ligo/src/utils/lwt_exit.ml

(**************************************************************************)
(*                                                                        *)
(*    Copyright (c) 2014 - 2016.                                          *)
(*    Dynamic Ledger Solutions, Inc. <contact@tezos.com>                  *)
(*                                                                        *)
(*    All rights reserved. No warranty, explicit or implicit, provided.   *)
(*                                                                        *)
(**************************************************************************)


exception Exit

let termination_thread, exit_wakener = Lwt.wait ()
let exit x = Lwt.wakeup exit_wakener x; raise Exit

let () =
  Lwt.async_exception_hook :=
    (function
      | Exit -> ()
      | exn ->
          Printf.eprintf "Uncaught (asynchronous) exception: %S\n%s\n%!"
            (Printexc.to_string exn) (Printexc.get_backtrace ());
          Lwt.wakeup exit_wakener 1)