From 3615365d67ac4cc536d262c59490bc0d123adec0 Mon Sep 17 00:00:00 2001
From: Charlie Savage <cfis@savagexi.com>
Date: Mon, 17 Apr 2023 01:26:14 -0700
Subject: [PATCH] Try with scheduler from ruby 3.2.1 (the version from 3.0.3
 does not work with ruby 3.2.1).

---
 test/scheduler.rb | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/test/scheduler.rb b/test/scheduler.rb
index a9cf7a91..204a2971 100644
--- a/test/scheduler.rb
+++ b/test/scheduler.rb
@@ -14,6 +14,14 @@
 end
 
 class Scheduler
+  experimental = Warning[:experimental]
+  begin
+    Warning[:experimental] = false
+    IO::Buffer.new(0)
+  ensure
+    Warning[:experimental] = experimental
+  end
+
   def initialize
     @readable = {}
     @writable = {}
@@ -199,6 +207,7 @@ def io_select(...)
   # Used for Kernel#sleep and Thread::Mutex#sleep
   def kernel_sleep(duration = nil)
     # $stderr.puts [__method__, duration, Fiber.current].inspect
+
     self.block(:sleep, duration)
 
     return true