设置带有ttl的Lru

.vscode/settings.json

@@ -1,3 +1,6 @@
 {
-    "cmake.configureOnOpen": true
+    "cmake.configureOnOpen": true,
+    "rust-analyzer.cargo.features": [
+        "ttl"
+    ],
 }

Cargo.toml

@@ -24,4 +24,5 @@ opt-level = 3
 debug = true
 
 [features]
-hashbrown=[]
+hashbrown=[]
+ttl=[]

examples/lru.rs

@@ -1,5 +1,14 @@
 
 use algorithm::LruCache;
+
+fn run_ttl() {
+    let mut lru = LruCache::new(3);
+    lru.insert_with_ttl("help", "ok", 1);
+    assert_eq!(lru.len(), 1);
+    std::thread::sleep(std::time::Duration::from_secs(1));
+    assert_eq!(lru.get("help"), None);
+    assert_eq!(lru.len(), 0);
+}
 fn main() {
     let mut lru = LruCache::new(3);
     lru.insert("now", "ok");
@@ -10,4 +19,6 @@ fn main() {
     assert_eq!(lru.get("hello"), Some(&"algorithm"));
     assert_eq!(lru.get("this"), Some(&"lru"));
     assert_eq!(lru.get("now"), None);
+
+    run_ttl();
 }