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2005-04-25''rpj
2002-02-23 * pthread_cond_destroy.c: Expand the time changerpj
critical section to solve deadlock problem. * pthread.c: Add all remaining C modules. * pthread.h: Use dllexport/dllimport attributes on functions to avoid using pthread.def. * sched.h: Likewise. * semaphore.h: Likewise. * GNUmakefile: Add new targets for single translation unit build to maximise inlining potential; generate pthread.def automatically. * Makefile: Likewise, but no longer uses pthread.def.
2002-02-11Splitting files. See ChangeLog file for details.rpj
2002-02-08Copyright notice updates; module splitting; POSIX versionrpj
conditional compilation; refinements; bug fixes. See the ChangeLog.
2001-07-18Add new C modules to Nmakefile.rpj
2001-07-18 * rwlock.c (pthread_rwlock_wrlock): Is allowed to berpj
a cancelation point; re-enable deferred cancelability around the CV call.
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.