diff -r 000000000000 -r 164170e6151a securitydialogs/lockclient/src/lockaccessextension.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/securitydialogs/lockclient/src/lockaccessextension.cpp	Tue Jan 26 15:20:08 2010 +0200
@@ -0,0 +1,139 @@
+/*
+* Copyright (c) 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:  Extension to lockapp clients.
+ *
+*/
+
+
+#include "lockaccessextension.h"
+#include <lockappclientserver.h>
+#include <e32property.h> // P&S API
+#include <apgtask.h> // TApaTask, TApaTaskList
+#include <coemain.h> // CCoeEnv
+
+
+// Constants
+const TInt KTimesToConnectServer( 2);
+const TInt KTimeoutBeforeRetrying( 50000);
+
+// ---------------------------------------------------------------------------
+// Gets server version, needed for connection
+// ---------------------------------------------------------------------------
+TVersion RLockAccessExtension::GetVersion( )
+	{
+	return TVersion( KLockAppServMajorVersion, KLockAppServMinorVersion, KLockAppServBuildVersion );
+	}
+
+// ---------------------------------------------------------------------------
+// Connects client to lockapp application server
+// ---------------------------------------------------------------------------
+TInt RLockAccessExtension::TryConnect( RWsSession& aWsSession )
+	{
+	TInt ret(KErrNone);
+	TApaTaskList list(aWsSession);
+	// check that lockapp is running
+	TApaTask task = list.FindApp( KLockAppUid );
+	if ( task.Exists( ) )
+		{
+		if ( Handle( )== NULL )
+			{
+			// connect session to the server
+			ret = CreateSession( KLockAppServerName, GetVersion( ) );
+			}
+		else
+			{
+			// not CreateSession because Handle( ) not NULL
+			}
+		}
+	else
+		{
+		// LockApp task not found
+		RDebug::Printf( "%s %s (%u) ???? LockApp task not found=%x", __FILE__, __PRETTY_FUNCTION__, __LINE__, KLockAppUid );
+		ret = KErrNotReady;
+		}
+	return ret;
+	}
+
+// ---------------------------------------------------------------------------
+// Ensures that the connection to the service is alive.
+// ---------------------------------------------------------------------------
+TInt RLockAccessExtension::EnsureConnected( )
+	{
+	TInt ret(KErrNone);
+	// we need CCoeEnv because of window group list
+	CCoeEnv* coeEnv = CCoeEnv::Static( );
+	if ( coeEnv )
+		{
+		// All server connections are tried to be made KTriesToConnectServer times because
+		// occasional fails on connections are possible at least on some servers
+		TInt retry(0);
+		while ( (ret = TryConnect( coeEnv->WsSession( ) ) ) != KErrNone && 
+				(retry++) <= KTimesToConnectServer )
+			{
+			User::After( KTimeoutBeforeRetrying );
+			}
+		// the connection state gets returned
+		}
+	else
+		{
+		// No CCoeEnv
+		ret = KErrNotSupported;
+		}
+	return ret;
+	}
+
+// ---------------------------------------------------------------------------
+// Sends blind message to lockapp if the session is connected.
+// ---------------------------------------------------------------------------
+TInt RLockAccessExtension::SendMessage( TInt aMessage )
+	{
+	TInt ret = EnsureConnected( );
+	if ( ret == KErrNone )
+		{
+		ret = SendReceive( aMessage );
+		}
+	return ret;
+	}
+
+// ---------------------------------------------------------------------------
+// Sends blind message to lockapp if the session is connected.
+// ---------------------------------------------------------------------------
+TInt RLockAccessExtension::SendMessage( TInt aMessage, TInt aParam1 )
+	{
+	TInt ret = EnsureConnected( );
+	if ( ret == KErrNone )
+		{
+		// assign parameters to IPC argument
+		TIpcArgs args(aParam1);
+		ret = SendReceive( aMessage, args );
+		}
+	return ret;
+	}
+
+// ---------------------------------------------------------------------------
+// Sends blind message to lockapp if the session is connected.
+// ---------------------------------------------------------------------------
+TInt RLockAccessExtension::SendMessage( TInt aMessage, TInt aParam1, TInt aParam2 )
+	{
+	TInt ret = EnsureConnected( );
+	if ( ret == KErrNone )
+		{
+		// assign parameters to IPC argument
+		TIpcArgs args( aParam1, aParam2);
+		ret = SendReceive( aMessage, args );
+		}
+	return ret;
+	}
+
+// End of File