contentcontrolsrv/ccsrv/src/ccsrv.cpp
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     1 /*
       
     2  * Copyright (c) 2008 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 // System include files
       
    19 
       
    20 // User include files
       
    21 #include "ccsrv.h"
       
    22 #include "ccsrvsession.h"
       
    23 #include "ccresource.h"
       
    24 #include "ccsrvapi.h"
       
    25 
       
    26 
       
    27 // Local constants
       
    28 
       
    29 // Home screen content control server name
       
    30 _LIT( KCcSrvName,"ccserver" );
       
    31 
       
    32 // Home screen content control server policy
       
    33 //Total number of ranges
       
    34 const TUint KCcRangeCount = 2;
       
    35 
       
    36 //Definition of the ranges of IPC numbers
       
    37 const TInt KCcRanges[KCcRangeCount] = 
       
    38         {
       
    39         ECcIPCFunctionBase,
       
    40         ECcNotSupported 
       
    41         }; 
       
    42 
       
    43 // Policy actions for each of the above ranges
       
    44 const TUint8 KCcPolicyAction[KCcRangeCount] = 
       
    45         {
       
    46         0,
       
    47         CPolicyServer::ENotSupported
       
    48         };
       
    49 
       
    50 // Requested capabilities
       
    51 const CPolicyServer::TPolicyElement KCcCapability[] = 
       
    52         {
       
    53         {_INIT_SECURITY_POLICY_C2( ECapabilityReadUserData, ECapabilityWriteUserData ), CPolicyServer::EFailClient}
       
    54         };
       
    55 
       
    56 const CPolicyServer::TPolicy KCcPolicy =
       
    57         {
       
    58         0,
       
    59         KCcRangeCount,                                 
       
    60         KCcRanges,
       
    61         KCcPolicyAction,
       
    62         KCcCapability
       
    63         };
       
    64 
       
    65 // -----------------------------------------------------------------------------
       
    66 // RunServerL()
       
    67 // -----------------------------------------------------------------------------
       
    68 //
       
    69 static void RunServerL()
       
    70     {
       
    71     User::LeaveIfError(User::RenameThread(KCcSrvName));
       
    72     CActiveScheduler* s=new(ELeave) CActiveScheduler;
       
    73     CleanupStack::PushL(s);
       
    74     CActiveScheduler::Install(s);
       
    75     CCcSrv::NewLC();
       
    76     RProcess::Rendezvous(KErrNone);
       
    77     CActiveScheduler::Start();
       
    78     CleanupStack::PopAndDestroy( 2, s );
       
    79     }
       
    80 
       
    81 // -----------------------------------------------------------------------------
       
    82 // E32Main
       
    83 // Server process entry-point
       
    84 // -----------------------------------------------------------------------------
       
    85 //
       
    86 TInt E32Main()
       
    87     {
       
    88     __UHEAP_MARK;
       
    89     CTrapCleanup* cleanup=CTrapCleanup::New();
       
    90     TInt r=KErrNoMemory;
       
    91     if (cleanup)
       
    92         {
       
    93         TRAP(r,RunServerL());
       
    94         delete cleanup;
       
    95         }
       
    96     __UHEAP_MARKEND;
       
    97     return r;
       
    98     }
       
    99 
       
   100 // ======== MEMBER FUNCTIONS ========
       
   101 
       
   102 // -----------------------------------------------------------------------------
       
   103 // CCcSrv::NewLC
       
   104 // -----------------------------------------------------------------------------
       
   105 //
       
   106 CServer2* CCcSrv::NewLC()
       
   107     {
       
   108     CCcSrv* self=new ( ELeave ) CCcSrv;
       
   109     CleanupStack::PushL( self );
       
   110     self->ConstructL();
       
   111     return self;
       
   112     }
       
   113 
       
   114 // -----------------------------------------------------------------------
       
   115 // CCcSrv::ConstructL()
       
   116 // -----------------------------------------------------------------------
       
   117 //
       
   118 void CCcSrv::ConstructL()
       
   119     {
       
   120     StartL( KCcSrvName );
       
   121     }
       
   122 
       
   123 // -----------------------------------------------------------------------
       
   124 // CCcSrv::CCcSrv()
       
   125 // -----------------------------------------------------------------------
       
   126 //
       
   127 CCcSrv::CCcSrv()
       
   128     :CPolicyServer( 0,KCcPolicy,ESharableSessions )
       
   129     ,iLastSessionId( 0 )
       
   130     {
       
   131     }
       
   132 
       
   133 // -----------------------------------------------------------------------
       
   134 // CCcSrv::~CCcSrv()
       
   135 // -----------------------------------------------------------------------
       
   136 //
       
   137 CCcSrv::~CCcSrv()
       
   138     {
       
   139     iSessions.Close();
       
   140     iProviders.Close();
       
   141     }
       
   142 
       
   143 // -----------------------------------------------------------------------------
       
   144 // CCcSrv::NewSessionL
       
   145 // -----------------------------------------------------------------------------
       
   146 //
       
   147 CSession2* CCcSrv::NewSessionL(
       
   148     const TVersion&,
       
   149     const RMessage2& /* aMessage */ ) const
       
   150     {
       
   151     return new ( ELeave ) CCcSrvSession();
       
   152     }
       
   153 
       
   154 // -----------------------------------------------------------------------------
       
   155 // CCcSrv::AddSessionL
       
   156 // -----------------------------------------------------------------------------
       
   157 //
       
   158 void CCcSrv::AddSessionL( CCcSrvSession* aSession )
       
   159     {
       
   160     // Find next available session id
       
   161     while( ETrue )
       
   162         {
       
   163         iLastSessionId = iLastSessionId + 1;
       
   164         TBool found( EFalse );
       
   165         for ( TUint32 i = 0; i < iSessions.Count() && !found; i++ )
       
   166             {
       
   167             if ( iSessions[ i ]->Id() == iLastSessionId )
       
   168                 {
       
   169                 found = ETrue;
       
   170                 }
       
   171             }
       
   172         if ( !found )
       
   173             {
       
   174             break;
       
   175             }
       
   176         }
       
   177     
       
   178     aSession->SetId( iLastSessionId );
       
   179     iSessions.AppendL( aSession );
       
   180     }
       
   181 
       
   182 // -----------------------------------------------------------------------------
       
   183 // CCcSrv::DropSession
       
   184 // -----------------------------------------------------------------------------
       
   185 //
       
   186 void CCcSrv::DropSession( CCcSrvSession* aSession )
       
   187     {
       
   188     for ( TUint32 i = 0; i < iSessions.Count(); i++ )
       
   189         {
       
   190         if ( iSessions[ i ]->Id() == aSession->Id() )
       
   191             {
       
   192             iSessions.Remove( i );
       
   193             break;
       
   194             }
       
   195         }
       
   196     // Unregister possible observations
       
   197     for ( TUint32 i = 0; i < iProviders.Count(); i++ )
       
   198         {
       
   199         TRAP_IGNORE( iProviders[ i ].iSession->
       
   200             UnregisterObserverSessionL( aSession->Id() ) );
       
   201         }
       
   202     
       
   203     // Remove possible provider
       
   204     for ( TUint32 i = 0; i < iProviders.Count(); i++ )
       
   205         {
       
   206         if ( iProviders[ i ].iId == aSession->Id() )
       
   207             {
       
   208             iProviders.Remove( i );
       
   209             break;
       
   210             }
       
   211         }
       
   212     if ( iSessions.Count() == 0 )
       
   213         {
       
   214         // Last session dropped -> stop server
       
   215         CActiveScheduler::Stop();
       
   216         }
       
   217     }
       
   218 
       
   219 // -----------------------------------------------------------------------------
       
   220 // CCcSrv::RegisterProviderSessionL
       
   221 // -----------------------------------------------------------------------------
       
   222 //
       
   223 void CCcSrv::RegisterProviderL( 
       
   224     TUint32 aProvider,
       
   225     CCcSrvSession* aSession )
       
   226     {
       
   227     for ( TUint32 i = 0; i < iProviders.Count(); i++ )
       
   228         {
       
   229         if ( iProviders[ i ].iId == aProvider )
       
   230             {
       
   231             User::Leave( KErrAlreadyExists );
       
   232             }
       
   233         }
       
   234     CCcSrv::TCcProvider provider;
       
   235     provider.iId = aProvider;
       
   236     provider.iSession = aSession;
       
   237     iProviders.Append( provider );
       
   238     
       
   239     }
       
   240 
       
   241 // -----------------------------------------------------------------------------
       
   242 // CCcSrv::RegisterObserverL
       
   243 // -----------------------------------------------------------------------------
       
   244 //
       
   245 void CCcSrv::RegisterObserverL( 
       
   246     TUint32 aProvider,
       
   247     CCcSrvSession* aSession )
       
   248     {
       
   249     TBool found( EFalse );
       
   250     for ( TUint32 i = 0; i < iProviders.Count() && !found; i++ )
       
   251         {
       
   252         if ( iProviders[ i ].iId == aProvider )
       
   253             {
       
   254             iProviders[ i ].iSession->RegisterObserverSessionL( aSession->Id() );   
       
   255             found = ETrue;
       
   256             }
       
   257         }
       
   258     if ( !found )
       
   259         {
       
   260         User::Leave( KErrNotFound );
       
   261         }
       
   262     }
       
   263 
       
   264 // -----------------------------------------------------------------------------
       
   265 // CCcSrv::ResolveProviderAddressL
       
   266 // -----------------------------------------------------------------------------
       
   267 //
       
   268 void CCcSrv::ResolveProviderAddressL( 
       
   269     TUint32 aProvider,
       
   270     TUint32& aAddress )
       
   271     {
       
   272     TBool found( EFalse );
       
   273     for ( TUint32 i = 0; i < iProviders.Count() && !found; i++ )
       
   274         {
       
   275         if ( iProviders[ i ].iId == aProvider )
       
   276             {
       
   277             aAddress = iProviders[ i ].iSession->Id();
       
   278             found = ETrue;
       
   279             }
       
   280         }
       
   281     if ( !found )
       
   282         {
       
   283         User::Leave( KErrNotFound );
       
   284         }
       
   285     }
       
   286 
       
   287 // -----------------------------------------------------------------------------
       
   288 // CCcSrv::GetTrId
       
   289 // -----------------------------------------------------------------------------
       
   290 //
       
   291 TUint32 CCcSrv::GetTrId()
       
   292     {
       
   293     iLastTrId++;
       
   294     return iLastTrId;
       
   295     }
       
   296 
       
   297 // -----------------------------------------------------------------------------
       
   298 // CCcSrv::SendMsgL
       
   299 // -----------------------------------------------------------------------------
       
   300 //
       
   301 void CCcSrv::SendMsgL( 
       
   302     TUint32 aSender,
       
   303     TUint32 aReceiver,
       
   304     CCcSrvMsg& aMessage )
       
   305     {
       
   306     TBool found( EFalse );
       
   307     for ( TUint32 i = 0; i < iSessions.Count() && !found; i++ )
       
   308         {
       
   309         if ( iSessions[ i ]->Id() == aReceiver )
       
   310             {
       
   311             iSessions[ i ]->ReceiveMsgL( aSender, aReceiver, aMessage );
       
   312             found = ETrue;
       
   313             }
       
   314         }
       
   315     if ( !found )
       
   316         {
       
   317         User::Leave( KErrNotFound );
       
   318         }
       
   319     }
       
   320 
       
   321 // End of file