Run executor thread on system core

ctru-rs/examples/futures-basic.rs

@@ -22,7 +22,9 @@ fn main() {
 
     let (exit_sender, mut exit_receiver) = futures::channel::oneshot::channel();
     let (mut timer_sender, mut timer_receiver) = futures::channel::mpsc::channel(0);
-    let executor_thread = ctru::thread::spawn(move || {
+    let executor_thread = ctru::thread::Builder::new()
+        .affinity(1)
+        .spawn(move || {
             let mut executor = futures::executor::LocalPool::new();
 
             executor.run_until(async move {
@@ -35,7 +37,8 @@ fn main() {
                     }
                 }
             });
-    });
+        })
+        .expect("Failed to create executor thread");
 
     println!("Executor started!");