hwrmhaptics/hapticsclient/src/hwrmhapticssession.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Tue, 02 Feb 2010 00:53:00 +0200
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permissions -rw-r--r--
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/*
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* Copyright (c) 2008 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:  Implementation of client side session.
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*
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*/
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#include <e32svr.h>
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#include <data_caging_path_literals.hrh>
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#include "hwrmhapticssession.h"
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#include "hwrmhapticsconfiguration.h"
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#include "hwrmhapticsclientserver.h"
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#include "hwrmhapticstrace.h"
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// ---------------------------------------------------------------------------
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// Connects to server
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// ---------------------------------------------------------------------------
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//
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TInt RHWRMHapticsSession::Connect()
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    {
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   COMPONENT_TRACE( ( _L( "RHWRMHapticsSession::Connect()" ) ) );
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    TInt err = MakeConnection();
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    // Create proper service on server side. i.e. initialize
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    // server components
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    if ( err == KErrNone )
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        {
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        err = SendReceive( EHWRMHapticsService );
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        }
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    COMPONENT_TRACE( ( _L( "RHWRMHapticsSession::Connect - return(%d)" ), err ) );        
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    return err;
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    }
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// ---------------------------------------------------------------------------
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// Connects to server (ASYNC)
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// ---------------------------------------------------------------------------
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//
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void RHWRMHapticsSession::Connect( TRequestStatus& aStatus )
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    {
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   COMPONENT_TRACE( ( _L( "RHWRMHapticsSession::Connect()" ) ) );
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    TInt err = MakeConnection();
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    // Create proper service on server side. i.e. initialize
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    // server components
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    if ( err == KErrNone )
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        {
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        SendReceive( EHWRMHapticsService, aStatus );
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        }
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    else
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        {
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        TRequestStatus* status = &aStatus;
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        User::RequestComplete( status, err );
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        }
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    COMPONENT_TRACE( ( _L( "RHWRMHapticsSession::Connect - return(%d)" ), err ) );
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    }
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// ---------------------------------------------------------------------------
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// Calls SendReceive with given parameters.
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// ---------------------------------------------------------------------------
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//
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TInt RHWRMHapticsSession::ExecuteOperation( 
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                                            TInt aCommand, 
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                                            const TIpcArgs& aArgs ) const
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    {
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    COMPONENT_TRACE( ( _L( "RHWRMHapticsSession::ExecuteOperation(0x%x)" ), aCommand ) );
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    TInt retval = SendReceive( aCommand, aArgs );
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    COMPONENT_TRACE( ( _L( "RHWRMHapticsSession::ExecuteOperation - return %d" ), retval ) );
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    return retval;
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    }
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// ---------------------------------------------------------------------------
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// Calls SendReceive with given parameter.
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// ---------------------------------------------------------------------------
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//
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TInt RHWRMHapticsSession::ExecuteOperation( TInt aCommand ) const
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    {
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    COMPONENT_TRACE( _L( "RHWRMHapticsSession::ExecuteOperation" ) );
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    TInt retval = SendReceive( aCommand );
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    COMPONENT_TRACE( ( _L( "RHWRMHapticsSession::ExecuteOperation - return %d" ), retval ) );
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    return retval;
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    }
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// ---------------------------------------------------------------------------
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// Calls SendReceive with given parameters.
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// ---------------------------------------------------------------------------
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//
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void RHWRMHapticsSession::ExecuteAsyncOperation(
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                                            TInt aCommand, 
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                                            const TIpcArgs& aArgs, 
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                                            TRequestStatus& aStatus ) const
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    {
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    COMPONENT_TRACE( ( _L( "RHWRMHapticsSession::ExecuteAsyncOperation - commandId(%d), aStatus(%d)" ), aCommand, aStatus.Int() ) );
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    SendReceive( aCommand, aArgs, aStatus );
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    COMPONENT_TRACE( ( _L( "RHWRMHapticsSession::ExecuteAsyncOperation - return" ) ) );
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    }
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// ---------------------------------------------------------------------------
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// Starts server.
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// ---------------------------------------------------------------------------
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//
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TInt RHWRMHapticsSession::StartServer() const
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    {
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    COMPONENT_TRACE( ( _L( "RHWRMHapticsSession::StartServer()" ) ) );
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    RProcess server;
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    TInt ret = server.Create( ServerLocation(), KNullDesC );
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    if ( ret != KErrNone ) // Loading failed.
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        {
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        return ret;
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        }
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    TRequestStatus status;
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    server.Rendezvous( status );
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    if ( status != KRequestPending )
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        {
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        server.Kill( 0 ); // Abort startup.
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        server.Close();
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        return KErrGeneral;
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        }
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    else
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        {
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        server.Resume(); // Logon OK - start the server.
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        }
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    User::WaitForRequest( status );
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    server.Close();
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    COMPONENT_TRACE( ( _L( "RHWRMHapticsSession::StartServer - return %d" ), status.Int() ) );
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    return status.Int();    
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    }
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// ---------------------------------------------------------------------------
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// Returns the server location.
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// ---------------------------------------------------------------------------
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//
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TFullName RHWRMHapticsSession::ServerLocation() const
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    {
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    TFullName fullPathAndName( KServerExeDrive );
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    fullPathAndName.Append( KDC_PROGRAMS_DIR );
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    fullPathAndName.Append( KServerExeName );
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    COMPONENT_TRACE( ( _L( "RHWRMHapticsSession::ServerLocation - return %S" ), &fullPathAndName ) );
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    return fullPathAndName;
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    }
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// ---------------------------------------------------------------------------
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// Returns the version of the server.
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// ---------------------------------------------------------------------------
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//
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TVersion RHWRMHapticsSession::ServerVersion() const 
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    {
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    return TVersion( KServerVersionMajor, 
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                     KServerVersionMinor,
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                     KServerVersionBuild );
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    }
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// ---------------------------------------------------------------------------
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// Makes connection to server.
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// ---------------------------------------------------------------------------
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//
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TInt RHWRMHapticsSession::MakeConnection()
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    {
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    // Try connection twice, if not successful on the first attempt
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    TInt retry( 2 );
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    TInt err( KErrNone );
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    while ( retry > 0 )
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        {
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        // try to create a session to the server
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        err = CreateSession( KServerProcessName, 
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                             ServerVersion(), 
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                             KDefaultAsyncSlots );
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        COMPONENT_TRACE( ( _L( "RHWRMHapticsSession::MakeConnection - CreateSession returned: err(%d)" ), err ) );        
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        if ( err != KErrNotFound && err != KErrServerTerminated )
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            {
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            retry = 0; // KErrNone or unrecoverable error
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            }
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        else
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            {
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            // Return code was KErrNotFound or KErrServerTerminated.
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            // Try to start the Haptics server
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            err = StartServer();
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            COMPONENT_TRACE( ( _L( "RHWRMHapticsSession::MakeConnection - StartServer returned: err(%d)" ), err ) );        
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            if ( err != KErrNone && err != KErrAlreadyExists )
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                {
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                retry = 0; // Unrecoverable error
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                }
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            }
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        retry--;
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        }
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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   227
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    return err;    
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parents:
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    }
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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   230
//  End of File