cpython-lru_cache-weakref: Python/thread.c annotate

annotate Python/thread.c @ 29877:72cbc41ccc2f legacy-trunk

Fix [ 771097 ] frozen programs fail due to implicit import of "warnings". If the initial import of warnings fails, clear the error. When the module is actually needed, if the original import failed, see if it has managed to find its way to sys.modules yet and if so, remember it.

author	Mark Hammond <mhammond@skippinet.com.au>
date	Tue, 15 Jul 2003 23:03:55 +0000
parents	a4154dd5939a
children	1a817694ecbd

rev	line source
1198 2937897a7d8b * Added Fixcprt.py: script to fix copyright message. Guido van Rossum <guido@python.org> parents: 1186 diff changeset	1
1848 b724599401ff Merge back to main trunk Guido van Rossum <guido@python.org> parents: 1418 diff changeset	2 /* Thread package.
b724599401ff Merge back to main trunk Guido van Rossum <guido@python.org> parents: 1418 diff changeset	3 This is intended to be usable independently from Python.
b724599401ff Merge back to main trunk Guido van Rossum <guido@python.org> parents: 1418 diff changeset	4 The implementation for system foobar is in a file thread_foobar.h
b724599401ff Merge back to main trunk Guido van Rossum <guido@python.org> parents: 1418 diff changeset	5 which is included by this file dependent on config settings.
b724599401ff Merge back to main trunk Guido van Rossum <guido@python.org> parents: 1418 diff changeset	6 Stuff shared by all thread_.h files is collected here. /
b724599401ff Merge back to main trunk Guido van Rossum <guido@python.org> parents: 1418 diff changeset	7
21712 c64fc56f6072 Include <unistd.h> in Python.h. Fixes #500924. Martin v. Löwis <martin@v.loewis.de> parents: 20468 diff changeset	8 #include "Python.h"
1848 b724599401ff Merge back to main trunk Guido van Rossum <guido@python.org> parents: 1418 diff changeset	9
10530 d834ecdf8c26 Changes by Mark Hammond for Windows CE. Mostly of the form Guido van Rossum <guido@python.org> parents: 9679 diff changeset	10 #ifndef DONT_HAVE_STDIO_H
1848 b724599401ff Merge back to main trunk Guido van Rossum <guido@python.org> parents: 1418 diff changeset	11 #include <stdio.h>
10530 d834ecdf8c26 Changes by Mark Hammond for Windows CE. Mostly of the form Guido van Rossum <guido@python.org> parents: 9679 diff changeset	12 #endif
1848 b724599401ff Merge back to main trunk Guido van Rossum <guido@python.org> parents: 1418 diff changeset	13
b724599401ff Merge back to main trunk Guido van Rossum <guido@python.org> parents: 1418 diff changeset	14 #ifdef HAVE_STDLIB_H
b724599401ff Merge back to main trunk Guido van Rossum <guido@python.org> parents: 1418 diff changeset	15 #include <stdlib.h>
b724599401ff Merge back to main trunk Guido van Rossum <guido@python.org> parents: 1418 diff changeset	16 #else
10530 d834ecdf8c26 Changes by Mark Hammond for Windows CE. Mostly of the form Guido van Rossum <guido@python.org> parents: 9679 diff changeset	17 #ifdef Py_DEBUG
13658 f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern' Thomas Wouters <thomas@python.org> parents: 13256 diff changeset	18 extern char getenv(const char );
1848 b724599401ff Merge back to main trunk Guido van Rossum <guido@python.org> parents: 1418 diff changeset	19 #endif
10530 d834ecdf8c26 Changes by Mark Hammond for Windows CE. Mostly of the form Guido van Rossum <guido@python.org> parents: 9679 diff changeset	20 #endif
1848 b724599401ff Merge back to main trunk Guido van Rossum <guido@python.org> parents: 1418 diff changeset	21
5599 b5e51ae9f832 DG/UX thread patches (Ross Andrus) Guido van Rossum <guido@python.org> parents: 5381 diff changeset	22 #ifdef __DGUX
b5e51ae9f832 DG/UX thread patches (Ross Andrus) Guido van Rossum <guido@python.org> parents: 5381 diff changeset	23 #define _USING_POSIX4A_DRAFT6
b5e51ae9f832 DG/UX thread patches (Ross Andrus) Guido van Rossum <guido@python.org> parents: 5381 diff changeset	24 #endif
b5e51ae9f832 DG/UX thread patches (Ross Andrus) Guido van Rossum <guido@python.org> parents: 5381 diff changeset	25
5381 339d4129d3f7 Ugly hack for SGI IRIX 6.2. Apparently _POSIX_THREADS is defined even Guido van Rossum <guido@python.org> parents: 4839 diff changeset	26 #ifdef __sgi
339d4129d3f7 Ugly hack for SGI IRIX 6.2. Apparently _POSIX_THREADS is defined even Guido van Rossum <guido@python.org> parents: 4839 diff changeset	27 #ifndef HAVE_PTHREAD_H /* XXX Need to check in configure.in */
339d4129d3f7 Ugly hack for SGI IRIX 6.2. Apparently _POSIX_THREADS is defined even Guido van Rossum <guido@python.org> parents: 4839 diff changeset	28 #undef _POSIX_THREADS
339d4129d3f7 Ugly hack for SGI IRIX 6.2. Apparently _POSIX_THREADS is defined even Guido van Rossum <guido@python.org> parents: 4839 diff changeset	29 #endif
339d4129d3f7 Ugly hack for SGI IRIX 6.2. Apparently _POSIX_THREADS is defined even Guido van Rossum <guido@python.org> parents: 4839 diff changeset	30 #endif
339d4129d3f7 Ugly hack for SGI IRIX 6.2. Apparently _POSIX_THREADS is defined even Guido van Rossum <guido@python.org> parents: 4839 diff changeset	31
9203 07dae6fdae79 Renamed thread.h to pythread.h. Guido van Rossum <guido@python.org> parents: 8822 diff changeset	32 #include "pythread.h"
923 72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	33
1848 b724599401ff Merge back to main trunk Guido van Rossum <guido@python.org> parents: 1418 diff changeset	34 #ifndef _POSIX_THREADS
b724599401ff Merge back to main trunk Guido van Rossum <guido@python.org> parents: 1418 diff changeset	35
923 72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	36 #ifdef __sgi
1848 b724599401ff Merge back to main trunk Guido van Rossum <guido@python.org> parents: 1418 diff changeset	37 #define SGI_THREADS
b724599401ff Merge back to main trunk Guido van Rossum <guido@python.org> parents: 1418 diff changeset	38 #endif
961 a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	39
1848 b724599401ff Merge back to main trunk Guido van Rossum <guido@python.org> parents: 1418 diff changeset	40 #ifdef HAVE_THREAD_H
b724599401ff Merge back to main trunk Guido van Rossum <guido@python.org> parents: 1418 diff changeset	41 #define SOLARIS_THREADS
923 72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	42 #endif
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	43
1848 b724599401ff Merge back to main trunk Guido van Rossum <guido@python.org> parents: 1418 diff changeset	44 #if defined(sun) && !defined(SOLARIS_THREADS)
b724599401ff Merge back to main trunk Guido van Rossum <guido@python.org> parents: 1418 diff changeset	45 #define SUN_LWP
b724599401ff Merge back to main trunk Guido van Rossum <guido@python.org> parents: 1418 diff changeset	46 #endif
b724599401ff Merge back to main trunk Guido van Rossum <guido@python.org> parents: 1418 diff changeset	47
15047 457f0df46dd9 Donn Cave <donn@u.washington.edu>: Fred Drake <fdrake@acm.org> parents: 14674 diff changeset	48 #if defined(__MWERKS__) && !defined(__BEOS__)
12475 c27f484aefff Jack Jansen: Posix threads are now supported on the Macintosh too. Guido van Rossum <guido@python.org> parents: 10530 diff changeset	49 #define _POSIX_THREADS
c27f484aefff Jack Jansen: Posix threads are now supported on the Macintosh too. Guido van Rossum <guido@python.org> parents: 10530 diff changeset	50 #endif
c27f484aefff Jack Jansen: Posix threads are now supported on the Macintosh too. Guido van Rossum <guido@python.org> parents: 10530 diff changeset	51
1418 b1bb74a2b593 Port to Solaris 2.3. Sjoerd Mullender <sjoerd@acm.org> parents: 1350 diff changeset	52 #endif /* _POSIX_THREADS */
923 72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	53
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	54
4839 4567e158d20c Rename DEBUG macro to Py_DEBUG Guido van Rossum <guido@python.org> parents: 4596 diff changeset	55 #ifdef Py_DEBUG
1848 b724599401ff Merge back to main trunk Guido van Rossum <guido@python.org> parents: 1418 diff changeset	56 static int thread_debug = 0;
23992 95da99187c57 Silence compiler warning Jeremy Hylton <jeremy@alum.mit.edu> parents: 23777 diff changeset	57 #define dprintf(args) (void)((thread_debug & 1) && printf args)
1848 b724599401ff Merge back to main trunk Guido van Rossum <guido@python.org> parents: 1418 diff changeset	58 #define d2printf(args) ((thread_debug & 8) && printf args)
b724599401ff Merge back to main trunk Guido van Rossum <guido@python.org> parents: 1418 diff changeset	59 #else
b724599401ff Merge back to main trunk Guido van Rossum <guido@python.org> parents: 1418 diff changeset	60 #define dprintf(args)
b724599401ff Merge back to main trunk Guido van Rossum <guido@python.org> parents: 1418 diff changeset	61 #define d2printf(args)
b724599401ff Merge back to main trunk Guido van Rossum <guido@python.org> parents: 1418 diff changeset	62 #endif
b724599401ff Merge back to main trunk Guido van Rossum <guido@python.org> parents: 1418 diff changeset	63
923 72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	64 static int initialized;
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	65
13689 9db86b27278f Prototype yet another forward declaration. Thomas Wouters <thomas@python.org> parents: 13658 diff changeset	66 static void PyThread__init_thread(void); /* Forward */
1004 5d7142ea01b7 adapted SV module to the new svideo library. Sjoerd Mullender <sjoerd@acm.org> parents: 961 diff changeset	67
13658 f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern' Thomas Wouters <thomas@python.org> parents: 13256 diff changeset	68 void PyThread_init_thread(void)
1004 5d7142ea01b7 adapted SV module to the new svideo library. Sjoerd Mullender <sjoerd@acm.org> parents: 961 diff changeset	69 {
4839 4567e158d20c Rename DEBUG macro to Py_DEBUG Guido van Rossum <guido@python.org> parents: 4596 diff changeset	70 #ifdef Py_DEBUG
1418 b1bb74a2b593 Port to Solaris 2.3. Sjoerd Mullender <sjoerd@acm.org> parents: 1350 diff changeset	71 char *p = getenv("THREADDEBUG");
b1bb74a2b593 Port to Solaris 2.3. Sjoerd Mullender <sjoerd@acm.org> parents: 1350 diff changeset	72
b1bb74a2b593 Port to Solaris 2.3. Sjoerd Mullender <sjoerd@acm.org> parents: 1350 diff changeset	73 if (p) {
b1bb74a2b593 Port to Solaris 2.3. Sjoerd Mullender <sjoerd@acm.org> parents: 1350 diff changeset	74 if (*p)
b1bb74a2b593 Port to Solaris 2.3. Sjoerd Mullender <sjoerd@acm.org> parents: 1350 diff changeset	75 thread_debug = atoi(p);
b1bb74a2b593 Port to Solaris 2.3. Sjoerd Mullender <sjoerd@acm.org> parents: 1350 diff changeset	76 else
b1bb74a2b593 Port to Solaris 2.3. Sjoerd Mullender <sjoerd@acm.org> parents: 1350 diff changeset	77 thread_debug = 1;
b1bb74a2b593 Port to Solaris 2.3. Sjoerd Mullender <sjoerd@acm.org> parents: 1350 diff changeset	78 }
4839 4567e158d20c Rename DEBUG macro to Py_DEBUG Guido van Rossum <guido@python.org> parents: 4596 diff changeset	79 #endif /* Py_DEBUG */
1004 5d7142ea01b7 adapted SV module to the new svideo library. Sjoerd Mullender <sjoerd@acm.org> parents: 961 diff changeset	80 if (initialized)
5d7142ea01b7 adapted SV module to the new svideo library. Sjoerd Mullender <sjoerd@acm.org> parents: 961 diff changeset	81 return;
5d7142ea01b7 adapted SV module to the new svideo library. Sjoerd Mullender <sjoerd@acm.org> parents: 961 diff changeset	82 initialized = 1;
9679 877d23bd5bdc Thanks to Chris Herborth, the thread primitives now have proper Py* Guido van Rossum <guido@python.org> parents: 9589 diff changeset	83 dprintf(("PyThread_init_thread called\n"));
877d23bd5bdc Thanks to Chris Herborth, the thread primitives now have proper Py* Guido van Rossum <guido@python.org> parents: 9589 diff changeset	84 PyThread__init_thread();
923 72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	85 }
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	86
1848 b724599401ff Merge back to main trunk Guido van Rossum <guido@python.org> parents: 1418 diff changeset	87 #ifdef SGI_THREADS
b724599401ff Merge back to main trunk Guido van Rossum <guido@python.org> parents: 1418 diff changeset	88 #include "thread_sgi.h"
1418 b1bb74a2b593 Port to Solaris 2.3. Sjoerd Mullender <sjoerd@acm.org> parents: 1350 diff changeset	89 #endif
961 a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	90
1848 b724599401ff Merge back to main trunk Guido van Rossum <guido@python.org> parents: 1418 diff changeset	91 #ifdef SOLARIS_THREADS
b724599401ff Merge back to main trunk Guido van Rossum <guido@python.org> parents: 1418 diff changeset	92 #include "thread_solaris.h"
923 72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	93 #endif
1848 b724599401ff Merge back to main trunk Guido van Rossum <guido@python.org> parents: 1418 diff changeset	94
b724599401ff Merge back to main trunk Guido van Rossum <guido@python.org> parents: 1418 diff changeset	95 #ifdef SUN_LWP
b724599401ff Merge back to main trunk Guido van Rossum <guido@python.org> parents: 1418 diff changeset	96 #include "thread_lwp.h"
923 72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	97 #endif
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	98
14674 756c8c6535fe Make better use of GNU Pth -- patch by Andy Dustman. Guido van Rossum <guido@python.org> parents: 14375 diff changeset	99 #ifdef HAVE_PTH
12611 b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: 12475 diff changeset	100 #include "thread_pth.h"
14674 756c8c6535fe Make better use of GNU Pth -- patch by Andy Dustman. Guido van Rossum <guido@python.org> parents: 14375 diff changeset	101 #endif
756c8c6535fe Make better use of GNU Pth -- patch by Andy Dustman. Guido van Rossum <guido@python.org> parents: 14375 diff changeset	102
1848 b724599401ff Merge back to main trunk Guido van Rossum <guido@python.org> parents: 1418 diff changeset	103 #ifdef _POSIX_THREADS
b724599401ff Merge back to main trunk Guido van Rossum <guido@python.org> parents: 1418 diff changeset	104 #include "thread_pthread.h"
923 72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	105 #endif
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	106
1848 b724599401ff Merge back to main trunk Guido van Rossum <guido@python.org> parents: 1418 diff changeset	107 #ifdef C_THREADS
b724599401ff Merge back to main trunk Guido van Rossum <guido@python.org> parents: 1418 diff changeset	108 #include "thread_cthread.h"
b724599401ff Merge back to main trunk Guido van Rossum <guido@python.org> parents: 1418 diff changeset	109 #endif
923 72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	110
2152 1a52351a00b2 nt thread support Guido van Rossum <guido@python.org> parents: 2062 diff changeset	111 #ifdef NT_THREADS
1a52351a00b2 nt thread support Guido van Rossum <guido@python.org> parents: 2062 diff changeset	112 #include "thread_nt.h"
1a52351a00b2 nt thread support Guido van Rossum <guido@python.org> parents: 2062 diff changeset	113 #endif
1a52351a00b2 nt thread support Guido van Rossum <guido@python.org> parents: 2062 diff changeset	114
6626 5e31d381fa47 os2 patch by Jeff Rush Guido van Rossum <guido@python.org> parents: 5599 diff changeset	115 #ifdef OS2_THREADS
5e31d381fa47 os2 patch by Jeff Rush Guido van Rossum <guido@python.org> parents: 5599 diff changeset	116 #include "thread_os2.h"
5e31d381fa47 os2 patch by Jeff Rush Guido van Rossum <guido@python.org> parents: 5599 diff changeset	117 #endif
5e31d381fa47 os2 patch by Jeff Rush Guido van Rossum <guido@python.org> parents: 5599 diff changeset	118
8822 bd47ee068b83 Changes for BeOS, QNX and long long, by Chris Herborth. Guido van Rossum <guido@python.org> parents: 6626 diff changeset	119 #ifdef BEOS_THREADS
bd47ee068b83 Changes for BeOS, QNX and long long, by Chris Herborth. Guido van Rossum <guido@python.org> parents: 6626 diff changeset	120 #include "thread_beos.h"
bd47ee068b83 Changes for BeOS, QNX and long long, by Chris Herborth. Guido van Rossum <guido@python.org> parents: 6626 diff changeset	121 #endif
bd47ee068b83 Changes for BeOS, QNX and long long, by Chris Herborth. Guido van Rossum <guido@python.org> parents: 6626 diff changeset	122
10530 d834ecdf8c26 Changes by Mark Hammond for Windows CE. Mostly of the form Guido van Rossum <guido@python.org> parents: 9679 diff changeset	123 #ifdef WINCE_THREADS
d834ecdf8c26 Changes by Mark Hammond for Windows CE. Mostly of the form Guido van Rossum <guido@python.org> parents: 9679 diff changeset	124 #include "thread_wince.h"
d834ecdf8c26 Changes by Mark Hammond for Windows CE. Mostly of the form Guido van Rossum <guido@python.org> parents: 9679 diff changeset	125 #endif
d834ecdf8c26 Changes by Mark Hammond for Windows CE. Mostly of the form Guido van Rossum <guido@python.org> parents: 9679 diff changeset	126
22206 b898c0feb754 Patch #504224: add plan9 threads include to thread.c. Martin v. Löwis <martin@v.loewis.de> parents: 21712 diff changeset	127 #ifdef PLAN9_THREADS
b898c0feb754 Patch #504224: add plan9 threads include to thread.c. Martin v. Löwis <martin@v.loewis.de> parents: 21712 diff changeset	128 #include "thread_plan9.h"
b898c0feb754 Patch #504224: add plan9 threads include to thread.c. Martin v. Löwis <martin@v.loewis.de> parents: 21712 diff changeset	129 #endif
b898c0feb754 Patch #504224: add plan9 threads include to thread.c. Martin v. Löwis <martin@v.loewis.de> parents: 21712 diff changeset	130
23777 bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: 22509 diff changeset	131 #ifdef ATHEOS_THREADS
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: 22509 diff changeset	132 #include "thread_atheos.h"
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: 22509 diff changeset	133 #endif
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: 22509 diff changeset	134
961 a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	135 /*
1848 b724599401ff Merge back to main trunk Guido van Rossum <guido@python.org> parents: 1418 diff changeset	136 #ifdef FOOBAR_THREADS
b724599401ff Merge back to main trunk Guido van Rossum <guido@python.org> parents: 1418 diff changeset	137 #include "thread_foobar.h"
923 72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	138 #endif
1848 b724599401ff Merge back to main trunk Guido van Rossum <guido@python.org> parents: 1418 diff changeset	139 */
28694 a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	140
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	141 #ifndef Py_HAVE_NATIVE_TLS
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	142 /* If the platform has not supplied a platform specific
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	143 TLS implementation, provide our own.
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	144
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	145 This code stolen from "thread_sgi.h", where it was the only
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	146 implementation of an existing Python TLS API.
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	147 */
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	148 /*
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	149 * Per-thread data ("key") support.
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	150 */
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	151
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	152 struct key {
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	153 struct key *next;
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	154 long id;
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	155 int key;
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	156 void *value;
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	157 };
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	158
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	159 static struct key *keyhead = NULL;
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	160 static int nkeys = 0;
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	161 static PyThread_type_lock keymutex = NULL;
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	162
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	163 static struct key find_key(int key, void value)
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	164 {
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	165 struct key *p;
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	166 long id = PyThread_get_thread_ident();
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	167 for (p = keyhead; p != NULL; p = p->next) {
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	168 if (p->id == id && p->key == key)
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	169 return p;
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	170 }
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	171 if (value == NULL)
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	172 return NULL;
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	173 p = (struct key *)malloc(sizeof(struct key));
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	174 if (p != NULL) {
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	175 p->id = id;
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	176 p->key = key;
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	177 p->value = value;
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	178 PyThread_acquire_lock(keymutex, 1);
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	179 p->next = keyhead;
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	180 keyhead = p;
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	181 PyThread_release_lock(keymutex);
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	182 }
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	183 return p;
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	184 }
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	185
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	186 int PyThread_create_key(void)
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	187 {
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	188 if (keymutex == NULL)
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	189 keymutex = PyThread_allocate_lock();
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	190 return ++nkeys;
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	191 }
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	192
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	193 void PyThread_delete_key(int key)
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	194 {
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	195 struct key p, *q;
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	196 PyThread_acquire_lock(keymutex, 1);
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	197 q = &keyhead;
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	198 while ((p = *q) != NULL) {
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	199 if (p->key == key) {
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	200 *q = p->next;
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	201 free((void *)p);
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	202 /* NB This does not free p->value! */
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	203 }
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	204 else
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	205 q = &p->next;
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	206 }
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	207 PyThread_release_lock(keymutex);
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	208 }
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	209
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	210 int PyThread_set_key_value(int key, void *value)
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	211 {
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	212 struct key *p = find_key(key, value);
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	213 if (p == NULL)
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	214 return -1;
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	215 else
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	216 return 0;
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	217 }
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	218
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	219 void *PyThread_get_key_value(int key)
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	220 {
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	221 struct key *p = find_key(key, NULL);
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	222 if (p == NULL)
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	223 return NULL;
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	224 else
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	225 return p->value;
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	226 }
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	227
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	228 void PyThread_delete_key_value(int key)
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	229 {
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	230 long id = PyThread_get_thread_ident();
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	231 struct key p, *q;
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	232 PyThread_acquire_lock(keymutex, 1);
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	233 q = &keyhead;
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	234 while ((p = *q) != NULL) {
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	235 if (p->key == key && p->id == id) {
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	236 *q = p->next;
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	237 free((void *)p);
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	238 /* NB This does not free p->value! */
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	239 break;
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	240 }
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	241 else
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	242 q = &p->next;
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	243 }
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	244 PyThread_release_lock(keymutex);
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	245 }
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	246
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 24315 diff changeset	247 #endif /* Py_HAVE_NATIVE_TLS */

Mercurial > cpython-lru_cache-weakref

annotate Python/thread.c @ 29877:72cbc41ccc2f legacy-trunk