genericservices/taskscheduler/INC/SCHINFO.H
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Tue, 02 Feb 2010 02:01:42 +0200
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// Copyright (c) 2004-2009 Nokia Corporation and/or its subsidiary(-ies).
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// All rights reserved.
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// This component and the accompanying materials are made available
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// under the terms of "Eclipse Public License v1.0"
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// which accompanies this distribution, and is available
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// at the URL "http://www.eclipse.org/legal/epl-v10.html".
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//
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// Initial Contributors:
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// Nokia Corporation - initial contribution.
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//
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// Contributors:
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//
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// Description:
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// Various T-classes for client input to scheduler, scheduler output to client	
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// These classes comprise part of the interface (the rest is defined in RScheduler)
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// 
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//
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#if !defined (__SCHINFO_H__)
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#define __SCHINFO_H__
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#if !defined (__SCHTIME_H__)
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#include <schtime.h>
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#endif
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#if !defined(__E32BASE_H__)
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#include <e32base.h>
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#endif
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#include <s32strm.h>
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/** 
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Contains detailed information for a single task.
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A schedule can have any number of tasks. An object of this type is passed 
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to RScheduler::ScheduleTask(). Objects of this type are also returned by functions 
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within RScheduler that retrieve information about tasks.
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@see RScheduler::ScheduleTask()
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@see RScheduler::GetScheduleL()
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@see RScheduler::GetTaskInfoL() 
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@publishedAll
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@released
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*/
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class TTaskInfo
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	{
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public:
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	//ctors
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	IMPORT_C TTaskInfo (TInt aTaskId, TName& aName, TInt aPriority, TInt aRepeat);
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	IMPORT_C TTaskInfo();//
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	//assignment
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	IMPORT_C TTaskInfo& operator=(const TTaskInfo& aTaskInfo);
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	IMPORT_C void ExternalizeL(RWriteStream& aStream) const;
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	IMPORT_C void InternalizeL(RReadStream& aStream);
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	//needs a copy ctor
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	//TTaskInfo (TTaskInfo& aTaskInfo);
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	//data
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	/** Specifies how often the task is to be repeated.
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	This is defined by the client.
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	A value of 1 means once, a value of 2 means twice etc.
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	Note that zero is interpreted to mean once, and a negative value is interpreted 
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	to mean that the task will be repeated until it is explicitly deleted. */
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	TInt iRepeat;
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	/** The unique Id for the task.
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	This is generated by the Task Scheduler. Clients should use the generated 
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	Id to refer to the task in future transactions. */
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	TInt iTaskId;
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	/** The name of the task.
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	This is defined by the client.
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	@see TName */
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	TName iName;
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	/** The priority of the task.
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	This is defined by the client.
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	Determines the order in which a client's tasks are executed. Where a client 
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	has two tasks with different priorities, the task with the higher priority 
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	will be executed first. */
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	TInt iPriority;
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	};
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/** 
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Defines a filter to be used when listing tasks scheduled in a call to RScheduler::GetTaskRefsL().
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@see RScheduler::GetTaskRefsL()
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@publishedAll
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@released
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*/
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enum TTaskFilter
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	{
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	/** Indicates that all tasks are to be selected. */
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	EAllTasks,
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	/** Indicates those tasks associated with the executing program with which the 
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	calling client is associated, are to be selected. */
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	EMyTasks
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	};
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/** 
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Defines a filter to be used when listing schedules in a call to RScheduler::GetScheduleRefsL(), 
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and when listing tasks in a call to RScheduler::GetTaskRefsL().
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@see RScheduler::GetScheduleRefsL()
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@see RScheduler::GetTaskRefsL() 
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@publishedAll
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@released
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*/
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enum TScheduleFilter
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	{
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	/** Indicates that all schedules are to be selected. */
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	EAllSchedules,
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	/** Indicates that only pending schedules are to be selected.
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	Note that pending schedules are those that are enabled and have tasks associated 
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	with them. */
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	EPendingSchedules
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	};
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/** 
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Defines the type of interval used by a schedule entry.
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@see TScheduleEntryInfo
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@publishedAll
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@released
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*/
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enum TIntervalType
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	{
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	/** The interval is based on hours. */
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	EHourly,
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	/** The interval is based on days. */
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	EDaily,
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	/** The interval is based on months. */
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	EMonthly,
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	/** The interval is based on years. */
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	EYearly
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	};
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/**
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Defines the types of schedules supported by the task scheduler API
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@internalAll
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*/
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// Not for Client use , only to be used internally 
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enum TScheduleType
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	{
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	/** Indicates a time based schedule. */
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	ETimeSchedule,
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	/** Indicates a conditon based schedule. */
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	EConditionSchedule
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	};
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/** 
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Defines, and uniquely identifies a schedule.
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@see RScheduler::CreatePersistentSchedule()
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@see RScheduler::ScheduleTask()
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@see RScheduler::GetScheduleRefsL()
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@see RScheduler::GetTaskRefsL()
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@see RScheduler::GetTaskInfoL()
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@publishedAll
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@released
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*/
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class TSchedulerItemRef
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	{
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public:
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	/** The unique Id for the schedule.
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	This is generated by the Task Scheduler when the schedule is created. Clients 
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	should use this Id to refer to the schedule in future transactions. */
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	TInt iHandle;
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	/** The name of the schedule.
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	This is defined by the client. */
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	TName iName;
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	};
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/** 
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Contains detailed information for a single schedule entry.
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A schedule can have any number of schedule entries. A client passes one or 
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more of these objects, contained within an array, to the RScheduler functions 
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that create or amend a schedule.
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@see RScheduler::CreatePersistentSchedule()
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@see RScheduler::EditSchedule()
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@see RScheduler::ScheduleTask()
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@see RScheduler::GetScheduleL() 
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@publishedAll
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@deprecated and replaced by TScheduleEntryInfo2
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*/
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class TScheduleEntryInfo
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	{
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public:
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	void ExternalizeL(RWriteStream& aStream) const;
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	void InternalizeL(RReadStream& aStream);
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	/** Defines the type of time-frame relative to which execution of tasks is timed; 
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	for example, EHourly implies relative to the current hour, EDaily implies 
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	relative to the current day.
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	@see TIntervalType */
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	TIntervalType iIntervalType;
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	/** The first time that the entry will cause execution of tasks. */
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	TTime iStartTime;
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	/** The interval between execution of tasks.
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	The way that this value is interpreted depends on the value of iIntervalType. 
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	For example, if the interval is 2 and iIntervalType has a value of EMonthly, 
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	then the interval is 2 months.
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	The interval must have a minimum value of 1.
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	@see TIntervalType
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	@see iIntervalType */
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	TInt iInterval;
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	/** The period for which the entry is valid.
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	After the validity period has expired, tasks associated with the entry will 
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	not be eligible for execution.
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	@see TTimeIntervalMinutes */
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	TTimeIntervalMinutes iValidityPeriod;
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	};
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/** 
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Contains detailed information for a single schedule entry.
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A schedule can have any number of schedule entries. A client passes one or 
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more of these objects, contained within an array, to the RScheduler functions 
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that create or amend a schedule.
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@see RScheduler::CreatePersistentSchedule()
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@see RScheduler::EditSchedule()
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@see RScheduler::ScheduleTask()
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@see RScheduler::GetScheduleL() 
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@publishedAll
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@released
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*/
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class TScheduleEntryInfo2
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	{
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public:
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	//constructors
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	IMPORT_C TScheduleEntryInfo2();
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	IMPORT_C TScheduleEntryInfo2(const TScheduleEntryInfo2& aEntryInfo);
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	IMPORT_C TScheduleEntryInfo2(const TTsTime& aStartTime, TIntervalType aIntervalType, TInt aInterval, TTimeIntervalMinutes aValidityPeriod);
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	//utility Get and Set methods
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	IMPORT_C TIntervalType IntervalType() const;
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	IMPORT_C void SetIntervalType(TIntervalType aIntervalType);
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	IMPORT_C const TTsTime& StartTime() const;
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	IMPORT_C void SetStartTime(const TTsTime& aStartTime);
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	IMPORT_C TInt Interval() const;
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	IMPORT_C void SetInterval(TInt aInterval);
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	IMPORT_C TTimeIntervalMinutes ValidityPeriod() const;
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	IMPORT_C void SetValidityPeriod(TTimeIntervalMinutes aValidityPeriod);
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	//assignment operator	
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	IMPORT_C TScheduleEntryInfo2& operator=(const TScheduleEntryInfo2& aEntryInfo);
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public:
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	// APIs for use within the Task Scheduler server
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	TScheduleEntryInfo2(const TScheduleEntryInfo& aEntryInfo);
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	void ProcessOffsetEvent();
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	void ExternalizeL(RWriteStream& aStream) const;
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	void InternalizeL(RReadStream& aStream);
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private:
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	/** The interval between execution of tasks.
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	The way that this value is interpreted depends on the value of iIntervalType. 
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	For example, if the interval is 2 and iIntervalType has a value of EMonthly, 
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	then the interval is 2 months.
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	The interval must have a minimum value of 1.
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	 */
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	TInt iInterval;
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	/** Defines the type of interval between the execution of tasks. 
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	May be EHourly, EDaily, EMonthly or EYearly.
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	 */
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	TIntervalType iIntervalType;
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	/** The first time that the entry will cause execution of tasks. */
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	TTsTime iStartTime;
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	/** The period for which the entry is valid.
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	After the validity period has expired, tasks associated with the entry will 
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	not be eligible for execution.
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	*/
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	TTimeIntervalMinutes iValidityPeriod;
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	/** For future use
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	*/
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	TAny* iReserved;	
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	// Declare the test accessor as a friend
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	friend class TScheduleEntryInfo2_StateAccessor;
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	};
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/** 
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Defines the state of a schedule.
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An object of this type is passed to, and populated by, a call to RScheduler::GetScheduleL().
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@see RScheduler::GetScheduleL()
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@publishedAll
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@released
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*/
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class TScheduleState2
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	{
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public:
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	//constructors
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	IMPORT_C TScheduleState2();
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	IMPORT_C TScheduleState2(const TScheduleState2& aScheduleState);
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	IMPORT_C TScheduleState2(const TName& aName, const TTsTime& aDueTime, TBool aPersists, TBool aEnabled);
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	//get, set methods
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	IMPORT_C const TName& Name() const;
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	IMPORT_C void SetName(const TName& aName);
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	IMPORT_C const TTsTime& DueTime() const;
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	IMPORT_C void SetDueTime(const TTsTime& aDueTime);
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	IMPORT_C TBool Persists() const;
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	IMPORT_C void SetPersists(TBool aPersists);
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   351
	IMPORT_C TBool Enabled() const;
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   352
	IMPORT_C void SetEnabled(TBool aEnabled);
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   353
	
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   354
	IMPORT_C TScheduleState2& operator=(const TScheduleState2& aScheduleState);
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   355
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   356
private:
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   357
	/** The name of the schedule. */
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   358
	TName iName;
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   359
	
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   360
	/** The time when the schedule is next due.
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   361
	This only has meaning if the schedule is pending, i.e. it is enabled and has 
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   362
	tasks associated with it. */
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   363
	TTsTime iDueTime;
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   364
	
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   365
	/** Flags used to indicate:
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   366
	1.  Whether the schedule is enabled or not. (bit 0)
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   367
	2.	Whether the schedule is persistent or not. (bit 1)
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   368
		If a schedule is persistent, its lifetime is not limited to the lifetime of 
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   369
		the tasks associated with it .
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		If a schedule is transient, it is created together with a new scheduled task, 
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   371
		and is destroyed when the task is destroyed.
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   372
		
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		Bits 2-31 reserved for future use
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   374
	*/
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   375
	TUint32 iFlags;
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   376
	
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   377
	/** For future use
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   378
	*/
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   379
	TAny* iReserved;
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   380
	
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   381
	// Declare the test accessor as a friend
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   382
	friend class TScheduleState2_StateAccessor;
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   383
	};
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   384
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   385
/** 
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   386
Defines the state of a schedule.
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   387
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   388
An object of this type is passed to, and populated by, a call to RScheduler::GetScheduleL().
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   389
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   390
@see RScheduler::GetScheduleL()
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   391
@publishedAll
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   392
@deprecated and replaced by TScheduleState2.
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   393
*/
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   394
class TScheduleState
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   395
	{
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   396
public:
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   397
	//constructor for use with the deprecated APIs
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   398
	TScheduleState(const TScheduleState2& aScheduleState2);
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   399
	TScheduleState()
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   400
		{		
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   401
		}
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   402
	
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   403
	/** The name of the schedule. */
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   404
	TName iName;
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   405
	
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   406
	/** The time when the schedule is next due.
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   407
	
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   408
	This only has meaning if the schedule is pending, i.e. it is enabled and has 
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   409
	tasks associated with it. */
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   410
	TTime iDueTime;
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parents:
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   411
	
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   412
	/** Indicates whether the schedule is persistent or not.
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   413
	
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   414
	If a schedule is persistent, its lifetime is not limited to the lifetime of 
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diff changeset
   415
	the tasks associated with it .
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parents:
diff changeset
   416
	
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   417
	If a schedule is transient, it is created together with a new scheduled task, 
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   418
	and is destroyed when the task is destroyed. */
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   419
	TBool iPersists;
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   420
	
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   421
	/** Indicates whether the schedule is enabled or not. */
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   422
	TBool iEnabled;
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   423
	};
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   424
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   425
#ifndef SYMBIAN_ENABLE_SPLIT_HEADERS
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   426
#include <schinfointernal.h>
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   427
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   428
#endif
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   429
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   430
#endif