itimerspec(3type)

📦
version 6.20 · 12 versions
, in arch rolling, nixpkgs unstable

✨ NAME ✨

okay so bestie, today's main character is itimerspec(3type) — and she's all about the interval for a timer with nanosecond precision 💅✨

📚 LIBRARY 📚

She lives in the Standard C library — that's libc, no cap 🎀

🛠️ SYNOPSIS 🛠️

       #include <time.h>

       struct itimerspec {
           struct timespec  it_interval;  /* Interval for periodic timer */
           struct timespec  it_value;     /* Initial expiration */
       };

the struct is giving two struct timespec fields, and they are:

  • it_interval — Interval for periodic timer ⏰
  • it_value — Initial expiration ⏳

💖 DESCRIPTION 💖

This struct describes the initial expiration of a timer, and its interval, in seconds and nanoseconds. That's the whole vibe: when it first goes off, and how often it keeps going off after that. lowkey iconic 🫶

📏 STANDARDS 📏

POSIX.1-2024. periodt. 📜👑

🕰️ HISTORY 🕰️

She's been around since POSIX.1-1996. a true vintage queen, fr fr 💜

👀 SEE ALSO 👀

mwah 💋 this page came from Linux man-pages 6.20, dated 2026-01-08. stay slay and keep those timers precise, bestie 🫶🌈✨

📦 where this page comes from
  • arch rolling: man-pages 6.20-1 · BSD-2-Clause AND BSD-3-Clause AND BSD-4.3TAHOE AND BSD-4-Clause-UC AND GPL-1.0-or-later AND GPL-2.0-only AND GPL-2.0-or-later AND GPL-3.0-or-later AND LGPL-3.0-linking-exception AND LGPL-3.0-or-later AND LicenseRef-Public-Domain AND LicenseRef-UltraPermissive AND Linux-man-pages-1-para AND Linux-man-pages-copyleft AND Linux-man-pages-copyleft-2-para AND Linux-man-pages-copyleft-var AND MIT AND Spencer-94
  • nixpkgs unstable: man-pages 6.20
  • 📜 the page's license: Linux-man-pages-copyleft
  • 💖 girlified by deepseek-ai/DeepSeek-V4.1-Flash on : a language model's rewrite of the original, under its terms