stack arg type in prototype. (_pthread_handler_pop_all): Fix stack arg type in prototype. * cleanup.c (_pthread_handler_push): Change return type to int and return ENOMEM if malloc() fails.
1998-07-24 * sync.c (pthread_join): Save valueptr arg in joinvalueptr forrpj
pthread_exit() to use. * private.c (_pthread_new_thread_entry): Initialise joinvalueptr to NULL. * create.c (_pthread_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 (_pthread_threads_thread): New member void ** joinvalueptr. (_pthread_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 _pthread_start_call().
1998-07-23Fri Jul 24 03:00:25 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>rpj
* 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.
1998-07-231998-07-24 Ben Elliston <bje@cygnus.com>bje
* implement.h (_PTHREAD_CANCEL_DEFAULTS): Remove. Bit fields proved to be too cumbersome. Set the defaults in attr.c using the public PTHREAD_CANCEL_* constants.
1998-07-23 * global.c: New. Global data objects declared here. These moved fromrpj
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 (_pthread_handler_push): Simplify args. Restructure. (_pthread_handler_pop): Simplify args. Restructure. (_pthread_handler_pop_all): Simplify args. Restructure.
1998-07-22Wed Jul 22 00:16:22 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>rpj
* attr.c, implement.h, pthread.h, ChangeLog: Resolve CVS merge conflicts. * private.c (_pthread_find_thread_entry): Changes to return type to support leaner _pthread_threads_table[] which now only stores _pthread_thread_thread_t *. (_pthread_new_thread_entry): Internal changes. (_pthread_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 _pthread_threads_thread_t. * cleanup.c (_pthread_handler_push, _pthread_handler_pop, _pthread_handler_pop_all): Renamed cleanup push and pop routines and made generic to handle destructors and atfork handlers as well. * create.c (_pthread_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 (_pthread_vacuum): New function contains code from pthread_exit() that we need in the new _pthread_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 (_pthread_find_thread_entry): Implement. (_pthread_delete_thread_entry): Implement. (_pthread_new_thread_entry): Implement. These functions manipulate the implementations internal thread table and are part of general code cleanup and modularisation. They replace _pthread_getthreadindex() which was removed. * exit.c (pthread_exit): Changed to use the new code above. * pthread.h: Add cancelability constants. Update comments.
1998-07-221998-07-22 Ben Elliston <bje@cygnus.com>bje
* implement.h (_pthread_attr_t): Moved to a public definition in pthread.h. There was little gain in hiding these details.
1998-07-22i1998-07-22 Ben Elliston <bje@cygnus.com>bje
* 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. * pthread.h (pthread_attr_t): Moved here from implement.h. * implement.h (_pthread_mutexattr_t): Moved to a public definition in pthread.h. There was little gain in hiding these details. (_pthread_condattr_t): Likewise.
1998-07-21Wed Jul 22 00:16:22 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>rpj
* cleanup.c (_pthread_cleanup_push): Implement. (_pthread_cleanup_pop): Implement. (_pthread_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 (_pthread_getthreadindex): "*thread" should have been "thread". Detect empty slot fail condition.
1998-07-19Mon Jul 20 02:31:05 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>rpj
* private.c (_pthread_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 _pthread_cleanup_stack_t, _pthread_cleanup_node_t and _PTHREAD_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 _pthread_threads_count. Create _pthread_threads_thread_t struct to keep thread specific data. * create.c: Rename pthreads_thread_count to _pthread_threads_count. (pthread_create): Handle errors from CreateThread().
1998-07-171998-07-18 Ben Elliston <bje@cygnus.com>bje
* implement.h (_pthread_condattr_t): Remove shared attribute.
1998-07-171998-07-17 Ben Elliston <bje@cygnus.com>bje
* implement.h (_pthread_mutexattr_t): Remove shared attribute.
1998-07-12See the ChangeLog.rpj
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