A utility module that helps in creating GenServer processes that are registered in locker. This module implements functions for keeping up the registration. It accepts two parameters, namely :lease_length and :lease_threshold, which defaults to 5 seconds and one second. Based on these options, the process registration is updated in the progess registry.

Example

You can create a standard GenServer process that is registered under locker like this:

defmodule MyServer do
  use Locker.Server, lease_length: 10000

  def init(_) do
    {:ok, %{}}
  end
end

Note that Locker.Server provides start/2 and start_link/2 functions that you don’t need to implement yourself. If the opts contains key name, this name will be registered under Locker.Registry.

Note also that if you need to override terminate/2 to do some cleaning up, you need to remember to add call to `super(reason, state)` so that the process will be unregistered on termination.

defmodule MyServer do
  use Locker.Server

  def init(_) do
    {:ok, %{}}
  end

  def terminate(reason, state) do
    super(reason, state) # will call Locker.Server.terminate/2.
  end
end