sysstatemgmt/systemstatemgr/cmd/src/ssmcommandlist.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 <ssm/ssmcommandlist.h>
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#include "ssmcommandlistimpl.h"
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/**
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 * Constructs and returns a new CSsmCommandList object.
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 * 
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 * @publishedPartner
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 * @released
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 */
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EXPORT_C CSsmCommandList* CSsmCommandList::NewL()
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	{
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	CSsmCommandList* self = NewLC();
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	CleanupStack::Pop(self);
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	return self;
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	}
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/**
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 * Constructs and returns a new CSsmCommandList object.
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 * 
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 * If this function returns successfully then that allocated object
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 * is pushed onto the cleanup stack.
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 * 
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 * @publishedPartner
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 * @released
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 */
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EXPORT_C CSsmCommandList* CSsmCommandList::NewLC()
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	{
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	CSsmCommandList* self = new(ELeave) CSsmCommandList;
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	CleanupStack::PushL(self);
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	self->ConstructL();
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	return self;
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	}
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/**
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Used to create an instance of CSsmCommandList class from CSsmCommandList object
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Must be used only by CLE
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@param aSsmCommandList CSsmCommandList reference 
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@param aUtilProvider CSsmCommandUtilProvider pointer 
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@return A pointer to an object of type CSsmCommandList.
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@internalComponent
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*/
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EXPORT_C CSsmCommandList* CSsmCommandList::NewLC(const CSsmCommandList* aSsmCommandList, CSsmCommandUtilProvider* aUtilProvider)
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    {
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    CSsmCommandList* self = new(ELeave) CSsmCommandList;
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    CleanupStack::PushL(self);
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    self->ConstructL(aSsmCommandList, aUtilProvider);
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    return self;
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    }
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/**
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@internalComponent
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*/
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CSsmCommandList::CSsmCommandList()
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	{
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	}
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/**
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@internalComponent
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*/
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void CSsmCommandList::ConstructL()
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	{
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	iImpl = CSsmCommandListImpl::NewL();
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	}
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void CSsmCommandList::ConstructL(const CSsmCommandList* aSsmCommandList, CSsmCommandUtilProvider* aUtilProvider)
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    {
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    iImpl = CSsmCommandListImpl::NewL(aSsmCommandList->Impl(), aUtilProvider);
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    }
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CSsmCommandListImpl* CSsmCommandList::Impl() const
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    {
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    return iImpl;
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    }
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/**
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 * Frees any resources allocated to this object.
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 * 
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 * @publishedPartner
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 * @released
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 */
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EXPORT_C CSsmCommandList::~CSsmCommandList()
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	{
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	delete iImpl;
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	}
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/**
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 * Conversion operator to allow CSsmCommandList objects to be used as MSsmCommandLists.
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 * 
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 * @publishedPartner
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 * @released
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*/
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CSsmCommandList::operator class MSsmCommandList&()
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	{
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	return *iImpl;
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	}
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/**
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 * Appends the provided command to the end of the command list.
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 * 
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 * If this function does not leave then it takes ownership of the command
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 * passed in.
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 * 
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 * @param aCmd The command object to be appended to the command list.
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 * 
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 * @publishedPartner
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 * @released
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 */ 
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EXPORT_C void CSsmCommandList::AppendL(MSsmCommand* aCmd)
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	{
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	iImpl->AppendL(aCmd);
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	}
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/**
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 * Gets the number of Publish System State and SWP commands and a bool value to validate the commandlist.
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 * 
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 * On return aSystemState number of publish System State commands.
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 * On return aSWP number of publish SWP commands.
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 * On return aDeferredWait Boolean value, ETrue if commandlist contains a deferred wait command which is not followed by multiple wait, EFalse otherwise. 
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 * 
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 * @internalComponent
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 * @released
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 */ 
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EXPORT_C void CSsmCommandList::GetDataToValidateCommandlist(TInt& aPublishSystemStateCount , TInt& aPublishSwpCount)  const
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	{
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	return iImpl->GetDataToValidateCommandlist(aPublishSystemStateCount,aPublishSwpCount);
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	}
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/**
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 * Sets the delay between command execution for this command list.
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 * 
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 * When this value is set the execution of the command list will pause between each command
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 * by the specified number of milliseconds.
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 * 
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 * Pausing between command execution can be useful 
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 * to avoid overloading the system when starting many processes with ESsmFireAndForget due to
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 * the processes not rendezvousing.
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 * 
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 * @param aDelayBetweenCommands The delay between command execution in milliseconds. If this value is 0 then there will be no delay between command execution.
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 * 
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 * @publishedPartner
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 * @released 
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 */
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EXPORT_C void CSsmCommandList::SetDelayBetweenCommands(TInt aDelayBetweenCommands)
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	{
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	iImpl->SetDelayBetweenCommands(aDelayBetweenCommands);
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	}
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/**
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@internalComponent
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*/
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EXPORT_C TInt CSsmCommandList::DelayBetweenCommands() const
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	{
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	return iImpl->DelayBetweenCommands();
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	}
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/** Read all commands into the list from a stream. This method is used by cle.
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Since cle executes all the commands in the commandlist utilprovider should also be internalized.
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@internalComponent
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*/
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EXPORT_C void CSsmCommandList::InternalizeL(RReadStream& aReadStream, CSsmCommandUtilProvider& aUtilProvider )
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	{
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	iImpl->InternalizeL(aReadStream, &aUtilProvider);
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	}
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/** Read all commands into the list from a stream. This method is used only by the ssmswppolicyserver and 
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ssmswppolicycli. The ssmswppolicyserver and ssmswppolicycli code internalizes and externalizes 
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the commandlist in order to pass the it from server to the client. 
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This commandlist is not executed by ssmswppolicycli, it just passes it to the cle where the commandlist is executed 
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and hence it does not require the utilprovider to be passed in to this method.
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@internalComponent
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*/
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EXPORT_C void CSsmCommandList::InternalizeL(RReadStream& aReadStream)
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	{
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	iImpl->InternalizeL(aReadStream, NULL);
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	}
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/** Write all commands from the list to a stream
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@internalComponent
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*/
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EXPORT_C void CSsmCommandList::ExternalizeL(RWriteStream& aWriteStream) const
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	{
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	iImpl->ExternalizeL(aWriteStream);
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	}
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/** Execute a specific command in the list
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@internalComponent
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*/
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EXPORT_C void CSsmCommandList::Execute(TInt aIndex, TRequestStatus& aStatus)
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	{
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	iImpl->Execute(aIndex, aStatus);
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	}
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/** Cancel a specific command in the list
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@internalComponent
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*/
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EXPORT_C void CSsmCommandList::ExecuteCancel(TInt aIndex)
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	{
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	iImpl->ExecuteCancel(aIndex);
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	}
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/** Count of items in the list
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@internalComponent
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*/
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EXPORT_C TInt CSsmCommandList::Count() const
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	{
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	return iImpl->Count();
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	}
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/**
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This function should be used only if command list is executed.
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It waits for pending deferred commands to finish and then deletes the list.
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@internalComponent
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*/
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EXPORT_C void CSsmCommandList::DeferredDelete()
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	{
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	if (iImpl)
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		{
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		iImpl->DeferredDelete();
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		iImpl = NULL;
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		}
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	delete this;
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	}
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/**
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 * Retrieves the command at the position specified position.
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 * 
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 * @param aIndex The index of the command to retrieve.
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 * 
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 * @return The command at the specified index.
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 * @publishedPartner
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 * @released
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 */
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EXPORT_C const MSsmCommand* CSsmCommandList::operator[](TInt aIndex) const
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	{
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	return (*iImpl)[aIndex];
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	}
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/**
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 * Retrieves the command's severity
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 * 
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 * @param aIndex The severity of the command to retrieve.
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 * 
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 * @return The command's severity.
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 * @internalComponent
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 * @released
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 */
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EXPORT_C TCmdErrorSeverity CSsmCommandList::Severity(TInt aCommandIndex) const
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	{
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	return iImpl->Severity(aCommandIndex);
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	}