69 lines
2.1 KiB
C++
69 lines
2.1 KiB
C++
/*
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* Copyright (C) 2009-2013 Max Kellermann <max.kellermann@gmail.com>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* - Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* - Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* FOUNDATION OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef THREAD_CRITICAL_SECTION_HXX
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#define THREAD_CRITICAL_SECTION_HXX
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#include <synchapi.h>
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/**
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* Wrapper for a CRITICAL_SECTION, backend for the Mutex class.
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*/
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class CriticalSection {
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friend class WindowsCond;
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CRITICAL_SECTION critical_section;
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public:
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CriticalSection() noexcept {
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::InitializeCriticalSection(&critical_section);
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}
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~CriticalSection() noexcept {
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::DeleteCriticalSection(&critical_section);
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}
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CriticalSection(const CriticalSection &other) = delete;
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CriticalSection &operator=(const CriticalSection &other) = delete;
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void lock() noexcept {
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::EnterCriticalSection(&critical_section);
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}
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bool try_lock() noexcept {
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return ::TryEnterCriticalSection(&critical_section) != 0;
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}
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void unlock() noexcept {
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::LeaveCriticalSection(&critical_section);
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}
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};
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#endif
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