$FreeBSD: src/lib/libc/sys/nanosleep.2,v 1.8.2.4 2001/12/14 18:34:01 ru Exp $
$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)
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@(#)sleep.3 8.1 (Berkeley) 6/4/93
.Dd April 17, 1997 .Dt NANOSLEEP 2 .Os .Sh NAME .Nm nanosleep .Nd suspend thread execution for an interval measured in nanoseconds .Sh LIBRARY .Lb libc .Sh SYNOPSIS n time.h .Ft int .Fo nanosleep .Fa "const struct timespec *rqtp" .Fa "struct timespec *rmtp" .Fc .Sh DESCRIPTION The .Fn nanosleep function causes the calling thread to sleep for the amount of time specified in .Fa rqtp (the actual time slept may be longer, due to system latencies and possible limitations in the timer resolution of the hardware). An unmasked signal will cause .Fn nanosleep to terminate the sleep early, regardless of the .Dv SA_RESTART value on the interrupting signal. .Sh RETURN VALUES If .Fn nanosleep returns because the requested time has elapsed, the value returned will be zero.
$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 .Nd suspend thread execution for an interval measured in nanoseconds .Sh LIBRARY .Lb libc .Sh SYNOPSIS n time.h .Ft int .Fo nanosleep .Fa "const struct timespec *rqtp" .Fa "struct timespec *rmtp" .Fc .Sh DESCRIPTION The .Fn nanosleep function causes the calling thread to sleep for the amount of time specified in .Fa rqtp (the actual time slept may be longer, due to system latencies and possible limitations in the timer resolution of the hardware). An unmasked signal will cause .Fn nanosleep to terminate the sleep early, regardless of the .Dv SA_RESTART value on the interrupting signal. .Sh RETURN VALUES If .Fn nanosleep returns because the requested time has elapsed, the value returned will be zero.
p If .Fn nanosleep 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
f 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 The .Fn nanosleep call fails if: l -tag -width Er t Bq Er EINTR .Fn nanosleep was interrupted by the delivery of a signal. t Bq Er EINVAL .Fa rqtp specified a nanosecond value less than zero or greater than or equal to 1000 million. .El .Sh SEE ALSO .Xr sigsuspend 2 , .Xr sleep 3 .Sh STANDARDS The .Fn nanosleep function conforms to .St -p1003.1b-93 .