commsfwsupport/commselements/NetSubscribe/src/NetPSSignal.cpp
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     1 // Copyright (c) 2004-2009 Nokia Corporation and/or its subsidiary(-ies).
       
     2 // All rights reserved.
       
     3 // This component and the accompanying materials are made available
       
     4 // under the terms of "Eclipse Public License v1.0"
       
     5 // which accompanies this distribution, and is available
       
     6 // at the URL "http://www.eclipse.org/legal/epl-v10.html".
       
     7 //
       
     8 // Initial Contributors:
       
     9 // Nokia Corporation - initial contribution.
       
    10 //
       
    11 // Contributors:
       
    12 //
       
    13 // Description:
       
    14 //
       
    15 
       
    16 /**
       
    17  @file
       
    18  @internalComponent
       
    19 */
       
    20 
       
    21 #include "NetPSSignal.h"
       
    22 
       
    23 using namespace NetSubscribe;
       
    24 
       
    25 void CPSSubscribe::RegisterNewSignalL(TEventClientData& aData, const SSignalId& aSignalId )
       
    26 	{
       
    27 	CPSSignal* pSignal = CPSSignal::NewLC(aSignalId);
       
    28 	pSignal->RegisterClientL( aData );
       
    29 	iSignals.AppendL(pSignal);
       
    30 	CleanupStack::Pop(pSignal);
       
    31 	}
       
    32 
       
    33 CPSSignal* CPSSignal::NewLC( const SSignalId& aSignalId )
       
    34 	{
       
    35 	CPSSignal* pSignal = new(ELeave)CPSSignal(aSignalId);
       
    36 	CleanupStack::PushL(pSignal);
       
    37 	pSignal->ConstructL();
       
    38 	return pSignal;
       
    39 	}
       
    40 
       
    41 void CPSSignal::ConstructL()
       
    42 /**
       
    43  * subscribes to the property
       
    44  */
       
    45 	{
       
    46 	User::LeaveIfError(iProperty.Attach(TUid::Uid(iSignalId.iTypeId.iType), iSignalId.iHandle ));
       
    47 
       
    48 	iProperty.Subscribe(iStatus);
       
    49 	SetActive();
       
    50 	}
       
    51 
       
    52 CPSSignal::~CPSSignal()
       
    53 	{
       
    54 	Cancel();
       
    55 	iProperty.Close();
       
    56 	delete iUsrData;
       
    57 	}
       
    58 
       
    59 void CPSSignal::DoCancel()
       
    60 	{
       
    61 	iProperty.Cancel();
       
    62 	}
       
    63 
       
    64 void CPSSignal::RunL()
       
    65 	{
       
    66 	TInt nErr = iStatus.Int();
       
    67 	//set active first since a leave is trapped by RunError and subscription continues
       
    68 	iProperty.Subscribe(iStatus);
       
    69 	SetActive();
       
    70 	//get data
       
    71 	TBuf8<KMaxLength> buf;
       
    72 	User::LeaveIfError( iProperty.Get(buf) );
       
    73 	TPtrC8 ptr( buf );
       
    74 	if ( iUsrData )
       
    75 		{
       
    76 		User::LeaveIfError( iSignalId.iTypeId.Check( ptr ) );
       
    77 		User::LeaveIfError(iUsrData->Load( ptr ));
       
    78 		}
       
    79 	else
       
    80 		{
       
    81 		iUsrData = Meta::SMetaDataECom::LoadL(ptr);
       
    82 		User::LeaveIfError( iSignalId.iTypeId == iUsrData->GetTypeId() ? KErrNone : KErrArgument );
       
    83 		}
       
    84 	iData.DispatchL( iUsrData, nErr );
       
    85 	}
       
    86