From aeeb18931da3c8444fc85db4da43e72a0ad2a46a Mon Sep 17 00:00:00 2001
From: Chris Boesch <chrboesch@noreply.codeberg.org>
Date: Mon, 6 Apr 2026 18:50:57 +0200
Subject: [PATCH] improvements for async-io

---
 exercises/090_async6.zig         | 7 ++++++-
 patches/patches/090_async6.patch | 8 ++++----
 2 files changed, 10 insertions(+), 5 deletions(-)

diff --git a/exercises/090_async6.zig b/exercises/090_async6.zig
index eab03c9..16fb75f 100644
--- a/exercises/090_async6.zig
+++ b/exercises/090_async6.zig
@@ -23,6 +23,11 @@
 //     }
 //     sel.cancelDiscard();  // cancel remaining, discard results
 //
+// As with all async primitives: tasks spawned in a Select MUST
+// be cleaned up. Use sel.cancel() to get remaining results one
+// by one (for resource cleanup), or sel.cancelDiscard() if you
+// don't need them.
+//
 // The buffer must be large enough for all tasks that might
 // complete before you call cancelDiscard().
 //
@@ -47,7 +52,7 @@ pub fn main(init: std.process.Init) !void {
 
     // Wait for the first finisher.
     // What Select method returns the first completed result?
-    const winner = ???;
+    const winner = try sel.???();
 
     switch (winner) {
         .hare => |msg| print("Hare: {s}\n", .{msg}),
diff --git a/patches/patches/090_async6.patch b/patches/patches/090_async6.patch
index 5ac777b..6289708 100644
--- a/patches/patches/090_async6.patch
+++ b/patches/patches/090_async6.patch
@@ -1,10 +1,10 @@
---- exercises/090_async6.zig	2026-04-02 10:25:34.016616118 +0200
-+++ answers/090_async6.zig	2026-04-02 10:27:48.827144051 +0200
-@@ -47,7 +47,7 @@
+--- exercises/090_async6.zig	2026-04-06 18:49:37.232023422 +0200
++++ answers/090_async6.zig	2026-04-06 18:49:22.189720687 +0200
+@@ -52,7 +52,7 @@
  
      // Wait for the first finisher.
      // What Select method returns the first completed result?
--    const winner = ???;
+-    const winner = try sel.???();
 +    const winner = try sel.await();
  
      switch (winner) {