locationmgmt/networkgateway/inc/netrequestchannel.h
changeset 0 9cfd9a3ee49c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/locationmgmt/networkgateway/inc/netrequestchannel.h	Tue Feb 02 01:50:39 2010 +0200
@@ -0,0 +1,92 @@
+// 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 "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:
+// Definition of network request channel component.
+// 
+//
+
+/**
+ @file
+ @internalTechnology
+ @released
+*/
+
+#ifndef NETREQUESTCHANNEL_H_
+#define NETREQUESTCHANNEL_H_
+
+#include <e32hashtab.h>
+#include "lbsnrhngmsgs.h"
+#include "lbsnetinternalapi.h"
+#include "requestmessagebuffer.h"
+
+
+class CNetworkRequestMessageBuffer;
+
+//
+// Network Request Handler Channel
+//
+
+/** Observer for Network Request Handler interface
+*/
+class MNetworkRequestObserver
+	{
+public:
+	virtual void ProcessNetRequestMessage(const TLbsNetInternalMsgBase& aMessage) = 0;
+	};
+
+/** Manager for the Network Request Handler interface.
+
+This class handles sending and receiving messages on the
+Network Request Handler interface. It is implemented as an active object
+to allow it to asnychronously wait for messages to arrive. Sending
+is synchronous.
+*/
+class CNetworkRequestChannel : public CActive, 
+							   public MLbsNetChannelObserver
+	{
+public:
+	static CNetworkRequestChannel* NewL(MNetworkRequestObserver& aObserver);
+	~CNetworkRequestChannel();
+	
+	// from CActive
+	void RunL();
+	void DoCancel();
+	TInt RunError(TInt aError);
+	
+	// Send a message to the NRH.
+	void SendNetRequestMessage(const TLbsNetInternalMsgBase& aMessage);
+	
+	// from MLbsNetChannelObserver : process an incoming message from the NRH
+	void ProcessNetChannelMessage(RLbsNetChannel::TLbsNetChannelId aChannelId, const TLbsNetInternalMsgBase& aMessage);
+	
+private:
+	CNetworkRequestChannel(MNetworkRequestObserver& aObserver);
+	void ConstructL();
+	
+	void SendMessageAndNotifyForResponse(const TLbsNetInternalMsgBase& aMessage);
+	void SendNextBufferedMessage();
+	void RemoveEmergencyMessage(const TLbsNetInternalMsgBase* aMessage);
+	
+private:
+	MNetworkRequestObserver& iObserver;
+	RLbsNetChannel iNetRequestChannel;
+	CRequestMessageBuffer* iMsgBuffer;
+	
+	RPointerArray<TLbsNetInternalMsgBase> iEmergencyBuffer; // Buffer used for emergancy requests OOM safe.
+	TLbsNetLocationRequestMsg iEmergencyLocationRequestMsg;
+	TLbsNetMtLrRequestMsg iEmergencyPrivacyRequestMsg;
+	};
+
+
+
+#endif // NETREQUESTCHANNEL_H_