public void OnAsyncTaskEnded(object sender, AsyncTaskEndedEventArgs args)
{
if (_startTimestampTicks == 0)
{
throw new InvalidOperationException("OnAsyncEventStarted was not invoked");
}
long endTimestampTicks = _timeSource.GetTimestampTicks();
long startTimestampUs = _timeSource.ConvertTicksToUs(_startTimestampTicks);
long durationUs = _timeSource.GetDurationUs(_startTimestampTicks, endTimestampTicks);
int threadId = Thread.CurrentThread.ManagedThreadId;
_tracingLogger.TraceEvent(args.CallerName, EventType.Async, args.CallerType, durationUs,
startTimestampUs, threadId);
_startTimestampTicks = 0;
}
public Task <T> SubmitAsync <T>(Func <Task <T> > asyncTask, CancellationToken token,
string callerMethodName, Type callerType)
{
var completionSource = new TaskCompletionSource <T>();
token.Register(() => completionSource.TrySetCanceled(token));
_asyncTasksQueue.Enqueue(async() =>
{
OnAsyncTaskStarted?.Invoke(this, EventArgs.Empty);
try
{
if (!token.IsCancellationRequested)
{
_insideAsync.Value = true;
_currentOperationCancellationToken = token;
completionSource.TrySetResult(await asyncTask());
}
}
catch (Exception e)
{
completionSource.TrySetException(e);
}
finally
{
var eventArgs = new AsyncTaskEndedEventArgs
{
CallerName = callerMethodName, CallerType = callerType
};
OnAsyncTaskEnded?.Invoke(this, eventArgs);
_currentOperationCancellationToken = CancellationToken.None;
_insideAsync.Value = false;
}
});
return(completionSource.Task);
}