use AtomicU64 for stats, rename some members

src/stats.rs

@@ -1,9 +1,35 @@
 use rocket::serde::Serialize;
+use std::sync::atomic::{AtomicU64, Ordering};
 
-#[derive(Debug, Default, Clone, Copy, Serialize)]
-#[serde(crate = "rocket::serde")]
-pub struct Stats {
-    pub entries: usize,
-    pub blocked: usize,
-    pub request: usize,
+#[derive(Serialize)]
+pub struct Snapshot {
+    pub request: u64,
+    pub blocked: u64,
+    pub entries: u64,
+}
+
+#[derive(Default)]
+pub struct Total {
+    entries: AtomicU64,
+    blocked: AtomicU64,
+    request: AtomicU64,
+}
+
+impl Total {
+    pub fn snapshot(&self) -> Snapshot {
+        Snapshot {
+            request: self.request.load(Ordering::Relaxed),
+            blocked: self.blocked.load(Ordering::Relaxed),
+            entries: self.entries.load(Ordering::Relaxed),
+        }
+    }
+    pub fn set_entries(&self, value: u64) {
+        self.entries.store(value, Ordering::Relaxed);
+    }
+    pub fn increase_blocked(&self) {
+        self.blocked.fetch_add(1, Ordering::Relaxed);
+    }
+    pub fn increase_request(&self) {
+        self.request.fetch_add(1, Ordering::Relaxed);
+    }
 }