52 lines
1.3 KiB
C++
52 lines
1.3 KiB
C++
/*
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* Copyright (c) 2016 The ZLToolKit project authors. All Rights Reserved.
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*
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* This file is part of ZLToolKit(https://github.com/ZLMediaKit/ZLToolKit).
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*
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* Use of this source code is governed by MIT license that can be found in the
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* LICENSE file in the root of the source tree. All contributing project authors
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* may be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef UTIL_ONCETOKEN_H_
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#define UTIL_ONCETOKEN_H_
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#include <functional>
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#include <type_traits>
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namespace toolkit {
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class onceToken {
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public:
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using task = std::function<void(void)>;
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template<typename FUNC>
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onceToken(const FUNC &onConstructed, task onDestructed = nullptr) {
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onConstructed();
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_onDestructed = std::move(onDestructed);
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}
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onceToken(std::nullptr_t, task onDestructed = nullptr) {
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_onDestructed = std::move(onDestructed);
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}
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~onceToken() {
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if (_onDestructed) {
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_onDestructed();
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}
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}
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private:
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onceToken() = delete;
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onceToken(const onceToken &) = delete;
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onceToken(onceToken &&) = delete;
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onceToken &operator=(const onceToken &) = delete;
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onceToken &operator=(onceToken &&) = delete;
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private:
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task _onDestructed;
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};
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} /* namespace toolkit */
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#endif /* UTIL_ONCETOKEN_H_ */
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