c# socket发送错误

本文关键字:错误 socket | 更新日期: 2023-09-27 18:03:30

我有这样的代码

public static void Send(Socket socket, byte[] buffer, int offset, int size, int timeout)
{
    int startTickCount = Environment.TickCount;
    int sent = 0;  // how many bytes is already sent
    do
    {
        if (Environment.TickCount > startTickCount + timeout)
            throw new Exception("Timeout.");
        try
        {
            sent += socket.Send(buffer, offset + sent, size - sent, SocketFlags.None);
        }
        catch (SocketException ex)
        {
            if (ex.SocketErrorCode == SocketError.WouldBlock ||
                ex.SocketErrorCode == SocketError.IOPending ||
                ex.SocketErrorCode == SocketError.NoBufferSpaceAvailable)
            {
                // socket buffer is probably full, wait and try again
                Thread.Sleep(30);
            }
            else
                throw ex;  // any serious error occurr
        }
    } while (sent < size);
}

在表单打开和关闭时发送它:

打开时

:

Launcher.Send(sock, Encoding.UTF8.GetBytes("Hello world"), 0, "Hello World".Length, 1000);

它工作得很好,但是在窗体关闭时:

try
{
     Launcher.Send(s, Encoding.UTF8.GetBytes("Bye world"), 0, "Bye world".Length, 1000);
}
catch
{
     Message.Error("Error");
}

我总是得到错误信息。怎么了?提前感谢

编辑:

我删除了try{}catch{}。现在我得到:不能访问一个处置的对象。对象名称:' system.net.socket.socket '。我不知道问题在哪里,因为如果我在app load中删除socket send,那么关闭工作

c# socket发送错误

插座。Close结束时调用套接字上的. dispose。

您在上面的评论中提到,您正在运行以下代码:

foreach (Socket s in samp) 
{ 
    Launcher.Send(s, Encoding.UTF8.GetBytes(GetMyIP()), 0, GetMyIP().Length, 1000); 
    s.Close(); 
}

因此,当您关闭表单时,套接字已被处理。