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vfs_timestamp.9 (87182) vfs_timestamp.9 (87857)
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

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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.\"
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

--- 10 unchanged lines hidden (view full) ---

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.\" $FreeBSD: head/share/man/man9/vfs_timestamp.9 87182 2001-12-02 02:13:35Z alfred $
27.\" $FreeBSD: head/share/man/man9/vfs_timestamp.9 87857 2001-12-14 09:11:13Z ru $
28.\"
29.Dd November 21, 2001
30.Dt VFS_TIMESTAMP 9
31.Os
32.Sh NAME
33.Nm vfs_timestamp
34.Nd "generate current timestamp"
35.Sh SYNOPSIS
36.In sys/param.h
28.\"
29.Dd November 21, 2001
30.Dt VFS_TIMESTAMP 9
31.Os
32.Sh NAME
33.Nm vfs_timestamp
34.Nd "generate current timestamp"
35.Sh SYNOPSIS
36.In sys/param.h
37.In sys/vnode.h
37.Ft void
38.Ft void
38.Fn vfs_timespec "struct timespec *tsp"
39.Fn vfs_timestamp "struct timespec *tsp"
39.Sh DESCRIPTION
40The
40.Sh DESCRIPTION
41The
41.Fn vfs_timespec
42.Fn vfs_timestamp
42function fills in
43.Fa tsp
44with the current time.
45.Pp
46The precision is based on the value of the
43function fills in
44.Fa tsp
45with the current time.
46.Pp
47The precision is based on the value of the
47.Dv vfs.timestamp_precision
48.Va vfs.timestamp_precision
48sysctl variable:
49sysctl variable:
49.Bd -literal
50 0 = seconds only; nanoseconds are zeroed.
51 1 = seconds and nanoseconds, accurate within 1/HZ.
52 2 = seconds and nanoseconds, trucated to microseconds.
53 >=3 = seconds and nanoseconds, maximum precision.
54.Ed
50.Pp
51.Bl -tag -width ".No \(>=3" -compact
52.It 0
53seconds only; nanoseconds are zeroed.
54.It 1
55seconds and nanoseconds, accurate within 1/HZ.
56.It 2
57seconds and nanoseconds, trucated to microseconds.
58.It \(>=3
59seconds and nanoseconds, maximum precision.
60.El
55.Sh AUTHORS
56This man page was written by
57.An Chad David Aq davidc@acns.ab.ca .
61.Sh AUTHORS
62This man page was written by
63.An Chad David Aq davidc@acns.ab.ca .