Again

src/app.rs

@@ -1,3 +1,4 @@
+use arc_swap::ArcSwap;
 use parking_lot::Mutex;
 use rand::rngs::StdRng;
 use rand::SeedableRng;
@@ -60,7 +61,7 @@ impl Default for App {
 
 impl App {
     pub fn new() -> Self {
-        let variables = Arc::new(Mutex::new(HashMap::new()));
+        let variables = Arc::new(ArcSwap::from_pointee(HashMap::new()));
         let dict = Arc::new(Mutex::new(HashMap::new()));
         let rng = Arc::new(Mutex::new(StdRng::seed_from_u64(0)));
         let script_engine =
@@ -606,7 +607,7 @@ impl App {
                 link.set_tempo(tempo);
 
                 self.playback.clear_queues();
-                self.variables.lock().clear();
+                self.variables.store(Arc::new(HashMap::new()));
                 self.dict.lock().clear();
 
                 for (bank, pattern) in playing {