v0.34.0_1

src/cache/lifecycle.rs

@@ -8,6 +8,7 @@ impl Cache {
             revision: AtomicU64::new(revision),
             cold: Arc::new(Mutex::new(ColdStore::default())),
             tier_settings: Mutex::new(Settings::default()),
+            scope_revisions: Mutex::new(HashMap::new()),
             data_root: None,
             cold_tx: None,
             cold_delete_fallbacks: Arc::new(Semaphore::new(COLD_DELETE_FALLBACKS)),
@@ -37,6 +38,16 @@ impl Cache {
         data_root: Option<PathBuf>,
         settings: Settings,
         shutdown: CancellationToken,
+    ) -> Arc<Self> {
+        Self::start_with_scope_revisions(revision, data_root, settings, shutdown, HashMap::new())
+    }
+
+    pub fn start_with_scope_revisions(
+        revision: u64,
+        data_root: Option<PathBuf>,
+        settings: Settings,
+        shutdown: CancellationToken,
+        scope_revisions: HashMap<String, u64>,
     ) -> Arc<Self> {
         let (tx, rx) = mpsc::channel(COLD_QUEUE);
         let cache = Arc::new(Self {
@@ -47,6 +58,7 @@ impl Cache {
             revision: AtomicU64::new(revision),
             cold: Arc::new(Mutex::new(ColdStore::default())),
             tier_settings: Mutex::new(settings),
+            scope_revisions: Mutex::new(scope_revisions),
             data_root,
             cold_tx: Some(tx),
             cold_delete_fallbacks: Arc::new(Semaphore::new(COLD_DELETE_FALLBACKS)),
@@ -291,6 +303,17 @@ impl Cache {
         }
     }
 
+    /// Block requests bound to an old immutable routing snapshot from creating
+    /// cache tickets during a concurrent configuration publication. This does
+    /// not clear HOT or COLD and does not modify the representation revision.
+    pub fn set_control_revision(&self, revision: u64) {
+        self.store.lock().unwrap_or_else(|e| e.into_inner()).control_revision = revision;
+    }
+
+    pub fn replace_scope_revisions(&self, scopes: HashMap<String, u64>) {
+        *self.scope_revisions.lock().unwrap_or_else(|e| e.into_inner()) = scopes;
+    }
+
     pub fn configure(&self, settings: Settings) {
         *self.tier_settings.lock().unwrap_or_else(|e| e.into_inner()) = settings.clone();
         // Hot-applied limit reductions take effect immediately for published HOT