Uses the System.Net.NetworkInformation.Ping class to send an ICMP ping to a specified host asynchronously.
using System.Net.NetworkInformation;
using System;
namespace Gildor.SimpleHostMonitor.Desktop.Utilities
{
/// <summary>
/// Uses the <see cref="System.Net.NetworkInformation.Ping"/> class
/// to send an ICMP ping to a specified host asynchronously.
/// </summary>
class Pinger
{
/// <summary>
/// The maximum timeout in milliseconds of the ping operation.
/// </summary>
public static readonly int MaxTimeOut = 4000;
/// <summary>
/// Pings the specified ip.
/// </summary>
/// <param name="ip">The ip.</param>
/// <param name="callback">The callback.</param>
public static void Ping(string ip, PingCompletedEventHandler callback)
{
Ping(ip, callback, ip, 3000);
}
/// <summary>
/// Pings the specified ip.
/// </summary>
/// <param name="ip">The ip.</param>
/// <param name="callback">The callback.</param>
/// <param name="userToken">The user token.</param>
/// <param name="timeout">The timeout (in milliseconds). </param>
public static void Ping(string ip, PingCompletedEventHandler callback, object userToken, int timeout)
{
if (timeout > MaxTimeOut)
{
throw new ArgumentOutOfRangeException("timeout");
}
//Ping object is disposable. It should be disposed when ping is completed.
Ping ping = new Ping();
ping.PingCompleted += callback;
ping.SendAsync(ip, timeout, userToken);
}
}
}
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