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/*
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* Component Name: Headset Simulator
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* Author: Comarch S.A.
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* Version: 1.0
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* Copyright (c) 2010 Comarch S.A.
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*
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* This Software is submitted by Comarch S.A. to Symbian Foundation Limited on
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* the basis of the Member Contribution Agreement entered between Comarch S.A.
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* and Symbian Foundation Limited on 5th June 2009 (“Agreement”) and may be
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* used only in accordance with the terms and conditions of the Agreement.
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* Any other usage, duplication or redistribution of this Software is not
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* allowed without written permission of Comarch S.A.
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*
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*/
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#ifndef HSCLIENT_H_
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#define HSCLIENT_H_
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#include <bt_sock.h>
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class MHsClientObserver;
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class MHsClientStateNotifier;
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/** Length of AG's receive and send data buffer */
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const TInt32 KHsClientBufferLength = 0x800;
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/** Buffer for communication with AG */
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typedef TBuf8 <KHsClientBufferLength> THsClientBuffer;
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/**
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* @brief Class represents AG client.
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*/
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class CHsClient : public CBase, public MBluetoothSocketNotifier
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{
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public:
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/**
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* Two-phase constructor
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*
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* @param aClient socket which AG is connected
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* @param aClientStateNotifier pointer to AG state observer
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* @param aClientDisconnectNotifier pointer to AG disconnection observer
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* @return instance of class
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*/
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static CHsClient* NewL( CBluetoothSocket* aClient,
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MHsClientStateNotifier* aClientStateNotifier = NULL,
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MHsClientObserver* aClientDisconnectNotifier = NULL );
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/**
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* Two-phase constructor
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*
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* @param aClient socket which AG is connected
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* @param aClientStateNotifier pointer to AG state observer
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* @param aClientDisconnectNotifier pointer to AG disconnection observer
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* @return instance of class
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*/
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static CHsClient* NewLC( CBluetoothSocket* aClient,
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MHsClientStateNotifier* aClientStateNotifier = NULL,
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MHsClientObserver* aClientDisconnectNotifier = NULL );
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/**
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* Destructor
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*/
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~CHsClient();
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public:
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/**
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* Sends data to AG.
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*
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* @pre AG client is connected
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*
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* @param aData data to be send
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*/
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void Send( const TDesC8& aData );
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/**
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* Sets observer of AG's disconnection.
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*
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* @param aNotifier reference to MHsClientObserver
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*/
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void SetClientDisconnectNotfier( MHsClientObserver& aNotifier );
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/**
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* Sets observer of AG's states.
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*
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* @param aNotifier reference to MHsClientStateNotifier
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*/
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void SetClientStateNotfier( MHsClientStateNotifier& aNotifier );
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/**
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* Returns pointer to AG's states observer.
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*/
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MHsClientStateNotifier* GetClientStateNotifer();
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private:
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/**
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* Constructor for performing 1st stage construction
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*
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* @param aClient socket which AG is connected
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* @param aClientStateNotifier pointer to AG state observer
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* @param aClientDisconnectNotifier pointer to AG disconnection observer
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*/
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CHsClient( CBluetoothSocket& aClient,
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MHsClientStateNotifier* aClientStateNotifier = NULL,
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MHsClientObserver* aClientDisconnectNotifier = NULL );
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/**
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* Constructor for performing 2nd stage construction
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*/
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void ConstructL();
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private:
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/**
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* Receives data from AG.
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*
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* @param aData received data buffer
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*
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* @leave KErrNoMemory if AG socket is NULL
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* @leave KErrDisconnected if AG is not connected
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*/
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void RawRecvL( TDes8& aData );
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/**
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* Sends data to AG.
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*
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* @param aData data to be send
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*
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* @leave KErrNoMemory if AG socket is NULL
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* @leave KErrDisconnected if AG is not connected
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* @leave KErrWrite if parameter is empty
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*/
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void RawSendL( const TDesC8& aData );
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/**
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* Sends data to AG with double buffering and init receiving when there
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* is no data to be send.
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*
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* @param aData data to be send
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*/
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void BufferedProcessL( const TDesC8& aData = KNullDesC8 );
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/**
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* Swaps sending buffers.
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*/
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void SwapBuffers();
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private:
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//Methods derived from MBluetoothSocketNotifier
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void HandleConnectCompleteL( TInt aErr );
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void HandleAcceptCompleteL( TInt aErr );
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void HandleShutdownCompleteL( TInt aErr );
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void HandleSendCompleteL( TInt aErr );
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void HandleReceiveCompleteL( TInt aErr );
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void HandleIoctlCompleteL( TInt aErr );
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void HandleActivateBasebandEventNotifierCompleteL( TInt aErr,
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TBTBasebandEventNotification& aEventNotification );
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private:
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/** AG client state enum */
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enum THsClientState
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{
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/** Idle state */
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EIdle = 0,
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/** Sending state */
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ESending,
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/** Receiving state */
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EReceiving
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};
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/** AG client's state */
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THsClientState iState;
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/** Bluetooth information receive flags */
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TInt iReceiveFlag;
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/** Bluetooth information send flags */
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TInt iSendFlag;
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/** Denotes if AG is connected */
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TBool iConnected;
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/** Length indicating how much data was read */
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TSockXfrLength iReceiveMessageLength;
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/** Receive data buffer */
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THsClientBuffer iReceiveMessageBuffer;
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/** Send data buffer */
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THsClientBuffer iSendBuf;
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/** Temporary send data buffer */
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THsClientBuffer iTempSendBuf;
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/** Bluetooth socket */
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CBluetoothSocket* iSocket;
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/** Pointer to MHsClientStateNotifier. Not owned */
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MHsClientStateNotifier* iStateNotifier;
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/** Pointer to MHsClientObserver. Not owned */
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MHsClientObserver* iClientObserver;
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};
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#endif /* HSCLIENT_H_ */
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