/// <summary>
/// 收到connect
/// </summary>
/// <param name="ar"></param>
private static void on_local_connected(IAsyncResult ar)
{
object[] ar_arr = ar.AsyncState as object[];
Socket sock_svr = ar_arr[0] as Socket;
work_item work = (work_item)ar_arr[1];
++_state_dic[work._id]._connect_cnt;
Socket sock_cli = sock_svr.EndAccept(ar);
sock_svr.BeginAccept(on_local_connected, ar.AsyncState);
Socket sock_cli_remote = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
try
{
sock_cli_remote.Connect(work._ip_out_host, work._ip_out_port);
}
catch (Exception)
{
try
{
sock_cli.Shutdown(SocketShutdown.Both);
sock_cli_remote.Shutdown(SocketShutdown.Both);
sock_cli.Close();
sock_cli_remote.Close();
}
catch (Exception)
{ }
--_state_dic[work._id]._connect_cnt;
return;
}
//线程: 接受本地数据 转发至远程
Thread t_send = new Thread(recv_and_send_caller)
{
IsBackground = true
};
//线程: 接受远程数据 转发至本地connect 端
Thread t_recv = new Thread(recv_and_send_caller)
{
IsBackground = true
};
t_send.Start(new object[] { sock_cli, sock_cli_remote, work._id, true });
t_recv.Start(new object[] { sock_cli_remote, sock_cli, work._id, false });
//线程同步
t_send.Join();
t_recv.Join();
//已断开, 连接数-1
--_state_dic[work._id]._connect_cnt;
}
/// <summary>
/// 启动映射器
/// </summary>
/// <param name="work"></param>
private static void map_start(work_item work)
{
Socket sock_svr = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
bool start_error = false;
try
{
sock_svr.Bind(work._ip_in); //绑定本机ip
sock_svr.Listen(10);
sock_svr.BeginAccept(on_local_connected, new object[] { sock_svr, work }); //接受connect
}
catch (Exception)
{
start_error = true;
}
finally
{
_state_dic.Add(work._id, new state(work._ip_in.ToString(), work._ip_out_host + ":" + work._ip_out_port, !start_error, 0, 0, 0));
}
}