resourcemgmt/powerandmemorynotificationservice/src/shutdownsrvpatchdata.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Tue, 02 Feb 2010 00:53:00 +0200
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// Copyright (c) 2007-2009 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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//
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#include <e32base.h>
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//all the constant value needs to be in a separate file
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//Care should be taken not to define the exported data in the same source file in which
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//they are referred, lest the compiler inline's it. If inlined, the data cannot be patched.
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//Hence, the definition of data must be put in a separate source file and they must be 
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//referred in other source files by using 'extern' qualifier
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/**
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Patchable constant used in the shutdown server. 
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Used to calculate the shutdown timer with KShtdwnTimeoutClient.
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It represents the base timeout value in microseconds.
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The timeout is calculated as:
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KShtdwnTimeoutBase + KShtdwnTimeoutClient * numClients,
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where numClients is the number of connecting clients.
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If the timeout value is;
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-1, the timer is not used, the server will wait for all client's registration 
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    before executing the shutdown;
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0,  the timer expires immediately, the server will execute the shutdown immediately, 
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    not waiting for any client's re-registration.
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other value greater than 0, the server will wait a certain period of time for the clients' registration 
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    and execute the shutdown if the timer expires or all clients re-register.
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Licensees who wish to alter these patchable constants will need to define 
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these ROM build-time macros in their product HRH or IBY files.
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The new values must follow the rule:
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KShtdwnTimeoutBase >= -1 and
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KShtdwnTimeoutClient >= 0.
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Otherwise, the server panics with KErrNotSupported. 
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@internalComponent
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@see KShtdwnTimeoutClient
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*/
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EXPORT_C extern const TInt32 KShtdwnTimeoutBase = 1000000;
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/**
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Patchable data used in the shutdown server. 
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Used to calculate the shutdown timer with KShtdwnTimeoutBase.
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It represents the timeout value for each client in microseconds.
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@internalComponent
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@see KShtdwnTimeoutBase
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*/
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EXPORT_C extern const TInt32 KShtdwnTimeoutClient = 500000;