2001-12-02 02:13:35 +00:00
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.\"
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.\" Copyright (C) 2001 Chad David <davidc@acns.ab.ca>. All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice(s), this list of conditions and the following disclaimer as
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.\" the first lines of this file unmodified other than the possible
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.\" addition of one or more copyright notices.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice(s), this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) ``AS IS'' AND ANY
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.\" EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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.\" WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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.\" DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) BE LIABLE FOR ANY
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.\" DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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.\" (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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.\" SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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.\" CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
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.\" DAMAGE.
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.\"
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.\" $FreeBSD$
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.\"
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.Dd November 21, 2001
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.Dt VFS_TIMESTAMP 9
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.Os
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.Sh NAME
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.Nm vfs_timestamp
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.Nd "generate current timestamp"
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.Sh SYNOPSIS
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.In sys/param.h
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2001-12-14 09:11:13 +00:00
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.In sys/vnode.h
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.Ft void
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2001-12-14 09:11:13 +00:00
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.Fn vfs_timestamp "struct timespec *tsp"
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2001-12-02 02:13:35 +00:00
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.Sh DESCRIPTION
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The
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2001-12-14 09:11:13 +00:00
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.Fn vfs_timestamp
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2001-12-02 02:13:35 +00:00
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function fills in
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.Fa tsp
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with the current time.
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.Pp
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The precision is based on the value of the
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2001-12-14 09:11:13 +00:00
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.Va vfs.timestamp_precision
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2001-12-02 02:13:35 +00:00
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sysctl variable:
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2001-12-14 09:11:13 +00:00
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.Pp
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.Bl -tag -width ".No \(>=3" -compact
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.It 0
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seconds only; nanoseconds are zeroed.
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.It 1
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seconds and nanoseconds, accurate within 1/HZ.
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.It 2
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2002-01-09 11:43:48 +00:00
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seconds and nanoseconds, truncated to microseconds.
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2001-12-14 09:11:13 +00:00
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.It \(>=3
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seconds and nanoseconds, maximum precision.
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.El
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2001-12-02 02:13:35 +00:00
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.Sh AUTHORS
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This man page was written by
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.An Chad David Aq davidc@acns.ab.ca .
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