--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/realtimenetprots/sipfw/SigComp/SigCompEngine/inc/Compressor.h	Tue Feb 02 01:03:15 2010 +0200
@@ -0,0 +1,108 @@
+/*
+* Copyright (c) 2003-2009 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:
+* Name        : Compressor.h
+* Part of     : deflatecomp
+* CSigCompCompressor, ecom plugins framework
+* Version     : 1.0
+*
+*/
+
+
+
+
+/**
+ @internalComponent
+*/
+
+#ifndef SIGCOMPCOMPRESSOR_H
+#define SIGCOMPCOMPRESSOR_H
+
+#include <ecom/ecom.h>
+#include <badesca.h>
+
+class MSigCompStateMgr;
+class MSigCompCompartmentContext;
+class TStateItem;
+
+const TUid KCompressorInterfaceUid = {0x101F5D38};
+
+class CSigCompCompressor : public CBase
+    {
+    public:
+        class TCompressorInitParams
+            {
+            public:
+                /** statemgr interface */
+                MSigCompStateMgr* iStateMgr;
+                /** state item user provided when starting sigcomp, dictionary
+                *   usually
+                */
+                TStateItem* iStateItem;
+                /** length user provided for the given state */
+                TInt iStateItemLength;
+                /** upload state? */
+                TBool iUploadState;
+            };
+
+    public:
+        static CSigCompCompressor* NewL(const TDesC8& aMatchString,
+                                          MSigCompStateMgr* aStateMgr,
+                                          TStateItem* aStateItem,
+                                          TInt aStateItemLength,
+                                          TBool aUploadState);
+
+        static CSigCompCompressor* NewL(const TDesC8& aMatchString,
+                                          MSigCompStateMgr* aStateMgr);
+
+        virtual ~CSigCompCompressor();
+
+        /**
+        * This function compresses given message, and outputs complete
+        * sigcomp message.
+        * 
+        * @param aCompartmentContext compartment context
+        * @param aMessage Message to compress.
+        * @param aForStreamBasedProtocol indicates what kind of
+        *                       protocol is used (a delimeter at
+        *                       the end of message
+        *                       is added based on this parameter).
+        *
+        * @return complete sigcomp message, the ownership is transferred
+        * @leave ECompressionFailure if aMessage.Length() == 0
+        */ 
+        virtual CBufBase* CompressMessageL(
+                              MSigCompCompartmentContext* aCompartmentContext,
+                              const TDesC8& aMessage,
+                              TBool aForStreamBasedProtocol) = 0;
+
+        /**
+        * This method is used to ask compressor whenever it supports
+        * dynamic compression or not
+        *
+        * @return ETrue if it supports dynamic compression, EFalse otherwise
+        */
+        virtual TBool IsDynamicCompressionSupported() = 0;
+
+    protected:
+        inline CSigCompCompressor();
+
+    private:
+        /** unique key */
+        TUid iUniqueKey; 
+    };
+
+#include "Compressor.inl"
+
+#endif