fixup

lib/broker.ex

@@ -0,0 +1,26 @@
+defmodule Broker do
+  use GenServer
+
+  def init(opts) do
+    {:ok, listen_socket} =
+      :gen_tcp.listen(opts[:port], [
+        :binary,
+        reuseaddr: true,
+        active: false,
+        backlog: 100
+      ])
+
+    {:ok, opts}
+  end
+
+  defp 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
+  end
+end