xref: /dflybsd-src/lib/libc/gen/posix_spawnattr_getschedparam.3 (revision c9c6988b3417c76f002af80950e0b3264917d3b1)

.\" Copyright (c) 2008 Ed Schouten <ed@FreeBSD.org>
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.\" Portions of this text are reprinted and reproduced in electronic form
.\" from IEEE Std 1003.1, 2004 Edition, Standard for Information Technology --
.\" Portable Operating System Interface (POSIX), The Open Group Base
.\" Specifications Issue 6, Copyright (C) 2001-2004 by the Institute of
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.\" $FreeBSD: src/lib/libc/gen/posix_spawnattr_getschedparam.3,v 1.1 2008/07/28 02:22:19 davidxu Exp $
.\"
.Dd February 22, 2018
.Dt POSIX_SPAWNATTR_GETSCHEDPARAM 3
.Os
.Sh NAME
.Nm posix_spawnattr_getschedparam ,
.Nm posix_spawnattr_setschedparam
.Nd "get and set the spawn-schedparam attribute of a spawn attributes object"
.Sh LIBRARY
.Lb libc
.Sh SYNOPSIS
.In spawn.h
.Ft int
.Fn posix_spawnattr_getschedparam "const posix_spawnattr_t *restrict attr" "struct sched_param *restrict schedparam"
.Ft int
.Fn posix_spawnattr_setschedparam "posix_spawnattr_t * restrict attr" "const struct sched_param *restrict schedparam"
.Sh DESCRIPTION
The
.Fn posix_spawnattr_getschedparam
function obtains the value of the spawn-schedparam attribute from the
attributes object referenced by
.Fa attr .
.Pp
The
.Fn posix_spawnattr_setschedparam
function sets the spawn-schedparam attribute in an initialized attributes
object referenced by
.Fa attr .
.Pp
The spawn-schedparam attribute represents the scheduling parameters to
be assigned to the new process image in a spawn operation (if
.Dv POSIX_SPAWN_SETSCHEDULER
or
.Dv POSIX_SPAWN_SETSCHEDPARAM
is set in the spawn-flags attribute).
The default value of this attribute is unspecified.
.Sh RETURN VALUES
The
.Fn posix_spawnattr_getschedparam
and
.Fn posix_spawnattr_setschedparam
functions return zero.
.Sh SEE ALSO
.Xr posix_spawn 3 ,
.Xr posix_spawnattr_destroy 3 ,
.Xr posix_spawnattr_getschedpolicy 3 ,
.Xr posix_spawnattr_init 3 ,
.Xr posix_spawnattr_setschedpolicy 3 ,
.Xr posix_spawnp 3
.Sh STANDARDS
The
.Fn posix_spawnattr_getschedparam
and
.Fn posix_spawnattr_setschedparam
functions conform to
.St -p1003.1-2001 .
.Sh HISTORY
The
.Fn posix_spawnattr_getschedparam
and
.Fn posix_spawnattr_setschedparam
functions first appeared in
.Fx 8.0 .
.Sh AUTHORS
.An \&Ed Schouten Aq Mt ed@FreeBSD.org