--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/bluetoothengine/bthid/bthidengplugin/inc/genericactive.h	Mon Jan 18 20:28:57 2010 +0200
@@ -0,0 +1,154 @@
+/*
+* Copyright (c) 2008 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:  An Active Object offering its request status for any
+ *                asynchronous request handling.
+ *
+*/
+
+
+#ifndef C_GENERICACTIVE_H
+#define C_GENERICACTIVE_H
+
+//  INCLUDES
+#include <e32base.h>
+
+class CGenericActive;
+
+/**
+ * The observer of CGenericActive's request events
+ *
+ * This class defines the interface to handle request events from CGenericActive.
+ *
+ * @since S60 v3.1
+ */
+class MGenericActiveObserver
+    {
+
+public:
+
+    /**
+     * Called by CGenericActive::RunL() to handle the request completion event.
+     *
+     * @since S60 v3.1
+     * @param aActive the Active Object to which the request is assigned to.
+     */
+    virtual void RequestCompletedL(CGenericActive& aActive) = 0;
+
+    /**
+     * alled by CGenericActive::RunL() to handle the cancellation of an outstanding request.
+     *
+     * @since S60 v3.1
+     * @param aActive the Active Object to which the request is assigned to.
+     */
+    virtual void CancelRequest(CGenericActive& aActive) = 0;
+
+    };
+
+/**
+ *
+ * CGenericActive provides TRequestStatus for an async operation but it doesn't know the
+ * detail of the request. CGenericActive could be used to implement timers, P&S subscribes 
+ * that are "simple" enough operations. 
+ *
+ * @since S60 v3.1
+ */
+class CGenericActive : public CActive
+    {
+
+public:
+
+    static CGenericActive* New(MGenericActiveObserver& aObserver,
+            CActive::TPriority aPriority, TInt aRequestId);
+
+    static CGenericActive* NewL(MGenericActiveObserver& aObserver,
+            CActive::TPriority aPriority, TInt aRequestId);
+
+    virtual ~CGenericActive();
+
+public:
+
+    /**
+     * Calls SetActive().
+     *
+     * @since S60 v3.1
+     */
+    virtual void GoActive();
+
+    /**
+     * Gets the identifier of the request that this active object is serving.
+     *
+     * @since S60 v3.1
+     * @return the request identifier
+     */
+    TInt RequestId() const;
+
+    /**
+     * Gets the identifier of the request that this active object is serving.
+     *
+     * @since S60 v3.1
+     * @param the request identifier
+     */
+    void SetRequestId(TInt aRequestId);
+
+    TRequestStatus& RequestStatus();
+
+protected:
+
+    /**
+     * From CActive. 
+     * cancels the outstanding request.
+     *
+     * @since S60 v3.1
+     */
+    virtual void DoCancel();
+
+    /**
+     * From CActive. 
+     * Handles the request completion event.
+     *
+     * @since S60 v3.1
+     */
+    virtual void RunL();
+
+    /**
+     * From CActive. 
+     * Handles the leave from RunL().
+     *
+     * @since S60 v3.1
+     * @param aError the leave code in RunL()
+     * @return the error code to Active Scheduler
+     */
+    virtual TInt RunError(TInt aError);
+
+protected:
+
+    CGenericActive(MGenericActiveObserver& aObserver,
+            CActive::TPriority aPriority, TInt aRequestId);
+
+private:
+
+    /**
+     * The observer which is interested in the request handling events.
+     * Not own.
+     */
+    MGenericActiveObserver& iObserver;
+
+    /**
+     * The request identifier assigned to this active object.
+     */
+    TInt iRequestId;
+
+    };
+
+#endif  // C_GENERICACTIVE_H