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fix: make Moonpool_lwt.fut_of_lwt idempotent
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this way the resulting future can be cancelled/fulfilled from
the outside without crashing Lwt
This commit is contained in:
Simon Cruanes 2025-10-07 13:53:04 -04:00
parent 538f3df31a
commit 92300ad698
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1 changed files with 2 additions and 2 deletions
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src/lwt/moonpool_lwt.ml
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@ -142,10 +142,10 @@ end
(** Resolve [prom] with the result of [lwt_fut] *) (** Resolve [prom] with the result of [lwt_fut] *)
let transfer_lwt_to_fut (lwt_fut : 'a Lwt.t) (prom : 'a Fut.promise) : unit = let transfer_lwt_to_fut (lwt_fut : 'a Lwt.t) (prom : 'a Fut.promise) : unit =
Lwt.on_any lwt_fut Lwt.on_any lwt_fut
(fun x -> M.Fut.fulfill prom (Ok x)) (fun x -> M.Fut.fulfill_idempotent prom (Ok x))
(fun exn -> (fun exn ->
let bt = Printexc.get_callstack 10 in let bt = Printexc.get_callstack 10 in
M.Fut.fulfill prom (Error (Exn_bt.make exn bt))) M.Fut.fulfill_idempotent prom (Error (Exn_bt.make exn bt)))
let[@inline] register_trigger_on_lwt_termination (lwt_fut : _ Lwt.t) let[@inline] register_trigger_on_lwt_termination (lwt_fut : _ Lwt.t)
(tr : M.Trigger.t) : unit = (tr : M.Trigger.t) : unit =