mediator/inc/Client/MediatorCommandResponderBody.h
changeset 0 4e1aa6a622a0
child 10 1fc153c72b60
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mediator/inc/Client/MediatorCommandResponderBody.h	Tue Feb 02 00:53:00 2010 +0200
@@ -0,0 +1,218 @@
+/*
+* Copyright (c) 2005 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 implementation class for responding to Mediator Service commands.
+*
+*/
+
+#ifndef MEDIATORCOMMANDRESPONDERBODY_H
+#define MEDIATORCOMMANDRESPONDERBODY_H
+
+// INCLUDES
+#include <e32base.h>
+
+#include "MediatorServerClient.h"
+#include "MediatorCommandResponder.h"
+#include "MediatorServiceDefs.h"
+
+// NAMESPACE
+using namespace MediatorService;
+
+// CONSTANTS
+
+// FORWARD DECLARATIONS
+class RMediatorServerSession;
+
+// CLASS DECLARATION
+
+/**
+*  A class used to respond to Mediator Service commands.
+*
+*  @lib MediatorClient.lib
+*  @since S60 3.1
+*/
+NONSHARABLE_CLASS(CMediatorCommandResponderBody) : public CActive
+	{
+    public:  // Constructors and destructor
+        
+        /**
+        * Two-phased constructor.
+        *
+        * @param aObserver  mediator command observer
+        * @return a new CMediatorCommandResponderBody instance
+        */       
+        static CMediatorCommandResponderBody* NewL(
+            MMediatorCommandObserver* aObserver );
+        
+        /**
+        * Destructor.
+        */
+        virtual ~CMediatorCommandResponderBody();
+
+    public: // Command registration
+
+        /**
+        * Register a command category. After registering the category 
+        * all commands from the category may be initiated.
+        * 
+        * @since S60 3.1  
+        * @param aDomain    The identifier of the domain      
+        * @param aCategory  The identifier of the category.
+        * @param aCommands  The list of commands to be registered.
+        * @return TInt      an error value.
+        */
+        TInt RegisterCommand( TUid aDomain,
+                              TUid aCategory, 
+                              const RCommandList& aCommands );
+
+        /**
+        * Register a command. After registering the command it may be
+        * initiated.
+        * 
+        * @since S60 3.1   
+        * @param aDomain    The identifier of the domain      
+        * @param aCategory  The identifier of the category.
+        * @param aCommandId The identifier of the category.
+        * @param aVersion   The version of the command
+        * @param aCaps      Capabilities required for initiating the command.
+        * @param aTimeout   The timeout value for waiting a response for the 
+        *                   command. This is given in milliseconds (ms).
+        * @return TInt      an error value.
+        */
+        TInt RegisterCommand( TUid aDomain, 
+                              TUid aCategory, 
+                              TInt aCommandId, 
+                              TVersion aVersion,
+                              TCapabilitySet aCaps, 
+                              TInt aTimeOut );
+
+        /**
+        * Unregister a command category.
+        *
+        * @since S60 3.1
+        * @param aDomain    The identifier of the domain         
+        * @param aCategory  The identifier of the category.
+        * @param aCommands  List of commands to be unregistered.
+        * @return TInt      an error value.
+        */
+        TInt UnregisterCommand( TUid aDomain, 
+                                TUid aCategory,
+                                const RCommandList& aCommands );
+
+        /**
+        * Unregister a command.
+        *
+        * @since S60 3.1  
+        * @param aDomain    The identifier of the domain       
+        * @param aCategory  The identifier of the category.
+        * @param aCommandId The identifier of the category.
+        * @return TInt      an error value.
+        */
+        TInt UnregisterCommand( TUid aDomain, 
+                                TUid aCategory, 
+                                TInt aCommandId );
+
+
+    public: // Command responding
+
+        /**
+        * Issue a response to a command.
+        * 
+        * @since S60 3.1  
+        * @param aDomain    The identifier of the domain       
+        * @param aCategory  The identifier of the category.
+        * @param aCommandId The identifier of the command.
+        * @param aStatus    Result status of the command.
+        * @param aData      The parameters of the response.        
+        * @return TInt      an error value.
+        */
+        TInt IssueResponse( TUid aDomain,
+                            TUid aCategory, 
+                            TInt aCommandId,
+                            TInt aStatus, 
+                            const TDesC8& aData );
+        
+    private: // From CActive
+    
+        /**
+        * From CActive::RunL
+        */
+        void RunL();
+        
+        /**
+        * From CActive::DoCancel()
+        */
+        void DoCancel();
+    
+    private: // new functions
+        
+        /**
+        * Start to receive commands asynchronously
+        *
+        * @since S60 3.1
+        * @return None.
+        */
+        void StartCommandReceiving();
+        
+        /**
+        * Re-init return data buffer
+        *
+        * @since S60 3.1
+        * @param aSize size of the buffer
+        * @return None.
+        */
+        void ResetDataBufferL( TInt aSize );
+        
+    private:
+    
+        /**
+        * C++ default constructor.
+        *
+        * @param mediator command observer
+        */
+        CMediatorCommandResponderBody( MMediatorCommandObserver* aObserver );
+
+        /**
+        * By default Symbian 2nd phase constructor is private.
+        */
+        void ConstructL();
+
+    private: // Data
+
+        // A session class to mediator server
+        RMediatorServer     iMediatorServer;
+        
+        // Observer for event callbacks (not owned)
+        MMediatorCommandObserver*   iObserver;
+        
+        // Domain/Category cata for incoming event
+        TMediatorCategory           iCategory;
+        TMediatorCategoryRetBuffer  iCategoryBuffer;
+        
+        // Command Id data
+        MediatorService::TCommand   iCommand;
+        TCommandRetBuffer           iCommandBuffer;
+        
+        // Command data to be received
+        HBufC8*                     iCommandData; 
+        // Pointer to command data.
+        TPtr8                       iCommandDataPtr;
+        
+        // Stores information whether destructor has been called, checked in RunL
+        TBool* iDestroyed;
+        
+	};
+
+#endif      // MEDIATORCOMMANDRESPONDERBODY_H
+            
+// End of File