Mercurial > cpython-lru_cache-weakref

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

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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
line wrap: on
line diff
--- a/Python/thread.c	Mon Jan 04 09:16:51 1993 +0000
+++ b/Python/thread.c	Wed Jan 06 13:36:38 1993 +0000
@@ -23,7 +23,7 @@
 static int waiting_for_threads;	/* protected by count_lock */
 static int nthreads;		/* protected by count_lock */
 static int exit_status;
-static int do_exit;
+static int do_exit;		/* indicates that the program is to exit */
 static int exiting;		/* we're already exiting (for maybe_exit) */
 static pid_t my_pid;		/* PID of main thread */
 static pid_t pidlist[MAXPROC];	/* PIDs of other threads */
@@ -106,12 +106,14 @@
 #ifdef DEBUG
 	thread_debug = getenv("THREADDEBUG") != 0;
 #endif
-	dprintf(("init_thread called\n"));
 	if (initialized)
 		return;
 	initialized = 1;
+	dprintf(("init_thread called\n"));
 
 #ifdef __sgi
+	if (usconfig(CONF_INITUSERS, 16) < 0)
+		perror("usconfig - CONF_INITUSERS");
 	my_pid = getpid();	/* so that we know which is the main thread */
 	atexit(maybe_exit);
 	s.sa_handler = exit_sig;
@@ -119,13 +121,20 @@
 	/*sigaddset(&s.sa_mask, SIGUSR1);*/
 	s.sa_flags = 0;
 	sigaction(SIGUSR1, &s, 0);
-	prctl(PR_SETEXITSIG, SIGUSR1);
-	usconfig(CONF_ARENATYPE, US_SHAREDONLY);
+	if (prctl(PR_SETEXITSIG, SIGUSR1) < 0)
+		perror("prctl - PR_SETEXITSIG");
+	if (usconfig(CONF_ARENATYPE, US_SHAREDONLY) < 0)
+		perror("usconfig - CONF_ARENATYPE");
 	/*usconfig(CONF_LOCKTYPE, US_DEBUGPLUS);*/
-	shared_arena = usinit(tmpnam(0));
+	if ((shared_arena = usinit(tmpnam(0))) == 0)
+		perror("usinit");
 	count_lock = usnewlock(shared_arena);
 	(void) usinitlock(count_lock);
 	wait_lock = usnewlock(shared_arena);
+	dprintf(("arena start: %lx, arena size: %ld\n", (long) shared_arena, (long) usconfig(CONF_GETSIZE, shared_arena)));
+#ifdef USE_DL			/* for python */
+	dl_setrange((long) shared_arena, (long) shared_arena + 64 * 1024);
+#endif
 #endif
 #ifdef sun
 	lwp_setstkcache(STACKSIZE, NSTACKS);