https://git.ruby-lang.org/ruby.git/commit/?id=15c129d087

From 15c129d08790878444f3ecbdef0f8fe15eed06f4 Mon Sep 17 00:00:00 2001
From: Takashi Kokubun <takashikkbn@g...>
Date: Tue, 29 Dec 2020 22:02:46 -0800
Subject: Try increasing SMTP's read_timeout for --jit-wait

for random hangs like:
http://ci.rvm.jp/results/trunk-mjit-wait@phosphorus-docker/3302796
http://ci.rvm.jp/results/trunk-mjit-wait@phosphorus-docker/3302188
http://ci.rvm.jp/results/trunk-mjit-wait@phosphorus-docker/3301293

diff --git a/test/net/smtp/test_smtp.rb b/test/net/smtp/test_smtp.rb
index af30bb7..e909909 100644
--- a/test/net/smtp/test_smtp.rb
+++ b/test/net/smtp/test_smtp.rb
@@ -29,6 +29,17 @@ module Net https://github.com/ruby/ruby/blob/trunk/test/net/smtp/test_smtp.rb#L29
     end
 
     def setup
+      # Avoid hanging at fake_server_start's IO.select on --jit-wait CI like http://ci.rvm.jp/results/trunk-mjit-wait@phosphorus-docker/3302796
+      # Unfortunately there's no way to configure read_timeout for Net::SMTP.start.
+      if defined?(RubyVM::MJIT) && RubyVM::MJIT.enabled?
+        Net::SMTP.prepend Module.new {
+          def initialize(*)
+            super
+            @read_timeout *= 5
+          end
+        }
+      end
+
       @server_threads = []
     end
 
-- 
cgit v0.10.2


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