Move wayvr-ipc to our workspace (#324)

wayvr-ipc/src/util/notifier.rs

@@ -0,0 +1,25 @@
+use std::sync::Arc;
+
+use tokio::sync::Notify;
+
+// Copyable wrapped Notify struct for easier usage
+#[derive(Default, Clone)]
+pub struct Notifier {
+	notifier: Arc<Notify>,
+}
+
+impl Notifier {
+	pub fn new() -> Self {
+		Self {
+			notifier: Arc::new(Notify::new()),
+		}
+	}
+
+	pub fn notify(&self) {
+		self.notifier.notify_waiters();
+	}
+
+	pub async fn wait(&self) {
+		self.notifier.notified().await;
+	}
+}