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 #include <sys/queue.h>
42
43 /*
44 * Kernel per-process accounting / statistics
45 * (not necessarily resident except when running).
46 */
47 struct pstats {
48 #define pstat_startzero p_ru
49 struct rusage p_ru; /* stats for this proc */
50 struct rusage p_cru; /* sum of stats for reaped children */
51 struct itimerval p_timer[3]; /* virtual-time timers */
52 #define pstat_endzero pstat_startcopy
53
54 #define pstat_startcopy p_prof
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 /*
84 * Per uid resource consumption
85 */
86 struct uidinfo {
87 LIST_ENTRY(uidinfo) ui_hash;
88 rlim_t ui_sbsize; /* socket buffer space consumed */
89 long ui_proccnt; /* number of processes */
90 uid_t ui_uid; /* uid */
91 u_short ui_ref; /* reference count */
92 };
93
94 #ifdef _KERNEL
95 #define uihold(uip) (uip)->ui_ref++
96 struct proc;
97
98 void addupc_intr __P((struct proc *p, u_long pc, u_int ticks));
99 void addupc_task __P((struct proc *p, u_long pc, u_int ticks));
100 void calcru __P((struct proc *p, struct timeval *up, struct timeval *sp,
101 struct timeval *ip));
102 int chgproccnt __P((struct uidinfo *uip, int diff, int max));
103 int chgsbsize __P((struct uidinfo *uip, u_long *hiwat, u_long to,
104 rlim_t max));
105 int fuswintr __P((void *base));
106 struct plimit
107 *limcopy __P((struct plimit *lim));
108 void ruadd __P((struct rusage *ru, struct rusage *ru2));
109 int suswintr __P((void *base, int word));
110 struct uidinfo
111 *uifind __P((uid_t uid));
112 int uifree __P((struct uidinfo *uip));
113 void uihashinit __P((void));
114 #endif
115
116 #endif /* !_SYS_RESOURCEVAR_H_ */
Cache object: b10777472e13095a080f67c0b5215ff6
|