feat: current state

src/platform/clock.rs

@@ -1 +1,17 @@
-pub trait Clock {} pub struct SystemClock;
+use async_trait::async_trait;
+use std::time::{Duration, Instant};
+#[async_trait]
+pub trait Clock: Send + Sync {
+    fn now(&self) -> Instant;
+    async fn sleep(&self, duration: Duration);
+}
+pub struct SystemClock;
+#[async_trait]
+impl Clock for SystemClock {
+    fn now(&self) -> Instant {
+        Instant::now()
+    }
+    async fn sleep(&self, duration: Duration) {
+        tokio::time::sleep(duration).await;
+    }
+}