1 // Copyright (c) 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 the License "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 

    18 /**

    19  @file

    20  @internalTechnology

    21 */

    22 

    23 

    24 #include <e32std.h>

    25 #include <f32file.h>

    26 

    27 #include "msmanclientserver.h"

    28 #include "rusbhostsession.h"

    29 #include "tmslog.h"

    30 #include "debug.h"

    31 

    32 

    33 TVersion RUsbHostSession::Version() const

    34     {

    35     __MSFNSLOG

    36     return(TVersion(KUsbHostSrvMajorVersionNumber,

    37                     KUsbHostSrvMinorVersionNumber,

    38                     KUsbHostSrvBuildVersionNumber));

    39     }

    40 

    41 

    42 EXPORT_C RUsbHostSession::RUsbHostSession()

    43     {

    44     __MSFNSLOG

    45     }

    46 

    47 

    48 EXPORT_C TInt RUsbHostSession::Connect()

    49     {

    50     __MSFNSLOG

    51 

    52     TInt retry = 2;

    53     for (;;)

    54         {

    55         TInt r = CreateSession(KUsbHostServerName, Version());

    56         if ((r != KErrNotFound) && (r != KErrServerTerminated))

    57             {

    58             return r;

    59             }

    60         if (--retry == 0)

    61             {

    62             return r;

    63             }

    64 

    65         r = StartServer();

    66         if ((r != KErrNone) && (r != KErrAlreadyExists))

    67             {

    68             return r;

    69             }

    70         }

    71     }

    72 

    73 

    74 TInt RUsbHostSession::StartServer()

    75     {

    76     __MSFNSLOG

    77 

    78     const TUidType serverUid(KNullUid, KNullUid, KUsbHostServerUid3);

    79 

    80     // Create the server process

    81     RProcess server;

    82     TInt r = server.Create(KUsbHostServerName, KNullDesC, serverUid);

    83     if (r != KErrNone)

    84         {

    85         return r;

    86         }

    87 

    88     // Create the rendezvous request with the server process

    89     TRequestStatus status;

    90     server.Rendezvous(status);

    91     if (status != KRequestPending)

    92         {

    93         User::WaitForRequest(status);

    94         server.Kill(0);    // If the outstanding request is not pending then kill the server

    95         server.Close();

    96         return status.Int();

    97         }

    98 

    99 	server.SetPriority(EPriorityHigh);

   100     server.Resume(); // start the server

   101 

   102     // Test whether the process has ended and if it has ended, return how it ended.

   103     User::WaitForRequest(status);

   104 

   105     if (status == KRequestPending)

   106         {

   107         server.Close();

   108         return status.Int();

   109         }

   110 

   111     server.Close();

   112     return KErrNone;

   113     }

   114 

   115 

   116 

   117 EXPORT_C TInt RUsbHostSession::Start()

   118 	{

   119 	return SendReceive(EUsbHostStart);

   120 	}