netdev - [PATCH iproute2-next v2 2/6] json_print: Add print

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Date:   Mon, 15 Mar 2021 15:34:31 +0100
From:   Petr Machata <petrm@...dia.com>
To:     <netdev@...r.kernel.org>, <dsahern@...il.com>,
        <stephen@...workplumber.org>
CC:     Ido Schimmel <idosch@...dia.com>, Petr Machata <petrm@...dia.com>
Subject: [PATCH iproute2-next v2 2/6] json_print: Add print_tv()

Add a helper to dump a timeval. Print by first converting to double and
then dispatching to print_color_float().

Signed-off-by: Petr Machata <petrm@...dia.com>
---
 include/json_print.h |  1 +
 lib/json_print.c     | 13 +++++++++++++
 2 files changed, 14 insertions(+)

diff --git a/include/json_print.h b/include/json_print.h
index 6fcf9fd910ec..63eee3823fe4 100644
--- a/include/json_print.h
+++ b/include/json_print.h
@@ -81,6 +81,7 @@ _PRINT_FUNC(0xhex, unsigned long long)
 _PRINT_FUNC(luint, unsigned long)
 _PRINT_FUNC(lluint, unsigned long long)
 _PRINT_FUNC(float, double)
+_PRINT_FUNC(tv, struct timeval *)
 #undef _PRINT_FUNC
 
 #define _PRINT_NAME_VALUE_FUNC(type_name, type, format_char)		  \
diff --git a/lib/json_print.c b/lib/json_print.c
index 994a2f8d6ae0..1018bfb36d94 100644
--- a/lib/json_print.c
+++ b/lib/json_print.c
@@ -299,6 +299,19 @@ int print_color_null(enum output_type type,
 	return ret;
 }
 
+int print_color_tv(enum output_type type,
+		   enum color_attr color,
+		   const char *key,
+		   const char *fmt,
+		   struct timeval *tv)
+{
+	double usecs = tv->tv_usec;
+	double secs = tv->tv_sec;
+	double time = secs + usecs / 1000000;
+
+	return print_color_float(type, color, key, fmt, time);
+}
+
 /* Print line separator (if not in JSON mode) */
 void print_nl(void)
 {
-- 
2.26.2