sortix-mirror/libc/pthread/pthread_cond_init.c

39 lines
1.2 KiB
C

/*
* Copyright (c) 2013, 2014, 2021 Jonas 'Sortie' Termansen.
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
* pthread/pthread_cond_init.c
* Initializes a condition variable.
*/
#include <pthread.h>
int pthread_cond_init(pthread_cond_t* restrict cond,
const pthread_condattr_t* restrict attr)
{
pthread_condattr_t default_attr;
if ( !attr )
{
pthread_condattr_init(&default_attr);
attr = &default_attr;
}
pthread_mutex_init(&cond->lock, NULL);
cond->first = NULL;
cond->last = NULL;
cond->clock = attr->clock;
return 0;
}