Init

src/state/live_keys.rs

@@ -0,0 +1,21 @@
+use std::sync::atomic::{AtomicBool, Ordering};
+
+#[derive(Default)]
+pub struct LiveKeyState {
+    fill: AtomicBool,
+}
+
+impl LiveKeyState {
+    pub fn new() -> Self {
+        Self::default()
+    }
+
+    pub fn fill(&self) -> bool {
+        self.fill.load(Ordering::Relaxed)
+    }
+
+    pub fn flip_fill(&self) {
+        let current = self.fill.load(Ordering::Relaxed);
+        self.fill.store(!current, Ordering::Relaxed);
+    }
+}