--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/javauis/mmapi_akn/audiostreaming/src.mmf/cmmastreamhandler.cpp	Tue Apr 27 16:30:29 2010 +0300
@@ -0,0 +1,223 @@
+/*
+* Copyright (c) 2002-2007 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:  Streams data from Java to controller
+*
+*/
+
+
+//  INCLUDE FILES
+#include <mmf/server/mmfdes.h>
+#include <audiopreference.h>
+#include <jdebug.h>
+
+#include "CMMAStreamHandler.h"
+#include "CMMADataSourceStream.h"
+#include "CMMAEventSource.h"
+
+CMMAStreamHandler* CMMAStreamHandler::NewL(
+    MMMAStreamHandlerListener& aListener,
+    RMMFController& aController)
+{
+    CMMAStreamHandler* self = new(ELeave) CMMAStreamHandler(aListener,
+            aController);
+    self->ConstructL();
+    return self;
+}
+
+CMMAStreamHandler::~CMMAStreamHandler()
+{
+    iRequests.ResetAndDestroy();
+}
+
+CMMAStreamHandler::CMMAStreamHandler(MMMAStreamHandlerListener& aListener,
+                                     RMMFController& aController):
+        iController(aController),
+        iListener(aListener)
+{
+    // ignore read/write completed before stream is prepared
+    iState = EMMAStreamPaused;
+}
+
+void CMMAStreamHandler::ConstructL()
+{
+    // create requests
+    for (TInt i = 0; i < KMMAStreamHandlerBufferCount; i++)
+    {
+        CMMAStreamRequest* requestToAppend = CMMAStreamRequest::NewLC(this);
+        iRequests.AppendL(requestToAppend);
+        CleanupStack::Pop(requestToAppend);
+    }
+}
+
+void CMMAStreamHandler::PrepareL()
+{
+    DEBUG_INT("MMA::CMMAStreamHandler::PrepareL state %d", iState);
+    iState = EMMAStreamPrepare;
+
+    //reset request data for reading again from beginning
+    iRequests[0]->DataPtr().SetLength(0);
+
+    // when read completes iListerner.PrepareComplete will be called
+    iSourceStream->Read(iRequests[ 0 ]);
+}
+
+void CMMAStreamHandler::StartL()
+{
+    DEBUG_INT("MMA::CMMAStreamHandler::StartL state %d", iState);
+    DEBUG_INT("MMA::CMMAStreamHandler::StartL data source request=%d",
+              (TInt)iSourceStream->Request());
+
+    iState = EMMAStreamStart;
+    if (iSourceStream->Request())
+    { // when read request is completed it will be written to server
+        iState = EMMAStreamStarted;
+        iListener.StartComplete(KErrNone);
+        return;
+    }
+
+    TInt count = iRequests.Count();
+    TBool started = EFalse;
+    for (TInt i = 0; i < count && !started; i++)
+    {
+        CMMAStreamRequest* r = iRequests[ i ];
+        if (!r->IsActive() && r->DataPtr().Length() > 0)
+        {
+            DEBUG("MMA::CMMAStreamHandler::StartL write request to server");
+            DEBUG_INT("MMA::CMMAStreamHandler::StartL request length=%d",
+                      r->DataPtr().Length());
+            DEBUG_INT("MMA::CMMAStreamHandler::StartL last buffer %d",
+                      r->RequestBuffer()());
+
+            // data was not yet written to server
+            WriteRequest(r);
+            started = ETrue;
+        }
+        else if (r->IsActive())  // data is in server
+        {
+            DEBUG("MMA::CMMAStreamHandler::StartL data is in server");
+            // atleast one request is not processed
+            started = ETrue;
+        }
+    }
+    if (started)  // If allready started complete start
+    {
+        iListener.StartComplete(KErrNone);
+        iState = EMMAStreamStarted;
+    }
+    else
+    {
+        // Need to read data before start
+        iSourceStream->Read(iRequests[ 0 ]);
+    }
+}
+
+void CMMAStreamHandler::Pause()
+{
+    // ignore read/write completes
+    iState = EMMAStreamPaused;
+}
+
+TMMFMessageDestination& CMMAStreamHandler::MessageDestination()
+{
+    return iDataSourceHandle;
+}
+
+void CMMAStreamHandler::SetSourceStream(CMMADataSourceStream* aSourceStream)
+{
+    iSourceStream = aSourceStream;
+}
+
+void CMMAStreamHandler::WriteComplete(CMMAStreamRequest* aRequest)
+{
+    DEBUG_INT("MMA::CMMAStreamHandler::WriteComplete state=%d", iState);
+    DEBUG_INT("MMA::CMMAStreamHandler::WriteComplete request length=%d",
+              aRequest->DataPtr().Length());
+    DEBUG_INT("MMA::CMMAStreamHandler::WriteComplete last buffer %d",
+              aRequest->RequestBuffer()());
+    if (iState == EMMAStreamStarted)
+    {
+        if (aRequest->RequestBuffer()() == 1)
+        {
+            iState = EMMAStreamEof;
+        }
+        else
+        {
+            iSourceStream->Read(aRequest);
+        }
+    }
+    // else, all other states ignore write complete
+}
+
+void CMMAStreamHandler::ReadComplete(CMMAStreamRequest* aRequest)
+{
+    if (iState == EMMAStreamPrepare)
+    {
+        WriteRequest(aRequest);
+        iListener.PrepareComplete(KErrNone);
+        iState = EMMAStreamPaused;
+    }
+    else if (iState == EMMAStreamStart)
+    {
+        iState = EMMAStreamStarted;
+        // write first request to server
+        WriteRequest(aRequest);
+        iListener.StartComplete(KErrNone);
+    }
+    else if (iState == EMMAStreamStarted)
+    {
+        WriteRequest(aRequest);
+    }
+    // else, all other states ignore read complete
+}
+
+void CMMAStreamHandler::HandleError(CMMAStreamRequest* /*aRequest*/,
+                                    TInt aError)
+{
+    DEBUG_INT("MMA::CMMAStreamHandler::HandleError state=%d", iState);
+    if (iState == EMMAStreamPrepare)
+    {
+        iListener.PrepareComplete(aError);
+        iState = EMMAStreamPaused;
+    }
+    else if (iState == EMMAStreamStart)
+    {
+        iListener.StartComplete(aError);
+        iState = EMMAStreamStarted;
+    }
+    else
+    {
+        iListener.HandleError(aError);
+    }
+}
+
+void CMMAStreamHandler::WriteRequest(CMMAStreamRequest* aRequest)
+{
+    if (aRequest->RequestBuffer()() == 1)
+    {
+        iState = EMMAStreamEof;
+    }
+
+    if (!aRequest->IsActive())
+    {
+        aRequest->SetActive();
+    }
+
+    // Send write request to server, HandleRequestCompleteL is called when finished
+    iController.CustomCommandAsync(iDataSourceHandle,
+                                   1, /*EProcessBuffer*/
+                                   aRequest->DataPtr(),
+                                   aRequest->RequestBuffer(),
+                                   aRequest->iStatus);
+}
+//  END OF FILE