-#endif
- }
-
- protected:
- native_handle_type _native_handle;
- };
-
-
- /**
- * Same interface as boost::thread_specific_ptr.
- */
- template <typename T>
- class thread_specific_ptr
- {
- private:
-#ifdef _WIN32
- DWORD dwTlsIndex;
-#else
- pthread_key_t key;
-
- static void destructor(void *ptr) {
- delete static_cast<T *>(ptr);
- }
-#endif
-
- public:
- thread_specific_ptr(void) {
-#ifdef _WIN32
- dwTlsIndex = TlsAlloc();
-#else
- pthread_key_create(&key, &destructor);
-#endif
- }
-
- ~thread_specific_ptr() {
-#ifdef _WIN32
- TlsFree(dwTlsIndex);
-#else
- pthread_key_delete(key);
-#endif
- }
-
- T* get(void) const {
- void *ptr;
-#ifdef _WIN32
- ptr = TlsGetValue(dwTlsIndex);
-#else
- ptr = pthread_getspecific(key);
-#endif
- return static_cast<T*>(ptr);
- }
-
- T* operator -> (void) const
- {
- return get();
- }
-
- T& operator * (void) const
- {
- return *get();
- }
-
- void reset(T* new_value=0) {
- T * old_value = get();
- set(new_value);
- if (old_value) {
- delete old_value;
- }
- }
-
- T* release (void) {
- T * old_value = get();
- set(0);
- return old_value;
- }
-
-private:
- void set(T* new_value) {
-#ifdef _WIN32
- TlsSetValue(dwTlsIndex, new_value);
-#else
- pthread_setspecific(key, new_value);