usr/src/sys/sys/resource.h

/*
 * Copyright (c) 1982, 1986 The Regents of the University of California.
 * All rights reserved.
 *
 * %sccs.include.redist.c%
 *
 *      @(#)resource.h  7.4 (Berkeley) %G%
 */

#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 RLIM_NLIMITS    6               /* number of resource limits */

#define RLIM_INFINITY   0x7fffffff

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

#endif  /* !_RESOURCE_H_ */