FreeBSD/Linux Kernel Cross Reference
sys/sys/resourcevar.h

     /*      $NetBSD: resourcevar.h,v 1.57 2018/05/07 21:03:45 christos Exp $        */
     
     /*
      * Copyright (c) 1991, 1993
      *      The Regents of the University of California.  All rights reserved.
      *
      * Redistribution and use in source and binary forms, with or without
      * modification, are permitted provided that the following conditions
      * are met:
     * 1. Redistributions of source code must retain the above copyright
     *    notice, this list of conditions and the following disclaimer.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     * 3. Neither the name of the University nor the names of its contributors
     *    may be used to endorse or promote products derived from this software
     *    without specific prior written permission.
     *
     * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     * SUCH DAMAGE.
     *
     *      @(#)resourcevar.h       8.4 (Berkeley) 1/9/95
     */
    
    #ifndef _SYS_RESOURCEVAR_H_
    #define _SYS_RESOURCEVAR_H_
    
    #if !defined(_KERNEL) && !defined(_KMEMUSER)
    #error "not supposed to be exposed to userland"
    #endif
    
    #include <sys/mutex.h>
    #include <sys/resource.h>
    
    /*
     * Kernel per-process accounting / statistics
     */
    struct uprof {                          /* profile arguments */
            char *  pr_base;                /* buffer base */
            size_t  pr_size;                /* buffer size */
            u_long  pr_off;                 /* pc offset */
            u_int   pr_scale;               /* pc scaling */
            u_long  pr_addr;                /* temp storage for addr until AST */
            u_long  pr_ticks;               /* temp storage for ticks until AST */
    };
    
    struct pstats {
    #define pstat_startzero p_ru
            struct  rusage p_ru;            /* stats for this proc */
            struct  rusage p_cru;           /* sum of stats for reaped children */
    #define pstat_endzero   pstat_startcopy
    
    #define pstat_startcopy p_timer
            struct  itimerspec p_timer[3];  /* virtual-time timers */
            struct  uprof p_prof;                   /* profile arguments */
    #define pstat_endcopy   p_start
            struct  timeval p_start;        /* starting time */
    };
    
    #ifdef _KERNEL
    
    /*
     * Process resource limits.  Since this structure is moderately large,
     * but changes infrequently, it is shared copy-on-write after forks.
     *
     * When a separate copy is created, then 'pl_writeable' is set to true,
     * and 'pl_sv_limit' is pointed to the old proc_t::p_limit structure.
     */
    struct plimit {
            struct rlimit   pl_rlimit[RLIM_NLIMITS];
            char *          pl_corename;
            size_t          pl_cnlen;
            u_int           pl_refcnt;
            bool            pl_writeable;
            kmutex_t        pl_lock;
            struct plimit * pl_sv_limit;
    };
    
    /* add user profiling from AST XXXSMP */
    #define ADDUPROF(l)                                                     \
            do {                                                            \
                    struct proc *_p = (l)->l_proc;                          \
                    addupc_task((l),                                        \
                        _p->p_stats->p_prof.pr_addr,                        \
                        _p->p_stats->p_prof.pr_ticks);                      \
                    _p->p_stats->p_prof.pr_ticks = 0;                       \
            } while (/* CONSTCOND */ 0)
    
    extern char defcorename[];
    
   extern int security_setidcore_dump;
   extern char security_setidcore_path[];
   extern uid_t security_setidcore_owner;
   extern gid_t security_setidcore_group;
   extern mode_t security_setidcore_mode;
   
   void    addupc_intr(struct lwp *, u_long);
   void    addupc_task(struct lwp *, u_long, u_int);
   void    calcru(struct proc *, struct timeval *, struct timeval *,
               struct timeval *, struct timeval *);
   
   struct plimit *lim_copy(struct plimit *);
   void    lim_addref(struct plimit *);
   void    lim_privatise(struct proc *);
   void    lim_setcorename(struct proc *, char *, size_t);
   void    lim_free(struct plimit *);
   
   void    resource_init(void);
   void    ruspace(struct proc *);
   void    ruadd(struct rusage *, struct rusage *);
   void    rulwps(proc_t *, struct rusage *);
   struct  pstats *pstatscopy(struct pstats *);
   void    pstatsfree(struct pstats *);
   extern rlim_t maxdmap;
   extern rlim_t maxsmap;
   
   int     getrusage1(struct proc *, int, struct rusage *);
   
   #endif
   
   #endif  /* !_SYS_RESOURCEVAR_H_ */

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