/// <summary>
/// 接收到信息的回调函数
/// </summary>
/// <param name="iar"></param>
private void EndReceiveFromCallback(IAsyncResult iar)
{
int byteRead = 0;
try
{
//完成接收
byteRead = state.WorkSocket.EndReceiveFrom(iar, ref state.RemoteEP);
}
catch
{
}
if (byteRead > 0)
{
state.IpEndPoint = (IPEndPoint)state.RemoteEP;
byte[] haveDate = ReceiveDateOne.DateOneManage(state, byteRead); //接收完成之后对数组进行重置
BeginReceiveFrom();
int havePort = UdpPortSetGet.GetPort(ref haveDate);
if (havePort != 0)
{
state.IpEndPoint.Port = havePort;
}
StateCode statecode = ReceiveDateDistribution.Distribution(haveDate);
codeManage(state, statecode);
}
else
{
BeginReceiveFrom();
}
}
/// <summary>
/// 最基础的Udp异步发送
/// </summary>
/// <param name="stateBase">StateBase</param>
/// <param name="bytes">数据</param>
override internal void Send(TransmitData stateBase, byte[] bytes)
{
if (stateBase == null)
{
return;
}
EndPoint remoteEndPoint = (EndPoint)stateBase.IpEndPoint;
byte[] sendDate = UdpPortSetGet.SetPort(Port, bytes);
try
{
state.WorkSocket.BeginSendTo(sendDate, 0, sendDate.Length, 0, remoteEndPoint, new AsyncCallback(SendCallback), state.WorkSocket);
}
catch { }
#region 异步发送的另一种方法
//try
//{
// EndPoint remoteEndPoint = (EndPoint)stateBase.IpEndPoint;
// state.SendSocketArgs.SetBuffer(bytes, 0, bytes.Length);
// state.SendSocketArgs.RemoteEndPoint = remoteEndPoint;
// bool bb= state.WorkSocket.SendToAsync(state.SendSocketArgs);
// if (bb == false)
// {
// state.SendSocketArgs = new SocketAsyncEventArgs();
// Send(stateBase, bytes);
// }
//}
//catch {}
#endregion
}