diff -r 000000000000 -r 63b37f68c1ce connectivitylayer/usbphonetlink/usbpnserver_exe/inc/cusbpnusbsender.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/connectivitylayer/usbphonetlink/usbpnserver_exe/inc/cusbpnusbsender.h Fri Nov 06 17:28:23 2009 +0000 @@ -0,0 +1,130 @@ +/* +* Copyright (c) 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: +* +*/ + + +#ifndef CUSBPNUSBSENDER_H +#define CUSBPNUSBSENDER_H + +// INCLUDES +#include // For CActive + +// CONSTANTS +// MACROS +// DATA TYPES +// FUNCTION PROTOTYPES +// FORWARD DECLARATIONS +class RDevUsbcClient; +class MUsbPnBufferListener; +class CUsbPnPacket; + +// CLASS DECLARATION + +/** +* Sends received messages to USB +*/ +class CUsbPnUsbSender : public CActive + { + public: // Constructors and destructor + + /** + * Two-phased constructor. + */ + static CUsbPnUsbSender* NewL( MUsbPnBufferListener&, RDevUsbcClient& ); + + /** + * Destructor. + */ + ~CUsbPnUsbSender(); + + public: // New functions + + /** + * Adds message to sending queue. + * @param CUsbPnPacket& aPacket. Cell of circular buffer holding received data. + */ + void Send( CUsbPnPacket& aPacket ); + + /** + * Get next free packet from pool. + * @return reference to usable packet for receiver. + */ + CUsbPnPacket& PacketL(); + + + protected: // Functions from base classes + + /** + * From CActive + */ + void DoCancel(); + + /** + * From CActive + */ + void RunL(); + + /** + * From CActive + */ + TInt RunError( TInt ); + + + private: + + /** + * C++ default constructor. + */ + CUsbPnUsbSender( MUsbPnBufferListener&, RDevUsbcClient& ); + + /** + * By default Symbian 2nd phase constructor is private. + */ + void ConstructL(); + + /** + * Creates packet object. + */ + void AddPacketBufferL( TInt ); + + /** + * Writes oldest message from queue. + */ + void TryToSendPacket( const CUsbPnPacket& ); + + + private: // Data + + // Transfer mechanism observer + MUsbPnBufferListener& iBufferListener; + + // Reference to USB driver LDD. + RDevUsbcClient& iLdd; + + // Number of packets in queue + TUint iPacketCount; + + // Ownership. Newest packet -marker of circular buffer. Packets added to this 'end' of pool. + CUsbPnPacket* iPacket; + + // Pointer to oldest packet -marker of circular buffer. Packets written from this 'end' of pool. + CUsbPnPacket* iCurrentPacket; + + }; + +#endif // CUSBPNUSBSENDER_H + +// End of File