compressionlibs/ziplib/inc/ezfilebuffer.h
changeset 0 e4d67989cc36
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/compressionlibs/ziplib/inc/ezfilebuffer.h	Tue Feb 02 02:01:42 2010 +0200
@@ -0,0 +1,64 @@
+// Copyright (c) 1999-2009 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:
+// Declaration for FileBufferManager class which facilitates the aynchronous compression and 
+// decompression of data streams.
+// 
+//
+
+#ifndef __EZFILEBUFFERMANAGER_H__
+#define __EZFILEBUFFERMANAGER_H__
+
+#include <e32base.h>
+#include <f32file.h>
+
+#include <ezbufman.h>
+
+/**
+Concrete class to manage the input and output buffers for compression and de-compression
+
+@publishedAll
+@released
+*/
+class CEZFileBufferManager : public CBase, public MEZBufferManager
+	{
+public:
+
+	enum { EBadInitialization = 1 };
+
+public:
+	~CEZFileBufferManager();
+	IMPORT_C static CEZFileBufferManager* NewLC(RFile &aInput, RFile &aOutput, TInt aBufferSize = 0x8000);
+	IMPORT_C static CEZFileBufferManager* NewL(RFile &aInput, RFile &aOutput, TInt aBufferSize = 0x8000);
+
+	void InitializeL(CEZZStream &aZStream);
+	void NeedInputL(CEZZStream &aZStream);
+	void NeedOutputL(CEZZStream &aZStream);
+	void FinalizeL(CEZZStream &aZStream);
+
+protected:
+	void ConstructL(TInt aBufferSize);
+	CEZFileBufferManager(RFile &aInput, RFile &aOutput);
+
+protected:
+	RFile &iInputFile;
+	RFile &iOutputFile;
+	TInt iBufferSize;
+	TUint8* iInputBuffer;
+	TUint8* iOutputBuffer;
+	TPtr8 iInputDescriptor;  // always points to start of the input Buffer
+	TPtr8 iOutputDescriptor; // always points to start of the output Buffer
+	};
+
+
+#endif