bsd/sys/resourcevar.h

   1 /*
   2  * Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
   7  *
   8  * This file contains Original Code and/or Modifications of Original Code
   9  * as defined in and that are subject to the Apple Public Source License
  10  * Version 2.0 (the 'License'). You may not use this file except in
  11  * compliance with the License. Please obtain a copy of the License at
  12  * http://www.opensource.apple.com/apsl/ and read it before using this
  13  * file.
  14  *
  15  * The Original Code and all software distributed under the License are
  16  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  17  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  18  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  20  * Please see the License for the specific language governing rights and
  21  * limitations under the License.
  22  *
  23  * @APPLE_LICENSE_HEADER_END@
  24  */
  25 /* Copyright (c) 1995, 1997 Apple Computer, Inc. All Rights Reserved */
  26 /*
  27  * Copyright (c) 1991, 1993
  28  *      The Regents of the University of California.  All rights reserved.
  29  *
  30  * Redistribution and use in source and binary forms, with or without
  31  * modification, are permitted provided that the following conditions
  32  * are met:
  33  * 1. Redistributions of source code must retain the above copyright
  34  *    notice, this list of conditions and the following disclaimer.
  35  * 2. Redistributions in binary form must reproduce the above copyright
  36  *    notice, this list of conditions and the following disclaimer in the
  37  *    documentation and/or other materials provided with the distribution.
  38  * 3. All advertising materials mentioning features or use of this software
  39  *    must display the following acknowledgement:
  40  *      This product includes software developed by the University of
  41  *      California, Berkeley and its contributors.
  42  * 4. Neither the name of the University nor the names of its contributors
  43  *    may be used to endorse or promote products derived from this software
  44  *    without specific prior written permission.
  45  *
  46  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  47  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  48  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  49  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  50  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  51  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  52  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  53  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  54  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  55  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  56  * SUCH DAMAGE.
  57  *
  58  *      @(#)resourcevar.h       8.4 (Berkeley) 1/9/95
  59  */
  60
  61 #ifndef _SYS_RESOURCEVAR_H_
  62 #define _SYS_RESOURCEVAR_H_
  63
  64 #include <sys/appleapiopts.h>
  65
  66 #ifdef __APPLE_API_PRIVATE
  67 /*
  68  * Kernel per-process accounting / statistics
  69  * (not necessarily resident except when running).
  70  */
  71 struct pstats {
  72 #define pstat_startzero p_ru
  73         struct  rusage p_ru;            /* stats for this proc */
  74         struct  rusage p_cru;           /* sum of stats for reaped children */
  75
  76         struct uprof {                  /* profile arguments */
  77                 struct uprof *pr_next;  /* multiple prof buffers allowed */
  78                 caddr_t pr_base;        /* buffer base */
  79                 u_long  pr_size;        /* buffer size */
  80                 u_long  pr_off;         /* pc offset */
  81                 u_long  pr_scale;       /* pc scaling */
  82                 u_long  pr_addr;        /* temp storage for addr until AST */
  83                 u_long  pr_ticks;       /* temp storage for ticks until AST */
  84         } p_prof;
  85 #define pstat_endzero   pstat_startcopy
  86
  87 #define pstat_startcopy p_timer
  88         struct  itimerval p_timer[3];   /* virtual-time timers */
  89 #define pstat_endcopy   p_start
  90         struct  timeval p_start;        /* starting time */
  91 };
  92
  93 /*
  94  * Kernel shareable process resource limits.  Because this structure
  95  * is moderately large but changes infrequently, it is normally
  96  * shared copy-on-write after forks.  If a group of processes
  97  * ("threads") share modifications, the PL_SHAREMOD flag is set,
  98  * and a copy must be made for the child of a new fork that isn't
  99  * sharing modifications to the limits.
 100  */
 101 struct plimit {
 102         struct  rlimit pl_rlimit[RLIM_NLIMITS];
 103 #define PL_SHAREMOD     0x01            /* modifications are shared */
 104         int     p_lflags;
 105         int     p_refcnt;               /* number of references */
 106 };
 107
 108 /* add user profiling from AST */
 109 #define ADDUPROF(p)                                                     \
 110         addupc_task(p,                                                  \
 111             (p)->p_stats->p_prof.pr_addr, (p)->p_stats->p_prof.pr_ticks)
 112
 113 #ifdef KERNEL
 114 void     addupc_intr __P((struct proc *p, u_long pc, u_int ticks));
 115 void     addupc_task __P((struct proc *p, u_long pc, u_int ticks));
 116 void     calcru __P((struct proc *p, struct timeval *up, struct timeval *sp,
 117             struct timeval *ip));
 118 void     ruadd __P((struct rusage *ru, struct rusage *ru2));
 119 struct plimit *limcopy __P((struct plimit *lim));
 120 #endif /* KERNEL */
 121
 122 #endif /* __APPLE_API_PRIVATE */
 123
 124 #endif  /* !_SYS_RESOURCEVAR_H_ */