From 1c6487c1e79cbe0d59a39b483af8ec44b59c586e Mon Sep 17 00:00:00 2001
From: Chris Boesch <chrboesch@noreply.codeberg.org>
Date: Fri, 3 Apr 2026 18:11:00 +0200
Subject: added async-io quiz

---
 exercises/089_async6.zig | 71 ------------------------------------------------
 1 file changed, 71 deletions(-)
 delete mode 100644 exercises/089_async6.zig

(limited to 'exercises/089_async6.zig')

diff --git a/exercises/089_async6.zig b/exercises/089_async6.zig
deleted file mode 100644
index eab03c9..0000000
--- a/exercises/089_async6.zig
+++ /dev/null
@@ -1,71 +0,0 @@
-//
-// Sometimes you want to race multiple tasks and act on whichever
-// finishes first. That's what Select is for!
-//
-// Select is like a Group, but lets you receive individual results
-// as tasks complete — one at a time:
-//
-//     const Race = std.Io.Select(union(enum) {
-//         fast: u32,
-//         slow: u32,
-//     });
-//
-//     var buffer: [2]Race.Union = undefined;
-//     var sel = Race.init(io, &buffer);
-//
-//     sel.async(.fast, fastFn, .{io});
-//     sel.async(.slow, slowFn, .{io});
-//
-//     const winner = try sel.await();  // returns first completed
-//     switch (winner) {
-//         .fast => |val| ...,
-//         .slow => |val| ...,
-//     }
-//     sel.cancelDiscard();  // cancel remaining, discard results
-//
-// The buffer must be large enough for all tasks that might
-// complete before you call cancelDiscard().
-//
-// Fix this program to receive the winner of the race.
-//
-const std = @import("std");
-const print = std.debug.print;
-
-const RaceResult = std.Io.Select(union(enum) {
-    hare: []const u8,
-    tortoise: []const u8,
-});
-
-pub fn main(init: std.process.Init) !void {
-    const io = init.io;
-
-    var buffer: [2]RaceResult.Union = undefined;
-    var sel = RaceResult.init(io, &buffer);
-
-    sel.async(.hare, runHare, .{io});
-    sel.async(.tortoise, runTortoise, .{io});
-
-    // Wait for the first finisher.
-    // What Select method returns the first completed result?
-    const winner = ???;
-
-    switch (winner) {
-        .hare => |msg| print("Hare: {s}\n", .{msg}),
-        .tortoise => |msg| print("Tortoise: {s}\n", .{msg}),
-    }
-
-    // Clean up the loser — we don't need their result.
-    sel.cancelDiscard();
-}
-
-fn runHare(io: std.Io) []const u8 {
-    // The hare is fast — only 1 second!
-    io.sleep(std.Io.Duration.fromSeconds(1), .awake) catch return "I got canceled!";
-    return "I'm fast!";
-}
-
-fn runTortoise(io: std.Io) []const u8 {
-    // The tortoise is slow — 10 seconds.
-    io.sleep(std.Io.Duration.fromSeconds(10), .awake) catch return "I got canceled!";
-    return "Slow and steady...";
-}
-- 
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