54 lines
1.6 KiB
C++
54 lines
1.6 KiB
C++
// Licensed to the Apache Software Foundation (ASF) under one
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// or more contributor license agreements. See the NOTICE file
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// distributed with this work for additional information
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// regarding copyright ownership. The ASF licenses this file
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// to you under the Apache License, Version 2.0 (the
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// "License"); you may not use this file except in compliance
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// with the License. You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing,
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// software distributed under the License is distributed on an
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// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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// KIND, either express or implied. See the License for the
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// specific language governing permissions and limitations
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// under the License.
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// Date: Tue Sep 16 12:39:12 CST 2014
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#ifndef BUTIL_THREAD_LOCAL_INL_H
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#define BUTIL_THREAD_LOCAL_INL_H
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namespace butil {
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namespace detail {
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template <typename T>
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class ThreadLocalHelper {
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public:
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inline static T* get() {
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if (__builtin_expect(value != NULL, 1)) {
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return value;
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}
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value = new (std::nothrow) T;
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if (value != NULL) {
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butil::thread_atexit(delete_object<T>, value);
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}
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return value;
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}
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static BAIDU_THREAD_LOCAL T* value;
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};
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template <typename T> BAIDU_THREAD_LOCAL T* ThreadLocalHelper<T>::value = NULL;
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} // namespace detail
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template <typename T> inline T* get_thread_local() {
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return detail::ThreadLocalHelper<T>::get();
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}
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} // namespace butil
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#endif // BUTIL_THREAD_LOCAL_INL_H
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