public async Task <string> GetFirstToRespond(int timeoutSeconds, params string[] endpoints)
{
var tasks = endpoints.Select(endpoint => _endpointDetector.GetEndpointStatus(timeoutSeconds, endpoint)).ToList();
while (tasks.Count > 0)
{
// Whenever any task finishes...
var task = await Task.WhenAny(tasks).ConfigureAwait(false);
// Remove that task from the list so the while loop can terminate if no endpoints are successful.
tasks.Remove(task);
switch (task.Status)
{
// If the task ran to completion...
case TaskStatus.RanToCompletion:
{
// ...and the server actually responded...
if (task.Result.Success)
{
// ...then return that endpoint.
return(task.Result.Endpoint);
}
break;
}
}
}
return(null);
}
