// Copyright (c) 2006-2009 Nokia Corporation and/or its subsidiary(-ies).

// All rights reserved.

// This component and the accompanying materials are made available

// under the terms of the License "Eclipse Public License v1.0"

// which accompanies this distribution, and is available

// at the URL "http://www.eclipse.org/legal/epl-v10.html".

//

// Initial Contributors:

// Nokia Corporation - initial contribution.

//

// Contributors:

//

// Description:

// Asynchronous security server active object class.

// 

//

#include <e32base.h>

#include <e32base_private.h>

#include "c_security_svr_async.h"

#include "rm_debug_logging.h"

using namespace Debug;

// ctor

CSecuritySvrAsync::CSecuritySvrAsync(CSecuritySvrSession* aSession, TProcessId aAgentId)

: CActive(CActive::EPriorityStandard),

  iSession(aSession),

  iProcessName(NULL),

  iAgentId(aAgentId)

	{

	LOG_MSG("CSecuritySvrAsync::CSecuritySvrAsync()");

	CActiveScheduler::Add(this);

	}

// returns a CSecuritySvrAsync active object associated with

// the specified agent and debugged process.

CSecuritySvrAsync* CSecuritySvrAsync::NewL(CSecuritySvrSession* aSession, const TDesC8& aProcessName, TProcessId aAgentId)

	{

	LOG_MSG("CSecuritySvrAsync::NewL()");

	CSecuritySvrAsync* me = new (ELeave) CSecuritySvrAsync(aSession, aAgentId);

	CleanupStack::PushL(me);

	me->ConstructL(aProcessName);

	CleanupStack::Pop(me);

	return (me);

	}

// dtor

CSecuritySvrAsync::~CSecuritySvrAsync()

	{

	LOG_MSG("CSecuritySvrAsync::~CSecuritySvrAsync()");

	// NOTE: the Cancel() function calls DoCancel() which may rely on class members so be careful not

	// to destroy/close data members before this call if they are needed

	Cancel();

	iProcessName.Close();

	}

// Associates the agent id and process name with the Active Object being constructed

void CSecuritySvrAsync::ConstructL(const TDesC8& aProcessName)

	{

	LOG_MSG("CSecuritySvrAsync::ConstructL()");

	iProcessName.CreateL(aProcessName.Length());

	iProcessName.Copy(aProcessName);

	}

// RunL() completes a previously issued call (currently only GetEvent() completion)

void CSecuritySvrAsync::RunL()

	{

	LOG_MSG("CSecuritySvrAsync::RunL()");

	// Something bad happened in the driver

	User::LeaveIfError(iStatus.Int());

	// Write back the event data to the debug agent.

	// For compatibility we need to check the size of the buffer that the

	// client has passed in as the size of TEventInfo will increase over time.

	// Clients can calculate the required size from the EApiConstantsTEventInfoSize entry 

	// in the Debug Functionality block but may still pass in buffers which

	// are smaller than the Debug Security Server's calculation of sizeof(TEventInfo), 

	// returning KErrTooBig in this case would be

	// inappropriate as we would break compatibility.

	TInt dataLengthToReturn = sizeof(TEventInfo);

	TInt maxLengthClientSide = iMessage.GetDesMaxLengthL(1);

	if(maxLengthClientSide < dataLengthToReturn)

		{

		dataLengthToReturn = maxLengthClientSide;

		}

	TPtr8 data((TUint8*)&iInfo,dataLengthToReturn,dataLengthToReturn);

	iMessage.WriteL(1,data,0);

	iMessage.Complete(KErrNone);

	}

// Cancels the oustanding GetEvent call. May cope with other async calls in future.

void CSecuritySvrAsync::DoCancel()

	{

	LOG_MSG("CSecuritySvrAsync::DoCancel()");

	iSession->Server().iKernelDriver.CancelGetEvent(iProcessName,iAgentId.Id());

	iMessage.Complete(KErrCancel);

	}

// Report any leave to the client if possible.

TInt CSecuritySvrAsync::RunError(TInt aError)

	{

	LOG_MSG("CSecuritySvrAsync::RunError()");

	iMessage.Complete(aError);

	return KErrNone;

	}

// Start an Asynchronous GetEvent call to the rm_debug.ldd driver

// and activate this Active Object.

void CSecuritySvrAsync::GetEvent(const RMessage2& aMessage)

	{

	LOG_MSG("CSecuritySvrAsync::GetEvent()");

	iMessage = aMessage;

	iSession->Server().iKernelDriver.GetEvent(iProcessName,iAgentId.Id(),iStatus,iInfo);

	SetActive();

	}

// Used for identifying which AO is associated with a debugged process

const TDesC8& CSecuritySvrAsync::ProcessName(void)

{

	LOG_MSG("CSecuritySvrAsync::ProcessName()");

	return iProcessName;

}

// End of file - c_security_svr_async.cpp