It simply provides module that you can use instead of GenServer.call/2 to make “calls” synchronous, ex. if you have:
{:ok, pid} = GenServer.start_link(Clint.Worker, args)
GenServer.cast(pid, {:fire, url})
You can replace it with:
{:ok, pidish} = :gen_local.start_link(Clint.Worker, args)
{:ok, pidish} = :gen_local.cast(pidish, {:fire, url}
To run whole thing synchronously. Unfortunately there is no support for named processes as this would make state handling pretty hard and slightly “automagical”. Of course this approach do not suite all gen_server use cases as for example it will not work with active gen_tcp/gen_udp connections (naturally).
