1.\" $NetBSD: timespec_get.3,v 1.2 2016/10/04 10:46:40 wiz Exp $ 2.\" 3.\" Copyright (c) 2016 The NetBSD Foundation, Inc. 4.\" All rights reserved. 5.\" 6.\" This code is derived from software contributed to The NetBSD Foundation 7.\" by Kamil Rytarowski. 8.\" 9.\" Redistribution and use in source and binary forms, with or without 10.\" modification, are permitted provided that the following conditions 11.\" are met: 12.\" 1. Redistributions of source code must retain the above copyright 13.\" notice, this list of conditions and the following disclaimer. 14.\" 2. Redistributions in binary form must reproduce the above copyright 15.\" notice, this list of conditions and the following disclaimer in the 16.\" documentation and/or other materials provided with the distribution. 17.\" 18.\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 19.\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 20.\" TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 21.\" PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 22.\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 23.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 24.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 25.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 26.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 27.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 28.\" POSSIBILITY OF SUCH DAMAGE. 29.\" 30.\" $FreeBSD$ 31.\" 32.Dd August 10, 2018 33.Dt TIMESPEC_GET 3 34.Os 35.Sh NAME 36.Nm timespec_get 37.Nd get current calendar time 38.Sh LIBRARY 39.Lb libc 40.Sh SYNOPSIS 41.In time.h 42.Ft int 43.Fn timespec_get "struct timespec *ts" "int base" 44.Sh DESCRIPTION 45The 46.Nm 47function sets the interval pointed to by 48.Fa ts 49to hold the current calendar time based on the specified time base in 50.Fa base . 51.Pp 52The base 53.Dv TIME_UTC 54returns the time since the epoch. 55This time is expressed in seconds and nanoseconds since midnight (0 hour), January 1, 1970. 56In 57.Fx , 58this corresponds to 59.Dv CLOCK_REALTIME . 60.Sh RETURN VALUES 61The 62.Nm 63function returns the passed value of 64.Fa base 65if successful, otherwise 66.Dv 0 67on failure. 68.Sh SEE ALSO 69.Xr clock_gettime 2 , 70.Xr gettimeofday 2 , 71.Xr time 3 72.Sh STANDARDS 73The 74.Nm 75function with a 76.Fa base 77of 78.Dv TIME_UTC 79conforms to 80.St -isoC-2011 . 81.Sh HISTORY 82This interface first appeared in 83.Fx 12 . 84.Sh AUTHORS 85.An Kamil Rytarowski Aq Mt kamil@NetBSD.org 86.An Warner Losh Aq Mt imp@FreeBSD.org 87