mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-26 23:10:06 +00:00
eb0a3d0cab
* pthread_barrier_wait.c: ...here. * sysdeps/pthread/pthread_cond_broadcast.c: Move to... * pthread_cond_broadcast.c: ...here. * sysdeps/pthread/pthread_cond_signal.c: Move to... * pthread_cond_signal.c: ...here. * sysdeps/pthread/pthread_cond_timedwait.c: Move to... * pthread_cond_timedwait.c: ...here. * sysdeps/pthread/pthread_cond_wait.c: Move to... * pthread_cond_wait.c: ...here. * sysdeps/pthread/pthread_once.c: Move to... * pthread_once.c: ...here. * sysdeps/pthread/pthread_rwlock_rdlock.c: Move to... * pthread_rwlock_rdlock.c: ...here. * sysdeps/pthread/pthread_rwlock_timedrdlock.c: Move to... * pthread_rwlock_timedrdlock.c: ...here. * sysdeps/pthread/pthread_rwlock_timedwrlock.c: Move to... * pthread_rwlock_timedwrlock.c: ...here. * sysdeps/pthread/pthread_rwlock_unlock.c: Move to... * pthread_rwlock_unlock.c: ...here. * sysdeps/pthread/pthread_rwlock_wrlock.c: Move to... * pthread_rwlock_wrlock.c: ...here. * sysdeps/pthread/pthread_spin_destroy.c: Move to... * pthread_spin_destroy.c: ...here. * sysdeps/pthread/pthread_spin_init.c: Move to... * pthread_spin_init.c: ...here. * sysdeps/pthread/pthread_spin_unlock.c: Move to... * pthread_spin_unlock.c: ...here. * sysdeps/pthread/pthread_getcpuclockid.c: Move to... * pthread_getcpuclockid.c: ...here.
62 lines
1.8 KiB
C
62 lines
1.8 KiB
C
/* Copyright (C) 2003, 2004 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
Contributed by Martin Schwidefsky <schwidefsky@de.ibm.com>, 2003.
|
|
|
|
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 <endian.h>
|
|
#include <errno.h>
|
|
#include <sysdep.h>
|
|
#include <lowlevellock.h>
|
|
#include <pthread.h>
|
|
#include <pthreadP.h>
|
|
|
|
#include <shlib-compat.h>
|
|
#include <kernel-features.h>
|
|
|
|
|
|
int
|
|
__pthread_cond_signal (cond)
|
|
pthread_cond_t *cond;
|
|
{
|
|
/* Make sure we are alone. */
|
|
lll_mutex_lock (cond->__data.__lock);
|
|
|
|
/* Are there any waiters to be woken? */
|
|
if (cond->__data.__total_seq > cond->__data.__wakeup_seq)
|
|
{
|
|
/* Yes. Mark one of them as woken. */
|
|
++cond->__data.__wakeup_seq;
|
|
++cond->__data.__futex;
|
|
|
|
/* Wake one. */
|
|
if (! __builtin_expect (lll_futex_wake_unlock (&cond->__data.__futex, 1,
|
|
1, &cond->__data.__lock),
|
|
0))
|
|
return 0;
|
|
|
|
lll_futex_wake (&cond->__data.__futex, 1);
|
|
}
|
|
|
|
/* We are done. */
|
|
lll_mutex_unlock (cond->__data.__lock);
|
|
|
|
return 0;
|
|
}
|
|
|
|
versioned_symbol (libpthread, __pthread_cond_signal, pthread_cond_signal,
|
|
GLIBC_2_3_2);
|