browserutilities/multipartparser/inc/GzipBufMgr.h
changeset 0 dd21522fd290
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/browserutilities/multipartparser/inc/GzipBufMgr.h	Mon Mar 30 12:54:55 2009 +0300
@@ -0,0 +1,75 @@
+/*
+* Copyright (c) 2003 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of the License "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:  ?Description
+*
+*/
+
+
+#ifndef __GZIPBUFMGR_H_
+#define __GZIPBUFMGR_H_
+
+//-----------------------------------------------------------------------------
+#include <e32base.h>
+#include <EZBufMan.h>
+#include <EZGZip.h>
+#include <s32mem.h>
+
+//-----------------------------------------------------------------------------
+class CGzipStream;
+class RMemReadStream;
+
+//-----------------------------------------------------------------------------
+class GZipBufMgr : public MEZBufferManager
+    {
+    public:
+        // Constructor and Destructor
+        static GZipBufMgr* NewL(TPtrC8 in);
+        virtual ~GZipBufMgr();
+
+        // Overridden virtual methods from MEZBufferManager
+        void InitializeL(CEZZStream &aZStream);
+        void NeedInputL(CEZZStream &aZStream);
+        void NeedOutputL(CEZZStream &aZStream);
+        void FinalizeL(CEZZStream &aZStream);
+        
+        // Public methods
+        void ReadGZipHeaderL(TEZGZipHeader& aHeader);
+        void ReadStringIntoDescriptorL(RMemReadStream& aMem, HBufC8 **aDes) const;
+        void SetGZipBuffer(TPtrC8 data);
+
+    private:
+        void ConstructL();
+        GZipBufMgr(TPtrC8 in);
+
+        /// Always points to start of the input Buffer
+        TPtrC8	iInput;
+
+        // Always points to start of the output Buffer
+        TPtr8	iOutputDes;
+        HBufC8*	iOutput;
+        
+        // Used by the virtual methods from MEZBufferManager
+        TBool	iNeedInput;
+        TBool	iNeedOutput;
+        TBool	iFinalized;
+
+        // Marks the start of the data, after the header
+        TUint   iOffset;
+
+        // Magic GZip numbers
+        TUint8  iID1;
+        TUint8  iID2;
+    };
+
+#endif // !__GZIPBUFMGR_H_