--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mmplugins/imagingplugins/imagedisplay/plugins/mng/ChunkProcessor.cpp	Tue Feb 02 01:56:55 2010 +0200
@@ -0,0 +1,129 @@
+// Copyright (c) 2004-2009 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:
+//
+
+/** 	@file
+	@internalTechnology */
+#include <e32base.h>
+#include "InputStream.h"
+
+#include "ChunkProcessor.h"
+
+CChunkProcessor::CChunkProcessor(CMngPlayer& aMngPlayer):
+								CActive(EPriorityIdle),
+								iMngPlayer(aMngPlayer)
+	{
+	CActiveScheduler::Add(this);
+	}
+
+void CChunkProcessor::DoCancel()
+	{
+	if (iCallerRequest != NULL)
+		{
+		User::RequestComplete(iCallerRequest, KErrCancel);
+		}
+		
+	if (iStatus.Int() == KRequestPending)
+		{
+		TRequestStatus* pReq=&iStatus;
+		User::RequestComplete(pReq, KErrCancel);
+		}
+	}
+
+TInt CChunkProcessor::RunError(TInt aError)
+	{
+	NotifyCaller(aError);
+	return KErrNone;
+	}
+
+void CChunkProcessor::RunAgain()
+	{
+	if (iIsPaused)
+		{
+		ASSERT(EFalse==iNeedRunAfterResume);
+		iNeedRunAfterResume = ETrue;
+		}
+	else
+		{
+		iNeedRunAfterResume = EFalse;
+		SetActive();
+		TRequestStatus* pReq=&iStatus;
+		User::RequestComplete(pReq, KErrNone);
+		}
+	}
+
+void CChunkProcessor::Pause()
+	{
+	iIsPaused = ETrue;
+	if (iSubProcessor)
+		{
+		iSubProcessor->Pause();
+		}
+	}
+
+void CChunkProcessor::Resume()
+	{
+	iIsPaused=EFalse;
+	if (iSubProcessor)
+		{
+		iSubProcessor->Resume();
+		}
+		
+	if (iNeedRunAfterResume)
+		{
+		RunAgain();
+		}
+	}
+
+void CChunkProcessor::Stop()
+	{
+	if (iInputStream != NULL)
+		{
+		iInputStream->Release();
+		}
+	iInputStream = NULL;
+	if (iSubProcessor != NULL)
+		{
+		iSubProcessor->Stop();
+		}
+	Cancel();
+	iNeedRunAfterResume = EFalse;
+	}
+
+void CChunkProcessor::NotifyCaller(TInt aErrCode)
+	{
+	User::RequestComplete(iCallerRequest, aErrCode);
+	if (iInputStream != NULL)
+		{
+		iInputStream->Release();
+		}
+	iInputStream = NULL;
+	}
+
+void CChunkProcessor::RunL()
+	{
+	if (iStatus != KErrNone)
+		{
+		User::Leave(iStatus.Int());
+		}
+	if (iIsPaused)
+		{
+		ASSERT(EFalse==iNeedRunAfterResume);
+		iNeedRunAfterResume = ETrue;
+		}
+	else
+		{
+		DoRunL();
+		}
+	}