1 files changed, 4 insertions, 0 deletions
diff --git a/third_party/rust/coreaudio-sys-utils/src/audio_object.rs b/third_party/rust/coreaudio-sys-utils/src/audio_object.rs
index 368d6caadc..b8d74c80fc 100644
--- a/third_party/rust/coreaudio-sys-utils/src/audio_object.rs
+++ b/third_party/rust/coreaudio-sys-utils/src/audio_object.rs
@@ -1,3 +1,4 @@
+use crate::dispatch::*;
 use coreaudio_sys::*;
 use std::fmt;
 use std::os::raw::c_void;
@@ -77,6 +78,7 @@ pub fn audio_object_set_property_data<T>(
     size: usize,
     data: *const T,
 ) -> OSStatus {
+    debug_assert_running_serially();
     unsafe {
         AudioObjectSetPropertyData(
             id,
@@ -99,6 +101,7 @@ pub fn audio_object_add_property_listener<T>(
     listener: audio_object_property_listener_proc,
     data: *mut T,
 ) -> OSStatus {
+    debug_assert_running_serially();
     unsafe { AudioObjectAddPropertyListener(id, address, Some(listener), data as *mut c_void) }
 }
 
@@ -108,6 +111,7 @@ pub fn audio_object_remove_property_listener<T>(
     listener: audio_object_property_listener_proc,
     data: *mut T,
 ) -> OSStatus {
+    debug_assert_running_serially();
     unsafe { AudioObjectRemovePropertyListener(id, address, Some(listener), data as *mut c_void) }
 }