Implement CAS-based 64-bit fetch_add on i686.

2024-06-27 21:29:22 +02:00
parent bda8fe89c6
commit 9609c7bc26
1 changed files with 4 additions and 0 deletions
@@ -523,5 +523,9 @@ mod atomic {
            self.fetch_update(order, Ordering::Relaxed, |b| Some(b & bits))
                .unwrap()
        }
+        pub fn fetch_add(&self, term: u64, order: Ordering) -> u64 {
+            self.fetch_update(order, Ordering::Relaxed, |b| Some(b.wrapping_add(term)))
+                .unwrap()
+        }
    }
 }