[fio.git] / mutex.h

#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
Commit	Line	Data
	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
	9	struct fio_mutex {
	10	pthread_mutex_t lock;
	11	pthread_cond_t cond;
	12	int value;
	13	int waiters;
	14	int magic;
	15	};
	16
	17	struct fio_rwlock {
	18	pthread_rwlock_t lock;
	19	int magic;
	20	};
	21
	22	enum {
	23	FIO_MUTEX_LOCKED = 0,
	24	FIO_MUTEX_UNLOCKED = 1,
	25	};
	26
	27	extern struct fio_mutex *fio_mutex_init(int);
	28	extern void fio_mutex_remove(struct fio_mutex *);
	29	extern void fio_mutex_up(struct fio_mutex *);
	30	extern void fio_mutex_down(struct fio_mutex *);
	31	extern int fio_mutex_down_timeout(struct fio_mutex *, unsigned int);
	32
	33	extern void fio_rwlock_read(struct fio_rwlock *);
	34	extern void fio_rwlock_write(struct fio_rwlock *);
	35	extern void fio_rwlock_unlock(struct fio_rwlock *);
	36	extern struct fio_rwlock *fio_rwlock_init(void);
	37	extern void fio_rwlock_remove(struct fio_rwlock *);
	38
	39	#endif