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annotate Python/thread_sgi.h @ 42309:bd6acfdb47d2

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Merged revisions 56301-56442 via svnmerge from svn+ssh://pythondev@svn.python.org/python/branches/p3yk ................ r56322 | kurt.kaiser | 2007-07-12 11:35:03 -0700 (Thu, 12 Jul 2007) | 2 lines Replace obscure code which was failing in py3k. ................ r56323 | kurt.kaiser | 2007-07-12 11:44:12 -0700 (Thu, 12 Jul 2007) | 3 lines 1. Remove new division option 2. Update IDLE version to 3.0x ................ r56327 | kurt.kaiser | 2007-07-12 12:20:20 -0700 (Thu, 12 Jul 2007) | 5 lines Fix another instance of this defect in Tkinter, and one in IDLE. Patch 1724999 by Ali Gholami Rudi -- avoid complaints about dict size change during iter in destroy call. ................ r56339 | georg.brandl | 2007-07-13 03:07:25 -0700 (Fri, 13 Jul 2007) | 2 lines Fix #1753310: regrtest -x doesn't work anymore ................ r56361 | kurt.kaiser | 2007-07-13 18:25:24 -0700 (Fri, 13 Jul 2007) | 2 lines convert a map() iterator to a list to get this working. ................ r56362 | kurt.kaiser | 2007-07-13 18:53:45 -0700 (Fri, 13 Jul 2007) | 2 lines Was modifying dict during iteration. ................ r56376 | collin.winter | 2007-07-14 11:56:19 -0700 (Sat, 14 Jul 2007) | 1 line Add an example of class decorators to test_grammar. ................ r56377 | collin.winter | 2007-07-14 12:00:17 -0700 (Sat, 14 Jul 2007) | 1 line Add a basic example of dictcomps to test_grammar. ................ r56413 | neal.norwitz | 2007-07-17 00:21:18 -0700 (Tue, 17 Jul 2007) | 149 lines Merged revisions 56202-56412 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ........ r56204 | ronald.oussoren | 2007-07-08 23:02:21 -0700 (Sun, 08 Jul 2007) | 2 lines Patch 1693258: Fix for duplicate "preferences" menu-OS X ........ r56207 | ronald.oussoren | 2007-07-09 01:41:15 -0700 (Mon, 09 Jul 2007) | 4 lines Patch 1673122: be explicit about which libtool to use, to avoid name clashes when a users install GNU libtool early in his PATH ........ r56280 | georg.brandl | 2007-07-11 12:41:49 -0700 (Wed, 11 Jul 2007) | 2 lines Fix #1752132: wrong comment in opcode description. ........ r56293 | georg.brandl | 2007-07-12 01:05:45 -0700 (Thu, 12 Jul 2007) | 3 lines Patch #1752270, #1750931: complain if urllib2 add_handler called without handler. ........ r56296 | georg.brandl | 2007-07-12 01:11:29 -0700 (Thu, 12 Jul 2007) | 2 lines Patch #1739696: use code.co_code only if really necessary ........ r56298 | georg.brandl | 2007-07-12 01:38:00 -0700 (Thu, 12 Jul 2007) | 3 lines Patch #1673759: add a missing overflow check when formatting floats with %G. ........ r56302 | georg.brandl | 2007-07-12 02:06:41 -0700 (Thu, 12 Jul 2007) | 2 lines Patch #1731659: improve time.strptime docs. ........ r56304 | georg.brandl | 2007-07-12 02:24:04 -0700 (Thu, 12 Jul 2007) | 2 lines Patch #1731169: clean up expected skips list. ........ r56306 | georg.brandl | 2007-07-12 02:37:49 -0700 (Thu, 12 Jul 2007) | 3 lines Bug #1637365: add subsection about "__name__ == __main__" to the Python tutorial. ........ r56308 | georg.brandl | 2007-07-12 02:59:22 -0700 (Thu, 12 Jul 2007) | 5 lines Patch #1675424: Added tests for uncovered code in the zipfile module. The KeyError raised by Zipfile.getinfo for nonexistent names now has a descriptive message. ........ r56340 | facundo.batista | 2007-07-13 03:43:44 -0700 (Fri, 13 Jul 2007) | 6 lines Added tests for basic behavior of DateTime, Binary, and Fault classes and the escape function. Check that marshalling recursive sequences & dicts raises TypeError. Check that marshalling out-of-range ints raises OverflowError [Alan McIntyre - GSoC] ........ r56345 | raymond.hettinger | 2007-07-13 05:09:41 -0700 (Fri, 13 Jul 2007) | 1 line Correct the docs for takewhile(). Improve the recipe for nth(). Should be backported ........ r56348 | thomas.heller | 2007-07-13 06:59:39 -0700 (Fri, 13 Jul 2007) | 4 lines Repair COMError. Since exceptions are new style classes now, setting the methods and docstring after the type creation does not work, they must be in the dictionary before creating the type. ........ r56349 | thomas.heller | 2007-07-13 07:18:06 -0700 (Fri, 13 Jul 2007) | 1 line Add tests for _ctypes.COMError. ........ r56350 | thomas.heller | 2007-07-13 09:50:43 -0700 (Fri, 13 Jul 2007) | 4 lines Do not try to load the GLUT library in the ctypes tests. This test adds little value, but has a large problem on OS X, as explained in SF# 1581906. ........ r56352 | thomas.heller | 2007-07-13 10:12:23 -0700 (Fri, 13 Jul 2007) | 3 lines Fix for SF# 1701409: segfault in c_char_p of ctypes. The repr output of c_char_p and c_wchar_p has changed as a sideeffect. ........ r56355 | thomas.heller | 2007-07-13 10:46:54 -0700 (Fri, 13 Jul 2007) | 3 lines Fix for SF# 1649098: avoid zero-sized array declaration in structure. ........ r56357 | thomas.heller | 2007-07-13 12:51:55 -0700 (Fri, 13 Jul 2007) | 3 lines PyType_stgdict() returns a borrowed reference which must not be Py_DECREF'd. ........ r56360 | barry.warsaw | 2007-07-13 15:12:58 -0700 (Fri, 13 Jul 2007) | 10 lines In response to this SF bug: [ 1752723 ] email.message_from_string: initial line gets discarded I added a test to assert that when the first line of text passed to message_from_string() contains a leading space, the message ends up with the appropriate FirstHeaderLineIsContinuationDefect on its defects list. The bug is invalid. ........ r56364 | georg.brandl | 2007-07-14 10:12:23 -0700 (Sat, 14 Jul 2007) | 2 lines Bug #1753406: missing \versionadded for subprocess.check_call. ........ r56366 | georg.brandl | 2007-07-14 10:32:41 -0700 (Sat, 14 Jul 2007) | 2 lines Clarify webbrowser.open description. ........ r56380 | andrew.kuchling | 2007-07-14 13:58:21 -0700 (Sat, 14 Jul 2007) | 1 line Typo fix ........ r56382 | andrew.kuchling | 2007-07-14 14:56:19 -0700 (Sat, 14 Jul 2007) | 7 lines Avoid exception if there's a stray directory inside a Maildir folder. The Maildir specification doesn't seem to say anything about this situation, and it can happen if you're keeping a Maildir mailbox in Subversion (.svn directories) or some similar system. The patch just ignores directories in the cur/, new/, tmp/ folders. ........ r56392 | facundo.batista | 2007-07-14 15:41:45 -0700 (Sat, 14 Jul 2007) | 6 lines First version. Includes tests for helper functions: read, write, _exception, readwrite, closeall, compact_traceback; and for classes dispatcher, dispatcher_with_send, and file_wrapper. [Alan McIntyre - GSoC] ........ r56399 | facundo.batista | 2007-07-15 13:30:39 -0700 (Sun, 15 Jul 2007) | 5 lines Changed the used port and commented out some tests that uses a non documented function that appers to uses resources not present in Windows. ........ r56412 | facundo.batista | 2007-07-16 19:19:39 -0700 (Mon, 16 Jul 2007) | 6 lines Prevent asyncore.dispatcher tests from hanging by adding loop counters to server & client, and by adding asyncore.close_all calls in tearDown. Also choose correct expected logging results based on the value of __debug__ [Alan McIntyre - GSoC] ........ ................ r56442 | guido.van.rossum | 2007-07-18 10:26:38 -0700 (Wed, 18 Jul 2007) | 14 lines Merged revisions 56413-56441 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ........ r56439 | georg.brandl | 2007-07-17 23:37:55 -0700 (Tue, 17 Jul 2007) | 2 lines Use "Unix" as platform name, not "UNIX". ........ r56441 | guido.van.rossum | 2007-07-18 10:19:14 -0700 (Wed, 18 Jul 2007) | 3 lines SF patch# 1755885 by Kurt Kaiser: show location of Unicode escape errors. (Slightly tweaked for style and refcounts.) ........ ................
author Guido van Rossum <guido@python.org>
date Wed, 18 Jul 2007 18:15:48 +0000
parents e20fc1b80205
children e38335d4df91 df5719c298db
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1
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2 #include <stdlib.h>
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3 #include <stdio.h>
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4 #include <signal.h>
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5 #include <sys/types.h>
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6 #include <sys/wait.h>
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7 #include <sys/prctl.h>
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8 #include <ulocks.h>
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9 #include <errno.h>
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11 #define HDR_SIZE 2680 /* sizeof(ushdr_t) */
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12 #define MAXPROC 100 /* max # of threads that can be started */
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14 static usptr_t *shared_arena;
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15 static ulock_t count_lock; /* protection for some variables */
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16 static ulock_t wait_lock; /* lock used to wait for other threads */
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17 static int waiting_for_threads; /* protected by count_lock */
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18 static int nthreads; /* protected by count_lock */
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19 static int exit_status;
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20 #ifndef NO_EXIT_PROG
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21 static int do_exit; /* indicates that the program is to exit */
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22 #endif
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23 static int exiting; /* we're already exiting (for maybe_exit) */
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24 static pid_t my_pid; /* PID of main thread */
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25 static struct pidlist {
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26 pid_t parent;
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27 pid_t child;
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28 } pidlist[MAXPROC]; /* PIDs of other threads; protected by count_lock */
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29 static int maxpidindex; /* # of PIDs in pidlist */
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30
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31 #ifndef NO_EXIT_PROG
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32 /*
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33 * This routine is called as a signal handler when another thread
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34 * exits. When that happens, we must see whether we have to exit as
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35 * well (because of an PyThread_exit_prog()) or whether we should continue on.
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36 */
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37 static void exit_sig(void)
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38 {
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39 d2printf(("exit_sig called\n"));
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40 if (exiting && getpid() == my_pid) {
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41 d2printf(("already exiting\n"));
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42 return;
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43 }
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44 if (do_exit) {
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45 d2printf(("exiting in exit_sig\n"));
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46 #ifdef Py_DEBUG
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47 if ((thread_debug & 8) == 0)
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48 thread_debug &= ~1; /* don't produce debug messages */
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49 #endif
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50 PyThread_exit_thread();
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51 }
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52 }
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54 /*
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55 * This routine is called when a process calls exit(). If that wasn't
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56 * done from the library, we do as if an PyThread_exit_prog() was intended.
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57 */
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58 static void maybe_exit(void)
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59 {
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60 dprintf(("maybe_exit called\n"));
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61 if (exiting) {
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62 dprintf(("already exiting\n"));
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63 return;
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64 }
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65 PyThread_exit_prog(0);
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66 }
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67 #endif /* NO_EXIT_PROG */
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68
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69 /*
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70 * Initialization.
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71 */
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72 static void PyThread__init_thread(void)
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73 {
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74 #ifndef NO_EXIT_PROG
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75 struct sigaction s;
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76 #endif /* NO_EXIT_PROG */
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77 #ifdef USE_DL
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78 long addr, size;
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79 #endif /* USE_DL */
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82 #ifdef USE_DL
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83 if ((size = usconfig(CONF_INITSIZE, 64*1024)) < 0)
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84 perror("usconfig - CONF_INITSIZE (check)");
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85 if (usconfig(CONF_INITSIZE, size) < 0)
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86 perror("usconfig - CONF_INITSIZE (reset)");
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87 addr = (long) dl_getrange(size + HDR_SIZE);
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ff243b0f16ee Trent Mick <trentm@activestate.com>:
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88 dprintf(("trying to use addr %p-%p for shared arena\n", addr, addr+size));
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89 errno = 0;
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90 if ((addr = usconfig(CONF_ATTACHADDR, addr)) < 0 && errno != 0)
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91 perror("usconfig - CONF_ATTACHADDR (set)");
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92 #endif /* USE_DL */
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parents:
diff changeset
93 if (usconfig(CONF_INITUSERS, 16) < 0)
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diff changeset
94 perror("usconfig - CONF_INITUSERS");
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diff changeset
95 my_pid = getpid(); /* so that we know which is the main thread */
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diff changeset
96 #ifndef NO_EXIT_PROG
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diff changeset
97 atexit(maybe_exit);
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diff changeset
98 s.sa_handler = exit_sig;
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diff changeset
99 sigemptyset(&s.sa_mask);
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diff changeset
100 /*sigaddset(&s.sa_mask, SIGUSR1);*/
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101 s.sa_flags = 0;
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diff changeset
102 sigaction(SIGUSR1, &s, 0);
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diff changeset
103 if (prctl(PR_SETEXITSIG, SIGUSR1) < 0)
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104 perror("prctl - PR_SETEXITSIG");
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diff changeset
105 #endif /* NO_EXIT_PROG */
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parents:
diff changeset
106 if (usconfig(CONF_ARENATYPE, US_SHAREDONLY) < 0)
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diff changeset
107 perror("usconfig - CONF_ARENATYPE");
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diff changeset
108 usconfig(CONF_LOCKTYPE, US_DEBUG); /* XXX */
4839
4567e158d20c Rename DEBUG macro to Py_DEBUG
Guido van Rossum <guido@python.org>
parents: 4503
diff changeset
109 #ifdef Py_DEBUG
1628
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diff changeset
110 if (thread_debug & 4)
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diff changeset
111 usconfig(CONF_LOCKTYPE, US_DEBUGPLUS);
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diff changeset
112 else if (thread_debug & 2)
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diff changeset
113 usconfig(CONF_LOCKTYPE, US_DEBUG);
4839
4567e158d20c Rename DEBUG macro to Py_DEBUG
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diff changeset
114 #endif /* Py_DEBUG */
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115 if ((shared_arena = usinit(tmpnam(0))) == 0)
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diff changeset
116 perror("usinit");
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diff changeset
117 #ifdef USE_DL
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118 if (usconfig(CONF_ATTACHADDR, addr) < 0) /* reset address */
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119 perror("usconfig - CONF_ATTACHADDR (reset)");
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diff changeset
120 #endif /* USE_DL */
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diff changeset
121 if ((count_lock = usnewlock(shared_arena)) == NULL)
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122 perror("usnewlock (count_lock)");
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123 (void) usinitlock(count_lock);
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124 if ((wait_lock = usnewlock(shared_arena)) == NULL)
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diff changeset
125 perror("usnewlock (wait_lock)");
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ff243b0f16ee Trent Mick <trentm@activestate.com>:
Fred Drake <fdrake@acm.org>
parents: 9679
diff changeset
126 dprintf(("arena start: %p, arena size: %ld\n", shared_arena, (long) usconfig(CONF_GETSIZE, shared_arena)));
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127 }
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128
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
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129 /*
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130 * Thread support.
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diff changeset
131 */
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132
13658
f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern'
Thomas Wouters <thomas@python.org>
parents: 13256
diff changeset
133 static void clean_threads(void)
1628
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diff changeset
134 {
1655
90ee71a3a13e Fix waiting for children -- save ppid in pidlist as well.
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diff changeset
135 int i, j;
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diff changeset
136 pid_t mypid, pid;
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137
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
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138 /* clean up any exited threads */
1655
90ee71a3a13e Fix waiting for children -- save ppid in pidlist as well.
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diff changeset
139 mypid = getpid();
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140 i = 0;
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diff changeset
141 while (i < maxpidindex) {
1655
90ee71a3a13e Fix waiting for children -- save ppid in pidlist as well.
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diff changeset
142 if (pidlist[i].parent == mypid && (pid = pidlist[i].child) > 0) {
1628
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diff changeset
143 pid = waitpid(pid, 0, WNOHANG);
1655
90ee71a3a13e Fix waiting for children -- save ppid in pidlist as well.
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diff changeset
144 if (pid > 0) {
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145 /* a thread has exited */
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diff changeset
146 pidlist[i] = pidlist[--maxpidindex];
1655
90ee71a3a13e Fix waiting for children -- save ppid in pidlist as well.
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diff changeset
147 /* remove references to children of dead proc */
90ee71a3a13e Fix waiting for children -- save ppid in pidlist as well.
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diff changeset
148 for (j = 0; j < maxpidindex; j++)
90ee71a3a13e Fix waiting for children -- save ppid in pidlist as well.
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parents: 1651
diff changeset
149 if (pidlist[j].parent == pid)
90ee71a3a13e Fix waiting for children -- save ppid in pidlist as well.
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diff changeset
150 pidlist[j].child = -1;
1628
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diff changeset
151 continue; /* don't increment i */
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diff changeset
152 }
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
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diff changeset
153 }
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diff changeset
154 i++;
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
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diff changeset
155 }
1655
90ee71a3a13e Fix waiting for children -- save ppid in pidlist as well.
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diff changeset
156 /* clean up the list */
90ee71a3a13e Fix waiting for children -- save ppid in pidlist as well.
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diff changeset
157 i = 0;
90ee71a3a13e Fix waiting for children -- save ppid in pidlist as well.
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diff changeset
158 while (i < maxpidindex) {
90ee71a3a13e Fix waiting for children -- save ppid in pidlist as well.
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diff changeset
159 if (pidlist[i].child == -1) {
90ee71a3a13e Fix waiting for children -- save ppid in pidlist as well.
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diff changeset
160 pidlist[i] = pidlist[--maxpidindex];
90ee71a3a13e Fix waiting for children -- save ppid in pidlist as well.
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parents: 1651
diff changeset
161 continue; /* don't increment i */
90ee71a3a13e Fix waiting for children -- save ppid in pidlist as well.
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parents: 1651
diff changeset
162 }
90ee71a3a13e Fix waiting for children -- save ppid in pidlist as well.
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diff changeset
163 i++;
90ee71a3a13e Fix waiting for children -- save ppid in pidlist as well.
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parents: 1651
diff changeset
164 }
1628
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diff changeset
165 }
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diff changeset
166
20468
ebfd87e87884 Partial patch from SF #452266, by Jason Petrone.
Guido van Rossum <guido@python.org>
parents: 14375
diff changeset
167 long PyThread_start_new_thread(void (*func)(void *), void *arg)
1628
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diff changeset
168 {
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diff changeset
169 #ifdef USE_DL
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diff changeset
170 long addr, size;
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diff changeset
171 static int local_initialized = 0;
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Guido van Rossum <guido@python.org>
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diff changeset
172 #endif /* USE_DL */
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diff changeset
173 int success = 0; /* init not needed when SOLARIS_THREADS and */
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parents:
diff changeset
174 /* C_THREADS implemented properly */
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diff changeset
175
9679
877d23bd5bdc Thanks to Chris Herborth, the thread primitives now have proper Py*
Guido van Rossum <guido@python.org>
parents: 5405
diff changeset
176 dprintf(("PyThread_start_new_thread called\n"));
1628
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parents:
diff changeset
177 if (!initialized)
9679
877d23bd5bdc Thanks to Chris Herborth, the thread primitives now have proper Py*
Guido van Rossum <guido@python.org>
parents: 5405
diff changeset
178 PyThread_init_thread();
1628
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diff changeset
179 switch (ussetlock(count_lock)) {
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diff changeset
180 case 0: return 0;
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parents:
diff changeset
181 case -1: perror("ussetlock (count_lock)");
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parents:
diff changeset
182 }
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parents:
diff changeset
183 if (maxpidindex >= MAXPROC)
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parents:
diff changeset
184 success = -1;
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parents:
diff changeset
185 else {
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parents:
diff changeset
186 #ifdef USE_DL
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parents:
diff changeset
187 if (!local_initialized) {
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
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parents:
diff changeset
188 if ((size = usconfig(CONF_INITSIZE, 64*1024)) < 0)
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
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parents:
diff changeset
189 perror("usconfig - CONF_INITSIZE (check)");
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parents:
diff changeset
190 if (usconfig(CONF_INITSIZE, size) < 0)
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parents:
diff changeset
191 perror("usconfig - CONF_INITSIZE (reset)");
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parents:
diff changeset
192 addr = (long) dl_getrange(size + HDR_SIZE);
13210
ff243b0f16ee Trent Mick <trentm@activestate.com>:
Fred Drake <fdrake@acm.org>
parents: 9679
diff changeset
193 dprintf(("trying to use addr %p-%p for sproc\n",
1655
90ee71a3a13e Fix waiting for children -- save ppid in pidlist as well.
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parents: 1651
diff changeset
194 addr, addr+size));
1628
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diff changeset
195 errno = 0;
1655
90ee71a3a13e Fix waiting for children -- save ppid in pidlist as well.
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parents: 1651
diff changeset
196 if ((addr = usconfig(CONF_ATTACHADDR, addr)) < 0 &&
90ee71a3a13e Fix waiting for children -- save ppid in pidlist as well.
Guido van Rossum <guido@python.org>
parents: 1651
diff changeset
197 errno != 0)
1628
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diff changeset
198 perror("usconfig - CONF_ATTACHADDR (set)");
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parents:
diff changeset
199 }
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diff changeset
200 #endif /* USE_DL */
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diff changeset
201 clean_threads();
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parents:
diff changeset
202 if ((success = sproc(func, PR_SALL, arg)) < 0)
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Guido van Rossum <guido@python.org>
parents:
diff changeset
203 perror("sproc");
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Guido van Rossum <guido@python.org>
parents:
diff changeset
204 #ifdef USE_DL
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parents:
diff changeset
205 if (!local_initialized) {
1655
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parents: 1651
diff changeset
206 if (usconfig(CONF_ATTACHADDR, addr) < 0)
90ee71a3a13e Fix waiting for children -- save ppid in pidlist as well.
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parents: 1651
diff changeset
207 /* reset address */
1628
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diff changeset
208 perror("usconfig - CONF_ATTACHADDR (reset)");
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parents:
diff changeset
209 local_initialized = 1;
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parents:
diff changeset
210 }
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
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parents:
diff changeset
211 #endif /* USE_DL */
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parents:
diff changeset
212 if (success >= 0) {
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
213 nthreads++;
1655
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parents: 1651
diff changeset
214 pidlist[maxpidindex].parent = getpid();
90ee71a3a13e Fix waiting for children -- save ppid in pidlist as well.
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parents: 1651
diff changeset
215 pidlist[maxpidindex++].child = success;
90ee71a3a13e Fix waiting for children -- save ppid in pidlist as well.
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parents: 1651
diff changeset
216 dprintf(("pidlist[%d] = %d\n",
90ee71a3a13e Fix waiting for children -- save ppid in pidlist as well.
Guido van Rossum <guido@python.org>
parents: 1651
diff changeset
217 maxpidindex-1, success));
1628
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diff changeset
218 }
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
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parents:
diff changeset
219 }
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
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parents:
diff changeset
220 if (usunsetlock(count_lock) < 0)
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
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parents:
diff changeset
221 perror("usunsetlock (count_lock)");
20468
ebfd87e87884 Partial patch from SF #452266, by Jason Petrone.
Guido van Rossum <guido@python.org>
parents: 14375
diff changeset
222 return success;
1628
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diff changeset
223 }
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224
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225 long PyThread_get_thread_ident(void)
1651
7e5f97bab1e6 ceval.c: dict of local mapping is now a tuple
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diff changeset
226 {
7e5f97bab1e6 ceval.c: dict of local mapping is now a tuple
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parents: 1628
diff changeset
227 return getpid();
7e5f97bab1e6 ceval.c: dict of local mapping is now a tuple
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parents: 1628
diff changeset
228 }
7e5f97bab1e6 ceval.c: dict of local mapping is now a tuple
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diff changeset
229
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230 static void do_PyThread_exit_thread(int no_cleanup)
1628
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231 {
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232 dprintf(("PyThread_exit_thread called\n"));
1628
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233 if (!initialized)
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diff changeset
234 if (no_cleanup)
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parents:
diff changeset
235 _exit(0);
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parents:
diff changeset
236 else
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
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diff changeset
237 exit(0);
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
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diff changeset
238 if (ussetlock(count_lock) < 0)
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
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diff changeset
239 perror("ussetlock (count_lock)");
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
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diff changeset
240 nthreads--;
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
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diff changeset
241 if (getpid() == my_pid) {
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
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parents:
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242 /* main thread; wait for other threads to exit */
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
243 exiting = 1;
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244 #ifndef NO_EXIT_PROG
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
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diff changeset
245 if (do_exit) {
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
246 int i;
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247
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
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248 /* notify other threads */
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249 clean_threads();
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diff changeset
250 if (nthreads >= 0) {
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
251 dprintf(("kill other threads\n"));
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
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252 for (i = 0; i < maxpidindex; i++)
1655
90ee71a3a13e Fix waiting for children -- save ppid in pidlist as well.
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diff changeset
253 if (pidlist[i].child > 0)
90ee71a3a13e Fix waiting for children -- save ppid in pidlist as well.
Guido van Rossum <guido@python.org>
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254 (void) kill(pidlist[i].child,
1628
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255 SIGKILL);
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
256 _exit(exit_status);
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
257 }
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
258 }
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
259 #endif /* NO_EXIT_PROG */
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
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parents:
diff changeset
260 waiting_for_threads = 1;
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
261 if (ussetlock(wait_lock) < 0)
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
262 perror("ussetlock (wait_lock)");
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
263 for (;;) {
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
264 if (nthreads < 0) {
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
265 dprintf(("really exit (%d)\n", exit_status));
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
266 if (no_cleanup)
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
267 _exit(exit_status);
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
268 else
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
269 exit(exit_status);
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
270 }
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
271 if (usunsetlock(count_lock) < 0)
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
272 perror("usunsetlock (count_lock)");
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
273 dprintf(("waiting for other threads (%d)\n", nthreads));
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
274 if (ussetlock(wait_lock) < 0)
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
275 perror("ussetlock (wait_lock)");
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
276 if (ussetlock(count_lock) < 0)
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
277 perror("ussetlock (count_lock)");
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
278 }
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
279 }
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
280 /* not the main thread */
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
281 if (waiting_for_threads) {
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
282 dprintf(("main thread is waiting\n"));
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
283 if (usunsetlock(wait_lock) < 0)
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
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parents:
diff changeset
284 perror("usunsetlock (wait_lock)");
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
285 }
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
286 #ifndef NO_EXIT_PROG
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
287 else if (do_exit)
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
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parents:
diff changeset
288 (void) kill(my_pid, SIGUSR1);
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
289 #endif /* NO_EXIT_PROG */
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
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parents:
diff changeset
290 if (usunsetlock(count_lock) < 0)
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
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parents:
diff changeset
291 perror("usunsetlock (count_lock)");
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
292 _exit(0);
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
293 }
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
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diff changeset
294
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f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern'
Thomas Wouters <thomas@python.org>
parents: 13256
diff changeset
295 void PyThread_exit_thread(void)
1628
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
296 {
9679
877d23bd5bdc Thanks to Chris Herborth, the thread primitives now have proper Py*
Guido van Rossum <guido@python.org>
parents: 5405
diff changeset
297 do_PyThread_exit_thread(0);
1628
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
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parents:
diff changeset
298 }
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
299
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f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern'
Thomas Wouters <thomas@python.org>
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diff changeset
300 void PyThread__exit_thread(void)
1628
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
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parents:
diff changeset
301 {
9679
877d23bd5bdc Thanks to Chris Herborth, the thread primitives now have proper Py*
Guido van Rossum <guido@python.org>
parents: 5405
diff changeset
302 do_PyThread_exit_thread(1);
1628
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
303 }
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
304
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
305 #ifndef NO_EXIT_PROG
13658
f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern'
Thomas Wouters <thomas@python.org>
parents: 13256
diff changeset
306 static void do_PyThread_exit_prog(int status, int no_cleanup)
1628
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
307 {
9679
877d23bd5bdc Thanks to Chris Herborth, the thread primitives now have proper Py*
Guido van Rossum <guido@python.org>
parents: 5405
diff changeset
308 dprintf(("PyThread_exit_prog(%d) called\n", status));
1628
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
309 if (!initialized)
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
310 if (no_cleanup)
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
311 _exit(status);
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
312 else
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
313 exit(status);
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
314 do_exit = 1;
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
315 exit_status = status;
9679
877d23bd5bdc Thanks to Chris Herborth, the thread primitives now have proper Py*
Guido van Rossum <guido@python.org>
parents: 5405
diff changeset
316 do_PyThread_exit_thread(no_cleanup);
1628
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
317 }
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
318
13658
f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern'
Thomas Wouters <thomas@python.org>
parents: 13256
diff changeset
319 void PyThread_exit_prog(int status)
1628
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
320 {
9679
877d23bd5bdc Thanks to Chris Herborth, the thread primitives now have proper Py*
Guido van Rossum <guido@python.org>
parents: 5405
diff changeset
321 do_PyThread_exit_prog(status, 0);
1628
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
322 }
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
323
13658
f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern'
Thomas Wouters <thomas@python.org>
parents: 13256
diff changeset
324 void PyThread__exit_prog(int status)
1628
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
325 {
9679
877d23bd5bdc Thanks to Chris Herborth, the thread primitives now have proper Py*
Guido van Rossum <guido@python.org>
parents: 5405
diff changeset
326 do_PyThread_exit_prog(status, 1);
1628
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
327 }
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
328 #endif /* NO_EXIT_PROG */
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
329
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
330 /*
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
331 * Lock support.
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
332 */
13658
f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern'
Thomas Wouters <thomas@python.org>
parents: 13256
diff changeset
333 PyThread_type_lock PyThread_allocate_lock(void)
1628
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
334 {
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
335 ulock_t lock;
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
336
9679
877d23bd5bdc Thanks to Chris Herborth, the thread primitives now have proper Py*
Guido van Rossum <guido@python.org>
parents: 5405
diff changeset
337 dprintf(("PyThread_allocate_lock called\n"));
1628
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
338 if (!initialized)
9679
877d23bd5bdc Thanks to Chris Herborth, the thread primitives now have proper Py*
Guido van Rossum <guido@python.org>
parents: 5405
diff changeset
339 PyThread_init_thread();
1628
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
340
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
341 if ((lock = usnewlock(shared_arena)) == NULL)
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
342 perror("usnewlock");
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
343 (void) usinitlock(lock);
13210
ff243b0f16ee Trent Mick <trentm@activestate.com>:
Fred Drake <fdrake@acm.org>
parents: 9679
diff changeset
344 dprintf(("PyThread_allocate_lock() -> %p\n", lock));
9679
877d23bd5bdc Thanks to Chris Herborth, the thread primitives now have proper Py*
Guido van Rossum <guido@python.org>
parents: 5405
diff changeset
345 return (PyThread_type_lock) lock;
1628
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
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parents:
diff changeset
346 }
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
347
13658
f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern'
Thomas Wouters <thomas@python.org>
parents: 13256
diff changeset
348 void PyThread_free_lock(PyThread_type_lock lock)
1628
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
349 {
13210
ff243b0f16ee Trent Mick <trentm@activestate.com>:
Fred Drake <fdrake@acm.org>
parents: 9679
diff changeset
350 dprintf(("PyThread_free_lock(%p) called\n", lock));
1628
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
351 usfreelock((ulock_t) lock, shared_arena);
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
352 }
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
353
13658
f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern'
Thomas Wouters <thomas@python.org>
parents: 13256
diff changeset
354 int PyThread_acquire_lock(PyThread_type_lock lock, int waitflag)
1628
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
355 {
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
356 int success;
a9dd2e1ea5c9 Split thread.c into a number of system-specific files.
Guido van Rossum <guido@python.org>
parents:
diff changeset
357
13210
ff243b0f16ee Trent Mick <trentm@activestate.com>:
Fred Drake <fdrake@acm.org>
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358 dprintf(("PyThread_acquire_lock(%p, %d) called\n", lock, waitflag));
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359 errno = 0; /* clear it just in case */
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360 if (waitflag)
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361 success = ussetlock((ulock_t) lock);
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362 else
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363 success = uscsetlock((ulock_t) lock, 1); /* Try it once */
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364 if (success < 0)
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365 perror(waitflag ? "ussetlock" : "uscsetlock");
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Fred Drake <fdrake@acm.org>
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366 dprintf(("PyThread_acquire_lock(%p, %d) -> %d\n", lock, waitflag, success));
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367 return success;
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368 }
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369
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370 void PyThread_release_lock(PyThread_type_lock lock)
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371 {
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372 dprintf(("PyThread_release_lock(%p) called\n", lock));
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373 if (usunsetlock((ulock_t) lock) < 0)
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374 perror("usunsetlock");
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375 }