cpython-lru_cache-weakref: Python/thread

annotate Python/thread_pthread.h @ 3964:fcfec6a810ba legacy-trunk

Added casts from unsigned char to char when calling rds_object() on frozen code.

author	Guido van Rossum <guido@python.org>
date	Thu, 08 Aug 1996 18:52:59 +0000
parents	07164d30429d
children	9c05ff6fb0a4

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 /***********************************************************
2062 d0d0a69b5ca3 Added 1995 to copyright message. Guido van Rossum <guido@python.org> parents: 1651 diff changeset	2 Copyright 1991-1995 by Stichting Mathematisch Centrum, Amsterdam,
d0d0a69b5ca3 Added 1995 to copyright message. Guido van Rossum <guido@python.org> parents: 1651 diff changeset	3 The Netherlands.
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	4
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	5 All Rights Reserved
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	6
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	7 Permission to use, copy, modify, and distribute this software and its
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	8 documentation for any purpose and without fee is hereby granted,
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	9 provided that the above copyright notice appear in all copies and that
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	10 both that copyright notice and this permission notice appear in
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	11 supporting documentation, and that the names of Stichting Mathematisch
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	12 Centrum or CWI not be used in advertising or publicity pertaining to
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	13 distribution of the software without specific, written prior permission.
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	14
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	15 STICHTING MATHEMATISCH CENTRUM DISCLAIMS ALL WARRANTIES WITH REGARD TO
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	16 THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	17 FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH CENTRUM BE LIABLE
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	18 FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	19 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	20 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	21 OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	22
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	23 ******************************************************************/
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	24
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	25 /* Posix threads interface */
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	26
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	27 #include <stdlib.h>
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	28 #include <pthread.h>
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	29
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	30 #define pthread_attr_default ((pthread_attr_t *)0)
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	31 #define pthread_mutexattr_default ((pthread_mutexattr_t *)0)
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	32 #define pthread_condattr_default ((pthread_condattr_t *)0)
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	33
1629 4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	34 /* 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	35 * 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	36 * following are undefined:
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	37 * -> 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	38 * -> 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	39 * 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	40 * 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	41 * 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	42 *
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	43 * 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	44 * 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	45 * 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	46 * 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	47 */
1629 4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	48
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	49 typedef struct {
1629 4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	50 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	51 /* 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	52 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	53 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	54 } pthread_lock;
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	55
1629 4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	56 #define CHECK_STATUS(name) if (status < 0) { perror(name); error=1; }
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	57
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	58 /*
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	59 * Initialization.
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	60 */
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	61 static void _init_thread _P0()
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	62 {
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	63 }
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	64
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	65 /*
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	66 * Thread support.
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	67 */
1629 4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	68
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	69
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	70 int start_new_thread _P2(func, void (func) _P((void )), arg, void *arg)
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	71 {
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	72 pthread_t th;
1651 7e5f97bab1e6 ceval.c: dict of local mapping is now a tuple Guido van Rossum <guido@python.org> parents: 1629 diff changeset	73 int success;
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	74 dprintf(("start_new_thread called\n"));
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	75 if (!initialized)
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	76 init_thread();
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	77 success = pthread_create(&th, pthread_attr_default,
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	78 (void* () _P((void )))func, arg);
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	79 return success < 0 ? 0 : 1;
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	80 }
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	81
1651 7e5f97bab1e6 ceval.c: dict of local mapping is now a tuple Guido van Rossum <guido@python.org> parents: 1629 diff changeset	82 long get_thread_ident _P0()
7e5f97bab1e6 ceval.c: dict of local mapping is now a tuple Guido van Rossum <guido@python.org> parents: 1629 diff changeset	83 {
2097 e4588404fdff Alpha OSF/1 fix Guido van Rossum <guido@python.org> parents: 2062 diff changeset	84 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	85 if (!initialized)
7e5f97bab1e6 ceval.c: dict of local mapping is now a tuple Guido van Rossum <guido@python.org> parents: 1629 diff changeset	86 init_thread();
2097 e4588404fdff Alpha OSF/1 fix Guido van Rossum <guido@python.org> parents: 2062 diff changeset	87 /* Jump through some hoops for Alpha OSF/1 */
e4588404fdff Alpha OSF/1 fix Guido van Rossum <guido@python.org> parents: 2062 diff changeset	88 threadid = pthread_self();
e4588404fdff Alpha OSF/1 fix Guido van Rossum <guido@python.org> parents: 2062 diff changeset	89 return (long) (long ) &threadid;
1651 7e5f97bab1e6 ceval.c: dict of local mapping is now a tuple Guido van Rossum <guido@python.org> parents: 1629 diff changeset	90 }
7e5f97bab1e6 ceval.c: dict of local mapping is now a tuple Guido van Rossum <guido@python.org> parents: 1629 diff changeset	91
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	92 static void do_exit_thread _P1(no_cleanup, int no_cleanup)
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	93 {
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	94 dprintf(("exit_thread called\n"));
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	95 if (!initialized)
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	96 if (no_cleanup)
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	97 _exit(0);
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	98 else
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	99 exit(0);
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	100 }
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	101
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	102 void exit_thread _P0()
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	103 {
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	104 do_exit_thread(0);
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	105 }
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	106
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	107 void _exit_thread _P0()
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	108 {
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	109 do_exit_thread(1);
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	110 }
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	111
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	112 #ifndef NO_EXIT_PROG
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	113 static void do_exit_prog _P2(status, int status, no_cleanup, int no_cleanup)
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	114 {
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	115 dprintf(("exit_prog(%d) called\n", status));
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	116 if (!initialized)
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	117 if (no_cleanup)
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	118 _exit(status);
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	119 else
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	120 exit(status);
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	121 }
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	122
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	123 void exit_prog _P1(status, int status)
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	124 {
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	125 do_exit_prog(status, 0);
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	126 }
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	127
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	128 void _exit_prog _P1(status, int status)
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	129 {
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	130 do_exit_prog(status, 1);
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	131 }
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	132 #endif /* NO_EXIT_PROG */
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	133
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	134 /*
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	135 * Lock support.
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	136 */
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	137 type_lock allocate_lock _P0()
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	138 {
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	139 pthread_lock *lock;
1629 4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	140 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	141
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	142 dprintf(("allocate_lock called\n"));
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	143 if (!initialized)
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	144 init_thread();
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	145
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	146 lock = (pthread_lock *) malloc(sizeof(pthread_lock));
1629 4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	147 if (lock) {
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	148 lock->locked = 0;
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	149
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	150 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	151 pthread_mutexattr_default);
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	152 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	153
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	154 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	155 pthread_condattr_default);
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	156 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	157
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	158 if (error) {
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	159 free((void *)lock);
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	160 lock = 0;
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	161 }
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	162 }
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	163
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	164 dprintf(("allocate_lock() -> %lx\n", (long)lock));
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	165 return (type_lock) lock;
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	166 }
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	167
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	168 void free_lock _P1(lock, type_lock lock)
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	169 {
1629 4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	170 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	171 int status, error = 0;
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	172
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	173 dprintf(("free_lock(%lx) called\n", (long)lock));
1629 4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	174
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	175 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	176 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	177
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	178 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	179 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	180
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	181 free((void *)thelock);
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
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	184 int acquire_lock _P2(lock, type_lock lock, waitflag, int waitflag)
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	185 {
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	186 int success;
1629 4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	187 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	188 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	189
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	190 dprintf(("acquire_lock(%lx, %d) called\n", (long)lock, waitflag));
1629 4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	191
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	192 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	193 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	194 success = thelock->locked == 0;
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	195 if (success) thelock->locked = 1;
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	196 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	197 CHECK_STATUS("pthread_mutex_unlock[1]");
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	198
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	199 if ( !success && waitflag ) {
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	200 /* 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	201
1629 4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	202 /* 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	203 * protocol */
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	204 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	205 CHECK_STATUS("pthread_mutex_lock[2]");
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	206 while ( thelock->locked ) {
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	207 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	208 &thelock->mut);
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	209 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	210 }
1629 4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	211 thelock->locked = 1;
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	212 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	213 CHECK_STATUS("pthread_mutex_unlock[2]");
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	214 success = 1;
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	215 }
1629 4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	216 if (error) success = 0;
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	217 dprintf(("acquire_lock(%lx, %d) -> %d\n", (long)lock, waitflag, success));
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	218 return success;
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	219 }
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	220
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	221 void release_lock _P1(lock, type_lock lock)
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	222 {
1629 4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	223 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	224 int status, error = 0;
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	225
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	226 dprintf(("release_lock(%lx) called\n", (long)lock));
1629 4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	227
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	228 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	229 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	230
1629 4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	231 thelock->locked = 0;
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	232
1629 4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	233 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	234 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	235
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	236 /* 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	237 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	238 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	239 }
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	240
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	241 /*
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	242 * Semaphore support.
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	243 */
1629 4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	244 /* NOTE: 100% non-functional at this time - tim */
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	245
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	246 type_sema allocate_sema _P1(value, int value)
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	247 {
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	248 char *sema = 0;
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	249 dprintf(("allocate_sema called\n"));
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	250 if (!initialized)
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	251 init_thread();
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	252
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	253 dprintf(("allocate_sema() -> %lx\n", (long) sema));
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	254 return (type_sema) sema;
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	255 }
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	256
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	257 void free_sema _P1(sema, type_sema sema)
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	258 {
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	259 dprintf(("free_sema(%lx) called\n", (long) sema));
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	260 }
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 void down_sema _P1(sema, type_sema sema)
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	263 {
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	264 dprintf(("down_sema(%lx) called\n", (long) sema));
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	265 dprintf(("down_sema(%lx) return\n", (long) sema));
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	266 }
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	267
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	268 void up_sema _P1(sema, type_sema sema)
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	269 {
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	270 dprintf(("up_sema(%lx)\n", (long) sema));
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	271 }

Mercurial > cpython-lru_cache-weakref

annotate Python/thread_pthread.h @ 3964:fcfec6a810ba legacy-trunk