usr/src/sys.386bsd/sys/resource.h

/*
 * Copyright (c) 1982, 1986 The Regents of the University of California.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *      This product includes software developed by the University of
 *      California, Berkeley and its contributors.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 *      @(#)resource.h  7.5 (Berkeley) 3/17/91
 */

#ifndef _RESOURCE_H_
#define _RESOURCE_H_

/*
 * Process priority specifications to get/setpriority.
 */
#define PRIO_MIN        -20
#define PRIO_MAX        20

#define PRIO_PROCESS    0
#define PRIO_PGRP       1
#define PRIO_USER       2

/*
 * Resource utilization information.
 */

#define RUSAGE_SELF     0
#define RUSAGE_CHILDREN -1

struct  rusage {
        struct timeval ru_utime;        /* user time used */
        struct timeval ru_stime;        /* system time used */
        long    ru_maxrss;              /* max resident set size */
#define ru_first        ru_ixrss
        long    ru_ixrss;               /* integral shared memory size */
        long    ru_idrss;               /* integral unshared data " */
        long    ru_isrss;               /* integral unshared stack " */
        long    ru_minflt;              /* page reclaims */
        long    ru_majflt;              /* page faults */
        long    ru_nswap;               /* swaps */
        long    ru_inblock;             /* block input operations */
        long    ru_oublock;             /* block output operations */
        long    ru_msgsnd;              /* messages sent */
        long    ru_msgrcv;              /* messages received */
        long    ru_nsignals;            /* signals received */
        long    ru_nvcsw;               /* voluntary context switches */
        long    ru_nivcsw;              /* involuntary " */
#define ru_last         ru_nivcsw
};

/*
 * Resource limits
 */
#define RLIMIT_CPU      0               /* cpu time in milliseconds */
#define RLIMIT_FSIZE    1               /* maximum file size */
#define RLIMIT_DATA     2               /* data size */
#define RLIMIT_STACK    3               /* stack size */
#define RLIMIT_CORE     4               /* core file size */
#define RLIMIT_RSS      5               /* resident set size */
#define RLIMIT_MEMLOCK  6               /* locked-in-memory address space */
#define RLIMIT_NPROC    7               /* number of processes */
#define RLIMIT_OFILE    8               /* number of open files */

#define RLIM_NLIMITS    9               /* number of resource limits */

#define RLIM_INFINITY   0x7fffffff

struct rlimit {
        long    rlim_cur;               /* current (soft) limit */
        long    rlim_max;               /* maximum value for rlim_cur */
};

#ifndef KERNEL
#include <sys/cdefs.h>

__BEGIN_DECLS
int     getpriority __P((int, int));
int     getrlimit __P((int, struct rlimit *));
int     getrusage __P((int, struct rusage *));
int     setpriority __P((int, int, int));
int     setrlimit __P((int, const struct rlimit *));
__END_DECLS

#endif  /* !KERNEL */
#endif  /* !_RESOURCE_H_ */