cpython-lru_cache-weakref: Python/thread

annotate Python/thread_pth.h @ 13658:f79434ee41fa legacy-trunk

Mass ANSIfication of function definitions. Doesn't cover all 'extern' declarations yet, those come later.

author	Thomas Wouters <thomas@python.org>
date	Sat, 22 Jul 2000 18:47:25 +0000
parents	87ee82e5c56d
children	6f6f965c5e2d

rev	line source
12611 b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	1 /***********************************************************
13255 916fb024ce94 Change copyright notice. Guido van Rossum <guido@python.org> parents: 13210 diff changeset	2 Copyright (c) 2000, BeOpen.com.
916fb024ce94 Change copyright notice. Guido van Rossum <guido@python.org> parents: 13210 diff changeset	3 Copyright (c) 1995-2000, Corporation for National Research Initiatives.
916fb024ce94 Change copyright notice. Guido van Rossum <guido@python.org> parents: 13210 diff changeset	4 Copyright (c) 1990-1995, Stichting Mathematisch Centrum.
916fb024ce94 Change copyright notice. Guido van Rossum <guido@python.org> parents: 13210 diff changeset	5 All rights reserved.
12611 b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	6
13255 916fb024ce94 Change copyright notice. Guido van Rossum <guido@python.org> parents: 13210 diff changeset	7 See the file "Misc/COPYRIGHT" for information on usage and
916fb024ce94 Change copyright notice. Guido van Rossum <guido@python.org> parents: 13210 diff changeset	8 redistribution of this file, and for a DISCLAIMER OF ALL WARRANTIES.
12611 b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	9 ******************************************************************/
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	10
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	11 /* GNU pth threads interface
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	12 http://www.gnu.org/software/pth
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	13 2000-05-03 Andy Dustman <andy@dustman.net>
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	14
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	15 Adapted from Posix threads interface
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	16 12 May 1997 -- david arnold <davida@pobox.com>
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	17 */
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	18
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	19 #include <stdlib.h>
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	20 #include <string.h>
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	21 #include <pth.h>
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	22
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	23 /* A pth mutex isn't sufficient to model the Python lock type
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	24 * because pth mutexes can be acquired multiple times by the
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	25 * same thread.
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	26 *
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	27 * The pth_lock struct implements a Python lock as a "locked?" bit
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	28 * and a <condition, mutex> pair. In general, if the bit can be acquired
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	29 * instantly, it is, else the pair is used to block the thread until the
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	30 * bit is cleared.
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	31 */
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	32
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	33 typedef struct {
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	34 char locked; /* 0=unlocked, 1=locked */
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	35 /* a <cond, mutex> pair to handle an acquire of a locked lock */
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	36 pth_cond_t lock_released;
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	37 pth_mutex_t mut;
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	38 } pth_lock;
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	39
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	40 #define CHECK_STATUS(name) if (status == -1) { printf("%d ", status); perror(name); error = 1; }
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	41
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	42 /*
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	43 * Initialization.
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	44 */
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	45
13658 f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern' Thomas Wouters <thomas@python.org> parents: 13256 diff changeset	46 static void PyThread__init_thread(void)
12611 b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	47 {
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	48 pth_init();
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	49 }
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	50
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	51 /*
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	52 * Thread support.
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	53 */
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	54
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	55
13658 f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern' Thomas Wouters <thomas@python.org> parents: 13256 diff changeset	56 int PyThread_start_new_thread(void (func)(void ), void *arg)
12611 b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	57 {
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	58 pth_t th;
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	59 int success;
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	60 dprintf(("PyThread_start_new_thread called\n"));
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	61 if (!initialized)
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	62 PyThread_init_thread();
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	63
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	64 th = pth_spawn(PTH_ATTR_DEFAULT,
13658 f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern' Thomas Wouters <thomas@python.org> parents: 13256 diff changeset	65 (void* ()(void ))func,
12611 b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	66 (void *)arg
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	67 );
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	68
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	69 return th == NULL ? 0 : 1;
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	70 }
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	71
13658 f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern' Thomas Wouters <thomas@python.org> parents: 13256 diff changeset	72 long PyThread_get_thread_ident(void)
12611 b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	73 {
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	74 volatile pth_t threadid;
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	75 if (!initialized)
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	76 PyThread_init_thread();
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	77 /* Jump through some hoops for Alpha OSF/1 */
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	78 threadid = pth_self();
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	79 return (long) (long ) &threadid;
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	80 }
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	81
13658 f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern' Thomas Wouters <thomas@python.org> parents: 13256 diff changeset	82 static void do_PyThread_exit_thread(int no_cleanup)
12611 b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	83 {
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	84 dprintf(("PyThread_exit_thread called\n"));
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	85 if (!initialized) {
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	86 if (no_cleanup)
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	87 _exit(0);
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	88 else
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	89 exit(0);
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	90 }
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	91 }
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	92
13658 f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern' Thomas Wouters <thomas@python.org> parents: 13256 diff changeset	93 void PyThread_exit_thread(void)
12611 b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	94 {
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	95 do_PyThread_exit_thread(0);
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	96 }
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	97
13658 f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern' Thomas Wouters <thomas@python.org> parents: 13256 diff changeset	98 void PyThread__exit_thread(void)
12611 b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	99 {
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	100 do_PyThread_exit_thread(1);
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	101 }
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	102
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	103 #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	104 static void do_PyThread_exit_prog(int status, int no_cleanup)
12611 b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	105 {
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	106 dprintf(("PyThread_exit_prog(%d) called\n", status));
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	107 if (!initialized)
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	108 if (no_cleanup)
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	109 _exit(status);
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	110 else
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	111 exit(status);
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	112 }
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	113
13658 f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern' Thomas Wouters <thomas@python.org> parents: 13256 diff changeset	114 void PyThread_exit_prog(int status)
12611 b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	115 {
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	116 do_PyThread_exit_prog(status, 0);
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	117 }
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	118
13658 f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern' Thomas Wouters <thomas@python.org> parents: 13256 diff changeset	119 void PyThread__exit_prog(int status)
12611 b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	120 {
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	121 do_PyThread_exit_prog(status, 1);
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	122 }
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	123 #endif /* NO_EXIT_PROG */
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	124
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	125 /*
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	126 * Lock support.
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	127 */
13658 f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern' Thomas Wouters <thomas@python.org> parents: 13256 diff changeset	128 PyThread_type_lock PyThread_allocate_lock(void)
12611 b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	129 {
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	130 pth_lock *lock;
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	131 int status, error = 0;
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	132
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	133 dprintf(("PyThread_allocate_lock called\n"));
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	134 if (!initialized)
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	135 PyThread_init_thread();
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	136
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	137 lock = (pth_lock *) malloc(sizeof(pth_lock));
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	138 memset((void *)lock, '\0', sizeof(pth_lock));
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	139 if (lock) {
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	140 lock->locked = 0;
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	141 status = pth_mutex_init(&lock->mut);
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	142 CHECK_STATUS("pth_mutex_init");
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	143 status = pth_cond_init(&lock->lock_released);
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	144 CHECK_STATUS("pth_cond_init");
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	145 if (error) {
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	146 free((void *)lock);
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	147 lock = NULL;
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	148 }
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	149 }
13210 ff243b0f16ee Trent Mick <trentm@activestate.com>: Fred Drake <fdrake@acm.org> parents: 12611 diff changeset	150 dprintf(("PyThread_allocate_lock() -> %p\n", lock));
12611 b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	151 return (PyThread_type_lock) lock;
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	152 }
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	153
13658 f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern' Thomas Wouters <thomas@python.org> parents: 13256 diff changeset	154 void PyThread_free_lock(PyThread_type_lock lock)
12611 b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	155 {
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	156 pth_lock thelock = (pth_lock )lock;
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	157 int status, error = 0;
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	158
13210 ff243b0f16ee Trent Mick <trentm@activestate.com>: Fred Drake <fdrake@acm.org> parents: 12611 diff changeset	159 dprintf(("PyThread_free_lock(%p) called\n", lock));
12611 b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	160
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	161 free((void *)thelock);
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	162 }
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	163
13658 f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern' Thomas Wouters <thomas@python.org> parents: 13256 diff changeset	164 int PyThread_acquire_lock(PyThread_type_lock lock, int waitflag)
12611 b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	165 {
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	166 int success;
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	167 pth_lock thelock = (pth_lock )lock;
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	168 int status, error = 0;
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	169
13210 ff243b0f16ee Trent Mick <trentm@activestate.com>: Fred Drake <fdrake@acm.org> parents: 12611 diff changeset	170 dprintf(("PyThread_acquire_lock(%p, %d) called\n", lock, waitflag));
12611 b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	171
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	172 status = pth_mutex_acquire(&thelock->mut, !waitflag, NULL);
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	173 CHECK_STATUS("pth_mutex_acquire[1]");
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	174 success = thelock->locked == 0;
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	175 if (success) thelock->locked = 1;
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	176 status = pth_mutex_release( &thelock->mut );
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	177 CHECK_STATUS("pth_mutex_release[1]");
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	178
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	179 if ( !success && waitflag ) {
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	180 /* continue trying until we get the lock */
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	181
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	182 /* mut must be locked by me -- part of the condition
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	183 * protocol */
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	184 status = pth_mutex_acquire( &thelock->mut, !waitflag, NULL );
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	185 CHECK_STATUS("pth_mutex_acquire[2]");
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	186 while ( thelock->locked ) {
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	187 status = pth_cond_await(&thelock->lock_released,
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	188 &thelock->mut, NULL);
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	189 CHECK_STATUS("pth_cond_await");
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	190 }
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	191 thelock->locked = 1;
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	192 status = pth_mutex_release( &thelock->mut );
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	193 CHECK_STATUS("pth_mutex_release[2]");
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	194 success = 1;
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	195 }
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	196 if (error) success = 0;
13210 ff243b0f16ee Trent Mick <trentm@activestate.com>: Fred Drake <fdrake@acm.org> parents: 12611 diff changeset	197 dprintf(("PyThread_acquire_lock(%p, %d) -> %d\n", lock, waitflag, success));
12611 b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	198 return success;
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	199 }
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	200
13658 f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern' Thomas Wouters <thomas@python.org> parents: 13256 diff changeset	201 void PyThread_release_lock(PyThread_type_lock lock)
12611 b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	202 {
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	203 pth_lock thelock = (pth_lock )lock;
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	204 int status, error = 0;
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	205
13210 ff243b0f16ee Trent Mick <trentm@activestate.com>: Fred Drake <fdrake@acm.org> parents: 12611 diff changeset	206 dprintf(("PyThread_release_lock(%p) called\n", lock));
12611 b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	207
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	208 status = pth_mutex_acquire( &thelock->mut, 0, NULL );
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	209 CHECK_STATUS("pth_mutex_acquire[3]");
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	210
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	211 thelock->locked = 0;
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	212
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	213 status = pth_mutex_release( &thelock->mut );
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	214 CHECK_STATUS("pth_mutex_release[3]");
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	215
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	216 /* wake up someone (anyone, if any) waiting on the lock */
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	217 status = pth_cond_notify( &thelock->lock_released, 0 );
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	218 CHECK_STATUS("pth_cond_notify");
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	219 }
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	220
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	221 /*
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	222 * Semaphore support.
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	223 */
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	224
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	225 struct semaphore {
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	226 pth_mutex_t mutex;
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	227 pth_cond_t cond;
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	228 int value;
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	229 };
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	230
13658 f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern' Thomas Wouters <thomas@python.org> parents: 13256 diff changeset	231 PyThread_type_sema PyThread_allocate_sema(int value)
12611 b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	232 {
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	233 struct semaphore *sema;
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	234 int status, error = 0;
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	235
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	236 dprintf(("PyThread_allocate_sema called\n"));
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	237 if (!initialized)
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	238 PyThread_init_thread();
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	239
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	240 sema = (struct semaphore *) malloc(sizeof(struct semaphore));
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	241 if (sema != NULL) {
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	242 sema->value = value;
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	243 status = pth_mutex_init(&sema->mutex);
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	244 CHECK_STATUS("pth_mutex_init");
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	245 status = pth_cond_init(&sema->cond);
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	246 CHECK_STATUS("pth_mutex_init");
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	247 if (error) {
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	248 free((void *) sema);
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	249 sema = NULL;
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	250 }
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	251 }
13210 ff243b0f16ee Trent Mick <trentm@activestate.com>: Fred Drake <fdrake@acm.org> parents: 12611 diff changeset	252 dprintf(("PyThread_allocate_sema() -> %p\n", sema));
12611 b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	253 return (PyThread_type_sema) sema;
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	254 }
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	255
13658 f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern' Thomas Wouters <thomas@python.org> parents: 13256 diff changeset	256 void PyThread_free_sema(PyThread_type_sema sema)
12611 b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	257 {
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	258 int status, error = 0;
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	259 struct semaphore thesema = (struct semaphore ) sema;
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	260
13210 ff243b0f16ee Trent Mick <trentm@activestate.com>: Fred Drake <fdrake@acm.org> parents: 12611 diff changeset	261 dprintf(("PyThread_free_sema(%p) called\n", sema));
12611 b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	262 free((void *) thesema);
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	263 }
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	264
13658 f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern' Thomas Wouters <thomas@python.org> parents: 13256 diff changeset	265 int PyThread_down_sema(PyThread_type_sema sema, int waitflag)
12611 b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	266 {
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	267 int status, error = 0, success;
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	268 struct semaphore thesema = (struct semaphore ) sema;
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	269
13210 ff243b0f16ee Trent Mick <trentm@activestate.com>: Fred Drake <fdrake@acm.org> parents: 12611 diff changeset	270 dprintf(("PyThread_down_sema(%p, %d) called\n", sema, waitflag));
12611 b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	271 status = pth_mutex_acquire(&thesema->mutex, !waitflag, NULL);
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	272 CHECK_STATUS("pth_mutex_acquire");
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	273 if (waitflag) {
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	274 while (!error && thesema->value <= 0) {
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	275 status = pth_cond_await(&thesema->cond,
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	276 &thesema->mutex, NULL);
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	277 CHECK_STATUS("pth_cond_await");
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	278 }
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	279 }
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	280 if (error)
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	281 success = 0;
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	282 else if (thesema->value > 0) {
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	283 thesema->value--;
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	284 success = 1;
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	285 }
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	286 else
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	287 success = 0;
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	288 status = pth_mutex_release(&thesema->mutex);
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	289 CHECK_STATUS("pth_mutex_release");
13210 ff243b0f16ee Trent Mick <trentm@activestate.com>: Fred Drake <fdrake@acm.org> parents: 12611 diff changeset	290 dprintf(("PyThread_down_sema(%p) return\n", sema));
12611 b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	291 return success;
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	292 }
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	293
13658 f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern' Thomas Wouters <thomas@python.org> parents: 13256 diff changeset	294 void PyThread_up_sema(PyThread_type_sema sema)
12611 b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	295 {
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	296 int status, error = 0;
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	297 struct semaphore thesema = (struct semaphore ) sema;
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	298
13210 ff243b0f16ee Trent Mick <trentm@activestate.com>: Fred Drake <fdrake@acm.org> parents: 12611 diff changeset	299 dprintf(("PyThread_up_sema(%p)\n", sema));
12611 b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	300 status = pth_mutex_acquire(&thesema->mutex, 0, NULL);
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	301 CHECK_STATUS("pth_mutex_acquire");
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	302 thesema->value++;
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	303 status = pth_cond_notify(&thesema->cond, 1);
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	304 CHECK_STATUS("pth_cond_notify");
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	305 status = pth_mutex_release(&thesema->mutex);
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	306 CHECK_STATUS("pth_mutex_release");
b320cf3a98b9 Andy Dustman: add GNU pth user-space thread support. Guido van Rossum <guido@python.org> parents: diff changeset	307 }

Mercurial > cpython-lru_cache-weakref

annotate Python/thread_pth.h @ 13658:f79434ee41fa legacy-trunk