Fix an issue that the last modified time might be get a little too early

if eviction listener is enabled

src/future/base_cache.rs

@@ -479,7 +479,6 @@ where
     ) -> (WriteOp<K, V>, Instant) {
         self.retry_interrupted_ops().await;
 
-        let ts = self.current_time_from_expiration_clock();
         let weight = self.inner.weigh(&key, &value);
         let op_cnt1 = Arc::new(AtomicU8::new(0));
         let op_cnt2 = Arc::clone(&op_cnt1);
@@ -494,6 +493,8 @@ where
             None
         };
 
+        let ts = self.current_time_from_expiration_clock();
+
         // Since the cache (cht::SegmentedHashMap) employs optimistic locking
         // strategy, insert_with_or_modify() may get an insert/modify operation
         // conflicted with other concurrent hash table operations. In that case, it

src/sync_base/base_cache.rs

@@ -480,7 +480,6 @@ where
         hash: u64,
         value: V,
     ) -> (WriteOp<K, V>, Instant) {
-        let ts = self.current_time_from_expiration_clock();
         let weight = self.inner.weigh(&key, &value);
         let op_cnt1 = Rc::new(AtomicU8::new(0));
         let op_cnt2 = Rc::clone(&op_cnt1);
@@ -491,6 +490,8 @@ where
         let kl = self.maybe_key_lock(&key);
         let _klg = &kl.as_ref().map(|kl| kl.lock());
 
+        let ts = self.current_time_from_expiration_clock();
+
         // Since the cache (cht::SegmentedHashMap) employs optimistic locking
         // strategy, insert_with_or_modify() may get an insert/modify operation
         // conflicted with other concurrent hash table operations. In that case, it