touchpad: reduce the jumping cursor warnings to 5 per day

It's been a while since we really could do something about those jumps,
so let's assume most of these are informative and not a bug in libinput.
For that let's not spam the user's journal and ratelimit it to a handful
a day.

Per day because that increases the chance of an error being present in
the recent logs if the user does search for it.

Related #663

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>

src/evdev-mt-touchpad.c

@@ -3667,8 +3667,8 @@ tp_init(struct tp_dispatch *tp,
 	if (!use_touch_size)
 		tp_init_pressure(tp, device);
 
-	/* 5 warnings per 2 hours should be enough */
+	/* 5 warnings per 24 hours should be enough */
-	ratelimit_init(&tp->jump.warning, s2us(2 * 60 * 60), 5);
+	ratelimit_init(&tp->jump.warning, h2us(24), 5);
 
 	/* Set the dpi to that of the x axis, because that's what we normalize
 	   to when needed*/

src/util-time.h

@@ -63,6 +63,12 @@ s2us(uint64_t s)
 	return ms2us(s * 1000);
 }
 
+static inline uint64_t
+h2us(uint64_t h)
+{
+	return s2us(h * 3600);
+}
+
 static inline uint32_t
 us2ms(uint64_t us)
 {

test/test-utils.c

@@ -707,6 +707,7 @@ START_TEST(time_conversion)
 	ck_assert_int_eq(ns2us(10000), 10);
 	ck_assert_int_eq(ms2us(10), 10000);
 	ck_assert_int_eq(s2us(1), 1000000);
+	ck_assert_int_eq(h2us(2), s2us(2 * 60 * 60));
 	ck_assert_int_eq(us2ms(10000), 10);
 }
 END_TEST