private static void ReceiveCallback(IAsyncResult ar)
{
try
{
MessageState clientState = (MessageState)ar.AsyncState;
Socket clientSocket = clientState.socket;
int count = clientSocket.EndReceive(ar);
// 关闭客户端
if (count == 0)
{
clientSocket.Close();
clients.Remove(clientSocket);
Console.WriteLine("Socket Close");
return;
}
string recvStr = System.Text.Encoding.Default.GetString(clientState.readBuff, 0, count);
string sendStr = string.Format("{0} say: {1}", clientSocket.RemoteEndPoint.ToString(), recvStr);
byte[] sendBytes = System.Text.Encoding.Default.GetBytes(sendStr);
// 将消息分发给每个客户端
foreach (MessageState s in clients.Values)
{
s.socket.Send(sendBytes);
}
clientSocket.BeginReceive(clientState.readBuff, 0, 1024, 0, ReceiveCallback, clientState);
}
catch (SocketException e)
{
Console.WriteLine("Socket Receive fail" + e.ToString());
}
}
private static void AcceptCallback(IAsyncResult ar)
{
try
{
Console.WriteLine("[服务器] Accept");
Socket listenSocket = (Socket)ar.AsyncState;
Socket clientSocket = listenSocket.EndAccept(ar);
// clients列表
MessageState clientState = new MessageState();
clientState.socket = clientSocket;
clients.Add(clientSocket, clientState);
// 接收数据BeginReceive
clientSocket.BeginReceive(clientState.readBuff, 0, 1024, 0, ReceiveCallback, clientState);
// 继续Accept
listenSocket.BeginAccept(AcceptCallback, listenSocket);
}
catch (Exception e)
{
Console.WriteLine("Socket Accept fail" + e.ToString());
}
}