2 * Copyright (c) 1991, 1993
3 * The Regents of the University of California. All rights reserved.
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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 1.3 2003/08/20 07:31:21 rob Exp $
38 #ifndef _SYS_RESOURCEVAR_H_
39 #define _SYS_RESOURCEVAR_H_
41 #include <sys/resource.h>
42 #include <sys/queue.h>
45 * Kernel per-process accounting / statistics
46 * (not necessarily resident except when running).
49 #define pstat_startzero p_ru
50 struct rusage p_ru; /* stats for this proc */
51 struct rusage p_cru; /* sum of stats for reaped children */
52 #define pstat_endzero pstat_startcopy
54 #define pstat_startcopy p_timer
55 struct itimerval p_timer[3]; /* virtual-time timers */
57 struct uprof { /* profile arguments */
58 caddr_t pr_base; /* buffer base */
59 u_long pr_size; /* buffer size */
60 u_long pr_off; /* pc offset */
61 u_long pr_scale; /* pc scaling */
62 u_long pr_addr; /* temp storage for addr until AST */
63 u_long pr_ticks; /* temp storage for ticks until AST */
65 #define pstat_endcopy p_start
66 struct timeval p_start; /* starting time */
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. If a group of processes
73 * ("threads") share modifications, the PL_SHAREMOD flag is set,
74 * and a copy must be made for the child of a new fork that isn't
75 * sharing modifications to the limits.
78 struct rlimit pl_rlimit[RLIM_NLIMITS];
79 #define PL_SHAREMOD 0x01 /* modifications are shared */
81 int p_refcnt; /* number of references */
82 rlim_t p_cpulimit; /* current cpu limit in usec */
86 * Per uid resource consumption
89 LIST_ENTRY(uidinfo) ui_hash;
90 rlim_t ui_sbsize; /* socket buffer space consumed */
91 long ui_proccnt; /* number of processes */
92 uid_t ui_uid; /* uid */
93 u_short ui_ref; /* reference count */
97 #define uihold(uip) (uip)->ui_ref++
100 void addupc_intr (struct proc *p, u_long pc, u_int ticks);
101 void addupc_task (struct proc *p, u_long pc, u_int ticks);
102 void calcru (struct proc *p, struct timeval *up, struct timeval *sp,
104 int chgproccnt (struct uidinfo *uip, int diff, int max);
105 int chgsbsize (struct uidinfo *uip, u_long *hiwat, u_long to,
107 int fuswintr (void *base);
109 *limcopy (struct plimit *lim);
110 void ruadd (struct rusage *ru, struct rusage *ru2);
111 int suswintr (void *base, int word);
114 int uifree (struct uidinfo *uip);
115 void uihashinit (void);
118 #endif /* !_SYS_RESOURCEVAR_H_ */