1 /* $OpenBSD: resourcevar.h,v 1.11 2007/03/15 10:22:30 art Exp $ */
2 /* $NetBSD: resourcevar.h,v 1.12 1995/11/22 23:01:53 cgd Exp $ */
3
4 /*
5 * Copyright (c) 1991, 1993
6 * The Regents of the University of California. All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. Neither the name of the University nor the names of its contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 *
32 * @(#)resourcevar.h 8.3 (Berkeley) 2/22/94
33 */
34
35 #ifndef _SYS_RESOURCEVAR_H_
36 #define _SYS_RESOURCEVAR_H_
37
38 #include <sys/timeout.h>
39
40 /*
41 * Kernel per-process accounting / statistics
42 * (not necessarily resident except when running).
43 */
44 struct 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 struct itimerval p_timer[3]; /* virtual-time timers */
49 #define pstat_endzero pstat_startcopy
50
51 #define pstat_startcopy p_prof
52 struct uprof { /* profile arguments */
53 caddr_t pr_base; /* buffer base */
54 size_t pr_size; /* buffer size */
55 u_long pr_off; /* pc offset */
56 u_int pr_scale; /* pc scaling */
57 u_long pr_addr; /* temp storage for addr until AST */
58 u_long pr_ticks; /* temp storage for ticks until AST */
59 } p_prof;
60 #define pstat_endcopy p_start
61 struct timeval p_start; /* starting time */
62 struct timeout p_virt_to; /* virtual itimer trampoline. */
63 struct timeout p_prof_to; /* prof itimer trampoline. */
64 };
65
66 /*
67 * Kernel shareable process resource limits. Because this structure
68 * is moderately large but changes infrequently, it is normally
69 * shared copy-on-write after forks. If a group of processes
70 * ("threads") share modifications, the PL_SHAREMOD flag is set,
71 * and a copy must be made for the child of a new fork that isn't
72 * sharing modifications to the limits.
73 */
74 struct plimit {
75 struct rlimit pl_rlimit[RLIM_NLIMITS];
76 #define PL_SHAREMOD 0x01 /* modifications are shared */
77 int p_lflags;
78 int p_refcnt; /* number of references */
79 };
80
81 /* add user profiling from AST */
82 #define ADDUPROF(p) \
83 do { \
84 atomic_clearbits_int(&(p)->p_flag, P_OWEUPC); \
85 addupc_task((p), (p)->p_stats->p_prof.pr_addr, \
86 (p)->p_stats->p_prof.pr_ticks); \
87 (p)->p_stats->p_prof.pr_ticks = 0; \
88 } while (0)
89
90 #ifdef _KERNEL
91 void addupc_intr(struct proc *p, u_long pc);
92 void addupc_task(struct proc *p, u_long pc, u_int ticks);
93 void calcru(struct proc *p, struct timeval *up, struct timeval *sp,
94 struct timeval *ip);
95 struct plimit *limcopy(struct plimit *lim);
96 void limfree(struct plimit *);
97
98 void ruadd(struct rusage *ru, struct rusage *ru2);
99
100 void virttimer_trampoline(void *);
101 void proftimer_trampoline(void *);
102 #endif
103 #endif /* !_SYS_RESOURCEVAR_H_ */