Clear read cache

storage/src/storage.rs

@@ -35,6 +35,10 @@ impl<SB: StorageBackend> Storage<SB> {
       .transaction_mut(Rc::downgrade(&self.sb), |sb| sb.remove_head(ptr))
   }
 
+  pub fn clear_read_cache(&mut self) {
+    self.sb.borrow_mut().get_read_cache().clear()
+  }
+
   pub fn store_tmp<SE: StorageEntity<SB>>(
     &mut self,
     value: &SE,

vstc/src/db_host.rs

@@ -107,7 +107,6 @@ impl DbActor {
     Self {
       storage,
       apply_fn: inline_valuescript(
-        // TODO: store in actor
         r#"
           export default function(req) {
             if ("handleRequest" in this) {
@@ -197,6 +196,9 @@ impl Handler<DbRequest> for DbActor {
       .set_head(storage_head_ptr(b"state"), &instance)
       .unwrap();
 
+    // TODO: Consider more cache retention
+    self.storage.clear_read_cache();
+
     res
   }
 }