--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/webengine/osswebengine/WebCore/platform/network/symbian/FileReader.h	Mon Mar 30 12:54:55 2009 +0300
@@ -0,0 +1,165 @@
+/*
+* Copyright (c) 2006 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:  Definition of CFileReader
+*
+*/
+
+#ifndef CFILEREADER_H
+#define CFILEREADER_H
+
+//  INCLUDES
+#include <e32base.h>
+#include <f32file.h>
+
+// CONSTANTS
+
+// MACROS
+
+// DATA TYPES
+enum TFileEvent
+    {
+    EGotResponseBodyData,
+    ESucceeded,
+    EFailed
+    };
+
+// FUNCTION PROTOTYPES
+
+// FORWARD DECLARATIONS
+class FileConnection;
+
+// CLASS DECLARATION
+
+/**
+*  This is a simple incremental file reader.
+*  @lib resLoader.lib
+*  @since 3.1
+*/
+class CFileReader : public CActive
+    {
+    public:  // Constructors and destructor        
+        
+        /**
+        * Two-phased constructor.
+        * @since 3.1
+        * @param aFile File to read.
+        * @param aChunkSize Chunk size to be read in one turn.
+        * @param aFileReaderCallback Observer object-file transaction.
+        * @return File reader object
+        */
+        static CFileReader* NewL( RFile& aFile, TInt aChunkSize, FileConnection* aFileConnection );
+        
+        /**
+        * Destructor.
+        */
+        virtual ~CFileReader();
+
+    public: // New functions
+
+        /**
+        * Start reading the file from the beginning.
+        * @since 3.1
+        * @param 
+        * @return void
+        */
+        void StartReading();
+
+        /**
+        * Stop reading 
+        * @since 3.1
+        * @param 
+        * @return void
+        */
+        void StopReading();
+
+        /**
+        * Get partial body buffer.
+        * @since 3.1
+        * @param aChunkBuffer Pointer to the partial body buffer
+        * @return void
+        */
+        void GetChunkBuffer( TPtrC8& aChunkBuffer );
+
+        /**
+        * Purge the chunk buffer.
+        * @since 3.1
+        * @param 
+        * @return void
+        */
+        void ReleaseChunkBuffer();
+
+    public: // from CActive
+
+        /**
+        * Cancel active object
+        * @since 3.1
+        * @param
+        * @return void
+        */
+        void DoCancel();
+
+        /**
+        * Asynchronous handling of transaction events.
+        * @since 3.1
+        * @param 
+        * @return void
+        */
+        void RunL();
+
+    private:
+
+        /**
+        * Construct.
+        * @since 3.1
+        * @param aFile File to read.
+        * @param aChunkSize Chunk size to be read in one turn.
+        * @param aFileReaderCallback Observer object-file transaction.
+        * @return void
+        */
+        CFileReader( RFile& aFile, TInt aChunkSize, FileConnection* aFileConnection );
+
+        /**
+        * By default Symbian 2nd phase constructor is private.
+        */
+        void ConstructL();
+    
+        /**
+        * Read from the file from the current position.
+        * @since 3.1
+        * @param 
+        * @return void
+        */
+        void ReadFile();
+
+    private:    // Data
+
+        // file to read
+        RFile         m_file;
+        // actual file position 
+        TInt          m_filePos;
+        // chunk size to read in one turn
+        TInt          m_chunkSize;
+        // chunk buffer
+        HBufC8*       m_chunkBuffer;
+        // observer object
+        FileConnection* m_fileConnection;
+        // pointer to the chunk buffer
+        TPtr8         m_chunkBufPtr;
+        // ETrue if the file transaction is cancelled
+        TBool         m_stopReading;
+  };
+
+#endif      // CFILEREADER_H
+            
+// End of File