--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/cryptomgmtlibs/securitycommonutils/source/scsclient/scsclientsubsessionbase.cpp	Thu Sep 10 14:01:51 2009 +0300
@@ -0,0 +1,142 @@
+/*
+* Copyright (c) 2007-2009 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: 
+* Defines the functionality which client-side subsession handles use
+* to create and destroy subsessions, and to send messages to them.
+*
+*/
+
+
+/**
+ @file
+*/
+
+
+#include <scs/scsclient.h>
+#include <scs/scscommon.h>
+
+using namespace ScsImpl;
+
+
+EXPORT_C RScsClientSubsessionBase::RScsClientSubsessionBase()
+/**
+	This protected constructor prevents the class from being
+	instantiated directly.
+ */
+:	RSubSessionBase()
+	{
+	// empty.
+	}
+
+EXPORT_C void RScsClientSubsessionBase::Close()
+/**
+	Closes the subsession, releasing resources on the server side.
+ */
+	{
+	CloseSubSession(ECloseSubsession);
+	}
+
+EXPORT_C TInt RScsClientSubsessionBase::CreateSubsession(const RScsClientBase& aSession, TInt aFunction, const TIpcArgs& aArgs)
+/**
+	Create a subsession over the supplied session.
+
+	@param	aSession		Session which will host the subsession.
+	@param	aFunction		Command identifier.	 Bits 31:24 must be zero, because
+							they are reserved for SCS commands.
+	@param	aArgs			Standard IPC arguments.	 The fourth argument cannot be
+							used because that is reserved for the subsession handle.
+	@return					Error code with which the server completed the request.
+ */
+	{
+	return RSubSessionBase::CreateSubSession(
+		aSession,
+		ECreateSubsession | aFunction,
+		aArgs);
+	}
+
+EXPORT_C TInt RScsClientSubsessionBase::CallSubsessionFunction(TInt aFunction) const
+/**
+	Send a command to the corresponding server-side subsession.
+	The subclass uses this function instead of directly calling
+	RSubSessionBase::SendReceive because it adds the SCS code which
+	marks this as a subsession call.  Therefore, it can be routed
+	to the subsession object on the server side without any custom
+	decoding.
+	
+	@param	aFunction		Subsession command identifier.	Bits 31:24 must be zero,
+							because they are reserved for SCS commands.
+	@return					Error code with which the server completed the request.
+ */
+	{
+	__ASSERT_DEBUG(! ScsFieldUsed(aFunction), ClientSidePanic(EScsClNoArgsSubsessUsedScs));
+	
+	TInt f = ECallSubsessionFunc | aFunction;
+	return RSubSessionBase::SendReceive(f);
+	}
+
+EXPORT_C TInt RScsClientSubsessionBase::CallSubsessionFunction(TInt aFunction, const TIpcArgs& aArgs) const
+/**
+	Send a command to the corresponding server-side subsession.
+	The subclass uses this function instead of directly calling
+	RSubSessionBase::SendReceive because it adds the SCS code which
+	marks this as a subsession call.  Therefore, it can be routed
+	to the subsession object on the server side without any custom
+	decoding.
+	
+	@param	aFunction		Subsession command identifier.	Bits 31:24 must be zero,
+							because they are reserved for SCS commands.
+	@param	aArgs			Standard IPC arguments.	 The fourth argument cannot be
+							used because that is reserved for the subsession handle.
+	@return					Error code with which the server completed the request.
+ */
+	{
+	__ASSERT_DEBUG(! ScsFieldUsed(aFunction), ClientSidePanic(EScsClArgsSubsessUsedScs));
+	
+	TInt f = ECallSubsessionFunc | aFunction;
+	return RSubSessionBase::SendReceive(f, aArgs);	
+	}
+
+EXPORT_C void RScsClientSubsessionBase::CallSubsessionFunction(TInt aFunction, const TIpcArgs& aArgs, TRequestStatus& aStatus) const
+/**
+	Send a command to the corresponding server-side subsession.
+	
+	@param	aFunction		Subsession command identifier.	Bits 31:24 must be zero,
+							because they are reserved for SCS commands.
+	@param	aArgs			Standard IPC arguments.	 The fourth argument cannot be
+							used because that is reserved for the subsession handle.
+	@param	aStatus			The server completes this object when it has finished
+							handling the session.
+ */
+	{
+	__ASSERT_DEBUG(! ScsFieldUsed(aFunction), ClientSidePanic(EScsClArgsSubsessAsyncUsedScs));
+	
+	TInt f = ECallSubsessionFunc | aFunction;
+	RSubSessionBase::SendReceive(f, aArgs, aStatus);		
+	}
+
+EXPORT_C void RScsClientSubsessionBase::CancelSubsessionFunction(TInt aFunction) const
+/**
+	Cancel an outstanding subsession request.  This has no effect if the
+	request is not outstanding.
+	
+	@param	aFunction		Implementation function.  This must be the
+							same value that was supplied to CallSubsessionFunction.
+ */
+	{
+	__ASSERT_DEBUG(! ScsFieldUsed(aFunction), ClientSidePanic(EScsClCancelSubsessUsedScs));
+	
+	TInt f = ECancelSubsessionFunc | aFunction;
+	RSubSessionBase::SendReceive(f);
+	}
+