fixupj

lib/broker.ex

@@ -1,33 +1,21 @@
 defmodule Broker do
   use GenServer
 
-  def init({protocol, port, to_host, to_port}) do
+  def start_link({:tcp, port, to_host, to_port}) do
+    GenServer.start_link(__MODULE__, {:tcp, port, to_host, to_port})
+  end
+
+  @impl true
+  def init({:tcp, port, to_host, to_port}) do
     {:ok, listen_socket} =
       :gen_tcp.listen(port, [
         :binary,
         reuseaddr: true,
-        active: false,
+        active: true,
         backlog: 100
       ])
 
-    {:ok,
-     %{
-       protocol: protocol,
-       port: port,
-       to_host: to_host,
-       to_port: to_port,
-       listen_socket: listen_socket
-     }}
-  end
-
-  def accept_loop(listen_socket) do
-    case :gen_tcp.accept(listen_socket) do
-      {:ok, socket} ->
-        spawn(__MODULE__, :handle_client, [socket])
-        accept_loop(listen_socket)
-
-      {:error, reason} ->
-        IO.puts("接受連接失敗: #{reason}")
-    end
+    TcpWatcher.start_link({to_host, to_port, listen_socket})
+    {:ok, {:tcp, port, to_host, to_port, listen_socket}}
   end
 end