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Diffstat (limited to 'lib/libc/sys/nanosleep.2')
| -rw-r--r-- | lib/libc/sys/nanosleep.2 | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/lib/libc/sys/nanosleep.2 b/lib/libc/sys/nanosleep.2 new file mode 100644 index 00000000000..5a1e175c9cc --- /dev/null +++ b/lib/libc/sys/nanosleep.2 @@ -0,0 +1,95 @@ +.\" $OpenBSD: nanosleep.2,v 1.1 1997/04/20 20:56:20 tholo Exp $ +.\" $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 . |