bluetoothengine/bthid/bthidserver/inc/socketwriter.h
changeset 0 f63038272f30
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/bluetoothengine/bthid/bthidserver/inc/socketwriter.h	Mon Jan 18 20:28:57 2010 +0200
@@ -0,0 +1,133 @@
+/*
+* 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 __SOCKETSWRITER_H__
+#define __SOCKETSWRITER_H__
+
+#include <es_sock.h>
+#include "timeoutnotifier.h"
+
+class CTimeOutTimer;
+class MSocketObserver;
+
+/*!
+ This class handles writing data to a socket.
+ */
+class CSocketWriter : public CActive, public MTimeOutNotifier
+    {
+public:
+    /*!
+     Create a CSocketWriter object
+     @param aSocketID ID given to the socket. Used when reporting back.
+     @param aObserver an observer for status reporting
+     @result A pointer to the created instance of CSocketWriter
+     */
+    static CSocketWriter* NewL(TUint aSocketID, MSocketObserver& aObserver);
+
+    /*!
+     Create a CSocketWriter object
+     @param aSocketID ID given to the socket. Used when reporting back.
+     @param aObserver an observer for status reporting
+     @result A pointer to the created instance of CSocketWriter
+     */
+    static CSocketWriter* NewLC(TUint aSocketID, MSocketObserver& aObserver);
+
+    /*!
+     Destroy the object and release all memory objects
+     */
+    ~CSocketWriter();
+
+    /*!
+     Write the data to the socket
+     @param aData the data to be written
+     */
+    void IssueWriteL(const TDesC8& aData);
+
+    /*!
+     Initialise the writer with a socket
+     @param aSocket socket to write to.
+     */
+    void Initialise(RSocket* aSocket);
+
+public:
+    // From MTimeOutNotifier
+
+    void TimerExpired();
+
+protected:
+    // from CActive
+    /*!
+     Cancel any outstanding operation
+     */
+    void DoCancel();
+
+    /*!
+     Called when operation complete
+     */
+    void RunL();
+
+private:
+    /*!
+     Perform the first phase of two phase construction 
+     @param aSocketID ID given to the socket. Used when reporting back.
+     @param aObserver an observer for status reporting
+     */
+    CSocketWriter(TUint aSocketID, MSocketObserver& aObserver);
+
+    /*!
+     Perform the second phase construction of a CSocketWriter 
+     */
+    void ConstructL();
+
+    /**
+     *  Write the data from the current buffer to the socket.
+     */
+    void DoWrite();
+    /**
+     *  Store data to be written in the specified buffer.
+     *  @param aData Data to be written.
+     *  @param aBuffer Which buffer to use.
+     */
+    void StoreDataL(const TDesC8& aData, TInt aBuffer);
+
+private:
+    // Member variables
+
+    /*! The maximum time allowed for a write to complete */
+    static const TInt KTimeOut;
+
+    /*! The ID of the RSocket we are working on */
+    TUint iSocketID;
+
+    /*! An observer for status reporting */
+    MSocketObserver& iObserver;
+
+    /*! The socket to write to */
+    RSocket* iSocket;
+
+    /*! Timer used to cancel a write after a predefined timeout */
+    CTimeOutTimer* iTimer;
+
+    /** Buffers to hold the data being written */
+    HBufC8* iWriteBuffer[2];
+
+    /** The buffer whose contents are currently being written */
+    TInt iCurrentBuffer;
+    };
+
+#endif // __SOCKETSWRITER_H__