terminalsecurity/SCP/DmEventNotifier/inc/DmEventScheduler.h
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     1 /*
       
     2 * Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
       
     3 * All rights reserved.
       
     4 * This component and the accompanying materials are made available
       
     5 * under the terms of "Eclipse Public License v1.0"
       
     6 * which accompanies this distribution, and is available
       
     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".
       
     8 *
       
     9 * Initial Contributors:
       
    10 * Nokia Corporation - initial contribution.
       
    11 *
       
    12 * Contributors:
       
    13 *
       
    14 * Description: This header contains the class which creates the condition schedule.
       
    15 *
       
    16 */
       
    17 #ifndef __DMEVENTSCHEDULER_H__
       
    18 #define __DMEVENTSCHEDULER_H__
       
    19 
       
    20 // System Includes
       
    21 #include <e32base.h>
       
    22 #include <e32def.h>
       
    23 #include <csch_cli.h> // RScheduler
       
    24 #include <schinfo.h>  // TSchedulerItemRef, TTaskInfo... 
       
    25 
       
    26 //User includes
       
    27 #include "DmEventServiceBase.h"
       
    28 #include "DmEventNotifierCommon.h"
       
    29 #include "DmEventNotifierInternal.h"
       
    30 
       
    31 const TUid KAppDmEventNotifierUid = TUid::Uid(KAppUidDmEventNotifier); //UID3 from .mmp file
       
    32 
       
    33 //Forward declarations
       
    34 class CSwInstallObserver;
       
    35 
       
    36 /**
       
    37  * Install scheduler is responsible for creating the condition schedules and notifying server
       
    38  * when they expire
       
    39  *
       
    40  *  @since  S60 v5.2
       
    41  */
       
    42 NONSHARABLE_CLASS(CDmEventScheduler) : public CBase
       
    43     {
       
    44 
       
    45     public:
       
    46 
       
    47         /** Two phase construction **/
       
    48         static CDmEventScheduler* NewL();
       
    49 
       
    50         static CDmEventScheduler* NewLC();
       
    51 
       
    52         /** Destructor **/
       
    53         virtual ~CDmEventScheduler();
       
    54 
       
    55         /** Member functions **/
       
    56         /**
       
    57          * This function creates all the condition schedule required by the services
       
    58          *
       
    59          * @since   S60   v5.2
       
    60          * @param   aService - the service to be scheduled. If not specified all will be
       
    61          * scheduled
       
    62          * @return  None. Can leave with system wide errors  
       
    63          */
       
    64         void CreateConditionScheduleL(CDmEventServiceBase* aService = NULL);
       
    65 
       
    66         /**
       
    67          * This function creates one condition schedule with task for a service
       
    68          *
       
    69          * @since   S60   v5.2
       
    70          * @param   aSchedulerItem  - A unique id for the schedule
       
    71          * @param   aScheduler      - Task schedule client side interface
       
    72          * @param   aDefaultRunTime - Task schedule time
       
    73          * @param   aNewTaskId      - The new task in after it is created
       
    74          * @param   aConditions     - The condition array
       
    75          * @param   aService        - The service base pointer
       
    76          * @return  KErrNone or system wide error
       
    77          */
       
    78         TInt CreateConditionScheduleWithTaskL (TSchedulerItemRef& aSchedulerItem, 
       
    79                 RScheduler& aScheduler,
       
    80                 const TTsTime& aDefaultRunTime, 
       
    81                 TInt& aNewTaskId,
       
    82                 CArrayFixFlat<TTaskSchedulerCondition>* &aConditions,
       
    83                 CDmEventServiceBase* aService);
       
    84 
       
    85         /**
       
    86          * This function will wait until a service operation is complete. For example, during software uninstallation
       
    87          * this function returns only when the uninstallation is complete.
       
    88          *
       
    89          * @since   S60   v5.2
       
    90          * @param   aTaskName - Name of the task
       
    91          * @return None. Can leave with system wide error
       
    92          */
       
    93         void WaitAndCreateConditionScheduleL(TName aTaskName);
       
    94 
       
    95     private:
       
    96 
       
    97         /**
       
    98          * Default constructor
       
    99          *
       
   100          * @since   S60   v5.2
       
   101          * @param   NOne
       
   102          * @return 
       
   103          */
       
   104         CDmEventScheduler();
       
   105 
       
   106         /**
       
   107          * Constructs member variables
       
   108          *
       
   109          * @since   S60   v5.2
       
   110          * @return None. Can leave with system wide error.
       
   111          */
       
   112         void ConstructL();
       
   113 
       
   114         /**
       
   115          * Deletes any outstanding task and schedule
       
   116          *
       
   117          * @since   S60   v5.2
       
   118          * @return  None. Can leave with system wide error
       
   119          */
       
   120         void DeleteScheduleL();
       
   121 
       
   122         /**
       
   123          * Creates the condition array for the provided service
       
   124          *
       
   125          * @since   S60   v5.2
       
   126          * @param   aService - the service for which condition array is to be created
       
   127          * @return  Condition array. Can leave with system wide errors. 
       
   128          */
       
   129         CSchConditionArray* CreateConditionLC(CDmEventServiceBase* aService);
       
   130 
       
   131         /**
       
   132          * Finds the expired service when scheduler triggers it.
       
   133          *
       
   134          * @since   S60   v5.2
       
   135          * @param   aTaskName - the task name of the expired schedule
       
   136          * @return  base class pointer of the service
       
   137          */
       
   138         CDmEventServiceBase* FindExpiredService(TName& aTaskName);
       
   139 
       
   140         /**
       
   141          * This functions notifies other registered servers when a service expires
       
   142          *
       
   143          * @since   S60   v5.2
       
   144          * @param   aServiceId - the service that has expired
       
   145          * @param   aOpn - the operation the service has undergone
       
   146          * @return  None. Can leave with system wide errors 
       
   147          */
       
   148         void NotifyRegisteredServersL(THandlerServiceId aServiceId, THandlerOperation aOpn);
       
   149 
       
   150         /**
       
   151          * Checks whether the schedule is already created or not
       
   152          *
       
   153          * @since   S60   v5.2
       
   154          * @return  ETrue if schedule is already created; otherwise EFalse. Can leave
       
   155          * with system wide errors.
       
   156          */
       
   157         TBool IsScheduleEnabledL();
       
   158 
       
   159         /**
       
   160          * Once schedule is created successfully, this function is called to set the
       
   161          * schedule as enabled. otherwise it is called with disabled.
       
   162          *
       
   163          * @since   S60   v5.2
       
   164          * @param   Status of the schedule
       
   165          * @return  None. System wide errors 
       
   166          */
       
   167         void SetScheduleEnabledL(TBool aValue);
       
   168 
       
   169     private:
       
   170 
       
   171         /**
       
   172          * The client side symbian scheduler
       
   173          */
       
   174         RScheduler iScheduler;
       
   175 
       
   176         /**
       
   177          * The scheduler item reference
       
   178          */
       
   179         TSchedulerItemRef iConditionScheduleHandle;
       
   180 
       
   181         /**
       
   182          * Array to hold the services objects
       
   183          */
       
   184         TFixedArray<CDmEventServiceBase*, KMaxServices> iServices;
       
   185 
       
   186     };
       
   187 
       
   188 #endif // __DMEVENTSCHEDULER_H__