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55 lines
745 B
C++
55 lines
745 B
C++
/* Icinga 2 | (c) 2012 Icinga GmbH | GPLv2+ */
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#ifndef DEFER
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#define DEFER
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#include <functional>
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#include <utility>
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namespace icinga
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{
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/**
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* An action to be executed at end of scope.
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*
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* @ingroup base
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*/
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class Defer
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{
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public:
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inline
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Defer(std::function<void()> func) : m_Func(std::move(func))
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{
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}
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Defer(const Defer&) = delete;
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Defer(Defer&&) = delete;
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Defer& operator=(const Defer&) = delete;
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Defer& operator=(Defer&&) = delete;
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inline
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~Defer()
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{
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if (m_Func) {
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try {
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m_Func();
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} catch (...) {
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// https://stackoverflow.com/questions/130117/throwing-exceptions-out-of-a-destructor
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}
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}
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}
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inline
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void Cancel()
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{
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m_Func = nullptr;
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}
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private:
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std::function<void()> m_Func;
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};
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}
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#endif /* DEFER */
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