sortix-mirror/libpthread/pthread_mutex_init.c++

45 lines
1.3 KiB
C++

/*******************************************************************************
Copyright(C) Jonas 'Sortie' Termansen 2013, 2014.
This file is part of Sortix libpthread.
Sortix libpthread 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 3 of the License, or (at your
option) any later version.
Sortix libpthread 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 Sortix libpthread. If not, see <http://www.gnu.org/licenses/>.
pthread_mutex_init.c++
Initializes a mutex.
*******************************************************************************/
#include <pthread.h>
extern "C"
int pthread_mutex_init(pthread_mutex_t* restrict mutex,
const pthread_mutexattr_t* restrict attr)
{
pthread_mutexattr_t default_attr;
if ( !attr )
{
pthread_mutexattr_init(&default_attr);
attr = &default_attr;
}
mutex->lock = 0;
mutex->type = attr->type;
mutex->owner = 0;
mutex->recursion = 0;
return 0;
}