private void udpGetMACIPAndSendCheck()
{
UdpClient udpServer = new UdpClient(50001);
udpServer.Client.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReuseAddress, true);
udpServer.Client.ReceiveTimeout = 1000;
while (true)
{
IPEndPoint RemoteIpEndPoint = new IPEndPoint(IPAddress.Any, 0);
Byte[] receiveBytes = { };
if (running == false)
{
break;
}
// 这里使用超时退出一次，主要是为了解决按下Stop的时候需要退出，需要杀死线程导致的。
try {
receiveBytes = udpServer.Receive(ref RemoteIpEndPoint);
}
catch
{
continue;
}
Console.WriteLine("udp received.");
string mac = Encoding.ASCII.GetString(receiveBytes);
string ip = RemoteIpEndPoint.Address.ToString();
MACIP macip = new MACIP(mac, ip);
// 检查IP是否已经存在ArrayList中，删除，并重新添加，就没有必要添加到其中
lock (threadLock)
{
int count = 0;
for (; count < macIpAL.Count; count++)
{
if (((MACIP)macIpAL[count]).IP == ip)
{
break;
}
}
if (macIpAL.Count > 0 && count < macIpAL.Count)
{
((MACIP)(macIpAL[count])).LeftTime = MACIP.LEFT_TIME;
}
else
{
macIpAL.Add(macip);
}
}
// 让线程去更新UI界面
refreshListViewFlag = true;
Console.WriteLine("lv refresh. macIpAL count: {0}", macIpAL.Count);
}
}
/// <summary>
/// 1. 获取IP；
/// 2. 获取IP对应的MACIP对象，如果不在范围，直接返回，线程结束；
/// 3. 获取客户端的数据，并更新MACIP对应的心跳时间；
/// 4. 连接异常或者断开之后关闭socket；
/// 5. 删除Arraylist中的对象。
/// </summary>
public void RunThread()
{
string ip = ((IPEndPoint)(clientSocket.RemoteEndPoint)).Address.ToString();
Console.WriteLine("RecvThread ip : {0}", ip);
int index = 0;
for (; index < macIpAL.Count; index++)
{
if (((MACIP)macIpAL[index]).IP == ip)
{
macip = ((MACIP)macIpAL[index]);
macip.ClientSocket = this.clientSocket;
Console.WriteLine("RecvThread ClientSocket value {0}", this.clientSocket == null);
Console.WriteLine("RecvThread add ClientSocket {0}", macip.ClientSocket);
break;
}
}
if (index >= macIpAL.Count)
{
// clientSocket.Shutdown(SocketShutdown.Both);
clientSocket.Close();
return;
}
while (LocalDetect.localDetect.running)
{
try
{
//通过clientSocket接收数据
int receiveNumber = clientSocket.Receive(result);
if (receiveNumber == 0)
{
break;
}
macip.LeftTime = 4;
Console.WriteLine("接收客户端{0}消息{1}", clientSocket.RemoteEndPoint.ToString(), Encoding.ASCII.GetString(result, 0, receiveNumber));
}
catch { break; }
}
try {
Console.WriteLine("recvThread close socket.");
macip.ClientSocket.Shutdown(SocketShutdown.Both);
macip.ClientSocket.Close();
}
catch { }
// 确认存在之后再去删除
if (macIpAL.Contains(macip))
{
macIpAL.Remove(macip);
}
LocalDetect.localDetect.refreshListViewFlag = true;
}