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1999-01-22Sat Jan 23 17:36:40 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>rpj
* README: Updated.
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>
1999-01-16Sun Jan 17 12:01:26 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>snapshot-1999-01-17rpj
* private.c (_pthread_sem_timedwait): Move from semaphore.c. * semaphore.c : Remove redundant #includes. (_pthread_sem_timedwait): Move to private.c. (sem_wait): Add missing abstime arg to pthreadCancelableWait() call. 1999-01-17 Ross Johnson <rpj@ise.canberra.edu.au> * runtest: New script to build and run a test in the tests directory.
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().
1999-01-13Thu Jan 14 14:27:13 1999 Ross Johnson <rpj@swan.canberra.edu.au>rpj
* cleanup.c: Correct _cplusplus to __cplusplus wherever used. * Makefile.in: Add CC=g++ and add -fhandle-exceptions to CFLAGS. The derived Makefile will compile all units of the package as C++ so that those which include try/catch exception handling should work properly. The package should compile ok if CC=gcc, however, exception handling will not be included and thus thread cancellation, for example, will not work. * cleanup.c (_pthread_pop_cleanup): Add #warning to compile this file as C++ if using a cygwin32 environment. Perhaps the whole package should be compiled using g++ under cygwin. * private.c (_pthread_threadStart): Change #error directive into #warning and bracket for __CYGWIN__ and derivative compilers.
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.
1999-01-101999-01-11 Ben Elliston <bje@cygnus.com>bje
* condvar.c (pthread_cond_init): Invert logic when testing the return value from calloc().
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>.
1999-01-04Parts of this package are going to have to be C++ in the GNU world because werpj
now use exception handling to implement thread cancellation. The MSC compiler appears to know about __try/__except blocks, but gcc (ie. the GNU ANSI C compiler) doesn't know about the equivalent C++ try/catch blocks. This should not be a problem since gcc and g++ are nearly always available together. Some file names may need to change in the CVS repository however. Tue Jan 5 16:33:04 1999 Ross Johnson <rpj@swan.canberra.edu.au> * cleanup.c (_pthread_pop_cleanup): Add C++ version of __try/__except block. Move trailing "}" out of #ifdef _WIN32 block left there by (my) mistake. * private.c: Remove #include <errno.h> which is included by pthread.h.
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
1998-12-101998-12-11 Ben Elliston <bje@toilet.to.cygnus.com>bje
* README: Update info about subscribing to the mailing list.
1998-12-09New file.rpj
Q 1 How do I get pthreads-win32 to link under Cygwin32 or Mingw32?
1998-12-06Mon Dec 7 09:44:40 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>final-pre-bossomrpj
* dll.c (PthreadsEntryPoint): Cast return value of GetProcAddress to resolve compile warning from MSVC.
1998-12-06Sun Dec 6 21:54:35 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>rpj
* buildlib.bat: Fix args to CL when building the .DLL * cleanup.c (_pthread_destructor_run_all): Fix TSD key management. This is a tidy-up before TSD and Thread management is completely replaced by John Bossom's much more elegant code. * tsd.c (pthread_key_create): Fix TSD key management. * global.c (_pthread_key_virgin_next): Initialise. * build.bat: New DOS script to compile and link a pthreads app using Microsoft's CL compiler linker. * buildlib.bat: New DOS script to compile all the object files and create pthread.lib and pthread.dll using Microsoft's CL compiler linker.
1998-12-06Sun Dec 6 21:54:35 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>rpj
* build.bat: New DOS script to compile and link a pthreads app using Microsoft's CL compiler linker. * buildlib.bat: New DOS script to compile all the object files and create pthread.lib and pthread.dll using Microsoft's CL compiler linker.
1998-12-06Thu Dec 3 13:32:00 1998 Ross Johnson <rpj@ise.canberra.edu.au>rpj
* README: Correct cygwin32 compatibility statement.
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.
1998-10-291998-10-30 Ben Elliston <bje@cygnus.com>bje
* condvar.c (cond_wait): Fix semantic error. Test for equality instead of making an assignment.
1998-10-29Fri Oct 30 15:15:50 1998 Ross Johnson <rpj@swan.canberra.edu.au>rpj
* 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".
1998-10-22Thu Oct 22 21:44:44 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>rpj
* tsd.c: Add description of pthread_key_delete() from the standard as a comment.
1998-10-15Thu Oct 15 17:42:37 1998 Ross Johnson <rpj@swan.canberra.edu.au>rpj
* tsd1.c (mythread): Fix some casts and add some diagnostics. Fix inverted conditional.
1998-10-14Thu Oct 15 14:05:01 1998 Ross Johnson <rpj@swan.canberra.edu.au>rpj
* private.c (_pthread_new_thread): Remove init of destructorstack. No longer an element of pthread_t.
1998-10-14Thu Oct 15 14:05:01 1998 Ross Johnson <rpj@swan.canberra.edu.au>rpj
* tsd.c (pthread_setspecific): Fix type declaration and cast. (pthread_getspecific): Ditto. (pthread_getspecific): Change error return value to NULL if key is not in use. Yet again.
1998-10-14Thu Oct 15 14:05:01 1998 Ross Johnson <rpj@swan.canberra.edu.au>rpj
* tsd.c (pthread_setspecific): Fix type declaration and cast. (pthread_getspecific): Ditto.
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.
1998-10-14Wed Oct 14 21:09:24 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>rpj
* private.c (_pthread_new_thread): Increment _pthread_threads_count. (_pthread_delete_thread): Decrement _pthread_threads_count. Remove some comments. * exit.c (_pthread_exit): : Fix two pthread_mutex_lock() calls that should have been pthread_mutex_unlock() calls. (_pthread_vacuum): Remove call to _pthread_destructor_pop_all(). * create.c (pthread_create): Fix two pthread_mutex_lock() calls that should have been pthread_mutex_unlock() calls. * global.c (_pthread_tsd_mutex): Add mutex for TSD operations. * tsd.c (pthread_key_create): Add critical section. (pthread_setspecific): Ditto. (pthread_getspecific): Ditto. (pthread_key_delete): Ditto. * sync.c (pthread_join): Fix two pthread_mutex_lock() calls that should have been pthread_mutex_unlock() calls.
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.
1998-10-11Mon Oct 12 02:12:29 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>rpj
* tsd1.c: New. Test TSD using 1 key and 2 threads.
1998-10-06Update.bje
1998-10-061998-10-06 Ben Elliston <bje@cygnus.com>bje
* condvar.c (cond_wait): Use POSIX, not Win32 mutex calls. (pthread_cond_broadcast): Likewise. (pthread_cond_signal): Likewise.
1998-10-06Move comment to a more obvious position.bje
1998-10-041998-10-05 Ben Elliston <bje@cygnus.com>bje
* pthread.def: Update. Some functions aren't available yet, others are macros in <pthread.h>. * tests/join.c: Remove; useless.
1998-10-04Mon Oct 5 14:25:08 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>rpj
* pthread.def: New file for building the DLL.
1998-10-041998-10-05 Ben Elliston <bje@cygnus.com>bje
* tests/self.c: Remove; rename to self1.c. * tests/self1.c: This is the old self.c. * tests/self2.c: New file. Test pthread_self() with a single thread. Passes. * tests/self3.c: New file. Test pthread_self() with a couple of threads to ensure their thread IDs differ. Passes.
1998-10-041998-10-05 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
* misc.c (pthread_equal): Correct inverted logic bug. * tests/create1.c: New file; test pthread_create(). Passes. * tests/equal.c: Poor test; remove. * tests/equal1.c New file; test pthread_equal(). Passes.
1998-10-04Update.bje
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.
1998-10-041998-10-04 Ben Elliston <bje@cygnus.com>bje
* tests/mutex2.c: Test pthread_mutex_trylock(). Passes. * tests/mutex1.c (main): Eliminate warning.
1998-10-041998-10-04 Ben Elliston <bje@cygnus.com>bje
* tests/mutex1.c: New basic test for mutex functions (it passes).
1998-10-041998-10-04 Ben Elliston <bje@cygnus.com>bje
* configure.in: Test for __stdcall, not _stdcall. Typo. * configure: Regenerate.
1998-10-041998-10-04 Ben Elliston <bje@cygnus.com>bje
* attr.c (pthread_attr_setstackaddr): Remove FIXME comment. Win32 does know about ENOSYS after all. (pthread_attr_setstackaddr): Likewise.
1998-10-031998-10-03 Ben Elliston <bje@cygnus.com>bje
* create.c (_pthread_start_call): Add STDCALL prefix.
1998-10-03Use #if, not #ifdef.bje
1998-10-03Correct oversight in AC_DEFINE logic.bje
1998-10-031998-10-03 Ben Elliston <bje@cygnus.com>bje
* config.h.in: Regenerate.
1998-10-031998-10-03 Ben Elliston <bje@cygnus.com>bje
* configure.in: Test for the `_stdcall' keyword. Define `STDCALL' to `_stdcall' if we have it, null otherwise. * configure: Regenerate. * acconfig.h (STDCALL): New define.
1998-10-031998-10-03 Ben Elliston <bje@cygnus.com>bje
* mutex.c (pthread_mutex_init): Correct function signature.
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.
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