47 lines
1.6 KiB
C
47 lines
1.6 KiB
C
/* Copyright (C) 1994, 1996 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Library 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 C Library 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
|
|
Library General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Library General Public
|
|
License along with the GNU C Library; see the file COPYING.LIB. If
|
|
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
|
|
Cambridge, MA 02139, USA. */
|
|
|
|
#include <errno.h>
|
|
#include <sys/resource.h>
|
|
#include <sys/sysmp.h>
|
|
|
|
extern int __sysmp __P ((int, ...));
|
|
|
|
/* Return the highest priority of any process specified by WHICH and WHO
|
|
(see <sys/resource.h>); if WHO is zero, the current process, process group,
|
|
or user (as specified by WHO) is used. A lower priority number means higher
|
|
priority. Priorities range from PRIO_MIN to PRIO_MAX. */
|
|
int
|
|
getpriority (which, who)
|
|
enum __priority_which which;
|
|
int who;
|
|
{
|
|
switch (which)
|
|
{
|
|
case PRIO_PROCESS:
|
|
return __sysmp (MP_SCHED, MPTS_GTNICE_PROC, who);
|
|
case PRIO_PGRP:
|
|
return __sysmp (MP_SCHED, MPTS_GTNICE_PGRP, who);
|
|
case PRIO_USER:
|
|
return __sysmp (MP_SCHED, MPTS_GTNICE_USER, who);
|
|
}
|
|
|
|
__set_errno (EINVAL);
|
|
return -1;
|
|
}
|