80 lines
3 KiB
C
80 lines
3 KiB
C
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//////////////////////////////////////////////////////////////////////////////////////////////////////////////
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//
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// Microsoft WMI OLE DB Provider
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// (C) Copyright 1999 Microsoft Corporation. All Rights Reserved.
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//
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// Generic critical section handling classes
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//
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//////////////////////////////////////////////////////////////////////////////////////////////////////////////
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#ifndef __CRITSEC_H_
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#define __CRITSEC_H_
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//////////////////////////////////////////////////////////////////////////////////////////////////////////////
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//
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// The constructor/destructor automatically initializes/deletes the CRITIICAL_SECTION correctly, to ensure
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// that each call is correctly paired, IF the fAutoInit is set to TRUE, otherwise, you have to manually deal
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// with this - this is implemented for the static global CS that is required.
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//
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//////////////////////////////////////////////////////////////////////////////////////////////////////////////
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class CCriticalSection
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{
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public:
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inline CCriticalSection(BOOL fAutoInit); // CTOR.
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inline ~CCriticalSection(); // DTOR.
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inline void Enter(); // Enter the critical section
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inline void Leave(); // Leave the critical section
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// inline DWORD OwningThreadId(); // Returns the "owning" thread id
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inline void Init(void);
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inline void Delete(void);
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private:
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BOOL m_fAutoInit;
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CRITICAL_SECTION m_criticalsection; // standby critical section
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};
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//////////////////////////////////////////////////////////////////////////////////////////////////////////////
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inline CCriticalSection::CCriticalSection(BOOL fAutoInit)
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{
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m_fAutoInit = fAutoInit;
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if( m_fAutoInit ){
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Init();
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}
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}
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//////////////////////////////////////////////////////////////////////////////////////////////////////////////
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inline void CCriticalSection::Init(void)
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{
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InitializeCriticalSection(&m_criticalsection);
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}
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//////////////////////////////////////////////////////////////////////////////////////////////////////////////
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inline void CCriticalSection::Delete(void)
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{
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DeleteCriticalSection(&m_criticalsection);
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}
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//////////////////////////////////////////////////////////////////////////////////////////////////////////////
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inline CCriticalSection::~CCriticalSection()
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{
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if( m_fAutoInit ){
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Delete();
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}
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}
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//////////////////////////////////////////////////////////////////////////////////////////////////////////////
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inline void CCriticalSection::Enter(void)
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{
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EnterCriticalSection(&m_criticalsection);
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}
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//////////////////////////////////////////////////////////////////////////////////////////////////////////////
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inline void CCriticalSection::Leave(void)
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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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inline DWORD CCriticalSection::OwningThreadId(void)
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{
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return DWORD(m_criticalsection.OwningThread);
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}
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*/
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#endif // __CRITSEC_H_
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