static void PingHost(Host host)
{
// increment the host attempts
host.Attempts++;
// Ping Reply class
//https://msdn.microsoft.com/en-us/library/system.net.networkinformation.ping%28v=vs.110%29.aspx?f=255&MSPPError=-2147217396
var ping = new Ping();
var waiter = new AutoResetEvent(false);
ping.PingCompleted += PingCompletedCallback;
// Create a buffer of 32 bytes of data to be transmitted.
const string data = "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa";
var buffer = Encoding.ASCII.GetBytes(data);
// Wait 12 seconds for a reply.
const int timeout = 12000;
// Set options for transmission:
// The data can go through 64 gateways or routers
// before it is destroyed, and the data packet
// cannot be fragmented.
var options = new PingOptions(64, true);
// Send the ping asynchronously.
// Use the waiter as the user token.
// When the callback completes, it can wake up this thread.
try
{
ping.SendAsync(host.Address, timeout, buffer, options, waiter);
}
catch
{
host.Exceptions++;
}
}
static private void PingAll(List <string> ips)
{
ips.AsParallel().Select(ip => { Console.WriteLine("Try " + ip); Ping ping = new Ping(); ping.PingCompleted += Ping_PingCompleted; ping.SendAsync(ip, 2000); return(string.Empty); });
}