--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/eventsui/eventshandlerui/eventshandler/src/evthandlerclient.cpp Tue Feb 02 00:16:03 2010 +0200
@@ -0,0 +1,94 @@
+/*
+* Copyright (c) 2008 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: Client for Events Handler Server
+*
+*/
+
+
+#include "evthandlerclientserver.h"
+#include "evthandlerclient.h"
+#include "evthandlerserverconsts.h"
+#include "evtdebug.h"
+
+// ----------------------------------------------------------------------------
+// StartServer()
+// ----------------------------------------------------------------------------
+//
+static TInt StartServer()
+/*
+ * Start the server process. Simultaneous launching
+ * of two such processes should be detected when the second one attempts to
+ * create the server object, failing with KErrAlreadyExists.
+ */
+ {
+ EVTUIDEBUG("+ StartServer()");
+ const TUidType serverUid( KNullUid, KNullUid, KServerUid3);
+ RProcess server;
+ TInt r = server.Create( KEvtHandlerServerImg, KNullDesC, serverUid );
+ if (r != KErrNone)
+ return r;
+ TRequestStatus stat;
+ server.Rendezvous(stat);
+ if (stat != KRequestPending)
+ server.Kill( 0 ); // abort startup
+ else
+ server.Resume(); // logon OK - start the server
+ User::WaitForRequest( stat ); // wait for start or death
+ // we can't use the 'exit reason' if the server panicked as this
+ // is the panic 'reason' and may be '0' which cannot be distinguished
+ // from KErrNone
+ r = ( server.ExitType() == EExitPanic ) ? KErrGeneral : stat.Int();
+ server.Close();
+ EVTUIDEBUG("- StartServer()");
+ return r;
+ }
+
+// ----------------------------------------------------------------------------
+// REvtHandlerSession::Connect()
+// ----------------------------------------------------------------------------
+//
+EXPORT_C TInt REvtHandlerSession::Connect()
+/*
+ * Connect to the server, attempting to start it if necessary
+ */
+ {
+ EVTUIDEBUG("+ REvtHandlerSession::Connect()");
+ TInt retry = 2;
+ for (;;)
+ {
+ TInt r = CreateSession( KEvtHandlerServerName, TVersion( 0, 0, 0), 1 );
+ if ( r != KErrNotFound && r != KErrServerTerminated )
+ return r;
+
+ if ( --retry == 0 )
+ return r;
+
+ r = StartServer();
+ if ( r !=KErrNone && r != KErrAlreadyExists )
+ return r;
+ }
+ }
+
+// ----------------------------------------------------------------------------
+// REvtHandlerSession::SendEventId()
+// ----------------------------------------------------------------------------
+//
+EXPORT_C TInt REvtHandlerSession::SendEventId( const TDesC& aMessage, const TInt aAccuracy )
+ {
+ EVTUIDEBUG("+ REvtHandlerSession::SendEventId()");
+
+ if ( aMessage.Length() > KMaxEvtHandlerMessage )
+ return KErrArgument;
+ return SendReceive( ESendEventId, TIpcArgs( &aMessage, aAccuracy ) );
+ }