/// <summary>
/// Update form control with new data.
/// </summary>
private void UpdateForm()
{
TraceRouteHopData data = this.hopList[this.hopList.Count - 1];
this.dataGridView1.Rows.Add(new object[] { data.Count, data.Address, data.RoundTripTime, data.Status, data.HostName, data.Time });
if (this.dataGridView1.Rows.Count > 1)
{
this.dataGridView1.FirstDisplayedScrollingRowIndex = this.dataGridView1.Rows.Count - 1;
}
this.UpdateGraph();
}
public RouteHopFoundEventArgs(TraceRouteHopData hop, Boolean isLast)
{
this.Hop = hop;
this.IsLastNode = isLast;
}
public RouteHopFoundEventArgs(TraceRouteHopData hop, Boolean isLast)
{
this.Hop = hop;
this.IsLastNode = isLast;
}
private void ProcessHop(IPAddress address, IPStatus status, string time)
{
Int64 roundTripTime = 0;
if (status == IPStatus.Success || status == IPStatus.TtlExpired)
{
System.Net.NetworkInformation.Ping ping2 = new System.Net.NetworkInformation.Ping();
try
{
// Do another ping to get the roundtrip time per address.
PingReply reply = ping2.Send(address, this.HopTimeOut);
roundTripTime = reply.RoundtripTime;
status = reply.Status;
}
catch (Exception ex)
{
Log.Info(String.Empty, ex);
}
finally
{
ping2.Dispose();
ping2 = null;
}
}
if (this.cancel)
{
return;
}
TraceRouteHopData hop = new TraceRouteHopData(this.counter++, address, roundTripTime, status, time);
try
{
if (status == IPStatus.Success && this.ResolveNames)
{
IPHostEntry entry = Dns.GetHostEntry(address);
hop.HostName = entry.HostName;
}
}
catch (SocketException)
{
// No such host is known error.
hop.HostName = String.Empty;
}
lock (this.hopList)
this.hopList.Add(hop);
if (this.RouteHopFound != null)
{
this.RouteHopFound(this, new RouteHopFoundEventArgs(hop, this.Idle));
}
this.Idle = address.Equals(this.destinationIP);
lock (this.hopList)
{
if (!this.Idle && this.hopList.Count >= this.HopLimit - 1)
{
this.ProcessHop(this.destinationIP, IPStatus.Success, DateTime.Now.ToLongTimeString());
}
}
if (this.Idle)
{
this.OnCompleted();
this.Dispose();
}
}
private void ProcessHop(IPAddress address, IPStatus status, string time)
{
Int64 roundTripTime = 0;
if (status == IPStatus.Success || status == IPStatus.TtlExpired)
{
System.Net.NetworkInformation.Ping ping2 = new System.Net.NetworkInformation.Ping();
try
{
// Do another ping to get the roundtrip time per address.
PingReply reply = ping2.Send(address, this.HopTimeOut);
roundTripTime = reply.RoundtripTime;
status = reply.Status;
}
catch (Exception ex)
{
Log.Info(String.Empty, ex);
}
finally
{
ping2.Dispose();
ping2 = null;
}
}
if (this.cancel)
return;
TraceRouteHopData hop = new TraceRouteHopData(this.counter++, address, roundTripTime, status, time);
try
{
if (status == IPStatus.Success && this.ResolveNames)
{
IPHostEntry entry = Dns.GetHostEntry(address);
hop.HostName = entry.HostName;
}
}
catch (SocketException)
{
// No such host is known error.
hop.HostName = String.Empty;
}
lock (this.hopList)
this.hopList.Add(hop);
if (this.RouteHopFound != null)
this.RouteHopFound(this, new RouteHopFoundEventArgs(hop, this.Idle));
this.Idle = address.Equals(this.destinationIP);
lock (this.hopList)
{
if (!this.Idle && this.hopList.Count >= this.HopLimit - 1)
this.ProcessHop(this.destinationIP, IPStatus.Success, DateTime.Now.ToLongTimeString());
}
if (this.Idle)
{
this.OnCompleted();
this.Dispose();
}
}
