1#ifndef _PERF_RWSEM_H
 2#define _PERF_RWSEM_H
 3
 4#include <pthread.h>
 5
 6struct rw_semaphore {
 7	pthread_rwlock_t lock;
 8};
 9
10int init_rwsem(struct rw_semaphore *sem);
11int exit_rwsem(struct rw_semaphore *sem);
12
13int down_read(struct rw_semaphore *sem);
14int up_read(struct rw_semaphore *sem);
15
16int down_write(struct rw_semaphore *sem);
17int up_write(struct rw_semaphore *sem);
18
19#endif /* _PERF_RWSEM_H */

 1#ifndef _PERF_RWSEM_H
 2#define _PERF_RWSEM_H
 3
 4#include <pthread.h>
 5
 6struct rw_semaphore {
 7	pthread_rwlock_t lock;
 8};
 9
10int init_rwsem(struct rw_semaphore *sem);
11int exit_rwsem(struct rw_semaphore *sem);
12
13int down_read(struct rw_semaphore *sem);
14int up_read(struct rw_semaphore *sem);
15
16int down_write(struct rw_semaphore *sem);
17int up_write(struct rw_semaphore *sem);
18
19#endif /* _PERF_RWSEM_H */