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mariaex

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Pure elixir database driver for MariaDB / MySQL.

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mariaex lib mariaex cache.ex
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lib/mariaex/cache.ex 

defmodule Mariaex.Cache do

  @moduledoc false



  def new() do

    :ets.new(:cache, [:public])

  end



  def id(cache, name) do

    try do

      :ets.lookup_element(cache, name, 2)

    catch

      :error, :badarg ->

        nil

    end

  end



  def lookup(cache, name) do

    case :ets.match(cache, {name, :"$1", :"$2"}) do

      [[id, ref]] ->

        {id, ref}

      [] ->

        nil

    end

  end



  def take(cache, name) do

    case :ets.take(cache, name) do

      [{_, id, _}] -> id

      []           -> nil

    end

  end



  def insert_new(cache, name, id, ref) do

    :ets.insert_new(cache, {name, id, ref})

  end



  def delete(cache, name) do

    :ets.delete(cache, name)

  end

end