52 lines
1.2 KiB
C++
52 lines
1.2 KiB
C++
/*
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* Deskflow -- mouse and keyboard sharing utility
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* SPDX-FileCopyrightText: (C) 2025 Deskflow Developers
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* SPDX-FileCopyrightText: (C) 2021 Barrier Contributors
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* SPDX-License-Identifier: GPL-2.0-only WITH LicenseRef-OpenSSL-Exception
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*/
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#pragma once
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#include <utility>
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namespace deskflow {
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/**
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* @brief The `FinalAction` class implements a common pattern for calling an action at the end of a function.
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*/
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template <class Callable> class FinalAction
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{
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public:
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FinalAction() noexcept = default;
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explicit FinalAction(Callable callable) noexcept : m_callable{callable}
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{
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// do nothing
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}
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~FinalAction() noexcept
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{
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if (!m_invoked) {
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m_callable();
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}
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}
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FinalAction(FinalAction &&other) noexcept : m_callable{std::move(other.m_callable)}
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{
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std::swap(m_invoked, other.m_invoked);
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}
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FinalAction(const FinalAction &) = delete;
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FinalAction &operator=(const FinalAction &) = delete;
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private:
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bool m_invoked = false;
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Callable m_callable;
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};
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template <class Callable> inline FinalAction<Callable> finally(Callable &&callable) noexcept
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{
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return FinalAction<Callable>(std::forward<Callable>(callable));
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}
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} // namespace deskflow
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