Stale/Deadlock Process

Questions & Help Questions
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3

You are right! A simpler way (for me) is informing the parent that the child is started/ready:

def sample do
  lab_pid = self()

  spawn_link(fn ->
    parent_pid = self()

    spawn_link(fn ->
      Process.flag(:trap_exit, true)
      send(parent_pid, :started)

      receive do
        {:EXIT, _pid, :normal} ->
          send(lab_pid, :done)
      end
    end)

    # :timer.sleep(100)
    receive do
      _ -> 0
    end
  end)

  receive do
    msg -> msg
  end
end