2 * Copyright (c) 1991, 1993
3 * The Regents of the University of California. All rights reserved.
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15 * This product includes software developed by the University of
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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 1.10 2004/06/20 22:29:10 hmp Exp $
38 #ifndef _SYS_RESOURCEVAR_H_
39 #define _SYS_RESOURCEVAR_H_
41 #include <sys/resource.h>
42 #include <sys/queue.h>
44 #ifndef _SYS_VARSYM_H_
45 #include <sys/varsym.h>
49 * Kernel per-process accounting / statistics
50 * (not necessarily resident except when running).
53 struct rusage p_ru; /* stats for this proc */
54 struct rusage p_cru; /* sum of stats for reaped children */
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 */
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.
76 struct rlimit pl_rlimit[RLIM_NLIMITS];
77 #define PL_SHAREMOD 0x01 /* modifications are shared */
79 int p_refcnt; /* number of references */
80 rlim_t p_cpulimit; /* current cpu limit in usec */
84 * Per uid resource consumption
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 int ui_ref; /* reference count */
92 int ui_posixlocks; /* number of POSIX locks */
93 struct varsymset ui_varsymset; /* variant symlinks */
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, rlim_t max);
106 int fuswintr (void *base);
107 struct plimit *limcopy (struct plimit *lim);
108 void ruadd (struct rusage *ru, struct rusage *ru2);
109 int suswintr (void *base, int word);
110 struct uidinfo *uifind (uid_t uid);
111 void uihold (struct uidinfo *uip);
112 void uidrop (struct uidinfo *uip);
113 void uireplace (struct uidinfo **puip, struct uidinfo *nuip);
114 void uihashinit (void);
117 #endif /* !_SYS_RESOURCEVAR_H_ */