--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/bluetoothengine/bthid/bthidserver/inc/datasegmenter.h Mon Jan 18 20:28:57 2010 +0200
@@ -0,0 +1,106 @@
+/*
+* Copyright (c) 2008 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: Declares main application class.
+ *
+*/
+
+
+#ifndef __CMDSEGMENTER_H__
+#define __CMDSEGMENTER_H__
+
+#include <e32base.h>
+
+/*!
+ This utility class segments large commands into MTU size packets
+ */
+class CDataSegmenter : public CBase
+ {
+public:
+
+ /*!
+ Create a CDataSegmenter object
+ @result a pointer to the created instance of CDataSegmenter
+ */
+ static CDataSegmenter* NewL();
+
+ /*!
+ Create a CDataSegmenter object
+ @result a pointer to the created instance of CDataSegmenter
+ */
+ static CDataSegmenter* NewLC();
+
+ /*!
+ Destroy the object and release all memory objects
+ */
+ ~CDataSegmenter();
+
+ /*!
+ Prepares buffers for sending a large command, possibly in separate packets.
+ @param aInitialHeader the header to use in the first packet.
+ @param aPayload the payload section of the packet.
+ @param aAdditionalHeader the header byte to use on continuation packets.
+ @param aMTU the current MTU for a packet.
+ */
+ void SegmentDataL(const TDesC8& aInitialHeader, const TDesC8& aPayload,
+ TChar aAdditionalHeaderByte, TInt aMTU);
+
+ /*!
+ Retrieves the first packet in a sequence.
+ Function will leave if there is no data packet to return.
+ @result a pointer to the data packet
+ */
+ const HBufC8* FirstPacketL() const;
+
+ /*!
+ Retrieves the next packet in a sequence.
+ @result a pointer to the data packet
+ @result 0 if there are no more packets
+ */
+ const HBufC8* NextPacket();
+
+ /*!
+ Resets the state of the object
+ */
+ void Reset();
+
+private:
+
+ /*!
+ Constructs this object
+ */
+ CDataSegmenter();
+
+ /*!
+ Performs second phase construction of this object
+ */
+ void ConstructL();
+
+private:
+ /*! Dynamic buffer to hold a command packet */
+ HBufC8* iPacket;
+
+ /*! Dynamic buffer used to hold payload not sent in first packet */
+ HBufC8* iPayloadBuf;
+
+ /*! Pointer to the current remaining payload */
+ TPtrC8 iPayloadBufPtr;
+
+ /*! The current maximum size of a packet */
+ TInt iMTU;
+
+ /*! The header byte to use on continuation packets */
+ TChar iAdditionalHeaderByte;
+ };
+
+#endif // __CMDSEGMENTER_H__