dets.ex

defmodule TermStorage do
  use Task

  def start_link(args \\ []) do
    Task.start_link(fn ->
      table_name = Keyword.get(args, :table_name, __MODULE__)

      {:ok, _table} = :dets.open_file(table_name, auto_save: to_timeout(second: 1))

      Process.hibernate(Function, :identity, [nil])
    end)
  end

  def get(table_name \\ __MODULE__, key) do
    case :dets.lookup(table_name, key) do
      [{^key, value}] -> {:ok, value}
      [] -> :empty
    end
  end

  def put(table_name \\ __MODULE__, key, value) do
    :dets.insert(table_name, {key, value})
  end
end