1 /** @file

     2 * Copyright (c) 2005-2006 Nokia Corporation and/or its subsidiary(-ies). 

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies  this distribution, and is available 

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:  Base class to connect with server AVCPEngine

    15 *

    16 */

    17 

    18 

    19 // INCLUDE FILES

    20 #include <e32math.h>

    21 #include "upnpavcpengineclient.h"

    22 

    23 #include <Uri16.h>

    24 

    25 // Number of message slots to reserve for this client server session.

    26 const TUint KDefaultMessageSlots = 10;

    27 const TUid KServerUid3 = {0x101F977A};

    28 

    29 // Function prototypes

    30 static TInt StartServer( void );

    31 static TInt CreateServerProcess( void );

    32 

    33 // -----------------------------------------------------------------------------

    34 // RUpnpAVCPEngineClient::RUpnpAVCPEngineClient

    35 // C++ default constructor can NOT contain any code, that

    36 // might leave.

    37 // -----------------------------------------------------------------------------

    38 //

    39 RUpnpAVCPEngineClient::RUpnpAVCPEngineClient()

    40     :RSessionBase()

    41     {

    42     }

    43 

    44 // -----------------------------------------------------------------------------

    45 // RUpnpAVCPEngineClient::Connect

    46 // Connect to ... session.

    47 // -----------------------------------------------------------------------------

    48 //

    49 EXPORT_C TInt RUpnpAVCPEngineClient::Connect()

    50     {

    51     TInt error = ::StartServer();

    52 

    53     if ( KErrNone == error )

    54         {

    55         error = CreateSession( KAVCPEngineName,

    56                                Version(),

    57                                KDefaultMessageSlots );

    58         }

    59     return error;

    60     }

    61 

    62 // -----------------------------------------------------------------------------

    63 // RUpnpAVCPEngineClient::Version

    64 // Version information.

    65 // -----------------------------------------------------------------------------

    66 //

    67 TVersion RUpnpAVCPEngineClient::Version() const

    68     {

    69 	return( TVersion( KAVCPEngineMajorVersionNumber,

    70                       KAVCPEngineMinorVersionNumber,

    71                       KAVCPEngineBuildVersionNumber ) );

    72     }

    73 

    74 // -----------------------------------------------------------------------------

    75 // StartServer

    76 // Static method to start the server.

    77 // -----------------------------------------------------------------------------

    78 //

    79 static TInt StartServer()

    80     {

    81     TInt result;

    82 

    83     TFindServer findMessageHandler( KAVCPEngineName );

    84     TFullName name;

    85 

    86 	result = findMessageHandler.Next( name );

    87 	if ( result == KErrNone )

    88         {

    89 		// Server already running

    90 		return KErrNone;

    91 	    }

    92     result = CreateServerProcess();

    93     if ( result != KErrNone )

    94         {

    95         return  result;

    96         }

    97     return  KErrNone;

    98     }

    99 

   100 // -----------------------------------------------------------------------------

   101 // CreateServerProcess

   102 // Static method to create the server process.

   103 // -----------------------------------------------------------------------------

   104 //

   105 static TInt CreateServerProcess()

   106     {

   107     TInt result;

   108 

   109 	const TUidType serverUid( KNullUid, KNullUid, KServerUid3 );

   110 	RProcess server;

   111 

   112 	result = server.Create( KAVCPEngineFilename, KNullDesC, serverUid );

   113     if ( result != KErrNone )

   114         {

   115         return  result;

   116         }

   117         

   118     TRequestStatus stat = KRequestPending;

   119     server.Rendezvous(stat);

   120     if ( stat != KRequestPending )

   121         {

   122         server.Kill( 0 );       // abort startup

   123         }

   124     else

   125         {

   126         server.Resume();    // logon OK - start the server

   127         }

   128         

   129     User::WaitForRequest(stat);     // wait for start or death

   130     result = (server.ExitType()==EExitPanic) ? KErrGeneral : stat.Int();    

   131     server.Close(); 

   132         

   133     return result;

   134     }

   135 

   136 //  End of File