--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/localconnectivityservice/dun/utils/inc/DunStream.h	Tue Aug 31 16:03:15 2010 +0300
@@ -0,0 +1,229 @@
+/*
+* Copyright (c) 2007 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:  Definitions needed for common stream functionality
+*
+*/
+
+
+#ifndef C_CDUNSTREAM_H
+#define C_CDUNSTREAM_H
+
+#include "DunTransporter.h"
+
+/**
+ *  Class for common stream functionality
+ *
+ *  @lib dunutils.lib
+ *  @since S60 v3.2
+ */
+NONSHARABLE_CLASS( CDunStream ) : public CActive
+    {
+
+public:
+
+    /**
+     * Resets data to initial values
+     *
+     * @since S60 3.2
+     * @return None
+     */
+    void ResetData();
+
+    /**
+     * Adds error code to consider as "no error" to either endpoint
+     *
+     * @since S60 3.2
+     * @param aError Error code to add
+     * @param aOperationType Type of operation for which to add error
+     *                       (read or write)
+     * @return Symbian error code on error, KErrNone otherwise
+     */
+    TInt AddSkippedError( TInt aError, TDunOperationType aOperationType );
+
+    /**
+     * Adds callback for line status change controlling
+     * The callback will be called when serious read error is detected
+     *
+     * @since S60 3.2
+     * @param aCallback Callback to call when read error occurs
+     * @param aOperationType Type of operation for which to add error
+     *                       (read or write)
+     * @return Symbian error code on error, KErrNone otherwise
+     */
+    TInt AddConnMonCallback( MDunConnMon* aCallback,
+                             TDunOperationType aOperationType );
+
+    /**
+     * Sets buffering for this stream
+     *
+     * @since S60 3.2
+     * @param aBufferPtr Pointer to the buffer
+     * @return KErrGeneral if buffer pointer null, KErrNone otherwise
+     */
+    TInt SetBuffering( TPtr8* aBufferPtr );
+
+    /**
+     * Sets media to be used for this endpoint
+     *
+     * @since S60 3.2
+     * @param aComm RComm pointer to use as the endpoint
+     * @param aMediaContext Media context to use for this endpoint, either
+     *                      local or network
+     * @return Symbian error code on error, KErrNone otherwise
+     */
+    TInt SetMedia( RComm* aComm, TDunMediaContext aMediaContext );
+
+    /**
+     * Sets media to be used for this endpoint
+     *
+     * @since S60 3.2
+     * @param aSocket RSocket pointer to use as the endpoint
+     * @param aMediaContext Media context to use for this endpoint, either
+     *                      local or network
+     * @return Symbian error code on error, KErrNone otherwise
+     */
+    TInt SetMedia( RSocket* aSocket, TDunMediaContext aMediaContext );
+
+    /**
+     * Gets media context
+     *
+     * @since S60 3.2
+     * @param aStreamType Stream type
+     * @return Media context in use
+     */
+    TDunMediaContext GetMediaContext( TDunStreamType aStreamType );
+
+protected:
+
+    CDunStream();
+
+    /**
+    * Destructor.
+    */
+    virtual ~CDunStream();
+
+    /**
+     * Check whether an error code is severe error or not
+     *
+     * @since S60 3.2
+     * @param aError Error code to check for severity
+     * @param aIsError ETrue if error code is error, EFalse if not error
+     * @return ETrue if severe error detected, EFalse if not severe error
+     */
+    TBool ProcessErrorCondition( TInt aError, TBool& aIsError );
+
+// from base class CActive
+
+    /**
+     * From CActive.
+     * Gets called when endpoint data read/write complete
+     *
+     * @since S60 3.2
+     * @return None
+     */
+    virtual void RunL() {};
+
+    /**
+     * From CActive.
+     * Gets called on cancel
+     *
+     * @since S60 3.2
+     * @return None
+     */
+    virtual void DoCancel() {};
+
+private:
+
+    /**
+     * Initializes this class
+     *
+     * @since S60 3.2
+     * @return None
+     */
+    void Initialize();
+
+protected:  // data
+
+    /**
+     * Pointer to stream's data buffer: upstream or downstream
+     * Not own.
+     */
+    TPtr8* iBufferPtr;
+
+    /**
+     * Callback(s) to call when notification(s) via MDunConnMon to be made
+     * These callbacks are called on read failures
+     */
+    RPointerArray<MDunConnMon> iCallbacksR;
+
+    /**
+     * Callback(s) to call when notification(s) via MDunConnMon to be made
+     * These callbacks are called on write failures
+     */
+    RPointerArray<MDunConnMon> iCallbacksW;
+
+    /**
+     * Read length set when RSocket::RecvOneOrMore() request completes
+     */
+    TSockXfrLength iReadLengthSocket;
+
+    /**
+     * Type of current operation: read or write
+     */
+    TDunOperationType iOperationType;
+
+    /**
+     * Current state of transfer: active or inactive
+     */
+    TDunState iTransferState;
+
+    /**
+     * Direction of data transfer
+     * This is set after iStreamType and iOperationType are known
+     */
+    TDunDirection iDirection;
+
+    /**
+     * Array of error codes that will be skipped for read operations
+     */
+    RArray<TInt> iOkErrorsR;
+
+    /**
+     * Array of error codes that will be skipped for write operations
+     */
+    RArray<TInt> iOkErrorsW;
+
+    /**
+     * RComm object of network side
+     * Not own.
+     */
+    RComm* iNetwork;
+
+    /**
+     * RSocket object of local media side
+     * If this is set then iComm is not used
+     * Not own.
+     */
+    RSocket* iSocket;
+
+    /**
+     * RComm object of local media side
+     * If this is set then iSocket is not used
+     * Not own.
+     */
+    RComm* iComm;
+
+    };
+
+#endif  // C_CDUNSTREAM_H