--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/calendarui/server/CalenSvr/src/CalSvrSession.cpp	Tue Feb 02 10:12:19 2010 +0200
@@ -0,0 +1,289 @@
+/*
+* Copyright (c) 2004 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:   Provides methods for calendar session for a client thread on the server-side.
+ *
+*/
+
+
+
+//debug
+#include "calendarui_debug.h"
+
+#include "CalSvrSession.h"
+
+#include "CalenServer.h"
+#include "CalSvrDef.h"
+
+
+/**
+ * CCalSvrSession
+ **/
+
+// construct/destruct
+
+// -----------------------------------------------------------------------------
+// ?classname::?member_function
+// ?implementation_description
+// (other items were commented in a header).
+// -----------------------------------------------------------------------------
+//
+CCalSvrSession::CCalSvrSession()
+    {
+    TRACE_ENTRY_POINT;
+    TRACE_EXIT_POINT;
+    }
+
+// FIXME: this is never called ! Correct would have been createL
+// -----------------------------------------------------------------------------
+// ?classname::?member_function
+// ?implementation_description
+// (other items were commented in a header).
+// -----------------------------------------------------------------------------
+//
+void CCalSvrSession::ConstructL(CCalenServer& /*aServer*/)
+    {
+    TRACE_ENTRY_POINT;
+    TRACE_EXIT_POINT;
+    }
+
+// -----------------------------------------------------------------------------
+// ?classname::?member_function
+// ?implementation_description
+// (other items were commented in a header).
+// -----------------------------------------------------------------------------
+//
+CCalSvrSession::~CCalSvrSession()
+    {
+    TRACE_ENTRY_POINT;
+    
+    PIM_TRAPD_HANDLE( DoDestructL() );
+    
+    TRACE_EXIT_POINT;
+    }
+
+void CCalSvrSession::DoDestructL()
+    {
+    TRACE_ENTRY_POINT;
+    
+    CancelInitializeL();
+
+    if( iRegistered ) // if still registered
+        {
+        Server()->UnregisterUserL(*this);        
+        iRegistered = EFalse;
+        }
+    
+    TRACE_EXIT_POINT;    
+    }
+// -----------------------------------------------------------------------------
+// ?classname::?member_function
+// ?implementation_description
+// (other items were commented in a header).
+// -----------------------------------------------------------------------------
+//
+CCalenServer* CCalSvrSession::Server() const
+    {
+    TRACE_ENTRY_POINT;
+    /**
+    * Return the Calendar server.
+    * 
+    * This deliberately hides the CSession2 version of this
+    * function, to prevent lots of ugly casts around the code.
+    **/
+    CCalenServer* server = const_cast<CCalenServer*>(static_cast<const CCalenServer*>(CSession2::Server()));
+
+    TRACE_EXIT_POINT;
+    return server;    
+    }
+
+// service dispatcher - from CSession2
+
+// -----------------------------------------------------------------------------
+// ?classname::?member_function
+// ?implementation_description
+// (other items were commented in a header).
+// -----------------------------------------------------------------------------
+//
+void CCalSvrSession::ServiceL(const RMessage2& aMessage)
+    {
+    TRACE_ENTRY_POINT;
+    
+    switch (aMessage.Function())
+        {
+        case ECalSvrInitialize:
+            {
+            InitializeL(aMessage);
+            // Asynchronous service, message completion not done here
+            }
+            break;
+
+        case ECalSvrUninitialize:
+            {
+            UninitializeL();
+            aMessage.Complete(KErrNone);
+            }
+            break;
+
+        case ECalSvrCancelInitialize:
+            {
+            CancelInitializeL();
+            aMessage.Complete(KErrNone);
+            }
+            break;
+
+        default:
+            Server()->PanicClient(aMessage, EBadRequest);
+
+        }
+    
+    TRACE_EXIT_POINT;
+    }
+
+// -----------------------------------------------------------------------------
+// ?classname::?member_function
+// ?implementation_description
+// (other items were commented in a header).
+// -----------------------------------------------------------------------------
+//
+void CCalSvrSession::CancelInitializeL()
+    {
+    TRACE_ENTRY_POINT;
+    
+    if(!iInitActive)
+        {
+        TRACE_EXIT_POINT;
+        return;
+        }
+
+    Server()->UnregisterUserL(*this);
+    iRegistered = EFalse;
+
+    iInitMessage.Complete(KErrCancel);
+    iInitActive = EFalse;
+    
+    TRACE_EXIT_POINT;
+    }
+
+// -----------------------------------------------------------------------------
+// ?classname::?member_function
+// ?implementation_description
+// (other items were commented in a header).
+// -----------------------------------------------------------------------------
+//
+void CCalSvrSession::InitializeL(const RMessage2& aMessage)
+    {
+    TRACE_ENTRY_POINT;
+    
+    __ASSERT_DEBUG(!iInitActive, User::Panic(_L("CalSvrSession::InitializeL"), 0));
+    __ASSERT_DEBUG(!iRegistered, User::Panic(_L("CalSvrSession::InitializeL"), 1));
+    iInitMessage = aMessage;
+    iInitActive = ETrue;
+    iRegistered = ETrue;
+    Server()->RegisterUserL(*this);
+    
+    TRACE_EXIT_POINT;
+    }
+
+// -----------------------------------------------------------------------------
+// ?classname::?member_function
+// ?implementation_description
+// (other items were commented in a header).
+// -----------------------------------------------------------------------------
+//
+void CCalSvrSession::UninitializeL()
+    {
+    TRACE_ENTRY_POINT;
+    
+    __ASSERT_DEBUG(iRegistered, User::Panic(_L("CalSvrSession::UninitializeL"), 0));
+    CancelInitializeL(); // this will unregister if init active
+    if (iRegistered) // if still registered 
+        {
+        Server()->UnregisterUserL(*this);
+        iRegistered = EFalse;
+        }
+    
+    TRACE_EXIT_POINT;
+    }
+
+// -----------------------------------------------------------------------------
+// ?classname::?member_function
+// ?implementation_description
+// (other items were commented in a header).
+// -----------------------------------------------------------------------------
+//
+void CCalSvrSession::DatabaseOpened()
+    {
+    TRACE_ENTRY_POINT;
+
+    HandleInitReady();
+    
+    TRACE_EXIT_POINT;
+    }
+
+// -----------------------------------------------------------------------------
+// ?classname::?member_function
+// ?implementation_description
+// (other items were commented in a header).
+// -----------------------------------------------------------------------------
+//
+void CCalSvrSession::DatabaseTemporarilyClosed()
+    {
+    TRACE_ENTRY_POINT;
+
+    // Do not do anything here.
+    // Client doesn't need to know anything about database being temporarily 
+    // closed, because initialize/uninitialize mechanism is meant for
+    // optimization only. From client perspective, it is not real connection
+    // to agenda database, but "a guarantee" that someone is holding open
+    // connection to agenda database, so that subsequent connections from 
+    // clients are cheaper.
+    // 
+    // After restoring is completed, we need to be sure that there are 
+    // no unnecessary notifications to clients. 
+    // When we get DatabaseOpened after DatabaseTemporarilyClosed, 
+    // there are two options:
+    //   1) Client has been already notified in HandleInitReady.
+    //      In this case iInitActive is EFalse, and we don't inform 
+    //      client. Everything is ok.
+    //   2) Client has been notified yet, i.e. restore started in middle of 
+    //      CalenSvrDBManager opening connection to database. In this case
+    //      we want client to be notified. And this happens as iInitActive 
+    //      is still ETrue.
+    TRACE_EXIT_POINT;
+    }
+
+/**
+ * Called by server when agenda observer notifies of change
+ **/
+// -----------------------------------------------------------------------------
+// ?classname::?member_function
+// ?implementation_description
+// (other items were commented in a header).
+// -----------------------------------------------------------------------------
+//
+void CCalSvrSession::HandleInitReady()
+    {
+    TRACE_ENTRY_POINT;
+    
+    if(iInitActive)
+        {
+        iInitMessage.Complete(KErrNone);
+        iInitActive = EFalse;
+        }
+    
+    TRACE_EXIT_POINT;
+    }
+
+
+// End of File