cpython-lru_cache-weakref: Python/thread

annotate Python/thread_lwp.h @ 5758:bfe9ba74c19e legacy-trunk

Fix problem discovered by Greg McFarlane: when an imported module replaces its own entry in sys.module, reference count errors ensue; even if there is no reference count problem, it would be preferable for the import to yield the new thing in sys.modules anyway (if only because that's what later imports will yield). This opens the road to an official hack to implement a __getattr__ like feature for modules: stick an instance in sys.modules[__name__].

author	Guido van Rossum <guido@python.org>
date	Thu, 10 Jul 1997 18:00:45 +0000
parents	65d2d8e67da3
children	877d23bd5bdc

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
4503 65d2d8e67da3 New permission notice, includes CNRI. Guido van Rossum <guido@python.org> parents: 4371 diff changeset	7 Permission to use, copy, modify, and distribute this software and its
65d2d8e67da3 New permission notice, includes CNRI. Guido van Rossum <guido@python.org> parents: 4371 diff changeset	8 documentation for any purpose and without fee is hereby granted,
1628 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
4503 65d2d8e67da3 New permission notice, includes CNRI. Guido van Rossum <guido@python.org> parents: 4371 diff changeset	10 both that copyright notice and this permission notice appear in
1628 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
4503 65d2d8e67da3 New permission notice, includes CNRI. Guido van Rossum <guido@python.org> parents: 4371 diff changeset	12 Centrum or CWI or Corporation for National Research Initiatives or
65d2d8e67da3 New permission notice, includes CNRI. Guido van Rossum <guido@python.org> parents: 4371 diff changeset	13 CNRI not be used in advertising or publicity pertaining to
65d2d8e67da3 New permission notice, includes CNRI. Guido van Rossum <guido@python.org> parents: 4371 diff changeset	14 distribution of the software without specific, written prior
65d2d8e67da3 New permission notice, includes CNRI. Guido van Rossum <guido@python.org> parents: 4371 diff changeset	15 permission.
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	16
4503 65d2d8e67da3 New permission notice, includes CNRI. Guido van Rossum <guido@python.org> parents: 4371 diff changeset	17 While CWI is the initial source for this software, a modified version
65d2d8e67da3 New permission notice, includes CNRI. Guido van Rossum <guido@python.org> parents: 4371 diff changeset	18 is made available by the Corporation for National Research Initiatives
65d2d8e67da3 New permission notice, includes CNRI. Guido van Rossum <guido@python.org> parents: 4371 diff changeset	19 (CNRI) at the Internet address ftp://ftp.python.org.
65d2d8e67da3 New permission notice, includes CNRI. Guido van Rossum <guido@python.org> parents: 4371 diff changeset	20
65d2d8e67da3 New permission notice, includes CNRI. Guido van Rossum <guido@python.org> parents: 4371 diff changeset	21 STICHTING MATHEMATISCH CENTRUM AND CNRI DISCLAIM ALL WARRANTIES WITH
65d2d8e67da3 New permission notice, includes CNRI. Guido van Rossum <guido@python.org> parents: 4371 diff changeset	22 REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF
65d2d8e67da3 New permission notice, includes CNRI. Guido van Rossum <guido@python.org> parents: 4371 diff changeset	23 MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH
65d2d8e67da3 New permission notice, includes CNRI. Guido van Rossum <guido@python.org> parents: 4371 diff changeset	24 CENTRUM OR CNRI BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL
65d2d8e67da3 New permission notice, includes CNRI. Guido van Rossum <guido@python.org> parents: 4371 diff changeset	25 DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
65d2d8e67da3 New permission notice, includes CNRI. Guido van Rossum <guido@python.org> parents: 4371 diff changeset	26 PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
65d2d8e67da3 New permission notice, includes CNRI. Guido van Rossum <guido@python.org> parents: 4371 diff changeset	27 TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
65d2d8e67da3 New permission notice, includes CNRI. Guido van Rossum <guido@python.org> parents: 4371 diff changeset	28 PERFORMANCE OF THIS SOFTWARE.
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	29
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	30 ******************************************************************/
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	31
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	32 #include <stdlib.h>
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	33 #include <lwp/lwp.h>
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	34 #include <lwp/stackdep.h>
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	35
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	36 #define STACKSIZE 1000 /* stacksize for a thread */
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	37 #define NSTACKS 2 /* # stacks to be put in cache initialy */
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	38
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	39 struct lock {
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	40 int lock_locked;
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	41 cv_t lock_condvar;
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	42 mon_t lock_monitor;
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	43 };
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	44
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	45
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	46 /*
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	47 * Initialization.
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	48 */
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	49 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	50 {
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	51 lwp_setstkcache(STACKSIZE, NSTACKS);
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	52 }
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	53
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	54 /*
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	55 * Thread support.
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	56 */
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	57
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 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	60 {
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	61 thread_t tid;
1651 7e5f97bab1e6 ceval.c: dict of local mapping is now a tuple Guido van Rossum <guido@python.org> parents: 1629 diff changeset	62 int success;
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	63 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	64 if (!initialized)
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	65 init_thread();
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	66 success = lwp_create(&tid, func, MINPRIO, 0, lwp_newstk(), 1, arg);
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	67 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	68 }
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	69
1651 7e5f97bab1e6 ceval.c: dict of local mapping is now a tuple Guido van Rossum <guido@python.org> parents: 1629 diff changeset	70 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	71 {
7e5f97bab1e6 ceval.c: dict of local mapping is now a tuple Guido van Rossum <guido@python.org> parents: 1629 diff changeset	72 thread_t tid;
7e5f97bab1e6 ceval.c: dict of local mapping is now a tuple Guido van Rossum <guido@python.org> parents: 1629 diff changeset	73 if (!initialized)
7e5f97bab1e6 ceval.c: dict of local mapping is now a tuple Guido van Rossum <guido@python.org> parents: 1629 diff changeset	74 init_thread();
7e5f97bab1e6 ceval.c: dict of local mapping is now a tuple Guido van Rossum <guido@python.org> parents: 1629 diff changeset	75 if (lwp_self(&tid) < 0)
7e5f97bab1e6 ceval.c: dict of local mapping is now a tuple Guido van Rossum <guido@python.org> parents: 1629 diff changeset	76 return -1;
7e5f97bab1e6 ceval.c: dict of local mapping is now a tuple Guido van Rossum <guido@python.org> parents: 1629 diff changeset	77 return tid.thread_id;
7e5f97bab1e6 ceval.c: dict of local mapping is now a tuple Guido van Rossum <guido@python.org> parents: 1629 diff changeset	78 }
7e5f97bab1e6 ceval.c: dict of local mapping is now a tuple Guido van Rossum <guido@python.org> parents: 1629 diff changeset	79
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	80 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	81 {
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	82 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	83 if (!initialized)
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	84 if (no_cleanup)
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	85 _exit(0);
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	86 else
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	87 exit(0);
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	88 lwp_destroy(SELF);
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	89 }
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	90
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	91 void exit_thread _P0()
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	92 {
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	93 do_exit_thread(0);
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	94 }
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	95
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	96 void _exit_thread _P0()
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	97 {
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	98 do_exit_thread(1);
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	99 }
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 #ifndef NO_EXIT_PROG
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	102 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	103 {
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	104 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	105 if (!initialized)
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	106 if (no_cleanup)
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	107 _exit(status);
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	108 else
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	109 exit(status);
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	110 pod_exit(status);
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
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	113 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	114 {
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	115 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	116 }
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	117
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	118 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	119 {
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	120 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	121 }
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	122 #endif /* NO_EXIT_PROG */
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	123
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 * Lock support.
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 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	128 {
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	129 struct lock *lock;
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	130 extern char *malloc();
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 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	133 if (!initialized)
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	134 init_thread();
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	135
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	136 lock = (struct lock *) malloc(sizeof(struct lock));
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	137 lock->lock_locked = 0;
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	138 (void) mon_create(&lock->lock_monitor);
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	139 (void) cv_create(&lock->lock_condvar, lock->lock_monitor);
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	140 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	141 return (type_lock) lock;
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	142 }
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	143
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	144 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	145 {
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	146 dprintf(("free_lock(%lx) called\n", (long)lock));
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	147 mon_destroy(((struct lock *) lock)->lock_monitor);
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	148 free((char *) lock);
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	149 }
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	150
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	151 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	152 {
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	153 int success;
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	154
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	155 dprintf(("acquire_lock(%lx, %d) called\n", (long)lock, waitflag));
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	156 success = 0;
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	157
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	158 (void) mon_enter(((struct lock *) lock)->lock_monitor);
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	159 if (waitflag)
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	160 while (((struct lock *) lock)->lock_locked)
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	161 cv_wait(((struct lock *) lock)->lock_condvar);
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	162 if (!((struct lock *) lock)->lock_locked) {
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	163 success = 1;
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	164 ((struct lock *) lock)->lock_locked = 1;
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	165 }
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	166 cv_broadcast(((struct lock *) lock)->lock_condvar);
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	167 mon_exit(((struct lock *) lock)->lock_monitor);
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	168 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	169 return success;
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	170 }
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	171
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	172 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	173 {
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	174 dprintf(("release_lock(%lx) called\n", (long)lock));
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	175 (void) mon_enter(((struct lock *) lock)->lock_monitor);
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	176 ((struct lock *) lock)->lock_locked = 0;
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	177 cv_broadcast(((struct lock *) lock)->lock_condvar);
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	178 mon_exit(((struct lock *) lock)->lock_monitor);
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	179 }
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	180
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	181 /*
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	182 * Semaphore support.
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 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	185 {
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	186 type_sema sema = 0;
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	187 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	188 if (!initialized)
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	189 init_thread();
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	190
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	191 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	192 return (type_sema) sema;
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	193 }
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	194
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	195 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	196 {
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	197 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	198 }
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	199
4371 c277ee8c669c Sjoerd's thread changes (including down_sema typo fix). Guido van Rossum <guido@python.org> parents: 2062 diff changeset	200 int down_sema _P2(sema, type_sema sema, waitflag, int waitflag)
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	201 {
4371 c277ee8c669c Sjoerd's thread changes (including down_sema typo fix). Guido van Rossum <guido@python.org> parents: 2062 diff changeset	202 dprintf(("down_sema(%lx, %d) called\n", (long) sema, waitflag));
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	203 dprintf(("down_sema(%lx) return\n", (long) sema));
4371 c277ee8c669c Sjoerd's thread changes (including down_sema typo fix). Guido van Rossum <guido@python.org> parents: 2062 diff changeset	204 return -1;
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	205 }
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	206
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	207 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	208 {
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	209 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	210 }

Mercurial > cpython-lru_cache-weakref

annotate Python/thread_lwp.h @ 5758:bfe9ba74c19e legacy-trunk