kernel/eka/include/nkern/emievents.h
author hgs
Fri, 09 Jul 2010 13:13:20 +0100
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201027_05
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// Copyright (c) 2005-2009 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 the License "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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//
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// WARNING: This file contains some APIs which are internal and are subject
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//          to change without notice. Such APIs should therefore not be used
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//          outside the Kernel and Hardware Services package.
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//
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#ifndef __EMIEVENTS_H__
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#define __EMIEVENTS_H__
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/**
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@publishedPartner
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@released
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Defines the format of a task event record.
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An item of this type is passed to:
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-# EMI::GetTaskEvent()
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-# EMI::AddTaskEvent()
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*/
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struct TTaskEventRecord
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	{
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	/**
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	Defines the type of event:
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    0 = Reschedule 
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    1..127 = Reserved
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	> 127 = User Defined
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	*/
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	TUint8	iType;	
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	/**
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	Flag bits.
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    Bit 0 - Events have been lost before this event. (All types) 
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	Bit 1 - Previous thread is now waiting. (Reschedule only)
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	*/					
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	TUint8	iFlags;
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	/**
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	This has no use in reschedule events, but may be used by other event types.
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	*/
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	TUint16	iExtra;
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	/**
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	The state variable at the time of the event, which will
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	probably indicate the clock frequency at the time of the event.
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	*/
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	TUint32	iUserState;
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	/**
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	The time that the event occurred.
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	The units are defined by the GET_HIGH_RES_TICK macro.
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	*/
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	TUint32	iTime;
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	/**
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	The NThread that was executing before the switch.
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	*/
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	TAny*	iPrevious;
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	/**
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	The NThread that was executing after the switch.
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	*/
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	TAny*	iNext;
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	};
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const TUint8 KTskEvtFlag_EventLost  =1;
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const TUint8 KTskEvtFlag_PrevWaiting=2;
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#endif