From 1119ad3a2fc0a504a3e17b5aa6439f8553aa2848 Mon Sep 17 00:00:00 2001
From: Matt Johnston <matt@ucc.asn.au>
Date: Wed, 26 Oct 2011 16:02:06 +0000
Subject: [PATCH] Set IPTOS_LOWDELAY for IPv6 too

--HG--
extra : convert_revision : bebc84493fc5f4ca914ae8828e6db7204c086ac2
---
 dbutil.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/dbutil.c b/dbutil.c
index abbd040..39804ce 100644
--- a/dbutil.c
+++ b/dbutil.c
@@ -161,10 +161,12 @@ static void set_sock_priority(int sock) {
 	val = 1;
 	setsockopt(sock, IPPROTO_TCP, TCP_NODELAY, (void*)&val, sizeof(val));
 
-	/* set the TOS bit. note that this will fail for ipv6, I can't find any
-	 * equivalent. */
+	/* set the TOS bit for either ipv4 or ipv6 */
 #ifdef IPTOS_LOWDELAY
 	val = IPTOS_LOWDELAY;
+#ifdef IPPROTO_IPV6
+	setsockopt(sock, IPPROTO_IPV6, IPV6_TCLASS, (void*)&val, sizeof(val));
+#endif
 	setsockopt(sock, IPPROTO_IP, IP_TOS, (void*)&val, sizeof(val));
 #endif