bsd/sys/resourcevar.h

   1 /*
   2  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * The contents of this file constitute Original Code as defined in and
   7  * are subject to the Apple Public Source License Version 1.1 (the
   8  * "License").  You may not use this file except in compliance with the
   9  * License.  Please obtain a copy of the License at
  10  * http://www.apple.com/publicsource and read it before using this file.
  11  *
  12  * This Original Code and all software distributed under the License are
  13  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  14  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  15  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
  17  * License for the specific language governing rights and limitations
  18  * under the License.
  19  *
  20  * @APPLE_LICENSE_HEADER_END@
  21  */
  22 /* Copyright (c) 1995, 1997 Apple Computer, Inc. All Rights Reserved */
  23 /*
  24  * Copyright (c) 1991, 1993
  25  *      The Regents of the University of California.  All rights reserved.
  26  *
  27  * Redistribution and use in source and binary forms, with or without
  28  * modification, are permitted provided that the following conditions
  29  * are met:
  30  * 1. Redistributions of source code must retain the above copyright
  31  *    notice, this list of conditions and the following disclaimer.
  32  * 2. Redistributions in binary form must reproduce the above copyright
  33  *    notice, this list of conditions and the following disclaimer in the
  34  *    documentation and/or other materials provided with the distribution.
  35  * 3. All advertising materials mentioning features or use of this software
  36  *    must display the following acknowledgement:
  37  *      This product includes software developed by the University of
  38  *      California, Berkeley and its contributors.
  39  * 4. Neither the name of the University nor the names of its contributors
  40  *    may be used to endorse or promote products derived from this software
  41  *    without specific prior written permission.
  42  *
  43  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  44  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  45  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  46  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  47  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  48  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  49  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  50  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  51  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  52  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  53  * SUCH DAMAGE.
  54  *
  55  *      @(#)resourcevar.h       8.4 (Berkeley) 1/9/95
  56  */
  57
  58 #ifndef _SYS_RESOURCEVAR_H_
  59 #define _SYS_RESOURCEVAR_H_
  60
  61 /*
  62  * Kernel per-process accounting / statistics
  63  * (not necessarily resident except when running).
  64  */
  65 struct pstats {
  66 #define pstat_startzero p_ru
  67         struct  rusage p_ru;            /* stats for this proc */
  68         struct  rusage p_cru;           /* sum of stats for reaped children */
  69
  70         struct uprof {                  /* profile arguments */
  71                 struct uprof *pr_next;  /* multiple prof buffers allowed */
  72                 caddr_t pr_base;        /* buffer base */
  73                 u_long  pr_size;        /* buffer size */
  74                 u_long  pr_off;         /* pc offset */
  75                 u_long  pr_scale;       /* pc scaling */
  76                 u_long  pr_addr;        /* temp storage for addr until AST */
  77                 u_long  pr_ticks;       /* temp storage for ticks until AST */
  78         } p_prof;
  79 #define pstat_endzero   pstat_startcopy
  80
  81 #define pstat_startcopy p_timer
  82         struct  itimerval p_timer[3];   /* virtual-time timers */
  83 #define pstat_endcopy   p_start
  84         struct  timeval p_start;        /* starting time */
  85 };
  86
  87 /*
  88  * Kernel shareable process resource limits.  Because this structure
  89  * is moderately large but changes infrequently, it is normally
  90  * shared copy-on-write after forks.  If a group of processes
  91  * ("threads") share modifications, the PL_SHAREMOD flag is set,
  92  * and a copy must be made for the child of a new fork that isn't
  93  * sharing modifications to the limits.
  94  */
  95 struct plimit {
  96         struct  rlimit pl_rlimit[RLIM_NLIMITS];
  97 #define PL_SHAREMOD     0x01            /* modifications are shared */
  98         int     p_lflags;
  99         int     p_refcnt;               /* number of references */
 100 };
 101
 102 /* add user profiling from AST */
 103 #define ADDUPROF(p)                                                     \
 104         addupc_task(p,                                                  \
 105             (p)->p_stats->p_prof.pr_addr, (p)->p_stats->p_prof.pr_ticks)
 106
 107 #ifdef KERNEL
 108 void     addupc_intr __P((struct proc *p, u_long pc, u_int ticks));
 109 void     addupc_task __P((struct proc *p, u_long pc, u_int ticks));
 110 void     calcru __P((struct proc *p, struct timeval *up, struct timeval *sp,
 111             struct timeval *ip));
 112 struct plimit
 113         *limcopy __P((struct plimit *lim));
 114 void     ruadd __P((struct rusage *ru, struct rusage *ru2));
 115 #endif
 116
 117 #endif  /* !_SYS_RESOURCEVAR_H_ */