FreeBSD/Linux Kernel Cross Reference
sys/sys/resourcevar.h
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 8.4 (Berkeley) 1/9/95
34 * $FreeBSD$
35 */
36
37 #ifndef _SYS_RESOURCEVAR_H_
38 #define _SYS_RESOURCEVAR_H_
39
40 #include <sys/resource.h>
41
42 /*
43 * Kernel per-process accounting / statistics
44 * (not necessarily resident except when running).
45 */
46 struct pstats {
47 #define pstat_startzero p_ru
48 struct rusage p_ru; /* stats for this proc */
49 struct rusage p_cru; /* sum of stats for reaped children */
50 #define pstat_endzero pstat_startcopy
51
52 #define pstat_startcopy p_timer
53 struct itimerval p_timer[3]; /* virtual-time timers */
54
55 struct uprof { /* profile arguments */
56 caddr_t pr_base; /* buffer base */
57 u_long pr_size; /* buffer size */
58 u_long pr_off; /* pc offset */
59 u_long pr_scale; /* pc scaling */
60 u_long pr_addr; /* temp storage for addr until AST */
61 u_long pr_ticks; /* temp storage for ticks until AST */
62 } p_prof;
63 #define pstat_endcopy p_start
64 struct timeval p_start; /* starting time */
65 };
66
67 /*
68 * Kernel shareable process resource limits. Because this structure
69 * is moderately large but changes infrequently, it is normally
70 * shared copy-on-write after forks. If a group of processes
71 * ("threads") share modifications, the PL_SHAREMOD flag is set,
72 * and a copy must be made for the child of a new fork that isn't
73 * sharing modifications to the limits.
74 */
75 struct plimit {
76 struct rlimit pl_rlimit[RLIM_NLIMITS];
77 #define PL_SHAREMOD 0x01 /* modifications are shared */
78 int p_lflags;
79 int p_refcnt; /* number of references */
80 rlim_t p_cpulimit; /* current cpu limit in usec */
81 };
82
83 #ifdef KERNEL
84 struct proc;
85
86 void addupc_intr __P((struct proc *p, u_long pc, u_int ticks));
87 void addupc_task __P((struct proc *p, u_long pc, u_int ticks));
88 void calcru __P((struct proc *p, struct timeval *up, struct timeval *sp,
89 struct timeval *ip));
90 int fuswintr __P((void *base));
91 struct plimit
92 *limcopy __P((struct plimit *lim));
93 void ruadd __P((struct rusage *ru, struct rusage *ru2));
94 int suswintr __P((void *base, int word));
95 #endif
96
97 #endif /* !_SYS_RESOURCEVAR_H_ */
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