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-rw-r--r--lib/future.ml4
1 files changed, 2 insertions, 2 deletions
diff --git a/lib/future.ml b/lib/future.ml
index 23d089fb6b..247b139798 100644
--- a/lib/future.ml
+++ b/lib/future.ml
@@ -112,8 +112,8 @@ let create_delegate ?(blocking=true) ~name fix_exn =
if not blocking then (fun () -> raise (NotReady name)), ignore else
let lock = Mutex.create () in
let cond = Condition.create () in
- (fun () -> Mutex.lock lock; Condition.wait cond lock; Mutex.unlock lock),
- (fun () -> Mutex.lock lock; Condition.broadcast cond; Mutex.unlock lock) in
+ (fun () -> CThread.with_lock lock ~scope:(fun () -> Condition.wait cond lock)),
+ (fun () -> CThread.with_lock lock ~scope:(fun () -> Condition.broadcast cond)) in
let ck = create ~name ~fix_exn (Delegated wait) in
ck, assignment signal ck