rpc/slock.h

   1 #ifndef __SCOPED_LOCK__
   2 #define __SCOPED_LOCK__
   3
   4 #include <pthread.h>
   5 #include "lang/verify.h"
   6 struct ScopedLock {
   7         private:
   8                 pthread_mutex_t *m_;
   9         public:
  10                 ScopedLock(pthread_mutex_t *m): m_(m) {
  11                         VERIFY(pthread_mutex_lock(m_)==0);
  12                 }
  13                 ~ScopedLock() {
  14                         VERIFY(pthread_mutex_unlock(m_)==0);
  15                 }
  16 };
  17 struct ScopedUnlock {
  18         private:
  19                 pthread_mutex_t *m_;
  20         public:
  21                 ScopedUnlock(pthread_mutex_t *m): m_(m) {
  22                         VERIFY(pthread_mutex_unlock(m_)==0);
  23                 }
  24                 ~ScopedUnlock() {
  25                         VERIFY(pthread_mutex_lock(m_)==0);
  26                 }
  27 };
  28 #endif  /*__SCOPED_LOCK__*/