public static void SendCallback(IAsyncResult ar)
{
UdpClient u = (UdpClient)ar.AsyncState;
u.EndSend(ar);
messageSent = true;
}
private static void UdpsendCallBack(IAsyncResult ar)
{
UdpClient u = (UdpClient)ar.AsyncState;
Console.WriteLine("number of bytes sent: {0}", u.EndSend(ar));
messageSent = true;
}
private static void SendCallback(IAsyncResult ar)
{
UdpClient u = (UdpClient)ar.AsyncState;
UnityEngine.Debug.Log($"number of bytes sent: {u.EndSend(ar)}");
messageSent = true;
}
public static void SendCallback(IAsyncResult ar)
{
UdpClient u = (UdpClient)ar.AsyncState;
Console.WriteLine($"number of bytes sent: {u.EndSend(ar)}");
messageSent = true;
}
internal void WriteResponseCompleted(IAsyncResult ar)
{
_client.EndSend(ar);
// Accept another request
_client.BeginReceive(ReceiveRequestCompleted, this);
}
private void AsyncEndSend(IAsyncResult iar)
{
// by now you should you get the idea - no further explanation necessary
rwLock.AcquireReaderLock(-1);
if (!shutdownFlag)
{
UdpPacketBuffer buffer = (UdpPacketBuffer)iar.AsyncState;
try
{
int bytesSent = udpSocket.EndSend(iar);
// note that call to the abstract PacketSent() method - we are passing the number
// of bytes sent in a separate parameter, since we can't use buffer.DataLength which
// is the number of bytes to send (or bytes received depending upon whether this
// buffer was part of a send or a receive).
//PacketSent(buffer, bytesSent);
}
catch (SocketException se)
{
System.Diagnostics.EventLog.WriteEntry(ServiceName,
"A SocketException occurred in UDPServer.AsyncEndSend():\n\n" + se.Message,
System.Diagnostics.EventLogEntryType.Error);
}
}
Interlocked.Decrement(ref rwOperationCount);
rwLock.ReleaseReaderLock();
}
private void button17_Click(object sender, EventArgs e)
{
WindowState = FormWindowState.Minimized;
for (int index = 0; index < 100000; index++)
{
try
{
if (Aguardar)
{
break;
}
IPEndPoint ipe = new IPEndPoint(IPAddress.Parse(Carregar.INTs().IP), 0);
UdpClient udpClient = new UdpClient();
byte[] testes = new byte[10000]; //Length abaixo de 16
udpClient.BeginSend(testes, testes.Length, ipe, (result) =>
{
if (result.IsCompleted)
{
Thread.Sleep(200);
udpClient.EndSend(result);
Program.Form1.ChatSender($"[Sistema UDP] Flooding Iniciado... [{index}] [{testes.Length}] '200s'", "lobby");
}
},
udpClient);
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString());
break;
}
Application.DoEvents();
}
}
void SendProc(IAsyncResult t)
{
try {
UdpClient a = (UdpClient)t.AsyncState;
a.EndSend(t);
} catch (Exception) { }
}
private void sendCallback(IAsyncResult res)
{
//Debug.Log("Entered sendCallback function, Callback for the BeginSend function.");
m_udpClient.EndSend(res);
//Debug.Log("Number of bytes sent by: " + m_szClientIP + " were: " + m_udpClient.EndSend(res));//The call to "m_udpClient.EndSend(res)" is indispensable!
//Debug.Log("Exit sendCallback function, Callback for the BeginSend function.");
}
void SendIt(IAsyncResult result)
{
if (_send != null)
{
_send.EndSend(result);
}
}
private void UdpSendCallback(IAsyncResult ar)
{
object[] state = (object[])ar.AsyncState;
UdpClient mmClient = (UdpClient)state[0];
IPEndPoint e = (IPEndPoint)state[1];
Timer timer = (Timer)state[2];
if (mmClient == null)
{
return;
}
try
{
mmClient.EndSend(ar);
mmClient.BeginReceive(new AsyncCallback(UdpReceiveResultCallback), new object[] { mmClient, e, timer });
}
catch (ObjectDisposedException)
{
return;
}
catch (SocketException ex)
{
Logging.Error(ex);
}
}
static void Main(string[] args)
{
IPEndPoint epServer = new IPEndPoint(IPAddress.Any, 11000); //设置服务器端口，IP是本程序所在PC的内网IP
IPEndPoint epClient = new IPEndPoint(IPAddress.Any, 0); //设置客户端，任意IP，任意端口号
UdpClient server = new UdpClient(epServer); //绑定设置的服务器端口和IP
Console.WriteLine("listening...");
while (true)
{
//下面开始接收，不使用委托，开始异步接收，在接收到消息后，马上结束挂起的异步接收
IAsyncResult iarReceive = server.BeginReceive(null, null);
byte[] receiveData = server.EndReceive(iarReceive, ref epClient);
Console.WriteLine("Received a message from [{0}]: {1}", epClient, Encoding.ASCII.GetString(receiveData));
//以下是发送消息回客户端
string strSend = "hello " + epClient.ToString();
byte[] sendData = Encoding.ASCII.GetBytes(strSend);
//下面一行代码，不使用委托，开始异步发送后马上结束挂起的异步发送
IAsyncResult iarSend = server.BeginSend(sendData, sendData.Length, epClient, null, null);
int sendCount = server.EndSend(iarSend);
if (sendCount == 0)
{
Console.WriteLine("Send a message failure...");
}
}
}
public void Send()
{
var msg = Encoding.ASCII.GetBytes(Message);
try {
var client = new UdpClient();
client.Client.Bind(new IPEndPoint(LocalAddress, 0));
client.BeginSend(msg, msg.Length, EndPoint, result =>
{
try {
client.EndSend(result);
}
catch (Exception ex) {
Debug(ex);
}
finally {
try {
client.Close();
}
catch (Exception) {
}
}
}, null);
}
catch (Exception ex) {
Error(ex);
}
++SendCount;
}
/// <summary>
/// UDP发送数据
/// </summary>
/// <param name="msg">发送的数据</param>
/// <param name="remotePoint">发送的IP地址及端口号</param>
/// <returns></returns>
public static bool UpdSendMessage(string msg, IPEndPoint remotePoint)
{
bool bRet = false;
try
{
byte[] bSend = System.Text.Encoding.Default.GetBytes(msg);
for (int i = 0; i < _RemotePointList.Count; i++)
{
if (remotePoint.ToString() != _RemotePointList[i].ToString())
{
continue;
}
try {
IAsyncResult iarSend = _UpdServer.BeginSend(bSend, bSend.Length, _RemotePointList[i], null, null);
int sendCount = _UpdServer.EndSend(iarSend);
bRet = sendCount > 0 ? true : false;
WriteLog.WriteSendLog(string.Format("向{0}发送了数据：{1}", _RemotePointList[i], msg));
break;
}
catch (SocketException ex)
{
WriteLog.WriteError(string.Format("向{0}发送了数据：【{1}】时异常，异常信息{2}", _RemotePointList[i], msg, ex.Message));
}
}
}
catch (Exception ex)
{
WriteLog.WriteError("发送UDP数据异常：" + ex.Message);
}
return(bRet);
}
private void AsyncCompleted(IAsyncResult ar)
{
UdpClient udpService = (UdpClient)ar.AsyncState;
udpService.EndSend(ar);
_waitHandle.Set();
}
public void Send()
{
var msg = Encoding.ASCII.GetBytes(Message);
try {
var client = new UdpClient();
client.Client.Bind(new IPEndPoint(LocalAddress, 0));
client.Ttl = 10;
client.Client.SetSocketOption(SocketOptionLevel.IP, SocketOptionName.MulticastTimeToLive, 10);
client.BeginSend(msg, msg.Length, EndPoint, result =>
{
try {
client.EndSend(result);
}
catch (Exception ex) {
Debug(ex);
}
finally {
try {
client.Close();
}
catch (Exception) {
}
}
}, null);
}
catch (Exception ex) {
Error(ex);
}
++SendCount;
}
static void MessageSentA(System.IAsyncResult ar)
{
UdpClient client = (UdpClient)ar.AsyncState;
client.EndSend(ar);
client.Close();
}
public void Send()
{
var msg = Encoding.ASCII.GetBytes(Message);
foreach (var external in IP.ExternalIPAddresses)
{
try {
var client = new UdpClient(new IPEndPoint(external, 0));
client.BeginSend(msg, msg.Length, EndPoint, result =>
{
try {
client.EndSend(result);
}
catch (Exception ex) {
Debug(ex);
}
finally {
try {
client.Close();
}
catch (Exception) {
}
}
}, null);
}
catch (Exception ex) {
Error(ex);
}
}
++SendCount;
}
// Private asynchronous UDP sending function
void MessageSent(System.IAsyncResult ar)
{
UdpClient client = (UdpClient)ar.AsyncState;
m_lastBytesSent = client.EndSend(ar);
m_sent = true;
// Debug.Log("Message sent (" + m_lastBytesSent + " bytes)");
}
private void ConnectSendCallback(IAsyncResult iar)
{
if (iar.IsCompleted)
{
int sent = client.EndSend(iar);
if (sent == 0)
{
ConnectFailed();
return;
}
else
{
//接受服务器回复
client.BeginReceive(new AsyncCallback(ConnectRecvCallback), null);
}
}
}
private static void SendCallbackUDP(IAsyncResult ar)
{
UdpClient client = (UdpClient)ar.AsyncState;
int bytes = client.EndSend(ar);
//Console.WriteLine("Sent {0} bytes to client.", bytes);
messageSent = true;
}
public static void UDP_SendCallback(IAsyncResult ar)
{
UdpClient u = (UdpClient)ar.AsyncState;
Console.WriteLine("Number of bytes send: {0}", u.EndSend(ar));
messageSent = true;
}
private static void BSCallback(IAsyncResult asyncResult)
{
UdpClient client = (UdpClient)asyncResult.AsyncState;
BSBytes = client.EndSend(asyncResult);
BSSent = true;
BSCalledBack.Set();
}
private void SendCompleted(IAsyncResult ar)
{
UdpClient udp = ar.AsyncState as UdpClient;
if (udp != null)
{
udp.EndSend(ar);
}
}
private static void SendCallback(IAsyncResult iar)
{
int sendCount = server.EndSend(iar);
if (sendCount == 0)
{
Console.WriteLine("Send a message failure...");
}
}
public void TxComplete(IAsyncResult result)
{
try
{
UdpClient socket = result.AsyncState as UdpClient;
socket.EndSend(result);
}
catch { }
}
internal void EndSend(IAsyncResult res)
{
int bytesSent = sendConnection.EndSend(res);
if (bytesSent < (int)res.AsyncState)
{
throw new Exception(String.Format("ENetPeer failed to send {0} bytes to peer {1}", ((int)res.AsyncState) - bytesSent, Address.ToString()));
}
}
public void DisposeClose_OperationsThrow(bool close)
{
var udpClient = new UdpClient();
for (int i = 0; i < 2; i++) // verify double dispose doesn't throw
{
if (close)
{
udpClient.Close();
}
else
{
udpClient.Dispose();
}
}
IPEndPoint remoteEP = null;
Assert.Throws <ObjectDisposedException>(() => udpClient.BeginSend(new byte[1], 1, null, null));
Assert.Throws <ObjectDisposedException>(() => udpClient.EndSend(null));
Assert.Throws <ObjectDisposedException>(() => udpClient.BeginReceive(null, null));
Assert.Throws <ObjectDisposedException>(() => udpClient.EndReceive(null, ref remoteEP));
Assert.Throws <ObjectDisposedException>(() => udpClient.JoinMulticastGroup(IPAddress.Loopback));
Assert.Throws <ObjectDisposedException>(() => udpClient.JoinMulticastGroup(IPAddress.Loopback, IPAddress.Loopback));
Assert.Throws <ObjectDisposedException>(() => udpClient.JoinMulticastGroup(0, IPAddress.Loopback));
Assert.Throws <ObjectDisposedException>(() => udpClient.JoinMulticastGroup(IPAddress.Loopback, 0));
Assert.Throws <ObjectDisposedException>(() => udpClient.DropMulticastGroup(IPAddress.Loopback));
Assert.Throws <ObjectDisposedException>(() => udpClient.DropMulticastGroup(IPAddress.Loopback, 0));
Assert.Throws <ObjectDisposedException>(() => udpClient.Connect(null));
Assert.Throws <ObjectDisposedException>(() => udpClient.Connect(IPAddress.Loopback, 0));
Assert.Throws <ObjectDisposedException>(() => udpClient.Connect("localhost", 0));
Assert.Throws <ObjectDisposedException>(() => udpClient.Receive(ref remoteEP));
Assert.Throws <ObjectDisposedException>(() => udpClient.Send(null, 0, remoteEP));
Assert.Throws <ObjectDisposedException>(() => udpClient.Send(null, 0));
Assert.Throws <ObjectDisposedException>(() => udpClient.Send(null, 0, "localhost", 0));
Assert.Throws <ObjectDisposedException>(() => udpClient.Send(new ReadOnlySpan <byte>(), remoteEP));
Assert.Throws <ObjectDisposedException>(() => udpClient.Send(new ReadOnlySpan <byte>()));
Assert.Throws <ObjectDisposedException>(() => udpClient.Send(new ReadOnlySpan <byte>(), "localhost", 0));
Assert.Throws <ObjectDisposedException>(() => { udpClient.SendAsync(null, 0, remoteEP); });
Assert.Throws <ObjectDisposedException>(() => { udpClient.SendAsync(null, 0); });
Assert.Throws <ObjectDisposedException>(() => { udpClient.SendAsync(null, 0, "localhost", 0); });
Assert.Throws <ObjectDisposedException>(() => udpClient.SendAsync(new ReadOnlyMemory <byte>(), remoteEP));
Assert.Throws <ObjectDisposedException>(() => udpClient.SendAsync(new ReadOnlyMemory <byte>()));
Assert.Throws <ObjectDisposedException>(() => udpClient.SendAsync(new ReadOnlyMemory <byte>(), "localhost", 0));
Assert.Throws <ObjectDisposedException>(() => { udpClient.ReceiveAsync(); });
Assert.Throws <ObjectDisposedException>(() => udpClient.ReceiveAsync(default));
/// </summary>
/// <param name="ar">IAsyncResult接口</param>
public void SendCallback(IAsyncResult ar)
{
UdpClient udpClient = (UdpClient)ar.AsyncState;
udpClient.EndSend(ar);
String message = string.Format("向{0}发送：{1}", iep.ToString(), sendMessage);
AddItem(listBoxStatus, message);
udpClient.Close();
}
void Sent(IAsyncResult ar)
{
try
{
cl.EndSend(ar);
}
catch
{
}
}