public void TraceAsync(IPAddress ipAddress, TracerouteOptions traceOptions, CancellationToken cancellationToken)
{
Task.Run(() =>
{
var buffer = new byte[traceOptions.Buffer];
for (var i = 1; i < traceOptions.MaximumHops + 1; i++)
{
var tasks = new List <Task <Tuple <PingReply, long> > >();
for (var y = 0; y < 3; y++)
{
var i1 = i;
tasks.Add(Task.Run(() =>
{
var stopwatch = new Stopwatch();
PingReply pingReply;
using (var ping = new System.Net.NetworkInformation.Ping())
{
stopwatch.Start();
pingReply = ping.Send(ipAddress, traceOptions.Timeout, buffer, new System.Net.NetworkInformation.PingOptions {
Ttl = i1, DontFragment = traceOptions.DontFragement
});
stopwatch.Stop();
}
return(Tuple.Create(pingReply, stopwatch.ElapsedMilliseconds));
}, cancellationToken));
}
// ReSharper disable once CoVariantArrayConversion, no write operation
Task.WaitAll(tasks.ToArray());
var ipAddressHop = tasks.FirstOrDefault(x => x.Result.Item1 != null)?.Result.Item1.Address;
var hostname = string.Empty;
try
{
if (traceOptions.ResolveHostname && ipAddressHop != null)
{
hostname = Dns.GetHostEntry(ipAddressHop).HostName;
}
}
catch (SocketException) { } // Couldn't resolve hostname
OnHopReceived(new TracerouteHopReceivedArgs(i, tasks[0].Result.Item2, tasks[1].Result.Item2, tasks[2].Result.Item2, ipAddressHop, hostname, tasks[0].Result.Item1.Status, tasks[1].Result.Item1.Status, tasks[2].Result.Item1.Status));
// Check if finished
if (ipAddressHop != null && ipAddress.ToString() == ipAddressHop.ToString())
{
OnTraceComplete();
return;
}
// Check for cancel
if (cancellationToken.IsCancellationRequested)
{
OnUserHasCanceled();
return;
}
}
// Max hops reached...
OnMaximumHopsReached(new MaximumHopsReachedArgs(traceOptions.MaximumHops));
}, cancellationToken);
}
public void TraceAsync(IPAddress ipAddress, TracerouteOptions traceOptions, CancellationToken cancellationToken)
{
Task.Run(() =>
{
byte[] buffer = new byte[traceOptions.Buffer];
int maximumHops = traceOptions.MaximumHops + 1;
int hop = 1;
do
{
List <Task <Tuple <PingReply, long> > > tasks = new List <Task <Tuple <PingReply, long> > >();
for (int i = 0; i < 3; i++)
{
tasks.Add(Task.Run(() =>
{
Stopwatch stopwatch = new Stopwatch();
PingReply pingReply;
using (System.Net.NetworkInformation.Ping ping = new System.Net.NetworkInformation.Ping())
{
stopwatch.Start();
pingReply = ping.Send(ipAddress, traceOptions.Timeout, buffer, new System.Net.NetworkInformation.PingOptions()
{
Ttl = hop, DontFragment = traceOptions.DontFragement
});
stopwatch.Stop();
}
return(Tuple.Create(pingReply, stopwatch.ElapsedMilliseconds));
}));
}
Task.WaitAll(tasks.ToArray());
IPAddress ipAddressHop = tasks.FirstOrDefault(x => x.Result.Item1 != null).Result.Item1.Address;
string hostname = string.Empty;
try
{
if (ipAddressHop != null)
{
hostname = Dns.GetHostEntry(ipAddressHop).HostName;
}
}
catch (SocketException) { } // Couldn't resolve hostname
OnHopReceived(new TracerouteHopReceivedArgs(hop, tasks[0].Result.Item2, tasks[1].Result.Item2, tasks[2].Result.Item2, ipAddressHop, hostname, tasks[0].Result.Item1.Status, tasks[1].Result.Item1.Status, tasks[2].Result.Item1.Status));
if (ipAddressHop != null)
{
if (ipAddressHop.ToString() == ipAddress.ToString())
{
OnTraceComplete();
return;
}
}
hop++;
} while (hop < maximumHops && !cancellationToken.IsCancellationRequested);
if (cancellationToken.IsCancellationRequested)
{
OnUserHasCanceled();
}
else if (hop == maximumHops)
{
OnMaximumHopsReached(new MaximumHopsReachedArgs(traceOptions.MaximumHops));
}
}, cancellationToken);
}
