From: Libor Peltan <libor.peltan@nic.cz>
Date: Tue, 9 Sep 2025 07:08:11 +0000 (+0200)
Subject: contrib/time: add millisecond time functions
X-Git-Tag: v3.5.0~13^2~1
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8190a51ac65303058c7b22e9049e5558676f6885;p=thirdparty%2Fknot-dns.git

contrib/time: add millisecond time functions
---

diff --git a/src/contrib/time.c b/src/contrib/time.c
index 1ef6a2789c..50ab799a27 100644
--- a/src/contrib/time.c
+++ b/src/contrib/time.c
@@ -45,6 +45,28 @@ double time_diff_ms(const struct timespec *begin, const struct timespec *end)
 	return (result.tv_sec * 1e3) + (result.tv_nsec / 1e6);
 }
 
+knot_millis_t knot_millis_from_timespec(struct timespec *ts)
+{
+	return ts->tv_sec * 1000LLU + ts->tv_nsec / 1000000LLU;
+}
+
+struct timespec knot_millis_to_timespec(knot_millis_t ms)
+{
+	return (struct timespec){ .tv_sec = ms / 1000LLU, .tv_nsec = (ms % 1000LLU) * 1000000LLU };
+}
+
+knot_millis_t knot_millis_now(void)
+{
+	struct timespec ts = time_now();
+	return knot_millis_from_timespec(&ts);
+}
+
+void knot_millis_sleep(knot_millis_t ms)
+{
+	struct timespec ts = knot_millis_to_timespec(ms);
+	nanosleep(&ts, NULL);
+}
+
 typedef struct {
 	const char *format;
 	const char *timespec;
diff --git a/src/contrib/time.h b/src/contrib/time.h
index 6a353f673d..07cdd2465d 100644
--- a/src/contrib/time.h
+++ b/src/contrib/time.h
@@ -15,6 +15,8 @@
  #define st_mtim st_mtimespec
 #endif
 
+typedef unsigned long long knot_millis_t;
+
 /*!
  * \brief Specify output format for knot_time_print().
  */
@@ -41,6 +43,14 @@ struct timespec time_diff(const struct timespec *begin, const struct timespec *e
  */
 double time_diff_ms(const struct timespec *begin, const struct timespec *end);
 
+knot_millis_t knot_millis_from_timespec(struct timespec *ts);
+
+struct timespec knot_millis_to_timespec(knot_millis_t ms);
+
+knot_millis_t knot_millis_now(void);
+
+void knot_millis_sleep(knot_millis_t ms);
+
 /*!
  * \brief Data type for keeping UNIX timestamps.
  *