blob: 129fb0466b7aa4f43c025edacefa2323166e7c88 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
|
/* Broadcast a condition. Generic version.
Copyright (C) 2000-2018 Free Software Foundation, Inc.
This file is part of the GNU C Library.
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, see
<http://www.gnu.org/licenses/>. */
#include <pthread.h>
#include <pt-internal.h>
/* Unblock all threads that are blocked on condition variable COND. */
int
__pthread_cond_broadcast (pthread_cond_t *cond)
{
struct __pthread *wakeup;
__pthread_spin_lock (&cond->__lock);
while ((wakeup = cond->__queue))
{
__pthread_dequeue (wakeup);
__pthread_spin_unlock (&cond->__lock);
/* Wake it up without spin held, so it may have a chance to really
preempt us */
__pthread_wakeup (wakeup);
__pthread_spin_lock (&cond->__lock);
}
__pthread_spin_unlock (&cond->__lock);
return 0;
}
strong_alias (__pthread_cond_broadcast, pthread_cond_broadcast);
|
