mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-06 05:10:05 +00:00
5a3ab2fc18
2003-03-21 Ulrich Drepper <drepper@redhat.com> * cancellation.c: Adjust for new form of compare&exchange macros. * cleanup_defer.c: Likewise. * init.c: Likewise. * libc-cancellation.c: Likewise. * old_pthread_cond_broadcast.c: Likewise. * old_pthread_cond_signal.c: Likewise. * old_pthread_cond_timedwait.c: Likewise. * old_pthread_cond_wait.c: Likewise. * pthread_cancel.c: Likewise. * pthread_create.c: Likewise. * pthread_detach.c: Likewise. * pthread_join.c: Likewise. * pthread_key_delete.c: Likewise. * pthread_setcancelstate.c: Likewise. * pthread_setcanceltype.c: Likewise. * pthread_timedjoin.c: Likewise. * pthread_tryjoin.c: Likewise. * sysdeps/pthread/createthread.c: Likewise.
59 lines
1.8 KiB
C
59 lines
1.8 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 <errno.h>
|
|
#include <stdlib.h>
|
|
#include "pthreadP.h"
|
|
#include <atomic.h>
|
|
#include <shlib-compat.h>
|
|
|
|
|
|
#if SHLIB_COMPAT(libpthread, GLIBC_2_0, GLIBC_2_3_2)
|
|
int
|
|
__pthread_cond_signal_2_0 (cond)
|
|
pthread_cond_2_0_t *cond;
|
|
{
|
|
if (cond->cond == NULL)
|
|
{
|
|
pthread_cond_t *newcond;
|
|
|
|
#if LLL_MUTEX_LOCK_INITIALIZER == 0
|
|
newcond = (pthread_cond_t *) calloc (sizeof (pthread_cond_t), 1);
|
|
if (newcond == NULL)
|
|
return ENOMEM;
|
|
#else
|
|
newcond = (pthread_cond_t *) malloc (sizeof (pthread_cond_t));
|
|
if (newcond == NULL)
|
|
return ENOMEM;
|
|
|
|
/* Initialize the condvar. */
|
|
(void) pthread_cond_init (newcond, NULL);
|
|
#endif
|
|
|
|
if (atomic_compare_and_exchange_bool_acq (&cond->cond, newcond, NULL))
|
|
/* Somebody else just initialized the condvar. */
|
|
free (newcond);
|
|
}
|
|
|
|
return __pthread_cond_signal (cond->cond);
|
|
}
|
|
compat_symbol (libpthread, __pthread_cond_signal_2_0, pthread_cond_signal,
|
|
GLIBC_2_0);
|
|
#endif
|