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
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
|
/* 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_timedwait_2_0 (cond, mutex, abstime)
pthread_cond_2_0_t *cond;
pthread_mutex_t *mutex;
const struct timespec *abstime;
{
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_acq (&cond->cond, newcond, NULL) != 0)
/* Somebody else just initialized the condvar. */
free (newcond);
}
return __pthread_cond_timedwait (cond->cond, mutex, abstime);
}
compat_symbol (libpthread, __pthread_cond_timedwait_2_0,
pthread_cond_timedwait, GLIBC_2_0);
#endif
|
