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more sanity checks

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Simon Cruanes 2025-09-04 15:32:32 -04:00
parent 63559f0f3b
commit 1eef212a3e
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2 changed files with 5 additions and 2 deletions
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4
src/lwt/moonpool_lwt.ml
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@ -34,7 +34,7 @@ module Scheduler_state = struct
tasks = Queue.create ();
actions_from_other_threads = Queue.create ();
mutex = Mutex.create ();
thread = Thread.self () |> Thread.id;
thread = -1;
closed = false;
as_runner = Moonpool.Runner.dummy;
enter_hook = None;
@ -157,6 +157,8 @@ let await_lwt (fut : _ Lwt.t) =
)
let lwt_of_fut (fut : 'a M.Fut.t) : 'a Lwt.t =
if not (Ops.on_lwt_thread_ Scheduler_state.st) then
failwith "lwt_of_fut: not on the lwt thread";
let lwt_fut, lwt_prom = Lwt.wait () in
(* in lwt thread, resolve [lwt_fut] *)

3
src/lwt/moonpool_lwt.mli
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@ -18,7 +18,8 @@ val fut_of_lwt : 'a Lwt.t -> 'a Moonpool.Fut.t
val lwt_of_fut : 'a Moonpool.Fut.t -> 'a Lwt.t
(** [lwt_of_fut fut] makes a lwt future that completes when [fut] does. This
must be called from the Lwt thread, and the result must always be used only
from inside the Lwt thread. *)
from inside the Lwt thread.
@raise Failure if not run from the lwt thread. *)
(** {2 Helpers on the moonpool side} *)