Annotation of sys/sys/resourcevar.h, Revision 1.1.1.1
1.1 nbrk 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_ */
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