taskswitcher/contextengine/tsfswserver/client/src/tsfswclientimpl.cpp
changeset 4 4d54b72983ae
equal deleted inserted replaced
3:fb3763350a08 4:4d54b72983ae
       
     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:  Client API, private implementation
       
    15  *
       
    16 */
       
    17 
       
    18 
       
    19 #include "tsfswclientimpl.h"
       
    20 #include "tsfswclientobserver.h"
       
    21 #include "tsfswcommon.h"
       
    22 #include <s32mem.h>
       
    23 
       
    24 #include "clientlogging.h"
       
    25 
       
    26 // --------------------------------------------------------------------------
       
    27 // StartServer
       
    28 // --------------------------------------------------------------------------
       
    29 //   
       
    30 static TInt StartServer()
       
    31     {
       
    32     RProcess server;
       
    33     const TUidType uid( KNullUid, KNullUid, KTsFswServerUid );
       
    34     TInt err = server.Create( KTsFswServerImg, KNullDesC, uid );
       
    35     if ( err != KErrNone )
       
    36         {
       
    37         return err;
       
    38         }
       
    39     TRequestStatus stat;
       
    40     server.Rendezvous( stat );
       
    41     if ( stat != KRequestPending )
       
    42         {
       
    43         server.Kill( 0 );
       
    44         }
       
    45     else
       
    46         {
       
    47         server.Resume();
       
    48         }
       
    49     User::WaitForRequest( stat );
       
    50     err = server.ExitType() == EExitPanic ? KErrGeneral : stat.Int();
       
    51     server.Close();
       
    52     return err;
       
    53     }
       
    54 
       
    55 // --------------------------------------------------------------------------
       
    56 // CTsFswClientImpl::RTsFswClient::Connect
       
    57 // --------------------------------------------------------------------------
       
    58 //
       
    59 TInt CTsFswClientImpl::RTsFswClient::Connect()
       
    60     {
       
    61     const TInt KAsyncMessageSlots = 4;
       
    62     const TInt KMaxRetry = 4;
       
    63     
       
    64     TInt retry = KMaxRetry;
       
    65     for ( ; ; )
       
    66         {
       
    67         TInt err = CreateSession( KTsFswServerName, TVersion( 0, 0, 0 ), KAsyncMessageSlots );
       
    68         if ( err != KErrNotFound && err != KErrServerTerminated )
       
    69             {
       
    70             return err;
       
    71             }
       
    72         if ( !--retry )
       
    73             {
       
    74             return err;
       
    75             }
       
    76         err = StartServer();
       
    77         if ( err != KErrNone && err != KErrAlreadyExists )
       
    78             {
       
    79             return err;
       
    80             }
       
    81         }
       
    82     }
       
    83 
       
    84 // --------------------------------------------------------------------------
       
    85 // CTsFswClientImpl::RTsFswClient::Subscribe
       
    86 // --------------------------------------------------------------------------
       
    87 //   
       
    88 void CTsFswClientImpl::RTsFswClient::Subscribe( TRequestStatus& aStatus )
       
    89     {
       
    90     SendReceive( ETsFswSubscribe, aStatus );
       
    91     }
       
    92     
       
    93 // --------------------------------------------------------------------------
       
    94 // CTsFswClientImpl::RTsFswClient::CancelSubscribe
       
    95 // --------------------------------------------------------------------------
       
    96 //   
       
    97 void CTsFswClientImpl::RTsFswClient::CancelSubscribe()
       
    98     {
       
    99     SendReceive( ETsFswCancel );
       
   100     }
       
   101 
       
   102 // --------------------------------------------------------------------------
       
   103 // CTsFswClientImpl::RTsFswClient::GetContentL
       
   104 // --------------------------------------------------------------------------
       
   105 //   
       
   106 void CTsFswClientImpl::RTsFswClient::GetContentL( RTsFswArray& aDst )
       
   107     {
       
   108     TSLOG_CONTEXT( GetContentL, TSLOG_LOCAL );
       
   109     TSLOG_IN();
       
   110 
       
   111     for ( ; ; )
       
   112         {
       
   113         TPckgBuf<TInt> bufSize;
       
   114         User::LeaveIfError( SendReceive( ETsFswGetBufferSize,
       
   115             TIpcArgs( &bufSize ) ) );
       
   116         HBufC8* buf = HBufC8::NewLC( bufSize() );
       
   117         TPtr8 p( buf->Des() );
       
   118         TInt err = SendReceive( ETsFswGetBuffer,
       
   119             TIpcArgs( &p, bufSize() ) );
       
   120         if ( err == KErrNone )
       
   121             {
       
   122             RDesReadStream strm( p );
       
   123             CleanupClosePushL( strm );
       
   124             CTsFswEntry::InternalizeArrayL( strm, aDst );
       
   125             CleanupStack::PopAndDestroy( &strm );
       
   126             }
       
   127         else if ( err != KErrArgument )
       
   128             {
       
   129             User::Leave( err );
       
   130             }
       
   131         CleanupStack::PopAndDestroy( buf );
       
   132         if ( err == KErrNone )
       
   133             {
       
   134             break;
       
   135             }
       
   136         // If result was KErrArgument then the size received from GetBufferSize is
       
   137         // not valid anymore so restart the whole procedure.
       
   138         }
       
   139 
       
   140     TSLOG_OUT();
       
   141     }
       
   142 
       
   143 // --------------------------------------------------------------------------
       
   144 // CTsFswClientImpl::RTsFswClient::CloseApp
       
   145 // --------------------------------------------------------------------------
       
   146 //   
       
   147 void CTsFswClientImpl::RTsFswClient::CloseApp( TInt aWgId )
       
   148     {
       
   149     SendReceive( ETsFswCloseApp, TIpcArgs( aWgId ) );
       
   150     }
       
   151 
       
   152 // --------------------------------------------------------------------------
       
   153 // CTsFswClientImpl::RTsFswClient::SwitchToApp
       
   154 // --------------------------------------------------------------------------
       
   155 //   
       
   156 void CTsFswClientImpl::RTsFswClient::SwitchToApp( TInt aWgId )
       
   157     {
       
   158     SendReceive( ETsFswSwitchToApp, TIpcArgs( aWgId ) );
       
   159     }
       
   160 
       
   161 // --------------------------------------------------------------------------
       
   162 // CTsFswClientImpl::RTsFswClient::ForegroundAppUid
       
   163 // --------------------------------------------------------------------------
       
   164 //   
       
   165 TUid CTsFswClientImpl::RTsFswClient::ForegroundAppUid( TInt aType )
       
   166     {
       
   167     TUid result = KNullUid;
       
   168     TPckgBuf<TInt> uidBuf;
       
   169     if ( SendReceive( ETsFswForegroundAppUid,
       
   170             TIpcArgs( &uidBuf, &aType ) ) == KErrNone )
       
   171         {
       
   172         result = TUid::Uid( uidBuf() );
       
   173         }
       
   174     return result;
       
   175     }
       
   176 
       
   177 // --------------------------------------------------------------------------
       
   178 // CTsFswClientImpl::NewL
       
   179 // --------------------------------------------------------------------------
       
   180 //   
       
   181 CTsFswClientImpl* CTsFswClientImpl::NewL()
       
   182     {
       
   183     CTsFswClientImpl* self = NewLC();
       
   184     CleanupStack::Pop( self );
       
   185     return self;
       
   186     }
       
   187 
       
   188 // --------------------------------------------------------------------------
       
   189 // CTsFswClientImpl::NewLC()
       
   190 // --------------------------------------------------------------------------
       
   191 //   
       
   192 CTsFswClientImpl* CTsFswClientImpl::NewLC()
       
   193     {
       
   194     CTsFswClientImpl* self = new ( ELeave ) CTsFswClientImpl;
       
   195     CleanupStack::PushL( self );
       
   196     self->ConstructL();
       
   197     return self;
       
   198     }
       
   199 
       
   200 // --------------------------------------------------------------------------
       
   201 // CTsFswClientImpl::CTsFswClientImpl()
       
   202 // --------------------------------------------------------------------------
       
   203 //   
       
   204 CTsFswClientImpl::CTsFswClientImpl()
       
   205         : CActive( CActive::EPriorityStandard )
       
   206     {
       
   207     CActiveScheduler::Add( this );
       
   208     }
       
   209 
       
   210 // --------------------------------------------------------------------------
       
   211 // CTsFswClientImpl::~CTsFswClientImpl()
       
   212 // --------------------------------------------------------------------------
       
   213 //   
       
   214 CTsFswClientImpl::~CTsFswClientImpl()
       
   215     {
       
   216     Cancel();
       
   217     iClient.Close();
       
   218     }
       
   219 
       
   220 // --------------------------------------------------------------------------
       
   221 // CTsFswClientImpl::ConstructL()
       
   222 // --------------------------------------------------------------------------
       
   223 //   
       
   224 void CTsFswClientImpl::ConstructL()
       
   225     {
       
   226     User::LeaveIfError( iClient.Connect() );
       
   227     }
       
   228 
       
   229 // --------------------------------------------------------------------------
       
   230 // CTsFswClientImpl::GetContentL
       
   231 // --------------------------------------------------------------------------
       
   232 //   
       
   233 void CTsFswClientImpl::GetContentL( RTsFswArray& aDst )
       
   234     {
       
   235     iClient.GetContentL( aDst );
       
   236     }
       
   237 
       
   238 // --------------------------------------------------------------------------
       
   239 // CTsFswClientImpl::Subscribe
       
   240 // --------------------------------------------------------------------------
       
   241 //   
       
   242 void CTsFswClientImpl::Subscribe( MTsFswObserver& aObserver )
       
   243     {
       
   244     Cancel();
       
   245     iObserver = &aObserver;
       
   246     iClient.Subscribe( iStatus );
       
   247     SetActive();
       
   248     }
       
   249     
       
   250 // --------------------------------------------------------------------------
       
   251 // CTsFswClientImpl::CancelSubscribe
       
   252 // --------------------------------------------------------------------------
       
   253 //   
       
   254 void CTsFswClientImpl::CancelSubscribe()
       
   255     {
       
   256     Cancel();
       
   257     }
       
   258 
       
   259 // --------------------------------------------------------------------------
       
   260 // CTsFswClientImpl::CloseApp
       
   261 // --------------------------------------------------------------------------
       
   262 //   
       
   263 void CTsFswClientImpl::CloseApp( TInt aWgId )
       
   264     {
       
   265     iClient.CloseApp( aWgId );
       
   266     }
       
   267     
       
   268 // --------------------------------------------------------------------------
       
   269 // CTsFswClientImpl::SwitchToApp
       
   270 // --------------------------------------------------------------------------
       
   271 //   
       
   272 void CTsFswClientImpl::SwitchToApp( TInt aWgId )
       
   273     {
       
   274     iClient.SwitchToApp( aWgId );
       
   275     }
       
   276 
       
   277 // --------------------------------------------------------------------------
       
   278 // CTsFswClientImpl::ForegroundAppUid
       
   279 // --------------------------------------------------------------------------
       
   280 //   
       
   281 TUid CTsFswClientImpl::ForegroundAppUid( TInt aType )
       
   282     {
       
   283     return iClient.ForegroundAppUid( aType );
       
   284     }
       
   285 
       
   286 // --------------------------------------------------------------------------
       
   287 // CTsFswClientImpl::RunL
       
   288 // --------------------------------------------------------------------------
       
   289 //   
       
   290 void CTsFswClientImpl::RunL()
       
   291     {
       
   292     TSLOG_CONTEXT( RunL, TSLOG_LOCAL );
       
   293     TSLOG1_IN( "%d", iStatus.Int() );
       
   294 
       
   295     if ( iStatus == KErrNone && iObserver )
       
   296         {
       
   297         iClient.Subscribe( iStatus );
       
   298         SetActive();
       
   299         iObserver->HandleFswContentChanged();
       
   300         }
       
   301 
       
   302     TSLOG_OUT();
       
   303     }
       
   304     
       
   305 // --------------------------------------------------------------------------
       
   306 // CTsFswClientImpl::DoCancel
       
   307 // --------------------------------------------------------------------------
       
   308 //   
       
   309 void CTsFswClientImpl::DoCancel()
       
   310     {
       
   311     iClient.CancelSubscribe();
       
   312     }
       
   313 
       
   314 
       
   315 // end of file