1.\" $NetBSD: pthread_getcpuclockid.3,v 1.3 2016/04/24 09:01:45 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 Christos Zoulas. 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.Dd April 23, 2016 31.Dt PTHREAD_GETCPUCLOCKID 3 32.Os 33.Sh NAME 34.Nm pthread_getcpuclockid 35.Nd retrieve the clockid of the given thread 36.Sh LIBRARY 37.Lb libc 38.Sh SYNOPSIS 39.In pthread.h 40.Ft int 41.Fn pthread_getcpuclockid "pthread_t thread" "clockid_t *clock_id" 42.Sh DESCRIPTION 43The 44.Fn pthread_getcpuclockid 45function retrieves the 46.Fa clock_id 47for the specified 48.Fa thread . 49.Pp 50The 51.Xr clock_gettime 2 52function can be used with the returned 53.Fa clock_id 54to retrieve LWP times. 55.Sh RETURN VALUES 56On success the 57.Fn pthread_getcpuclockid 58function returns 0, placing the requested 59.Fa clock_id 60in the argument. 61On error, the value \-1 is returned 62and the value of 63.Va errno 64is set to reflect what went wrong. 65.Sh ERRORS 66These functions fail if: 67.Bl -tag -width Er 68.It Bq Er ESRCH 69No thread with this id was found. 70.El 71.Sh SEE ALSO 72.Xr clock_getcpuclockid2 2 , 73.Xr clock_gettime 2 74.Sh STANDARDS 75The 76.Fn pthread_getcpuclockid 77function conforms to 78.St -p1003.1-2001 . 79extension. 80.Sh HISTORY 81The 82.Fn pthread_getcpuclockid 83function appeared in 84.Nx 8 . 85