mmserv/tms/inc/tmsqueuehandler.h
changeset 0 71ca22bcf22a
child 3 4f62049db6ac
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mmserv/tms/inc/tmsqueuehandler.h	Tue Feb 02 01:08:46 2010 +0200
@@ -0,0 +1,117 @@
+/*
+ * Copyright (c) 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: Telephony Multimedia Service
+ *
+ */
+
+#ifndef TMS_QUEUEHANDLER_H
+#define TMS_QUEUEHANDLER_H
+
+// INCLUDES
+#include <e32base.h>
+#include <e32msgqueue.h>
+#include <glib.h>
+#include "tmsclientserver.h"   // for TmsMsgBuf
+
+namespace TMS {
+
+// FORWARD DECLARATIONS
+class TMSBuffer; //TMSDataBuffer
+class TMSGlobalContext;
+
+/**
+ *  MQueueHandlerObserver class
+ *  Responsible for sending callbacks to the TMS client app
+ */
+class MQueueHandlerObserver
+    {
+public:
+    virtual void QueueEvent(TInt aEventType, TInt aError, void* user_data) = 0;
+    };
+
+/**
+ *  CQueueHandler class
+ */
+NONSHARABLE_CLASS(CQueueHandler) : public CActive
+    {
+public:
+
+    /**
+     * NewL()
+     * Contructor
+     *
+     */
+    static CQueueHandler* NewL(RMsgQueue<TmsMsgBuf>* aMsgQueue,
+            TMSGlobalContext* glblCtx);
+
+    /**
+     * destructor
+     */
+    virtual ~CQueueHandler();
+
+    /**
+     * Start
+     * Starts listening for events.
+     *
+     */
+    void Start();
+
+    /**
+     * Returns request status.
+     */
+    TRequestStatus* Status();
+
+    TInt AddObserver(MQueueHandlerObserver& obsvr, TInt aClientId);
+    TInt RemoveObserver(MQueueHandlerObserver& obsvr);
+
+private:
+
+    /**
+     * constructor
+     */
+    CQueueHandler(RMsgQueue<TmsMsgBuf>* aMsgQueue,
+            TMSGlobalContext* glblCtx);
+
+    void ConstructL();
+
+    // from CActive
+    void DoCancel();
+    void RunL();
+    TInt RunError(TInt aError);
+    void DoFillBuffer(TInt aBufLen, TInt aStatus, TBool flag, TUint32 key);
+    void DoEmptyBuffer(TInt aBufLen, TInt aStatus, TBool flag, TUint32 key);
+    TInt FindStreamInList();
+    TInt FindGainEffectInList();
+    TInt FindVolEffectInList();
+    TMSStreamState ConvertToStreamState(TInt request);
+
+private:
+    // data
+
+    RPointerArray<MQueueHandlerObserver> iObserversList; // (not owned)
+    MQueueHandlerObserver* iObserver; //not owned
+    RArray<TInt> iClientList;
+    RMsgQueue<TmsMsgBuf>* iMsgQueue;
+
+    RChunk iChunk;
+    TPtr8 iChunkDataPtr;
+    TMSBuffer* iBuffer;
+    TMSGlobalContext *iTMSGlobalContext;
+    };
+
+} //namespace TMS
+
+#endif // TMS_QUEUEHANDLER_H
+
+// End of File