home *** CD-ROM | disk | FTP | other *** search
- /* Copyright (C) 1994 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 <ansidecl.h>
- #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
- DEFUN(getpriority, (which, who),
- enum __priority_which which AND 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);
- }
-
- errno = EINVAL;
- return -1;
- }
-