itimerspec(3type)

itimerspec3type

Interval for a timer with nanosecond precision

Usage

#include <time.h>

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

Library

Standard C library (libc)

Overview

Describes the initial expiration of a timer, and its interval, in seconds and nanoseconds.

Releases

3 releases since Debian 12 (Bookworm); the text changed 2 times.

  1. 12
  2. 13
  3. Arch

Standards

POSIX.1-2024.

History

POSIX.1-1996.

From man-pages 6.19-1 in Arch Linux 2026-11-01. Parsed by carta from the page's man source.