public void FinalReceiveCallback(IAsyncResult iar)
{
UdpState udpState = iar.AsyncState as UdpState;
if (iar.IsCompleted)
{
Console.WriteLine("FinalReceiveCallback:" + Thread.CurrentThread.ManagedThreadId);
Byte[] receiveBytes = udpState.udpClient.EndReceive(iar, ref udpReceiveState.ipEndPoint);
FinalBackString = Encoding.UTF8.GetString(receiveBytes);
receiveDone.Set();
}
}
// 接收回调函数
public void ReceiveCallback(IAsyncResult iar)
{
UdpState udpState = iar.AsyncState as UdpState;
if (iar.IsCompleted)
{
Console.WriteLine("ReceiveCallback:" + Thread.CurrentThread.ManagedThreadId);
Byte[] receiveBytes = udpState.udpClient.EndReceive(iar, ref udpReceiveState.ipEndPoint);
string receiveString = Encoding.UTF8.GetString(receiveBytes);
if (receiveString == "Y")
{
udpReceive.BeginReceive(new AsyncCallback(FinalReceiveCallback), udpReceiveState);
}
else
{
FinalBackString = "N";
receiveDone.Set();
}
}
}
public AsyncUdpClient()
{
var name = Dns.GetHostName();
var ssfs = Dns.GetHostAddresses(name);
// 本机节点
localEP = new IPEndPoint(Dns.GetHostAddresses(Dns.GetHostName())[1], listenPort);
// 远程节点
remoteEP = new IPEndPoint(Dns.GetHostAddresses(Dns.GetHostName())[1], remotePort);
// 实例化
udpReceive = new UdpClient(localEP);
udpSend = new UdpClient(listenPort);
// 分别实例化udpSendState、udpReceiveState
//udpSendState = new UdpState();
//udpSendState.ipEndPoint = remoteEP;
//udpSendState.udpClient = udpSend;
udpReceiveState = new UdpState();
udpReceiveState.ipEndPoint = remoteEP;
udpReceiveState.udpClient = udpReceive;
}
