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glibc  2.9
pthread_cond_init.c
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00001 /* Copyright (C) 2002, 2003, 2004, 2005, 2007, 2008
00002    Free Software Foundation, Inc.
00003    This file is part of the GNU C Library.
00004    Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
00005 
00006    The GNU C Library is free software; you can redistribute it and/or
00007    modify it under the terms of the GNU Lesser General Public
00008    License as published by the Free Software Foundation; either
00009    version 2.1 of the License, or (at your option) any later version.
00010 
00011    The GNU C Library is distributed in the hope that it will be useful,
00012    but WITHOUT ANY WARRANTY; without even the implied warranty of
00013    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00014    Lesser General Public License for more details.
00015 
00016    You should have received a copy of the GNU Lesser General Public
00017    License along with the GNU C Library; if not, write to the Free
00018    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
00019    02111-1307 USA.  */
00020 
00021 #include <shlib-compat.h>
00022 #include "pthreadP.h"
00023 
00024 
00025 int
00026 __pthread_cond_init (cond, cond_attr)
00027      pthread_cond_t *cond;
00028      const pthread_condattr_t *cond_attr;
00029 {
00030   struct pthread_condattr *icond_attr = (struct pthread_condattr *) cond_attr;
00031 
00032   cond->__data.__lock = LLL_LOCK_INITIALIZER;
00033   cond->__data.__futex = 0;
00034   cond->__data.__nwaiters = (icond_attr != NULL
00035                           ? ((icond_attr->value >> 1)
00036                             & ((1 << COND_NWAITERS_SHIFT) - 1))
00037                           : CLOCK_REALTIME);
00038   cond->__data.__total_seq = 0;
00039   cond->__data.__wakeup_seq = 0;
00040   cond->__data.__woken_seq = 0;
00041   cond->__data.__mutex = (icond_attr == NULL || (icond_attr->value & 1) == 0
00042                        ? NULL : (void *) ~0l);
00043   cond->__data.__broadcast_seq = 0;
00044 
00045   return 0;
00046 }
00047 versioned_symbol (libpthread, __pthread_cond_init,
00048                 pthread_cond_init, GLIBC_2_3_2);