Add atomic_shim impl for fetch_max

spacejam · spacejam · commit c420b010561b · 2022-02-25T16:35:03.000+01:00
diff --git a/src/atomic_shim.rs b/src/atomic_shim.rs
@@ -116,6 +116,14 @@ mod shim {
             *lock = prev ^ val;
             prev
         }
+
+        #[allow(dead_code)]
+        pub fn fetch_max(&self, val: u64, _: Ordering) -> u64 {
+            let mut lock = self.value.write();
+            let prev = *lock;
+            *lock = prev.max(val);
+            prev
+        }
     }
 
     impl From<u64> for AtomicU64 {

Original file line number	Diff line number	Diff line change
`@@ -116,6 +116,14 @@ mod shim {`
`116`	`116`	`*lock = prev ^ val;`
`117`	`117`	`prev`
`118`	`118`	`}`
	`119`	`+`
	`120`	`+ #[allow(dead_code)]`
	`121`	`+ pub fn fetch_max(&self, val: u64, _: Ordering) -> u64 {`
	`122`	`+ let mut lock = self.value.write();`
	`123`	`+ let prev = *lock;`
	`124`	`+ *lock = prev.max(val);`
	`125`	`+ prev`
	`126`	`+ }`
`119`	`127`	`}`
`120`	`128`
`121`	`129`	`impl From<u64> for AtomicU64 {`