--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/filehandling/fileconverterfw/SRC/INBUF.CPP Tue Feb 02 10:12:00 2010 +0200
@@ -0,0 +1,112 @@
+// Copyright (c) 1997-2009 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:
+//
+
+#include <e32base.h>
+#include <e32def.h>
+
+#include <f32file.h> // for CFileImportBuffer
+#include <s32file.h>
+#include <s32stor.h>
+
+#include <inbuf.h>
+
+//
+// class CImportBufferBase
+//
+
+EXPORT_C CImportBufferBase::CImportBufferBase(TInt aSize)
+ :iMaxSize(aSize)
+ {}
+
+EXPORT_C CImportBufferBase::~CImportBufferBase()
+ {
+ delete iImportBuffer;
+ }
+
+EXPORT_C void CImportBufferBase::ConstructL()
+ {
+ iImportBuffer=HBufC8::NewL(iMaxSize);
+ ResetImportBuffer();
+ }
+
+EXPORT_C void CImportBufferBase::ResetImportBuffer()
+//
+ {
+ iReadPtr=CONST_CAST(TText8*,iImportBuffer->Ptr());
+ iTBase=iReadPtr;
+ iEndBuf=iReadPtr;
+ }
+
+EXPORT_C void CImportBufferBase::ResetReadPtr()
+ {
+ iReadPtr=iTBase;
+ }
+
+EXPORT_C TInt CImportBufferBase::ReadL(TText8& aByte)
+ {
+ if (iReadPtr == iEndBuf)
+ {
+ TInt err = FillImportBuf();
+ if (err)
+ return err;
+ }
+ aByte = *(iReadPtr++);
+ return KErrNone;
+ }
+
+EXPORT_C TInt CImportBufferBase::SeekL(TSeek /*aSeekMode*/, TInt /*anOffset*/)
+ {
+ // not implemented
+ return KErrNotSupported;
+ }
+
+EXPORT_C TInt CImportBufferBase::MaxSize()
+ {
+ return iMaxSize;
+ }
+
+EXPORT_C void CImportBufferBase::SetLength(TInt aLength)
+ {
+ iEndBuf=iTBase+aLength;
+ }
+
+//
+// class CFileImportBuffer
+//
+
+EXPORT_C CFileImportBuffer::CFileImportBuffer(RFile aSource, TInt aMaxSize)
+ : CImportBufferBase(aMaxSize), iSource(aSource)
+ {}
+
+EXPORT_C TInt CFileImportBuffer::SeekL(TSeek aSeekMode, TInt anOffset)
+ {
+ TInt err=iSource.Seek(aSeekMode, anOffset);
+ if (err==KErrNone)
+ return FillImportBuf();
+ else
+ return err;
+ }
+
+EXPORT_C TInt CFileImportBuffer::FillImportBuf()
+ {
+ TPtr8 buf=iImportBuffer->Des();
+ iSource.Read(buf,MaxSize());
+ SetLength(buf.Length());
+ ResetReadPtr();
+ if (buf.Length() == 0)
+ return KErrEndOfInput;
+ else
+ return KErrNone;
+ }