[libcxx-commits] [libcxx] [libc++] refactor `cxx_atomic_wait` to make it reusable for atomic_ref (PR #81427)

[Louis Dionne via libcxx-commits]

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@@ -56,42 +90,39 @@ __libcpp_atomic_monitor(__cxx_atomic_contention_t const volatile*);
 _LIBCPP_AVAILABILITY_SYNC _LIBCPP_EXPORTED_FROM_ABI void
 __libcpp_atomic_wait(__cxx_atomic_contention_t const volatile*, __cxx_contention_t);
 
-template <class _Atp, class _Poll>
-struct __libcpp_atomic_wait_backoff_impl {
-  _Atp* __a_;
+template <class _AtomicWaitable, class _Poll>
+struct __atomic_wait_backoff_impl {
+  const _AtomicWaitable& __a_;
   _Poll __poll_;
   memory_order __order_;
 
   _LIBCPP_AVAILABILITY_SYNC
   _LIBCPP_HIDE_FROM_ABI bool
-  __poll_or_get_monitor(__cxx_atomic_contention_t const volatile*, __cxx_contention_t& __monitor) const {
-    // In case the atomic can be waited on directly, the monitor value is just
-    // the value of the atomic.
-    // `__poll_` takes the current value of the atomic as an in-out argument
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ldionne wrote:

Did you intent to remove this part of the comment, or is that a rebase artifact?

https://github.com/llvm/llvm-project/pull/81427