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gerrit-public.fairphone.software / fp2-dev / platform / external / fio / 656b1393d43f9f22738404582ea14dec956aea83 / . / mutex.h
blob: ac79dc63a6fe536f5acecc9ffd35d34bd95813b5 [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
Jens Axboecdd18ad2008-02-27 18:58:00 +0100[diff] [blame]12 int mutex_fd;
Jens Axboe07739b52007-03-08 20:25:46 +0100[diff] [blame]13};
14
Jens Axboecdd18ad2008-02-27 18:58:00 +0100[diff] [blame]15extern struct fio_mutex *fio_mutex_init(int);
16extern void fio_mutex_remove(struct fio_mutex *);
Jens Axboeaf4bab52008-03-01 15:12:48 +0100[diff] [blame]17extern void fio_mutex_down(struct fio_mutex *);
Jens Axboe656b1392009-07-01 23:02:10 +0200[diff] [blame^]18extern int fio_mutex_down_timeout(struct fio_mutex *, unsigned int);
Jens Axboe64d4d312008-03-03 10:36:27 +0100[diff] [blame]19extern void fio_mutex_down_read(struct fio_mutex *);
20extern void fio_mutex_down_write(struct fio_mutex *);
Jens Axboeaf4bab52008-03-01 15:12:48 +0100[diff] [blame]21extern void fio_mutex_up(struct fio_mutex *);
Jens Axboe64d4d312008-03-03 10:36:27 +0100[diff] [blame]22extern void fio_mutex_up_read(struct fio_mutex *);
23extern void fio_mutex_up_write(struct fio_mutex *);
Jens Axboe07739b52007-03-08 20:25:46 +0100[diff] [blame]24
Jens Axboe9c5b5292008-03-03 11:08:19 +0100[diff] [blame]25static inline struct fio_mutex *fio_mutex_rw_init(void)
26{
27 return fio_mutex_init(0);
28}
29
Jens Axboe4d4e80f2008-03-04 10:18:56 +0100[diff] [blame]30static inline int fio_mutex_getval(struct fio_mutex *mutex)
31{
32 return mutex->value;
33}
34
Jens Axboe07739b52007-03-08 20:25:46 +0100[diff] [blame]35#endif