public void SendAsync(IPAddress ipAddress, PingOptions pingOptions, CancellationToken cancellationToken)
{
Task.Run(() =>
{
var hostname = pingOptions.Hostname;
// Try to resolve PTR
if (string.IsNullOrEmpty(hostname))
{
try
{
Task.Run(() =>
{
hostname = Dns.GetHostEntryAsync(ipAddress).Result.HostName;
}, cancellationToken);
}
catch (SocketException) { }
}
var pingTotal = 0;
var errorCount = 0;
var options = new System.Net.NetworkInformation.PingOptions
{
Ttl = pingOptions.TTL,
DontFragment = pingOptions.DontFragment
};
using (var ping = new System.Net.NetworkInformation.Ping())
{
do
{
try
{
// Get timestamp
var timestamp = DateTime.Now;
// Send ping
var pingReply = ping.Send(ipAddress, pingOptions.Timeout, pingOptions.Buffer, options);
// Reset the error count (if no exception was thrown)
errorCount = 0;
if (pingReply == null || pingReply.Status != IPStatus.Success)
{
if (pingReply != null && pingReply.Address == null)
{
OnPingReceived(new PingReceivedArgs(timestamp, ipAddress, hostname, pingReply.Status));
}
else if (pingReply != null)
{
OnPingReceived(new PingReceivedArgs(timestamp, pingReply.Address, hostname, pingReply.Status));
}
}
else
{
if (ipAddress.AddressFamily == AddressFamily.InterNetwork)
{
OnPingReceived(new PingReceivedArgs(timestamp, pingReply.Address, hostname,
pingReply.Buffer.Length, pingReply.RoundtripTime, pingReply.Options.Ttl, pingReply.Status));
}
else
{
OnPingReceived(new PingReceivedArgs(timestamp, pingReply.Address, hostname,
pingReply.Buffer.Length, pingReply.RoundtripTime, pingReply.Status));
}
}
}
catch (PingException ex)
{
errorCount++;
if (errorCount == pingOptions.ExceptionCancelCount)
{
OnPingException(new PingExceptionArgs(ex.Message, ex.InnerException));
break;
}
}
pingTotal++;
// If ping is canceled... dont wait for example 5 seconds
for (var i = 0; i < pingOptions.WaitTime; i += 100)
{
Thread.Sleep(100);
if (cancellationToken.IsCancellationRequested)
{
break;
}
}
} while ((pingOptions.Attempts == 0 || pingTotal < pingOptions.Attempts) && !cancellationToken.IsCancellationRequested);
}
if (cancellationToken.IsCancellationRequested)
{
OnUserHasCanceled();
}
else
{
OnPingCompleted();
}
}, cancellationToken);
}
public void SendAsync(IPAddress ipAddress, PingOptions pingOptions, CancellationToken cancellationToken)
{
Task.Run(() =>
{
int pingTotal = 0;
int errorCount = 0;
System.Net.NetworkInformation.PingOptions options = new System.Net.NetworkInformation.PingOptions
{
Ttl = pingOptions.TTL,
DontFragment = pingOptions.DontFragment
};
using (System.Net.NetworkInformation.Ping ping = new System.Net.NetworkInformation.Ping())
{
do
{
PingReply pingReply;
try
{
// Get timestamp
DateTime timestamp = DateTime.Now;
// Send ping
pingReply = ping.Send(ipAddress, pingOptions.Timeout, pingOptions.Buffer, options);
// Reset the error count (if no exception was thrown)
errorCount = 0;
if (pingReply.Status == IPStatus.Success)
{
if (ipAddress.AddressFamily == AddressFamily.InterNetwork)
{
OnPingReceived(new PingReceivedArgs(timestamp, pingReply.Address, pingReply.Buffer.Count(), pingReply.RoundtripTime, pingReply.Options.Ttl, pingReply.Status));
}
else
{
OnPingReceived(new PingReceivedArgs(timestamp, pingReply.Address, pingReply.Buffer.Count(), pingReply.RoundtripTime, pingReply.Status));
}
}
else
{
if (pingReply.Address == null)
{
OnPingReceived(new PingReceivedArgs(timestamp, ipAddress, pingReply.Status));
}
else
{
OnPingReceived(new PingReceivedArgs(timestamp, pingReply.Address, pingReply.Status));
}
}
}
catch (PingException ex)
{
errorCount++;
if (errorCount == pingOptions.ExceptionCancelCount)
{
OnPingException(new PingExceptionArgs(ex.Message, ex.InnerException));
break;
}
}
pingTotal++;
// If ping is canceled... dont wait for example 5 seconds
for (int i = 0; i < pingOptions.WaitTime; i += 100)
{
Thread.Sleep(100);
if (cancellationToken.IsCancellationRequested)
{
break;
}
}
} while ((pingOptions.Attempts == 0 || pingTotal < pingOptions.Attempts) && !cancellationToken.IsCancellationRequested);
}
if (cancellationToken.IsCancellationRequested)
{
OnUserHasCanceled();
}
else
{
OnPingCompleted();
}
});
}
