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Copy pathIPAddressElapsed.cs
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68 lines (63 loc) · 2.16 KB
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using System;
using System.Diagnostics;
using System.Net;
using System.Net.Sockets;
using System.Threading;
using System.Threading.Tasks;
namespace FastGithub.DomainResolve
{
/// <summary>
/// IP延时
/// </summary>
[DebuggerDisplay("Adddress={Adddress} Elapsed={Elapsed}")]
struct IPAddressElapsed
{
private static readonly TimeSpan maxConnectTimeout = TimeSpan.FromSeconds(5d);
/// <summary>
/// 获取IP地址
/// </summary>
public IPAddress Adddress { get; }
/// <summary>
/// 获取延时
/// </summary>
public TimeSpan Elapsed { get; }
/// <summary>
/// IP延时
/// </summary>
/// <param name="adddress"></param>
/// <param name="elapsed"></param>
public IPAddressElapsed(IPAddress adddress, TimeSpan elapsed)
{
this.Adddress = adddress;
this.Elapsed = elapsed;
}
/// <summary>
/// 获取连接耗时
/// </summary>
/// <param name="address"></param>
/// <param name="port"></param>
/// <param name="cancellationToken"></param>
/// <returns></returns>
public static async Task<IPAddressElapsed> ParseAsync(IPAddress address, int port, CancellationToken cancellationToken)
{
var stopWatch = Stopwatch.StartNew();
try
{
using var timeoutTokenSource = new CancellationTokenSource(maxConnectTimeout);
using var linkedTokenSource = CancellationTokenSource.CreateLinkedTokenSource(cancellationToken, timeoutTokenSource.Token);
using var socket = new Socket(SocketType.Stream, ProtocolType.Tcp);
await socket.ConnectAsync(address, port, linkedTokenSource.Token);
return new IPAddressElapsed(address, stopWatch.Elapsed);
}
catch (Exception)
{
cancellationToken.ThrowIfCancellationRequested();
return new IPAddressElapsed(address, TimeSpan.MaxValue);
}
finally
{
stopWatch.Stop();
}
}
}
}