lib/cpp/src/concurrency/Mutex.cc

#include "Mutex.h"

#include <assert.h>
#include <pthread.h>

/** Implementation of Mutex class using POSIX mutex

    @author marc
    @version $Id:$ */

namespace facebook { namespace thrift { namespace concurrency { 

class Mutex::impl {
public:
  impl() : initialized(false) {
    assert(pthread_mutex_init(&_pthread_mutex, NULL) == 0);
    initialized = true;
  }

  ~impl() {
    if(initialized) {
      initialized = false;
      assert(pthread_mutex_destroy(&_pthread_mutex) == 0);
    }
  }

  void lock() const {pthread_mutex_lock(&_pthread_mutex);}

  void unlock() const {pthread_mutex_unlock(&_pthread_mutex);}

private:
  mutable pthread_mutex_t _pthread_mutex;
  mutable bool initialized;
};

Mutex::Mutex() : _impl(new Mutex::impl()) {}

void Mutex::lock() const {_impl->lock();}

void Mutex::unlock() const {_impl->unlock();}

}}} // facebook::thrift::concurrency