1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
|
/* 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;
}
|
