bluetoothengine/bthid/bthidserver/src/bthidsession.cpp
author William Roberts <williamr@symbian.org>
Mon, 08 Mar 2010 21:43:36 +0000
branchCompilerCompatibility
changeset 7 17bf63daa97b
parent 0 f63038272f30
child 11 a42ed326b458
permissions -rw-r--r--
Create CompilerCompatibility branch
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
0
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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:  This is the implementation of application class
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 *
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*/
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#include <e32svr.h>
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#include <bttypes.h>
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#include "bthidsession.h"
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#include "bthidserver.h"
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#include "bthidclientsrv.h"
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#include "hidsdpclient.h"
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#include "bthiddevice.h"
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#include "bthidserver.pan"
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#include "debug.h"
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CBTHidServerSession::CBTHidServerSession(CBTHidServer& aServer) :
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    iServer(aServer)
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    {
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    // Implementation not required
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    }
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CBTHidServerSession::~CBTHidServerSession()
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    {
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    iServer.DecrementSessions();
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    delete iHidSdpClient;
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    }
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void CBTHidServerSession::ServiceL(const RMessage2& aMessage)
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    {
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    TRAPD( err, DispatchMessageL( aMessage ) );
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    if (aMessage.Function() == EBTHIDGetConnections && !aMessage.IsNull())
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        {
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        // Handle the error code, what to to?
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        err = err;
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        }
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    }
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void CBTHidServerSession::DispatchMessageL(const RMessage2& aMessage)
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    {
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    switch (aMessage.Function())
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        {
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        case EBTHIDServConnectDevice:
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            RequestConnectionL(aMessage);
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            break;
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        case EBTHIDServCancelConnect:
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            if (iConnectionMessage.Handle())
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                {
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                delete iHidSdpClient;
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                iHidSdpClient = 0;
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                iServer.DeleteNewConnection(iConnectingID);
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                iConnectionMessage.Complete(KErrCancel);
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                }
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            aMessage.Complete(KErrNone);
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            break;
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        case EBTHIDServNotifyConnectionChange:
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            if (iUpdateMessage.Handle())
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                {
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                // We're already busy
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                CBTHidServer::PanicClient(aMessage, EReqAlreadyPending);
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                }
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            else
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                {
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                iUpdateMessage = aMessage;
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                }
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            break;
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        case EBTHIDServCancelNotify:
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            if (iUpdateMessage.Handle())
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                {
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                iUpdateMessage.Complete(KErrCancel);
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                }
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            aMessage.Complete(KErrNone);
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            break;
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        case EBTHIDServDisconnectDevice:
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            RequestDisconnectionL(aMessage);
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            break;
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        case EBTHIDServIsConnected:
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            IsConnectedL(aMessage);
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            break;
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   100
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        case EBTHidSrvDisconnectAllGracefully:
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   102
            if (iDisconnectMsg.Handle())
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   103
                {
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                aMessage.Complete(KErrServerBusy);
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   105
                }
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   106
            else
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   107
                {
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                iDisconnectMsg = aMessage;
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                iServer.DisconnectAllDeviceL();
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                iDisconnectMsg.Complete(KErrNone);
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   111
                }
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   112
            break;
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parents:
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   113
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   114
        case EBTHIDGetConnections:
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            GetConnections(aMessage);
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            break;
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   117
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        default:
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parents:
diff changeset
   119
            {
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parents:
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   120
            TRACE_INFO( ( _L( "[BTHID]\t DispatchMessageL: bad request (%d)" ), 
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   121
                                aMessage.Function() ) )
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parents:
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   122
            CBTHidServer::PanicClient(aMessage, EBadRequest);
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parents:
diff changeset
   123
            }
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parents:
diff changeset
   124
            break;
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parents:
diff changeset
   125
        }
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parents:
diff changeset
   126
    }
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parents:
diff changeset
   127
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parents:
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   128
void CBTHidServerSession::HidSdpSearchComplete(TInt aResult)
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parents:
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   129
    {
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   130
        TRACE_FUNC
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   131
    (_L("[BTHID]\tCBTHidServerSession::HidSdpSearchComplete"));
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   132
    // This is a callback for the Hid SDP client so we can't delete it here
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parents:
diff changeset
   133
    // Get it to destroy itself when its convenient.
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   134
    iHidSdpClient->Kill();
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parents:
diff changeset
   135
    // Deleted outside destructor.
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parents:
diff changeset
   136
    iHidSdpClient = 0;
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parents:
diff changeset
   137
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parents:
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   138
    TInt err = aResult;
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parents:
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   139
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parents:
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   140
    // If the SDP search was a success
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parents:
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   141
    if (err == KErrNone)
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   142
        {
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   143
            // Try to connect to the device as a HID
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parents:
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   144
            TRAP( err, iServer.DoFirstConnectionL(iConnectingID); )
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parents:
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   145
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parents:
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   146
        if (err == KErrAlreadyExists)
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parents:
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   147
            {
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   148
            //there is already an active connection with the same CoD
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parents:
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   149
            TBuf8<KBTDevAddrSize> buf;
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parents:
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   150
            TBTDevAddr dummyAddr = iServer.ConflictAddress();
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parents:
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   151
            buf.Append(dummyAddr.Des());
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parents:
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   152
            if (buf.Length())
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parents:
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   153
                {
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   154
                iConnectionMessage.Write(1, buf);
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parents:
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   155
                }
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parents:
diff changeset
   156
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   157
            //delete the connection object in the server
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parents:
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   158
            iServer.DeleteNewConnection(iConnectingID);
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parents:
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   159
            iConnectionMessage.Complete(err);
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parents:
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   160
            return;
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parents:
diff changeset
   161
            }
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parents:
diff changeset
   162
        }
f63038272f30 Revision: 201001
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parents:
diff changeset
   163
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parents:
diff changeset
   164
    // Any error causes clean up,
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parents:
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   165
    if (err != KErrNone)
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parents:
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   166
        {
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parents:
diff changeset
   167
        //delete the connection object in the server
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parents:
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   168
        iServer.DeleteNewConnection(iConnectingID);
f63038272f30 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   169
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parents:
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   170
        //Inform the client of the result
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parents:
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   171
        iConnectionMessage.Complete(aResult);
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parents:
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   172
        }
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parents:
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   173
    }
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parents:
diff changeset
   174
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   175
void CBTHidServerSession::RequestConnectionL(const RMessage2& aMessage)
f63038272f30 Revision: 201001
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parents:
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   176
    {
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   177
        TRACE_FUNC
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   178
    (_L("[BTHID]\tCBTHidServerSession::RequestConnectionL"));
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parents:
diff changeset
   179
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   180
    if (iConnectionMessage.Handle())
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parents:
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   181
        {
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   182
        // We're already busy
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parents:
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   183
        CBTHidServer::PanicClient(aMessage, EReqAlreadyPending);
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   184
        }
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parents:
diff changeset
   185
    else
f63038272f30 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   186
        {
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parents:
diff changeset
   187
            TRACE_INFO(_L("[BTHID]\tCBTHidServerSession::RequestConnectionL continue to connect"));
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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   188
        // Keep a copy of message - for use later
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parents:
diff changeset
   189
        iConnectionMessage = aMessage;
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parents:
diff changeset
   190
f63038272f30 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   191
        // Read the connection parameters
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parents:
diff changeset
   192
        TBTDevAddr addr;
f63038272f30 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   193
        TPckg<TBTDevAddr> addrPack(addr);
f63038272f30 Revision: 201001
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parents:
diff changeset
   194
f63038272f30 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   195
        iConnectionMessage.ReadL(0, addrPack);
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parents:
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   196
        // Ask the server to create a new connection object
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parents:
diff changeset
   197
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parents:
diff changeset
   198
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   199
        iConnectingID = iServer.NewConnectionL();
f63038272f30 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   200
        TRAPD( res,
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   201
                // Retrieve the hid device object for this new connection
f63038272f30 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   202
                CBTHidDevice &devDetails =
f63038272f30 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   203
                iServer.ConnectionDetailsL(iConnectingID);
f63038272f30 Revision: 201001
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parents:
diff changeset
   204
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parents:
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   205
                // Fill in the information we got from the client
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parents:
diff changeset
   206
                devDetails.iAddress = addr;
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parents:
diff changeset
   207
                devDetails.iUseSecurity = ETrue;
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parents:
diff changeset
   208
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   209
                // Create a new HID Sdp Client
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parents:
diff changeset
   210
                // Its only used here so it doesn't matter if we leave.
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parents:
diff changeset
   211
                delete iHidSdpClient;
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parents:
diff changeset
   212
                iHidSdpClient = 0;
f63038272f30 Revision: 201001
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parents:
diff changeset
   213
                //Create a new hid sdp client using the hid device object.
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parents:
diff changeset
   214
                iHidSdpClient = CHidSdpClient::NewL(devDetails, *this);
f63038272f30 Revision: 201001
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parents:
diff changeset
   215
f63038272f30 Revision: 201001
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parents:
diff changeset
   216
                // Start the hid sdp client
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parents:
diff changeset
   217
                iHidSdpClient->StartL();
f63038272f30 Revision: 201001
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parents:
diff changeset
   218
        )
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parents:
diff changeset
   219
f63038272f30 Revision: 201001
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parents:
diff changeset
   220
        // If there was any error, inform the client and finish
f63038272f30 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   221
        if (res != KErrNone)
f63038272f30 Revision: 201001
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parents:
diff changeset
   222
            {
f63038272f30 Revision: 201001
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parents:
diff changeset
   223
            // Get the server to delete the new connection object
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   224
            iServer.DeleteNewConnection(iConnectingID);
f63038272f30 Revision: 201001
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parents:
diff changeset
   225
            aMessage.Complete(res);
f63038272f30 Revision: 201001
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parents:
diff changeset
   226
            }
f63038272f30 Revision: 201001
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parents:
diff changeset
   227
        }
f63038272f30 Revision: 201001
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parents:
diff changeset
   228
f63038272f30 Revision: 201001
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parents:
diff changeset
   229
    }
f63038272f30 Revision: 201001
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parents:
diff changeset
   230
f63038272f30 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   231
void CBTHidServerSession::RequestDisconnectionL(const RMessage2& aMessage)
f63038272f30 Revision: 201001
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parents:
diff changeset
   232
    {
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parents:
diff changeset
   233
    TBTDevAddr addr;
f63038272f30 Revision: 201001
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parents:
diff changeset
   234
    TPckg<TBTDevAddr> addrPack(addr);
f63038272f30 Revision: 201001
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parents:
diff changeset
   235
f63038272f30 Revision: 201001
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parents:
diff changeset
   236
    // Read the address from the client thread.
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    aMessage.ReadL(0, addrPack);
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    // Since the user can select this option using the BT Keyboard
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    // and the keydown event triggers it, depending on how long they
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    // hold down the key, the connection could be restored to send
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    // the key up event.
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   243
    // Add a small delay, sensible enough for a press of the enter
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    // key before disconnection.
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    // Currently 3/4 of a second.
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    User::After(750000);
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    //Keep the connection alive, initial reconnect from HID device available...
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   249
    iServer.CloseBluetoothConnection(addr);
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    aMessage.Complete(KErrNone);
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    }
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   253
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   254
void CBTHidServerSession::InformStatusChange(
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        const THIDStateUpdateBuf& aUpdateParams)
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    {
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        TRACE_FUNC
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    (_L("[BTHID]\tCBTHidServerSession::InformStatusChange"));
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   259
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    THIDStateUpdate update = aUpdateParams();
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    TBTHidConnState state = update.iState;
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   262
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    TBuf8<KBTDevAddrSize> buf;
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   264
    if (state == EBTDeviceAnotherExist)
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        {
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        TBTDevAddr iDumyAddr = iServer.ConflictAddress();
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        buf.Append(iDumyAddr.Des());
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   268
        }
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   269
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        TRACE_INFO( (_L("[BTHID]\tCBTHidServerSession::InformStatusChange, state=%d"), state) );
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   271
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    if (iUpdateMessage.Handle())
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        {
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            TRACE_FUNC
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        (_L("[BTHID]\tCBTHidServerSession::InformStatusChange, OK - send message"));
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        // Trap any error
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        TRAPD( res,
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                iUpdateMessage.WriteL(0,aUpdateParams);
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   279
                if (buf.Length())
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                    {
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                    iUpdateMessage.WriteL(1,buf);
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                    }
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   283
        )
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   284
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   285
        if (state == EBTDeviceAnotherExist)
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            {
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            iUpdateMessage.Complete(KErrAlreadyExists);
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   288
            }
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        else
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   290
            {
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            // Complete the message, with the error code from the trap.
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            iUpdateMessage.Complete(res);
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   293
            }
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   294
        }
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   295
    }
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   296
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   297
void CBTHidServerSession::InformConnectionResult(TInt aConnID, TInt aResult)
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   298
    {
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   299
        TRACE_INFO( (_L("[BTHID new]\tCBTHidServerSession::InformConnectionResult, Ids: %d==%d aResult = %d"),
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                        iConnectingID, aConnID, aResult) );
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   301
    if ((iConnectionMessage.Handle()) && (iConnectingID == aConnID))
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   302
        {
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   303
        iConnectionMessage.Complete(aResult);
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   304
        }
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   305
    }
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   306
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   307
void CBTHidServerSession::IsConnectedL(const RMessage2& aMessage)
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    {
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   309
    TBTDevAddr addr;
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    TPckg<TBTDevAddr> addrPck(addr);
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   311
    aMessage.ReadL(0, addrPck);
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   312
    TBTEngConnectionStatus ret = iServer.ConnectStatus(addr);
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   313
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    aMessage.Complete(ret);
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   315
    }
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   316
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   317
void CBTHidServerSession::GetConnections(const RMessage2& aMessage)
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   318
    {
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   319
        TRACE_FUNC
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   320
    TBuf8<KBTDevAddrSize * 2> buf;
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parents:
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   321
    buf.Zero();
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   322
    iServer.GetConnectionAddress(buf);
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parents:
diff changeset
   323
    if (buf.Length())
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parents:
diff changeset
   324
        {
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   325
        aMessage.Write(0, buf);
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parents:
diff changeset
   326
        }
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parents:
diff changeset
   327
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   328
    aMessage.Complete(KErrNone);
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   329
    }
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parents:
diff changeset
   330
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   331
CBTHidServerSession* CBTHidServerSession::NewL(CBTHidServer& aServer)
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   332
    {
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   333
    CBTHidServerSession* self = CBTHidServerSession::NewLC(aServer);
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   334
    CleanupStack::Pop(self);
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   335
    return self;
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   336
    }
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parents:
diff changeset
   337
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   338
CBTHidServerSession* CBTHidServerSession::NewLC(CBTHidServer& aServer)
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   339
    {
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   340
    CBTHidServerSession* self = new (ELeave) CBTHidServerSession(aServer);
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   341
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parents:
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   342
    CleanupStack::PushL(self);
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parents:
diff changeset
   343
    self->ConstructL();
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   344
    return self;
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diff changeset
   345
    }
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parents:
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   346
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   347
void CBTHidServerSession::ConstructL()
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   348
    {
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   349
    iServer.IncrementSessions();
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diff changeset
   350
    }