private void Worker()
{
do
{
List <IPAddress> addresses = null;
int activeCount = -1;
lock (_lock)
{
activeCount = active.Count;
addresses = queue.Take(MaxSimultaneousRequests - activeCount).ToList();
active.AddRange(addresses);
}
if (addresses != null && addresses.Count > 0)
{
foreach (var address in addresses)
{
PingSent?.Invoke(address);
var ping = new Ping();
lock (_lock) activeRequests.Add(ping);
ping.PingCompleted += Ping_PingCompleted;
ping.SendAsync(address, Timeout, address);
// Remove from queue
lock (_lock) queue.RemoveAll(o => o == address);
}
}
} while (!stop.WaitOne(10, true) && Count > 0);
}
private void PingQueue_PingSent(IPAddress address)
{
PingSent?.Invoke(this, address);
}