ktime_get_snapshot_id(9)

📦 version 7.3.1, in nixpkgs unstable

✨ ktime_get_snapshot_id(9) ✨

okay so bestie, welcome to the Kernel API Manual 🫶 this one is from ktime_get_snapshot_id(9) and it is literally the "grab everything at once" of clock functions 💅

🌸 NAME 🌸

ktime_get_snapshot_id — simultaneously snapshot a given clock ID together with the corresponding monotonic raw clock and the underlying clocksource counter value ⏱️✨ like, all at the same time, no cap.

🎀 SYNOPSIS 🎀

void ktime_get_snapshot_id (clockid_t clock_id , struct system_time_snapshot *systime_snapshot );

🦋 ARGUMENTS 🦋

  • clock_id — the clock ID you wanna snapshot 👑 that's the one, babes.
  • systime_snapshot — pointer to the struct that's receiving the system time snapshot 💖 it's giving "here's your data, bestie".

💜 DESCRIPTION 💜

so for the system timekeeping clocks — that's REALTIME, MONOTONIC and BOOTTIME — the monotonic raw clock is CLOCK_MONOTONIC_RAW 🌈 iconic behaviour, honestly.

for AUX clocks, it's the monotonic raw clock that's related to the AUX clock. and these AUX-clock-related monotonic raw clocks have a strict linear offset to the system time CLOCK_MONOTONIC_RAW ✨ math time:

MONOTONIC_RAW(AUX$N) = CLOCK_MONOTONIC_RAW(system) + offset(AUX$N)

the offset gets established when an AUX clock is initialized 🎀 but — and this is the part where we sigh — it is currently not accessible 😭 like the info is just vibing there behind the glass, not for us. 🙈

🔥 SEE ALSO 🔥

literally the whole timekeeping friend group, go say hi 💅

alright bestie, that's the whole thing, mwah 💋 this page lives in ./kernel/time and the version vibes are dated October 2026 — until then, stay snapshotted, stay iconic 👑💖

📦 where this page comes from