netdev - [PATCH 08/10] ss: symmetrical subhandler output extension example

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Message-Id: <1439162006-11421-9-git-send-email-matthias.tafelmeier@gmx.net>
Date:	Mon, 10 Aug 2015 01:13:24 +0200
From:	Matthias Tafelmeier <matthias.tafelmeier@....net>
To:	netdev@...r.kernel.org
Cc:	hagen@...u.net, shemminger@...l.org, fw@...len.de,
	edumazet@...gle.com, daniel@...earbox.net
Subject: [PATCH 08/10] ss: symmetrical subhandler output extension example

This small sized patch shall convey the locations which have to be
changed for a symmetrical output extension. Symmetrical means in this
context all existing semantically related handlers in the diverse
formatters (for hr and json up to now).

Signed-off-by: Matthias Tafelmeier <matthias.tafelmeier@....net>
Suggested-by: Hagen Paul Pfeifer <hagen@...u.net>
---
 misc/ss_hr_fmt.c   | 2 ++
 misc/ss_json_fmt.c | 4 +++-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/misc/ss_hr_fmt.c b/misc/ss_hr_fmt.c
index 6955ea5..40b6b7c 100644
--- a/misc/ss_hr_fmt.c
+++ b/misc/ss_hr_fmt.c
@@ -82,6 +82,8 @@ static void tcp_stats_hr_fmt(struct tcpstat *s)
 		printf(" reordering:%d", s->reordering);
 	if (s->rcv_rtt)
 		printf(" rcv_rtt:%g", s->rcv_rtt);
+	if (s->rcv_space)
+		printf(" rcv_space:%d", s->rcv_space);
 
 	CHECK_FMT_ADAPT(s->rcv_space, s,
 	hr_handler_must_be_adapted_accordingly_when_json_fmt_is_extended);
diff --git a/misc/ss_json_fmt.c b/misc/ss_json_fmt.c
index f1a53cd..e80f063 100644
--- a/misc/ss_json_fmt.c
+++ b/misc/ss_json_fmt.c
@@ -161,7 +161,9 @@ static void tcp_stats_json_fmt(struct tcpstat *s)
 	if (s->rcv_rtt) {
 		printf(",\n%s\"rcv_rtt\": %g", indent1, s->rcv_rtt);
 	}
-
+	if (s->rcv_space) {
+		printf(",\n%s\"rcv_space\": %d", indent1, s->rcv_space);
+	}
 	/*deal with special case */
 	res_json_fmt_branch(s->ss.state == SS_LISTEN, ' ');
 
-- 
1.9.1

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