wim/Scard/src/ScardNotifyRegistry.cpp
changeset 0 164170e6151a
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/wim/Scard/src/ScardNotifyRegistry.cpp	Tue Jan 26 15:20:08 2010 +0200
@@ -0,0 +1,241 @@
+/*
+* Copyright (c) 2003 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:  Notification Registry for SmartCard
+*
+*/
+
+
+
+// INCLUDE FILES
+#include    "ScardBase.h"
+#include    "ScardNotifyRegistry.h"
+#include    "ScardServer.h"
+#include    "ScardNotifier.h"
+#include    "WimTrace.h"
+
+// ============================ MEMBER FUNCTIONS ===============================
+
+// -----------------------------------------------------------------------------
+// CScardNotifyRegistry::CScardNotifyRegistry
+// C++ default constructor can NOT contain any code, that
+// might leave.
+// -----------------------------------------------------------------------------
+//
+CScardNotifyRegistry::CScardNotifyRegistry() 
+    {
+    _WIMTRACE(_L("WIM|Scard|CScardNotifyRegistry::CScardNotifyRegistry|Begin"));
+    }
+
+// -----------------------------------------------------------------------------
+// CScardNotifyRegistry::ConstructL
+// Symbian 2nd phase constructor can leave.
+// -----------------------------------------------------------------------------
+//
+void CScardNotifyRegistry::ConstructL( CScardServer* aServer )
+    {
+    _WIMTRACE(_L("WIM|Scard|CScardNotifyRegistry::ConstructL|Begin"));
+    iNotifiers = new( ELeave ) CArrayPtrFlat<CScardNotifier>( 1 );
+
+    //  The server is notified of all reader events. 
+    RMessage2 message; // Empty message
+    CScardNotifier* serverNotifier = CScardNotifier::NewL( this, 
+                                                           message,
+                                                           NULL,
+                                                           KServerNotifier );
+
+    iNotifiers->AppendL( serverNotifier );
+
+    iServer = aServer;
+    }
+
+// -----------------------------------------------------------------------------
+// CScardNotifyRegistry::NewL
+// Two-phased constructor.
+// -----------------------------------------------------------------------------
+//
+CScardNotifyRegistry* CScardNotifyRegistry::NewL( CScardServer* aServer )
+    {
+    _WIMTRACE(_L("WIM|Scard|CScardNotifyRegistry::NewL|Begin"));
+    CScardNotifyRegistry* self = new( ELeave ) CScardNotifyRegistry;
+    
+    CleanupStack::PushL( self );
+    self->ConstructL( aServer );
+    CleanupStack::Pop( self );
+
+    return self;
+    }
+
+    
+// Destructor
+CScardNotifyRegistry::~CScardNotifyRegistry() 
+    {
+    _WIMTRACE(_L("WIM|Scard|CScardNotifyRegistry::~CScardNotifyRegistry|Begin"));
+    if ( iNotifiers )
+        {
+        iNotifiers->ResetAndDestroy();
+        }
+    delete iNotifiers;
+    }
+
+
+// -----------------------------------------------------------------------------
+// CScardNotifyRegistry::NotifyCardEvent
+// Notify all notifiers when event occurs
+// -----------------------------------------------------------------------------
+//
+EXPORT_C void CScardNotifyRegistry::NotifyCardEvent(
+    TScardServiceStatus aEvent,
+    TReaderID aReaderID )
+    {
+    _WIMTRACE2(_L("WIM|Scard|CScardNotifyRegistry::NotifyCardEvent|Begin, notifierCount=%d"), iNotifiers->Count());
+    // Tell the server of the event
+    CScardNotifier* notifier = (*iNotifiers)[0];
+    notifier->NotifyCardEvent( aEvent, aReaderID );
+
+    // notify clients (if any)
+    for ( TInt i( 1 ); i < iNotifiers->Count(); i++ )
+        {
+        notifier = (*iNotifiers)[i];
+        if ( notifier->ReaderId() == aReaderID )
+            {
+            _WIMTRACE(_L("WIM|Scard|CScardNotifyRegistry::NotifyCardEvent|NotifyCardEvent Regular starts"));
+            notifier->NotifyCardEvent( aEvent, aReaderID );
+            _WIMTRACE(_L("WIM|Scard|CScardNotifyRegistry::NotifyCardEvent|NotifyCardEvent Regular DONE"));
+
+            // when creating notifier in AddReaderEventListenerL,
+            // the RMessage pointer is passed as parameter to notifier.
+            // that will be used later to notify the client about smart 
+            // card event.
+            // So that each notifier can only be used once.
+            // so we must remove the notifier from the array.
+            // the scard server's notified can be kept.
+            iNotifiers->Delete( i );
+            delete notifier;
+            }
+        }
+    }
+
+// -----------------------------------------------------------------------------
+// CScardNotifyRegistry::Server
+// Return CScardServer object
+// -----------------------------------------------------------------------------
+//
+CScardServer* CScardNotifyRegistry::Server()
+    {
+    _WIMTRACE(_L("WIM|Scard|CScardNotifyRegistry::Server|Begin"));
+    return iServer;
+    }
+
+// -----------------------------------------------------------------------------
+// CScardNotifyRegistry::Cancel
+//
+// -----------------------------------------------------------------------------
+//
+void CScardNotifyRegistry::Cancel( TRequestStatus& aStatus )
+    {
+    _WIMTRACE(_L("WIM|Scard|CScardNotifyRegistry::Cancel|Begin"));
+    TRequestStatus* sp = &aStatus;
+    User::RequestComplete( sp, KScErrCancelled );
+    }
+
+// -----------------------------------------------------------------------------
+// CScardNotifyRegistry::RemoveReaderEventListeners
+// Remove event listener from registry and delete it
+// -----------------------------------------------------------------------------
+//
+void CScardNotifyRegistry::RemoveReaderEventListeners(
+    const RThread& /*aClient*/ )
+    {
+    _WIMTRACE(_L("WIM|Scard|CScardNotifyRegistry::RemoveReaderEventListeners|Begin"));
+    //find and delete from array
+    TInt numOfItems = iNotifiers->Count();
+
+    //do while better here EPR
+    for ( TInt i( 1 ); i < numOfItems; i++ )
+        {
+        iNotifiers->Delete( i );
+        }
+    _WIMTRACE(_L("WIM|Scard|CScardNotifyRegistry::RemoveReaderEventListeners|End"));
+    }
+
+// -----------------------------------------------------------------------------
+// CScardNotifyRegistry::RemoveReaderEventListener
+// Remove event listener from registry and delete it
+// -----------------------------------------------------------------------------
+//
+void CScardNotifyRegistry::RemoveReaderEventListener(
+    const RMessage2& /*aMessage*/ )
+    {
+    _WIMTRACE(_L("WIM|Scard|CScardNotifyRegistry::RemoveReaderEventListener|Begin"));
+
+    TInt notifierCount = iNotifiers->Count();
+
+    _WIMTRACE2(_L("WIM|Scard|CScardNotifyRegistry::RemoveReaderEventListener|Notifier count=%d"), notifierCount);
+
+    //Delete all but our own listener which is the first
+    for ( TInt i( 1 ); i < notifierCount; i++ )
+        {
+        CScardNotifier* notifier = (*iNotifiers)[i];
+        delete notifier;
+        iNotifiers->Delete( i );
+        break;
+        }
+    _WIMTRACE(_L("WIM|Scard|CScardNotifyRegistry::RemoveReaderEventListener|END"));
+
+    }
+
+// -----------------------------------------------------------------------------
+// CScardNotifyRegistry::AddReaderEventListenerL
+// Add new event listener
+// -----------------------------------------------------------------------------
+//
+void CScardNotifyRegistry::AddReaderEventListenerL( const RMessage2& aMessage )
+    {
+    _WIMTRACE(_L("WIM|Scard|CScardNotifyRegistry::AddReaderEventListenerL|Begin"));
+
+    RMessage2 message( aMessage );
+    // extract the TRequestStatus from message
+    TPckgBuf<TRequestStatus*> pckg;
+
+    aMessage.ReadL( 0, pckg );
+
+    TRequestStatus* status = pckg();
+    _WIMTRACE2(_L("WIM|Scard|CScardNotifyRegistry::AddReaderEventListenerL|status=%d"), status);
+    
+    //  extract the reader's friendly name
+    TScardReaderName name;
+    aMessage.ReadL( 1, name );
+
+    const TReaderID readerID = iServer->ReaderID( name );
+
+    if ( !readerID )
+        {
+        aMessage.Complete( KScErrUnknownReader );
+        _WIMTRACE(_L("WIM|Scard|CScardNotifyRegistry::AddReaderEventListenerL|Leave"));
+        User::Leave( KScErrNotSupported );
+        }
+
+    // add item to listener table
+    CScardNotifier* notifier2 = CScardNotifier::NewL( this,
+                                                      message,
+                                                      status,
+                                                      readerID );
+    CleanupStack::PushL( notifier2 );
+    iNotifiers->AppendL( notifier2 );
+    CleanupStack::Pop( notifier2 );
+    _WIMTRACE(_L("WIM|Scard|CScardNotifyRegistry::AddReaderEventListenerL|End"));
+    }
+
+
+//  End of File