https://git.ruby-lang.org/ruby.git/commit/?id=8a9dfb676b

From 8a9dfb676b0df74644ddd1db6cfefdd2c9283e8a Mon Sep 17 00:00:00 2001
From: David CARLIER <devnexen@g...>
Date: Mon, 2 May 2022 11:33:57 +0100
Subject: sockets add `TCP_CONNECTION_INFO` and `TCP_KEEPALIVE` constants.

---
 ext/socket/mkconstants.rb | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/ext/socket/mkconstants.rb b/ext/socket/mkconstants.rb
index 4de4b2248c..5e1fcc40d1 100644
--- a/ext/socket/mkconstants.rb
+++ b/ext/socket/mkconstants.rb
@@ -671,9 +671,11 @@ IPX_TYPE https://github.com/ruby/ruby/blob/trunk/ext/socket/mkconstants.rb#L671
 
 TCP_NODELAY	nil	Don't delay sending to coalesce packets
 TCP_MAXSEG	nil	Set maximum segment size
+TCP_CONNECTION_INFO     nil     Retrieve information about this socket (macOS)
 TCP_CORK	nil	Don't send partial frames (Linux 2.2, glibc 2.2)
 TCP_DEFER_ACCEPT	nil	Don't notify a listening socket until data is ready (Linux 2.4, glibc 2.2)
 TCP_INFO	nil	Retrieve information about this socket (Linux 2.4, glibc 2.2)
+TCP_KEEPALIVE	nil	Idle time before keepalive probes are sent (macOS)
 TCP_KEEPCNT	nil	Maximum number of keepalive probes allowed before dropping a connection (Linux 2.4, glibc 2.2)
 TCP_KEEPIDLE	nil	Idle time before keepalive probes are sent (Linux 2.4, glibc 2.2)
 TCP_KEEPINTVL	nil	Time between keepalive probes (Linux 2.4, glibc 2.2)
-- 
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