public void CheckStatus()
{
Task t = Task.Run(() =>
{ //Prevents Lock of Form
try
{
Parallel.ForEach(ips, (x) => //does parallel but only exit after all finished
{
if (x.Last_Checked == null || (x.Last_Checked + TimeSpan.FromSeconds(cycleTime) < DateTime.Now && x.RunningCheck == false))
{//Never checked or last Check older than cycleTime
x.RunningCheck = true;
x.Last_Checked = DateTime.Now;
PingReply reply = Pinger.PingIP(x.IP_Address.ToString(), timeout); //new PingReply();
if (reply != null)
{//Ping is not null (means success or not)
string hostname = "";
if (cbHostnames.Checked == true && x.Hostname != null)
{ //Resolve hostname is enabled
hostname = Hostname.Get(x.IP_Address.ToString());
x.Hostname = hostname;
}
bool online = false;
if (reply.Status == IPStatus.Success)
{//Host is online
online = true;
if (x.First_Seen == null)
{
x.First_Seen = DateTime.Now;
}
x.Roundtrip = Convert.ToInt32(reply.RoundtripTime);
x.Last_Seen = DateTime.Now;
if (port != 0)
{
x.PortOpen = PortChecker.ScanPort(x.IP_Address, port);
}
}
if (x.Active == false && online == true)
{//Host Status changed from offline to online
//New Host
if (port != 0)
{
messageBox.Push("NEW: " + x.IP_Address + ", " + x.Hostname + " First Seen: " + x.First_Seen + " Port " + port + ": " + x.PortOpen);
}
else
{
messageBox.Push("NEW: " + x.IP_Address + ", " + x.Hostname + " First Seen: " + x.First_Seen);
}
}
else if (x.Active == true && online == false)
{//Host Status changed from online to offline
if (port != 0)
{
messageBox.Push("DISAPPEARED: " + x.IP_Address + ", " + x.Hostname + " Last Seen: " + x.Last_Seen + " Port " + port + ": " + x.PortOpen);
}
else
{
messageBox.Push("DISAPPEARED: " + x.IP_Address + ", " + x.Hostname + " Last Seen: " + x.Last_Seen);
}
}
x.Last_Checked = DateTime.Now;
x.Active = online;
x.CountChecks++;
x.RunningCheck = false;
}
}
});
}
catch (System.AggregateException e)
{
throw e;
}
});
UpdateMessage();
}
