2 * Copyright (c) 1991, 1993
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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.
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
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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
33 * @(#)resourcevar.h 8.4 (Berkeley) 1/9/95
34 * $FreeBSD: src/sys/sys/resourcevar.h,v 1.16.2.1 2000/09/07 19:13:55 truckman Exp $
35 * $DragonFly: src/sys/sys/resourcevar.h,v 1.16 2008/05/08 01:26:01 dillon Exp $
38 #ifndef _SYS_RESOURCEVAR_H_
39 #define _SYS_RESOURCEVAR_H_
42 #include <sys/types.h>
44 #ifndef _SYS_RESOURCE_H_
45 #include <sys/resource.h>
48 #include <sys/queue.h>
50 #ifndef _SYS_VARSYM_H_
51 #include <sys/varsym.h>
56 #ifndef _SYS_SPINLOCK_H_
57 #include <sys/spinlock.h>
60 struct uprof
{ /* profile arguments */
61 caddr_t pr_base
; /* buffer base */
62 u_long pr_size
; /* buffer size */
63 u_long pr_off
; /* pc offset */
64 u_long pr_scale
; /* pc scaling */
65 u_long pr_addr
; /* temp storage for addr until AST */
66 u_long pr_ticks
; /* temp storage for ticks until AST */
70 * Kernel shareable process resource limits. Because this structure
71 * is moderately large but changes infrequently, it is normally
72 * shared copy-on-write after forks.
74 * Threaded programs force p_exclusive (set it to 2) to prevent the
75 * proc->p_limit pointer from changing out from under threaded access.
78 struct rlimit pl_rlimit
[RLIM_NLIMITS
];
79 int p_refcnt
; /* number of references */
80 int p_exclusive
; /* exclusive to proc due to lwp's */
81 rlim_t p_cpulimit
; /* current cpu limit in usec */
82 struct spinlock p_spin
;
85 #define PLIMIT_TESTCPU_OK 0
86 #define PLIMIT_TESTCPU_XCPU 1
87 #define PLIMIT_TESTCPU_KILL 2
90 * Per uid resource consumption
93 LIST_ENTRY(uidinfo
) ui_hash
;
94 rlim_t ui_sbsize
; /* socket buffer space consumed */
95 long ui_proccnt
; /* number of processes */
96 uid_t ui_uid
; /* uid */
97 int ui_ref
; /* reference count */
98 int ui_posixlocks
; /* number of POSIX locks */
99 struct varsymset ui_varsymset
; /* variant symlinks */
107 void addupc_intr (struct proc
*p
, u_long pc
, u_int ticks
);
108 void addupc_task (struct proc
*p
, u_long pc
, u_int ticks
);
109 void calcru (struct lwp
*lp
, struct timeval
*up
, struct timeval
*sp
);
110 void calcru_proc (struct proc
*p
, struct rusage
*ru
);
111 int chgproccnt (struct uidinfo
*uip
, int diff
, int max
);
112 int chgsbsize (struct uidinfo
*uip
, u_long
*hiwat
, u_long to
, rlim_t max
);
113 void ruadd (struct rusage
*ru
, struct rusage
*ru2
);
114 struct uidinfo
*uifind (uid_t uid
);
115 void uihold (struct uidinfo
*uip
);
116 void uidrop (struct uidinfo
*uip
);
117 void uireplace (struct uidinfo
**puip
, struct uidinfo
*nuip
);
118 void uihashinit (void);
120 void plimit_init0(struct plimit
*);
121 struct plimit
*plimit_fork(struct proc
*);
122 void plimit_lwp_fork(struct proc
*);
123 int plimit_testcpulimit(struct plimit
*, u_int64_t
);
124 void plimit_modify(struct proc
*, int, struct rlimit
*);
125 void plimit_free(struct proc
*);
129 #endif /* !_SYS_RESOURCEVAR_H_ */