53 lines
1.6 KiB
C
53 lines
1.6 KiB
C
/*
|
|
* Copyright 2008-2013 Various Authors
|
|
* Copyright 2004 Timo Hirvonen
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License as
|
|
* published by the Free Software Foundation; either version 2 of the
|
|
* License, or (at your option) any later version.
|
|
*
|
|
* This program 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
|
|
* General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#ifndef CMUS_LOCKING_H
|
|
#define CMUS_LOCKING_H
|
|
|
|
#include <pthread.h>
|
|
#include <stdatomic.h>
|
|
|
|
struct fifo_mutex {
|
|
struct fifo_waiter * _Atomic tail;
|
|
struct fifo_waiter *head;
|
|
pthread_mutex_t mutex;
|
|
};
|
|
|
|
extern pthread_t main_thread;
|
|
|
|
#define CMUS_MUTEX_INITIALIZER PTHREAD_MUTEX_INITIALIZER
|
|
#define CMUS_COND_INITIALIZER PTHREAD_COND_INITIALIZER
|
|
#define CMUS_RWLOCK_INITIALIZER PTHREAD_RWLOCK_INITIALIZER
|
|
|
|
#define FIFO_MUTEX_INITIALIZER { \
|
|
.mutex = PTHREAD_MUTEX_INITIALIZER, \
|
|
.tail = ATOMIC_VAR_INIT(NULL), \
|
|
}
|
|
|
|
void cmus_mutex_lock(pthread_mutex_t *mutex);
|
|
void cmus_mutex_unlock(pthread_mutex_t *mutex);
|
|
void cmus_rwlock_rdlock(pthread_rwlock_t *lock);
|
|
void cmus_rwlock_wrlock(pthread_rwlock_t *lock);
|
|
void cmus_rwlock_unlock(pthread_rwlock_t *lock);
|
|
|
|
void fifo_mutex_lock(struct fifo_mutex *fifo);
|
|
void fifo_mutex_unlock(struct fifo_mutex *fifo);
|
|
void fifo_mutex_yield(struct fifo_mutex *fifo);
|
|
|
|
#endif
|