cpython-lru_cache-weakref: Python/thread

annotate Python/thread_pthread.h @ 80731:0adfbafe8a99 2.7

Closes #16588: Silence unused-but-set warnings in Python/thread_pthread.h

author	Jesus Cea <jcea@jcea.es>
date	Wed, 05 Dec 2012 14:41:11 +0100
parents	ecf0ef85c72a
children	a5ef439f3c9e

rev	line source
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	1
3663 07164d30429d Got rid of florida hack and made it work with Solaris 2.5 pthreads. Guido van Rossum <guido@python.org> parents: 2097 diff changeset	2 /* Posix threads interface */
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	3
3663 07164d30429d Got rid of florida hack and made it work with Solaris 2.5 pthreads. Guido van Rossum <guido@python.org> parents: 2097 diff changeset	4 #include <stdlib.h>
9290 2340f615da8f BSDI specific patches, inspired by Nigel Head and otto@mail.olympus.net. Guido van Rossum <guido@python.org> parents: 9079 diff changeset	5 #include <string.h>
25545 3731be28e1a3 Patch #618347: Work around Solaris 2.6 pthread.h bug. Will backport to 2.2. Martin v. Löwis <martin@v.loewis.de> parents: 22341 diff changeset	6 #if defined(__APPLE__) \|\| defined(HAVE_PTHREAD_DESTRUCTOR)
21724 884e57bf3ada Workaround for what is probably a problem in Apple's gcc: <pthread.h> fails Jack Jansen <jack.jansen@cwi.nl> parents: 20922 diff changeset	7 #define destructor xxdestructor
884e57bf3ada Workaround for what is probably a problem in Apple's gcc: <pthread.h> fails Jack Jansen <jack.jansen@cwi.nl> parents: 20922 diff changeset	8 #endif
3663 07164d30429d Got rid of florida hack and made it work with Solaris 2.5 pthreads. Guido van Rossum <guido@python.org> parents: 2097 diff changeset	9 #include <pthread.h>
25545 3731be28e1a3 Patch #618347: Work around Solaris 2.6 pthread.h bug. Will backport to 2.2. Martin v. Löwis <martin@v.loewis.de> parents: 22341 diff changeset	10 #if defined(__APPLE__) \|\| defined(HAVE_PTHREAD_DESTRUCTOR)
21724 884e57bf3ada Workaround for what is probably a problem in Apple's gcc: <pthread.h> fails Jack Jansen <jack.jansen@cwi.nl> parents: 20922 diff changeset	11 #undef destructor
884e57bf3ada Workaround for what is probably a problem in Apple's gcc: <pthread.h> fails Jack Jansen <jack.jansen@cwi.nl> parents: 20922 diff changeset	12 #endif
20398 c9a212329da6 Add SF patch #468347 -- mask signals for non-main pthreads, by Jason Lowe: Guido van Rossum <guido@python.org> parents: 19826 diff changeset	13 #include <signal.h>
22341 2548e2f323fa Document that _POSIX_SEMAPHORES is predefined. Martin v. Löwis <martin@v.loewis.de> parents: 22339 diff changeset	14
38794 f7d23bca599f Patch #1454481: Make thread stack size runtime tunable. Andrew MacIntyre <andymac@bullseye.apana.org.au> parents: 38592 diff changeset	15 /* The POSIX spec requires that use of pthread_attr_setstacksize
f7d23bca599f Patch #1454481: Make thread stack size runtime tunable. Andrew MacIntyre <andymac@bullseye.apana.org.au> parents: 38592 diff changeset	16 be conditional on _POSIX_THREAD_ATTR_STACKSIZE being defined. */
f7d23bca599f Patch #1454481: Make thread stack size runtime tunable. Andrew MacIntyre <andymac@bullseye.apana.org.au> parents: 38592 diff changeset	17 #ifdef _POSIX_THREAD_ATTR_STACKSIZE
f7d23bca599f Patch #1454481: Make thread stack size runtime tunable. Andrew MacIntyre <andymac@bullseye.apana.org.au> parents: 38592 diff changeset	18 #ifndef THREAD_STACK_SIZE
61465 e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	19 #define THREAD_STACK_SIZE 0 /* use default stack size */
38794 f7d23bca599f Patch #1454481: Make thread stack size runtime tunable. Andrew MacIntyre <andymac@bullseye.apana.org.au> parents: 38592 diff changeset	20 #endif
70447 ecf0ef85c72a Issue #9670: Increase the default stack size for secondary threads on Ned Deily <nad@acm.org> parents: 69228 diff changeset	21
ecf0ef85c72a Issue #9670: Increase the default stack size for secondary threads on Ned Deily <nad@acm.org> parents: 69228 diff changeset	22 #if (defined(__APPLE__) \|\| defined(__FreeBSD__)) && defined(THREAD_STACK_SIZE) && THREAD_STACK_SIZE == 0
ecf0ef85c72a Issue #9670: Increase the default stack size for secondary threads on Ned Deily <nad@acm.org> parents: 69228 diff changeset	23 /* The default stack size for new threads on OSX is small enough that
ecf0ef85c72a Issue #9670: Increase the default stack size for secondary threads on Ned Deily <nad@acm.org> parents: 69228 diff changeset	24 * we'll get hard crashes instead of 'maximum recursion depth exceeded'
ecf0ef85c72a Issue #9670: Increase the default stack size for secondary threads on Ned Deily <nad@acm.org> parents: 69228 diff changeset	25 * exceptions.
ecf0ef85c72a Issue #9670: Increase the default stack size for secondary threads on Ned Deily <nad@acm.org> parents: 69228 diff changeset	26 *
ecf0ef85c72a Issue #9670: Increase the default stack size for secondary threads on Ned Deily <nad@acm.org> parents: 69228 diff changeset	27 * The default stack size below is the minimal stack size where a
ecf0ef85c72a Issue #9670: Increase the default stack size for secondary threads on Ned Deily <nad@acm.org> parents: 69228 diff changeset	28 * simple recursive function doesn't cause a hard crash.
ecf0ef85c72a Issue #9670: Increase the default stack size for secondary threads on Ned Deily <nad@acm.org> parents: 69228 diff changeset	29 */
ecf0ef85c72a Issue #9670: Increase the default stack size for secondary threads on Ned Deily <nad@acm.org> parents: 69228 diff changeset	30 #undef THREAD_STACK_SIZE
ecf0ef85c72a Issue #9670: Increase the default stack size for secondary threads on Ned Deily <nad@acm.org> parents: 69228 diff changeset	31 #define THREAD_STACK_SIZE 0x400000
ecf0ef85c72a Issue #9670: Increase the default stack size for secondary threads on Ned Deily <nad@acm.org> parents: 69228 diff changeset	32 #endif
38794 f7d23bca599f Patch #1454481: Make thread stack size runtime tunable. Andrew MacIntyre <andymac@bullseye.apana.org.au> parents: 38592 diff changeset	33 /* for safety, ensure a viable minimum stacksize */
61465 e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	34 #define THREAD_STACK_MIN 0x8000 /* 32kB */
38794 f7d23bca599f Patch #1454481: Make thread stack size runtime tunable. Andrew MacIntyre <andymac@bullseye.apana.org.au> parents: 38592 diff changeset	35 #else /* !_POSIX_THREAD_ATTR_STACKSIZE */
f7d23bca599f Patch #1454481: Make thread stack size runtime tunable. Andrew MacIntyre <andymac@bullseye.apana.org.au> parents: 38592 diff changeset	36 #ifdef THREAD_STACK_SIZE
f7d23bca599f Patch #1454481: Make thread stack size runtime tunable. Andrew MacIntyre <andymac@bullseye.apana.org.au> parents: 38592 diff changeset	37 #error "THREAD_STACK_SIZE defined but _POSIX_THREAD_ATTR_STACKSIZE undefined"
f7d23bca599f Patch #1454481: Make thread stack size runtime tunable. Andrew MacIntyre <andymac@bullseye.apana.org.au> parents: 38592 diff changeset	38 #endif
f7d23bca599f Patch #1454481: Make thread stack size runtime tunable. Andrew MacIntyre <andymac@bullseye.apana.org.au> parents: 38592 diff changeset	39 #endif
f7d23bca599f Patch #1454481: Make thread stack size runtime tunable. Andrew MacIntyre <andymac@bullseye.apana.org.au> parents: 38592 diff changeset	40
22341 2548e2f323fa Document that _POSIX_SEMAPHORES is predefined. Martin v. Löwis <martin@v.loewis.de> parents: 22339 diff changeset	41 /* The POSIX spec says that implementations supporting the sem_*
2548e2f323fa Document that _POSIX_SEMAPHORES is predefined. Martin v. Löwis <martin@v.loewis.de> parents: 22339 diff changeset	42 family of functions must indicate this by defining
61465 e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	43 _POSIX_SEMAPHORES. */
22339 6c3e32357d91 Patch #525532: Add support for POSIX semaphores. Martin v. Löwis <martin@v.loewis.de> parents: 21766 diff changeset	44 #ifdef _POSIX_SEMAPHORES
61465 e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	45 /* On FreeBSD 4.x, _POSIX_SEMAPHORES is defined empty, so
34824 a50ffe65911b Add 0 to _POSIX_SEMAPHORES. Martin v. Löwis <martin@v.loewis.de> parents: 34762 diff changeset	46 we need to add 0 to make it work there as well. */
a50ffe65911b Add 0 to _POSIX_SEMAPHORES. Martin v. Löwis <martin@v.loewis.de> parents: 34762 diff changeset	47 #if (_POSIX_SEMAPHORES+0) == -1
34762 fcb507414c41 Patch #1163249 - Correctly handle _POSIX_SEMAPHORES == -1 to mean no Anthony Baxter <anthonybaxter@gmail.com> parents: 32526 diff changeset	48 #define HAVE_BROKEN_POSIX_SEMAPHORES
fcb507414c41 Patch #1163249 - Correctly handle _POSIX_SEMAPHORES == -1 to mean no Anthony Baxter <anthonybaxter@gmail.com> parents: 32526 diff changeset	49 #else
22339 6c3e32357d91 Patch #525532: Add support for POSIX semaphores. Martin v. Löwis <martin@v.loewis.de> parents: 21766 diff changeset	50 #include <semaphore.h>
6c3e32357d91 Patch #525532: Add support for POSIX semaphores. Martin v. Löwis <martin@v.loewis.de> parents: 21766 diff changeset	51 #include <errno.h>
6c3e32357d91 Patch #525532: Add support for POSIX semaphores. Martin v. Löwis <martin@v.loewis.de> parents: 21766 diff changeset	52 #endif
34762 fcb507414c41 Patch #1163249 - Correctly handle _POSIX_SEMAPHORES == -1 to mean no Anthony Baxter <anthonybaxter@gmail.com> parents: 32526 diff changeset	53 #endif
3663 07164d30429d Got rid of florida hack and made it work with Solaris 2.5 pthreads. Guido van Rossum <guido@python.org> parents: 2097 diff changeset	54
37168 4f97b6a229ce Patch #1396919: Reenable the system scope threads on FreeBSD 5.4 Hye-Shik Chang <hyeshik@gmail.com> parents: 35607 diff changeset	55 /* Before FreeBSD 5.4, system scope threads was very limited resource
4f97b6a229ce Patch #1396919: Reenable the system scope threads on FreeBSD 5.4 Hye-Shik Chang <hyeshik@gmail.com> parents: 35607 diff changeset	56 in default setting. So the process scope is preferred to get
4f97b6a229ce Patch #1396919: Reenable the system scope threads on FreeBSD 5.4 Hye-Shik Chang <hyeshik@gmail.com> parents: 35607 diff changeset	57 enough number of threads to work. */
4f97b6a229ce Patch #1396919: Reenable the system scope threads on FreeBSD 5.4 Hye-Shik Chang <hyeshik@gmail.com> parents: 35607 diff changeset	58 #ifdef __FreeBSD__
4f97b6a229ce Patch #1396919: Reenable the system scope threads on FreeBSD 5.4 Hye-Shik Chang <hyeshik@gmail.com> parents: 35607 diff changeset	59 #include <osreldate.h>
4f97b6a229ce Patch #1396919: Reenable the system scope threads on FreeBSD 5.4 Hye-Shik Chang <hyeshik@gmail.com> parents: 35607 diff changeset	60 #if __FreeBSD_version >= 500000 && __FreeBSD_version < 504101
4f97b6a229ce Patch #1396919: Reenable the system scope threads on FreeBSD 5.4 Hye-Shik Chang <hyeshik@gmail.com> parents: 35607 diff changeset	61 #undef PTHREAD_SYSTEM_SCHED_SUPPORTED
4f97b6a229ce Patch #1396919: Reenable the system scope threads on FreeBSD 5.4 Hye-Shik Chang <hyeshik@gmail.com> parents: 35607 diff changeset	62 #endif
4f97b6a229ce Patch #1396919: Reenable the system scope threads on FreeBSD 5.4 Hye-Shik Chang <hyeshik@gmail.com> parents: 35607 diff changeset	63 #endif
4f97b6a229ce Patch #1396919: Reenable the system scope threads on FreeBSD 5.4 Hye-Shik Chang <hyeshik@gmail.com> parents: 35607 diff changeset	64
26598 56dbd9079a13 Patch #650415: Avoid redefinition of macros. Martin v. Löwis <martin@v.loewis.de> parents: 26499 diff changeset	65 #if !defined(pthread_attr_default)
5493 ef93d51dab36 Support for various versions of the pthread draft. Guido van Rossum <guido@python.org> parents: 5395 diff changeset	66 # define pthread_attr_default ((pthread_attr_t *)NULL)
26598 56dbd9079a13 Patch #650415: Avoid redefinition of macros. Martin v. Löwis <martin@v.loewis.de> parents: 26499 diff changeset	67 #endif
56dbd9079a13 Patch #650415: Avoid redefinition of macros. Martin v. Löwis <martin@v.loewis.de> parents: 26499 diff changeset	68 #if !defined(pthread_mutexattr_default)
5493 ef93d51dab36 Support for various versions of the pthread draft. Guido van Rossum <guido@python.org> parents: 5395 diff changeset	69 # define pthread_mutexattr_default ((pthread_mutexattr_t *)NULL)
26598 56dbd9079a13 Patch #650415: Avoid redefinition of macros. Martin v. Löwis <martin@v.loewis.de> parents: 26499 diff changeset	70 #endif
56dbd9079a13 Patch #650415: Avoid redefinition of macros. Martin v. Löwis <martin@v.loewis.de> parents: 26499 diff changeset	71 #if !defined(pthread_condattr_default)
5493 ef93d51dab36 Support for various versions of the pthread draft. Guido van Rossum <guido@python.org> parents: 5395 diff changeset	72 # define pthread_condattr_default ((pthread_condattr_t *)NULL)
3965 9c05ff6fb0a4 Changes necessary for AIX. Guido van Rossum <guido@python.org> parents: 3663 diff changeset	73 #endif
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	74
5493 ef93d51dab36 Support for various versions of the pthread draft. Guido van Rossum <guido@python.org> parents: 5395 diff changeset	75
22339 6c3e32357d91 Patch #525532: Add support for POSIX semaphores. Martin v. Löwis <martin@v.loewis.de> parents: 21766 diff changeset	76 /* Whether or not to use semaphores directly rather than emulating them with
6c3e32357d91 Patch #525532: Add support for POSIX semaphores. Martin v. Löwis <martin@v.loewis.de> parents: 21766 diff changeset	77 * mutexes and condition variables:
6c3e32357d91 Patch #525532: Add support for POSIX semaphores. Martin v. Löwis <martin@v.loewis.de> parents: 21766 diff changeset	78 */
27320 1562c1e10b49 Don't use Posix semaphores on Solaris 8. Fixes #662787. Martin v. Löwis <martin@v.loewis.de> parents: 26598 diff changeset	79 #if defined(_POSIX_SEMAPHORES) && !defined(HAVE_BROKEN_POSIX_SEMAPHORES)
22339 6c3e32357d91 Patch #525532: Add support for POSIX semaphores. Martin v. Löwis <martin@v.loewis.de> parents: 21766 diff changeset	80 # define USE_SEMAPHORES
6c3e32357d91 Patch #525532: Add support for POSIX semaphores. Martin v. Löwis <martin@v.loewis.de> parents: 21766 diff changeset	81 #else
6c3e32357d91 Patch #525532: Add support for POSIX semaphores. Martin v. Löwis <martin@v.loewis.de> parents: 21766 diff changeset	82 # undef USE_SEMAPHORES
6c3e32357d91 Patch #525532: Add support for POSIX semaphores. Martin v. Löwis <martin@v.loewis.de> parents: 21766 diff changeset	83 #endif
6c3e32357d91 Patch #525532: Add support for POSIX semaphores. Martin v. Löwis <martin@v.loewis.de> parents: 21766 diff changeset	84
6c3e32357d91 Patch #525532: Add support for POSIX semaphores. Martin v. Löwis <martin@v.loewis.de> parents: 21766 diff changeset	85
20398 c9a212329da6 Add SF patch #468347 -- mask signals for non-main pthreads, by Jason Lowe: Guido van Rossum <guido@python.org> parents: 19826 diff changeset	86 /* On platforms that don't use standard POSIX threads pthread_sigmask()
c9a212329da6 Add SF patch #468347 -- mask signals for non-main pthreads, by Jason Lowe: Guido van Rossum <guido@python.org> parents: 19826 diff changeset	87 * isn't present. DEC threads uses sigprocmask() instead as do most
c9a212329da6 Add SF patch #468347 -- mask signals for non-main pthreads, by Jason Lowe: Guido van Rossum <guido@python.org> parents: 19826 diff changeset	88 * other UNIX International compliant systems that don't have the full
c9a212329da6 Add SF patch #468347 -- mask signals for non-main pthreads, by Jason Lowe: Guido van Rossum <guido@python.org> parents: 19826 diff changeset	89 * pthread implementation.
c9a212329da6 Add SF patch #468347 -- mask signals for non-main pthreads, by Jason Lowe: Guido van Rossum <guido@python.org> parents: 19826 diff changeset	90 */
29972 a408ac5527c3 Patch 775605: Cygwin pthread_sigmask() workaround patch Jason Tishler <jason@tishler.net> parents: 28687 diff changeset	91 #if defined(HAVE_PTHREAD_SIGMASK) && !defined(HAVE_BROKEN_PTHREAD_SIGMASK)
20398 c9a212329da6 Add SF patch #468347 -- mask signals for non-main pthreads, by Jason Lowe: Guido van Rossum <guido@python.org> parents: 19826 diff changeset	92 # define SET_THREAD_SIGMASK pthread_sigmask
c9a212329da6 Add SF patch #468347 -- mask signals for non-main pthreads, by Jason Lowe: Guido van Rossum <guido@python.org> parents: 19826 diff changeset	93 #else
c9a212329da6 Add SF patch #468347 -- mask signals for non-main pthreads, by Jason Lowe: Guido van Rossum <guido@python.org> parents: 19826 diff changeset	94 # define SET_THREAD_SIGMASK sigprocmask
c9a212329da6 Add SF patch #468347 -- mask signals for non-main pthreads, by Jason Lowe: Guido van Rossum <guido@python.org> parents: 19826 diff changeset	95 #endif
c9a212329da6 Add SF patch #468347 -- mask signals for non-main pthreads, by Jason Lowe: Guido van Rossum <guido@python.org> parents: 19826 diff changeset	96
c9a212329da6 Add SF patch #468347 -- mask signals for non-main pthreads, by Jason Lowe: Guido van Rossum <guido@python.org> parents: 19826 diff changeset	97
1629 4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	98 /* A pthread mutex isn't sufficient to model the Python lock type
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	99 * because, according to Draft 5 of the docs (P1003.4a/D5), both of the
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	100 * following are undefined:
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	101 * -> a thread tries to lock a mutex it already has locked
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	102 * -> a thread tries to unlock a mutex locked by a different thread
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	103 * pthread mutexes are designed for serializing threads over short pieces
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	104 * of code anyway, so wouldn't be an appropriate implementation of
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	105 * Python's locks regardless.
1629 4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	106 *
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	107 * The pthread_lock struct implements a Python lock as a "locked?" bit
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	108 * and a <condition, mutex> pair. In general, if the bit can be acquired
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	109 * instantly, it is, else the pair is used to block the thread until the
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	110 * bit is cleared. 9 May 1994 tim@ksr.com
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	111 */
1629 4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	112
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	113 typedef struct {
61465 e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	114 char locked; /* 0=unlocked, 1=locked */
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	115 /* a <cond, mutex> pair to handle an acquire of a locked lock */
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	116 pthread_cond_t lock_released;
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	117 pthread_mutex_t mut;
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	118 } pthread_lock;
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	119
9290 2340f615da8f BSDI specific patches, inspired by Nigel Head and otto@mail.olympus.net. Guido van Rossum <guido@python.org> parents: 9079 diff changeset	120 #define CHECK_STATUS(name) if (status != 0) { perror(name); error = 1; }
1629 4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	121
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	122 /*
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	123 * Initialization.
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	124 */
9290 2340f615da8f BSDI specific patches, inspired by Nigel Head and otto@mail.olympus.net. Guido van Rossum <guido@python.org> parents: 9079 diff changeset	125
2340f615da8f BSDI specific patches, inspired by Nigel Head and otto@mail.olympus.net. Guido van Rossum <guido@python.org> parents: 9079 diff changeset	126 #ifdef _HAVE_BSDI
13658 f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern' Thomas Wouters <thomas@python.org> parents: 13256 diff changeset	127 static
f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern' Thomas Wouters <thomas@python.org> parents: 13256 diff changeset	128 void _noop(void)
9290 2340f615da8f BSDI specific patches, inspired by Nigel Head and otto@mail.olympus.net. Guido van Rossum <guido@python.org> parents: 9079 diff changeset	129 {
2340f615da8f BSDI specific patches, inspired by Nigel Head and otto@mail.olympus.net. Guido van Rossum <guido@python.org> parents: 9079 diff changeset	130 }
2340f615da8f BSDI specific patches, inspired by Nigel Head and otto@mail.olympus.net. Guido van Rossum <guido@python.org> parents: 9079 diff changeset	131
13658 f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern' Thomas Wouters <thomas@python.org> parents: 13256 diff changeset	132 static void
f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern' Thomas Wouters <thomas@python.org> parents: 13256 diff changeset	133 PyThread__init_thread(void)
9290 2340f615da8f BSDI specific patches, inspired by Nigel Head and otto@mail.olympus.net. Guido van Rossum <guido@python.org> parents: 9079 diff changeset	134 {
61465 e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	135 /* DO AN INIT BY STARTING THE THREAD */
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	136 static int dummy = 0;
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	137 pthread_t thread1;
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	138 pthread_create(&thread1, NULL, (void *) _noop, &dummy);
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	139 pthread_join(thread1, NULL);
9290 2340f615da8f BSDI specific patches, inspired by Nigel Head and otto@mail.olympus.net. Guido van Rossum <guido@python.org> parents: 9079 diff changeset	140 }
2340f615da8f BSDI specific patches, inspired by Nigel Head and otto@mail.olympus.net. Guido van Rossum <guido@python.org> parents: 9079 diff changeset	141
2340f615da8f BSDI specific patches, inspired by Nigel Head and otto@mail.olympus.net. Guido van Rossum <guido@python.org> parents: 9079 diff changeset	142 #else /* !_HAVE_BSDI */
2340f615da8f BSDI specific patches, inspired by Nigel Head and otto@mail.olympus.net. Guido van Rossum <guido@python.org> parents: 9079 diff changeset	143
13658 f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern' Thomas Wouters <thomas@python.org> parents: 13256 diff changeset	144 static void
f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern' Thomas Wouters <thomas@python.org> parents: 13256 diff changeset	145 PyThread__init_thread(void)
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	146 {
9079 4d2cb212c8d1 Apparently on AIX when using gcc you need to call pthread_init() Guido van Rossum <guido@python.org> parents: 9070 diff changeset	147 #if defined(_AIX) && defined(__GNUC__)
61465 e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	148 pthread_init();
9079 4d2cb212c8d1 Apparently on AIX when using gcc you need to call pthread_init() Guido van Rossum <guido@python.org> parents: 9070 diff changeset	149 #endif
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	150 }
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	151
9290 2340f615da8f BSDI specific patches, inspired by Nigel Head and otto@mail.olympus.net. Guido van Rossum <guido@python.org> parents: 9079 diff changeset	152 #endif /* !_HAVE_BSDI */
2340f615da8f BSDI specific patches, inspired by Nigel Head and otto@mail.olympus.net. Guido van Rossum <guido@python.org> parents: 9079 diff changeset	153
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	154 /*
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	155 * Thread support.
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	156 */
1629 4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	157
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	158
20468 ebfd87e87884 Partial patch from SF #452266, by Jason Petrone. Guido van Rossum <guido@python.org> parents: 20431 diff changeset	159 long
13658 f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern' Thomas Wouters <thomas@python.org> parents: 13256 diff changeset	160 PyThread_start_new_thread(void (func)(void ), void *arg)
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	161 {
61465 e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	162 pthread_t th;
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	163 int status;
19826 8ef456949b76 Improve threading on Solaris, according to SF patch #460269, submitted Guido van Rossum <guido@python.org> parents: 19549 diff changeset	164 #if defined(THREAD_STACK_SIZE) \|\| defined(PTHREAD_SYSTEM_SCHED_SUPPORTED)
61465 e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	165 pthread_attr_t attrs;
19549 11a758c56027 GUSI on the Mac creates threads with a default stack size of 20KB, which is Jack Jansen <jack.jansen@cwi.nl> parents: 14375 diff changeset	166 #endif
38794 f7d23bca599f Patch #1454481: Make thread stack size runtime tunable. Andrew MacIntyre <andymac@bullseye.apana.org.au> parents: 38592 diff changeset	167 #if defined(THREAD_STACK_SIZE)
61465 e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	168 size_t tss;
38794 f7d23bca599f Patch #1454481: Make thread stack size runtime tunable. Andrew MacIntyre <andymac@bullseye.apana.org.au> parents: 38592 diff changeset	169 #endif
f7d23bca599f Patch #1454481: Make thread stack size runtime tunable. Andrew MacIntyre <andymac@bullseye.apana.org.au> parents: 38592 diff changeset	170
61465 e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	171 dprintf(("PyThread_start_new_thread called\n"));
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	172 if (!initialized)
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	173 PyThread_init_thread();
5493 ef93d51dab36 Support for various versions of the pthread draft. Guido van Rossum <guido@python.org> parents: 5395 diff changeset	174
19826 8ef456949b76 Improve threading on Solaris, according to SF patch #460269, submitted Guido van Rossum <guido@python.org> parents: 19549 diff changeset	175 #if defined(THREAD_STACK_SIZE) \|\| defined(PTHREAD_SYSTEM_SCHED_SUPPORTED)
61465 e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	176 if (pthread_attr_init(&attrs) != 0)
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	177 return -1;
19826 8ef456949b76 Improve threading on Solaris, according to SF patch #460269, submitted Guido van Rossum <guido@python.org> parents: 19549 diff changeset	178 #endif
38794 f7d23bca599f Patch #1454481: Make thread stack size runtime tunable. Andrew MacIntyre <andymac@bullseye.apana.org.au> parents: 38592 diff changeset	179 #if defined(THREAD_STACK_SIZE)
61465 e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	180 tss = (_pythread_stacksize != 0) ? _pythread_stacksize
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	181 : THREAD_STACK_SIZE;
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	182 if (tss != 0) {
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	183 if (pthread_attr_setstacksize(&attrs, tss) != 0) {
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	184 pthread_attr_destroy(&attrs);
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	185 return -1;
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	186 }
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	187 }
19549 11a758c56027 GUSI on the Mac creates threads with a default stack size of 20KB, which is Jack Jansen <jack.jansen@cwi.nl> parents: 14375 diff changeset	188 #endif
37168 4f97b6a229ce Patch #1396919: Reenable the system scope threads on FreeBSD 5.4 Hye-Shik Chang <hyeshik@gmail.com> parents: 35607 diff changeset	189 #if defined(PTHREAD_SYSTEM_SCHED_SUPPORTED)
61465 e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	190 pthread_attr_setscope(&attrs, PTHREAD_SCOPE_SYSTEM);
19826 8ef456949b76 Improve threading on Solaris, according to SF patch #460269, submitted Guido van Rossum <guido@python.org> parents: 19549 diff changeset	191 #endif
20398 c9a212329da6 Add SF patch #468347 -- mask signals for non-main pthreads, by Jason Lowe: Guido van Rossum <guido@python.org> parents: 19826 diff changeset	192
61465 e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	193 status = pthread_create(&th,
19826 8ef456949b76 Improve threading on Solaris, according to SF patch #460269, submitted Guido van Rossum <guido@python.org> parents: 19549 diff changeset	194 #if defined(THREAD_STACK_SIZE) \|\| defined(PTHREAD_SYSTEM_SCHED_SUPPORTED)
61465 e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	195 &attrs,
19549 11a758c56027 GUSI on the Mac creates threads with a default stack size of 20KB, which is Jack Jansen <jack.jansen@cwi.nl> parents: 14375 diff changeset	196 #else
61465 e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	197 (pthread_attr_t*)NULL,
19549 11a758c56027 GUSI on the Mac creates threads with a default stack size of 20KB, which is Jack Jansen <jack.jansen@cwi.nl> parents: 14375 diff changeset	198 #endif
61465 e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	199 (void* ()(void ))func,
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	200 (void *)arg
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	201 );
20398 c9a212329da6 Add SF patch #468347 -- mask signals for non-main pthreads, by Jason Lowe: Guido van Rossum <guido@python.org> parents: 19826 diff changeset	202
20922 7a991d012cd6 Fix memory leak. This is part of SF patch #478006. Fred Drake <fdrake@acm.org> parents: 20468 diff changeset	203 #if defined(THREAD_STACK_SIZE) \|\| defined(PTHREAD_SYSTEM_SCHED_SUPPORTED)
61465 e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	204 pthread_attr_destroy(&attrs);
19549 11a758c56027 GUSI on the Mac creates threads with a default stack size of 20KB, which is Jack Jansen <jack.jansen@cwi.nl> parents: 14375 diff changeset	205 #endif
61465 e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	206 if (status != 0)
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	207 return -1;
28687 40d287c3d906 Patch #716969: Detect thread creation failure. Will backport to 2.2. Martin v. Löwis <martin@v.loewis.de> parents: 28673 diff changeset	208
61465 e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	209 pthread_detach(th);
28687 40d287c3d906 Patch #716969: Detect thread creation failure. Will backport to 2.2. Martin v. Löwis <martin@v.loewis.de> parents: 28673 diff changeset	210
20468 ebfd87e87884 Partial patch from SF #452266, by Jason Petrone. Guido van Rossum <guido@python.org> parents: 20431 diff changeset	211 #if SIZEOF_PTHREAD_T <= SIZEOF_LONG
61465 e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	212 return (long) th;
20468 ebfd87e87884 Partial patch from SF #452266, by Jason Petrone. Guido van Rossum <guido@python.org> parents: 20431 diff changeset	213 #else
61465 e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	214 return (long) (long ) &th;
20468 ebfd87e87884 Partial patch from SF #452266, by Jason Petrone. Guido van Rossum <guido@python.org> parents: 20431 diff changeset	215 #endif
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	216 }
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	217
14144 31cda87e9ff4 This patch partly (some stuff went in already) ports Python to Monterey. Trent Mick <trentm@activestate.com> parents: 13658 diff changeset	218 /* XXX This implementation is considered (to quote Tim Peters) "inherently
31cda87e9ff4 This patch partly (some stuff went in already) ports Python to Monterey. Trent Mick <trentm@activestate.com> parents: 13658 diff changeset	219 hosed" because:
31611 0979fa062deb typo Skip Montanaro <skip@pobox.com> parents: 31470 diff changeset	220 - It does not guarantee the promise that a non-zero integer is returned.
14144 31cda87e9ff4 This patch partly (some stuff went in already) ports Python to Monterey. Trent Mick <trentm@activestate.com> parents: 13658 diff changeset	221 - The cast to long is inherently unsafe.
31cda87e9ff4 This patch partly (some stuff went in already) ports Python to Monterey. Trent Mick <trentm@activestate.com> parents: 13658 diff changeset	222 - It is not clear that the 'volatile' (for AIX?) and ugly casting in the
31cda87e9ff4 This patch partly (some stuff went in already) ports Python to Monterey. Trent Mick <trentm@activestate.com> parents: 13658 diff changeset	223 latter return statement (for Alpha OSF/1) are any longer necessary.
31cda87e9ff4 This patch partly (some stuff went in already) ports Python to Monterey. Trent Mick <trentm@activestate.com> parents: 13658 diff changeset	224 */
61465 e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	225 long
13658 f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern' Thomas Wouters <thomas@python.org> parents: 13256 diff changeset	226 PyThread_get_thread_ident(void)
1651 7e5f97bab1e6 ceval.c: dict of local mapping is now a tuple Guido van Rossum <guido@python.org> parents: 1629 diff changeset	227 {
61465 e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	228 volatile pthread_t threadid;
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	229 if (!initialized)
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	230 PyThread_init_thread();
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	231 /* Jump through some hoops for Alpha OSF/1 */
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	232 threadid = pthread_self();
14144 31cda87e9ff4 This patch partly (some stuff went in already) ports Python to Monterey. Trent Mick <trentm@activestate.com> parents: 13658 diff changeset	233 #if SIZEOF_PTHREAD_T <= SIZEOF_LONG
61465 e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	234 return (long) threadid;
14144 31cda87e9ff4 This patch partly (some stuff went in already) ports Python to Monterey. Trent Mick <trentm@activestate.com> parents: 13658 diff changeset	235 #else
61465 e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	236 return (long) (long ) &threadid;
14144 31cda87e9ff4 This patch partly (some stuff went in already) ports Python to Monterey. Trent Mick <trentm@activestate.com> parents: 13658 diff changeset	237 #endif
1651 7e5f97bab1e6 ceval.c: dict of local mapping is now a tuple Guido van Rossum <guido@python.org> parents: 1629 diff changeset	238 }
7e5f97bab1e6 ceval.c: dict of local mapping is now a tuple Guido van Rossum <guido@python.org> parents: 1629 diff changeset	239
61465 e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	240 void
13658 f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern' Thomas Wouters <thomas@python.org> parents: 13256 diff changeset	241 PyThread_exit_thread(void)
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	242 {
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	243 dprintf(("PyThread_exit_thread called\n"));
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	244 if (!initialized) {
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	245 exit(0);
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	246 }
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	247 }
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	248
22339 6c3e32357d91 Patch #525532: Add support for POSIX semaphores. Martin v. Löwis <martin@v.loewis.de> parents: 21766 diff changeset	249 #ifdef USE_SEMAPHORES
6c3e32357d91 Patch #525532: Add support for POSIX semaphores. Martin v. Löwis <martin@v.loewis.de> parents: 21766 diff changeset	250
6c3e32357d91 Patch #525532: Add support for POSIX semaphores. Martin v. Löwis <martin@v.loewis.de> parents: 21766 diff changeset	251 /*
6c3e32357d91 Patch #525532: Add support for POSIX semaphores. Martin v. Löwis <martin@v.loewis.de> parents: 21766 diff changeset	252 * Lock support.
6c3e32357d91 Patch #525532: Add support for POSIX semaphores. Martin v. Löwis <martin@v.loewis.de> parents: 21766 diff changeset	253 */
6c3e32357d91 Patch #525532: Add support for POSIX semaphores. Martin v. Löwis <martin@v.loewis.de> parents: 21766 diff changeset	254
61465 e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	255 PyThread_type_lock
22339 6c3e32357d91 Patch #525532: Add support for POSIX semaphores. Martin v. Löwis <martin@v.loewis.de> parents: 21766 diff changeset	256 PyThread_allocate_lock(void)
6c3e32357d91 Patch #525532: Add support for POSIX semaphores. Martin v. Löwis <martin@v.loewis.de> parents: 21766 diff changeset	257 {
61465 e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	258 sem_t *lock;
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	259 int status, error = 0;
22339 6c3e32357d91 Patch #525532: Add support for POSIX semaphores. Martin v. Löwis <martin@v.loewis.de> parents: 21766 diff changeset	260
61465 e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	261 dprintf(("PyThread_allocate_lock called\n"));
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	262 if (!initialized)
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	263 PyThread_init_thread();
22339 6c3e32357d91 Patch #525532: Add support for POSIX semaphores. Martin v. Löwis <martin@v.loewis.de> parents: 21766 diff changeset	264
61465 e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	265 lock = (sem_t *)malloc(sizeof(sem_t));
22339 6c3e32357d91 Patch #525532: Add support for POSIX semaphores. Martin v. Löwis <martin@v.loewis.de> parents: 21766 diff changeset	266
61465 e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	267 if (lock) {
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	268 status = sem_init(lock,0,1);
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	269 CHECK_STATUS("sem_init");
22339 6c3e32357d91 Patch #525532: Add support for POSIX semaphores. Martin v. Löwis <martin@v.loewis.de> parents: 21766 diff changeset	270
61465 e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	271 if (error) {
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	272 free((void *)lock);
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	273 lock = NULL;
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	274 }
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	275 }
22339 6c3e32357d91 Patch #525532: Add support for POSIX semaphores. Martin v. Löwis <martin@v.loewis.de> parents: 21766 diff changeset	276
61465 e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	277 dprintf(("PyThread_allocate_lock() -> %p\n", lock));
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	278 return (PyThread_type_lock)lock;
22339 6c3e32357d91 Patch #525532: Add support for POSIX semaphores. Martin v. Löwis <martin@v.loewis.de> parents: 21766 diff changeset	279 }
6c3e32357d91 Patch #525532: Add support for POSIX semaphores. Martin v. Löwis <martin@v.loewis.de> parents: 21766 diff changeset	280
61465 e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	281 void
22339 6c3e32357d91 Patch #525532: Add support for POSIX semaphores. Martin v. Löwis <martin@v.loewis.de> parents: 21766 diff changeset	282 PyThread_free_lock(PyThread_type_lock lock)
6c3e32357d91 Patch #525532: Add support for POSIX semaphores. Martin v. Löwis <martin@v.loewis.de> parents: 21766 diff changeset	283 {
61465 e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	284 sem_t thelock = (sem_t )lock;
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	285 int status, error = 0;
22339 6c3e32357d91 Patch #525532: Add support for POSIX semaphores. Martin v. Löwis <martin@v.loewis.de> parents: 21766 diff changeset	286
80731 0adfbafe8a99 Closes #16588: Silence unused-but-set warnings in Python/thread_pthread.h Jesus Cea <jcea@jcea.es> parents: 70447 diff changeset	287 (void) error; /* silence unused-but-set-variable warning */
61465 e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	288 dprintf(("PyThread_free_lock(%p) called\n", lock));
22339 6c3e32357d91 Patch #525532: Add support for POSIX semaphores. Martin v. Löwis <martin@v.loewis.de> parents: 21766 diff changeset	289
61465 e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	290 if (!thelock)
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	291 return;
22339 6c3e32357d91 Patch #525532: Add support for POSIX semaphores. Martin v. Löwis <martin@v.loewis.de> parents: 21766 diff changeset	292
61465 e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	293 status = sem_destroy(thelock);
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	294 CHECK_STATUS("sem_destroy");
22339 6c3e32357d91 Patch #525532: Add support for POSIX semaphores. Martin v. Löwis <martin@v.loewis.de> parents: 21766 diff changeset	295
61465 e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	296 free((void *)thelock);
22339 6c3e32357d91 Patch #525532: Add support for POSIX semaphores. Martin v. Löwis <martin@v.loewis.de> parents: 21766 diff changeset	297 }
6c3e32357d91 Patch #525532: Add support for POSIX semaphores. Martin v. Löwis <martin@v.loewis.de> parents: 21766 diff changeset	298
6c3e32357d91 Patch #525532: Add support for POSIX semaphores. Martin v. Löwis <martin@v.loewis.de> parents: 21766 diff changeset	299 /*
6c3e32357d91 Patch #525532: Add support for POSIX semaphores. Martin v. Löwis <martin@v.loewis.de> parents: 21766 diff changeset	300 * As of February 2002, Cygwin thread implementations mistakenly report error
6c3e32357d91 Patch #525532: Add support for POSIX semaphores. Martin v. Löwis <martin@v.loewis.de> parents: 21766 diff changeset	301 * codes in the return value of the sem_ calls (like the pthread_ functions).
6c3e32357d91 Patch #525532: Add support for POSIX semaphores. Martin v. Löwis <martin@v.loewis.de> parents: 21766 diff changeset	302 * Correct implementations return -1 and put the code in errno. This supports
6c3e32357d91 Patch #525532: Add support for POSIX semaphores. Martin v. Löwis <martin@v.loewis.de> parents: 21766 diff changeset	303 * either.
6c3e32357d91 Patch #525532: Add support for POSIX semaphores. Martin v. Löwis <martin@v.loewis.de> parents: 21766 diff changeset	304 */
6c3e32357d91 Patch #525532: Add support for POSIX semaphores. Martin v. Löwis <martin@v.loewis.de> parents: 21766 diff changeset	305 static int
6c3e32357d91 Patch #525532: Add support for POSIX semaphores. Martin v. Löwis <martin@v.loewis.de> parents: 21766 diff changeset	306 fix_status(int status)
6c3e32357d91 Patch #525532: Add support for POSIX semaphores. Martin v. Löwis <martin@v.loewis.de> parents: 21766 diff changeset	307 {
61465 e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	308 return (status == -1) ? errno : status;
22339 6c3e32357d91 Patch #525532: Add support for POSIX semaphores. Martin v. Löwis <martin@v.loewis.de> parents: 21766 diff changeset	309 }
6c3e32357d91 Patch #525532: Add support for POSIX semaphores. Martin v. Löwis <martin@v.loewis.de> parents: 21766 diff changeset	310
61465 e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	311 int
22339 6c3e32357d91 Patch #525532: Add support for POSIX semaphores. Martin v. Löwis <martin@v.loewis.de> parents: 21766 diff changeset	312 PyThread_acquire_lock(PyThread_type_lock lock, int waitflag)
6c3e32357d91 Patch #525532: Add support for POSIX semaphores. Martin v. Löwis <martin@v.loewis.de> parents: 21766 diff changeset	313 {
61465 e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	314 int success;
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	315 sem_t thelock = (sem_t )lock;
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	316 int status, error = 0;
22339 6c3e32357d91 Patch #525532: Add support for POSIX semaphores. Martin v. Löwis <martin@v.loewis.de> parents: 21766 diff changeset	317
80731 0adfbafe8a99 Closes #16588: Silence unused-but-set warnings in Python/thread_pthread.h Jesus Cea <jcea@jcea.es> parents: 70447 diff changeset	318 (void) error; /* silence unused-but-set-variable warning */
61465 e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	319 dprintf(("PyThread_acquire_lock(%p, %d) called\n", lock, waitflag));
22339 6c3e32357d91 Patch #525532: Add support for POSIX semaphores. Martin v. Löwis <martin@v.loewis.de> parents: 21766 diff changeset	320
61465 e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	321 do {
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	322 if (waitflag)
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	323 status = fix_status(sem_wait(thelock));
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	324 else
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	325 status = fix_status(sem_trywait(thelock));
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	326 } while (status == EINTR); /* Retry if interrupted by a signal */
22339 6c3e32357d91 Patch #525532: Add support for POSIX semaphores. Martin v. Löwis <martin@v.loewis.de> parents: 21766 diff changeset	327
61465 e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	328 if (waitflag) {
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	329 CHECK_STATUS("sem_wait");
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	330 } else if (status != EAGAIN) {
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	331 CHECK_STATUS("sem_trywait");
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	332 }
22339 6c3e32357d91 Patch #525532: Add support for POSIX semaphores. Martin v. Löwis <martin@v.loewis.de> parents: 21766 diff changeset	333
61465 e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	334 success = (status == 0) ? 1 : 0;
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	335
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	336 dprintf(("PyThread_acquire_lock(%p, %d) -> %d\n", lock, waitflag, success));
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	337 return success;
22339 6c3e32357d91 Patch #525532: Add support for POSIX semaphores. Martin v. Löwis <martin@v.loewis.de> parents: 21766 diff changeset	338 }
6c3e32357d91 Patch #525532: Add support for POSIX semaphores. Martin v. Löwis <martin@v.loewis.de> parents: 21766 diff changeset	339
61465 e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	340 void
22339 6c3e32357d91 Patch #525532: Add support for POSIX semaphores. Martin v. Löwis <martin@v.loewis.de> parents: 21766 diff changeset	341 PyThread_release_lock(PyThread_type_lock lock)
6c3e32357d91 Patch #525532: Add support for POSIX semaphores. Martin v. Löwis <martin@v.loewis.de> parents: 21766 diff changeset	342 {
61465 e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	343 sem_t thelock = (sem_t )lock;
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	344 int status, error = 0;
22339 6c3e32357d91 Patch #525532: Add support for POSIX semaphores. Martin v. Löwis <martin@v.loewis.de> parents: 21766 diff changeset	345
80731 0adfbafe8a99 Closes #16588: Silence unused-but-set warnings in Python/thread_pthread.h Jesus Cea <jcea@jcea.es> parents: 70447 diff changeset	346 (void) error; /* silence unused-but-set-variable warning */
61465 e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	347 dprintf(("PyThread_release_lock(%p) called\n", lock));
22339 6c3e32357d91 Patch #525532: Add support for POSIX semaphores. Martin v. Löwis <martin@v.loewis.de> parents: 21766 diff changeset	348
61465 e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	349 status = sem_post(thelock);
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	350 CHECK_STATUS("sem_post");
22339 6c3e32357d91 Patch #525532: Add support for POSIX semaphores. Martin v. Löwis <martin@v.loewis.de> parents: 21766 diff changeset	351 }
6c3e32357d91 Patch #525532: Add support for POSIX semaphores. Martin v. Löwis <martin@v.loewis.de> parents: 21766 diff changeset	352
6c3e32357d91 Patch #525532: Add support for POSIX semaphores. Martin v. Löwis <martin@v.loewis.de> parents: 21766 diff changeset	353 #else /* USE_SEMAPHORES */
6c3e32357d91 Patch #525532: Add support for POSIX semaphores. Martin v. Löwis <martin@v.loewis.de> parents: 21766 diff changeset	354
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	355 /*
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	356 * Lock support.
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	357 */
61465 e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	358 PyThread_type_lock
13658 f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern' Thomas Wouters <thomas@python.org> parents: 13256 diff changeset	359 PyThread_allocate_lock(void)
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	360 {
61465 e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	361 pthread_lock *lock;
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	362 int status, error = 0;
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	363
61465 e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	364 dprintf(("PyThread_allocate_lock called\n"));
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	365 if (!initialized)
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	366 PyThread_init_thread();
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	367
61465 e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	368 lock = (pthread_lock *) malloc(sizeof(pthread_lock));
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	369 if (lock) {
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	370 memset((void *)lock, '\0', sizeof(pthread_lock));
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	371 lock->locked = 0;
1629 4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	372
61465 e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	373 status = pthread_mutex_init(&lock->mut,
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	374 pthread_mutexattr_default);
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	375 CHECK_STATUS("pthread_mutex_init");
1629 4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	376
61465 e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	377 status = pthread_cond_init(&lock->lock_released,
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	378 pthread_condattr_default);
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	379 CHECK_STATUS("pthread_cond_init");
1629 4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	380
61465 e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	381 if (error) {
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	382 free((void *)lock);
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	383 lock = 0;
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	384 }
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	385 }
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	386
61465 e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	387 dprintf(("PyThread_allocate_lock() -> %p\n", lock));
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	388 return (PyThread_type_lock) lock;
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	389 }
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	390
61465 e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	391 void
13658 f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern' Thomas Wouters <thomas@python.org> parents: 13256 diff changeset	392 PyThread_free_lock(PyThread_type_lock lock)
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	393 {
61465 e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	394 pthread_lock thelock = (pthread_lock )lock;
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	395 int status, error = 0;
1629 4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	396
61465 e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	397 dprintf(("PyThread_free_lock(%p) called\n", lock));
1629 4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	398
61465 e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	399 status = pthread_mutex_destroy( &thelock->mut );
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	400 CHECK_STATUS("pthread_mutex_destroy");
1629 4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	401
61465 e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	402 status = pthread_cond_destroy( &thelock->lock_released );
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	403 CHECK_STATUS("pthread_cond_destroy");
1629 4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	404
61465 e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	405 free((void *)thelock);
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	406 }
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	407
61465 e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	408 int
13658 f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern' Thomas Wouters <thomas@python.org> parents: 13256 diff changeset	409 PyThread_acquire_lock(PyThread_type_lock lock, int waitflag)
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	410 {
61465 e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	411 int success;
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	412 pthread_lock thelock = (pthread_lock )lock;
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	413 int status, error = 0;
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	414
61465 e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	415 dprintf(("PyThread_acquire_lock(%p, %d) called\n", lock, waitflag));
1629 4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	416
61465 e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	417 status = pthread_mutex_lock( &thelock->mut );
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	418 CHECK_STATUS("pthread_mutex_lock[1]");
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	419 success = thelock->locked == 0;
1629 4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	420
61465 e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	421 if ( !success && waitflag ) {
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	422 /* continue trying until we get the lock */
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	423
61465 e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	424 /* mut must be locked by me -- part of the condition
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	425 * protocol */
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	426 while ( thelock->locked ) {
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	427 status = pthread_cond_wait(&thelock->lock_released,
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	428 &thelock->mut);
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	429 CHECK_STATUS("pthread_cond_wait");
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	430 }
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	431 success = 1;
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	432 }
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	433 if (success) thelock->locked = 1;
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	434 status = pthread_mutex_unlock( &thelock->mut );
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	435 CHECK_STATUS("pthread_mutex_unlock[1]");
28673 c1ba50790c83 Patch #711835: Remove unnecessary lock operations. Will backport to 2.2. Martin v. Löwis <martin@v.loewis.de> parents: 27320 diff changeset	436
61465 e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	437 if (error) success = 0;
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	438 dprintf(("PyThread_acquire_lock(%p, %d) -> %d\n", lock, waitflag, success));
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	439 return success;
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	440 }
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	441
61465 e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	442 void
13658 f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern' Thomas Wouters <thomas@python.org> parents: 13256 diff changeset	443 PyThread_release_lock(PyThread_type_lock lock)
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	444 {
61465 e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	445 pthread_lock thelock = (pthread_lock )lock;
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	446 int status, error = 0;
1629 4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	447
61465 e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	448 dprintf(("PyThread_release_lock(%p) called\n", lock));
1629 4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	449
61465 e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	450 status = pthread_mutex_lock( &thelock->mut );
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	451 CHECK_STATUS("pthread_mutex_lock[3]");
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	452
61465 e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	453 thelock->locked = 0;
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	454
61465 e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	455 status = pthread_mutex_unlock( &thelock->mut );
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	456 CHECK_STATUS("pthread_mutex_unlock[3]");
1629 4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	457
61465 e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	458 /* wake up someone (anyone, if any) waiting on the lock */
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	459 status = pthread_cond_signal( &thelock->lock_released );
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	460 CHECK_STATUS("pthread_cond_signal");
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	461 }
22339 6c3e32357d91 Patch #525532: Add support for POSIX semaphores. Martin v. Löwis <martin@v.loewis.de> parents: 21766 diff changeset	462
6c3e32357d91 Patch #525532: Add support for POSIX semaphores. Martin v. Löwis <martin@v.loewis.de> parents: 21766 diff changeset	463 #endif /* USE_SEMAPHORES */
38794 f7d23bca599f Patch #1454481: Make thread stack size runtime tunable. Andrew MacIntyre <andymac@bullseye.apana.org.au> parents: 38592 diff changeset	464
f7d23bca599f Patch #1454481: Make thread stack size runtime tunable. Andrew MacIntyre <andymac@bullseye.apana.org.au> parents: 38592 diff changeset	465 /* set the thread stack size.
f7d23bca599f Patch #1454481: Make thread stack size runtime tunable. Andrew MacIntyre <andymac@bullseye.apana.org.au> parents: 38592 diff changeset	466 * Return 0 if size is valid, -1 if size is invalid,
f7d23bca599f Patch #1454481: Make thread stack size runtime tunable. Andrew MacIntyre <andymac@bullseye.apana.org.au> parents: 38592 diff changeset	467 * -2 if setting stack size is not supported.
f7d23bca599f Patch #1454481: Make thread stack size runtime tunable. Andrew MacIntyre <andymac@bullseye.apana.org.au> parents: 38592 diff changeset	468 */
f7d23bca599f Patch #1454481: Make thread stack size runtime tunable. Andrew MacIntyre <andymac@bullseye.apana.org.au> parents: 38592 diff changeset	469 static int
f7d23bca599f Patch #1454481: Make thread stack size runtime tunable. Andrew MacIntyre <andymac@bullseye.apana.org.au> parents: 38592 diff changeset	470 _pythread_pthread_set_stacksize(size_t size)
f7d23bca599f Patch #1454481: Make thread stack size runtime tunable. Andrew MacIntyre <andymac@bullseye.apana.org.au> parents: 38592 diff changeset	471 {
f7d23bca599f Patch #1454481: Make thread stack size runtime tunable. Andrew MacIntyre <andymac@bullseye.apana.org.au> parents: 38592 diff changeset	472 #if defined(THREAD_STACK_SIZE)
61465 e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	473 pthread_attr_t attrs;
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	474 size_t tss_min;
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	475 int rc = 0;
38794 f7d23bca599f Patch #1454481: Make thread stack size runtime tunable. Andrew MacIntyre <andymac@bullseye.apana.org.au> parents: 38592 diff changeset	476 #endif
f7d23bca599f Patch #1454481: Make thread stack size runtime tunable. Andrew MacIntyre <andymac@bullseye.apana.org.au> parents: 38592 diff changeset	477
61465 e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	478 /* set to default */
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	479 if (size == 0) {
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	480 _pythread_stacksize = 0;
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	481 return 0;
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	482 }
38794 f7d23bca599f Patch #1454481: Make thread stack size runtime tunable. Andrew MacIntyre <andymac@bullseye.apana.org.au> parents: 38592 diff changeset	483
f7d23bca599f Patch #1454481: Make thread stack size runtime tunable. Andrew MacIntyre <andymac@bullseye.apana.org.au> parents: 38592 diff changeset	484 #if defined(THREAD_STACK_SIZE)
f7d23bca599f Patch #1454481: Make thread stack size runtime tunable. Andrew MacIntyre <andymac@bullseye.apana.org.au> parents: 38592 diff changeset	485 #if defined(PTHREAD_STACK_MIN)
61465 e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	486 tss_min = PTHREAD_STACK_MIN > THREAD_STACK_MIN ? PTHREAD_STACK_MIN
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	487 : THREAD_STACK_MIN;
38794 f7d23bca599f Patch #1454481: Make thread stack size runtime tunable. Andrew MacIntyre <andymac@bullseye.apana.org.au> parents: 38592 diff changeset	488 #else
61465 e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	489 tss_min = THREAD_STACK_MIN;
38794 f7d23bca599f Patch #1454481: Make thread stack size runtime tunable. Andrew MacIntyre <andymac@bullseye.apana.org.au> parents: 38592 diff changeset	490 #endif
61465 e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	491 if (size >= tss_min) {
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	492 /* validate stack size by setting thread attribute */
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	493 if (pthread_attr_init(&attrs) == 0) {
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	494 rc = pthread_attr_setstacksize(&attrs, size);
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	495 pthread_attr_destroy(&attrs);
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	496 if (rc == 0) {
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	497 _pythread_stacksize = size;
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	498 return 0;
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	499 }
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	500 }
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	501 }
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	502 return -1;
38794 f7d23bca599f Patch #1454481: Make thread stack size runtime tunable. Andrew MacIntyre <andymac@bullseye.apana.org.au> parents: 38592 diff changeset	503 #else
61465 e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	504 return -2;
38794 f7d23bca599f Patch #1454481: Make thread stack size runtime tunable. Andrew MacIntyre <andymac@bullseye.apana.org.au> parents: 38592 diff changeset	505 #endif
f7d23bca599f Patch #1454481: Make thread stack size runtime tunable. Andrew MacIntyre <andymac@bullseye.apana.org.au> parents: 38592 diff changeset	506 }
f7d23bca599f Patch #1454481: Make thread stack size runtime tunable. Andrew MacIntyre <andymac@bullseye.apana.org.au> parents: 38592 diff changeset	507
61465 e38335d4df91 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 38794 diff changeset	508 #define THREAD_SET_STACKSIZE(x) _pythread_pthread_set_stacksize(x)

Mercurial > cpython-lru_cache-weakref

annotate Python/thread_pthread.h @ 80731:0adfbafe8a99 2.7