usbmgmt/usbmgrtest/ObexClassController/ObexUsbClassController/ClassControllerClientSession/src/classControllerClientSession.cpp
changeset 0 c9bc50fca66e
equal deleted inserted replaced
-1:000000000000 0:c9bc50fca66e
       
     1 /*
       
     2 * Copyright (c) 2005-2009 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:
       
    15 *
       
    16 */
       
    17 
       
    18 #include "../../public/clientServerShared.h"
       
    19 #include "classControllerClientSession.h"
       
    20 
       
    21 
       
    22 /**
       
    23  * Function used by RClassControllerClient::Connect member function.
       
    24  * It exists to create a new process which contains the server side code.
       
    25  *
       
    26  * @return Value of error code created
       
    27  */
       
    28 static TInt StartServer()
       
    29 	{
       
    30 	const TUidType serverUid(KNullUid, KNullUid, KObexCCUid);
       
    31 	RProcess server;
       
    32 	TInt err = server.Create(KServerExe, KNullDesC, serverUid);
       
    33 	if ( err != KErrNone )
       
    34 		{
       
    35 		return err;
       
    36 		}
       
    37 
       
    38 	TRequestStatus stat;
       
    39 	server.Rendezvous(stat);
       
    40 
       
    41 	if ( stat != KRequestPending )
       
    42 		{
       
    43 		server.Kill(0); 	// abort startup
       
    44 		}
       
    45 	else
       
    46 		{
       
    47 		server.Resume();	// logon OK - start the server
       
    48 		}
       
    49 
       
    50 	User::WaitForRequest(stat); 	// wait for start or death
       
    51 
       
    52 	// we can't use the 'exit reason' if the server paniced as this
       
    53 	// is the panic 'reason' and may be '0' which cannot be distinguished
       
    54 	// from KErrNone
       
    55 	err = (server.ExitType() == EExitPanic) ? KErrServerTerminated : stat.Int();
       
    56 	
       
    57 	server.Close();
       
    58 
       
    59 	return err;
       
    60 	}
       
    61 
       
    62 
       
    63 
       
    64 /**
       
    65  * Function that creates a session with the server and then returns the appropriate error code.
       
    66  * Then calls StartServer to start the process with the server side code.
       
    67  * 
       
    68  * @return Value of error code produced
       
    69  */
       
    70 
       
    71 EXPORT_C TInt RClassControllerClient::Connect()
       
    72 	{
       
    73 	TInt retry = 2;
       
    74 
       
    75 	FOREVER
       
    76 		{
       
    77 		//Create Session, With server name from shared header 
       
    78 		//And lowest version number of the server with which this client is compatible. 
       
    79 		//Number of message slots available, -1 for meessages from global free pool
       
    80 
       
    81 		TInt err = CreateSession(KServerName, TVersion(KMajorVersionNumber,KMinorVersionNumber,KBuildVersionNumber), KMessageSlots);
       
    82 
       
    83 		if ((err != KErrNotFound) && (err != KErrServerTerminated))
       
    84 			{
       
    85 			return err;
       
    86 			}
       
    87 
       
    88 		if (--retry == 0)
       
    89 			{
       
    90 			return err;
       
    91 			}
       
    92 
       
    93 		err = StartServer();
       
    94 
       
    95 		if ((err != KErrNone) && (err != KErrAlreadyExists))
       
    96 			{
       
    97 			return err;
       
    98 			}
       
    99 		}
       
   100 	}
       
   101 
       
   102 /**
       
   103  * Function that sends a message to the server to initiate the start
       
   104  * of an Obex Service. On completion, TRequestStatus contains error code.
       
   105  *
       
   106  * @return Value of TRequestStatus 
       
   107  */
       
   108 EXPORT_C TInt RClassControllerClient::StartService()
       
   109 	{
       
   110 	return (SendReceive(EStartClassContServer));
       
   111 	}
       
   112 
       
   113 /**
       
   114  * Function that sends a message to the server to initiate the stop
       
   115  * of an Obex Service. On completion, TRequestStatus contains error code.
       
   116  *
       
   117  * @return Value of TRequestStatus 
       
   118  */
       
   119 EXPORT_C TInt RClassControllerClient::StopService()
       
   120 	{
       
   121 	return (SendReceive(EStopClassContServer));
       
   122 	}
       
   123 
       
   124