mirror of
https://github.com/kingToolbox/WindTerm.git
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58 lines
1.2 KiB
C++
58 lines
1.2 KiB
C++
/*
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* Copyright 2020, WindTerm.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* 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, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef SCOPEGUARD_H
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#define SCOPEGUARD_H
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class ScopeGuard {
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typedef std::function<void()> GuardFunction;
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public:
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ScopeGuard(GuardFunction acquire, GuardFunction release)
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: m_active(true)
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, m_release(std::move(release))
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{
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acquire();
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}
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~ScopeGuard() {
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if (m_active) {
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m_release();
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}
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}
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ScopeGuard() = delete;
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ScopeGuard(const ScopeGuard &) = delete;
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ScopeGuard &operator=(const ScopeGuard &) = delete;
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ScopeGuard(ScopeGuard &&other)
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: m_active(other.m_active)
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, m_release(std::move(other.m_release))
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{
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other.cancel();
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}
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void cancel() {
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m_active = false;
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}
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private:
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bool m_active;
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GuardFunction m_release;
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};
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#endif // SCOPEGUARD_H
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