private void SetExpirationTime(ICollection <CurrencyRate> rates)
{
foreach (var rate in rates)
{
rate.ExpirationTime = timetable.GetNextMoment(rate.TimeOfReceipt) + lagToExpiration;
}
}
private async Task WorkCycle()
{
var watch = new Stopwatch();
var currentMoment = UtcNow;
while (true)
{
watch.Restart();
try
{
cts.Token.ThrowIfCancellationRequested();
logger.LogDebug("Updating rates...");
await ratesUpdater.UpdateRates(cts.Token);
watch.Stop();
logger.LogDebug($"Updating takes {watch.ElapsedMilliseconds} ms.");
var nextMoment = timetable.GetNextMoment(currentMoment);
var now = UtcNow;
// should already be started
if (nextMoment <= now)
{
currentMoment = now;
continue;
}
// need to wait next moment
logger.LogDebug($"Lets sleep {nextMoment - now}");
await Task.Delay(nextMoment - now, cts.Token);
currentMoment = nextMoment;
}
catch (OperationCanceledException)
{
break;
}
catch (Exception e)
{
logger.LogError(e, e.Message);
}
}
stopped.Set();
}