commonservices/PlatformEnv/disknotifyhandler/src/entrywatcher.cpp
changeset 0 4e1aa6a622a0
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/commonservices/PlatformEnv/disknotifyhandler/src/entrywatcher.cpp	Tue Feb 02 00:53:00 2010 +0200
@@ -0,0 +1,257 @@
+/*
+* Copyright (c) 2007 Nokia Corporation and/or its subsidiary(-ies). 
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:  Class for entry watcher
+*
+*/
+
+
+//  INCLUDES
+#include <e32std.h>
+#include <f32file.h>
+#include "entrywatcher.h"
+#include "disknotifyhandler.h"
+#include "disknotifyhandlerdebug.h"
+
+
+// ======== LOCAL FUNCTIONS ========
+
+// ---------------------------------------------------------------------------
+// SetEvent
+// ---------------------------------------------------------------------------
+//
+inline static void SetEvent(
+        MDiskNotifyHandlerCallback::TEntryEvent& aEvent,
+        const TDesC& aEntry,
+        TNotifyType aType )
+    {
+    aEvent.iEntry = aEntry;
+    aEvent.iType = aType;
+    }
+
+
+// ======== MEMBER FUNCTIONS ========
+
+// ---------------------------------------------------------------------------
+// CEntryWatcher::CEntryWatcher
+// ---------------------------------------------------------------------------
+//
+CEntryWatcher::CEntryWatcher(
+        MDiskNotifyHandlerCallback& aCallback,
+        RFs& aFs,
+        RPointerArray< CEntryWatcher >& aWatcherList,
+        TNotifyType aType ) :
+    CDiskWatcherBase( aCallback, aFs ),
+    iWatcherList( aWatcherList ),
+    iType( aType )
+    {
+    FUNC_LOG
+    }
+
+// ---------------------------------------------------------------------------
+// CEntryWatcher::ConstructL
+// ---------------------------------------------------------------------------
+//
+void CEntryWatcher::ConstructL( const TDesC& aEntry )
+    {
+    FUNC_LOG
+
+    iEntry = aEntry.AllocL();
+    iWatcherList.InsertInOrderL( this, CompareFindObject );
+    Activate();
+    }
+
+// ---------------------------------------------------------------------------
+// CEntryWatcher::NewL
+// ---------------------------------------------------------------------------
+//
+CEntryWatcher* CEntryWatcher::NewL(
+        MDiskNotifyHandlerCallback& aCallback,
+        RFs& aFs,
+        RPointerArray< CEntryWatcher >& aWatcherList,
+        const TDesC& aEntry,
+        TNotifyType aType )
+    {
+    FUNC_LOG
+
+    CEntryWatcher* self = new ( ELeave ) CEntryWatcher(
+        aCallback, aFs, aWatcherList, aType );
+    CleanupStack::PushL( self );
+    self->ConstructL( aEntry );
+    CleanupStack::Pop( self );
+    return self;
+    }
+
+// ---------------------------------------------------------------------------
+// CEntryWatcher::~CEntryWatcher
+// ---------------------------------------------------------------------------
+//
+CEntryWatcher::~CEntryWatcher()
+    {
+    Cancel();
+    delete iEntry;
+    }
+
+// ---------------------------------------------------------------------------
+// CEntryWatcher::CompareFind
+// ---------------------------------------------------------------------------
+//
+TInt CEntryWatcher::CompareFind(
+        const TDesC* aEntry,
+        const CEntryWatcher& aWatcher )
+    {
+    return aEntry->CompareF( *( aWatcher.iEntry ) );
+    }
+
+// ---------------------------------------------------------------------------
+// CEntryWatcher::CompareFindData
+// ---------------------------------------------------------------------------
+//
+TInt CEntryWatcher::CompareFindData(
+        const TFindData* aData,
+        const CEntryWatcher& aWatcher )
+    {
+    TInt ret( aData->iEntry.CompareF( *( aWatcher.iEntry ) ) );
+    if ( !ret )
+        {
+        ret = Compare( aData->iType, aWatcher.iType );
+        }
+    return ret;
+    }
+
+// ---------------------------------------------------------------------------
+// CEntryWatcher::CompareFindObject
+// ---------------------------------------------------------------------------
+//
+TInt CEntryWatcher::CompareFindObject(
+        const CEntryWatcher& aWatcher1,
+        const CEntryWatcher& aWatcher2 )
+   {
+    TInt ret( aWatcher1.iEntry->Des().CompareF( *( aWatcher2.iEntry ) ) );
+    if ( !ret )
+        {
+        ret = Compare( aWatcher1.iType, aWatcher2.iType );
+        }
+    return ret;
+   }
+
+// ---------------------------------------------------------------------------
+// CEntryWatcher::WatcherError
+// ---------------------------------------------------------------------------
+//
+void CEntryWatcher::WatcherError(
+        TInt aError,
+        const TBool& aKilled )
+    {
+    FUNC_LOG
+
+    LOG_IF_ERROR3(
+        aError,
+        "CEntryWatcher::WatcherError-iType=%d,iEntry=%S,aError=%d",
+        iType, iEntry, aError )
+
+    MDiskNotifyHandlerCallback::TEntryEvent event;
+    SetEvent( event, *iEntry, iType );
+    Callback().HandleNotifyEntry( aError, event );
+    if( aKilled )
+        {
+        return;
+        }
+    // Remove useless watcher if not manually activated from callback
+    if ( !IsActive() )
+        {
+        RemoveFromListAndDestroy();
+        }
+    }
+
+// ---------------------------------------------------------------------------
+// CEntryWatcher::ReactivateWatcher
+// ---------------------------------------------------------------------------
+//
+void CEntryWatcher::ReactivateWatcher()
+    {
+    FUNC_LOG
+
+    Activate();
+    }
+
+// ---------------------------------------------------------------------------
+// CEntryWatcher::RunWatcher
+// ---------------------------------------------------------------------------
+//
+void CEntryWatcher::RunWatcher( const TBool& /*aKilled*/ )
+    {
+    FUNC_LOG
+
+    INFO_LOG2(
+        "CEntryWatcher::RunWatcher-iType=%d,iEntry=%S",
+        iType, iEntry )
+
+    MDiskNotifyHandlerCallback::TEntryEvent event;
+    SetEvent( event, *iEntry, iType );
+    Callback().HandleNotifyEntry( KErrNone, event );
+    }
+
+// ---------------------------------------------------------------------------
+// CEntryWatcher::CancelWatcher
+// ---------------------------------------------------------------------------
+//
+void CEntryWatcher::CancelWatcher()
+    {
+    FUNC_LOG
+
+    INFO_LOG2(
+        "CEntryWatcher::CancelWatcher-iType=%d,iEntry=%S",
+        iType, iEntry )
+
+    Fs().NotifyChangeCancel( iStatus );
+    }
+
+// ---------------------------------------------------------------------------
+// CEntryWatcher::Activate
+// ---------------------------------------------------------------------------
+//
+void CEntryWatcher::Activate()
+    {
+    FUNC_LOG
+
+    if( !IsActive() )
+        {
+        INFO_LOG2(
+            "CEntryWatcher::Activate-iType=%d,iEntry=%S",
+            iType, iEntry )
+        Fs().NotifyChange( iType, iStatus, *iEntry );
+        SetActive();
+        }
+    }
+
+// ---------------------------------------------------------------------------
+// CEntryWatcher::RemoveFromListAndDestroy
+// ---------------------------------------------------------------------------
+//
+void CEntryWatcher::RemoveFromListAndDestroy()
+    {
+    FUNC_LOG
+
+    TInt i( iWatcherList.FindInOrder( this, CompareFindObject ) );
+    if ( i >= 0 && i < iWatcherList.Count() )
+        {
+        INFO_LOG3(
+            "CEntryWatcher::RemoveFromListAndDestroy-iType=%d,iEntry=%S,i=%d",
+            iType, iEntry, i )
+        iWatcherList.Remove( i );
+        delete this;
+        }
+    }
+
+// End of File