From efbfe66f21a8865454bc7a9e32305c84c09ba4be Mon Sep 17 00:00:00 2001 From: Max Kellermann Date: Fri, 4 Jan 2013 20:50:26 +0100 Subject: Mutex: new wrapper for std::mutex, replaces GMutex --- src/thread/CriticalSection.hxx | 63 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 63 insertions(+) create mode 100644 src/thread/CriticalSection.hxx (limited to 'src/thread/CriticalSection.hxx') diff --git a/src/thread/CriticalSection.hxx b/src/thread/CriticalSection.hxx new file mode 100644 index 000000000..f3faee943 --- /dev/null +++ b/src/thread/CriticalSection.hxx @@ -0,0 +1,63 @@ +/* + * Copyright (C) 2009-2013 Max Kellermann + * + * 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 MPD_THREAD_CRITICAL_SECTION_HXX +#define MPD_THREAD_CRITICAL_SECTION_HXX + +#include + +class CriticalSection { + CRITICAL_SECTION critical_section; + +public: + CriticalSection() { + ::InitializeCriticalSection(&critical_section); + } + + ~CriticalSection() { + ::DeleteCriticalSection(&critical_section); + } + + CriticalSection(const CriticalSection &other) = delete; + CriticalSection &operator=(const CriticalSection &other) = delete; + + void lock() { + ::EnterCriticalSection(&critical_section); + }; + + bool try_lock() { + return ::TryEnterCriticalSection(&critical_section) != 0; + }; + + void unlock() { + ::LeaveCriticalSection(&critical_section); + } +}; + +#endif -- cgit v1.2.3