Fix monitor functions, closes #2294

Editor assessment

The subject states that monitor functions were fixed, with a meaningful api scope and a well-formed closes #2294 footer, but fixed what is left unsaid: which functions, what they returned wrongly, and on which platforms are all absent, so the header alone communicates almost nothing. The body consists only of a co-authored-by trailer, and no narrative exists to characterize the defect. The fix type is right, no additional footers appear, and hygiene is clean. The message defers entirely to the issue for substance, which caps its standalone value.