Annotation of sys/sys/resource.h, Revision 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_ */
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