From 0bc7cf47c1266f9ae510c70833b5691c693c769f Mon Sep 17 00:00:00 2001
From: Pascal Obry <obry@adacore.com>
Date: Wed, 7 Apr 2021 09:05:06 +0200
Subject: [PATCH] [Ada] Add some OS constants to control keepalive on TCP
 connections

gcc/ada/

	* s-oscons-tmplt.c: Add some OS constants.
---
 gcc/ada/s-oscons-tmplt.c | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/gcc/ada/s-oscons-tmplt.c b/gcc/ada/s-oscons-tmplt.c
index 25a4df0cedcb..d42e663fdde5 100644
--- a/gcc/ada/s-oscons-tmplt.c
+++ b/gcc/ada/s-oscons-tmplt.c
@@ -1501,6 +1501,21 @@ CNS(MSG_Forced_Flags, "")
 #endif
 CND(TCP_NODELAY, "Do not coalesce packets")
 
+#ifndef TCP_KEEPCNT
+# define TCP_KEEPCNT -1
+#endif
+CND(TCP_KEEPCNT, "Maximum number of keepalive probes")
+
+#ifndef TCP_KEEPIDLE
+# define TCP_KEEPIDLE -1
+#endif
+CND(TCP_KEEPIDLE, "Idle time before TCP starts sending keepalive probes")
+
+#ifndef TCP_KEEPINTVL
+# define TCP_KEEPINTVL -1
+#endif
+CND(TCP_KEEPINTVL, "Time between individual keepalive probes")
+
 #ifndef SO_REUSEADDR
 # define SO_REUSEADDR -1
 #endif
-- 
2.47.2