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.\" Hey Emacs! This file is -*- nroff -*- source.
.\"
.\" Copyright (C) Tom Bjorkholm & Markus Kuhn, 1996
.\"
.\" This is free documentation; you can redistribute it and/or
.\" modify it under the terms of the GNU General Public License as
.\" published by the Free Software Foundation; either version 2 of
.\" the License, or (at your option) any later version.
.\"
.\" The GNU General Public License's references to "object code"
.\" and "executables" are to be interpreted as the output of any
.\" document formatting or typesetting system, including
.\" intermediate and printed output.
.\"
.\" This manual is distributed in the hope that it will be useful,
.\" but WITHOUT ANY WARRANTY; without even the implied warranty of
.\" MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
.\" GNU General Public License for more details.
.\"
.\" You should have received a copy of the GNU General Public
.\" License along with this manual; if not, write to the Free
.\" Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111,
.\" USA.
.\"
.\" 1996-04-01 Tom Bjorkholm <tomb@mydata.se>
.\" First version written
.\" 1996-04-10 Markus Kuhn <mskuhn@cip.informatik.uni-erlangen.de>
.\" revision
.\" Modified 2004-05-27 by Michael Kerrisk <mtk.manpages@gmail.com>
.\"
.\" Japanese Version Copyright (c) 1997 HANATAKA Shinya
.\" all rights reserved.
.\" Translated 1997-02-23, HANATAKA Shinya <hanataka@abyss.rim.or.jp>
.\" Updated & Modified 2005-02-10, Yuichi SATO <ysato444@yahoo.co.jp>
.\" Updated & Modified 2005-10-10, Akihiro MOTOKI <amotoki@dd.iij4u.or.jp>
.\" Updated 2006-04-14, Akihiro MOTOKI, LDP v2.29
.\"
.\"WORD: process ץ
.\"WORD: scheduling 塼
.\"WORD: policy
.\"WORD: implement
.\"WORD: parameter ѥ
.\"WORD: effective user ID ¸桼ID
.\"
.TH SCHED_SETPARAM 2 2006-03-23 "Linux" "Linux Programmer's Manual"
.SH ̾
sched_setparam, sched_getparam \- 塼ѥȼԤʤ
.SH
.nf
.B #include <sched.h>
.sp
.BI "int sched_setparam(pid_t " pid ", const struct sched_param *" param );
.sp
.BI "int sched_getparam(pid_t " pid ", struct sched_param *" param );
.sp
.nf
.ta 4n
\fBstruct sched_param {
...
int \fIsched_priority\fB;
...
};
.fi
.SH
.BR sched_setparam ()
\fIpid\fP ǻꤵ줿ץΥ塼 (scheduling policy)
Ϣ륹塼ѥꤹ롣
\fIpid\fP 0 ʤСƤӽФΥץΥѥꤵ롣
\fIparam\fP βϡ
.I pid
ǻꤵ줿ץΥ塼ˤˤäưۤʤ롣
Linux ǥݡȤƤ륹塼ˤ
.BR sched_setscheduler (2)
ȤΤȡ
.BR sched_getparam ()
\fIpid\fP ǻꤵ줿ץΥ塼ѥ롣
\fIpid\fP 0 ʤСƤӽФΥץΥѥ롣
.BR sched_setparam ()
ϥץΥ塼ˤˤ \fIparam\fP å롣
\fIparam\->sched_priority\fP ͤ
.BR sched_get_priority_min (2)
.BR sched_get_priority_max (2)
ϰϤäƤʤФʤʤ
塼ͥ٤ˤ˴Ϣøȥ¤
˴ؤƤ
.BR sched_setscheduler (2)
ȤΤȡ
.BR sched_setparam ()
.BR sched_getparam ()
ѤǤ POSIX ƥǤϡ
.I <unistd.h>
.B _POSIX_PRIORITY_SCHEDULING
Ƥ롣
.SH ֤
.BR sched_setparam ()
.BR sched_getparam ()
0 ֤
顼ξ \-1 ֤졢
.I errno
Ŭڤꤵ롣
.SH 顼
.TP
.B EINVAL
\fIparam\fP ߤΥ塼ˤˤƤ
̵̣Ǥ롣
.TP
.B EPERM
ƤӽФΥץŬڤøäƤʤ
(Linux Ǥϡ
.B CAP_SYS_NICE
ѥӥƥäƤʤ)
.TP
.B ESRCH
\fIpid\fP ID ˻ĥץĤʤä
.SH
POSIX.1-2001.
.SH Ϣ
.BR getpriority (2),
.BR nice (2),
.BR sched_get_priority_max (2),
.BR sched_get_priority_min (2),
.BR sched_getaffinity (2),
.BR sched_getscheduler (2),
.BR sched_setaffinity (2),
.BR sched_setscheduler (2),
.BR setpriority (2),
.BR capabilities (7)
.PP
.I Programming for the real world \- POSIX.4
by Bill O. Gallmeister, O'Reilly & Associates, Inc., ISBN 1-56592-074-0
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