blob: 4f3486df7a3b01163515cd548678445d7e40b924 [file] [log] [blame]
#ifndef FIO_MUTEX_H
#define FIO_MUTEX_H
#include <pthread.h>
#define FIO_MUTEX_MAGIC 0x4d555445U
#define FIO_RWLOCK_MAGIC 0x52574c4fU
struct fio_mutex {
pthread_mutex_t lock;
pthread_cond_t cond;
int value;
int waiters;
int magic;
};
struct fio_rwlock {
pthread_rwlock_t lock;
int magic;
};
enum {
FIO_MUTEX_LOCKED = 0,
FIO_MUTEX_UNLOCKED = 1,
};
extern struct fio_mutex *fio_mutex_init(int);
extern void fio_mutex_remove(struct fio_mutex *);
extern void fio_mutex_up(struct fio_mutex *);
extern void fio_mutex_down(struct fio_mutex *);
extern int fio_mutex_down_timeout(struct fio_mutex *, unsigned int);
extern void fio_rwlock_read(struct fio_rwlock *);
extern void fio_rwlock_write(struct fio_rwlock *);
extern void fio_rwlock_unlock(struct fio_rwlock *);
extern struct fio_rwlock *fio_rwlock_init(void);
extern void fio_rwlock_remove(struct fio_rwlock *);
#endif