From bac8214e90488fd562d29f6fea18ae75ecd9029e Mon Sep 17 00:00:00 2001
From: Tavian Barnes <tavianator@tavianator.com>
Date: Wed, 27 Nov 2024 20:55:51 -0500
Subject: xtime: New timespec utility functions

---
 src/xtime.h | 36 ++++++++++++++++++++++++++++++++++++
 1 file changed, 36 insertions(+)

(limited to 'src/xtime.h')

diff --git a/src/xtime.h b/src/xtime.h
index 2927a2e..b76fef2 100644
--- a/src/xtime.h
+++ b/src/xtime.h
@@ -46,6 +46,42 @@ int xtimegm(struct tm *tm, time_t *timep);
  */
 int xgetdate(const char *str, struct timespec *result);
 
+/**
+ * Add to a timespec.
+ */
+void timespec_add(struct timespec *lhs, const struct timespec *rhs);
+
+/**
+ * Subtract from a timespec.
+ */
+void timespec_sub(struct timespec *lhs, const struct timespec *rhs);
+
+/**
+ * Compare two timespecs.
+ *
+ * @return
+ *         An integer with the sign of (*lhs - *rhs).
+ */
+int timespec_cmp(const struct timespec *lhs, const struct timespec *rhs);
+
+/**
+ * Update a minimum timespec.
+ */
+void timespec_min(struct timespec *dest, const struct timespec *src);
+
+/**
+ * Update a maximum timespec.
+ */
+void timespec_max(struct timespec *dest, const struct timespec *src);
+
+/**
+ * Convert a timespec to floating point.
+ *
+ * @return
+ *         The value in nanoseconds.
+ */
+double timespec_ns(const struct timespec *ts);
+
 /**
  * A timer.
  */
-- 
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