--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/convergedconnectionhandler/cchclientapi/src/cchclientobserver.cpp Wed Sep 01 12:29:57 2010 +0100
@@ -0,0 +1,334 @@
+/*
+* Copyright (c) 2006-2007 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: Cch client api
+*
+*/
+
+
+// INCLUDE FILES
+#include "cchimpl.h"
+#include "cchclientobserver.h"
+#include "cchlogger.h"
+#include "cchserviceimpl.h"
+// EXTERNAL DATA STRUCTURES
+// None
+
+// EXTERNAL FUNCTION PROTOTYPES
+// None
+
+// CONSTANTS
+// None
+
+// MACROS
+// None
+
+// LOCAL CONSTANTS AND MACROS
+// None
+
+// MODULE DATA STRUCTURES
+// None
+
+// LOCAL FUNCTION PROTOTYPES
+// None
+
+// FORWARD DECLARATIONS
+// None
+
+// ============================= LOCAL FUNCTIONS =============================
+
+// ============================ MEMBER FUNCTIONS =============================
+
+// ---------------------------------------------------------------------------
+// CCchClientObserver::CCchClientObserver
+// C++ default constructor can NOT contain any code, that might leave.
+// ---------------------------------------------------------------------------
+//
+CCchClientObserver::CCchClientObserver( CCchServiceImpl& aCchService )
+: CActive ( EPriorityStandard )
+, iCchService( aCchService )
+, iBackwardSupportObserver( NULL )
+ {
+ CActiveScheduler::Add( this );
+ }
+
+CCchClientObserver::~CCchClientObserver()
+ {
+ iObservers.Reset();
+
+ Cancel();
+ }
+
+// ---------------------------------------------------------------------------
+// CCchClientObserver::ConstructL
+// Symbian 2nd phase constructor can leave.
+// ---------------------------------------------------------------------------
+//
+void CCchClientObserver::ConstructL()
+ {
+ CCHLOGSTRING( "CCchClientObserver::ConstructL: IN" );
+
+ CCHLOGSTRING( "CCchClientObserver::ConstructL: OUT" );
+ }
+// ---------------------------------------------------------------------------
+// CCchClientObserver::NewL
+// Two-phased constructor.
+// ---------------------------------------------------------------------------
+//
+CCchClientObserver* CCchClientObserver::NewL( CCchServiceImpl& aCchService )
+ {
+ CCHLOGSTRING( "CCchClientObserver::NewL: IN" );
+ CCchClientObserver* self =
+ CCchClientObserver::NewLC( aCchService );
+ CleanupStack::Pop( self );
+ CCHLOGSTRING( "CCchClientObserver::NewL: OUT" );
+ return self;
+ }
+
+// ---------------------------------------------------------------------------
+// CCchClientObserver::NewLC
+// Two-phased constructor.
+// ---------------------------------------------------------------------------
+//
+CCchClientObserver* CCchClientObserver::NewLC( CCchServiceImpl& aCchService )
+ {
+ CCHLOGSTRING( "CCchClientObserver::NewLC: IN" );
+ CCchClientObserver* self =
+ new (ELeave) CCchClientObserver( aCchService );
+ CleanupStack::PushL( self );
+ self->ConstructL();
+ CCHLOGSTRING( "CCchClientObserver::NewLC: OUT" );
+ return self;
+ }
+
+// ---------------------------------------------------------------------------
+// CCchClientObserver::SetObserver
+// ---------------------------------------------------------------------------
+//
+void CCchClientObserver::SetObserver( MCchServiceStatusObserver& aObserver )
+ {
+ CCHLOGSTRING( "CCchClientObserver::SetObserver: IN - deprecated use AddObserver" );
+
+ // This is for old API user support remove this when all are using new API
+ if( iBackwardSupportObserver )
+ {
+ // remove existing observer
+ CCHLOGSTRING( "CCchClientObserver::SetObserver: removing old observer" );
+ RemoveObserver();
+ }
+
+ CCHLOGSTRING( "CCchClientObserver::SetObserver: adding new observer" );
+ // This is for old API user support remove this when all are using new API
+ AddObserver( aObserver );
+ iBackwardSupportObserver = &aObserver;
+
+ CCHLOGSTRING( "CCchClientObserver::SetObserver: OUT" );
+ }
+
+// ---------------------------------------------------------------------------
+// CCchClientObserver::RemoveObserver
+// ---------------------------------------------------------------------------
+//
+void CCchClientObserver::RemoveObserver( )
+ {
+ CCHLOGSTRING( "CCchClientObserver::RemoveObserver: IN - deprecated use the one with parameter" );
+
+ if( iBackwardSupportObserver )
+ {
+ // remove using observer set in SetObserver. This is for old API user support
+ // remove this when all are using new API
+ RemoveObserver( *iBackwardSupportObserver );
+ iBackwardSupportObserver = NULL;
+ }
+
+ CCHLOGSTRING( "CCchClientObserver::RemoveObserver: OUT" );
+ }
+
+// ---------------------------------------------------------------------------
+// CCchClientObserver::AddObserver
+// ---------------------------------------------------------------------------
+//
+TInt CCchClientObserver::AddObserver(
+ MCchServiceStatusObserver& aObserver )
+ {
+ CCHLOGSTRING2( "CCchClientObserver::AddObserver: IN count=%d", iObservers.Count() );
+
+ TInt index = iObservers.Find( &aObserver );
+
+ // Insert if not already observing
+ if ( index == KErrNotFound )
+ {
+ CCHLOGSTRING( "CCchClientObserver::AddObserver: observer added" );
+ iObservers.Append( &aObserver );
+ }
+ else
+ {
+ CCHLOGSTRING( "CCchClientObserver::AddObserver: observer KErrAlreadyExists" );
+ return KErrAlreadyExists;
+ }
+
+ if ( iObservers.Count() )
+ {
+ if ( !IsActive() )
+ {
+ iCchService.CchImpl()->CchClient().SubscribeToEvents(
+ TServiceSelection( iCchService.ServiceId(), ECCHUnknown ),
+ iServiceStatus,
+ iStatus );
+
+ CCHLOGSTRING( "CCchClientObserver::AddObserver: setting active" );
+
+ SetActive();
+ }
+
+ CCHLOGSTRING( "CCchClientObserver::AddObserver: subscrbing to events" );
+
+ }
+ else
+ {
+ CCHLOGSTRING( "CCchClientObserver::AddObserver: already subscribed subscrbing to events - skipping" );
+ }
+
+ CCHLOGSTRING2( "CCchClientObserver::AddObserver: OUT count=%d", iObservers.Count() );
+ return KErrNone;
+ }
+
+// ---------------------------------------------------------------------------
+// CCchClientObserver::RemoveObserver
+// ---------------------------------------------------------------------------
+//
+TInt CCchClientObserver::RemoveObserver(
+ MCchServiceStatusObserver& aObserver )
+ {
+ CCHLOGSTRING( "CCchClientObserver::RemoveObserver: IN" );
+ CCHLOGSTRING2( "CCchClientObserver::RemoveObserver IN: COUNT=%d", iObservers.Count() );
+
+ TInt index = iObservers.Find( &aObserver );
+
+ if ( index == KErrNotFound )
+ {
+ CCHLOGSTRING("CCchClientObserver::RemoveObserver - observer NOT found KErnotFound returned" );
+ return KErrNotFound;
+ }
+ else
+ {
+ CCHLOGSTRING( "CCchClientObserver::RemoveObserver: removing observer" );
+
+ // Observer found.
+ iObservers.Remove( index );
+ iObservers.Compress();
+
+ // Cancel subcribe to events and free up memory.
+ if ( !iObservers.Count() )
+ {
+ CCHLOGSTRING( "CCchClientObserver::RemoveObserver: unsubscrbing from events" );
+ iCchService.CchImpl()->CchClient().SubscribeToEventsCancel( );
+ iObservers.Reset();
+ }
+ }
+
+ CCHLOGSTRING2( "CCchClientObserver::RemoveObserver OUT: COUNT=%d", iObservers.Count() );
+
+ CCHLOGSTRING( "CCchClientObserver::RemoveObserver: OUT" );
+ return KErrNone;
+ }
+
+// ---------------------------------------------------------------------------
+// CCchClientObserver::DoCancel
+// ---------------------------------------------------------------------------
+//
+void CCchClientObserver::DoCancel()
+ {
+ CCHLOGSTRING( "CCchClientObserver::DoCancel: IN" );
+
+ CCHLOGSTRING( "CCchClientObserver::DoCancel: OUT" );
+ }
+
+// ---------------------------------------------------------------------------
+// CCchClientObserver::RunL
+// ---------------------------------------------------------------------------
+//
+void CCchClientObserver::RunL()
+ {
+ TServiceStatus serviceStatus = iServiceStatus();
+ CCHLOGSTRING( "CCchClientObserver::RunL: IN" );
+
+ //if someone is observing and correct service is changed
+ if ( iObservers.Count() && ( serviceStatus.ServiceId() == iCchService.ServiceId() ) )
+ {
+ TCchServiceStatus status;
+
+ status.SetError( serviceStatus.iError );
+ status.SetState( serviceStatus.iState );
+
+ CCHLOGSTRING2( "CCchClientObserver::RunL: count=%d", iObservers.Count() );
+
+ // If observer array can change while iterating it add support for that.
+ // Then there is a need to iterate starting from beginning until done and save
+ // already notified observers etc
+ TInt count( iObservers.Count() );
+
+ for( TInt i=0; i < count; i++ )
+ {
+ CCHLOGSTRING2( "CCchClientObserver::RunL: looping observers: %d", i );
+
+ // If some client removes observer in middle of iteration start from beginning of array again.
+ if ( count > iObservers.Count() )
+ {
+ CCHLOGSTRING( "CCchClientObserver::RunL: Start from beginning of array" );
+
+ i = 0;
+ count = iObservers.Count();
+ }
+
+ if( iObservers[ i ] )
+ {
+ CCHLOGSTRING2( "CCchClientObserver::RunL: send service status changed to client: %d", i );
+ iObservers[ i ]->ServiceStatusChanged( iCchService.ServiceId(),
+ serviceStatus.Type(), status );
+ }
+ }
+ }
+
+ if ( iObservers.Count() )
+ {
+ if ( !IsActive() )
+ {
+ CCHLOGSTRING( "CCchClientObserver::RunL: Subscribing " );
+ iCchService.CchImpl()->CchClient().SubscribeToEvents(
+ TServiceSelection( iCchService.ServiceId(), ECCHUnknown ),
+ iServiceStatus,
+ iStatus );
+
+ CCHLOGSTRING( "CCchClientObserver::RunL: Setting active" );
+ SetActive();
+ }
+ }
+
+
+ CCHLOGSTRING( "CCchClientObserver::RunL: OUT" );
+ }
+
+// ---------------------------------------------------------------------------
+// CCchClientObserver::RunError
+// ---------------------------------------------------------------------------
+//
+TInt CCchClientObserver::RunError( TInt /*aError*/ )
+ {
+ CCHLOGSTRING( "CCchClientObserver::RunError: IN OUT" );
+ return KErrNone;
+ }
+
+// ========================== OTHER EXPORTED FUNCTIONS =========================
+
+// End of File