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/* Copyright (C) 1994,96,97,2000,02, 2004 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 Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <errno.h>
#include <sys/resource.h>
#include <sys/sysmp.h>
extern int __sysmp (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;
id_t 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;
}
libc_hidden_def (getpriority)
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