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60 lines
1.4 KiB
60 lines
1.4 KiB
/* |
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* Copyright (C) 2014 The Android Open Source Project |
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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 ANDROID_BASE_SCOPEGUARD_H |
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#define ANDROID_BASE_SCOPEGUARD_H |
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#include <utility> // for std::move |
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namespace android { |
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namespace base { |
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template <typename F> |
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class ScopeGuard { |
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public: |
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ScopeGuard(F f) : f_(f), active_(true) {} |
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ScopeGuard(ScopeGuard&& that) : f_(std::move(that.f_)), active_(that.active_) { |
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that.active_ = false; |
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} |
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~ScopeGuard() { |
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if (active_) f_(); |
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} |
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ScopeGuard() = delete; |
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ScopeGuard(const ScopeGuard&) = delete; |
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void operator=(const ScopeGuard&) = delete; |
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void operator=(ScopeGuard&& that) = delete; |
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void Disable() { active_ = false; } |
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bool active() const { return active_; } |
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private: |
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F f_; |
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bool active_; |
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}; |
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template <typename T> |
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ScopeGuard<T> make_scope_guard(T f) { |
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return ScopeGuard<T>(f); |
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} |
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} // namespace base |
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} // namespace android |
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#endif // ANDROID_BASE_SCOPEGUARD_H
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