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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
.\"
.\" Japanese Version Copyright (c) 1997 HANATAKA Shinya
.\" all rights reserved.
.\" Translated Sun Feb 23 22:42:04 JST 1997
.\" by HANATAKA Shinya <hanataka@abyss.rim.or.jp>
.\"
.\"WORD: process ץ
.\"WORD: scheduling 塼
.\"WORD: policy
.\"WORD: implement
.\"WORD: parameter ѥ
.\"WORD: effective uid ¸桼ID
.\"WORD: euid ¸桼ID
.\"WORD: uid 桼ID
.\"WORD: superuser ѡ桼
.\"
.TH SCHED_SETPARAM 2 "1996-04-10" "Linux 1.3.81" "Linux Programmer's Manual"
.SH ̾
sched_setparam, sched_getparam \- 塼ѥȼԤʤ
.SH
.B #include <sched.h>
.sp
\fBint sched_setparam(pid_t \fIpid\fB, const struct sched_param *\fIp\fB);
.sp
\fBint sched_getparam(pid_t \fIpid\fB, struct sched_param *\fIp\fB);
.sp
.nf
.ta 4n
\fBstruct sched_param {
...
int \fIsched_priority\fB;
...
};
.ta
.fi
.SH
.B sched_setparam
\fIpid\fRǻꤵ줿ץΥ塼(scheduling policy)
Ϣ륹塼ѥ롣⤷ \fIpid\fR
ʤСƤӽФץΥѥꤵ롣
ѥ \fIp\fR β줿ˤ˰¸Ƥ롣
ߤΤȤ Linux Ǥϡʲ˻ĤΥ塼ˤݡ
Ƥ:
.IR SCHED_FIFO
.IR SCHED_RR
.IR SCHED_OTHER
.B sched_getparam
\fIpid\fR ǻꤵ줿ץΥ塼ѥ
롣⤷\fIpid\fRʤСƤӽФץΥѥ
롣
.B sched_setparam
ϥץΥˤˤ \fIp\fR å롣
ѥ \fIp->sched_priority\fR
\fBsched_get_priority_min\fR \fBsched_get_priority_max\fR ˤä
ͿϰϤˤʤФʤʤ
POSIX ƥǤ
.B sched_setparam
.B sched_getparam
<unistd.h>
.I _POSIX_PRIORITY_SCHEDULING
ƤˤΤѲǽǤ롣
.SH ֤
.BR sched_setparam
.BR sched_getparam
0 ֤
顼ξ \-1 ֤졢
.I errno
Ŭڤꤵ롣
.SH 顼
.TP
.B ESRCH
\fIpid\fR ID ˻ĥץĤʤä
.TP
.B EPERM
ƤӽФץŬڤʸäƤʤä
.BR sched_setparam
ƤӽФץϼ¸(effective)桼ID
.IR pid
ǻꤵ줿ץμ¸桼ID桼IDʤФʤʤ
ϥѡ桼ץǤʤФʤʤ
.TP
.B EINVAL
ѥ \fIp\fR ߤΥ塼ˤˤƤ̵̣Ǥ롣
.SH
POSIX.1b ( POSIX.4)
.SH Ϣ
.BR sched_setscheduler (2),
.BR sched_getscheduler (2),
.BR sched_get_priority_max (2),
.BR sched_get_priority_min (2),
.BR nice (2),
.BR setpriority (2),
.BR getpriority (2),
.PP
.BR sched_setscheduler (2)
ˤ Linux ΥˤĤƤεҤ롣
.PP
.I Programming for the real world \- POSIX.4
by Bill O. Gallmeister, O'Reilly & Associates, Inc., ISBN 1-56592-074-0
.br
.I IEEE Std 1003.1b-1993
(POSIX.1b standard)
.br
.I ISO/IEC 9945-1:1996
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