sysstatemgmt/systemstatemgr/ssm/src/ssmswppolicycli.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Tue, 02 Feb 2010 00:53:00 +0200
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// Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).
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// All rights reserved.
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// This component and the accompanying materials are made available
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// under the terms of "Eclipse Public License v1.0"
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// which accompanies this distribution, and is available
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// at the URL "http://www.eclipse.org/legal/epl-v10.html".
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//
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// Initial Contributors:
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// Nokia Corporation - initial contribution.
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//
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// Contributors:
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//
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// Description:
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//
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#include "ssmswppolicycli.h"
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#include "ssmswppolicysrv.h"
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#include "ssmswppolicyconst.h"
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#include "ssmdebug.h"
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/**
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 Constructs the client-side ssmswppolicy server session.
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*/
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RSsmSwpPolicySession::RSsmSwpPolicySession()
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	: RSessionBase(), iVersion(KSsmSwpPolicyCliVersionMajor, KSsmSwpPolicyCliVersionMinor, KSsmSwpPolicyCliVersionBuild)
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	{
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	} //lint !e1401 not initialized by constructor (iSpare)
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/**
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 Connects to the ssmswppolicy server. If the server is not found, this function will attempt to start it
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 and retry connecting to it.
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@leave KErrNoMemory if no memory.
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*/
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void RSsmSwpPolicySession::ConnectL()
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	{
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	// Guard against multiple calls.
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	if(KNullHandle != iHandle)
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		{
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		DEBUGPRINT1(_L("RSsmSwpPolicySession: Client already has a Connected session"));
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		User::Leave(KErrAlreadyExists);
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		}
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	const TInt err = CreateSession(KSsmSwpPolicySrvName, iVersion, KSsmSwpPolicySrvMsgSlots);
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	if((KErrNotFound == err) || (KErrServerTerminated == err))
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		{
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		User::LeaveIfError(CSsmSwpPolicyServer::StartSsmSwpPolicySrv(KSsmSwpPolicySrvName));
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		User::LeaveIfError(CreateSession(KSsmSwpPolicySrvName, iVersion, KSsmSwpPolicySrvMsgSlots));
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		DEBUGPRINT1(_L("RSsmSwpPolicySession Connect Completed with KErrNone"));
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		}
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	else
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		{
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		DEBUGPRINT2(_L("RSsmSwpPolicySession Connect Completed with %d"), err);
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		User::LeaveIfError(err);
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		}
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	}
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#ifdef TEST_SSM_SERVER
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/**
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 For testing purposes
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 Connects to ssmswppolicy server with the specified name. If the server is not found, this function will attempt to start it
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 and retry connecting to it.
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@param aServerName The name of the ssmswppolicy server to connect to
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@leave KErrNoMemory if no memory.
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*/
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void RSsmSwpPolicySession::ConnectL(const TDesC& aServerName)
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	{
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	// Guard against multiple calls.
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	if(KNullHandle != iHandle)
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		{
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		User::Leave(KErrAlreadyExists);
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		}
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	const TInt err = CreateSession(aServerName, iVersion, KSsmSwpPolicySrvMsgSlots);
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	if((KErrNotFound == err) || (KErrServerTerminated == err))
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		{
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		User::LeaveIfError(CSsmSwpPolicyServer::StartSsmSwpPolicySrv(aServerName));
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		User::LeaveIfError(CreateSession(aServerName, iVersion, KSsmSwpPolicySrvMsgSlots));
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		DEBUGPRINT1(_L("RSsmSwpPolicySession Connect Completed with KErrNone"));
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		}
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	else
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		{
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		DEBUGPRINT2(_L("RSsmSwpPolicySession Connect Completed with %d"), err);
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		User::LeaveIfError(err);
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		}
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	}
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#endif	// TEST_SSM_SERVER
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/**
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Closes the RSession handle.
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*/
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void RSsmSwpPolicySession::Close()
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	{
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	RSessionBase::Close();
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	}
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/**
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Sets the swppolicy dll handle and initializes the swppolicy. The policyhandle which is loaded in 
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swppolicyresovler is passed to the swppolicyserver, where it is used to open the handle to swppolicy
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and forward the calls from policy frame to the swppolicy.
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@param aPolicyHandle The swppolicy policyhandle
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@param aStatus		 Request Status
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*/
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void RSsmSwpPolicySession::CallSetDllHandleAndInitialize(TInt aPolicyHandle, TRequestStatus& aStatus)
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	{
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	DEBUGPRINT1(_L("RSsmSwpPolicySession: Sets the swppolicy Dll Hanlde and Initializes it"));
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	SendReceive(ESsmPolicySrvSetSwpPolicyDllHandleAndInitialize, TIpcArgs(aPolicyHandle), aStatus);
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	}
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   111
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/**
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Cancels the Initialization of the swppolicy, if any Initialization request is pending.
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@return KErrNone, if successful; otherwise one of the other system-wide error codes. 
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*/
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TInt RSsmSwpPolicySession::CallInitializeCancel()
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	{
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	DEBUGPRINT1(_L("RSsmSwpPolicySession: Cancel Initialization of the swp policy"));
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	return (SendReceive(ESsmPolicySrvInitializeCancel));
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	}
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   121
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/**
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Prepares the commandlist in swppolicy
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@param aSwp		Swp value
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@param aStatus	Request Status 
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*/
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void RSsmSwpPolicySession::CallPrepareCommandList(const TSsmSwp& aSwp, TRequestStatus& aStatus)
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	{
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	DEBUGPRINT1(_L("RSsmSwpPolicySession: Call Prepare command list in swppolicy"));
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	const TPckgC<TSsmSwp> swpBuf(aSwp);
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	SendReceive(ESsmPolicySrvPrepareCommandList, TIpcArgs(&swpBuf), aStatus);
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	}
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/**
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Cancels the preparation of the commandlist, if any preparecommandlist request is pending.
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@return KErrNone, if successful; otherwise one of the other system-wide error codes. 
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*/
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TInt RSsmSwpPolicySession::CallPrepareCommandListCancel()
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	{
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	DEBUGPRINT1(_L("RSsmSwpPolicySession: Cancel prepare command list in swppolicy"));
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	return (SendReceive(ESsmPolicySrvPrepareCommandListCancel));
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	}
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   143
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/**
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Returns the commandlist to the client from swppolicy.
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@return A pointer to commandlist
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*/
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CSsmCommandList* RSsmSwpPolicySession::CallCommandListL()
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	{
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	// Ensure any memory that might already have been allocated is disposed of. 
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	// Transfer the streamed cmd list from the CBuf.
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	RBuf8 cmdListBuf;
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	cmdListBuf.CreateL(KSsmSwpPolicyStreamBufMaxSize);
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	CleanupClosePushL(cmdListBuf);
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   155
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	TInt err = SendReceive(ESsmPolicySrvCommandList, TIpcArgs(&cmdListBuf));
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	DEBUGPRINT2(_L("RSsmSwpPolicySession: CallCommandList completed with %d"), err);
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   158
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	CSsmCommandList* cmdList = NULL;
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   160
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	if(err == KErrNone)
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		{
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		// Supply RBuf to the readstream. Stream and reconstruct the command list.
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		RDesReadStream readStream(cmdListBuf);
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		CleanupClosePushL(readStream);
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		cmdList = CSsmCommandList::NewLC();
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		cmdList->InternalizeL( readStream);
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		CleanupStack::Pop(cmdList);
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		CleanupStack::PopAndDestroy(&readStream);
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		}
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   171
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	CleanupStack::PopAndDestroy(&cmdListBuf);
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	return cmdList;
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	}
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   175
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/*
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Handles the value returned by Cle.
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@param aSwp			swp value
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@param aError		Error returned by cle as result of the command execution
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@param aSeverity	Severity of the command
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@param aStatus		Request Status
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*/
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void RSsmSwpPolicySession::CallHandleCleReturnValue(const TSsmSwp& aSwp, TInt aError, TInt aSeverity, TRequestStatus& aStatus)
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	{
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	const TPckgC<TSsmSwp> swpBuf(aSwp);
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	DEBUGPRINT1(_L("RSsmSwpPolicySession: Call HandleCleReturn Value of the swppolicy"));
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	SendReceive(ESsmPolicySrvHandleCleReturnValue, TIpcArgs(&swpBuf, aError, aSeverity), aStatus);
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	}
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   189
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/**
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Cancels the HandleCleReturnValue, if any HandleCleReturnValue request is pending.
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@return KErrNone, if successful; otherwise one of the other system-wide error codes. 
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*/
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TInt RSsmSwpPolicySession::CallHandleCleReturnValueCancel()
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	{
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	DEBUGPRINT1(_L("RSsmSwpPolicySession: Cancel Call HandleCleReturn Value of the swppolicy"));
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	return (SendReceive(ESsmPolicySrvHandleCleReturnValueCancel));
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	}
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   199
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   200
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   201
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   202
	
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   203