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