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2003-09-02Added cancelation of/from non-POSIX threads; minor fixes; minor changes.snap-2003-09-03rpj
2003-08-19Updated Copyright notice (date and contact address).rpj
2002-02-08Copyright notice updates; module splitting; POSIX versionrpj
conditional compilation; refinements; bug fixes. See the ChangeLog.
2001-12-18Include an interim complete Copyright notice in each source file;rpj
Remove unused autoconf files; Add the file COPYING, which describes the pthread-win32 license relative to the FSF LGPL.
2001-10-25 * GNUmakefile (libwsock32): Add to linker flags forrpj
WSAGetLastError() and WSASetLastError(). * Makefile (wsock32.lib): Likewise. * create.c: Minor mostly inert changes. * implement.h (PTW32_MAX): Move into here and renamed from sched.h. (PTW32_MIN): Likewise. * GNUmakefile (TEST_ICE): Define if testing internal implementation of InterlockedCompareExchange. * Makefile (TEST_ICE): Likewise. * private.c (TEST_ICE): Likewise.
2001-07-012001-06-25 Ross Johnson <rpj@setup1.ise.canberra.edu.au>rpj
* create.c (pthread_create): Add priority inheritance attributes. * mutex.c (pthread_mutex_lock): Remove some overhead for PTHREAD_MUTEX_NORMAL mutex types. Specifically, avoid calling pthread_self() and pthread_equal() to check/set the mutex owner. Introduce a new pseudo owner for this type. Test results suggest increases in speed of up to 90% for non-blocking locks. This is the default type of mutex used internally by other synchronising objects, ie. condition variables and read-write locks. The test rwlock7.c shows about a 30-35% speed increase over snapshot 2001-06-06. The price of this is that the application developer must ensure correct behaviour, or explicitly set the mutex to a safer type such as PTHREAD_MUTEX_ERRORCHECK. For example, PTHREAD_MUTEX_NORMAL (or PTHREAD_MUTEX_DEFAULT) type mutexes will not return an error if a thread which is not the owner calls pthread_mutex_unlock. The call will succeed in unlocking the mutex if it is currently locked, but a subsequent unlock by the true owner will then fail with EPERM. This is however consistent with some other implementations. (pthread_mutex_unlock): Likewise. (pthread_mutex_trylock): Likewise. (pthread_mutex_destroy): Likewise. * attr.c (pthread_attr_init): PTHREAD_EXPLICIT_SCHED is the default inheritance attribute; THREAD_PRIORITY_NORMAL is the default priority for new threads. * sched.c (pthread_attr_setschedpolicy): Added routine. (pthread_attr_getschedpolicy): Added routine. (pthread_attr_setinheritsched): Added routine. (pthread_attr_getinheritsched): Added routine. * pthread.h (sched_rr_set_interval): Added as a macro; returns -1 with errno set to ENOSYS. 2001-06-23 Ross Johnson <rpj@setup1.ise.canberra.edu.au> *sched.c (pthread_attr_setschedparam): Add priority range check. (sched_setscheduler): New function; checks for a valid pid and policy; checks for permission to set information in the target process; expects pid to be a Win32 process ID, not a process handle; the only scheduler policy allowed is SCHED_OTHER. (sched_getscheduler): Likewise, but checks for permission to query. * pthread.h (SCHED_*): Moved to sched.h as defined in the POSIX standard. * sched.h (SCHED_*): Moved from pthread.h. (pid_t): Defined if necessary. (sched_setscheduler): Defined. (sched_getscheduler): Defined. * pthread.def (sched_setscheduler): Exported. (sched_getscheduler): Likewise. 2001-06-23 Ross Johnson <rpj@setup1.ise.canberra.edu.au> Contributed by - Ralf Brese <Ralf.Brese@pdb4.siemens.de> * create.c (pthread_create): Set thread priority from thread attributes.
2001-06-19 * Made organisational-only changes to UWIN additions.rpj
* dll.c (dllMain): Moved UWIN process attach code to pthread_win32_process_attach_np(); moved instance of pthread_count to global.c. * global.c (pthread_count): Moved from dll.c. * nonportable.c (pthread_win32_process_attach_np): Moved _UWIN code to here from dll.c. * implement.h (pthread_count): Define extern int. * create.c (pthread_count): Remove extern int. * private.c (pthread_count): Likewise. * exit.c (pthread_count): Likewise. Contributed by - David Korn <dgk@research.att.com> * dll.c: Added changes necessary to work with UWIN. * create.c: Likewise. * pthread.h: Likewise. * misc.c: Likewise. * exit.c: Likewise. * private.c: Likewise. * implement.h: Likewise. There is some room at the start of struct pthread_t_ to implement the signal semantics in UWIN's posix.dll although this is not yet complete. * Nmakefile: Compatible with UWIN's Nmake utility. * Nmakefile.tests: Likewise - for running the tests.
2001-05-312001-05-30 Ross Johnson <rpj@setup1.ise.canberra.edu.au>rpj
* pthread.h (rand_r): Fake using _seed argument to quell compiler warning (compiler should optimise this away later). * GNUmakefile (OPT): Leave symbolic information out of the library and increase optimisation level - for smaller faster prebuilt dlls. 2001-05-29 Ross Johnson <rpj@setup1.ise.canberra.edu.au> Contributed by - Milan Gardian <Milan.Gardian@LEIBINGER.com> * Makefile: fix typo. * pthreads.h: Fix problems with stdcall/cdecl conventions, in particular remove the need for PT_STDCALL everywhere; remove warning supression. * (errno): Fix the longstanding "inconsistent dll linkage" problem with errno; now also works with /MD debugging libs - warnings emerged when compiling pthreads library with /MD (or /MDd) compiler switch, instead of /MT (or /MTd) (i.e. when compiling pthreads using Multithreaded DLL CRT instead of Multithreaded statically linked CRT). * create.c (pthread_create): Likewise; fix typo. * private.c (ptw32_threadStart): Eliminate use of terminate() which doesn't throw exceptions. * Remove unnecessary #includes from a number of modules - [I had to #include malloc.h in implement.h for gcc - rpj]. 2001-05-29 Ross Johnson <rpj@setup1.ise.canberra.edu.au> Contributed by - Thomas Pfaff <tpfaff@gmx.net> * pthread.h (PTHREAD_MUTEX_DEFAULT): New; equivalent to PTHREAD_MUTEX_DEFAULT_NP. * (PTHREAD_MUTEX_NORMAL): Similarly. * (PTHREAD_MUTEX_ERRORCHECK): Similarly. * (PTHREAD_MUTEX_RECURSIVE): Similarly. * (pthread_mutex_setdefaultkind_np): New; Linux compatibility stub for pthread_mutexattr_settype. * (pthread_mutexattr_getkind_np): New; Linux compatibility stub for pthread_mutexattr_gettype. * mutex.c (pthread_mutexattr_settype): New; allow the following types of mutex: PTHREAD_MUTEX_DEFAULT_NP PTHREAD_MUTEX_NORMAL_NP PTHREAD_MUTEX_ERRORCHECK_NP PTHREAD_MUTEX_RECURSIVE_NP * Note that PTHREAD_MUTEX_DEFAULT is equivalent to PTHREAD_MUTEX_NORMAL - ie. mutexes should no longer be recursive by default, and a thread will deadlock if it tries to relock a mutex it already owns. This is inline with other pthreads implementations. * (pthread_mutex_lock): Process the lock request according to the mutex type. * (pthread_mutex_init): Eliminate use of Win32 mutexes as the basis of POSIX mutexes - instead, a combination of one critical section and one semaphore are used in conjunction with Win32 Interlocked* routines. * (pthread_mutex_destroy): Likewise. * (pthread_mutex_lock): Likewise. * (pthread_mutex_trylock): Likewise. * (pthread_mutex_unlock): Likewise. * Use longjmp/setjmp to implement cancelation when building the library using a C compiler which doesn't support exceptions, e.g. gcc -x c (note that gcc -x c++ uses exceptions). * Also fixed some of the same typos and eliminated PT_STDCALL as Milan Gardian's patches above. 2001-02-07 Ross Johnson <rpj@special.ise.canberra.edu.au> Contributed by - Alexander Terekhov <TEREKHOV@de.ibm.com> * rwlock.c: Revamped. * implement.h (pthread_rwlock_t_): Redefined. This implementation does not have reader/writer starvation problem. Rwlock attempts to behave more like a normal mutex with races and scheduling policy determining who is more important; It also supports recursive locking, has less synchronization overhead (no broadcasts at all, readers are not blocked on any condition variable) and seem to be faster than the current implementation [W98 appears to be approximately 15 percent faster at least - on top of speed increase from Thomas Pfaff's changes to mutex.c - rpj].
2000-08-172000-08-17 Ross Johnson <rpj@special.ise.canberra.edu.au>rpj
* All applicable: Change _pthread_ prefix to ptw32_ prefix to remove leading underscores from private library identifiers (single and double leading underscores are reserved in the ANSI C standard for compiler implementations).
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.
2000-07-252000-07-25 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.
2000-07-252000-07-25 Ross Johnson <rpj@setup1.ise.canberra.edu.au>rpj
* dll.c (dllMain): Remove 2000-07-21 change - problem appears to be in pthread_create(). 2000-07-21 Ross Johnson <rpj@setup1.ise.canberra.edu.au> * create.c (pthread_create): Set threadH to 0 (zero) everywhere. Some assignments were using NULL. Maybe it should be NULL everywhere - need to check. (I know they are nearly always the same thing - but not by definition.) * dll.c: Include resource leakage work-around. This is a partial FIXME which doesn't stop all leakage. The real problem needs to be found and fixed. - "David Baggett" <dmb@itasoftware.com> * misc.c (pthread_self): Try to catch NULL thread handles at the point where they might be generated, even though they should always be valid at this point. * tsd.c (pthread_setspecific): return an error value if pthread_self() returns NULL. * sync.c (pthread_join): return an error value if pthread_self() returns NULL. * signal.c (pthread_sigmask): return an error value if pthread_self() returns NULL.
2000-01-04Main changes (see ChangeLog diff for details and attributions):-rpj
- asynchronous cancellation added - attempt to hide internal exceptions from applications - kernel32 load/free problem fixed - new tests - changes only to comments in some tests
1999-10-30./ChangeLog:rpj
1999-10-30 Ross Johnson <rpj@ixobrychus.canberra.edu.au> * create.c (pthread_create): Explicitly initialise thread state to default values. * cancel.c (pthread_setcancelstate): Check for NULL 'oldstate' for compatibility with Solaris pthreads; (pthread_setcanceltype): ditto: - Erik Hensema <erik.hensema@group2000.nl> 1999-10-23 Ross Johnson <rpj@ixobrychus.canberra.edu.au> * pthread.h (ctime_r): Fix incorrect argument "_tm" - Erik Hensema <erik.hensema@group2000.nl> tests/ChangeLog: 1999-10-30 Ross Johnson <rpj@ixobrychus.canberra.edu.au> * cancel1.c: New. Test pthread_setcancelstate and pthread_setcanceltype functions. * eyal1.c (waste_time): Change calculation to avoid FP exception on Aplhas - Rich Peters <rpeters@micro-magic.com>
1999-08-191999-08-19 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.
1999-04-03./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.
1999-03-16Tue Mar 16 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>rpj
* all: Add GNU LGPL and Copyright and Warranty.
1999-02-18Sat Feb 18 16:2s1703:30 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>rpj
* Makefile.in: Use libpthread32.a as the name of the DLL export library instead of pthread.lib. * condvar.c (pthread_cond_init): cv could have been used unitialised; initialise. * create.c (pthread_create): parms could have been used unitialised; initialise. Add "Makefile" for people who don't want to (or can't) run ./configure.
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.
1999-01-03Merge 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.
1998-10-14Wed 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.
1998-10-031998-10-03 Ben Elliston <bje@cygnus.com>bje
* create.c (_pthread_start_call): Add STDCALL prefix.
1998-09-121998-09-12 Ben Elliston <bje@cygnus.com>bje
* {most}.c: Include <errno.h> to get POSIX error values. * signal.c (pthread_sigmask): Only provide if HAVE_SIGSET_T is defined. * config.h: #undef features, don't #define them. This will be generated by autoconf very soon.
1998-08-06Removing compiler warnings.rpj
Thu Aug 6 15:19:22 1998 Ross Johnson <rpj@swan.canberra.edu.au> * create.c (pthread_create): Typecast (HANDLE) NULL. Typecast (unsigned (*)(void *)) start_routine.
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.
1998-07-30Thu 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.
1998-07-29Wed Jul 29 11:39:03 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>rpj
* cleanup.c (_pthread_handler_push): Same as below. * create.c (pthread_create): Same as below. * private.c (_pthread_new_thread): Rename "new" to "new_thread". Since when has a C programmer been required to know C++?
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.
1998-07-28Tue Jul 28 14:04:29 1998 Ross Johnson <rpj@swan.canberra.edu.au>rpj
* create.c (_pthread_start_call): Insert missing ")". Add "us" arg to _pthread_exit() call. (pthread_create): Modify to use new thread allocation scheme.
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.
1998-07-26Sun Jul 26 13:06:12 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>rpj
* exit.c (_pthread_exit): New function. Called from pthread_exit() and _pthread_start_call() to exit the thread. It allows an extra argument which is the return code passed to _endthreadex(). * create.c (_pthread_start_call): Change pthread_exit() call to _pthread_exit() call.
1998-07-26Sun Jul 26 13:06:12 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>rpj
* exit.c (_pthread_vacuum): Add thread entry deletion code moved from _pthread_start_call(). See next item. (pthread_exit): Remove longjmp(). Add mutex lock around thread table manipulation code. This routine now calls _enthreadex(). * create.c (_pthread_start_call): Remove setjmp() call and move cleanup code out. Call pthread_exit(NULL) to terminate the thread.
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.
1998-07-24Fix a minor problem with the last commit.rpj
1998-07-24Fri Jul 24 23:09:33 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>rpj
* create.c (pthread_create): Change . to -> in sigmask memcpy() args.
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.
1998-07-24Fri Jul 24 16:33:17 1998 Ross Johnson <rpj@swan.canberra.edu.au>rpj
* sync.c (pthread_detach): Use equality test, not assignment. * create.c (_pthread_start_call): Add call to Win32 CloseHandle() if thread is detached.
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
* create.c (pthread_create): Ensure values of new attribute members are copied to the thread attribute object.
1998-07-23Fri Jul 24 00:21:21 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>rpj
* create.c (pthread_create): Arg to _pthread_new_thread_entry() changed. See next entry. Move mutex locks out. Changes made yesterday and today allow us to start the new thread running rather than temporarily suspended. * private.c (_pthread_new_thread_entry): _pthread_thread_table was changed back to a table of thread structures rather than pointers. As such we're trading storage for increaded speed. This routine was modified to work with the new table. Mutex lock put in around global data accesses. (_pthread_find_thread_entry): Ditto (_pthread_delete_thread_entry): Ditto
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.
1998-07-21Wed 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.
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