cdiskinactivityimpdrvnt.cpp

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: CDiskInactivityImpDrvNT.cpp,v 1.6 2002/08/06 20:09:31 dallen Exp $
____________________________________________________________________________*/

#include "pgpClassesConfig.h"
#include "CDiskInactivityImpDrvNT.h"

_USING_PGP

_UNNAMED_BEGIN

// Static variables
const WCHAR	*kPGPsdkDeviceName	= L"PGPsdkDriver";

_UNNAMED_END


// Class CDiskInactivityImpDrvNT member functions

CDiskInactivityImpDrvNT::CDiskInactivityImpDrvNT()
{
	Status() = mPGPsdkDevice.Status();
}

CComboError 
CDiskInactivityImpDrvNT::AttachToDriver()
{
	CComboError	error;

	if (!mPGPsdkDevice.IsAttached())
	{
		CUnicodeString	sdkName(kPGPsdkDeviceName);
		error = sdkName.Status();

		if (error.IsntError())
			error = sdkName.Prepend(kNTDevicePathPrefix);

		if (error.IsntError())
			error = mPGPsdkDevice.Attach(sdkName);

		if (error.IsntError())
		{
			error = mPGPsdkDevice.Reference();

			if (error.IsError())
				mPGPsdkDevice.Detach();
		}
	}

	return error;
}

CComboError 
CDiskInactivityImpDrvNT::SendInactivityCommand(
	PGPINACTIVITYSTRUCT& pgpIS) const
{
	CComboError	error;

	error = mPGPsdkDevice.SendIoctlRequest(IOCTL_PGPUTIL_INACTIVITY, 
		&pgpIS, sizeof(pgpIS), &pgpIS, sizeof(pgpIS), TRUE);

	if (error.IsntError())
		error.pgpErr = pgpIS.ulError;

	return error;
}

void 
CDiskInactivityImpDrvNT::Shutdown()
{
	if (mPGPsdkDevice.IsAttached())
	{
		mPGPsdkDevice.Dereference();
		mPGPsdkDevice.Detach();
	}
}