1 /* Copyright (C) 2002, 2003, 2004, 2005, 2007, 2008
2 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4 Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
5
6 The GNU C Library is free software; you can redistribute it and/or
7 modify it under the terms of the GNU Lesser General Public
8 License as published by the Free Software Foundation; either
9 version 2.1 of the License, or (at your option) any later version.
10
11 The GNU C Library is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 Lesser General Public License for more details.
15
16 You should have received a copy of the GNU Lesser General Public
17 License along with the GNU C Library; if not, see
18 <http://www.gnu.org/licenses/>. */
19
20 #include "pthreadP.h"
21
22
23 int
24 attribute_protected
__pthread_cond_init(pthread_cond_t * cond,const pthread_condattr_t * cond_attr)25 __pthread_cond_init (
26 pthread_cond_t *cond,
27 const pthread_condattr_t *cond_attr)
28 {
29 struct pthread_condattr *icond_attr = (struct pthread_condattr *) cond_attr;
30
31 cond->__data.__lock = LLL_LOCK_INITIALIZER;
32 cond->__data.__futex = 0;
33 cond->__data.__nwaiters = (icond_attr != NULL
34 ? ((icond_attr->value >> 1)
35 & ((1 << COND_NWAITERS_SHIFT) - 1))
36 : CLOCK_REALTIME);
37 cond->__data.__total_seq = 0;
38 cond->__data.__wakeup_seq = 0;
39 cond->__data.__woken_seq = 0;
40 cond->__data.__mutex = (icond_attr == NULL || (icond_attr->value & 1) == 0
41 ? NULL : (void *) ~0l);
42 cond->__data.__broadcast_seq = 0;
43
44 return 0;
45 }
46 weak_alias(__pthread_cond_init, pthread_cond_init)
47