private async Task UpdateWorkerAsync(int index)
{
for (;;)
{
DateTime lastStart = DateTime.Now;
IEnumerable <UserState <UserDetails> > users =
UserState <UserDetails> .EnumerateAll(x => (x % _numRssUpdateWorkers) == index);
foreach (var user in users)
{
try
{
if (!user.Data.AuthValid)
{
logger.Info($"User {user.Data.UserId} is skipped - auth is not valid");
continue;
}
logger.Info($"Fetching feeds for user {user.Data.UserId}");
await RunFetcherAsync(user.Data);
}
catch (Exception ex)
{
logger.Error(ex, "failed to run user data");
}
}
var nextStart = lastStart + _refreshInterval;
var now = DateTime.Now;
if (nextStart < now)
{
logger.Error($"Bot seems overloaded: last update cycle took over {_refreshInterval}");
continue;
}
var toSleepMillis = (int)(nextStart - now).TotalMilliseconds;
logger.Info($"Worker {index}: sleeping for {toSleepMillis}ms");
await Task.Delay(toSleepMillis);
}
}