public IAsyncResult BeginInvoke(string topic, object source, object e, AsyncCallback callback, object callbackState)
{
if (topic == null)
{
throw new ArgumentNullException("topic");
}
ExTraceGlobals.DispatchTracer.TraceDebug <string, string>((long)this.GetHashCode(), this.InstanceNameFormatted + "async dispatch event {0} {1} callback", topic, (callback == null) ? "without" : "with");
if (this.closed)
{
throw new InvalidOperationException(MExRuntimeStrings.InvalidState);
}
MExAsyncResult result = new MExAsyncResult(callback, callbackState);
if (!this.dispatcher.HasHandler(topic))
{
ExTraceGlobals.DispatchTracer.TraceDebug <string>((long)this.GetHashCode(), this.InstanceNameFormatted + "no handler for {0}", topic);
this.pendingResult = result;
this.pendingResult.InvokeCompleted();
}
else
{
lock (this.syncRoot)
{
if (this.closed)
{
throw new InvalidOperationException(MExRuntimeStrings.InvalidState);
}
this.BindContexts(source, e);
this.eventTopic = topic;
this.pendingResult = result;
this.AsyncInvoke(null);
}
}
return(result);
}
private void AgentAsyncCompletionCallback(AgentAsyncContext context)
{
if (this.resumeAgentCallback != null && this.resumeAgentCallback())
{
MExDiagnostics.EventLog.LogEvent(EdgeExtensibilityEventLogConstants.Tuple_MExAgentDidNotCallResume, this.lastAgentName, new object[]
{
this.lastAgentName,
this.eventTopic
});
}
ExTraceGlobals.DispatchTracer.TraceDebug <string, string>((long)this.GetHashCode(), this.InstanceNameFormatted + "async completed, async result {0}, exception {1}", this.isSyncInvoke ? "n/a" : this.pendingResult.GetHashCode().ToString(CultureInfo.InvariantCulture), (context.AsyncException == null) ? "n/a" : context.AsyncException.GetType().FullName);
if (this.isSyncInvoke)
{
if (context.AsyncException != null)
{
MExAsyncResult.WrapAndRethrowException(context.AsyncException, new LocalizedString(MExRuntimeStrings.AgentFault(this.currentAgent.Name, this.eventTopic)));
}
this.syncWaitHandle.Set();
return;
}
if (context.AsyncException != null)
{
this.pendingResult.AsyncException = context.AsyncException;
this.HaltExecution();
MExSession.LogMexAgentFaultEvent(MExDiagnostics.EventLog, context.AsyncException, this.currentAgent.Name, this.eventTopic);
}
if (this.completeAsyncAgentCallback != null)
{
this.completeAsyncAgentCallback();
}
this.Dispatcher.AgentInvokeCompleted(this);
this.ResumeExecution();
}
internal void EndInvoke()
{
if (this.asyncException != null)
{
MExAsyncResult.WrapAndRethrowException(this.asyncException, new LocalizedString(MExRuntimeStrings.AgentFault(this.faultyAgentName, this.eventTopic)));
}
WaitHandle waitHandle = null;
lock (this.syncRoot)
{
if (!this.isCompleted)
{
waitHandle = this.AsyncWaitHandle;
}
}
if (waitHandle != null)
{
waitHandle.WaitOne();
}
if (this.asyncException != null)
{
MExAsyncResult.WrapAndRethrowException(this.asyncException, new LocalizedString(MExRuntimeStrings.AgentFault(this.faultyAgentName, this.eventTopic)));
}
}
