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
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9 * notice, this list of conditions and the following disclaimer.
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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.
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18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
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33 * @(#)resourcevar.h 8.4 (Berkeley) 1/9/95
37 #ifndef _SYS_RESOURCEVAR_H_
38 #define _SYS_RESOURCEVAR_H_
40 #include <sys/resource.h>
41 #include <sys/queue.h>
43 #include <sys/_lock.h>
44 #include <sys/_mutex.h>
48 * Kernel per-process accounting / statistics
49 * (not necessarily resident except when running).
52 #define pstat_startzero p_ru
53 struct rusage p_ru; /* stats for this proc */
54 struct rusage p_cru; /* sum of stats for reaped children */
55 #define pstat_endzero pstat_startcopy
57 #define pstat_startcopy p_timer
58 struct itimerval p_timer[3]; /* virtual-time timers */
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_int pr_ticks; /* temp storage for ticks until AST */
68 #define pstat_endcopy p_start
69 struct timeval p_start; /* starting time */
73 * Kernel shareable process resource limits. Because this structure
74 * is moderately large but changes infrequently, it is normally
75 * shared copy-on-write after forks. If a group of processes
76 * ("threads") share modifications, the PL_SHAREMOD flag is set,
77 * and a copy must be made for the child of a new fork that isn't
78 * sharing modifications to the limits.
81 struct rlimit pl_rlimit[RLIM_NLIMITS];
82 #define PL_SHAREMOD 0x01 /* modifications are shared */
84 int p_refcnt; /* number of references */
85 rlim_t p_cpulimit; /* current cpu limit in usec */
91 * Per uid resource consumption
94 LIST_ENTRY(uidinfo) ui_hash;
95 rlim_t ui_sbsize; /* socket buffer space consumed */
96 long ui_proccnt; /* number of processes */
97 uid_t ui_uid; /* uid */
98 u_short ui_ref; /* reference count */
99 struct mtx *ui_mtxp; /* protect all counts/limits */
102 #define UIDINFO_LOCK(ui) mtx_lock((ui)->ui_mtxp)
103 #define UIDINFO_UNLOCK(ui) mtx_unlock((ui)->ui_mtxp)
109 void addupc_intr __P((struct kse *ke, uintptr_t pc, u_int ticks));
110 void addupc_task __P((struct kse *ke, uintptr_t pc, u_int ticks));
111 void calcru __P((struct proc *p, struct timeval *up, struct timeval *sp,
112 struct timeval *ip));
113 int chgproccnt __P((struct uidinfo *uip, int diff, int max));
114 int chgsbsize __P((struct uidinfo *uip, u_long *hiwat, u_long to,
116 int fuswintr __P((void *base));
118 *limcopy __P((struct plimit *lim));
119 void ruadd __P((struct rusage *ru, struct rusage *ru2));
120 int suswintr __P((void *base, int word));
122 *uifind __P((uid_t uid));
123 void uihold __P((struct uidinfo *uip));
124 void uifree __P((struct uidinfo *uip));
125 void uihashinit __P((void));
128 #endif /* !_SYS_RESOURCEVAR_H_ */