ProviderAndSource.cs

// register handlers for events on the session source
// more on this later...

// decide which provider to listen to with filters if needed
userSession.EnableProvider(
    ClrTraceEventParser.ProviderGuid,
    TraceEventLevel.Verbose,
    (ulong)(
    ClrTraceEventParser.Keywords.Contention |  // thread contention timing
    ClrTraceEventParser.Keywords.Threading |   // threadpool events
    ClrTraceEventParser.Keywords.Exception |   // get the first chance exceptions
    ClrTraceEventParser.Keywords.GCHeapAndTypeNames | 
    ClrTraceEventParser.Keywords.Type | // for finalizer and exceptions type names
    ClrTraceEventParser.Keywords.GC     // garbage collector details
    )
);

// this is a blocking call until the session is disposed
userSession.Source.Process();
Console.WriteLine("End of session");