text: /*	$NetBSD: resourcevar.h,v 1.48 2009/01/11 02:45:55 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	NETBSD_SYS_RESOURCEVAR_H
  #define	NETBSD_SYS_RESOURCEVAR_H
  
  #include <sys/mutex.h>
  
  /*
   * Kernel per-process accounting / statistics
   */
  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 {			/* 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 */
  	} p_prof;
  #define	pstat_endcopy	p_start
  	struct	timeval p_start;	/* starting time */
  };
  
  /*
   * Kernel shareable process resource limits.  Because this structure
   * is moderately large but changes infrequently, it is normally
   * shared copy-on-write after forks.  If a group of processes
   * ("threads") share modifications, the PL_SHAREMOD flag is set,
   * and a copy must be made for the child of a new fork that isn't
   * sharing modifications to the limits.
   *
   * The PL_xxx flags are never cleared, once either is set p->p_limit
   * will never be changed again.
   */
  struct plimit {
  	struct	rlimit pl_rlimit[RLIM_NLIMITS];
  	char	*pl_corename;
  #define	PL_SHAREMOD	0x01		/* modifications are shared */
  #define	PL_WRITEABLE	0x02		/* private to this process */
  	int	pl_flags;
  	int	pl_refcnt;		/* number of references */
  	kmutex_t pl_lock;		/* mutex for pl_refcnt */
  	struct plimit *pl_sv_limit;	/* saved when PL_WRITEABLE set */
  };
  
  /* 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)
  
  #ifdef _KERNEL
  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 *lim);
  void	lim_addref(struct plimit *lim);
  void	lim_privatise(struct proc *p, bool set_shared);
  void	limfree(struct plimit *);
  
  void	resource_init(void);
  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;
  #endif
  #endif	/* !NETBSD_SYS_RESOURCEVAR_H */
  