Function mozjs::jsapi::JS::IncrementalGCHasForegroundWork

pub unsafe extern "C" fn IncrementalGCHasForegroundWork(
    cx: *mut JSContext
) -> bool

Return whether an incremental GC has work to do on the foreground thread and would make progress if a slice was run now. If this returns false then the GC is waiting for background threads to finish their work and a slice started now would return immediately.