mirror of
git://sourceware.org/git/glibc.git
synced 2024-12-09 04:11:27 +08:00
e42a990ecc
* sysdeps/pthread/pthread_cond_wait.c (__pthread_cond_wait): Don't store mutex address if the current value is ~0l. * sysdeps/pthread/pthread_cond_timedwait.c (__pthread_cond_timedwait): Likewise. * sysdeps/pthread/pthread_cond_broadcast.c (__pthread_cond_broadcast): Don't use requeue for pshared condvars. * sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S (__pthread_cond_wait): Don't store mutex address if the current value is ~0l. * sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S (__pthread_cond_timedwait): Likewise. * sysdeps/unix/sysv/linux/x86_64/pthread_cond_broadcast.S (__pthread_cond_broadcast): Don't use requeue for pshared condvars. * pthread_cond_init.c (__pthread_cond_init): Initialize __mutex element with ~0l for pshared condvars, with NULL otherwise. * sysdeps/unix/sysv/linux/i386/i486/pthread_cond_wait.S (__pthread_cond_wait): Don't store mutex address if the current value is ~0l. * sysdeps/unix/sysv/linux/i386/i486/pthread_cond_timedwait.S (__pthread_cond_timedwait): Likewise. * sysdeps/unix/sysv/linux/i386/i486/pthread_cond_broadcast.S (__pthread_cond_broadcast): Don't use requeue for pshared condvars.
46 lines
1.7 KiB
C
46 lines
1.7 KiB
C
/* Copyright (C) 2002, 2003 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
The GNU C Library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, write to the Free
|
|
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
|
02111-1307 USA. */
|
|
|
|
#include <shlib-compat.h>
|
|
#include "pthreadP.h"
|
|
|
|
|
|
int
|
|
__pthread_cond_init (cond, cond_attr)
|
|
pthread_cond_t *cond;
|
|
const pthread_condattr_t *cond_attr;
|
|
{
|
|
/* Note that we don't need the PSHARED information from COND-ATTR.
|
|
Conditional variables are always usable in multiple processes. */
|
|
struct pthread_condattr *icond_attr = (struct pthread_condattr *) cond_attr;
|
|
|
|
cond->__data.__lock = LLL_MUTEX_LOCK_INITIALIZER;
|
|
cond->__data.__clock = (icond_attr == NULL
|
|
? CLOCK_REALTIME : (icond_attr->value & 0xfe) >> 1);
|
|
cond->__data.__total_seq = 0;
|
|
cond->__data.__wakeup_seq = 0;
|
|
cond->__data.__woken_seq = 0;
|
|
cond->__data.__mutex = (icond_attr == NULL || (icond_attr->value & 1) == 0
|
|
? NULL : (void *) ~0l);
|
|
|
|
return 0;
|
|
}
|
|
versioned_symbol (libpthread, __pthread_cond_init,
|
|
pthread_cond_init, GLIBC_2_3_2);
|