locationcentre/lcserver/src/lcserver.cpp
branchRCL_3
changeset 16 4721bd00d3da
parent 14 3a25f69541ff
child 21 e15b7f06eba6
equal deleted inserted replaced
14:3a25f69541ff 16:4721bd00d3da
     1 /*
       
     2 * Copyright (c) 2007 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:  Location Centre Server object.
       
    15 *
       
    16 */
       
    17 
       
    18 
       
    19 // SYSTEM INCLUDES
       
    20 
       
    21 // USER INCLUDES
       
    22 #include "lcserver.h"
       
    23 #include "lcserverinterface.h"
       
    24 #include "lcserversession.h"
       
    25 #include "lcservershutdowntimer.h"
       
    26 #include "lcserverengine.h"
       
    27 
       
    28 // CONSTANT DEFINTIONS
       
    29 
       
    30 // ----- Member funtions for CLcServer ---------------------------------
       
    31 
       
    32 // ---------------------------------------------------------------------------
       
    33 // CLcServer::CLcServer
       
    34 // ---------------------------------------------------------------------------
       
    35 //
       
    36 CLcServer::CLcServer()
       
    37     :CServer2( CActive::EPriorityStandard )
       
    38     {
       
    39     // C++ Default constructor. No allocations or functions which can Leave
       
    40     // should be called from here.
       
    41     }
       
    42          
       
    43 // ---------------------------------------------------------------------------
       
    44 // CLcServer::~CLcServer
       
    45 // ---------------------------------------------------------------------------
       
    46 //
       
    47 CLcServer::~CLcServer()
       
    48     {
       
    49     // C++ Destructor. Free all resources associated with this class.
       
    50     
       
    51     // Delete the Server Engine.
       
    52     delete iEngine;
       
    53     
       
    54     // Delete the shutdown timer.
       
    55     delete iShutDownTimer;
       
    56     
       
    57     }
       
    58         
       
    59 // ---------------------------------------------------------------------------
       
    60 // CLcServer* CLcServer::NewL
       
    61 // ---------------------------------------------------------------------------
       
    62 //
       
    63 CLcServer* CLcServer::NewL()
       
    64     {
       
    65     CLcServer* self = NewLC();
       
    66     CleanupStack::Pop( self );
       
    67     return self;         
       
    68     }
       
    69 
       
    70 // ---------------------------------------------------------------------------
       
    71 // CLcServer* CLcServer::NewLC
       
    72 // ---------------------------------------------------------------------------
       
    73 //
       
    74 CLcServer* CLcServer::NewLC()
       
    75     {
       
    76     // Symbian Two phased constructor. Leaves the object on the Clean-up
       
    77     // stack.
       
    78     CLcServer* self = new ( ELeave )CLcServer();
       
    79     CleanupStack::PushL( self );
       
    80     self->ConstructL();
       
    81     return self;         
       
    82     }
       
    83 
       
    84 // ---------------------------------------------------------------------------
       
    85 // void CLcService::ConstructL
       
    86 // ---------------------------------------------------------------------------
       
    87 //
       
    88 void CLcServer::ConstructL()
       
    89     {
       
    90     // Start the Location Centre Server
       
    91     StartL( KLocationCentreServerName ); 
       
    92     
       
    93     // Create the shutdown timer
       
    94     iShutDownTimer = CLcServerShutDownTimer::NewL();
       
    95     
       
    96     // Create the Location Centre Server Engine.
       
    97     iEngine = CLcServerEngine::NewL( *this ); 
       
    98     }  
       
    99 
       
   100 // ---------------------------------------------------------------------------
       
   101 // CSession2* CLcServer::NewSessionL
       
   102 // ---------------------------------------------------------------------------
       
   103 //
       
   104 CSession2* CLcServer::NewSessionL( const TVersion&     aVersion,
       
   105                                    const RMessage2&    /* aMessage */ ) const
       
   106     {
       
   107     // Check the version number. We dont support any other version numbers
       
   108     // greater than ( 1, 0, 0 ). Hence, if the version number passed to this
       
   109     // function is greater than the supported number leave with KErrNotSupported.
       
   110     TVersion version( KLcServerMajorVersionNumber,
       
   111                       KLcServerMinorVersionNumber,
       
   112                       KLcServerBuildVersionNumber );
       
   113     if ( !User::QueryVersionSupported( version, aVersion ))
       
   114         {
       
   115         User::Leave( KErrNotSupported );
       
   116         }
       
   117 
       
   118     // Make new session
       
   119     CSession2* newSession = 
       
   120         CLcServerSession::NewL( *( const_cast< CLcServer* >( this )),
       
   121                                 *iEngine );
       
   122 
       
   123     return newSession;    
       
   124     }
       
   125 
       
   126 // ---------------------------------------------------------------------------
       
   127 // void CLcServer::IncrementSessions
       
   128 // ---------------------------------------------------------------------------
       
   129 //
       
   130 void CLcServer::IncrementSessions()
       
   131     {
       
   132     // Increment the number of sessions
       
   133     iNumberofSessions++;
       
   134     
       
   135     // Stop the Shutdown timer. This function does nothing if the timer 
       
   136     // is not already running.
       
   137     iShutDownTimer->StopTimer();
       
   138     }
       
   139 
       
   140 // ---------------------------------------------------------------------------
       
   141 // void CLcServer::DecrementSessions
       
   142 // ---------------------------------------------------------------------------
       
   143 //
       
   144 void CLcServer::DecrementSessions()
       
   145     {
       
   146     
       
   147     // If the number of sessions is equal to zero then start the shutdown
       
   148     // timer.
       
   149     if ( --iNumberofSessions == 0 )
       
   150         {
       
   151         iShutDownTimer->StartTimer();
       
   152         }     
       
   153     }
       
   154 
       
   155 // ---------------------------------------------------------------------------
       
   156 // void CLcServer::LcRegistryUpdated
       
   157 // ---------------------------------------------------------------------------
       
   158 //
       
   159 void CLcServer::LcRegistryUpdated()
       
   160     {
       
   161     // Inform all the Sessions contained here that there is an update to the
       
   162     // registry so that they can inform any clients which have registered
       
   163     // for notification
       
   164     iSessionIter.SetToFirst();
       
   165     
       
   166     while ( iSessionIter )
       
   167         {
       
   168         // Obtain the element at the current position and notify the corresponding
       
   169         // session object.
       
   170         CLcServerSession& session = static_cast <CLcServerSession&>( *iSessionIter );
       
   171         session.RegistryUpdated();
       
   172         
       
   173         // Increment the Session object to point to the next session instance
       
   174         iSessionIter++;
       
   175         }
       
   176     }
       
   177 // End of File