1 /*

     2 * Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 *

     5 * This program is free software: you can redistribute it and/or modify

     6 * it under the terms of the GNU Lesser General Public License as published by

     7 * the Free Software Foundation, version 2.1 of the License.

     8 * 

     9 * This program is distributed in the hope that it will be useful,

    10 * but WITHOUT ANY WARRANTY; without even the implied warranty of

    11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

    12 * GNU Lesser General Public License for more details.

    13 *

    14 * You should have received a copy of the GNU Lesser General Public License

    15 * along with this program.  If not, 

    16 * see "http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html/".

    17 *

    18 * Description:  Observer class used for callback of async requests

    19 *

    20 */

    21 

    22 #ifndef M_XQSERVICE_IPC_OBSERVER

    23 #define M_XQSERVICE_IPC_OBSERVER

    24 

    25 #include <QtCore>

    26 

    27 namespace QtService {

    28     

    29     class ServiceIPCRequest;

    30     

    31     /**

    32      *  Interface Observer class to handle IPC related events

    33      */

    34     class MServiceIPCObserver

    35     {

    36     public:

    37 

    38         /**

    39          * Handle a new request.

    40          * @param aRequest request object, ownership NOT passed

    41          * @return bool true if handled

    42          */

    43         virtual bool handleRequest(ServiceIPCRequest *aRequest) = 0;

    44     

    45         /**

    46          * Handle cancellation of the given request object.

    47          * @param aRequest request object that is going to be cancelled, ownership NOT passed

    48          * @return void

    49          */

    50         virtual void handleCancelRequest(ServiceIPCRequest *aRequest) = 0;

    51 

    52         /**

    53          * About to delete the given request object. Observer can make necessary cleanup.

    54          * @param aRequest request object that is going to be cancelled, ownership NOT passed

    55          *                 Object will be deleted after callback returns

    56          * @return void

    57          */

    58         virtual void handleDeleteRequest(ServiceIPCRequest *aRequest) = 0;

    59         

    60     };

    61 

    62 }

    63 #endif // M_XQSERVICE_IPC_OBSERVER