1#ifndef FIO_MUTEX_H 2#define FIO_MUTEX_H 3 4#include <pthread.h> 5 6#define FIO_MUTEX_MAGIC 0x4d555445U 7#define FIO_RWLOCK_MAGIC 0x52574c4fU 8 9struct fio_mutex { 10 pthread_mutex_t lock; 11 pthread_cond_t cond; 12 int value; 13 int waiters; 14 int magic; 15}; 16 17struct fio_rwlock { 18 pthread_rwlock_t lock; 19 int magic; 20}; 21 22enum { 23 FIO_MUTEX_LOCKED = 0, 24 FIO_MUTEX_UNLOCKED = 1, 25}; 26 27extern int __fio_mutex_init(struct fio_mutex *, int); 28extern struct fio_mutex *fio_mutex_init(int); 29extern void fio_mutex_remove(struct fio_mutex *); 30extern void fio_mutex_up(struct fio_mutex *); 31extern void fio_mutex_down(struct fio_mutex *); 32extern int fio_mutex_down_trylock(struct fio_mutex *); 33extern int fio_mutex_down_timeout(struct fio_mutex *, unsigned int); 34 35extern void fio_rwlock_read(struct fio_rwlock *); 36extern void fio_rwlock_write(struct fio_rwlock *); 37extern void fio_rwlock_unlock(struct fio_rwlock *); 38extern struct fio_rwlock *fio_rwlock_init(void); 39extern void fio_rwlock_remove(struct fio_rwlock *); 40 41#endif 42