timespec_get.3 (fa9896e082a1046ff4fbc75fcba4d18d1f2efc19) timespec_get.3 (9b5d724cad10087e34165199e55f15f2df744ed5)
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.\"

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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.\"
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.\"

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

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 August 10, 2018
30.Dd August 21, 2023
31.Dt TIMESPEC_GET 3
32.Os
33.Sh NAME
34.Nm timespec_get
35.Nd get current calendar time
36.Sh LIBRARY
37.Lb libc
38.Sh SYNOPSIS

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50The base
51.Dv TIME_UTC
52returns the time since the epoch.
53This time is expressed in seconds and nanoseconds since midnight (0 hour), January 1, 1970.
54In
55.Fx ,
56this corresponds to
57.Dv CLOCK_REALTIME .
31.Dt TIMESPEC_GET 3
32.Os
33.Sh NAME
34.Nm timespec_get
35.Nd get current calendar time
36.Sh LIBRARY
37.Lb libc
38.Sh SYNOPSIS

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50The base
51.Dv TIME_UTC
52returns the time since the epoch.
53This time is expressed in seconds and nanoseconds since midnight (0 hour), January 1, 1970.
54In
55.Fx ,
56this corresponds to
57.Dv CLOCK_REALTIME .
58.Pp
59The base
60.Dv TIME_MONOTONIC
61returns a monotonically-increasing time since an unspecified point in the past.
62In
63.Fx ,
64this corresponds to
65.Dv CLOCK_MONOTONIC .
58.Sh RETURN VALUES
59The
60.Nm
61function returns the passed value of
62.Fa base
63if successful, otherwise
64.Dv 0
65on failure.
66.Sh SEE ALSO
67.Xr clock_gettime 2 ,
68.Xr gettimeofday 2 ,
66.Sh RETURN VALUES
67The
68.Nm
69function returns the passed value of
70.Fa base
71if successful, otherwise
72.Dv 0
73on failure.
74.Sh SEE ALSO
75.Xr clock_gettime 2 ,
76.Xr gettimeofday 2 ,
69.Xr time 3
77.Xr time 3 ,
78.Xr timespec_getres 3
70.Sh STANDARDS
71The
72.Nm
73function with a
74.Fa base
75of
76.Dv TIME_UTC
77conforms to
78.St -isoC-2011 .
79.Sh STANDARDS
80The
81.Nm
82function with a
83.Fa base
84of
85.Dv TIME_UTC
86conforms to
87.St -isoC-2011 .
88.\" The
89.\" .Dv TIME_MONOTONIC
90.\" base conforms to
91.\" -isoC-2023 .
79.Sh HISTORY
80This interface first appeared in
81.Fx 12 .
82.Sh AUTHORS
83.An Kamil Rytarowski Aq Mt kamil@NetBSD.org
84.An Warner Losh Aq Mt imp@FreeBSD.org
92.Sh HISTORY
93This interface first appeared in
94.Fx 12 .
95.Sh AUTHORS
96.An Kamil Rytarowski Aq Mt kamil@NetBSD.org
97.An Warner Losh Aq Mt imp@FreeBSD.org