From 3db92496f6d192b44713281a43fe91c93cd4fba1 Mon Sep 17 00:00:00 2001
From: Jules Kerssemakers <jules.kerssemakers+github@gmail.com>
Date: Wed, 7 Jun 2017 21:23:10 +0200
Subject: [PATCH] signal: Ctrl+C example: highlight power of Stream::for_each()

---
 examples/ctrl-c/src/main.rs | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

diff --git a/examples/ctrl-c/src/main.rs b/examples/ctrl-c/src/main.rs
index be8962215..16edd592a 100644
--- a/examples/ctrl-c/src/main.rs
+++ b/examples/ctrl-c/src/main.rs
@@ -16,13 +16,18 @@ fn main() {
 
     println!("This program is now waiting for you to press Ctrl+C");
 
+    // for_each is a powerful primitive provided by the Futures crate
+    // it turns a Stream into a Future that completes after all stream-items
+    // have been completed.
+    let future = stream.for_each(|()| {
+        println!("Ctrl+C received!");
+        Ok(())
+    });
+
     // Up until now, we haven't really DONE anything, just prepared
     // now it's time to actually schedule, and thus execute, the stream
     // on our event loop
-    core.run(stream.for_each(|()| {
-        println!("Ctrl-C received!");
-        Ok(())
-    })).unwrap();
+    core.run(future).unwrap();
 
     println!("this won't be printed, because the received Ctrl+C will also kill the program");
     unreachable!();