harvester/monitorplugins/fileplugin/src/filemonitorao.cpp
changeset 0 c53acadfccc6
child 3 6752808b2036
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-1:000000000000 0:c53acadfccc6
       
     1 /*
       
     2 * Copyright (c) 2007-2009 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:  Monitors file creations, modifications and deletions.*
       
    15 */
       
    16 
       
    17 
       
    18 #include <mdeobject.h>
       
    19 
       
    20 #include "harvestercommon.h"
       
    21 #include "filemonitorao.h"
       
    22 #include "harvesterlog.h"
       
    23 #include "fsutil.h"
       
    24 #include "mdeharvestersession.h"
       
    25 #include "processoriginmapper.h"
       
    26 #include "fileeventhandlerao.h"
       
    27 #include "harvesterpluginfactory.h"
       
    28 
       
    29 using namespace MdeConstants;
       
    30 
       
    31 _LIT( KMdsFSPluginFile, "mdsfileserverplugin" );
       
    32 _LIT( KMdsFSPluginName, "MdsFileServerPlugin" );
       
    33 
       
    34 // ---------------------------------------------------------------------------
       
    35 // CFileMonitorAO::NewL()
       
    36 // ---------------------------------------------------------------------------
       
    37 //
       
    38 CFileMonitorAO* CFileMonitorAO::NewL()
       
    39     {
       
    40     WRITELOG( "CFileMonitorAO::NewL" );
       
    41 
       
    42     CFileMonitorAO* self = new (ELeave) CFileMonitorAO;
       
    43     CleanupStack::PushL( self );
       
    44     self->ConstructL();
       
    45     CleanupStack::Pop( self );
       
    46     return self;
       
    47     }
       
    48 
       
    49 // ---------------------------------------------------------------------------
       
    50 // CFileMonitorAO::ConstructL()
       
    51 // ---------------------------------------------------------------------------
       
    52 //
       
    53 void CFileMonitorAO::ConstructL()
       
    54     {
       
    55     WRITELOG( "CFileMonitorAO::ConstructL" );
       
    56     
       
    57     CActiveScheduler::Add( this );
       
    58     iFsConnectOk = EFalse;
       
    59     }
       
    60 
       
    61 // ---------------------------------------------------------------------------
       
    62 // CFileMonitorAO::~CFileMonitorAO()
       
    63 // ---------------------------------------------------------------------------
       
    64 //
       
    65 CFileMonitorAO::~CFileMonitorAO()
       
    66     {
       
    67     WRITELOG( "CFileMonitorAO::~CFileMonitorAO" );
       
    68     
       
    69     Cancel();
       
    70     
       
    71     StopMonitoring();
       
    72     
       
    73     iIgnoreList.ResetAndDestroy();
       
    74     iIgnoreList.Close();
       
    75 
       
    76     
       
    77     delete iMdeSession;
       
    78     }
       
    79 
       
    80 // ---------------------------------------------------------------------------
       
    81 // CFileMonitorAO::StartMonitoring()
       
    82 // ---------------------------------------------------------------------------
       
    83 //
       
    84 TBool CFileMonitorAO::StartMonitoring( MMonitorPluginObserver& aObserver,
       
    85 	CMdESession* aMdeSession, const TDesC& aPath, CHarvesterPluginFactory* aHarvesterPluginFactory )
       
    86     {
       
    87     WRITELOG( "CFileMonitorAO::StartMonitoring" );
       
    88     
       
    89     iObserver = &aObserver;
       
    90     iHarvesterPluginFactory = aHarvesterPluginFactory;
       
    91     TRAPD( err, iMdeSession = CMdEHarvesterSession::NewL( *aMdeSession ) );
       
    92     if ( err != KErrNone )
       
    93     	{
       
    94     	return EFalse;
       
    95     	}
       
    96     
       
    97     TRAP( err, iFileEventHandler = CFileEventHandlerAO::NewL( aObserver, iMdeSession, aHarvesterPluginFactory ));
       
    98     if ( err != KErrNone )
       
    99     	{
       
   100     	return EFalse;
       
   101     	}
       
   102     
       
   103     TInt error = iFs.Connect();
       
   104     if ( error != KErrNone )
       
   105     	{
       
   106     	iFs.Close();
       
   107     	return EFalse;
       
   108     	}
       
   109 	iFsConnectOk = ETrue;
       
   110 
       
   111     // add mds fileserver plugin
       
   112     error = iFs.AddPlugin( KMdsFSPluginFile );
       
   113     if ( error != KErrAlreadyExists )
       
   114         {
       
   115         error = iFs.MountPlugin( KMdsFSPluginName );
       
   116         if ( error != KErrNone )
       
   117             {
       
   118             return EFalse;
       
   119             }
       
   120         }
       
   121     
       
   122     error = iEngine.Open( iFs, KMdsFSPluginPosition );
       
   123     if ( error != KErrNone )
       
   124         {
       
   125         return EFalse;
       
   126         }
       
   127 
       
   128     iEngine.Enable();
       
   129     iEngine.AddNotificationPath( aPath );
       
   130     
       
   131     StartNotify();
       
   132     return ETrue;
       
   133     }
       
   134 
       
   135 // ---------------------------------------------------------------------------
       
   136 // CFileMonitorAO::StartNotify()
       
   137 // ---------------------------------------------------------------------------
       
   138 //
       
   139 void CFileMonitorAO::StartNotify()
       
   140     {
       
   141     WRITELOG( "CFileMonitorAO::StartNotify" );
       
   142     
       
   143     ResetMdsFSPStatus();
       
   144         
       
   145     iEngine.RegisterNotification( iStatusPckg, iStatus );
       
   146     
       
   147     SetActive();
       
   148     }
       
   149 
       
   150 // ---------------------------------------------------------------------------
       
   151 // CFileMonitorAO::StopMonitoring()
       
   152 // ---------------------------------------------------------------------------
       
   153 //
       
   154 TBool CFileMonitorAO::StopMonitoring()
       
   155     {
       
   156     WRITELOG( "CFileMonitorAO::StopMonitoring" );
       
   157 
       
   158     if ( iFsConnectOk == EFalse )
       
   159     	{
       
   160     	return ETrue;
       
   161     	}
       
   162     
       
   163     Cancel();
       
   164     
       
   165     // remove mds fileserver plugin
       
   166     iEngine.Disable();
       
   167     iEngine.Close();
       
   168     
       
   169 	iFs.DismountPlugin( KMdsFSPluginName );
       
   170 	iFs.RemovePlugin( KMdsFSPluginName );
       
   171     
       
   172     iFs.Close();
       
   173     iFsConnectOk = EFalse;
       
   174     
       
   175     return ETrue;
       
   176     }
       
   177 
       
   178 // ---------------------------------------------------------------------------
       
   179 // CFileMonitorAO::RunL()
       
   180 // From CActive
       
   181 // ---------------------------------------------------------------------------
       
   182 //
       
   183 void CFileMonitorAO::RunL()
       
   184     {
       
   185     WRITELOG( "CFileMonitorAO::RunL" );
       
   186     
       
   187     User::LeaveIfError( iStatus.Int() );
       
   188     TMdsFSPStatus& status = iStatusPckg();
       
   189 
       
   190     iFileEventHandler->AddToQueueL(status);
       
   191 
       
   192     StartNotify();
       
   193     }
       
   194 
       
   195 // ---------------------------------------------------------------------------
       
   196 // CFileMonitorAO::ResetMdsFSPStatus()
       
   197 // ---------------------------------------------------------------------------
       
   198 //
       
   199 void CFileMonitorAO::ResetMdsFSPStatus()
       
   200     {
       
   201     WRITELOG( "CFileMonitorAO::ResetMdsFSPStatus" );
       
   202     
       
   203     TMdsFSPStatus& status = iStatusPckg();
       
   204     
       
   205     status.iDriveNumber = 0;
       
   206     status.iFileEventType = EMdsFileUnknown;
       
   207     status.iFileName.Zero();
       
   208     status.iNewFileName.Zero();
       
   209     status.iProcessId = TUid::Null();
       
   210     }
       
   211     
       
   212 // ---------------------------------------------------------------------------
       
   213 // CFileMonitorAO::RunError()
       
   214 // From CActive
       
   215 // ---------------------------------------------------------------------------
       
   216 //
       
   217 TInt CFileMonitorAO::RunError( TInt aError )
       
   218     {
       
   219     WRITELOG1( "CFileMonitorAO::RunError %d", aError );
       
   220 
       
   221     if ( aError == KErrInUse )
       
   222         {
       
   223         iEngine.NotificationCancel();
       
   224         }
       
   225     else
       
   226         {
       
   227         StartNotify();
       
   228         }
       
   229 
       
   230     return KErrNone;
       
   231     }
       
   232 
       
   233 // ---------------------------------------------------------------------------
       
   234 // CFileMonitorAO::DoCancel()
       
   235 // From CActive
       
   236 // ---------------------------------------------------------------------------
       
   237 //
       
   238 void CFileMonitorAO::DoCancel()
       
   239     {
       
   240     WRITELOG( "CFileMonitorAO::DoCancel" );
       
   241     iEngine.Disable();
       
   242     iEngine.NotificationCancel();
       
   243     }
       
   244 
       
   245 // ---------------------------------------------------------------------------
       
   246 // CFileMonitorAO::CFileMonitorAO()
       
   247 // Constructor
       
   248 // ---------------------------------------------------------------------------
       
   249 //
       
   250 CFileMonitorAO::CFileMonitorAO() : CActive( KHarvesterPriorityMonitorPlugin )
       
   251     {
       
   252     }
       
   253 
       
   254 // ---------------------------------------------------------------------------
       
   255 // CFileMonitorAO::Mapper()
       
   256 // Returns a handle to CProcessOriginMapper.
       
   257 // ---------------------------------------------------------------------------
       
   258 //
       
   259 CProcessOriginMapper& CFileMonitorAO::Mapper()
       
   260     {
       
   261     return iFileEventHandler->Mapper();
       
   262     }
       
   263 
       
   264 // ---------------------------------------------------------------------------
       
   265 // CFileMonitorAO::Mapper()
       
   266 // Set event caching status
       
   267 // ---------------------------------------------------------------------------
       
   268 //
       
   269 void CFileMonitorAO::SetCachingStatus( TBool aCachingStatus )
       
   270 	{
       
   271 	iFileEventHandler->SetCachingStatus( aCachingStatus );
       
   272 	}
       
   273