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gerrit-public.fairphone.software / platform / external / fio / 7d7803fa331bec4b53edf7bfa3c70ccd7f2920d9 / . / mutex.h
blob: 6fdf7c6dabceaa456d17f66040be3894c61556c8 [file] [log] [blame]
Jens Axboe07739b52007-03-08 20:25:46 +0100[diff] [blame]1#ifndef FIO_MUTEX_H
2#define FIO_MUTEX_H
3
4#include <pthread.h>
5
Jens Axboecdd18ad2008-02-27 18:58:00 +0100[diff] [blame]6struct fio_mutex {
Jens Axboe07739b52007-03-08 20:25:46 +0100[diff] [blame]7 pthread_mutex_t lock;
8 pthread_cond_t cond;
Jens Axboe64d4d312008-03-03 10:36:27 +0100[diff] [blame]9 int value;
Jens Axboe4d4e80f2008-03-04 10:18:56 +0100[diff] [blame]10 int waiters;
Jens Axboe07739b52007-03-08 20:25:46 +0100[diff] [blame]11};
12
Jens Axboe521da522012-08-02 11:21:36 +0200[diff] [blame]13enum {
14 FIO_MUTEX_LOCKED = 0,
15 FIO_MUTEX_UNLOCKED = 1,
16};
17
Jens Axboecdd18ad2008-02-27 18:58:00 +0100[diff] [blame]18extern struct fio_mutex *fio_mutex_init(int);
19extern void fio_mutex_remove(struct fio_mutex *);
Jens Axboeaf4bab52008-03-01 15:12:48 +0100[diff] [blame]20extern void fio_mutex_down(struct fio_mutex *);
Jens Axboe656b1392009-07-01 23:02:10 +0200[diff] [blame]21extern int fio_mutex_down_timeout(struct fio_mutex *, unsigned int);
Jens Axboe64d4d312008-03-03 10:36:27 +0100[diff] [blame]22extern void fio_mutex_down_read(struct fio_mutex *);
23extern void fio_mutex_down_write(struct fio_mutex *);
Jens Axboeaf4bab52008-03-01 15:12:48 +0100[diff] [blame]24extern void fio_mutex_up(struct fio_mutex *);
Jens Axboe64d4d312008-03-03 10:36:27 +0100[diff] [blame]25extern void fio_mutex_up_read(struct fio_mutex *);
26extern void fio_mutex_up_write(struct fio_mutex *);
Jens Axboe07739b52007-03-08 20:25:46 +0100[diff] [blame]27
Jens Axboe9c5b5292008-03-03 11:08:19 +0100[diff] [blame]28static inline struct fio_mutex *fio_mutex_rw_init(void)
29{
30 return fio_mutex_init(0);
31}
32
Jens Axboe4d4e80f2008-03-04 10:18:56 +0100[diff] [blame]33static inline int fio_mutex_getval(struct fio_mutex *mutex)
34{
35 return mutex->value;
36}
37
Jens Axboe07739b52007-03-08 20:25:46 +0100[diff] [blame]38#endif