Sleep while waiting for SIGINT

{{project-name}}/src/main.rs

@@ -23,6 +23,8 @@ use std::{
     convert::{TryFrom,TryInto},
     sync::Arc,
     sync::atomic::{AtomicBool, Ordering},
+    thread,
+    time::Duration,
 };
 use structopt::StructOpt;
 
@@ -99,7 +101,9 @@ fn try_main() -> Result<(), anyhow::Error> {
     }).expect("Error setting Ctrl-C handler");
 
     println!("Waiting for Ctrl-C...");
-    while running.load(Ordering::SeqCst) {}
+    while running.load(Ordering::SeqCst) {
+        thread::sleep(Duration::from_millis(500))
+    }
     println!("Exiting...");
 
     Ok(())