43 lines
1.2 KiB
C++
43 lines
1.2 KiB
C++
/*
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* This file is open source software, licensed to you under the terms
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* of the Apache License, Version 2.0 (the "License"). See the NOTICE file
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* distributed with this work for additional information regarding copyright
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* ownership. You may not use this file except in compliance with the License.
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*
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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,
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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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*/
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/*
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* Copyright (C) 2014 Cloudius Systems, Ltd.
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*/
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#ifndef UTIL_DEFER_HH_
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#define UTIL_DEFER_HH_
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template <typename Func>
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class deferred_action {
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Func _func;
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bool _cancelled = false;
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public:
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deferred_action(Func&& func) : _func(std::move(func)) {}
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~deferred_action() { _func(); }
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void cancel() { _cancelled = true; }
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};
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template <typename Func>
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inline
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deferred_action<Func>
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defer(Func&& func) {
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return deferred_action<Func>(std::forward<Func>(func));
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}
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#endif /* UTIL_DEFER_HH_ */
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