1.\" 2.\" Copyright (C) 2001 Chad David <davidc@acns.ab.ca>. All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice(s), this list of conditions and the following disclaimer as 9.\" the first lines of this file unmodified other than the possible 10.\" addition of one or more copyright notices. 11.\" 2. Redistributions in binary form must reproduce the above copyright 12.\" notice(s), this list of conditions and the following disclaimer in the 13.\" documentation and/or other materials provided with the distribution. 14.\" 15.\" THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) ``AS IS'' AND ANY 16.\" EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 17.\" WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 18.\" DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) BE LIABLE FOR ANY 19.\" DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 20.\" (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 21.\" SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 22.\" CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH 25.\" DAMAGE. 26.\" 27.Dd November 21, 2001 28.Dt VFS_TIMESTAMP 9 29.Os 30.Sh NAME 31.Nm vfs_timestamp 32.Nd "generate current timestamp" 33.Sh SYNOPSIS 34.In sys/param.h 35.In sys/vnode.h 36.Ft void 37.Fn vfs_timestamp "struct timespec *tsp" 38.Sh DESCRIPTION 39The 40.Fn vfs_timestamp 41function fills in 42.Fa tsp 43with the current time. 44.Pp 45The precision is based on the value of the 46.Va vfs.timestamp_precision 47sysctl variable: 48.Pp 49.Bl -tag -width ".No \(>=3" -compact 50.It 0 51seconds only; nanoseconds are zeroed. 52.It 1 53seconds and nanoseconds, accurate within 1/HZ. 54.It 2 55seconds and nanoseconds, truncated to microseconds. 56.It \(>=3 57seconds and nanoseconds, maximum precision. 58.El 59.Sh AUTHORS 60This manual page was written by 61.An Chad David Aq Mt davidc@acns.ab.ca . 62