Are timeouts paused when my computer sleeps?

Questions / Help
,
1

I’m writing a genserver for a multiplayer game. I want the genserver to shutdown after a period of inactivity so I’m passing a timeout parameter in the call back responses e.g.

  def handle_call(:get_game, _from, game) do
    {:reply, summarise(game), game, @timeout}
  end

...

  def handle_info(:timeout, game) do
    {:stop, {:shutdown, :timeout}, game}
  end

Say the timeout is 10 mins. I start a genserver then put my computer to sleep and come back 20 minutes later. When I wake my computer I find the genserver is still running.

Is this expected behaviour or does the sleeping action break my timeout?

2

I’m not sure but maybe it’s related with the runtime. When your pc goes to sleep the runtime is paused too.
I would check if the runtime actually increases when put to sleep.

{runtime, _} = :erlang.statistics(:runtime)
3

Like checking if the light goes off in a refrigerator. We will never know :wink: j/k

Really helpful that you provided the code snippet. Thanks.