Take higher level CFAllocator instead of CFAllocatorRef

Author: faern

system-configuration/src/preferences.rs

@@ -13,7 +13,7 @@
 //! [`SCPreferences`]: https://developer.apple.com/documentation/systemconfiguration/scpreferences-ft8
 
 
-use core_foundation::base::{CFAllocatorRef, TCFType};
+use core_foundation::base::{CFAllocator, TCFType};
 use core_foundation::string::CFString;
 
 pub use system_configuration_sys::preferences::*;
@@ -50,7 +50,7 @@ impl SCPreferences {
     ///
     /// [SCPreferencesCreate]: https://developer.apple.com/documentation/systemconfiguration/1516807-scpreferencescreate?language=objc
     pub fn with_allocator(
-        allocator: CFAllocatorRef,
+        allocator: &CFAllocator,
         calling_process_name: &CFString,
         prefs_id: Option<&CFString>,
     ) -> Self {
@@ -61,7 +61,7 @@ impl SCPreferences {
 
         unsafe {
             SCPreferences::wrap_under_create_rule(SCPreferencesCreate(
-                allocator,
+                allocator.as_concrete_TypeRef(),
                 calling_process_name.as_concrete_TypeRef(),
                 prefs_id_ptr,
             ))