bsd/sys/resourcevar.h

   1 /*
   2  * Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. Please obtain a copy of the License at
  10  * http://www.opensource.apple.com/apsl/ and read it before using this
  11  * file.
  12  *
  13  * The Original Code and all software distributed under the License are
  14  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  15  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  16  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  18  * Please see the License for the specific language governing rights and
  19  * limitations under the License.
  20  *
  21  * @APPLE_LICENSE_HEADER_END@
  22  */
  23 /* Copyright (c) 1995, 1997 Apple Computer, Inc. All Rights Reserved */
  24 /*
  25  * Copyright (c) 1991, 1993
  26  *      The Regents of the University of California.  All rights reserved.
  27  *
  28  * Redistribution and use in source and binary forms, with or without
  29  * modification, are permitted provided that the following conditions
  30  * are met:
  31  * 1. Redistributions of source code must retain the above copyright
  32  *    notice, this list of conditions and the following disclaimer.
  33  * 2. Redistributions in binary form must reproduce the above copyright
  34  *    notice, this list of conditions and the following disclaimer in the
  35  *    documentation and/or other materials provided with the distribution.
  36  * 3. All advertising materials mentioning features or use of this software
  37  *    must display the following acknowledgement:
  38  *      This product includes software developed by the University of
  39  *      California, Berkeley and its contributors.
  40  * 4. Neither the name of the University nor the names of its contributors
  41  *    may be used to endorse or promote products derived from this software
  42  *    without specific prior written permission.
  43  *
  44  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  45  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  46  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  47  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  48  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  49  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  50  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  51  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  52  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  53  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  54  * SUCH DAMAGE.
  55  *
  56  *      @(#)resourcevar.h       8.4 (Berkeley) 1/9/95
  57  */
  58
  59 #ifndef _SYS_RESOURCEVAR_H_
  60 #define _SYS_RESOURCEVAR_H_
  61
  62 #include <sys/appleapiopts.h>
  63
  64 #ifdef __APPLE_API_PRIVATE
  65 /*
  66  * Kernel per-process accounting / statistics
  67  * (not necessarily resident except when running).
  68  */
  69 struct pstats {
  70 #define pstat_startzero p_ru
  71         struct  rusage p_ru;            /* stats for this proc */
  72         struct  rusage p_cru;           /* sum of stats for reaped children */
  73
  74         struct uprof {                  /* profile arguments */
  75                 struct uprof *pr_next;  /* multiple prof buffers allowed */
  76                 caddr_t pr_base;        /* buffer base */
  77                 u_long  pr_size;        /* buffer size */
  78                 u_long  pr_off;         /* pc offset */
  79                 u_long  pr_scale;       /* pc scaling */
  80                 u_long  pr_addr;        /* temp storage for addr until AST */
  81                 u_long  pr_ticks;       /* temp storage for ticks until AST */
  82         } p_prof;
  83 #define pstat_endzero   pstat_startcopy
  84
  85 #define pstat_startcopy p_timer
  86         struct  itimerval p_timer[3];   /* virtual-time timers */
  87 #define pstat_endcopy   p_start
  88         struct  timeval p_start;        /* starting time */
  89 #ifdef KERNEL
  90         struct user_uprof {                         /* profile arguments */
  91                 struct user_uprof *pr_next;  /* multiple prof buffers allowed */
  92                 user_addr_t         pr_base;    /* buffer base */
  93                 user_size_t         pr_size;    /* buffer size */
  94                 user_ulong_t    pr_off;         /* pc offset */
  95                 user_ulong_t    pr_scale;       /* pc scaling */
  96                 user_ulong_t    pr_addr;        /* temp storage for addr until AST */
  97                 user_ulong_t    pr_ticks;       /* temp storage for ticks until AST */
  98         } user_p_prof;
  99 #endif // KERNEL
 100 };
 101
 102 /*
 103  * Kernel shareable process resource limits.  Because this structure
 104  * is moderately large but changes infrequently, it is normally
 105  * shared copy-on-write after forks.  If a group of processes
 106  * ("threads") share modifications, the PL_SHAREMOD flag is set,
 107  * and a copy must be made for the child of a new fork that isn't
 108  * sharing modifications to the limits.
 109  */
 110 struct plimit {
 111         struct  rlimit pl_rlimit[RLIM_NLIMITS];
 112 #define PL_SHAREMOD     0x01            /* modifications are shared */
 113         int     p_lflags;
 114         int     p_refcnt;               /* number of references */
 115 };
 116
 117 #ifdef KERNEL
 118 /* add user profiling from AST */
 119 #define ADDUPROF(p)                                                     \
 120     addupc_task(p,                                                      \
 121                 (proc_is64bit((p)) ? (p)->p_stats->user_p_prof.pr_addr \
 122                                    : CAST_USER_ADDR_T((p)->p_stats->p_prof.pr_addr)), \
 123                 (proc_is64bit((p)) ? (p)->p_stats->user_p_prof.pr_ticks \
 124                                    : (p)->p_stats->p_prof.pr_ticks))
 125
 126 void     addupc_intr(struct proc *p, u_long pc, u_int ticks);
 127 void     addupc_task(struct proc *p, user_addr_t pc, u_int ticks);
 128 void     calcru(struct proc *p, struct timeval *up, struct timeval *sp,
 129             struct timeval *ip);
 130 void     ruadd(struct rusage *ru, struct rusage *ru2);
 131 struct plimit *limcopy(struct plimit *lim);
 132 #endif /* KERNEL */
 133
 134 #endif /* __APPLE_API_PRIVATE */
 135
 136 #endif  /* !_SYS_RESOURCEVAR_H_ */