95 lines
3.2 KiB
Groff
95 lines
3.2 KiB
Groff
.\" $NetBSD: nanosleep.2,v 1.1 1997/04/17 18:12:02 jtc Exp $
|
|
.\"
|
|
.\" Copyright (c) 1986, 1991, 1993
|
|
.\" The Regents of the University of California. All rights reserved.
|
|
.\"
|
|
.\" Redistribution and use in source and binary forms, with or without
|
|
.\" modification, are permitted provided that the following conditions
|
|
.\" are met:
|
|
.\" 1. Redistributions of source code must retain the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer.
|
|
.\" 2. Redistributions in binary form must reproduce the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer in the
|
|
.\" documentation and/or other materials provided with the distribution.
|
|
.\" 3. All advertising materials mentioning features or use of this software
|
|
.\" must display the following acknowledgement:
|
|
.\" This product includes software developed by the University of
|
|
.\" California, Berkeley and its contributors.
|
|
.\" 4. Neither the name of the University nor the names of its contributors
|
|
.\" may be used to endorse or promote products derived from this software
|
|
.\" without specific prior written permission.
|
|
.\"
|
|
.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
.\" SUCH DAMAGE.
|
|
.\"
|
|
.\" @(#)sleep.3 8.1 (Berkeley) 6/4/93
|
|
.\"
|
|
.Dd April 17, 1997
|
|
.Dt NANOSLEEP 2
|
|
.Os
|
|
.Sh NAME
|
|
.Nm nanosleep
|
|
.Sh SYNOPSIS
|
|
.Fd #include <time.h>
|
|
.Ft int
|
|
.Fn nanosleep "const struct timespec *rqtp" "struct timespec *rmtp"
|
|
.\" .Sh DESCRIPTION
|
|
.Sh RETURN VALUE
|
|
If the
|
|
.Fn nanosleep
|
|
function returns because the requested time has elapsed, the value
|
|
returned will be zero.
|
|
.Pp
|
|
If the
|
|
.Fn nanosleep
|
|
function returns due to the delivery of a signal, the value returned
|
|
will be the -1, and the global variable
|
|
.Va errno
|
|
will be set to indicate the interruption.
|
|
If
|
|
.Fa rmtp
|
|
is
|
|
.Pf non- Dv NULL ,
|
|
the timespec structure it references is updated to contain the
|
|
unslept amount (the request time minus the time actually slept).
|
|
.Sh ERRORS
|
|
If any of the following conditions occur, the
|
|
.Nm
|
|
function shall return -1 and set
|
|
.Va errno
|
|
to the corresponding value.
|
|
.Bl -tag -width Er
|
|
.It Bq Er EFAULT
|
|
Either
|
|
.Fa rqtp
|
|
or
|
|
.Fa rmtp
|
|
points to memory that is not a valid part of the process
|
|
address space.
|
|
.It Bq Er EINTR
|
|
.Nm
|
|
was interrupted by the delivery of a signal.
|
|
.It Bq Er EINVAL
|
|
.Fa rqtp
|
|
specified a nanosecond value less than zero or greater than 1000 million.
|
|
.It Bq Er ENOSYS
|
|
.Nm
|
|
is not supported by this implementation.
|
|
.El
|
|
.Sh SEE ALSO
|
|
.Xr sleep 3
|
|
.Sh STANDARDS
|
|
The
|
|
.Fn nanosleep
|
|
function conforms to
|
|
.St -p1003.1b-93 .
|