1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef __SND_SEQ_LOCK_H
3#define __SND_SEQ_LOCK_H
4
5#include <linux/sched.h>
6
7typedef atomic_t snd_use_lock_t;
8
9/* initialize lock */
10#define snd_use_lock_init(lockp) atomic_set(lockp, 0)
11
12/* increment lock */
13#define snd_use_lock_use(lockp) atomic_inc(lockp)
14
15/* release lock */
16#define snd_use_lock_free(lockp) atomic_dec(lockp)
17
18/* wait until all locks are released */
19void snd_use_lock_sync_helper(snd_use_lock_t *lock, const char *file, int line);
20#define snd_use_lock_sync(lockp) snd_use_lock_sync_helper(lockp, __BASE_FILE__, __LINE__)
21
22#endif /* __SND_SEQ_LOCK_H */
23