+ native_handle_type & native_handle() {
+ return _native_handle;
+ }
+
+ protected:
+ native_handle_type _native_handle;
+ };
+
+
+ /**
+ * Same interface as std::mutex.
+ */
+ class mutex : public _base_mutex
+ {
+ public:
+ inline
+ mutex(void) {
+#ifdef _WIN32
+ InitializeCriticalSection(&_native_handle);
+#else
+ pthread_mutex_init(&_native_handle, NULL);
+#endif
+ }
+ };
+
+
+ /**
+ * Same interface as std::recursive_mutex.
+ */
+ class recursive_mutex : public _base_mutex
+ {
+ public:
+ inline
+ recursive_mutex(void) {
+#ifdef _WIN32
+ InitializeCriticalSection(&_native_handle);
+#else
+ pthread_mutexattr_t attr;
+ pthread_mutexattr_init(&attr);
+ pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE);
+ pthread_mutex_init(&_native_handle, &attr);
+ pthread_mutexattr_destroy(&attr);
+#endif
+ }
+ };
+
+
+ /**
+ * Same interface as std::unique_lock;
+ */
+ template< class Mutex >
+ class unique_lock
+ {
+ public:
+ typedef Mutex mutex_type;
+
+ inline explicit
+ unique_lock(mutex_type & mutex) :
+ _mutex(&mutex)
+ {
+ _mutex->lock();
+ }
+
+ inline
+ ~unique_lock() {
+ _mutex->unlock();
+ }
+
+ inline void
+ lock() {
+ _mutex->lock();
+ }
+
+ inline void
+ unlock() {
+ _mutex->unlock();
+ }
+
+ mutex_type *
+ mutex() const {
+ return _mutex;
+ }
+
+ protected:
+ mutex_type *_mutex;
+ };
+
+
+ /**
+ * Same interface as std::condition_variable
+ */
+ class condition_variable
+ {
+ public:
+#ifdef _WIN32
+ typedef CONDITION_VARIABLE native_handle_type;
+#else
+ typedef pthread_cond_t native_handle_type;
+#endif
+
+ condition_variable() {
+#ifdef _WIN32
+ InitializeConditionVariable(&_native_handle);
+#else
+ pthread_cond_init(&_native_handle, NULL);
+#endif
+ }
+
+ ~condition_variable() {
+#ifdef _WIN32
+ /* No-op */
+#else
+ pthread_cond_destroy(&_native_handle);
+#endif
+ }
+
+ inline void
+ signal(void) {
+#ifdef _WIN32
+ WakeConditionVariable(&_native_handle);
+#else
+ pthread_cond_signal(&_native_handle);
+#endif
+ }
+
+ inline void
+ wait(unique_lock<mutex> & lock) {
+ mutex::native_handle_type & mutex_native_handle = lock.mutex()->native_handle();
+#ifdef _WIN32
+ /* FIXME */
+ SleepConditionVariableCS(&_native_handle, &mutex_native_handle, INFINITE);
+#else
+ pthread_cond_wait(&_native_handle, &mutex_native_handle);
+#endif
+ }
+
+ protected: