public Server Choose(ILoadBalancer loadBalancer)
{
var until = DateTime.Now.AddMilliseconds(MaxRetryMilliseconds);
Server server = null;
while ((server == null || !server.IsAlive) && DateTime.Now < until)
{
if (_cancellationToken.HasValue)
{
while (!_cancellationToken.Value.IsCancellationRequested)
{
server = _subRule.Choose(loadBalancer);
if ((server == null || !server.IsAlive) && DateTime.Now < until)
{
Thread.Sleep(5 * 1000);
continue;
}
break;
}
}
else
{
var count = 0;
while (count++ < MaxRetryCount)
{
server = _subRule.Choose(loadBalancer);
if ((server == null || !server.IsAlive) && DateTime.Now < until)
{
Thread.Sleep(5 * 1000);
continue;
}
break;
}
}
}
return((server == null || !server.IsAlive) ? null : server);
}
public Server Choose()
{
while (true)
{
if (_pingInProgress == 1)
{
Thread.Sleep(5 * 1000);
}
else
{
_counter.Increment();
try
{
return(_rule.Choose(this));
}
catch (Exception exception)
{
_logger.LogError($"LoadBalancer [{_name}]: Error choosing server for rule {_rule}", exception);
return(null);
}
}
}
}