// Copyright (c) 2008-2009 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:

// csendmessagequeue.h

// 

//

/**

@file

@internalTechnology

*/

#ifndef __CSENDMESSAGEQUEUE_H__

#define __CSENDMESSAGEQUEUE_H__

//system include 

#include <e32base.h>

#include <es_sock.h>

#include <e32math.h>

#include <mdns/cdnsmessage.h>

#include <mdns/cdnsmessagecomposerparser.h>

//user include 

#include "msockethandlerobserver.h"

#include "csockethandler.h"

#include "mmessagehandler.h"

#include "mdnsdebug.h"

class MMessageHandler;

class CSendMessageData

	{

	public:

	   	static CSendMessageData* NewL(CDnsMessage* aDnsMessage, TBool aUnicast,TSockAddr aAddr, MMessageHandler& aCallback);

	   	const CDnsMessage& GetDnsMessage()const;

	   	const TSockAddr& GetSockAddress()const;

	   	const TBool& IsUnicast()const;

	   	~CSendMessageData();

		MMessageHandler& Callback();

	private:

		void ConstructL();

		CSendMessageData(CDnsMessage* aDnsMessage,TBool aUnicast,TSockAddr aAddr, MMessageHandler& aCallback);

	private:   	

		CDnsMessage* iMessage;

		TBool iUnicast;

		TSockAddr iSockAddr	;

		MMessageHandler& iCallback;

		/**

        *FLOGGER debug trace member variable.

        */

        __FLOG_DECLARATION_MEMBER_MUTABLE;

	};

class CSendMessageQueue : public CTimer, public MSocketHandlerObserver 

	{

	public:

		static CSendMessageQueue* NewL(RSocket& aSocket);

		~CSendMessageQueue();

		virtual void OnCompletionL(TDesC8& aData, const TSockAddr& aAddr, TInt aLength);

		virtual void OnError(TInt aError);

		void RunL();

		void DoCancel();

		void QueueDnsMessageL(const CSendMessageData& aMessageData);

	private:

	    CSendMessageQueue();

	    void ConstructL(RSocket& aSocket);

	    void NextTransmitTime(TTime aTime);

	    void StartTransmit();

	    CSendMessageData* NextDnsMessageL();

	    TBool MessageReady();

	private:

		CSendMessageData* iSendMessageData;

		CSocketHandler* iSendSocket;

		RPointerArray<CSendMessageData> iMessageQueue;

		TInt64 iRandomSeed;

		TTime iNextTransmit;

		TBool iIsSocketActive;

		RBuf8 iOutput;

		/**

		    *FLOGGER debug trace member variable.

		    */

		    __FLOG_DECLARATION_MEMBER_MUTABLE;

	};

#endif