Merge pull request #5348 from acozzette/remove-singleton-header
Removed stubs/singleton.hpull/5360/head
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3c5f52aab4
2 changed files with 1 additions and 67 deletions
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// Protocol Buffers - Google's data interchange format
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// Copyright 2014 Google Inc. All rights reserved.
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// https://developers.google.com/protocol-buffers/
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following disclaimer
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// in the documentation and/or other materials provided with the
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// distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived from
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// this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#ifndef GOOGLE_PROTOBUF_STUBS_SINGLETON_H__ |
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#define GOOGLE_PROTOBUF_STUBS_SINGLETON_H__ |
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#include <google/protobuf/stubs/common.h> |
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#include <google/protobuf/stubs/once.h> |
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namespace google { |
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namespace protobuf { |
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namespace internal { |
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template<typename T> |
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class Singleton { |
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public: |
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static T* get() { |
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GoogleOnceInit(&once_, &Singleton<T>::Init); |
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return instance_; |
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} |
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static void ShutDown() { |
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delete instance_; |
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instance_ = nullptr; |
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} |
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private: |
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static void Init() { |
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instance_ = new T(); |
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} |
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static ProtobufOnceType once_; |
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static T* instance_; |
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}; |
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template<typename T> |
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ProtobufOnceType Singleton<T>::once_; |
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template<typename T> |
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T* Singleton<T>::instance_ = nullptr; |
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} // namespace internal
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} // namespace protobuf
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} // namespace google
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#endif // GOOGLE_PROTOBUF_STUBS_SINGLETON_H__
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