1 /* Copyright (C) 1992, 1996, 1997, 2001, 2002, 2006
2 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <http://www.gnu.org/licenses/>. */
21 #include <sys/resource.h>
23 /* Increment the scheduling priority of the calling process by INCR.
24 The superuser may use a negative INCR to decrement the priority. */
32 /* -1 is a valid priority, so we use errno to check for an error. */
35 prio
= getpriority (PRIO_PROCESS
, 0);
44 result
= setpriority (PRIO_PROCESS
, 0, prio
+ incr
);
51 return getpriority (PRIO_PROCESS
, 0);