cspinlockimpdrvnt.h

PGP8.0源码 请认真阅读您的文件包然后写出其具体功能

/*____________________________________________________________________________
		Copyright (C) 2002 PGP Corporation
        All rights reserved.

        $Id: CSpinLockImpDrvNT.h,v 1.3 2002/08/06 20:10:51 dallen Exp $
____________________________________________________________________________*/

#ifndef Included_CSpinLockImpDrvNT_h	// [
#define Included_CSpinLockImpDrvNT_h

#include "pgpClassesConfig.h"
#include "CSpinLockImp.h"

_PGP_BEGIN

// Class CSpinLockImpDrvNT

class CSpinLockImpDrvNT : public CSpinLockImp
{
	friend class CPFLImpFactoryDrvNT;

private:
	CSpinLockImpDrvNT() {KeInitializeSpinLock(&mSpinLock);}

	void	Lock() {KeAcquireSpinLock(&mSpinLock, &mOldIrql);}
	void	Unlock() {KeReleaseSpinLock(&mSpinLock, mOldIrql);}

private:
	mutable KIRQL	mOldIrql;
	KSPIN_LOCK		mSpinLock;
};

_PGP_END

#endif	// ] Included_CSpinLockImpDrvNT_h