diff -r 000000000000 -r c8caa15ef882 simpleengine/engine/src/simpleconnection.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/simpleengine/engine/src/simpleconnection.cpp	Tue Feb 02 01:05:17 2010 +0200
@@ -0,0 +1,308 @@
+/*
+* Copyright (c) 2006 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:    Simple Engine
+*
+*/
+
+
+
+
+// INCLUDE FILES
+
+#include <e32std.h>
+
+// own simple
+#include "simplesipconnection.h"
+#include "simplecommon.h"
+#include "simpleenginerequest.h"
+#include "msimpleconnectionobserver.h"
+#include "simpleconnection.h"
+#include "simpleengineutils.h"
+#include "msimpleenginerequest.h"
+
+#ifdef _DEBUG
+#include "simpledebugutils.h"
+#endif
+
+
+// ================= MEMBER FUNCTIONS =======================
+//
+
+// ----------------------------------------------------------
+// CSimpleConnection::CSimpleConnection
+// ----------------------------------------------------------
+//
+CSimpleConnection::CSimpleConnection( MSimpleConnectionObserver& aObserver )
+: iState( EInactive ),
+  iObserver( aObserver ),
+  iOpId(0),
+  iRequestList( CSimpleEngineRequest::LinkOffset())
+    {
+    }
+
+// ----------------------------------------------------------
+// CSimpleConnection::~CSimpleConnection
+// ----------------------------------------------------------
+//
+CSimpleConnection::~CSimpleConnection()
+    {
+    delete iConnection;
+    DeleteRequests();
+    }
+
+// ----------------------------------------------------------
+// CSimpleConnection::ConstructL
+// ----------------------------------------------------------
+//
+void CSimpleConnection::ConstructL( TInt32 aServiceId )
+    {
+    // Create CSimpleSipConnection entity in simplesiputils.dll
+    iConnection = CSimpleSipConnection::NewL();
+    // Set operation id ranges
+    iLimitLowerValue = TSimpleEngineUtils::OpIdRange();
+    iLimitUpperValue = iLimitLowerValue + KRangeSize;
+    iOpId = iLimitLowerValue;
+
+    // start to listen to status events
+    IncreaseOpId();
+    CSimpleEngineRequest* req = CSimpleEngineRequest::NewL(
+        *this, MSimpleEngineRequest::EListenEvents, iOpId );
+    CleanupStack::PushL( req );
+    if ( aServiceId )
+        {
+        iConnection->SetServiceId( aServiceId );
+        }
+    iConnection->DispatchReqL( *req );
+    iRequestList.AddLast( *req );
+    CleanupStack::Pop( req );
+    }
+
+// ----------------------------------------------------------
+// CSimpleConnection::NewL
+// ----------------------------------------------------------
+//
+CSimpleConnection* CSimpleConnection::NewL(
+    MSimpleConnectionObserver& aObserver )
+    {
+#ifdef _DEBUG
+    TSimpleLogger::Log(_L("SimpleConnection: NewL" ));
+#endif
+    CSimpleConnection* self = new (ELeave) CSimpleConnection( aObserver );
+    CleanupStack::PushL( self );
+    self->ConstructL( NULL );
+    CleanupStack::Pop( self );
+    return self;
+    }
+
+// ----------------------------------------------------------
+// CSimpleConnection::NewL
+// ----------------------------------------------------------
+//
+CSimpleConnection* CSimpleConnection::NewL(
+    MSimpleConnectionObserver& aObserver, TInt32 aServiceId )
+    {
+#ifdef _DEBUG
+    TSimpleLogger::Log(_L("SimpleConnection: NewL" ));
+#endif
+    CSimpleConnection* self = new (ELeave) CSimpleConnection( aObserver );
+    CleanupStack::PushL( self );
+    self->ConstructL( aServiceId );
+    CleanupStack::Pop( self );
+    return self;
+    }
+
+// ----------------------------------------------------------
+// CSimpleConnection::Connection
+// ----------------------------------------------------------
+//
+CSimpleSipConnection* CSimpleConnection::Connection()
+    {
+    return iConnection;
+    }
+
+// ----------------------------------------------------------
+// CSimpleConnection::Close
+// ----------------------------------------------------------
+//
+void CSimpleConnection::Close( )
+    {
+    delete this;
+    }
+
+// ----------------------------------------------------------
+// CSimpleConnection::LoginL
+// ----------------------------------------------------------
+//
+TInt CSimpleConnection::LoginL(  )
+    {
+    return LoginL( 0 );
+    }
+
+// ----------------------------------------------------------
+// CSimpleConnection::LoginL
+// ----------------------------------------------------------
+//
+TInt CSimpleConnection::LoginL( TInt aId  )
+    {
+#ifdef _DEBUG
+    TSimpleLogger::Log(_L("SimpleConnection: LoginL aId=%d" ), aId);
+#endif
+    // check state
+    if ( iState != EInactive )
+        {
+        User::Leave(KErrNotReady);
+        }
+
+    IncreaseOpId();
+
+    CSimpleEngineRequest* req = CSimpleEngineRequest::NewL(
+        *this, MSimpleEngineRequest::ERegister, iOpId );
+    req->SetAux( aId );
+    CleanupStack::PushL( req );
+    iConnection->DispatchReqL( *req );
+    iRequestList.AddLast( *req );
+    CleanupStack::Pop( req );
+    SetConnectionStatus( EIdle );
+    return iOpId;
+    }
+
+// ----------------------------------------------------------
+// CSimpleConnection::ConnectionStatus
+// ----------------------------------------------------------
+//
+MSimpleConnection::TSimpleState CSimpleConnection::ConnectionStatus()
+    {
+#ifdef _DEBUG
+    TSimpleLogger::Log(_L("SimpleConnection: ConnectionStatus returns %d" ), iState);
+#endif
+    return iState;
+    }
+    
+// ----------------------------------------------------------
+// CSimpleConnection::CurrentSIPIdentityL
+// ----------------------------------------------------------
+//    
+TPtrC8 CSimpleConnection::CurrentSIPIdentityL()
+    {
+    return iConnection->CurrentSIPIdentityL();    
+    }
+
+// ----------------------------------------------------------
+// CSimpleConnection::Complete
+// ----------------------------------------------------------
+//
+void CSimpleConnection::Complete(
+    TInt aOpId, TInt aStatus, MSimpleEngineRequest& aReq )
+    {
+#ifdef _DEBUG
+    TSimpleLogger::Log(_L("SimpleConnection: Complete opid=%d status=%d" ),
+        aOpId, aStatus );
+#endif
+    // check the SIP state from another DLL
+    TSimpleSipState st = iConnection->SIPState();
+    MSimpleConnection::TSimpleState oldState = ConnectionStatus();
+    MSimpleConnection::TSimpleState newState = ConvertState( st );
+    SetConnectionStatus( newState );
+
+    if ( aReq.RequestType() != MSimpleEngineRequest::EListenEvents )
+        {
+        // delete corresponding request from another DLL too.
+        aReq.ModifyType( MSimpleEngineRequest::EDestroy );
+        TRAP_IGNORE( iConnection->DispatchReqL( aReq ));
+        // delete request from this DLL.
+        aReq.Destroy();
+#ifdef _DEBUG
+    TSimpleLogger::Log(_L("SimpleConnection: call  RequestCompleteL opid=%d status=%d" ),
+        aOpId, aStatus );
+#endif
+        TRAP_IGNORE( iObserver.RequestCompleteL( aOpId, aStatus ) );
+        }
+    else
+        {
+        // This is status event
+        if ( oldState != newState )
+            {
+#ifdef _DEBUG
+            TSimpleLogger::Log(_L("SimpleConnection: call ConnectionStatusL state=%d" ),
+            newState );
+#endif
+            TRAP_IGNORE( iObserver.ConnectionStatusL( newState ) );
+            }
+        }
+    }
+
+// -----------------------------------------------------------------------------
+// CSimpleConnection::DeleteRequests
+// -----------------------------------------------------------------------------
+void CSimpleConnection::DeleteRequests()
+    {
+#ifdef _DEBUG
+    TSimpleLogger::Log(_L("SimpleConnection: DeleteRequests" ));
+#endif
+    // Delete all buffered transaction requests
+    TDblQueIter<CSimpleEngineRequest> rIter( iRequestList );
+    rIter.SetToFirst();
+
+    while ( rIter )
+        {
+        CSimpleEngineRequest* req = rIter;
+        rIter++; //lint !e1757
+        req->Destroy();
+        }
+    }
+
+// ----------------------------------------------------------------------------
+// CSimpleConnection::IncreaseOpId
+// ----------------------------------------------------------------------------
+void CSimpleConnection::IncreaseOpId( )
+    {
+    iOpId++;
+    if( iOpId >= iLimitUpperValue )
+        {
+        iOpId = iLimitLowerValue;
+        }
+    }
+
+// ----------------------------------------------------------------------------
+// CSimpleConnection::ConvertState
+// ----------------------------------------------------------------------------
+MSimpleConnection::TSimpleState CSimpleConnection::ConvertState( TSimpleSipState aState )
+    {
+    switch( aState )
+        {
+        case ESimpleSipIdle:
+            return MSimpleConnection::EIdle;
+        case ESimpleSipActive:
+            return MSimpleConnection::EActive;
+        case ESimpleSipSuspend:
+            return ESuspend;
+        case ESimpleSipInactive:
+            return EInactive;
+        case ESimpleSipUnavailable:
+        default:
+            return EUnavailable;
+        }; //lint !e960
+    }
+
+// ----------------------------------------------------------------------------
+// CSimpleConnection::SetConnectionStatus
+// ----------------------------------------------------------------------------
+void CSimpleConnection::SetConnectionStatus( TSimpleState aState )
+    {
+#ifdef _DEBUG
+    TSimpleLogger::Log(_L("SimpleConnection: SetConnectionStatus %d" ), aState );
+#endif
+    iState = aState;
+    }
+