65 lines
1.4 KiB
C++
65 lines
1.4 KiB
C++
#pragma once
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namespace MediaFoundationSamples
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{
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//////////////////////////////////////////////////////////////////////////
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// CritSec
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// Description: Wraps a critical section.
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//////////////////////////////////////////////////////////////////////////
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class CritSec
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{
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private:
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CRITICAL_SECTION m_criticalSection;
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public:
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CritSec()
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{
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InitializeCriticalSection(&m_criticalSection);
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}
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~CritSec()
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{
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DeleteCriticalSection(&m_criticalSection);
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}
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void Lock()
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{
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EnterCriticalSection(&m_criticalSection);
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}
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void Unlock()
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{
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LeaveCriticalSection(&m_criticalSection);
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}
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};
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//////////////////////////////////////////////////////////////////////////
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// AutoLock
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// Description: Provides automatic locking and unlocking of a
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// of a critical section.
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//
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// Note: The AutoLock object must go out of scope before the CritSec.
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//////////////////////////////////////////////////////////////////////////
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class AutoLock
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{
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private:
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CritSec *m_pCriticalSection;
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public:
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AutoLock(CritSec& crit)
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{
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m_pCriticalSection = &crit;
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m_pCriticalSection->Lock();
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}
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~AutoLock()
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{
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m_pCriticalSection->Unlock();
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}
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};
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}; // namespace MediaFoundationSamples
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