public void CreatingDuplicateRealtimeSessionTaskResultsInFaultedTaskIfSessionReclaimIsOff()
{
const string duplicateSessionName = "testDuplicateRealtimeSession";
using (var reader1 = new ETWRealtimeProcessor(duplicateSessionName, true))
{
reader1.SubscribeToProvider(TestLogger.Write.Guid, EventLevel.Verbose);
var t1 = reader1.CreateProcessingTask();
Assert.AreEqual(TaskStatus.Running, t1.Status);
using (var reader2 = new ETWRealtimeProcessor(duplicateSessionName, false))
{
reader2.SubscribeToProvider(TestLogger.Write.Guid, EventLevel.Verbose);
try
{
var t2 = reader2.CreateProcessingTask();
t2.Wait(); // expect this to fail
}
catch (AggregateException ex)
{
Assert.AreEqual(typeof(OperationCanceledException), ex.InnerException.GetType());
}
}
Assert.AreEqual(TaskStatus.Running, t1.Status);
reader1.StopProcessing();
t1.Wait();
}
}
private static void SetupRealtimeProcessor()
{
var sessionName = string.Format("{0}-ELT-realtime", Environment.UserName);
var realtimeSession = new ETWRealtimeProcessor(sessionName);
bool added = false;
foreach (var arg in options.Arguments)
{
string[] split = arg.Split('!');
Guid providerID;
var providers = new List<Guid>();
var minimumSeverity = EventLevel.Informational;
long keywords = 0x0;
if (split[0].Equals("CLR", StringComparison.OrdinalIgnoreCase))
{
providers.Add(ClrTraceEventParser.ProviderGuid);
}
else if (split[0].Equals("Kernel", StringComparison.OrdinalIgnoreCase))
{
providers.Add(KernelTraceEventParser.ProviderGuid);
}
else if (!Guid.TryParse(split[0], out providerID))
{
// If it's not a GUID it might be an assembly -- we can try that...
if (!GetProvidersFromAssembly(split[0], providers))
{
ShowErrorAndExit("{0} is not a validly formatted GUID, and not a usable assembly", split[0]);
}
}
else
{
providers.Add(providerID);
}
// Ignore if the string is null(won't be), empty, or whitespace -- all these will just mean that we
// use default severity.
if (split.Length > 1 && !string.IsNullOrWhiteSpace(split[1]))
{
minimumSeverity = ETWEvent.CharToEventLevel(split[1][0]);
}
if (split.Length > 2)
{
string num = split[2];
if (num.StartsWith("0x", StringComparison.OrdinalIgnoreCase))
{
num = num.Substring(2);
}
if (!long.TryParse(num, NumberStyles.HexNumber, CultureInfo.InvariantCulture, out keywords))
{
ShowErrorAndExit("Keyword value {0} is not a valid hexadecimal number", split[2]);
}
}
foreach (var id in providers)
{
realtimeSession.SubscribeToProvider(id, minimumSeverity, keywords);
}
added = true;
}
if (!added)
{
ShowErrorAndExit("No providers given to subscribe to!");
}
processor = realtimeSession;
}
public void CanReadEventsFromRealtimeSession()
{
using (var reader = new ETWRealtimeProcessor("testRealtimeSession"))
{
reader.SubscribeToProvider(TestLogger.Write.Guid, EventLevel.Verbose);
reader.EventProcessed += delegate(ETWEvent entry)
{
ValidateEventArgs(entry);
if (reader.Count == 4)
{
reader.StopProcessing();
}
};
var processorTask = reader.CreateProcessingTask();
WriteTestEvents();
processorTask.Wait();
Assert.IsTrue(processorTask.IsCompleted);
Assert.AreEqual(4, reader.Count);
Assert.AreEqual(0, reader.UnreadableEvents);
}
}
