Annotation of kernel/bsd/sys/resourcevar.h, revision 1.1.1.1

1.1       root        1: /*
                      2:  * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
                      3:  *
                      4:  * @APPLE_LICENSE_HEADER_START@
                      5:  * 
                      6:  * Portions Copyright (c) 1999 Apple Computer, Inc.  All Rights
                      7:  * Reserved.  This file contains Original Code and/or Modifications of
                      8:  * Original Code as defined in and that are subject to the Apple Public
                      9:  * Source License Version 1.1 (the "License").  You may not use this file
                     10:  * except in compliance with the License.  Please obtain a copy of the
                     11:  * License at http://www.apple.com/publicsource and read it before using
                     12:  * this file.
                     13:  * 
                     14:  * The Original Code and all software distributed under the License are
                     15:  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
                     16:  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
                     17:  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
                     18:  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
                     19:  * License for the specific language governing rights and limitations
                     20:  * under the License.
                     21:  * 
                     22:  * @APPLE_LICENSE_HEADER_END@
                     23:  */
                     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: /*
                     65:  * Kernel per-process accounting / statistics
                     66:  * (not necessarily resident except when running).
                     67:  */
                     68: struct pstats {
                     69: #define        pstat_startzero p_ru
                     70:        struct  rusage p_ru;            /* stats for this proc */
                     71:        struct  rusage p_cru;           /* sum of stats for reaped children */
                     72: 
                     73:        struct uprof {                  /* profile arguments */
                     74:                struct uprof *pr_next;  /* multiple prof buffers allowed */
                     75:                caddr_t pr_base;        /* buffer base */
                     76:                u_long  pr_size;        /* buffer size */
                     77:                u_long  pr_off;         /* pc offset */
                     78:                u_long  pr_scale;       /* pc scaling */
                     79:                u_long  pr_addr;        /* temp storage for addr until AST */
                     80:                u_long  pr_ticks;       /* temp storage for ticks until AST */
                     81:        } p_prof;
                     82: #define        pstat_endzero   pstat_startcopy
                     83: 
                     84: #define        pstat_startcopy p_timer
                     85:        struct  itimerval p_timer[3];   /* virtual-time timers */
                     86: #define        pstat_endcopy   p_start
                     87:        struct  timeval p_start;        /* starting time */
                     88: };
                     89: 
                     90: /*
                     91:  * Kernel shareable process resource limits.  Because this structure
                     92:  * is moderately large but changes infrequently, it is normally
                     93:  * shared copy-on-write after forks.  If a group of processes
                     94:  * ("threads") share modifications, the PL_SHAREMOD flag is set,
                     95:  * and a copy must be made for the child of a new fork that isn't
                     96:  * sharing modifications to the limits.
                     97:  */
                     98: struct plimit {
                     99:        struct  rlimit pl_rlimit[RLIM_NLIMITS];
                    100: #define        PL_SHAREMOD     0x01            /* modifications are shared */
                    101:        int     p_lflags;
                    102:        int     p_refcnt;               /* number of references */
                    103: };
                    104: 
                    105: /* add user profiling from AST */
                    106: #define        ADDUPROF(p)                                                     \
                    107:        addupc_task(p,                                                  \
                    108:            (p)->p_stats->p_prof.pr_addr, (p)->p_stats->p_prof.pr_ticks)
                    109: 
                    110: #ifdef _KERNEL
                    111: void    addupc_intr __P((struct proc *p, u_long pc, u_int ticks));
                    112: void    addupc_task __P((struct proc *p, u_long pc, u_int ticks));
                    113: void    calcru __P((struct proc *p, struct timeval *up, struct timeval *sp,
                    114:            struct timeval *ip));
                    115: struct plimit
                    116:        *limcopy __P((struct plimit *lim));
                    117: void    ruadd __P((struct rusage *ru, struct rusage *ru2));
                    118: #endif
                    119: 
                    120: #endif /* !_SYS_RESOURCEVAR_H_ */

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