resourcevar.h revision 3438 
1/*
2 * Copyright (c) 1991, 1993
3 *	The Regents of the University of California.  All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 *    must display the following acknowledgement:
15 *	This product includes software developed by the University of
16 *	California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 *    may be used to endorse or promote products derived from this software
19 *    without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 *
33 *	@(#)resourcevar.h	8.3 (Berkeley) 2/22/94
34 * $Id: resourcevar.h,v 1.3 1994/10/02 17:24:53 phk Exp $
35 */
36
37#ifndef	_SYS_RESOURCEVAR_H_
38#define	_SYS_RESOURCEVAR_H_
39
40/*
41 * Kernel per-process accounting / statistics
42 * (not necessarily resident except when running).
43 */
44struct pstats {
45#define	pstat_startzero	p_ru
46	struct	rusage p_ru;		/* stats for this proc */
47	struct	rusage p_cru;		/* sum of stats for reaped children */
48#define	pstat_endzero	pstat_startcopy
49
50#define	pstat_startcopy	p_timer
51	struct	itimerval p_timer[3];	/* virtual-time timers */
52
53	struct uprof {			/* profile arguments */
54		caddr_t	pr_base;	/* buffer base */
55		u_long	pr_size;	/* buffer size */
56		u_long	pr_off;		/* pc offset */
57		u_long	pr_scale;	/* pc scaling */
58		u_long	pr_addr;	/* temp storage for addr until AST */
59		u_long	pr_ticks;	/* temp storage for ticks until AST */
60	} p_prof;
61#define	pstat_endcopy	p_start
62	struct	timeval p_start;	/* starting time */
63};
64
65/*
66 * Kernel shareable process resource limits.  Because this structure
67 * is moderately large but changes infrequently, it is normally
68 * shared copy-on-write after forks.  If a group of processes
69 * ("threads") share modifications, the PL_SHAREMOD flag is set,
70 * and a copy must be made for the child of a new fork that isn't
71 * sharing modifications to the limits.
72 */
73struct plimit {
74	struct	rlimit pl_rlimit[RLIM_NLIMITS];
75#define	PL_SHAREMOD	0x01		/* modifications are shared */
76	int	p_lflags;
77	int	p_refcnt;		/* number of references */
78};
79
80/* add user profiling from AST */
81#define	ADDUPROF(p)							\
82	addupc_task(p,							\
83	    (p)->p_stats->p_prof.pr_addr, (p)->p_stats->p_prof.pr_ticks)
84
85#ifdef KERNEL
86void	 addupc_intr __P((struct proc *p, u_long pc, u_int ticks));
87void	 addupc_task __P((struct proc *p, u_long pc, u_int ticks));
88int	 addupc __P((int, struct uprof *, int));
89struct plimit
90	*limcopy __P((struct plimit *lim));
91void	calcru __P((struct proc *p,struct timeval *up,struct timeval *sp,struct timeval *ip));
92#endif
93#endif	/* !_SYS_RESOURCEVAR_H_ */
94