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Annotation of sys/sys/resource.h, Revision 1.1.1.1

1.1       nbrk        1: /*     $OpenBSD: resource.h,v 1.7 2003/12/11 23:02:30 millert Exp $    */
                      2: /*     $NetBSD: resource.h,v 1.14 1996/02/09 18:25:27 christos Exp $   */
                      3:
                      4: /*
                      5:  * Copyright (c) 1982, 1986, 1993
                      6:  *     The Regents of the University of California.  All rights reserved.
                      7:  *
                      8:  * Redistribution and use in source and binary forms, with or without
                      9:  * modification, are permitted provided that the following conditions
                     10:  * are met:
                     11:  * 1. Redistributions of source code must retain the above copyright
                     12:  *    notice, this list of conditions and the following disclaimer.
                     13:  * 2. Redistributions in binary form must reproduce the above copyright
                     14:  *    notice, this list of conditions and the following disclaimer in the
                     15:  *    documentation and/or other materials provided with the distribution.
                     16:  * 3. Neither the name of the University nor the names of its contributors
                     17:  *    may be used to endorse or promote products derived from this software
                     18:  *    without specific prior written permission.
                     19:  *
                     20:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
                     21:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
                     22:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
                     23:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
                     24:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
                     25:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
                     26:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     27:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
                     28:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
                     29:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
                     30:  * SUCH DAMAGE.
                     31:  *
                     32:  *     @(#)resource.h  8.2 (Berkeley) 1/4/94
                     33:  */
                     34:
                     35: #ifndef _SYS_RESOURCE_H_
                     36: #define        _SYS_RESOURCE_H_
                     37:
                     38: /*
                     39:  * Process priority specifications to get/setpriority.
                     40:  */
                     41: #define        PRIO_MIN        -20
                     42: #define        PRIO_MAX        20
                     43:
                     44: #define        PRIO_PROCESS    0
                     45: #define        PRIO_PGRP       1
                     46: #define        PRIO_USER       2
                     47:
                     48: /*
                     49:  * Resource utilization information.
                     50:  */
                     51:
                     52: #define        RUSAGE_SELF     0
                     53: #define        RUSAGE_CHILDREN -1
                     54:
                     55: struct rusage {
                     56:        struct timeval ru_utime;        /* user time used */
                     57:        struct timeval ru_stime;        /* system time used */
                     58:        long    ru_maxrss;              /* max resident set size */
                     59: #define        ru_first        ru_ixrss
                     60:        long    ru_ixrss;               /* integral shared text memory size */
                     61:        long    ru_idrss;               /* integral unshared data " */
                     62:        long    ru_isrss;               /* integral unshared stack " */
                     63:        long    ru_minflt;              /* page reclaims */
                     64:        long    ru_majflt;              /* page faults */
                     65:        long    ru_nswap;               /* swaps */
                     66:        long    ru_inblock;             /* block input operations */
                     67:        long    ru_oublock;             /* block output operations */
                     68:        long    ru_msgsnd;              /* messages sent */
                     69:        long    ru_msgrcv;              /* messages received */
                     70:        long    ru_nsignals;            /* signals received */
                     71:        long    ru_nvcsw;               /* voluntary context switches */
                     72:        long    ru_nivcsw;              /* involuntary " */
                     73: #define        ru_last         ru_nivcsw
                     74: };
                     75:
                     76: /*
                     77:  * Resource limits
                     78:  */
                     79: #define        RLIMIT_CPU      0               /* cpu time in milliseconds */
                     80: #define        RLIMIT_FSIZE    1               /* maximum file size */
                     81: #define        RLIMIT_DATA     2               /* data size */
                     82: #define        RLIMIT_STACK    3               /* stack size */
                     83: #define        RLIMIT_CORE     4               /* core file size */
                     84: #define        RLIMIT_RSS      5               /* resident set size */
                     85: #define        RLIMIT_MEMLOCK  6               /* locked-in-memory address space */
                     86: #define        RLIMIT_NPROC    7               /* number of processes */
                     87: #define        RLIMIT_NOFILE   8               /* number of open files */
                     88:
                     89: #define        RLIM_NLIMITS    9               /* number of resource limits */
                     90:
                     91: #define        RLIM_INFINITY   (((rlim_t)1 << 63) - 1)
                     92: #define        RLIM_SAVED_MAX  RLIM_INFINITY
                     93: #define        RLIM_SAVED_CUR  RLIM_INFINITY
                     94:
                     95: struct orlimit {
                     96:        int32_t rlim_cur;               /* current (soft) limit */
                     97:        int32_t rlim_max;               /* maximum value for rlim_cur */
                     98: };
                     99:
                    100: struct rlimit {
                    101:        rlim_t  rlim_cur;               /* current (soft) limit */
                    102:        rlim_t  rlim_max;               /* maximum value for rlim_cur */
                    103: };
                    104:
                    105: /* Load average structure. */
                    106: struct loadavg {
                    107:        fixpt_t ldavg[3];
                    108:        long    fscale;
                    109: };
                    110:
                    111: #ifdef _KERNEL
                    112: extern struct loadavg averunnable;
                    113: int    dosetrlimit(struct proc *, u_int, struct rlimit *);
                    114: int    donice(struct proc *, struct proc *, int);
                    115:
                    116: #else
                    117: #include <sys/cdefs.h>
                    118:
                    119: __BEGIN_DECLS
                    120: int    getpriority(int, id_t);
                    121: int    getrlimit(int, struct rlimit *);
                    122: int    getrusage(int, struct rusage *);
                    123: int    setpriority(int, id_t, int);
                    124: int    setrlimit(int, const struct rlimit *);
                    125: __END_DECLS
                    126:
                    127: #endif /* _KERNEL */
                    128: #endif /* !_SYS_RESOURCE_H_ */