Mercurial > cpython-lru_cache-weakref

annotate Python/thread_pthread.h @ 29223:ea2958bd4271 legacy-trunk

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Remove comment with very long lines that explained what the code used to do. XXX Please be careful when checking in patches to avoid checking in junk that explains what the patched code used to do.
author Jeremy Hylton <jeremy@alum.mit.edu>
date Thu, 22 May 2003 15:47:02 +0000
parents 40d287c3d906
children a408ac5527c3
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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
2548e2f323fa Document that _POSIX_SEMAPHORES is predefined.
Martin v. Löwis <martin@v.loewis.de>
parents: 22339
diff changeset
15 /* 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
16 family of functions must indicate this by defining
2548e2f323fa Document that _POSIX_SEMAPHORES is predefined.
Martin v. Löwis <martin@v.loewis.de>
parents: 22339
diff changeset
17 _POSIX_SEMAPHORES. */
22339
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
18 #ifdef _POSIX_SEMAPHORES
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
19 #include <semaphore.h>
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
20 #include <errno.h>
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
21 #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
22
5493
ef93d51dab36 Support for various versions of the pthread draft.
Guido van Rossum <guido@python.org>
parents: 5395
diff changeset
23
ef93d51dab36 Support for various versions of the pthread draft.
Guido van Rossum <guido@python.org>
parents: 5395
diff changeset
24 /* try to determine what version of the Pthread Standard is installed.
ef93d51dab36 Support for various versions of the pthread draft.
Guido van Rossum <guido@python.org>
parents: 5395
diff changeset
25 * this is important, since all sorts of parameter types changed from
ef93d51dab36 Support for various versions of the pthread draft.
Guido van Rossum <guido@python.org>
parents: 5395
diff changeset
26 * draft to draft and there are several (incompatible) drafts in
ef93d51dab36 Support for various versions of the pthread draft.
Guido van Rossum <guido@python.org>
parents: 5395
diff changeset
27 * common use. these macros are a start, at least.
ef93d51dab36 Support for various versions of the pthread draft.
Guido van Rossum <guido@python.org>
parents: 5395
diff changeset
28 * 12 May 1997 -- david arnold <davida@pobox.com>
ef93d51dab36 Support for various versions of the pthread draft.
Guido van Rossum <guido@python.org>
parents: 5395
diff changeset
29 */
3965
9c05ff6fb0a4 Changes necessary for AIX.
Guido van Rossum <guido@python.org>
parents: 3663
diff changeset
30
5493
ef93d51dab36 Support for various versions of the pthread draft.
Guido van Rossum <guido@python.org>
parents: 5395
diff changeset
31 #if defined(__ultrix) && defined(__mips) && defined(_DECTHREADS_)
ef93d51dab36 Support for various versions of the pthread draft.
Guido van Rossum <guido@python.org>
parents: 5395
diff changeset
32 /* _DECTHREADS_ is defined in cma.h which is included by pthread.h */
ef93d51dab36 Support for various versions of the pthread draft.
Guido van Rossum <guido@python.org>
parents: 5395
diff changeset
33 # define PY_PTHREAD_D4
26499
76f79bb36fc7 Add compile-time errors for unsupported systems.
Martin v. Löwis <martin@v.loewis.de>
parents: 25545
diff changeset
34 # error Systems with PY_PTHREAD_D4 are unsupported. See README.
5493
ef93d51dab36 Support for various versions of the pthread draft.
Guido van Rossum <guido@python.org>
parents: 5395
diff changeset
35
ef93d51dab36 Support for various versions of the pthread draft.
Guido van Rossum <guido@python.org>
parents: 5395
diff changeset
36 #elif defined(__osf__) && defined (__alpha)
ef93d51dab36 Support for various versions of the pthread draft.
Guido van Rossum <guido@python.org>
parents: 5395
diff changeset
37 /* _DECTHREADS_ is defined in cma.h which is included by pthread.h */
ef93d51dab36 Support for various versions of the pthread draft.
Guido van Rossum <guido@python.org>
parents: 5395
diff changeset
38 # if !defined(_PTHREAD_ENV_ALPHA) || defined(_PTHREAD_USE_D4) || defined(PTHREAD_USE_D4)
ef93d51dab36 Support for various versions of the pthread draft.
Guido van Rossum <guido@python.org>
parents: 5395
diff changeset
39 # define PY_PTHREAD_D4
26499
76f79bb36fc7 Add compile-time errors for unsupported systems.
Martin v. Löwis <martin@v.loewis.de>
parents: 25545
diff changeset
40 # error Systems with PY_PTHREAD_D4 are unsupported. See README.
5493
ef93d51dab36 Support for various versions of the pthread draft.
Guido van Rossum <guido@python.org>
parents: 5395
diff changeset
41 # else
ef93d51dab36 Support for various versions of the pthread draft.
Guido van Rossum <guido@python.org>
parents: 5395
diff changeset
42 # define PY_PTHREAD_STD
ef93d51dab36 Support for various versions of the pthread draft.
Guido van Rossum <guido@python.org>
parents: 5395
diff changeset
43 # endif
ef93d51dab36 Support for various versions of the pthread draft.
Guido van Rossum <guido@python.org>
parents: 5395
diff changeset
44
ef93d51dab36 Support for various versions of the pthread draft.
Guido van Rossum <guido@python.org>
parents: 5395
diff changeset
45 #elif defined(_AIX)
3965
9c05ff6fb0a4 Changes necessary for AIX.
Guido van Rossum <guido@python.org>
parents: 3663
diff changeset
46 /* SCHED_BG_NP is defined if using AIX DCE pthreads
9c05ff6fb0a4 Changes necessary for AIX.
Guido van Rossum <guido@python.org>
parents: 3663
diff changeset
47 * but it is unsupported by AIX 4 pthreads. Default
9c05ff6fb0a4 Changes necessary for AIX.
Guido van Rossum <guido@python.org>
parents: 3663
diff changeset
48 * attributes for AIX 4 pthreads equal to NULL. For
9c05ff6fb0a4 Changes necessary for AIX.
Guido van Rossum <guido@python.org>
parents: 3663
diff changeset
49 * AIX DCE pthreads they should be left unchanged.
9c05ff6fb0a4 Changes necessary for AIX.
Guido van Rossum <guido@python.org>
parents: 3663
diff changeset
50 */
5493
ef93d51dab36 Support for various versions of the pthread draft.
Guido van Rossum <guido@python.org>
parents: 5395
diff changeset
51 # if !defined(SCHED_BG_NP)
ef93d51dab36 Support for various versions of the pthread draft.
Guido van Rossum <guido@python.org>
parents: 5395
diff changeset
52 # define PY_PTHREAD_STD
ef93d51dab36 Support for various versions of the pthread draft.
Guido van Rossum <guido@python.org>
parents: 5395
diff changeset
53 # else
ef93d51dab36 Support for various versions of the pthread draft.
Guido van Rossum <guido@python.org>
parents: 5395
diff changeset
54 # define PY_PTHREAD_D7
26499
76f79bb36fc7 Add compile-time errors for unsupported systems.
Martin v. Löwis <martin@v.loewis.de>
parents: 25545
diff changeset
55 # error Systems with PY_PTHREAD_D7 are unsupported. See README.
5493
ef93d51dab36 Support for various versions of the pthread draft.
Guido van Rossum <guido@python.org>
parents: 5395
diff changeset
56 # endif
ef93d51dab36 Support for various versions of the pthread draft.
Guido van Rossum <guido@python.org>
parents: 5395
diff changeset
57
5599
b5e51ae9f832 DG/UX thread patches (Ross Andrus)
Guido van Rossum <guido@python.org>
parents: 5529
diff changeset
58 #elif defined(__DGUX)
b5e51ae9f832 DG/UX thread patches (Ross Andrus)
Guido van Rossum <guido@python.org>
parents: 5529
diff changeset
59 # define PY_PTHREAD_D6
26499
76f79bb36fc7 Add compile-time errors for unsupported systems.
Martin v. Löwis <martin@v.loewis.de>
parents: 25545
diff changeset
60 # error Systems with PY_PTHREAD_D6 are unsupported. See README.
5700
60fca4783793 Add default case (standard conformance) to avoid piling up
Guido van Rossum <guido@python.org>
parents: 5599
diff changeset
61
8343
1b4a37f37345 Improved version of patch for HPUX from David Arnold.
Guido van Rossum <guido@python.org>
parents: 8250
diff changeset
62 #elif defined(__hpux) && defined(_DECTHREADS_)
8250
50d35bdf2042 Support HPUX 10.20 DCE threads.
Guido van Rossum <guido@python.org>
parents: 7982
diff changeset
63 # define PY_PTHREAD_D4
26499
76f79bb36fc7 Add compile-time errors for unsupported systems.
Martin v. Löwis <martin@v.loewis.de>
parents: 25545
diff changeset
64 # error Systems with PY_PTHREAD_D4 are unsupported. See README.
8250
50d35bdf2042 Support HPUX 10.20 DCE threads.
Guido van Rossum <guido@python.org>
parents: 7982
diff changeset
65
5700
60fca4783793 Add default case (standard conformance) to avoid piling up
Guido van Rossum <guido@python.org>
parents: 5599
diff changeset
66 #else /* Default case */
60fca4783793 Add default case (standard conformance) to avoid piling up
Guido van Rossum <guido@python.org>
parents: 5599
diff changeset
67 # define PY_PTHREAD_STD
60fca4783793 Add default case (standard conformance) to avoid piling up
Guido van Rossum <guido@python.org>
parents: 5599
diff changeset
68
3965
9c05ff6fb0a4 Changes necessary for AIX.
Guido van Rossum <guido@python.org>
parents: 3663
diff changeset
69 #endif
9c05ff6fb0a4 Changes necessary for AIX.
Guido van Rossum <guido@python.org>
parents: 3663
diff changeset
70
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
71 #ifdef USE_GUSI
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
72 /* The Macintosh GUSI I/O library sets the stackspace to
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
73 ** 20KB, much too low. We up it to 64K.
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
74 */
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
75 #define THREAD_STACK_SIZE 0x10000
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
76 #endif
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
77
5493
ef93d51dab36 Support for various versions of the pthread draft.
Guido van Rossum <guido@python.org>
parents: 5395
diff changeset
78
ef93d51dab36 Support for various versions of the pthread draft.
Guido van Rossum <guido@python.org>
parents: 5395
diff changeset
79 /* set default attribute object for different versions */
ef93d51dab36 Support for various versions of the pthread draft.
Guido van Rossum <guido@python.org>
parents: 5395
diff changeset
80
ef93d51dab36 Support for various versions of the pthread draft.
Guido van Rossum <guido@python.org>
parents: 5395
diff changeset
81 #if defined(PY_PTHREAD_D4) || defined(PY_PTHREAD_D7)
26598
56dbd9079a13 Patch #650415: Avoid redefinition of macros.
Martin v. Löwis <martin@v.loewis.de>
parents: 26499
diff changeset
82 #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
83 # define pthread_attr_default pthread_attr_default
26598
56dbd9079a13 Patch #650415: Avoid redefinition of macros.
Martin v. Löwis <martin@v.loewis.de>
parents: 26499
diff changeset
84 #endif
56dbd9079a13 Patch #650415: Avoid redefinition of macros.
Martin v. Löwis <martin@v.loewis.de>
parents: 26499
diff changeset
85 #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
86 # define pthread_mutexattr_default pthread_mutexattr_default
26598
56dbd9079a13 Patch #650415: Avoid redefinition of macros.
Martin v. Löwis <martin@v.loewis.de>
parents: 26499
diff changeset
87 #endif
56dbd9079a13 Patch #650415: Avoid redefinition of macros.
Martin v. Löwis <martin@v.loewis.de>
parents: 26499
diff changeset
88 #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
89 # define pthread_condattr_default pthread_condattr_default
26598
56dbd9079a13 Patch #650415: Avoid redefinition of macros.
Martin v. Löwis <martin@v.loewis.de>
parents: 26499
diff changeset
90 #endif
5599
b5e51ae9f832 DG/UX thread patches (Ross Andrus)
Guido van Rossum <guido@python.org>
parents: 5529
diff changeset
91 #elif defined(PY_PTHREAD_STD) || defined(PY_PTHREAD_D6)
26598
56dbd9079a13 Patch #650415: Avoid redefinition of macros.
Martin v. Löwis <martin@v.loewis.de>
parents: 26499
diff changeset
92 #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
93 # 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
94 #endif
56dbd9079a13 Patch #650415: Avoid redefinition of macros.
Martin v. Löwis <martin@v.loewis.de>
parents: 26499
diff changeset
95 #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
96 # 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
97 #endif
56dbd9079a13 Patch #650415: Avoid redefinition of macros.
Martin v. Löwis <martin@v.loewis.de>
parents: 26499
diff changeset
98 #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
99 # define pthread_condattr_default ((pthread_condattr_t *)NULL)
3965
9c05ff6fb0a4 Changes necessary for AIX.
Guido van Rossum <guido@python.org>
parents: 3663
diff changeset
100 #endif
26598
56dbd9079a13 Patch #650415: Avoid redefinition of macros.
Martin v. Löwis <martin@v.loewis.de>
parents: 26499
diff changeset
101 #endif
1628
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
102
5493
ef93d51dab36 Support for various versions of the pthread draft.
Guido van Rossum <guido@python.org>
parents: 5395
diff changeset
103
22339
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
104 /* 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
105 * mutexes and condition variables:
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
106 */
27320
1562c1e10b49 Don't use Posix semaphores on Solaris 8. Fixes #662787.
Martin v. Löwis <martin@v.loewis.de>
parents: 26598
diff changeset
107 #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
108 # define USE_SEMAPHORES
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
109 #else
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
110 # undef USE_SEMAPHORES
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
111 #endif
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
112
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
113
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
114 /* 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
115 * 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
116 * 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
117 * 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
118 */
20431
cee0fe5fce11 Do not define _POSIX_THREADS if unistd.h defines it.
Martin v. Löwis <martin@v.loewis.de>
parents: 20398
diff changeset
119 #ifdef HAVE_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
120 # 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
121 #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
122 # 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
123 #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
124
c9a212329da6 Add SF patch #468347 -- mask signals for non-main pthreads, by Jason Lowe:
Guido van Rossum <guido@python.org>
parents: 19826
diff changeset
125
1629
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs
Guido van Rossum <guido@python.org>
parents: 1628
diff changeset
126 /* 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
127 * 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
128 * following are undefined:
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs
Guido van Rossum <guido@python.org>
parents: 1628
diff changeset
129 * -> 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
130 * -> 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
131 * 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
132 * 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
133 * 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
134 *
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs
Guido van Rossum <guido@python.org>
parents: 1628
diff changeset
135 * 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
136 * 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
137 * 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
138 * 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
139 */
1629
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs
Guido van Rossum <guido@python.org>
parents: 1628
diff changeset
140
1628
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
141 typedef struct {
1629
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs
Guido van Rossum <guido@python.org>
parents: 1628
diff changeset
142 char locked; /* 0=unlocked, 1=locked */
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs
Guido van Rossum <guido@python.org>
parents: 1628
diff changeset
143 /* a <cond, mutex> pair to handle an acquire of a locked lock */
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs
Guido van Rossum <guido@python.org>
parents: 1628
diff changeset
144 pthread_cond_t lock_released;
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs
Guido van Rossum <guido@python.org>
parents: 1628
diff changeset
145 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
146 } pthread_lock;
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
147
9290
2340f615da8f BSDI specific patches, inspired by Nigel Head and otto@mail.olympus.net.
Guido van Rossum <guido@python.org>
parents: 9079
diff changeset
148 #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
149
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 * Initialization.
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
152 */
9290
2340f615da8f BSDI specific patches, inspired by Nigel Head and otto@mail.olympus.net.
Guido van Rossum <guido@python.org>
parents: 9079
diff changeset
153
2340f615da8f BSDI specific patches, inspired by Nigel Head and otto@mail.olympus.net.
Guido van Rossum <guido@python.org>
parents: 9079
diff changeset
154 #ifdef _HAVE_BSDI
13658
f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern'
Thomas Wouters <thomas@python.org>
parents: 13256
diff changeset
155 static
f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern'
Thomas Wouters <thomas@python.org>
parents: 13256
diff changeset
156 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
157 {
2340f615da8f BSDI specific patches, inspired by Nigel Head and otto@mail.olympus.net.
Guido van Rossum <guido@python.org>
parents: 9079
diff changeset
158 }
2340f615da8f BSDI specific patches, inspired by Nigel Head and otto@mail.olympus.net.
Guido van Rossum <guido@python.org>
parents: 9079
diff changeset
159
13658
f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern'
Thomas Wouters <thomas@python.org>
parents: 13256
diff changeset
160 static void
f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern'
Thomas Wouters <thomas@python.org>
parents: 13256
diff changeset
161 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
162 {
2340f615da8f BSDI specific patches, inspired by Nigel Head and otto@mail.olympus.net.
Guido van Rossum <guido@python.org>
parents: 9079
diff changeset
163 /* DO AN INIT BY STARTING THE THREAD */
2340f615da8f BSDI specific patches, inspired by Nigel Head and otto@mail.olympus.net.
Guido van Rossum <guido@python.org>
parents: 9079
diff changeset
164 static int dummy = 0;
2340f615da8f BSDI specific patches, inspired by Nigel Head and otto@mail.olympus.net.
Guido van Rossum <guido@python.org>
parents: 9079
diff changeset
165 pthread_t thread1;
2340f615da8f BSDI specific patches, inspired by Nigel Head and otto@mail.olympus.net.
Guido van Rossum <guido@python.org>
parents: 9079
diff changeset
166 pthread_create(&thread1, NULL, (void *) _noop, &dummy);
2340f615da8f BSDI specific patches, inspired by Nigel Head and otto@mail.olympus.net.
Guido van Rossum <guido@python.org>
parents: 9079
diff changeset
167 pthread_join(thread1, NULL);
2340f615da8f BSDI specific patches, inspired by Nigel Head and otto@mail.olympus.net.
Guido van Rossum <guido@python.org>
parents: 9079
diff changeset
168 }
2340f615da8f BSDI specific patches, inspired by Nigel Head and otto@mail.olympus.net.
Guido van Rossum <guido@python.org>
parents: 9079
diff changeset
169
2340f615da8f BSDI specific patches, inspired by Nigel Head and otto@mail.olympus.net.
Guido van Rossum <guido@python.org>
parents: 9079
diff changeset
170 #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
171
13658
f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern'
Thomas Wouters <thomas@python.org>
parents: 13256
diff changeset
172 static void
f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern'
Thomas Wouters <thomas@python.org>
parents: 13256
diff changeset
173 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
174 {
9079
4d2cb212c8d1 Apparently on AIX when using gcc you need to call pthread_init()
Guido van Rossum <guido@python.org>
parents: 9070
diff changeset
175 #if defined(_AIX) && defined(__GNUC__)
4d2cb212c8d1 Apparently on AIX when using gcc you need to call pthread_init()
Guido van Rossum <guido@python.org>
parents: 9070
diff changeset
176 pthread_init();
4d2cb212c8d1 Apparently on AIX when using gcc you need to call pthread_init()
Guido van Rossum <guido@python.org>
parents: 9070
diff changeset
177 #endif
1628
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
178 }
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
179
9290
2340f615da8f BSDI specific patches, inspired by Nigel Head and otto@mail.olympus.net.
Guido van Rossum <guido@python.org>
parents: 9079
diff changeset
180 #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
181
1628
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
182 /*
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
183 * Thread support.
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
184 */
1629
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs
Guido van Rossum <guido@python.org>
parents: 1628
diff changeset
185
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs
Guido van Rossum <guido@python.org>
parents: 1628
diff changeset
186
20468
ebfd87e87884 Partial patch from SF #452266, by Jason Petrone.
Guido van Rossum <guido@python.org>
parents: 20431
diff changeset
187 long
13658
f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern'
Thomas Wouters <thomas@python.org>
parents: 13256
diff changeset
188 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
189 {
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
190 pthread_t 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
191 int status;
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 sigset_t oldmask, newmask;
19826
8ef456949b76 Improve threading on Solaris, according to SF patch #460269, submitted
Guido van Rossum <guido@python.org>
parents: 19549
diff changeset
193 #if defined(THREAD_STACK_SIZE) || defined(PTHREAD_SYSTEM_SCHED_SUPPORTED)
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
194 pthread_attr_t attrs;
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
195 #endif
9679
877d23bd5bdc Thanks to Chris Herborth, the thread primitives now have proper Py*
Guido van Rossum <guido@python.org>
parents: 9290
diff changeset
196 dprintf(("PyThread_start_new_thread called\n"));
1628
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
197 if (!initialized)
9679
877d23bd5bdc Thanks to Chris Herborth, the thread primitives now have proper Py*
Guido van Rossum <guido@python.org>
parents: 9290
diff changeset
198 PyThread_init_thread();
5493
ef93d51dab36 Support for various versions of the pthread draft.
Guido van Rossum <guido@python.org>
parents: 5395
diff changeset
199
19826
8ef456949b76 Improve threading on Solaris, according to SF patch #460269, submitted
Guido van Rossum <guido@python.org>
parents: 19549
diff changeset
200 #if defined(THREAD_STACK_SIZE) || defined(PTHREAD_SYSTEM_SCHED_SUPPORTED)
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
201 pthread_attr_init(&attrs);
19826
8ef456949b76 Improve threading on Solaris, according to SF patch #460269, submitted
Guido van Rossum <guido@python.org>
parents: 19549
diff changeset
202 #endif
8ef456949b76 Improve threading on Solaris, according to SF patch #460269, submitted
Guido van Rossum <guido@python.org>
parents: 19549
diff changeset
203 #ifdef THREAD_STACK_SIZE
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
204 pthread_attr_setstacksize(&attrs, THREAD_STACK_SIZE);
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
19826
8ef456949b76 Improve threading on Solaris, according to SF patch #460269, submitted
Guido van Rossum <guido@python.org>
parents: 19549
diff changeset
206 #ifdef PTHREAD_SYSTEM_SCHED_SUPPORTED
8ef456949b76 Improve threading on Solaris, according to SF patch #460269, submitted
Guido van Rossum <guido@python.org>
parents: 19549
diff changeset
207 pthread_attr_setscope(&attrs, PTHREAD_SCOPE_SYSTEM);
8ef456949b76 Improve threading on Solaris, according to SF patch #460269, submitted
Guido van Rossum <guido@python.org>
parents: 19549
diff changeset
208 #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
209
c9a212329da6 Add SF patch #468347 -- mask signals for non-main pthreads, by Jason Lowe:
Guido van Rossum <guido@python.org>
parents: 19826
diff changeset
210 /* Mask all signals in the current thread before creating the new
c9a212329da6 Add SF patch #468347 -- mask signals for non-main pthreads, by Jason Lowe:
Guido van Rossum <guido@python.org>
parents: 19826
diff changeset
211 * thread. This causes the new thread to start with all signals
c9a212329da6 Add SF patch #468347 -- mask signals for non-main pthreads, by Jason Lowe:
Guido van Rossum <guido@python.org>
parents: 19826
diff changeset
212 * blocked.
c9a212329da6 Add SF patch #468347 -- mask signals for non-main pthreads, by Jason Lowe:
Guido van Rossum <guido@python.org>
parents: 19826
diff changeset
213 */
c9a212329da6 Add SF patch #468347 -- mask signals for non-main pthreads, by Jason Lowe:
Guido van Rossum <guido@python.org>
parents: 19826
diff changeset
214 sigfillset(&newmask);
c9a212329da6 Add SF patch #468347 -- mask signals for non-main pthreads, by Jason Lowe:
Guido van Rossum <guido@python.org>
parents: 19826
diff changeset
215 SET_THREAD_SIGMASK(SIG_BLOCK, &newmask, &oldmask);
c9a212329da6 Add SF patch #468347 -- mask signals for non-main pthreads, by Jason Lowe:
Guido van Rossum <guido@python.org>
parents: 19826
diff changeset
216
28687
40d287c3d906 Patch #716969: Detect thread creation failure. Will backport to 2.2.
Martin v. Löwis <martin@v.loewis.de>
parents: 28673
diff changeset
217 status = pthread_create(&th,
5493
ef93d51dab36 Support for various versions of the pthread draft.
Guido van Rossum <guido@python.org>
parents: 5395
diff changeset
218 #if defined(PY_PTHREAD_D4)
ef93d51dab36 Support for various versions of the pthread draft.
Guido van Rossum <guido@python.org>
parents: 5395
diff changeset
219 pthread_attr_default,
ef93d51dab36 Support for various versions of the pthread draft.
Guido van Rossum <guido@python.org>
parents: 5395
diff changeset
220 (pthread_startroutine_t)func,
ef93d51dab36 Support for various versions of the pthread draft.
Guido van Rossum <guido@python.org>
parents: 5395
diff changeset
221 (pthread_addr_t)arg
5599
b5e51ae9f832 DG/UX thread patches (Ross Andrus)
Guido van Rossum <guido@python.org>
parents: 5529
diff changeset
222 #elif defined(PY_PTHREAD_D6)
b5e51ae9f832 DG/UX thread patches (Ross Andrus)
Guido van Rossum <guido@python.org>
parents: 5529
diff changeset
223 pthread_attr_default,
13658
f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern'
Thomas Wouters <thomas@python.org>
parents: 13256
diff changeset
224 (void* (*)(void *))func,
5599
b5e51ae9f832 DG/UX thread patches (Ross Andrus)
Guido van Rossum <guido@python.org>
parents: 5529
diff changeset
225 arg
5493
ef93d51dab36 Support for various versions of the pthread draft.
Guido van Rossum <guido@python.org>
parents: 5395
diff changeset
226 #elif defined(PY_PTHREAD_D7)
ef93d51dab36 Support for various versions of the pthread draft.
Guido van Rossum <guido@python.org>
parents: 5395
diff changeset
227 pthread_attr_default,
ef93d51dab36 Support for various versions of the pthread draft.
Guido van Rossum <guido@python.org>
parents: 5395
diff changeset
228 func,
ef93d51dab36 Support for various versions of the pthread draft.
Guido van Rossum <guido@python.org>
parents: 5395
diff changeset
229 arg
ef93d51dab36 Support for various versions of the pthread draft.
Guido van Rossum <guido@python.org>
parents: 5395
diff changeset
230 #elif defined(PY_PTHREAD_STD)
19826
8ef456949b76 Improve threading on Solaris, according to SF patch #460269, submitted
Guido van Rossum <guido@python.org>
parents: 19549
diff changeset
231 #if defined(THREAD_STACK_SIZE) || defined(PTHREAD_SYSTEM_SCHED_SUPPORTED)
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
232 &attrs,
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
233 #else
5493
ef93d51dab36 Support for various versions of the pthread draft.
Guido van Rossum <guido@python.org>
parents: 5395
diff changeset
234 (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
235 #endif
13658
f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern'
Thomas Wouters <thomas@python.org>
parents: 13256
diff changeset
236 (void* (*)(void *))func,
5493
ef93d51dab36 Support for various versions of the pthread draft.
Guido van Rossum <guido@python.org>
parents: 5395
diff changeset
237 (void *)arg
ef93d51dab36 Support for various versions of the pthread draft.
Guido van Rossum <guido@python.org>
parents: 5395
diff changeset
238 #endif
ef93d51dab36 Support for various versions of the pthread draft.
Guido van Rossum <guido@python.org>
parents: 5395
diff changeset
239 );
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
240
c9a212329da6 Add SF patch #468347 -- mask signals for non-main pthreads, by Jason Lowe:
Guido van Rossum <guido@python.org>
parents: 19826
diff changeset
241 /* Restore signal mask for original thread */
c9a212329da6 Add SF patch #468347 -- mask signals for non-main pthreads, by Jason Lowe:
Guido van Rossum <guido@python.org>
parents: 19826
diff changeset
242 SET_THREAD_SIGMASK(SIG_SETMASK, &oldmask, NULL);
c9a212329da6 Add SF patch #468347 -- mask signals for non-main pthreads, by Jason Lowe:
Guido van Rossum <guido@python.org>
parents: 19826
diff changeset
243
20922
7a991d012cd6 Fix memory leak. This is part of SF patch #478006.
Fred Drake <fdrake@acm.org>
parents: 20468
diff changeset
244 #if defined(THREAD_STACK_SIZE) || defined(PTHREAD_SYSTEM_SCHED_SUPPORTED)
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
245 pthread_attr_destroy(&attrs);
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
246 #endif
28687
40d287c3d906 Patch #716969: Detect thread creation failure. Will backport to 2.2.
Martin v. Löwis <martin@v.loewis.de>
parents: 28673
diff changeset
247 if (status != 0)
40d287c3d906 Patch #716969: Detect thread creation failure. Will backport to 2.2.
Martin v. Löwis <martin@v.loewis.de>
parents: 28673
diff changeset
248 return -1;
40d287c3d906 Patch #716969: Detect thread creation failure. Will backport to 2.2.
Martin v. Löwis <martin@v.loewis.de>
parents: 28673
diff changeset
249
9070
c2cbe9acfc8e Correct typo in #ifdef: PY_THREAD_D4, should be PY_PTHREAD_D4.
Guido van Rossum <guido@python.org>
parents: 9055
diff changeset
250 #if defined(PY_PTHREAD_D4) || defined(PY_PTHREAD_D6) || defined(PY_PTHREAD_D7)
28687
40d287c3d906 Patch #716969: Detect thread creation failure. Will backport to 2.2.
Martin v. Löwis <martin@v.loewis.de>
parents: 28673
diff changeset
251 pthread_detach(&th);
5493
ef93d51dab36 Support for various versions of the pthread draft.
Guido van Rossum <guido@python.org>
parents: 5395
diff changeset
252 #elif defined(PY_PTHREAD_STD)
28687
40d287c3d906 Patch #716969: Detect thread creation failure. Will backport to 2.2.
Martin v. Löwis <martin@v.loewis.de>
parents: 28673
diff changeset
253 pthread_detach(th);
5493
ef93d51dab36 Support for various versions of the pthread draft.
Guido van Rossum <guido@python.org>
parents: 5395
diff changeset
254 #endif
28687
40d287c3d906 Patch #716969: Detect thread creation failure. Will backport to 2.2.
Martin v. Löwis <martin@v.loewis.de>
parents: 28673
diff changeset
255
20468
ebfd87e87884 Partial patch from SF #452266, by Jason Petrone.
Guido van Rossum <guido@python.org>
parents: 20431
diff changeset
256 #if SIZEOF_PTHREAD_T <= SIZEOF_LONG
ebfd87e87884 Partial patch from SF #452266, by Jason Petrone.
Guido van Rossum <guido@python.org>
parents: 20431
diff changeset
257 return (long) th;
ebfd87e87884 Partial patch from SF #452266, by Jason Petrone.
Guido van Rossum <guido@python.org>
parents: 20431
diff changeset
258 #else
ebfd87e87884 Partial patch from SF #452266, by Jason Petrone.
Guido van Rossum <guido@python.org>
parents: 20431
diff changeset
259 return (long) *(long *) &th;
ebfd87e87884 Partial patch from SF #452266, by Jason Petrone.
Guido van Rossum <guido@python.org>
parents: 20431
diff changeset
260 #endif
1628
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
261 }
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
262
14144
31cda87e9ff4 This patch partly (some stuff went in already) ports Python to Monterey.
Trent Mick <trentm@activestate.com>
parents: 13658
diff changeset
263 /* 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
264 hosed" because:
31cda87e9ff4 This patch partly (some stuff went in already) ports Python to Monterey.
Trent Mick <trentm@activestate.com>
parents: 13658
diff changeset
265 - It does not guanrantee the promise that a non-zero integer is returned.
31cda87e9ff4 This patch partly (some stuff went in already) ports Python to Monterey.
Trent Mick <trentm@activestate.com>
parents: 13658
diff changeset
266 - 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
267 - 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
268 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
269 */
13658
f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern'
Thomas Wouters <thomas@python.org>
parents: 13256
diff changeset
270 long
f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern'
Thomas Wouters <thomas@python.org>
parents: 13256
diff changeset
271 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
272 {
9055
5bc64efc65e0 Add a 'volatile' to the declaration of threadid in get_thread_ident().
Guido van Rossum <guido@python.org>
parents: 8343
diff changeset
273 volatile pthread_t threadid;
1651
7e5f97bab1e6 ceval.c: dict of local mapping is now a tuple
Guido van Rossum <guido@python.org>
parents: 1629
diff changeset
274 if (!initialized)
9679
877d23bd5bdc Thanks to Chris Herborth, the thread primitives now have proper Py*
Guido van Rossum <guido@python.org>
parents: 9290
diff changeset
275 PyThread_init_thread();
2097
e4588404fdff Alpha OSF/1 fix
Guido van Rossum <guido@python.org>
parents: 2062
diff changeset
276 /* Jump through some hoops for Alpha OSF/1 */
e4588404fdff Alpha OSF/1 fix
Guido van Rossum <guido@python.org>
parents: 2062
diff changeset
277 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
278 #if SIZEOF_PTHREAD_T <= SIZEOF_LONG
31cda87e9ff4 This patch partly (some stuff went in already) ports Python to Monterey.
Trent Mick <trentm@activestate.com>
parents: 13658
diff changeset
279 return (long) threadid;
31cda87e9ff4 This patch partly (some stuff went in already) ports Python to Monterey.
Trent Mick <trentm@activestate.com>
parents: 13658
diff changeset
280 #else
2097
e4588404fdff Alpha OSF/1 fix
Guido van Rossum <guido@python.org>
parents: 2062
diff changeset
281 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
282 #endif
1651
7e5f97bab1e6 ceval.c: dict of local mapping is now a tuple
Guido van Rossum <guido@python.org>
parents: 1629
diff changeset
283 }
7e5f97bab1e6 ceval.c: dict of local mapping is now a tuple
Guido van Rossum <guido@python.org>
parents: 1629
diff changeset
284
13658
f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern'
Thomas Wouters <thomas@python.org>
parents: 13256
diff changeset
285 static void
f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern'
Thomas Wouters <thomas@python.org>
parents: 13256
diff changeset
286 do_PyThread_exit_thread(int no_cleanup)
1628
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
287 {
9679
877d23bd5bdc Thanks to Chris Herborth, the thread primitives now have proper Py*
Guido van Rossum <guido@python.org>
parents: 9290
diff changeset
288 dprintf(("PyThread_exit_thread called\n"));
7982
a909a2869ac5 Make new gcc -Wall happy
Guido van Rossum <guido@python.org>
parents: 5700
diff changeset
289 if (!initialized) {
1628
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
290 if (no_cleanup)
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
291 _exit(0);
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
292 else
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
293 exit(0);
7982
a909a2869ac5 Make new gcc -Wall happy
Guido van Rossum <guido@python.org>
parents: 5700
diff changeset
294 }
1628
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
295 }
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
296
13658
f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern'
Thomas Wouters <thomas@python.org>
parents: 13256
diff changeset
297 void
f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern'
Thomas Wouters <thomas@python.org>
parents: 13256
diff changeset
298 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
299 {
9679
877d23bd5bdc Thanks to Chris Herborth, the thread primitives now have proper Py*
Guido van Rossum <guido@python.org>
parents: 9290
diff changeset
300 do_PyThread_exit_thread(0);
1628
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
301 }
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
302
13658
f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern'
Thomas Wouters <thomas@python.org>
parents: 13256
diff changeset
303 void
f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern'
Thomas Wouters <thomas@python.org>
parents: 13256
diff changeset
304 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
305 {
9679
877d23bd5bdc Thanks to Chris Herborth, the thread primitives now have proper Py*
Guido van Rossum <guido@python.org>
parents: 9290
diff changeset
306 do_PyThread_exit_thread(1);
1628
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
307 }
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
308
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
309 #ifndef NO_EXIT_PROG
13658
f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern'
Thomas Wouters <thomas@python.org>
parents: 13256
diff changeset
310 static void
f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern'
Thomas Wouters <thomas@python.org>
parents: 13256
diff changeset
311 do_PyThread_exit_prog(int status, int no_cleanup)
1628
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
312 {
9679
877d23bd5bdc Thanks to Chris Herborth, the thread primitives now have proper Py*
Guido van Rossum <guido@python.org>
parents: 9290
diff changeset
313 dprintf(("PyThread_exit_prog(%d) called\n", status));
1628
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
314 if (!initialized)
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
315 if (no_cleanup)
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
316 _exit(status);
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
317 else
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
318 exit(status);
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
319 }
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
320
13658
f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern'
Thomas Wouters <thomas@python.org>
parents: 13256
diff changeset
321 void
f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern'
Thomas Wouters <thomas@python.org>
parents: 13256
diff changeset
322 PyThread_exit_prog(int status)
1628
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
323 {
9679
877d23bd5bdc Thanks to Chris Herborth, the thread primitives now have proper Py*
Guido van Rossum <guido@python.org>
parents: 9290
diff changeset
324 do_PyThread_exit_prog(status, 0);
1628
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
325 }
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
326
13658
f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern'
Thomas Wouters <thomas@python.org>
parents: 13256
diff changeset
327 void
f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern'
Thomas Wouters <thomas@python.org>
parents: 13256
diff changeset
328 PyThread__exit_prog(int status)
1628
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
329 {
9679
877d23bd5bdc Thanks to Chris Herborth, the thread primitives now have proper Py*
Guido van Rossum <guido@python.org>
parents: 9290
diff changeset
330 do_PyThread_exit_prog(status, 1);
1628
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
331 }
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
332 #endif /* NO_EXIT_PROG */
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
333
22339
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
334 #ifdef USE_SEMAPHORES
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
335
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
336 /*
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
337 * Lock support.
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
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
340 PyThread_type_lock
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
341 PyThread_allocate_lock(void)
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
342 {
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
343 sem_t *lock;
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
344 int status, error = 0;
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
345
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
346 dprintf(("PyThread_allocate_lock called\n"));
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
347 if (!initialized)
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
348 PyThread_init_thread();
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
349
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
350 lock = (sem_t *)malloc(sizeof(sem_t));
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 if (lock) {
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
353 status = sem_init(lock,0,1);
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
354 CHECK_STATUS("sem_init");
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
355
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
356 if (error) {
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
357 free((void *)lock);
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
358 lock = NULL;
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
359 }
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
360 }
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
361
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
362 dprintf(("PyThread_allocate_lock() -> %p\n", lock));
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
363 return (PyThread_type_lock)lock;
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
364 }
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
365
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
366 void
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
367 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
368 {
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
369 sem_t *thelock = (sem_t *)lock;
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
370 int status, error = 0;
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
371
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
372 dprintf(("PyThread_free_lock(%p) called\n", lock));
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
373
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
374 if (!thelock)
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
375 return;
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
376
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
377 status = sem_destroy(thelock);
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
378 CHECK_STATUS("sem_destroy");
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
379
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
380 free((void *)thelock);
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
381 }
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
382
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
383 /*
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
384 * 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
385 * 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
386 * 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
387 * either.
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
388 */
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
389 static int
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
390 fix_status(int status)
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
391 {
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
392 return (status == -1) ? errno : status;
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
393 }
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
394
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
395 int
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
396 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
397 {
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
398 int success;
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
399 sem_t *thelock = (sem_t *)lock;
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
400 int status, error = 0;
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
401
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
402 dprintf(("PyThread_acquire_lock(%p, %d) called\n", lock, waitflag));
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
403
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
404 do {
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
405 if (waitflag)
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
406 status = fix_status(sem_wait(thelock));
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
407 else
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
408 status = fix_status(sem_trywait(thelock));
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
409 } while (status == EINTR); /* Retry if interrupted by a signal */
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
410
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
411 if (waitflag) {
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
412 CHECK_STATUS("sem_wait");
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
413 } else if (status != EAGAIN) {
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
414 CHECK_STATUS("sem_trywait");
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
415 }
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
416
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
417 success = (status == 0) ? 1 : 0;
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
418
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
419 dprintf(("PyThread_acquire_lock(%p, %d) -> %d\n", lock, waitflag, success));
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
420 return success;
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
421 }
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
422
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
423 void
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
424 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
425 {
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
426 sem_t *thelock = (sem_t *)lock;
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
427 int status, error = 0;
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
428
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
429 dprintf(("PyThread_release_lock(%p) called\n", lock));
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
430
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
431 status = sem_post(thelock);
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
432 CHECK_STATUS("sem_post");
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
433 }
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
434
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
435 #else /* USE_SEMAPHORES */
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
436
1628
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
437 /*
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
438 * Lock support.
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
439 */
13658
f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern'
Thomas Wouters <thomas@python.org>
parents: 13256
diff changeset
440 PyThread_type_lock
f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern'
Thomas Wouters <thomas@python.org>
parents: 13256
diff changeset
441 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
442 {
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
443 pthread_lock *lock;
1629
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs
Guido van Rossum <guido@python.org>
parents: 1628
diff changeset
444 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
445
9679
877d23bd5bdc Thanks to Chris Herborth, the thread primitives now have proper Py*
Guido van Rossum <guido@python.org>
parents: 9290
diff changeset
446 dprintf(("PyThread_allocate_lock called\n"));
1628
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
447 if (!initialized)
9679
877d23bd5bdc Thanks to Chris Herborth, the thread primitives now have proper Py*
Guido van Rossum <guido@python.org>
parents: 9290
diff changeset
448 PyThread_init_thread();
1628
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
449
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
450 lock = (pthread_lock *) malloc(sizeof(pthread_lock));
9290
2340f615da8f BSDI specific patches, inspired by Nigel Head and otto@mail.olympus.net.
Guido van Rossum <guido@python.org>
parents: 9079
diff changeset
451 memset((void *)lock, '\0', sizeof(pthread_lock));
1629
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs
Guido van Rossum <guido@python.org>
parents: 1628
diff changeset
452 if (lock) {
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs
Guido van Rossum <guido@python.org>
parents: 1628
diff changeset
453 lock->locked = 0;
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs
Guido van Rossum <guido@python.org>
parents: 1628
diff changeset
454
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs
Guido van Rossum <guido@python.org>
parents: 1628
diff changeset
455 status = pthread_mutex_init(&lock->mut,
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs
Guido van Rossum <guido@python.org>
parents: 1628
diff changeset
456 pthread_mutexattr_default);
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs
Guido van Rossum <guido@python.org>
parents: 1628
diff changeset
457 CHECK_STATUS("pthread_mutex_init");
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs
Guido van Rossum <guido@python.org>
parents: 1628
diff changeset
458
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs
Guido van Rossum <guido@python.org>
parents: 1628
diff changeset
459 status = pthread_cond_init(&lock->lock_released,
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs
Guido van Rossum <guido@python.org>
parents: 1628
diff changeset
460 pthread_condattr_default);
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs
Guido van Rossum <guido@python.org>
parents: 1628
diff changeset
461 CHECK_STATUS("pthread_cond_init");
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs
Guido van Rossum <guido@python.org>
parents: 1628
diff changeset
462
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs
Guido van Rossum <guido@python.org>
parents: 1628
diff changeset
463 if (error) {
1628
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
464 free((void *)lock);
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
465 lock = 0;
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
466 }
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
467 }
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
468
13210
ff243b0f16ee Trent Mick <trentm@activestate.com>:
Fred Drake <fdrake@acm.org>
parents: 10400
diff changeset
469 dprintf(("PyThread_allocate_lock() -> %p\n", lock));
9679
877d23bd5bdc Thanks to Chris Herborth, the thread primitives now have proper Py*
Guido van Rossum <guido@python.org>
parents: 9290
diff changeset
470 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
471 }
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
472
13658
f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern'
Thomas Wouters <thomas@python.org>
parents: 13256
diff changeset
473 void
f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern'
Thomas Wouters <thomas@python.org>
parents: 13256
diff changeset
474 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
475 {
1629
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs
Guido van Rossum <guido@python.org>
parents: 1628
diff changeset
476 pthread_lock *thelock = (pthread_lock *)lock;
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs
Guido van Rossum <guido@python.org>
parents: 1628
diff changeset
477 int status, error = 0;
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs
Guido van Rossum <guido@python.org>
parents: 1628
diff changeset
478
13210
ff243b0f16ee Trent Mick <trentm@activestate.com>:
Fred Drake <fdrake@acm.org>
parents: 10400
diff changeset
479 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
480
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs
Guido van Rossum <guido@python.org>
parents: 1628
diff changeset
481 status = pthread_mutex_destroy( &thelock->mut );
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs
Guido van Rossum <guido@python.org>
parents: 1628
diff changeset
482 CHECK_STATUS("pthread_mutex_destroy");
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs
Guido van Rossum <guido@python.org>
parents: 1628
diff changeset
483
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs
Guido van Rossum <guido@python.org>
parents: 1628
diff changeset
484 status = pthread_cond_destroy( &thelock->lock_released );
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs
Guido van Rossum <guido@python.org>
parents: 1628
diff changeset
485 CHECK_STATUS("pthread_cond_destroy");
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs
Guido van Rossum <guido@python.org>
parents: 1628
diff changeset
486
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs
Guido van Rossum <guido@python.org>
parents: 1628
diff changeset
487 free((void *)thelock);
1628
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
488 }
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
489
13658
f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern'
Thomas Wouters <thomas@python.org>
parents: 13256
diff changeset
490 int
f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern'
Thomas Wouters <thomas@python.org>
parents: 13256
diff changeset
491 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
492 {
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
493 int success;
1629
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs
Guido van Rossum <guido@python.org>
parents: 1628
diff changeset
494 pthread_lock *thelock = (pthread_lock *)lock;
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs
Guido van Rossum <guido@python.org>
parents: 1628
diff changeset
495 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
496
13210
ff243b0f16ee Trent Mick <trentm@activestate.com>:
Fred Drake <fdrake@acm.org>
parents: 10400
diff changeset
497 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
498
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs
Guido van Rossum <guido@python.org>
parents: 1628
diff changeset
499 status = pthread_mutex_lock( &thelock->mut );
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs
Guido van Rossum <guido@python.org>
parents: 1628
diff changeset
500 CHECK_STATUS("pthread_mutex_lock[1]");
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs
Guido van Rossum <guido@python.org>
parents: 1628
diff changeset
501 success = thelock->locked == 0;
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs
Guido van Rossum <guido@python.org>
parents: 1628
diff changeset
502
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs
Guido van Rossum <guido@python.org>
parents: 1628
diff changeset
503 if ( !success && waitflag ) {
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs
Guido van Rossum <guido@python.org>
parents: 1628
diff changeset
504 /* 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
505
1629
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs
Guido van Rossum <guido@python.org>
parents: 1628
diff changeset
506 /* mut must be locked by me -- part of the condition
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs
Guido van Rossum <guido@python.org>
parents: 1628
diff changeset
507 * protocol */
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs
Guido van Rossum <guido@python.org>
parents: 1628
diff changeset
508 while ( thelock->locked ) {
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs
Guido van Rossum <guido@python.org>
parents: 1628
diff changeset
509 status = pthread_cond_wait(&thelock->lock_released,
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs
Guido van Rossum <guido@python.org>
parents: 1628
diff changeset
510 &thelock->mut);
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs
Guido van Rossum <guido@python.org>
parents: 1628
diff changeset
511 CHECK_STATUS("pthread_cond_wait");
1628
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
512 }
1629
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs
Guido van Rossum <guido@python.org>
parents: 1628
diff changeset
513 success = 1;
1628
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
514 }
28673
c1ba50790c83 Patch #711835: Remove unnecessary lock operations. Will backport to 2.2.
Martin v. Löwis <martin@v.loewis.de>
parents: 27320
diff changeset
515 if (success) thelock->locked = 1;
c1ba50790c83 Patch #711835: Remove unnecessary lock operations. Will backport to 2.2.
Martin v. Löwis <martin@v.loewis.de>
parents: 27320
diff changeset
516 status = pthread_mutex_unlock( &thelock->mut );
c1ba50790c83 Patch #711835: Remove unnecessary lock operations. Will backport to 2.2.
Martin v. Löwis <martin@v.loewis.de>
parents: 27320
diff changeset
517 CHECK_STATUS("pthread_mutex_unlock[1]");
c1ba50790c83 Patch #711835: Remove unnecessary lock operations. Will backport to 2.2.
Martin v. Löwis <martin@v.loewis.de>
parents: 27320
diff changeset
518
1629
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs
Guido van Rossum <guido@python.org>
parents: 1628
diff changeset
519 if (error) success = 0;
13210
ff243b0f16ee Trent Mick <trentm@activestate.com>:
Fred Drake <fdrake@acm.org>
parents: 10400
diff changeset
520 dprintf(("PyThread_acquire_lock(%p, %d) -> %d\n", lock, waitflag, success));
1628
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
521 return success;
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
522 }
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
523
13658
f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern'
Thomas Wouters <thomas@python.org>
parents: 13256
diff changeset
524 void
f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern'
Thomas Wouters <thomas@python.org>
parents: 13256
diff changeset
525 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
526 {
1629
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs
Guido van Rossum <guido@python.org>
parents: 1628
diff changeset
527 pthread_lock *thelock = (pthread_lock *)lock;
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs
Guido van Rossum <guido@python.org>
parents: 1628
diff changeset
528 int status, error = 0;
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs
Guido van Rossum <guido@python.org>
parents: 1628
diff changeset
529
13210
ff243b0f16ee Trent Mick <trentm@activestate.com>:
Fred Drake <fdrake@acm.org>
parents: 10400
diff changeset
530 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
531
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs
Guido van Rossum <guido@python.org>
parents: 1628
diff changeset
532 status = pthread_mutex_lock( &thelock->mut );
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs
Guido van Rossum <guido@python.org>
parents: 1628
diff changeset
533 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
534
1629
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs
Guido van Rossum <guido@python.org>
parents: 1628
diff changeset
535 thelock->locked = 0;
1628
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
536
1629
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs
Guido van Rossum <guido@python.org>
parents: 1628
diff changeset
537 status = pthread_mutex_unlock( &thelock->mut );
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs
Guido van Rossum <guido@python.org>
parents: 1628
diff changeset
538 CHECK_STATUS("pthread_mutex_unlock[3]");
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs
Guido van Rossum <guido@python.org>
parents: 1628
diff changeset
539
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs
Guido van Rossum <guido@python.org>
parents: 1628
diff changeset
540 /* wake up someone (anyone, if any) waiting on the lock */
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs
Guido van Rossum <guido@python.org>
parents: 1628
diff changeset
541 status = pthread_cond_signal( &thelock->lock_released );
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs
Guido van Rossum <guido@python.org>
parents: 1628
diff changeset
542 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
543 }
22339
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
544
6c3e32357d91 Patch #525532: Add support for POSIX semaphores.
Martin v. Löwis <martin@v.loewis.de>
parents: 21766
diff changeset
545 #endif /* USE_SEMAPHORES */