Msrp/MsrpServer/inc/MMSRPWriterObserver.h
branchMSRP_FrameWork
changeset 25 505ad3f0ce5c
child 58 cdb720e67852
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Msrp/MsrpServer/inc/MMSRPWriterObserver.h	Sat Jun 12 14:30:11 2010 +0530
@@ -0,0 +1,76 @@
+/*
+* Copyright (c) 2009-2010 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:
+* MSRP Implementation
+*
+*/
+
+#ifndef __MMMSRPWRITEROBSERVER_H
+#define __MMMSRPWRITEROBSERVER_H
+
+// CLASS DECLARATIONS
+/**
+* Interface for notifying about socket writer events
+*/
+class MMSRPWriterObserver
+	{
+	public:
+    
+    enum TWriteStatus
+        {
+        EMsrpSocketWrite = 0,//EComplete, EInterrupted, EPending_bufferfull
+        EMsrpAvoidSocketWrite, //EPending_buffernotfull 
+        };  
+	    
+	enum TMsgStatus
+	    {
+        EUndefined = 0,
+	    EPending, //Sending incomplete. Same observer is called again immediately
+	    EComplete, //No more to send. A new observer is called, this is removed 
+	    EInterrupted //There is more to send. Same observer called later
+	    };	
+	
+	    /**
+	     * Called by writer to fetch the content to send
+	     * @param aData Output param, Points to data to be sent 
+	     * @param aInterrupt Signals whether other msgs are queued waiting to be sent
+	     * @return KErrNone or system wide eror codes 
+	     */	    
+	    virtual TWriteStatus GetSendBufferL( TPtrC8& aData, TBool aInterrupt ) = 0;
+
+	   /**           
+        * Called when the message has been written to the socket
+		* @param aSendstatus status of the write operation, communicates prev send result
+        * @return Indicates which observer has to be called the next time                 
+        */
+	    virtual TMsgStatus WriteDoneL(TInt aStatus ) = 0;
+	};
+
+
+class MMSRPWriterErrorObserver
+    {
+    public:
+        
+        /**
+         * socket errors detected on write arent msg specific
+         * Hence the observer has been separated
+         * The observer is expected to be implemented in connection and handled as a connection error
+         */
+        
+        virtual void WriteSocketError(TInt aError) = 0;
+    };
+
+
+
+#endif // __MMMSRPWRITEROBSERVER_H
+
+// End of file