private CallbackResult <TResponse> OnWait <TResponse>(string messageId)
{
var spinner = new SpinWait();
var startWait = DateTime.UtcNow;
while (true)
{
// Cancel
if (_cts.IsCancellationRequested)
{
return(CallbackResult <TResponse> .Error("Cancelled"));
}
// Timeout
var now = DateTime.UtcNow;
var diff = now.Subtract(startWait);
if (diff > _timeout)
{
return(CallbackResult <TResponse> .Error("Timeout"));
}
// Prevent CPU burning
spinner.SpinOnce();
if (_callbackMessages.TryGetValue(messageId, out var value))
{
_callbackMessages.TryRemove(messageId, out _);
var convertedValue = _valueConverterService.Convert <TResponse>(value);
return(new CallbackResult <TResponse>(convertedValue));
}
}
}