--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/localconnectivityservice/dun/utils/src/DunDataWaiter.cpp	Tue Aug 31 16:03:15 2010 +0300
@@ -0,0 +1,253 @@
+/*
+* 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:  Monitors for new data in RComm local media side
+*
+*/
+
+
+#include "DunTransporter.h"
+#include "DunDataWaiter.h"
+#include "DunSignalCopy.h"
+#include "DunDebug.h"
+
+// ======== MEMBER FUNCTIONS ========
+
+// ---------------------------------------------------------------------------
+// Two-phased constructor.
+// ---------------------------------------------------------------------------
+//
+CDunDataWaiter* CDunDataWaiter::NewL( MDunChannelAllocator* aChannelCallback )
+    {
+    CDunDataWaiter* self = new (ELeave) CDunDataWaiter( aChannelCallback );
+    CleanupStack::PushL( self );
+    self->ConstructL();
+    CleanupStack::Pop( self );
+    return self;
+    }
+
+// ---------------------------------------------------------------------------
+// Destructor.
+// ---------------------------------------------------------------------------
+//
+CDunDataWaiter::~CDunDataWaiter()
+    {
+    FTRACE(FPrint( _L("CDunDataWaiter::~CDunDataWaiter()") ));
+    ResetData();
+    FTRACE(FPrint( _L("CDunDataWaiter::~CDunDataWaiter() complete") ));
+    }
+
+// ---------------------------------------------------------------------------
+// Resets data to initial values
+// ---------------------------------------------------------------------------
+//
+void CDunDataWaiter::ResetData()
+    {
+    FTRACE(FPrint( _L("CDunDataWaiter::ResetData()") ));
+    Stop();
+    // APIs affecting this:
+    // AddConnMonCallbackL()
+    iCallbacks.Close();
+    // Internal
+    Initialize();
+    FTRACE(FPrint( _L("CDunDataWaiter::ResetData() complete") ));
+    }
+
+// ---------------------------------------------------------------------------
+// Adds callback for RunL error controlling
+// The callback will be called when error is detected in asynchronous
+// operation
+// ---------------------------------------------------------------------------
+//
+TInt CDunDataWaiter::AddCallback( MDunConnMon* aCallback )
+    {
+    FTRACE(FPrint( _L("CDunDataWaiter::AddCallback()" ) ));
+    if ( !aCallback )
+        {
+        FTRACE(FPrint( _L("CDunDataWaiter::AddCallback() (ERROR) complete" ) ));
+        return KErrGeneral;
+        }
+    TInt retTemp = iCallbacks.Find( aCallback );
+    if ( retTemp != KErrNotFound )
+        {
+        FTRACE(FPrint( _L("CDunDataWaiter::AddCallback() (already exists) complete" ) ));
+        return KErrAlreadyExists;
+        }
+    retTemp = iCallbacks.Append( aCallback );
+    if ( retTemp != KErrNone )
+        {
+        FTRACE(FPrint( _L("CDunDataWaiter::AddCallback() (append failed!) complete" ) ));
+        return retTemp;
+        }
+    FTRACE(FPrint( _L("CDunDataWaiter::AddCallback() complete" ) ));
+    return KErrNone;
+    }
+
+// ---------------------------------------------------------------------------
+// Sets media to use for this endpoint
+// ---------------------------------------------------------------------------
+//
+TInt CDunDataWaiter::SetMedia( RComm* aComm )
+    {
+    FTRACE(FPrint( _L("CDunDataWaiter::SetMedia(RComm) (addr=0x%08X)" ), aComm));
+    if ( !aComm )
+        {
+        FTRACE(FPrint( _L("CDunDataWaiter::SetMedia() (aComm) not initialized!" )));
+        return KErrGeneral;
+        }
+    TCommCaps2 caps;
+    aComm->Caps( caps );
+    if ( !(caps().iNotificationCaps & KNotifyDataAvailableSupported) )
+        {
+        FTRACE(FPrint( _L("CDunDataWaiter::SetMedia() (RComm) (not supported) complete" )));
+        return KErrNotSupported;
+        }
+    iComm = aComm;
+    FTRACE(FPrint( _L("CDunDataWaiter::SetMedia() (RComm) complete" )));
+    return KErrNone;
+    }
+
+// ---------------------------------------------------------------------------
+// Issues request to start waiting for new data in RComm
+// ---------------------------------------------------------------------------
+//
+TInt CDunDataWaiter::IssueRequest()
+    {
+    FTRACE(FPrint( _L("CDunDataWaiter::IssueRequest()" )));
+    if ( iDataWaiterState != EDunStateIdle )
+        {
+        FTRACE(FPrint( _L("CDunDataWaiter::IssueRequest() (not ready) complete" )));
+        return KErrNotReady;
+        }
+    if ( !iComm )
+        {
+        FTRACE(FPrint( _L("CDunDataWaiter::IssueRequest() (iComm) not initialized!" ) ));
+        return KErrGeneral;
+        }
+    iStatus = KRequestPending;
+    iComm->ResetBuffers();
+    iComm->NotifyDataAvailable( iStatus );
+    SetActive();
+    iDataWaiterState = EDunStateDataWaiting;
+    FTRACE(FPrint( _L("CDunDataWaiter::IssueRequest() complete" )));
+    return KErrNone;
+    }
+
+// ---------------------------------------------------------------------------
+// Stops monitoring for new data
+// ---------------------------------------------------------------------------
+//
+TInt CDunDataWaiter::Stop()
+    {
+    FTRACE(FPrint( _L("CDunDataWaiter::Stop()" )));
+    if ( iDataWaiterState != EDunStateDataWaiting )
+        {
+        FTRACE(FPrint( _L("CDunDataWaiter::Stop() (not ready) complete" )));
+        return KErrNotReady;
+        }
+    if ( !iComm )
+        {
+        FTRACE(FPrint( _L("CDunDataWaiter::Stop() (iComm) not initialized!" )));
+        return KErrGeneral;
+        }
+    iComm->NotifyDataAvailableCancel();
+    Cancel();
+    iDataWaiterState = EDunStateIdle;
+    FTRACE(FPrint( _L("CDunDataWaiter::Stop() complete" )));
+    return KErrNone;
+    }
+
+// ---------------------------------------------------------------------------
+// CDunDataWaiter::CDunDataWaiter
+// ---------------------------------------------------------------------------
+//
+CDunDataWaiter::CDunDataWaiter( MDunChannelAllocator* aChannelCallback ) :
+    CActive( EPriorityHigh ),
+    iChannelCallback( aChannelCallback )
+    {
+    Initialize();
+    }
+
+// ---------------------------------------------------------------------------
+// CDunDataWaiter::ConstructL
+// ---------------------------------------------------------------------------
+//
+void CDunDataWaiter::ConstructL()
+    {
+    FTRACE(FPrint( _L("CDunDataWaiter::ConstructL()" ) ));
+    if ( !iChannelCallback )
+        {
+        User::Leave( KErrGeneral );
+        }
+    CActiveScheduler::Add( this );
+    FTRACE(FPrint( _L("CDunDataWaiter::ConstructL() complete" ) ));
+    }
+
+// ---------------------------------------------------------------------------
+// Initializes this class
+// ---------------------------------------------------------------------------
+//
+void CDunDataWaiter::Initialize()
+    {
+    FTRACE(FPrint( _L("CDunDataWaiter::Initialize()" ) ));
+    // Don't initialize iChannelCallback here (it is set through NewL)
+    iDataWaiterState = EDunStateIdle;
+    iComm = NULL;
+    FTRACE(FPrint( _L("CDunDataWaiter::Initialize() complete" ) ));
+    }
+
+// ---------------------------------------------------------------------------
+// From class CActive.
+// Gets called when new data in RComm object
+// ---------------------------------------------------------------------------
+//
+void CDunDataWaiter::RunL()
+    {
+    FTRACE(FPrint( _L("CDunDataWaiter::RunL()" ) ));
+    iDataWaiterState = EDunStateIdle;
+    TInt retTemp = iStatus.Int();
+    if ( retTemp != KErrNone )
+        {
+        FTRACE(FPrint( _L("CDunDataWaiter::RunL() (failed) complete (%d)"), retTemp));
+        TInt count = iCallbacks.Count();
+        TDunConnectionReason connReason;
+        connReason.iReasonType = EDunReasonTypeRunL;
+        connReason.iContext = EDunMediaContextLocal;
+        connReason.iSignalType = 0;
+        connReason.iSignalHigh = EFalse;
+        connReason.iDirection = EDunDirectionUndefined;
+        connReason.iErrorCode = retTemp;
+        for ( TInt i=0; i<count; i++ )
+            {
+            TRAP_IGNORE(
+                iCallbacks[i]->NotifyProgressChangeL( iComm, connReason ) );
+            }
+        return;
+        }
+    if ( iChannelCallback )
+        {
+        iChannelCallback->NotifyNewChannelRequest( iComm );
+        }
+    // Don't check other iMediaInUse values here
+    // They can't be other than EDunMediaRComm (checked in IssueRequest())
+    FTRACE(FPrint( _L("CDunDataWaiter::RunL() complete" ) ));
+    }
+
+// ---------------------------------------------------------------------------
+// From class CActive.
+// Gets called on cancel
+// ---------------------------------------------------------------------------
+//
+void CDunDataWaiter::DoCancel()
+    {
+    }