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