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

annotate Python/thread.c @ 1179:9ae65ee09735 legacy-trunk

Various changes. * Makefile: svmodule.c.proto and svgen.py are gone, svmodule.c came in their stead. Also, pass -DUSE_DL flag to thread.c and give the user a possibility to add the -DDEBUG to just thread.c. * ceval.c: init_save_thread() can be called more than once now. * svgen.py, svmodule.c.proto, svmodule.c: Removed prototype file and replaced it by the generated file. * thread.c: Added some more checks; added call to DL library when it is also used to tell it where the shared arena is so that DL can use some other area. * threadmodule.c: Call init_save_thread from another place. Also, added new function getlocklock() which does to lock objects what getfilefile does to file objects.

author	Sjoerd Mullender <sjoerd@acm.org>
date	Wed, 06 Jan 1993 13:36:38 +0000
parents	6b5a34db21fe
children	cf8ddb29e26e

rev	line source
923 72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	1 #include "thread.h"
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	2
961 a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	3 #ifdef DEBUG
1047 6b5a34db21fe Added C++ support in thread.h; don't use signals if not strictly Sjoerd Mullender <sjoerd@acm.org> parents: 1005 diff changeset	4 static int thread_debug = 0;
6b5a34db21fe Added C++ support in thread.h; don't use signals if not strictly Sjoerd Mullender <sjoerd@acm.org> parents: 1005 diff changeset	5 #define dprintf(args) (thread_debug && printf args)
961 a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	6 #else
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	7 #define dprintf(args)
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	8 #endif
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	9
923 72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	10 #ifdef __sgi
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	11 #include <stdlib.h>
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	12 #include <stdio.h>
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	13 #include <signal.h>
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	14 #include <sys/types.h>
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	15 #include <sys/prctl.h>
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	16 #include <ulocks.h>
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	17
961 a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	18 #define MAXPROC 100 /* max # of threads that can be started */
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	19
923 72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	20 static usptr_t *shared_arena;
961 a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	21 static ulock_t count_lock; /* protection for some variables */
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	22 static ulock_t wait_lock; /* lock used to wait for other threads */
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	23 static int waiting_for_threads; /* protected by count_lock */
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	24 static int nthreads; /* protected by count_lock */
923 72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	25 static int exit_status;
1179 9ae65ee09735 Various changes. Sjoerd Mullender <sjoerd@acm.org> parents: 1047 diff changeset	26 static int do_exit; /* indicates that the program is to exit */
961 a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	27 static int exiting; /* we're already exiting (for maybe_exit) */
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	28 static pid_t my_pid; /* PID of main thread */
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	29 static pid_t pidlist[MAXPROC]; /* PIDs of other threads */
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	30 static int maxpidindex; /* # of PIDs in pidlist */
923 72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	31 #endif
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	32 #ifdef sun
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	33 #include <lwp/lwp.h>
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	34 #include <lwp/stackdep.h>
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	35
961 a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	36 #define STACKSIZE 1000 /* stacksize for a thread */
923 72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	37 #define NSTACKS 2 /* # stacks to be put in cache initialy */
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	38
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	39 struct lock {
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	40 int lock_locked;
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	41 cv_t lock_condvar;
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	42 mon_t lock_monitor;
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	43 };
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	44 #endif
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	45 #ifdef C_THREADS
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	46 #include <cthreads.h>
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	47 #endif
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	48
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	49 #ifdef __STDC__
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	50 #define _P(args) args
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	51 #define _P0() (void)
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	52 #define _P1(v,t) (t)
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	53 #define _P2(v1,t1,v2,t2) (t1,t2)
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	54 #else
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	55 #define _P(args) ()
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	56 #define _P0() ()
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	57 #define _P1(v,t) (v) t;
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	58 #define _P2(v1,t1,v2,t2) (v1,v2) t1; t2;
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	59 #endif
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	60
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	61 static int initialized;
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	62
1004 5d7142ea01b7 adapted SV module to the new svideo library. Sjoerd Mullender <sjoerd@acm.org> parents: 961 diff changeset	63 #ifdef __sgi
5d7142ea01b7 adapted SV module to the new svideo library. Sjoerd Mullender <sjoerd@acm.org> parents: 961 diff changeset	64 /*
5d7142ea01b7 adapted SV module to the new svideo library. Sjoerd Mullender <sjoerd@acm.org> parents: 961 diff changeset	65 * This routine is called as a signal handler when another thread
5d7142ea01b7 adapted SV module to the new svideo library. Sjoerd Mullender <sjoerd@acm.org> parents: 961 diff changeset	66 * exits. When that happens, we must see whether we have to exit as
5d7142ea01b7 adapted SV module to the new svideo library. Sjoerd Mullender <sjoerd@acm.org> parents: 961 diff changeset	67 * well (because of an exit_prog()) or whether we should continue on.
5d7142ea01b7 adapted SV module to the new svideo library. Sjoerd Mullender <sjoerd@acm.org> parents: 961 diff changeset	68 */
5d7142ea01b7 adapted SV module to the new svideo library. Sjoerd Mullender <sjoerd@acm.org> parents: 961 diff changeset	69 static void exit_sig _P0()
5d7142ea01b7 adapted SV module to the new svideo library. Sjoerd Mullender <sjoerd@acm.org> parents: 961 diff changeset	70 {
5d7142ea01b7 adapted SV module to the new svideo library. Sjoerd Mullender <sjoerd@acm.org> parents: 961 diff changeset	71 dprintf(("exit_sig called\n"));
5d7142ea01b7 adapted SV module to the new svideo library. Sjoerd Mullender <sjoerd@acm.org> parents: 961 diff changeset	72 if (exiting && getpid() == my_pid) {
5d7142ea01b7 adapted SV module to the new svideo library. Sjoerd Mullender <sjoerd@acm.org> parents: 961 diff changeset	73 dprintf(("already exiting\n"));
5d7142ea01b7 adapted SV module to the new svideo library. Sjoerd Mullender <sjoerd@acm.org> parents: 961 diff changeset	74 return;
5d7142ea01b7 adapted SV module to the new svideo library. Sjoerd Mullender <sjoerd@acm.org> parents: 961 diff changeset	75 }
5d7142ea01b7 adapted SV module to the new svideo library. Sjoerd Mullender <sjoerd@acm.org> parents: 961 diff changeset	76 if (do_exit) {
5d7142ea01b7 adapted SV module to the new svideo library. Sjoerd Mullender <sjoerd@acm.org> parents: 961 diff changeset	77 dprintf(("exiting in exit_sig\n"));
5d7142ea01b7 adapted SV module to the new svideo library. Sjoerd Mullender <sjoerd@acm.org> parents: 961 diff changeset	78 exit_thread();
5d7142ea01b7 adapted SV module to the new svideo library. Sjoerd Mullender <sjoerd@acm.org> parents: 961 diff changeset	79 }
5d7142ea01b7 adapted SV module to the new svideo library. Sjoerd Mullender <sjoerd@acm.org> parents: 961 diff changeset	80 }
5d7142ea01b7 adapted SV module to the new svideo library. Sjoerd Mullender <sjoerd@acm.org> parents: 961 diff changeset	81
5d7142ea01b7 adapted SV module to the new svideo library. Sjoerd Mullender <sjoerd@acm.org> parents: 961 diff changeset	82 /*
5d7142ea01b7 adapted SV module to the new svideo library. Sjoerd Mullender <sjoerd@acm.org> parents: 961 diff changeset	83 * This routine is called when a process calls exit(). If that wasn't
5d7142ea01b7 adapted SV module to the new svideo library. Sjoerd Mullender <sjoerd@acm.org> parents: 961 diff changeset	84 * done from the library, we do as if an exit_prog() was intended.
5d7142ea01b7 adapted SV module to the new svideo library. Sjoerd Mullender <sjoerd@acm.org> parents: 961 diff changeset	85 */
5d7142ea01b7 adapted SV module to the new svideo library. Sjoerd Mullender <sjoerd@acm.org> parents: 961 diff changeset	86 static void maybe_exit _P0()
5d7142ea01b7 adapted SV module to the new svideo library. Sjoerd Mullender <sjoerd@acm.org> parents: 961 diff changeset	87 {
5d7142ea01b7 adapted SV module to the new svideo library. Sjoerd Mullender <sjoerd@acm.org> parents: 961 diff changeset	88 dprintf(("maybe_exit called\n"));
5d7142ea01b7 adapted SV module to the new svideo library. Sjoerd Mullender <sjoerd@acm.org> parents: 961 diff changeset	89 if (exiting) {
5d7142ea01b7 adapted SV module to the new svideo library. Sjoerd Mullender <sjoerd@acm.org> parents: 961 diff changeset	90 dprintf(("already exiting\n"));
5d7142ea01b7 adapted SV module to the new svideo library. Sjoerd Mullender <sjoerd@acm.org> parents: 961 diff changeset	91 return;
5d7142ea01b7 adapted SV module to the new svideo library. Sjoerd Mullender <sjoerd@acm.org> parents: 961 diff changeset	92 }
5d7142ea01b7 adapted SV module to the new svideo library. Sjoerd Mullender <sjoerd@acm.org> parents: 961 diff changeset	93 exit_prog(0);
5d7142ea01b7 adapted SV module to the new svideo library. Sjoerd Mullender <sjoerd@acm.org> parents: 961 diff changeset	94 }
5d7142ea01b7 adapted SV module to the new svideo library. Sjoerd Mullender <sjoerd@acm.org> parents: 961 diff changeset	95 #endif
5d7142ea01b7 adapted SV module to the new svideo library. Sjoerd Mullender <sjoerd@acm.org> parents: 961 diff changeset	96
5d7142ea01b7 adapted SV module to the new svideo library. Sjoerd Mullender <sjoerd@acm.org> parents: 961 diff changeset	97 /*
5d7142ea01b7 adapted SV module to the new svideo library. Sjoerd Mullender <sjoerd@acm.org> parents: 961 diff changeset	98 * Initialization.
5d7142ea01b7 adapted SV module to the new svideo library. Sjoerd Mullender <sjoerd@acm.org> parents: 961 diff changeset	99 */
5d7142ea01b7 adapted SV module to the new svideo library. Sjoerd Mullender <sjoerd@acm.org> parents: 961 diff changeset	100 void init_thread _P0()
5d7142ea01b7 adapted SV module to the new svideo library. Sjoerd Mullender <sjoerd@acm.org> parents: 961 diff changeset	101 {
5d7142ea01b7 adapted SV module to the new svideo library. Sjoerd Mullender <sjoerd@acm.org> parents: 961 diff changeset	102 #ifdef __sgi
5d7142ea01b7 adapted SV module to the new svideo library. Sjoerd Mullender <sjoerd@acm.org> parents: 961 diff changeset	103 struct sigaction s;
5d7142ea01b7 adapted SV module to the new svideo library. Sjoerd Mullender <sjoerd@acm.org> parents: 961 diff changeset	104 #endif
5d7142ea01b7 adapted SV module to the new svideo library. Sjoerd Mullender <sjoerd@acm.org> parents: 961 diff changeset	105
1047 6b5a34db21fe Added C++ support in thread.h; don't use signals if not strictly Sjoerd Mullender <sjoerd@acm.org> parents: 1005 diff changeset	106 #ifdef DEBUG
6b5a34db21fe Added C++ support in thread.h; don't use signals if not strictly Sjoerd Mullender <sjoerd@acm.org> parents: 1005 diff changeset	107 thread_debug = getenv("THREADDEBUG") != 0;
6b5a34db21fe Added C++ support in thread.h; don't use signals if not strictly Sjoerd Mullender <sjoerd@acm.org> parents: 1005 diff changeset	108 #endif
1004 5d7142ea01b7 adapted SV module to the new svideo library. Sjoerd Mullender <sjoerd@acm.org> parents: 961 diff changeset	109 if (initialized)
5d7142ea01b7 adapted SV module to the new svideo library. Sjoerd Mullender <sjoerd@acm.org> parents: 961 diff changeset	110 return;
5d7142ea01b7 adapted SV module to the new svideo library. Sjoerd Mullender <sjoerd@acm.org> parents: 961 diff changeset	111 initialized = 1;
1179 9ae65ee09735 Various changes. Sjoerd Mullender <sjoerd@acm.org> parents: 1047 diff changeset	112 dprintf(("init_thread called\n"));
1004 5d7142ea01b7 adapted SV module to the new svideo library. Sjoerd Mullender <sjoerd@acm.org> parents: 961 diff changeset	113
5d7142ea01b7 adapted SV module to the new svideo library. Sjoerd Mullender <sjoerd@acm.org> parents: 961 diff changeset	114 #ifdef __sgi
1179 9ae65ee09735 Various changes. Sjoerd Mullender <sjoerd@acm.org> parents: 1047 diff changeset	115 if (usconfig(CONF_INITUSERS, 16) < 0)
9ae65ee09735 Various changes. Sjoerd Mullender <sjoerd@acm.org> parents: 1047 diff changeset	116 perror("usconfig - CONF_INITUSERS");
1004 5d7142ea01b7 adapted SV module to the new svideo library. Sjoerd Mullender <sjoerd@acm.org> parents: 961 diff changeset	117 my_pid = getpid(); /* so that we know which is the main thread */
5d7142ea01b7 adapted SV module to the new svideo library. Sjoerd Mullender <sjoerd@acm.org> parents: 961 diff changeset	118 atexit(maybe_exit);
5d7142ea01b7 adapted SV module to the new svideo library. Sjoerd Mullender <sjoerd@acm.org> parents: 961 diff changeset	119 s.sa_handler = exit_sig;
5d7142ea01b7 adapted SV module to the new svideo library. Sjoerd Mullender <sjoerd@acm.org> parents: 961 diff changeset	120 sigemptyset(&s.sa_mask);
1047 6b5a34db21fe Added C++ support in thread.h; don't use signals if not strictly Sjoerd Mullender <sjoerd@acm.org> parents: 1005 diff changeset	121 /sigaddset(&s.sa_mask, SIGUSR1);/
1004 5d7142ea01b7 adapted SV module to the new svideo library. Sjoerd Mullender <sjoerd@acm.org> parents: 961 diff changeset	122 s.sa_flags = 0;
5d7142ea01b7 adapted SV module to the new svideo library. Sjoerd Mullender <sjoerd@acm.org> parents: 961 diff changeset	123 sigaction(SIGUSR1, &s, 0);
1179 9ae65ee09735 Various changes. Sjoerd Mullender <sjoerd@acm.org> parents: 1047 diff changeset	124 if (prctl(PR_SETEXITSIG, SIGUSR1) < 0)
9ae65ee09735 Various changes. Sjoerd Mullender <sjoerd@acm.org> parents: 1047 diff changeset	125 perror("prctl - PR_SETEXITSIG");
9ae65ee09735 Various changes. Sjoerd Mullender <sjoerd@acm.org> parents: 1047 diff changeset	126 if (usconfig(CONF_ARENATYPE, US_SHAREDONLY) < 0)
9ae65ee09735 Various changes. Sjoerd Mullender <sjoerd@acm.org> parents: 1047 diff changeset	127 perror("usconfig - CONF_ARENATYPE");
1004 5d7142ea01b7 adapted SV module to the new svideo library. Sjoerd Mullender <sjoerd@acm.org> parents: 961 diff changeset	128 /usconfig(CONF_LOCKTYPE, US_DEBUGPLUS);/
1179 9ae65ee09735 Various changes. Sjoerd Mullender <sjoerd@acm.org> parents: 1047 diff changeset	129 if ((shared_arena = usinit(tmpnam(0))) == 0)
9ae65ee09735 Various changes. Sjoerd Mullender <sjoerd@acm.org> parents: 1047 diff changeset	130 perror("usinit");
1004 5d7142ea01b7 adapted SV module to the new svideo library. Sjoerd Mullender <sjoerd@acm.org> parents: 961 diff changeset	131 count_lock = usnewlock(shared_arena);
5d7142ea01b7 adapted SV module to the new svideo library. Sjoerd Mullender <sjoerd@acm.org> parents: 961 diff changeset	132 (void) usinitlock(count_lock);
5d7142ea01b7 adapted SV module to the new svideo library. Sjoerd Mullender <sjoerd@acm.org> parents: 961 diff changeset	133 wait_lock = usnewlock(shared_arena);
1179 9ae65ee09735 Various changes. Sjoerd Mullender <sjoerd@acm.org> parents: 1047 diff changeset	134 dprintf(("arena start: %lx, arena size: %ld\n", (long) shared_arena, (long) usconfig(CONF_GETSIZE, shared_arena)));
9ae65ee09735 Various changes. Sjoerd Mullender <sjoerd@acm.org> parents: 1047 diff changeset	135 #ifdef USE_DL /* for python */
9ae65ee09735 Various changes. Sjoerd Mullender <sjoerd@acm.org> parents: 1047 diff changeset	136 dl_setrange((long) shared_arena, (long) shared_arena + 64 * 1024);
9ae65ee09735 Various changes. Sjoerd Mullender <sjoerd@acm.org> parents: 1047 diff changeset	137 #endif
1004 5d7142ea01b7 adapted SV module to the new svideo library. Sjoerd Mullender <sjoerd@acm.org> parents: 961 diff changeset	138 #endif
5d7142ea01b7 adapted SV module to the new svideo library. Sjoerd Mullender <sjoerd@acm.org> parents: 961 diff changeset	139 #ifdef sun
5d7142ea01b7 adapted SV module to the new svideo library. Sjoerd Mullender <sjoerd@acm.org> parents: 961 diff changeset	140 lwp_setstkcache(STACKSIZE, NSTACKS);
5d7142ea01b7 adapted SV module to the new svideo library. Sjoerd Mullender <sjoerd@acm.org> parents: 961 diff changeset	141 #endif
5d7142ea01b7 adapted SV module to the new svideo library. Sjoerd Mullender <sjoerd@acm.org> parents: 961 diff changeset	142 #ifdef C_THREADS
5d7142ea01b7 adapted SV module to the new svideo library. Sjoerd Mullender <sjoerd@acm.org> parents: 961 diff changeset	143 cthread_init();
5d7142ea01b7 adapted SV module to the new svideo library. Sjoerd Mullender <sjoerd@acm.org> parents: 961 diff changeset	144 #endif
5d7142ea01b7 adapted SV module to the new svideo library. Sjoerd Mullender <sjoerd@acm.org> parents: 961 diff changeset	145 }
5d7142ea01b7 adapted SV module to the new svideo library. Sjoerd Mullender <sjoerd@acm.org> parents: 961 diff changeset	146
5d7142ea01b7 adapted SV module to the new svideo library. Sjoerd Mullender <sjoerd@acm.org> parents: 961 diff changeset	147 /*
5d7142ea01b7 adapted SV module to the new svideo library. Sjoerd Mullender <sjoerd@acm.org> parents: 961 diff changeset	148 * Thread support.
5d7142ea01b7 adapted SV module to the new svideo library. Sjoerd Mullender <sjoerd@acm.org> parents: 961 diff changeset	149 */
923 72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	150 int start_new_thread _P2(func, void (func) _P((void )), arg, void *arg)
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	151 {
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	152 #ifdef sun
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	153 thread_t tid;
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	154 #endif
961 a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	155 int success = 0; /* init not needed when SOLARIS and */
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	156 /* C_THREADS implemented properly */
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	157
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	158 dprintf(("start_new_thread called\n"));
923 72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	159 if (!initialized)
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	160 init_thread();
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	161 #ifdef __sgi
961 a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	162 if (ussetlock(count_lock) == 0)
923 72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	163 return 0;
961 a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	164 if (maxpidindex >= MAXPROC)
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	165 success = -1;
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	166 else {
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	167 success = sproc(func, PR_SALL, arg);
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	168 if (success >= 0) {
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	169 nthreads++;
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	170 pidlist[maxpidindex++] = success;
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	171 }
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	172 }
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	173 (void) usunsetlock(count_lock);
923 72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	174 #endif
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	175 #ifdef SOLARIS
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	176 (void) thread_create(0, 0, func, arg, THREAD_NEW_LWP);
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	177 #endif
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	178 #ifdef sun
961 a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	179 success = lwp_create(&tid, func, MINPRIO, 0, lwp_newstk(), 1, arg);
923 72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	180 #endif
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	181 #ifdef C_THREADS
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	182 (void) cthread_fork(func, arg);
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	183 #endif
961 a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	184 return success < 0 ? 0 : 1;
923 72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	185 }
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	186
961 a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	187 static void do_exit_thread _P1(no_cleanup, int no_cleanup)
923 72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	188 {
961 a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	189 dprintf(("exit_thread called\n"));
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	190 if (!initialized)
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	191 if (no_cleanup)
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	192 _exit(0);
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	193 else
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	194 exit(0);
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	195 #ifdef __sgi
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	196 (void) ussetlock(count_lock);
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	197 nthreads--;
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	198 if (getpid() == my_pid) {
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	199 /* main thread; wait for other threads to exit */
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	200 exiting = 1;
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	201 if (do_exit) {
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	202 int i;
923 72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	203
961 a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	204 /* notify other threads */
1047 6b5a34db21fe Added C++ support in thread.h; don't use signals if not strictly Sjoerd Mullender <sjoerd@acm.org> parents: 1005 diff changeset	205 if (nthreads >= 0) {
6b5a34db21fe Added C++ support in thread.h; don't use signals if not strictly Sjoerd Mullender <sjoerd@acm.org> parents: 1005 diff changeset	206 dprintf(("kill other threads\n"));
6b5a34db21fe Added C++ support in thread.h; don't use signals if not strictly Sjoerd Mullender <sjoerd@acm.org> parents: 1005 diff changeset	207 for (i = 0; i < maxpidindex; i++)
6b5a34db21fe Added C++ support in thread.h; don't use signals if not strictly Sjoerd Mullender <sjoerd@acm.org> parents: 1005 diff changeset	208 (void) kill(pidlist[i], SIGKILL);
6b5a34db21fe Added C++ support in thread.h; don't use signals if not strictly Sjoerd Mullender <sjoerd@acm.org> parents: 1005 diff changeset	209 _exit(exit_status);
6b5a34db21fe Added C++ support in thread.h; don't use signals if not strictly Sjoerd Mullender <sjoerd@acm.org> parents: 1005 diff changeset	210 }
961 a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	211 }
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	212 waiting_for_threads = 1;
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	213 ussetlock(wait_lock);
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	214 for (;;) {
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	215 if (nthreads < 0) {
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	216 dprintf(("really exit (%d)\n", exit_status));
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	217 if (no_cleanup)
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	218 _exit(exit_status);
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	219 else
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	220 exit(exit_status);
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	221 }
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	222 usunsetlock(count_lock);
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	223 dprintf(("waiting for other threads (%d)\n", nthreads));
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	224 ussetlock(wait_lock);
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	225 ussetlock(count_lock);
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	226 }
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	227 }
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	228 /* not the main thread */
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	229 if (waiting_for_threads) {
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	230 dprintf(("main thread is waiting\n"));
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	231 usunsetlock(wait_lock);
1047 6b5a34db21fe Added C++ support in thread.h; don't use signals if not strictly Sjoerd Mullender <sjoerd@acm.org> parents: 1005 diff changeset	232 } else if (do_exit)
6b5a34db21fe Added C++ support in thread.h; don't use signals if not strictly Sjoerd Mullender <sjoerd@acm.org> parents: 1005 diff changeset	233 (void) kill(my_pid, SIGUSR1);
961 a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	234 (void) usunsetlock(count_lock);
926 c156d4960c2b * Makefile: cosmetics Guido van Rossum <guido@python.org> parents: 923 diff changeset	235 _exit(0);
923 72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	236 #endif
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	237 #ifdef SOLARIS
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	238 thread_exit();
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	239 #endif
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	240 #ifdef sun
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	241 lwp_destroy(SELF);
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	242 #endif
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	243 #ifdef C_THREADS
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	244 cthread_exit(0);
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	245 #endif
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	246 }
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	247
961 a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	248 void exit_thread _P0()
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	249 {
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	250 do_exit_thread(0);
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	251 }
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	252
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	253 void _exit_thread _P0()
923 72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	254 {
961 a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	255 do_exit_thread(1);
923 72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	256 }
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	257
961 a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	258 static void do_exit_prog _P2(status, int status, no_cleanup, int no_cleanup)
923 72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	259 {
961 a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	260 dprintf(("exit_prog(%d) called\n", status));
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	261 if (!initialized)
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	262 if (no_cleanup)
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	263 _exit(status);
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	264 else
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	265 exit(status);
923 72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	266 #ifdef __sgi
961 a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	267 do_exit = 1;
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	268 exit_status = status;
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	269 do_exit_thread(no_cleanup);
923 72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	270 #endif
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	271 #ifdef sun
961 a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	272 pod_exit(status);
923 72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	273 #endif
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	274 }
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	275
961 a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	276 void exit_prog _P1(status, int status)
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	277 {
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	278 do_exit_prog(status, 0);
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	279 }
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	280
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	281 void _exit_prog _P1(status, int status)
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	282 {
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	283 do_exit_prog(status, 1);
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	284 }
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	285
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	286 /*
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	287 * Lock support.
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	288 */
923 72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	289 type_lock allocate_lock _P0()
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	290 {
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	291 #ifdef __sgi
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	292 ulock_t lock;
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	293 #endif
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	294 #ifdef sun
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	295 struct lock *lock;
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	296 extern char *malloc();
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	297 #endif
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	298
961 a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	299 dprintf(("allocate_lock called\n"));
923 72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	300 if (!initialized)
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	301 init_thread();
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	302
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	303 #ifdef __sgi
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	304 lock = usnewlock(shared_arena);
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	305 (void) usinitlock(lock);
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	306 #endif
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	307 #ifdef sun
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	308 lock = (struct lock *) malloc(sizeof(struct lock));
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	309 lock->lock_locked = 0;
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	310 (void) mon_create(&lock->lock_monitor);
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	311 (void) cv_create(&lock->lock_condvar, lock->lock_monitor);
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	312 #endif
961 a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	313 dprintf(("allocate_lock() -> %lx\n", (long)lock));
923 72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	314 return (type_lock) lock;
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	315 }
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	316
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	317 void free_lock _P1(lock, type_lock lock)
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	318 {
961 a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	319 dprintf(("free_lock(%lx) called\n", (long)lock));
923 72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	320 #ifdef __sgi
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	321 usfreelock((ulock_t) lock, shared_arena);
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	322 #endif
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	323 #ifdef sun
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	324 mon_destroy(((struct lock *) lock)->lock_monitor);
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	325 free((char *) lock);
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	326 #endif
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	327 }
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	328
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	329 int acquire_lock _P2(lock, type_lock lock, waitflag, int waitflag)
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	330 {
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	331 int success;
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	332
961 a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	333 dprintf(("acquire_lock(%lx, %d) called\n", (long)lock, waitflag));
923 72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	334 #ifdef __sgi
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	335 if (waitflag)
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	336 success = ussetlock((ulock_t) lock);
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	337 else
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	338 success = uscsetlock((ulock_t) lock, 1); /* Try it once */
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	339 #endif
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	340 #ifdef sun
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	341 success = 0;
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	342
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	343 (void) mon_enter(((struct lock *) lock)->lock_monitor);
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	344 if (waitflag)
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	345 while (((struct lock *) lock)->lock_locked)
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	346 cv_wait(((struct lock *) lock)->lock_condvar);
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	347 if (!((struct lock *) lock)->lock_locked) {
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	348 success = 1;
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	349 ((struct lock *) lock)->lock_locked = 1;
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	350 }
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	351 cv_broadcast(((struct lock *) lock)->lock_condvar);
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	352 mon_exit(((struct lock *) lock)->lock_monitor);
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	353 #endif
961 a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	354 dprintf(("acquire_lock(%lx, %d) -> %d\n", (long)lock, waitflag, success));
923 72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	355 return success;
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	356 }
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	357
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	358 void release_lock _P1(lock, type_lock lock)
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	359 {
961 a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	360 dprintf(("release_lock(%lx) called\n", (long)lock));
923 72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	361 #ifdef __sgi
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	362 (void) usunsetlock((ulock_t) lock);
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	363 #endif
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	364 #ifdef sun
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	365 (void) mon_enter(((struct lock *) lock)->lock_monitor);
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	366 ((struct lock *) lock)->lock_locked = 0;
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	367 cv_broadcast(((struct lock *) lock)->lock_condvar);
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	368 mon_exit(((struct lock *) lock)->lock_monitor);
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	369 #endif
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	370 }
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	371
961 a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	372 /*
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	373 * Semaphore support.
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	374 */
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	375 type_sema allocate_sema _P1(value, int value)
923 72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	376 {
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	377 #ifdef __sgi
961 a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	378 usema_t *sema;
923 72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	379 #endif
961 a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	380
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	381 dprintf(("allocate_sema called\n"));
1047 6b5a34db21fe Added C++ support in thread.h; don't use signals if not strictly Sjoerd Mullender <sjoerd@acm.org> parents: 1005 diff changeset	382 if (!initialized)
6b5a34db21fe Added C++ support in thread.h; don't use signals if not strictly Sjoerd Mullender <sjoerd@acm.org> parents: 1005 diff changeset	383 init_thread();
961 a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	384
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	385 #ifdef __sgi
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	386 sema = usnewsema(shared_arena, value);
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	387 dprintf(("allocate_sema() -> %lx\n", (long) sema));
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	388 return (type_sema) sema;
923 72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	389 #endif
72aceed365d4 * Makefile adapted to changes below. Guido van Rossum <guido@python.org> parents: diff changeset	390 }
961 a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	391
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	392 void free_sema _P1(sema, type_sema sema)
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	393 {
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	394 dprintf(("free_sema(%lx) called\n", (long) sema));
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	395 #ifdef __sgi
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	396 usfreesema((usema_t *) sema, shared_arena);
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	397 #endif
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	398 }
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	399
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	400 void down_sema _P1(sema, type_sema sema)
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	401 {
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	402 dprintf(("down_sema(%lx) called\n", (long) sema));
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	403 #ifdef __sgi
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	404 (void) uspsema((usema_t *) sema);
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	405 #endif
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	406 dprintf(("down_sema(%lx) return\n", (long) sema));
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	407 }
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	408
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	409 void up_sema _P1(sema, type_sema sema)
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	410 {
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	411 dprintf(("up_sema(%lx)\n", (long) sema));
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	412 #ifdef __sgi
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	413 (void) usvsema((usema_t *) sema);
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	414 #endif
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway() Guido van Rossum <guido@python.org> parents: 926 diff changeset	415 }

Mercurial > cpython-lru_cache-weakref

annotate Python/thread.c @ 1179:9ae65ee09735 legacy-trunk