tools/perf/util/rwsem.h

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