cpython-lru_cache-weakref: Python/thread

annotate Python/thread_pthread.h @ 8358:da4bdceeaad7 legacy-trunk

Another veeeeeery old patch... Date: Thu, 14 Sep 1995 12:18:20 -0400 From: Alan Morse <alan@dvcorp.com> To: python-list@cwi.nl Subject: getargs bug in 1.2 and 1.3 BETA We have found a bug in the part of the getargs code that we added and submitted, and which was incorporated into 1.1. The parsing of "O?" format specifiers is not handled correctly; there is no "else" for the "if" and therefore it can never fail. What's worse, the advancing of the varargs pointer is not handled properly, so from then on it is out of sync, wreaking all sorts of havoc. (If it had failed properly, then the out-of-sync varargs would not have been an issue.) Below is the context diff for the change. Note that I have made a few stylistic changes beyond adding the else case, namely: 1) Making the "O" case follow the convention established by the other format specifiers of getting all their vararg arguments before performing the test, rather than getting some before and some after the test passes. 2) Making the logic of the tests parallel, so the "if" part indicates that the format is accepted and the "else" part indicates that the format has failed. They were inconsistent with each other and with the the other format specifiers. -Alan Morse (amorse@dvcorp.com)

author	Guido van Rossum <guido@python.org>
date	Fri, 15 May 1998 22:04:07 +0000
parents	1b4a37f37345
children	5bc64efc65e0

rev	line source
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	1 /***********************************************************
2062 d0d0a69b5ca3 Added 1995 to copyright message. Guido van Rossum <guido@python.org> parents: 1651 diff changeset	2 Copyright 1991-1995 by Stichting Mathematisch Centrum, Amsterdam,
d0d0a69b5ca3 Added 1995 to copyright message. Guido van Rossum <guido@python.org> parents: 1651 diff changeset	3 The Netherlands.
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	4
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	5 All Rights Reserved
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	6
4503 65d2d8e67da3 New permission notice, includes CNRI. Guido van Rossum <guido@python.org> parents: 4371 diff changeset	7 Permission to use, copy, modify, and distribute this software and its
65d2d8e67da3 New permission notice, includes CNRI. Guido van Rossum <guido@python.org> parents: 4371 diff changeset	8 documentation for any purpose and without fee is hereby granted,
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	9 provided that the above copyright notice appear in all copies and that
4503 65d2d8e67da3 New permission notice, includes CNRI. Guido van Rossum <guido@python.org> parents: 4371 diff changeset	10 both that copyright notice and this permission notice appear in
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	11 supporting documentation, and that the names of Stichting Mathematisch
4503 65d2d8e67da3 New permission notice, includes CNRI. Guido van Rossum <guido@python.org> parents: 4371 diff changeset	12 Centrum or CWI or Corporation for National Research Initiatives or
65d2d8e67da3 New permission notice, includes CNRI. Guido van Rossum <guido@python.org> parents: 4371 diff changeset	13 CNRI not be used in advertising or publicity pertaining to
65d2d8e67da3 New permission notice, includes CNRI. Guido van Rossum <guido@python.org> parents: 4371 diff changeset	14 distribution of the software without specific, written prior
65d2d8e67da3 New permission notice, includes CNRI. Guido van Rossum <guido@python.org> parents: 4371 diff changeset	15 permission.
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	16
4503 65d2d8e67da3 New permission notice, includes CNRI. Guido van Rossum <guido@python.org> parents: 4371 diff changeset	17 While CWI is the initial source for this software, a modified version
65d2d8e67da3 New permission notice, includes CNRI. Guido van Rossum <guido@python.org> parents: 4371 diff changeset	18 is made available by the Corporation for National Research Initiatives
65d2d8e67da3 New permission notice, includes CNRI. Guido van Rossum <guido@python.org> parents: 4371 diff changeset	19 (CNRI) at the Internet address ftp://ftp.python.org.
65d2d8e67da3 New permission notice, includes CNRI. Guido van Rossum <guido@python.org> parents: 4371 diff changeset	20
65d2d8e67da3 New permission notice, includes CNRI. Guido van Rossum <guido@python.org> parents: 4371 diff changeset	21 STICHTING MATHEMATISCH CENTRUM AND CNRI DISCLAIM ALL WARRANTIES WITH
65d2d8e67da3 New permission notice, includes CNRI. Guido van Rossum <guido@python.org> parents: 4371 diff changeset	22 REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF
65d2d8e67da3 New permission notice, includes CNRI. Guido van Rossum <guido@python.org> parents: 4371 diff changeset	23 MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH
65d2d8e67da3 New permission notice, includes CNRI. Guido van Rossum <guido@python.org> parents: 4371 diff changeset	24 CENTRUM OR CNRI BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL
65d2d8e67da3 New permission notice, includes CNRI. Guido van Rossum <guido@python.org> parents: 4371 diff changeset	25 DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
65d2d8e67da3 New permission notice, includes CNRI. Guido van Rossum <guido@python.org> parents: 4371 diff changeset	26 PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
65d2d8e67da3 New permission notice, includes CNRI. Guido van Rossum <guido@python.org> parents: 4371 diff changeset	27 TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
65d2d8e67da3 New permission notice, includes CNRI. Guido van Rossum <guido@python.org> parents: 4371 diff changeset	28 PERFORMANCE OF THIS SOFTWARE.
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	29
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	30 ******************************************************************/
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	31
3663 07164d30429d Got rid of florida hack and made it work with Solaris 2.5 pthreads. Guido van Rossum <guido@python.org> parents: 2097 diff changeset	32 /* Posix threads interface */
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	33
3663 07164d30429d Got rid of florida hack and made it work with Solaris 2.5 pthreads. Guido van Rossum <guido@python.org> parents: 2097 diff changeset	34 #include <stdlib.h>
07164d30429d Got rid of florida hack and made it work with Solaris 2.5 pthreads. Guido van Rossum <guido@python.org> parents: 2097 diff changeset	35 #include <pthread.h>
07164d30429d Got rid of florida hack and made it work with Solaris 2.5 pthreads. Guido van Rossum <guido@python.org> parents: 2097 diff changeset	36
5493 ef93d51dab36 Support for various versions of the pthread draft. Guido van Rossum <guido@python.org> parents: 5395 diff changeset	37
ef93d51dab36 Support for various versions of the pthread draft. Guido van Rossum <guido@python.org> parents: 5395 diff changeset	38 /* try to determine what version of the Pthread Standard is installed.
ef93d51dab36 Support for various versions of the pthread draft. Guido van Rossum <guido@python.org> parents: 5395 diff changeset	39 * this is important, since all sorts of parameter types changed from
ef93d51dab36 Support for various versions of the pthread draft. Guido van Rossum <guido@python.org> parents: 5395 diff changeset	40 * draft to draft and there are several (incompatible) drafts in
ef93d51dab36 Support for various versions of the pthread draft. Guido van Rossum <guido@python.org> parents: 5395 diff changeset	41 * common use. these macros are a start, at least.
ef93d51dab36 Support for various versions of the pthread draft. Guido van Rossum <guido@python.org> parents: 5395 diff changeset	42 * 12 May 1997 -- david arnold <davida@pobox.com>
ef93d51dab36 Support for various versions of the pthread draft. Guido van Rossum <guido@python.org> parents: 5395 diff changeset	43 */
3965 9c05ff6fb0a4 Changes necessary for AIX. Guido van Rossum <guido@python.org> parents: 3663 diff changeset	44
5493 ef93d51dab36 Support for various versions of the pthread draft. Guido van Rossum <guido@python.org> parents: 5395 diff changeset	45 #if defined(__ultrix) && defined(__mips) && defined(_DECTHREADS_)
ef93d51dab36 Support for various versions of the pthread draft. Guido van Rossum <guido@python.org> parents: 5395 diff changeset	46 /* _DECTHREADS_ is defined in cma.h which is included by pthread.h */
ef93d51dab36 Support for various versions of the pthread draft. Guido van Rossum <guido@python.org> parents: 5395 diff changeset	47 # define PY_PTHREAD_D4
ef93d51dab36 Support for various versions of the pthread draft. Guido van Rossum <guido@python.org> parents: 5395 diff changeset	48
ef93d51dab36 Support for various versions of the pthread draft. Guido van Rossum <guido@python.org> parents: 5395 diff changeset	49 #elif defined(__osf__) && defined (__alpha)
ef93d51dab36 Support for various versions of the pthread draft. Guido van Rossum <guido@python.org> parents: 5395 diff changeset	50 /* _DECTHREADS_ is defined in cma.h which is included by pthread.h */
ef93d51dab36 Support for various versions of the pthread draft. Guido van Rossum <guido@python.org> parents: 5395 diff changeset	51 # if !defined(_PTHREAD_ENV_ALPHA) \|\| defined(_PTHREAD_USE_D4) \|\| defined(PTHREAD_USE_D4)
ef93d51dab36 Support for various versions of the pthread draft. Guido van Rossum <guido@python.org> parents: 5395 diff changeset	52 # define PY_PTHREAD_D4
ef93d51dab36 Support for various versions of the pthread draft. Guido van Rossum <guido@python.org> parents: 5395 diff changeset	53 # else
ef93d51dab36 Support for various versions of the pthread draft. Guido van Rossum <guido@python.org> parents: 5395 diff changeset	54 # define PY_PTHREAD_STD
ef93d51dab36 Support for various versions of the pthread draft. Guido van Rossum <guido@python.org> parents: 5395 diff changeset	55 # endif
ef93d51dab36 Support for various versions of the pthread draft. Guido van Rossum <guido@python.org> parents: 5395 diff changeset	56
ef93d51dab36 Support for various versions of the pthread draft. Guido van Rossum <guido@python.org> parents: 5395 diff changeset	57 #elif defined(_AIX)
3965 9c05ff6fb0a4 Changes necessary for AIX. Guido van Rossum <guido@python.org> parents: 3663 diff changeset	58 /* SCHED_BG_NP is defined if using AIX DCE pthreads
9c05ff6fb0a4 Changes necessary for AIX. Guido van Rossum <guido@python.org> parents: 3663 diff changeset	59 * but it is unsupported by AIX 4 pthreads. Default
9c05ff6fb0a4 Changes necessary for AIX. Guido van Rossum <guido@python.org> parents: 3663 diff changeset	60 * attributes for AIX 4 pthreads equal to NULL. For
9c05ff6fb0a4 Changes necessary for AIX. Guido van Rossum <guido@python.org> parents: 3663 diff changeset	61 * AIX DCE pthreads they should be left unchanged.
9c05ff6fb0a4 Changes necessary for AIX. Guido van Rossum <guido@python.org> parents: 3663 diff changeset	62 */
5493 ef93d51dab36 Support for various versions of the pthread draft. Guido van Rossum <guido@python.org> parents: 5395 diff changeset	63 # if !defined(SCHED_BG_NP)
ef93d51dab36 Support for various versions of the pthread draft. Guido van Rossum <guido@python.org> parents: 5395 diff changeset	64 # define PY_PTHREAD_STD
ef93d51dab36 Support for various versions of the pthread draft. Guido van Rossum <guido@python.org> parents: 5395 diff changeset	65 # else
ef93d51dab36 Support for various versions of the pthread draft. Guido van Rossum <guido@python.org> parents: 5395 diff changeset	66 # define PY_PTHREAD_D7
ef93d51dab36 Support for various versions of the pthread draft. Guido van Rossum <guido@python.org> parents: 5395 diff changeset	67 # endif
ef93d51dab36 Support for various versions of the pthread draft. Guido van Rossum <guido@python.org> parents: 5395 diff changeset	68
5599 b5e51ae9f832 DG/UX thread patches (Ross Andrus) Guido van Rossum <guido@python.org> parents: 5529 diff changeset	69 #elif defined(__DGUX)
b5e51ae9f832 DG/UX thread patches (Ross Andrus) Guido van Rossum <guido@python.org> parents: 5529 diff changeset	70 # define PY_PTHREAD_D6
5700 60fca4783793 Add default case (standard conformance) to avoid piling up Guido van Rossum <guido@python.org> parents: 5599 diff changeset	71
8343 1b4a37f37345 Improved version of patch for HPUX from David Arnold. Guido van Rossum <guido@python.org> parents: 8250 diff changeset	72 #elif defined(__hpux) && defined(_DECTHREADS_)
8250 50d35bdf2042 Support HPUX 10.20 DCE threads. Guido van Rossum <guido@python.org> parents: 7982 diff changeset	73 # define PY_PTHREAD_D4
50d35bdf2042 Support HPUX 10.20 DCE threads. Guido van Rossum <guido@python.org> parents: 7982 diff changeset	74
5700 60fca4783793 Add default case (standard conformance) to avoid piling up Guido van Rossum <guido@python.org> parents: 5599 diff changeset	75 #else /* Default case */
60fca4783793 Add default case (standard conformance) to avoid piling up Guido van Rossum <guido@python.org> parents: 5599 diff changeset	76 # define PY_PTHREAD_STD
60fca4783793 Add default case (standard conformance) to avoid piling up Guido van Rossum <guido@python.org> parents: 5599 diff changeset	77
3965 9c05ff6fb0a4 Changes necessary for AIX. Guido van Rossum <guido@python.org> parents: 3663 diff changeset	78 #endif
9c05ff6fb0a4 Changes necessary for AIX. Guido van Rossum <guido@python.org> parents: 3663 diff changeset	79
5493 ef93d51dab36 Support for various versions of the pthread draft. Guido van Rossum <guido@python.org> parents: 5395 diff changeset	80
ef93d51dab36 Support for various versions of the pthread draft. Guido van Rossum <guido@python.org> parents: 5395 diff changeset	81 /* set default attribute object for different versions */
ef93d51dab36 Support for various versions of the pthread draft. Guido van Rossum <guido@python.org> parents: 5395 diff changeset	82
ef93d51dab36 Support for various versions of the pthread draft. Guido van Rossum <guido@python.org> parents: 5395 diff changeset	83 #if defined(PY_PTHREAD_D4) \|\| defined(PY_PTHREAD_D7)
ef93d51dab36 Support for various versions of the pthread draft. Guido van Rossum <guido@python.org> parents: 5395 diff changeset	84 # define pthread_attr_default pthread_attr_default
ef93d51dab36 Support for various versions of the pthread draft. Guido van Rossum <guido@python.org> parents: 5395 diff changeset	85 # define pthread_mutexattr_default pthread_mutexattr_default
ef93d51dab36 Support for various versions of the pthread draft. Guido van Rossum <guido@python.org> parents: 5395 diff changeset	86 # define pthread_condattr_default pthread_condattr_default
5599 b5e51ae9f832 DG/UX thread patches (Ross Andrus) Guido van Rossum <guido@python.org> parents: 5529 diff changeset	87 #elif defined(PY_PTHREAD_STD) \|\| defined(PY_PTHREAD_D6)
5493 ef93d51dab36 Support for various versions of the pthread draft. Guido van Rossum <guido@python.org> parents: 5395 diff changeset	88 # define pthread_attr_default ((pthread_attr_t *)NULL)
ef93d51dab36 Support for various versions of the pthread draft. Guido van Rossum <guido@python.org> parents: 5395 diff changeset	89 # define pthread_mutexattr_default ((pthread_mutexattr_t *)NULL)
ef93d51dab36 Support for various versions of the pthread draft. Guido van Rossum <guido@python.org> parents: 5395 diff changeset	90 # define pthread_condattr_default ((pthread_condattr_t *)NULL)
3965 9c05ff6fb0a4 Changes necessary for AIX. Guido van Rossum <guido@python.org> parents: 3663 diff changeset	91 #endif
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	92
5493 ef93d51dab36 Support for various versions of the pthread draft. Guido van Rossum <guido@python.org> parents: 5395 diff changeset	93
1629 4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	94 /* A pthread mutex isn't sufficient to model the Python lock type
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	95 * because, according to Draft 5 of the docs (P1003.4a/D5), both of the
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	96 * following are undefined:
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	97 * -> a thread tries to lock a mutex it already has locked
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	98 * -> a thread tries to unlock a mutex locked by a different thread
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	99 * pthread mutexes are designed for serializing threads over short pieces
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	100 * of code anyway, so wouldn't be an appropriate implementation of
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	101 * Python's locks regardless.
1629 4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	102 *
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	103 * The pthread_lock struct implements a Python lock as a "locked?" bit
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	104 * and a <condition, mutex> pair. In general, if the bit can be acquired
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	105 * instantly, it is, else the pair is used to block the thread until the
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	106 * bit is cleared. 9 May 1994 tim@ksr.com
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	107 */
1629 4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	108
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	109 typedef struct {
1629 4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	110 char locked; /* 0=unlocked, 1=locked */
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	111 /* a <cond, mutex> pair to handle an acquire of a locked lock */
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	112 pthread_cond_t lock_released;
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	113 pthread_mutex_t mut;
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	114 } pthread_lock;
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	115
1629 4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	116 #define CHECK_STATUS(name) if (status < 0) { perror(name); error=1; }
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	117
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	118 /*
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	119 * Initialization.
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	120 */
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	121 static void _init_thread _P0()
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	122 {
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	123 }
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	124
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	125 /*
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	126 * Thread support.
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	127 */
1629 4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	128
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	129
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	130 int start_new_thread _P2(func, void (func) _P((void )), arg, void *arg)
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	131 {
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	132 pthread_t th;
1651 7e5f97bab1e6 ceval.c: dict of local mapping is now a tuple Guido van Rossum <guido@python.org> parents: 1629 diff changeset	133 int success;
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	134 dprintf(("start_new_thread called\n"));
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	135 if (!initialized)
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	136 init_thread();
5493 ef93d51dab36 Support for various versions of the pthread draft. Guido van Rossum <guido@python.org> parents: 5395 diff changeset	137
ef93d51dab36 Support for various versions of the pthread draft. Guido van Rossum <guido@python.org> parents: 5395 diff changeset	138 success = pthread_create(&th,
ef93d51dab36 Support for various versions of the pthread draft. Guido van Rossum <guido@python.org> parents: 5395 diff changeset	139 #if defined(PY_PTHREAD_D4)
ef93d51dab36 Support for various versions of the pthread draft. Guido van Rossum <guido@python.org> parents: 5395 diff changeset	140 pthread_attr_default,
ef93d51dab36 Support for various versions of the pthread draft. Guido van Rossum <guido@python.org> parents: 5395 diff changeset	141 (pthread_startroutine_t)func,
ef93d51dab36 Support for various versions of the pthread draft. Guido van Rossum <guido@python.org> parents: 5395 diff changeset	142 (pthread_addr_t)arg
5599 b5e51ae9f832 DG/UX thread patches (Ross Andrus) Guido van Rossum <guido@python.org> parents: 5529 diff changeset	143 #elif defined(PY_PTHREAD_D6)
b5e51ae9f832 DG/UX thread patches (Ross Andrus) Guido van Rossum <guido@python.org> parents: 5529 diff changeset	144 pthread_attr_default,
b5e51ae9f832 DG/UX thread patches (Ross Andrus) Guido van Rossum <guido@python.org> parents: 5529 diff changeset	145 (void* ()_P((void )))func,
b5e51ae9f832 DG/UX thread patches (Ross Andrus) Guido van Rossum <guido@python.org> parents: 5529 diff changeset	146 arg
5493 ef93d51dab36 Support for various versions of the pthread draft. Guido van Rossum <guido@python.org> parents: 5395 diff changeset	147 #elif defined(PY_PTHREAD_D7)
ef93d51dab36 Support for various versions of the pthread draft. Guido van Rossum <guido@python.org> parents: 5395 diff changeset	148 pthread_attr_default,
ef93d51dab36 Support for various versions of the pthread draft. Guido van Rossum <guido@python.org> parents: 5395 diff changeset	149 func,
ef93d51dab36 Support for various versions of the pthread draft. Guido van Rossum <guido@python.org> parents: 5395 diff changeset	150 arg
ef93d51dab36 Support for various versions of the pthread draft. Guido van Rossum <guido@python.org> parents: 5395 diff changeset	151 #elif defined(PY_PTHREAD_STD)
ef93d51dab36 Support for various versions of the pthread draft. Guido van Rossum <guido@python.org> parents: 5395 diff changeset	152 (pthread_attr_t*)NULL,
ef93d51dab36 Support for various versions of the pthread draft. Guido van Rossum <guido@python.org> parents: 5395 diff changeset	153 (void* ()_P((void )))func,
ef93d51dab36 Support for various versions of the pthread draft. Guido van Rossum <guido@python.org> parents: 5395 diff changeset	154 (void *)arg
ef93d51dab36 Support for various versions of the pthread draft. Guido van Rossum <guido@python.org> parents: 5395 diff changeset	155 #endif
ef93d51dab36 Support for various versions of the pthread draft. Guido van Rossum <guido@python.org> parents: 5395 diff changeset	156 );
ef93d51dab36 Support for various versions of the pthread draft. Guido van Rossum <guido@python.org> parents: 5395 diff changeset	157
ef93d51dab36 Support for various versions of the pthread draft. Guido van Rossum <guido@python.org> parents: 5395 diff changeset	158 if (success >= 0) {
5599 b5e51ae9f832 DG/UX thread patches (Ross Andrus) Guido van Rossum <guido@python.org> parents: 5529 diff changeset	159 #if defined(PY_THREAD_D4) \|\| defined(PY_PTHREAD_D6) \|\| defined(PY_PTHREAD_D7)
5493 ef93d51dab36 Support for various versions of the pthread draft. Guido van Rossum <guido@python.org> parents: 5395 diff changeset	160 pthread_detach(&th);
ef93d51dab36 Support for various versions of the pthread draft. Guido van Rossum <guido@python.org> parents: 5395 diff changeset	161 #elif defined(PY_PTHREAD_STD)
5395 2c81d7d68ed3 Add detach call so threads are GC'ed. Guido van Rossum <guido@python.org> parents: 4994 diff changeset	162 pthread_detach(th);
5493 ef93d51dab36 Support for various versions of the pthread draft. Guido van Rossum <guido@python.org> parents: 5395 diff changeset	163 #endif
ef93d51dab36 Support for various versions of the pthread draft. Guido van Rossum <guido@python.org> parents: 5395 diff changeset	164 }
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	165 return success < 0 ? 0 : 1;
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	166 }
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	167
1651 7e5f97bab1e6 ceval.c: dict of local mapping is now a tuple Guido van Rossum <guido@python.org> parents: 1629 diff changeset	168 long get_thread_ident _P0()
7e5f97bab1e6 ceval.c: dict of local mapping is now a tuple Guido van Rossum <guido@python.org> parents: 1629 diff changeset	169 {
2097 e4588404fdff Alpha OSF/1 fix Guido van Rossum <guido@python.org> parents: 2062 diff changeset	170 pthread_t threadid;
1651 7e5f97bab1e6 ceval.c: dict of local mapping is now a tuple Guido van Rossum <guido@python.org> parents: 1629 diff changeset	171 if (!initialized)
7e5f97bab1e6 ceval.c: dict of local mapping is now a tuple Guido van Rossum <guido@python.org> parents: 1629 diff changeset	172 init_thread();
2097 e4588404fdff Alpha OSF/1 fix Guido van Rossum <guido@python.org> parents: 2062 diff changeset	173 /* Jump through some hoops for Alpha OSF/1 */
e4588404fdff Alpha OSF/1 fix Guido van Rossum <guido@python.org> parents: 2062 diff changeset	174 threadid = pthread_self();
e4588404fdff Alpha OSF/1 fix Guido van Rossum <guido@python.org> parents: 2062 diff changeset	175 return (long) (long ) &threadid;
1651 7e5f97bab1e6 ceval.c: dict of local mapping is now a tuple Guido van Rossum <guido@python.org> parents: 1629 diff changeset	176 }
7e5f97bab1e6 ceval.c: dict of local mapping is now a tuple Guido van Rossum <guido@python.org> parents: 1629 diff changeset	177
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	178 static void do_exit_thread _P1(no_cleanup, int no_cleanup)
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	179 {
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	180 dprintf(("exit_thread called\n"));
7982 a909a2869ac5 Make new gcc -Wall happy Guido van Rossum <guido@python.org> parents: 5700 diff changeset	181 if (!initialized) {
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	182 if (no_cleanup)
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	183 _exit(0);
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	184 else
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	185 exit(0);
7982 a909a2869ac5 Make new gcc -Wall happy Guido van Rossum <guido@python.org> parents: 5700 diff changeset	186 }
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	187 }
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	188
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	189 void exit_thread _P0()
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	190 {
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	191 do_exit_thread(0);
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	192 }
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	193
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	194 void _exit_thread _P0()
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	195 {
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	196 do_exit_thread(1);
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	197 }
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	198
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	199 #ifndef NO_EXIT_PROG
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	200 static void do_exit_prog _P2(status, int status, no_cleanup, int no_cleanup)
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	201 {
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	202 dprintf(("exit_prog(%d) called\n", status));
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	203 if (!initialized)
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	204 if (no_cleanup)
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	205 _exit(status);
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	206 else
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	207 exit(status);
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	208 }
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	209
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	210 void exit_prog _P1(status, int status)
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	211 {
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	212 do_exit_prog(status, 0);
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	213 }
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	214
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	215 void _exit_prog _P1(status, int status)
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	216 {
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	217 do_exit_prog(status, 1);
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	218 }
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	219 #endif /* NO_EXIT_PROG */
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	220
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	221 /*
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	222 * Lock support.
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	223 */
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	224 type_lock allocate_lock _P0()
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	225 {
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	226 pthread_lock *lock;
1629 4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	227 int status, error = 0;
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	228
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	229 dprintf(("allocate_lock called\n"));
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	230 if (!initialized)
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	231 init_thread();
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	232
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	233 lock = (pthread_lock *) malloc(sizeof(pthread_lock));
1629 4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	234 if (lock) {
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	235 lock->locked = 0;
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	236
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	237 status = pthread_mutex_init(&lock->mut,
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	238 pthread_mutexattr_default);
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	239 CHECK_STATUS("pthread_mutex_init");
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	240
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	241 status = pthread_cond_init(&lock->lock_released,
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	242 pthread_condattr_default);
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	243 CHECK_STATUS("pthread_cond_init");
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	244
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	245 if (error) {
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	246 free((void *)lock);
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	247 lock = 0;
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	248 }
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	249 }
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	250
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	251 dprintf(("allocate_lock() -> %lx\n", (long)lock));
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	252 return (type_lock) lock;
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	253 }
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	254
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	255 void free_lock _P1(lock, type_lock lock)
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	256 {
1629 4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	257 pthread_lock thelock = (pthread_lock )lock;
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	258 int status, error = 0;
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	259
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	260 dprintf(("free_lock(%lx) called\n", (long)lock));
1629 4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	261
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	262 status = pthread_mutex_destroy( &thelock->mut );
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	263 CHECK_STATUS("pthread_mutex_destroy");
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	264
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	265 status = pthread_cond_destroy( &thelock->lock_released );
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	266 CHECK_STATUS("pthread_cond_destroy");
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	267
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	268 free((void *)thelock);
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	269 }
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 int acquire_lock _P2(lock, type_lock lock, waitflag, int waitflag)
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	272 {
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	273 int success;
1629 4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	274 pthread_lock thelock = (pthread_lock )lock;
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	275 int status, error = 0;
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	276
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	277 dprintf(("acquire_lock(%lx, %d) called\n", (long)lock, waitflag));
1629 4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	278
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	279 status = pthread_mutex_lock( &thelock->mut );
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	280 CHECK_STATUS("pthread_mutex_lock[1]");
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	281 success = thelock->locked == 0;
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	282 if (success) thelock->locked = 1;
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	283 status = pthread_mutex_unlock( &thelock->mut );
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	284 CHECK_STATUS("pthread_mutex_unlock[1]");
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	285
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	286 if ( !success && waitflag ) {
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	287 /* continue trying until we get the lock */
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	288
1629 4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	289 /* mut must be locked by me -- part of the condition
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	290 * protocol */
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	291 status = pthread_mutex_lock( &thelock->mut );
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	292 CHECK_STATUS("pthread_mutex_lock[2]");
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	293 while ( thelock->locked ) {
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	294 status = pthread_cond_wait(&thelock->lock_released,
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	295 &thelock->mut);
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	296 CHECK_STATUS("pthread_cond_wait");
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	297 }
1629 4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	298 thelock->locked = 1;
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	299 status = pthread_mutex_unlock( &thelock->mut );
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	300 CHECK_STATUS("pthread_mutex_unlock[2]");
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	301 success = 1;
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	302 }
1629 4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	303 if (error) success = 0;
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	304 dprintf(("acquire_lock(%lx, %d) -> %d\n", (long)lock, waitflag, success));
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	305 return success;
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	306 }
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	307
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	308 void release_lock _P1(lock, type_lock lock)
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	309 {
1629 4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	310 pthread_lock thelock = (pthread_lock )lock;
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	311 int status, error = 0;
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	312
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	313 dprintf(("release_lock(%lx) called\n", (long)lock));
1629 4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	314
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	315 status = pthread_mutex_lock( &thelock->mut );
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	316 CHECK_STATUS("pthread_mutex_lock[3]");
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	317
1629 4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	318 thelock->locked = 0;
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	319
1629 4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	320 status = pthread_mutex_unlock( &thelock->mut );
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	321 CHECK_STATUS("pthread_mutex_unlock[3]");
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	322
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	323 /* wake up someone (anyone, if any) waiting on the lock */
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	324 status = pthread_cond_signal( &thelock->lock_released );
4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	325 CHECK_STATUS("pthread_cond_signal");
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	326 }
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 /*
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	329 * Semaphore support.
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	330 */
4994 9bc652e9f2b4 Working semaphore implementation by Sjoerd. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	331
9bc652e9f2b4 Working semaphore implementation by Sjoerd. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	332 struct semaphore {
9bc652e9f2b4 Working semaphore implementation by Sjoerd. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	333 pthread_mutex_t mutex;
9bc652e9f2b4 Working semaphore implementation by Sjoerd. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	334 pthread_cond_t cond;
9bc652e9f2b4 Working semaphore implementation by Sjoerd. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	335 int value;
9bc652e9f2b4 Working semaphore implementation by Sjoerd. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	336 };
1629 4121afd76d73 Tim's changes; removed some remaining non-functional ifdefs Guido van Rossum <guido@python.org> parents: 1628 diff changeset	337
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	338 type_sema allocate_sema _P1(value, int value)
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	339 {
4994 9bc652e9f2b4 Working semaphore implementation by Sjoerd. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	340 struct semaphore *sema;
9bc652e9f2b4 Working semaphore implementation by Sjoerd. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	341 int status, error = 0;
9bc652e9f2b4 Working semaphore implementation by Sjoerd. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	342
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	343 dprintf(("allocate_sema called\n"));
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	344 if (!initialized)
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	345 init_thread();
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	346
4994 9bc652e9f2b4 Working semaphore implementation by Sjoerd. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	347 sema = (struct semaphore *) malloc(sizeof(struct semaphore));
9bc652e9f2b4 Working semaphore implementation by Sjoerd. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	348 if (sema != NULL) {
9bc652e9f2b4 Working semaphore implementation by Sjoerd. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	349 sema->value = value;
9bc652e9f2b4 Working semaphore implementation by Sjoerd. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	350 status = pthread_mutex_init(&sema->mutex,
9bc652e9f2b4 Working semaphore implementation by Sjoerd. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	351 pthread_mutexattr_default);
9bc652e9f2b4 Working semaphore implementation by Sjoerd. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	352 CHECK_STATUS("pthread_mutex_init");
9bc652e9f2b4 Working semaphore implementation by Sjoerd. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	353 status = pthread_cond_init(&sema->cond,
9bc652e9f2b4 Working semaphore implementation by Sjoerd. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	354 pthread_condattr_default);
9bc652e9f2b4 Working semaphore implementation by Sjoerd. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	355 CHECK_STATUS("pthread_cond_init");
9bc652e9f2b4 Working semaphore implementation by Sjoerd. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	356 if (error) {
9bc652e9f2b4 Working semaphore implementation by Sjoerd. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	357 free((void *) sema);
9bc652e9f2b4 Working semaphore implementation by Sjoerd. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	358 sema = NULL;
9bc652e9f2b4 Working semaphore implementation by Sjoerd. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	359 }
9bc652e9f2b4 Working semaphore implementation by Sjoerd. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	360 }
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	361 dprintf(("allocate_sema() -> %lx\n", (long) sema));
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	362 return (type_sema) sema;
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	363 }
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	364
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	365 void free_sema _P1(sema, type_sema sema)
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	366 {
4994 9bc652e9f2b4 Working semaphore implementation by Sjoerd. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	367 int status, error = 0;
9bc652e9f2b4 Working semaphore implementation by Sjoerd. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	368 struct semaphore thesema = (struct semaphore ) sema;
9bc652e9f2b4 Working semaphore implementation by Sjoerd. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	369
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	370 dprintf(("free_sema(%lx) called\n", (long) sema));
4994 9bc652e9f2b4 Working semaphore implementation by Sjoerd. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	371 status = pthread_cond_destroy(&thesema->cond);
9bc652e9f2b4 Working semaphore implementation by Sjoerd. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	372 CHECK_STATUS("pthread_cond_destroy");
9bc652e9f2b4 Working semaphore implementation by Sjoerd. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	373 status = pthread_mutex_destroy(&thesema->mutex);
9bc652e9f2b4 Working semaphore implementation by Sjoerd. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	374 CHECK_STATUS("pthread_mutex_destroy");
9bc652e9f2b4 Working semaphore implementation by Sjoerd. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	375 free((void *) thesema);
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	376 }
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	377
4371 c277ee8c669c Sjoerd's thread changes (including down_sema typo fix). Guido van Rossum <guido@python.org> parents: 3965 diff changeset	378 int down_sema _P2(sema, type_sema sema, waitflag, int waitflag)
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	379 {
4994 9bc652e9f2b4 Working semaphore implementation by Sjoerd. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	380 int status, error = 0, success;
9bc652e9f2b4 Working semaphore implementation by Sjoerd. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	381 struct semaphore thesema = (struct semaphore ) sema;
9bc652e9f2b4 Working semaphore implementation by Sjoerd. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	382
4371 c277ee8c669c Sjoerd's thread changes (including down_sema typo fix). Guido van Rossum <guido@python.org> parents: 3965 diff changeset	383 dprintf(("down_sema(%lx, %d) called\n", (long) sema, waitflag));
4994 9bc652e9f2b4 Working semaphore implementation by Sjoerd. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	384 status = pthread_mutex_lock(&thesema->mutex);
9bc652e9f2b4 Working semaphore implementation by Sjoerd. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	385 CHECK_STATUS("pthread_mutex_lock");
9bc652e9f2b4 Working semaphore implementation by Sjoerd. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	386 if (waitflag) {
9bc652e9f2b4 Working semaphore implementation by Sjoerd. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	387 while (!error && thesema->value <= 0) {
9bc652e9f2b4 Working semaphore implementation by Sjoerd. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	388 status = pthread_cond_wait(&thesema->cond,
9bc652e9f2b4 Working semaphore implementation by Sjoerd. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	389 &thesema->mutex);
9bc652e9f2b4 Working semaphore implementation by Sjoerd. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	390 CHECK_STATUS("pthread_cond_wait");
9bc652e9f2b4 Working semaphore implementation by Sjoerd. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	391 }
9bc652e9f2b4 Working semaphore implementation by Sjoerd. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	392 }
9bc652e9f2b4 Working semaphore implementation by Sjoerd. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	393 if (error)
9bc652e9f2b4 Working semaphore implementation by Sjoerd. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	394 success = 0;
9bc652e9f2b4 Working semaphore implementation by Sjoerd. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	395 else if (thesema->value > 0) {
9bc652e9f2b4 Working semaphore implementation by Sjoerd. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	396 thesema->value--;
9bc652e9f2b4 Working semaphore implementation by Sjoerd. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	397 success = 1;
9bc652e9f2b4 Working semaphore implementation by Sjoerd. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	398 }
9bc652e9f2b4 Working semaphore implementation by Sjoerd. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	399 else
9bc652e9f2b4 Working semaphore implementation by Sjoerd. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	400 success = 0;
9bc652e9f2b4 Working semaphore implementation by Sjoerd. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	401 status = pthread_mutex_unlock(&thesema->mutex);
9bc652e9f2b4 Working semaphore implementation by Sjoerd. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	402 CHECK_STATUS("pthread_mutex_unlock");
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	403 dprintf(("down_sema(%lx) return\n", (long) sema));
4994 9bc652e9f2b4 Working semaphore implementation by Sjoerd. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	404 return success;
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	405 }
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	406
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	407 void up_sema _P1(sema, type_sema sema)
a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	408 {
4994 9bc652e9f2b4 Working semaphore implementation by Sjoerd. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	409 int status, error = 0;
9bc652e9f2b4 Working semaphore implementation by Sjoerd. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	410 struct semaphore thesema = (struct semaphore ) sema;
9bc652e9f2b4 Working semaphore implementation by Sjoerd. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	411
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	412 dprintf(("up_sema(%lx)\n", (long) sema));
4994 9bc652e9f2b4 Working semaphore implementation by Sjoerd. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	413 status = pthread_mutex_lock(&thesema->mutex);
9bc652e9f2b4 Working semaphore implementation by Sjoerd. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	414 CHECK_STATUS("pthread_mutex_lock");
9bc652e9f2b4 Working semaphore implementation by Sjoerd. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	415 thesema->value++;
9bc652e9f2b4 Working semaphore implementation by Sjoerd. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	416 status = pthread_cond_signal(&thesema->cond);
9bc652e9f2b4 Working semaphore implementation by Sjoerd. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	417 CHECK_STATUS("pthread_cond_signal");
9bc652e9f2b4 Working semaphore implementation by Sjoerd. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	418 status = pthread_mutex_unlock(&thesema->mutex);
9bc652e9f2b4 Working semaphore implementation by Sjoerd. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	419 CHECK_STATUS("pthread_mutex_unlock");
1628 a9dd2e1ea5c9 Split thread.c into a number of system-specific files. Guido van Rossum <guido@python.org> parents: diff changeset	420 }

Mercurial > cpython-lru_cache-weakref

annotate Python/thread_pthread.h @ 8358:da4bdceeaad7 legacy-trunk