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C# Dns.BeginGetHostEntry方法代码示例

本文整理汇总了C#中System.Net.Dns.BeginGetHostEntry方法的典型用法代码示例。如果您正苦于以下问题:C# Dns.BeginGetHostEntry方法的具体用法?C# Dns.BeginGetHostEntry怎么用?C# Dns.BeginGetHostEntry使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。


在下文中一共展示了Dns.BeginGetHostEntry方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C#代码示例。

示例1: ManualResetEvent

// Signals when the resolve has finished.
public static ManualResetEvent GetHostEntryFinished = 
    new ManualResetEvent(false);

// Define the state object for the callback. 
// Use hostName to correlate calls with the proper result.
public class ResolveState
{
    string hostName;
    IPHostEntry resolvedIPs;

    public ResolveState(string host)
    {
        hostName = host;
    }

    public IPHostEntry IPs
    {
        get { return resolvedIPs; }
        set { resolvedIPs = value; }
    }

    public string host
    {
        get { return hostName; }
        set { hostName = value; }
    }
}

// Record the IPs in the state object for later use.
public static void GetHostEntryCallback(IAsyncResult ar)
{
    ResolveState ioContext = (ResolveState)ar.AsyncState;
    ioContext.IPs = Dns.EndGetHostEntry(ar);
    GetHostEntryFinished.Set();
}

// Determine the Internet Protocol (IP) addresses for 
// this host asynchronously.
public static void DoGetHostEntryAsync(string hostname)
{
    GetHostEntryFinished.Reset();
    ResolveState ioContext= new ResolveState(hostname);

    Dns.BeginGetHostEntry(ioContext.host, 
        new AsyncCallback(GetHostEntryCallback), ioContext);

    // Wait here until the resolve completes (the callback 
    // calls .Set())
    GetHostEntryFinished.WaitOne();

    Console.WriteLine("EndGetHostEntry({0}) returns:", ioContext.host);

    foreach (IPAddress address in ioContext.IPs.AddressList)
    {
        Console.WriteLine($"    {address}");
    }
}
开发者ID:.NET开发者,项目名称:System.Net,代码行数:58,代码来源:Dns.BeginGetHostEntry


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