84 lines
1.6 KiB
C++
84 lines
1.6 KiB
C++
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/*
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* AudioCriticalSection.cpp
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* -----------
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* Purpose: Implementation of OpenMPT's critical section for access to CSoundFile.
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* Notes : (currently none)
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* Authors: OpenMPT Devs
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* The OpenMPT source code is released under the BSD license. Read LICENSE for more details.
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*/
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#include "stdafx.h"
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#include "AudioCriticalSection.h"
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#if defined(MODPLUG_TRACKER)
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#include "../misc/mptMutex.h"
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#endif
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OPENMPT_NAMESPACE_BEGIN
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#if defined(MODPLUG_TRACKER)
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#if MPT_COMPILER_MSVC
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_Acquires_lock_(m_refGlobalMutex.mutex)
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#endif // MPT_COMPILER_MSVC
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CriticalSection::CriticalSection()
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: m_refGlobalMutex(Tracker::GetGlobalMutexRef())
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, inSection(false)
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{
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Enter();
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}
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CriticalSection::CriticalSection(CriticalSection &&other) noexcept
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: m_refGlobalMutex(other.m_refGlobalMutex)
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, inSection(other.inSection)
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{
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other.inSection = false;
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}
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CriticalSection::CriticalSection(InitialState state)
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: m_refGlobalMutex(Tracker::GetGlobalMutexRef())
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, inSection(false)
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{
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if(state == InitialState::Locked)
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{
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Enter();
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}
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}
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#if MPT_COMPILER_MSVC
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_Acquires_lock_(m_refGlobalMutex.mutex)
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#endif // MPT_COMPILER_MSVC
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void CriticalSection::Enter()
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{
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if(!inSection)
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{
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inSection = true;
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m_refGlobalMutex.lock();
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}
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}
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#if MPT_COMPILER_MSVC
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_Requires_lock_held_(m_refGlobalMutex.mutex) _Releases_lock_(m_refGlobalMutex.mutex)
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#endif // MPT_COMPILER_MSVC
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void CriticalSection::Leave()
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{
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if(inSection)
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{
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inSection = false;
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m_refGlobalMutex.unlock();
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}
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}
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CriticalSection::~CriticalSection()
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{
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Leave();
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}
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#else
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MPT_MSVC_WORKAROUND_LNK4221(AudioCriticalSection)
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#endif
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OPENMPT_NAMESPACE_END
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