Factor warp config into separate function

src/main.rs

@@ -15,8 +15,10 @@ use warp::{Filter, sse, sse::ServerSentEvent};
 const OUTDOOR_CHIME_FILE: &str = "static/outdoor.mp3";
 
 const BUTTON_PIN: u8 = 26;
+const CHANNEL_VEC_SIZE: usize = 32;
 
-fn button_pressed(_level: Level, clients: &Arc<Mutex<SmallVec<[mpsc::Sender<()>; 8]>>>) {
+fn button_pressed(_level: Level,
+                  clients: &Arc<Mutex<SmallVec<[mpsc::Sender<()>; CHANNEL_VEC_SIZE]>>>) {
   info!("DOORBELL PRESS");
   clients.lock().unwrap().retain(|tx: &mut mpsc::Sender<()>| {
     match tx.try_send(()) {
@@ -44,6 +46,11 @@ async fn main() {
   pin.set_async_interrupt(Trigger::FallingEdge, move |level| button_pressed(level, &clients))
      .expect("set interrupt");
 
+  let warp = warp(events_clients);
+  warp.await;
+}
+
+async fn warp(clients: Arc<Mutex<SmallVec<[mpsc::Sender<()>; CHANNEL_VEC_SIZE]>>>) {
   // GET /
   let root = warp::path::end()
     .and(warp::get())
@@ -56,7 +63,7 @@ async fn main() {
     .map(move || {
       info!("GET /events");
       let (tx, rx) = mpsc::channel(1);
-      events_clients.lock().unwrap().push(tx);
+      clients.lock().unwrap().push(tx);
 
       let stream = stream::select(
         interval(Duration::from_secs(3)).map(move |_| {