From 9ff180dd8edc0bd996569bab9c1336b026d5a75c Mon Sep 17 00:00:00 2001
From: Wildan M <willnode@wellosoft.net>
Date: Sat, 23 May 2026 08:38:13 +0700
Subject: [PATCH] Add TimeSpec conversion utility

---
 src/data.rs | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/src/data.rs b/src/data.rs
index 311ba3df3f..8ba0d1a05c 100644
--- a/src/data.rs
+++ b/src/data.rs
@@ -224,6 +224,20 @@ pub struct TimeSpec {
     pub tv_nsec: i32,
 }
 
+const NANOS_PER_SEC: u128 = 1_000_000_000;
+
+impl TimeSpec {
+    pub fn from_nanos(nanos: u128) -> Self {
+        Self {
+            tv_sec: i64::try_from(nanos / NANOS_PER_SEC).unwrap_or(i64::MAX),
+            tv_nsec: (nanos % NANOS_PER_SEC) as i32, // guaranteed to never overflow
+        }
+    }
+    pub fn to_nanos(&self) -> u128 {
+        self.tv_sec as u128 * NANOS_PER_SEC + self.tv_nsec as u128
+    }
+}
+
 impl Deref for TimeSpec {
     type Target = [u8];
     fn deref(&self) -> &[u8] {