phoneclientserver/phoneclient/Src/Session/RPhCltServer.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Fri, 16 Apr 2010 15:31:58 +0300
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parent 12 ae8abd0db65c
permissions -rw-r--r--
Revision: 201011 Kit: 201015
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/*
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* Copyright (c) 2002-2005 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:  Server connection handler.
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*
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*/
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// INCLUDE FILES
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#include    <e32math.h>
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#include    <e32uid.h>
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#include    "phclttypes.h" 
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#include    "rphcltserver.h" 
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#include    "phcltclientserver.h" 
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// CONSTANTS
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// Information of Phone Server Startup failure, used in panic call.
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_LIT( PH_SRV_SU_FAILURE, "PhSrvStartUp" );
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// The number of Phone Server startup attempts.
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const TInt KPhCltNumberOfRetryAttempts = 4;
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// The phase were the Phone Server failure happened.
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// Useful in debug purposes if Phone Server startup fails.
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enum 
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    {
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    EPhSrvStartupFailurePhase1,  // First phase
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    EPhSrvStartupFailurePhase2   // Second phase
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    };     
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// ============================ MEMBER FUNCTIONS ===============================
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// -----------------------------------------------------------------------------
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// RPhCltServer::RPhCltServer
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// C++ constructor can NOT contain any code, that
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// might leave.
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// -----------------------------------------------------------------------------
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//
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EXPORT_C RPhCltServer::RPhCltServer() 
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    : RSessionBase()
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    {
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    }
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// -----------------------------------------------------------------------------
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// RPhCltServer::Version
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// 
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// Returns version.
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// -----------------------------------------------------------------------------
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//
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TVersion RPhCltServer::Version() const
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    {
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    return TVersion( KPhoneServerMajorVersionNumber,
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                     KPhoneServerMinorVersionNumber,
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                     KPhoneServerBuildVersionNumber );
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    }
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// -----------------------------------------------------------------------------
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// RPhCltServer::Connect
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// 
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// Creates connection to the server. If server is not running,
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// it is also launched.
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// -----------------------------------------------------------------------------
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//
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EXPORT_C TInt RPhCltServer::Connect( TInt aMessageSlots )
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    {
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    TInt err = KErrGeneral;
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    TInt count = KPhCltNumberOfRetryAttempts;
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    FOREVER
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        {
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        err = CreateSession( PHONE_SERVER_NAME, Version(), aMessageSlots );
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        if ( err != KErrNotFound && err != KErrServerTerminated )
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            {
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            break;
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            }
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        // Need to restart server
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        if ( --count < 0 )
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            {
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            break;
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            }
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        err = StartServer();
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        if ( err != KErrNone && err != KErrAlreadyExists )
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            {
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            if ( err != KErrNotFound )
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                {
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                break;
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                }
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            Panic( EPhCltPanicServerUnexpectedServerNotFound );
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            }
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        }
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    return err;
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    }
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// -----------------------------------------------------------------------------
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// RPhCltServer::CreateAll
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// -----------------------------------------------------------------------------
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//
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EXPORT_C void RPhCltServer::CreateAll( TRequestStatus& aStatus )
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    {
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    SendReceive( 
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        EPhoneCreateAll,
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        TIpcArgs(),
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        aStatus );
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    }
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// -----------------------------------------------------------------------------
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// RPhCltServer::StartServer
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// 
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// Launches the phone server, which is assumed to be not
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// already running.
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// -----------------------------------------------------------------------------
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//
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TInt RPhCltServer::StartServer()
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    {
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    // The uid of the DLL/EXE - used to identify the correct target
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    const TUidType KPhServerUidType( 
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        KExecutableImageUid, 
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        KSharedLibraryUid, 
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        KPhCltServerUid );
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    //////////////////////////////////////////////////////////////////////////
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    // On MARM, the server is an exe, so it is run inside its own process. 
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    // The server itself takes care of creating a thread and finalizing the 
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    // construction of the server. We pass the signalling object via the 
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    // command line.
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    //////////////////////////////////////////////////////////////////////////
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    RProcess serverUnitOfExecution;
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    TFileName pathName( KPhCltServerZDrive );
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    pathName.Append( KDC_PROGRAMS_DIR );
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    pathName.Append( KPhServerPathAndNameMARM );
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    pathName.ZeroTerminate();
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    TInt err = serverUnitOfExecution.Create( 
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        pathName,
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        KNullDesC, 
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        KPhServerUidType );
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    if ( err != KErrNone )
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        {
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        User::Panic( PH_SRV_SU_FAILURE, err );
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        }
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    serverUnitOfExecution.SetPriority( EPriorityHigh );
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   161
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    // Now wait for the server to start up, and also observe if the server
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    // thread dies for any reason.
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12
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    TRequestStatus stat;
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    serverUnitOfExecution.Rendezvous( stat );
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    if ( stat != KRequestPending )
0
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        {
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        User::Panic( PH_SRV_SU_FAILURE, EPhSrvStartupFailurePhase1 );
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12
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        serverUnitOfExecution.Kill( KErrAbort );    // abort startup
0
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        }
12
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    else
0
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        {
12
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        serverUnitOfExecution.Resume(); // logon ok
0
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        }
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    // wait for start or death
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    User::WaitForRequest( stat ); 
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    // we can't use the 'exit reason' if the server panicked as this
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    // is the panic 'reason' and may be '0' which cannot be distinguished
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    // from KErrNone
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    err = ( serverUnitOfExecution.ExitType() == EExitPanic ) 
0
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        ? KErrGeneral : stat.Int();
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    serverUnitOfExecution.Close();
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   189
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    return err;
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    }
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// -----------------------------------------------------------------------------
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// RPhCltServer::Panic
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// 
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// Panics the client thread
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// -----------------------------------------------------------------------------
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//
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void RPhCltServer::Panic( TPhCltPanicTypes aPanic )
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    {
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    User::Panic( KPhClientPanicCategory, aPanic );
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    }
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//  End of File