// Copyright (c) 2014 Baidu, Inc. // // Licensed under the Apache License, Version 2.0 (the "License"); // you may not use this file except in compliance with the License. // You may obtain a copy of the License at // // http://www.apache.org/licenses/LICENSE-2.0 // // Unless required by applicable law or agreed to in writing, software // distributed under the License is distributed on an "AS IS" BASIS, // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. // See the License for the specific language governing permissions and // limitations under the License. // Author: Ge,Jun (gejun@baidu.com) // Date: Tue Sep 16 12:39:12 CST 2014 #ifndef BUTIL_THREAD_LOCAL_INL_H #define BUTIL_THREAD_LOCAL_INL_H namespace butil { namespace detail { template <typename T> class ThreadLocalHelper { public: inline static T* get() { if (__builtin_expect(value != NULL, 1)) { return value; } value = new (std::nothrow) T; if (value != NULL) { butil::thread_atexit(delete_object<T>, value); } return value; } static BAIDU_THREAD_LOCAL T* value; }; template <typename T> BAIDU_THREAD_LOCAL T* ThreadLocalHelper<T>::value = NULL; } // namespace detail template <typename T> inline T* get_thread_local() { return detail::ThreadLocalHelper<T>::get(); } } // namespace butil #endif // BUTIL_THREAD_LOCAL_INL_H