resourcevar.h revision 65495
11541Srgrimes/* 21541Srgrimes * Copyright (c) 1991, 1993 31541Srgrimes * The Regents of the University of California. All rights reserved. 41541Srgrimes * 51541Srgrimes * Redistribution and use in source and binary forms, with or without 61541Srgrimes * modification, are permitted provided that the following conditions 71541Srgrimes * are met: 81541Srgrimes * 1. Redistributions of source code must retain the above copyright 91541Srgrimes * notice, this list of conditions and the following disclaimer. 101541Srgrimes * 2. Redistributions in binary form must reproduce the above copyright 111541Srgrimes * notice, this list of conditions and the following disclaimer in the 121541Srgrimes * documentation and/or other materials provided with the distribution. 131541Srgrimes * 3. All advertising materials mentioning features or use of this software 141541Srgrimes * must display the following acknowledgement: 151541Srgrimes * This product includes software developed by the University of 161541Srgrimes * California, Berkeley and its contributors. 171541Srgrimes * 4. Neither the name of the University nor the names of its contributors 181541Srgrimes * may be used to endorse or promote products derived from this software 191541Srgrimes * without specific prior written permission. 201541Srgrimes * 211541Srgrimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 221541Srgrimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 231541Srgrimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 241541Srgrimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 251541Srgrimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 261541Srgrimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 271541Srgrimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 281541Srgrimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 291541Srgrimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 301541Srgrimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 311541Srgrimes * SUCH DAMAGE. 321541Srgrimes * 3314501Shsu * @(#)resourcevar.h 8.4 (Berkeley) 1/9/95 3450477Speter * $FreeBSD: head/sys/sys/resourcevar.h 65495 2000-09-05 22:11:13Z truckman $ 351541Srgrimes */ 361541Srgrimes 371541Srgrimes#ifndef _SYS_RESOURCEVAR_H_ 381541Srgrimes#define _SYS_RESOURCEVAR_H_ 391541Srgrimes 4034924Sbde#include <sys/resource.h> 4165495Struckman#include <sys/queue.h> 4234924Sbde 431541Srgrimes/* 441541Srgrimes * Kernel per-process accounting / statistics 451541Srgrimes * (not necessarily resident except when running). 461541Srgrimes */ 471541Srgrimesstruct pstats { 481541Srgrimes#define pstat_startzero p_ru 491541Srgrimes struct rusage p_ru; /* stats for this proc */ 501541Srgrimes struct rusage p_cru; /* sum of stats for reaped children */ 511541Srgrimes#define pstat_endzero pstat_startcopy 521541Srgrimes 531541Srgrimes#define pstat_startcopy p_timer 541541Srgrimes struct itimerval p_timer[3]; /* virtual-time timers */ 551541Srgrimes 561541Srgrimes struct uprof { /* profile arguments */ 571541Srgrimes caddr_t pr_base; /* buffer base */ 581541Srgrimes u_long pr_size; /* buffer size */ 591541Srgrimes u_long pr_off; /* pc offset */ 601541Srgrimes u_long pr_scale; /* pc scaling */ 611541Srgrimes u_long pr_addr; /* temp storage for addr until AST */ 621541Srgrimes u_long pr_ticks; /* temp storage for ticks until AST */ 631541Srgrimes } p_prof; 641541Srgrimes#define pstat_endcopy p_start 651541Srgrimes struct timeval p_start; /* starting time */ 661541Srgrimes}; 671541Srgrimes 681541Srgrimes/* 691541Srgrimes * Kernel shareable process resource limits. Because this structure 701541Srgrimes * is moderately large but changes infrequently, it is normally 711541Srgrimes * shared copy-on-write after forks. If a group of processes 721541Srgrimes * ("threads") share modifications, the PL_SHAREMOD flag is set, 731541Srgrimes * and a copy must be made for the child of a new fork that isn't 741541Srgrimes * sharing modifications to the limits. 751541Srgrimes */ 761541Srgrimesstruct plimit { 771541Srgrimes struct rlimit pl_rlimit[RLIM_NLIMITS]; 781541Srgrimes#define PL_SHAREMOD 0x01 /* modifications are shared */ 791541Srgrimes int p_lflags; 801541Srgrimes int p_refcnt; /* number of references */ 8136441Sphk rlim_t p_cpulimit; /* current cpu limit in usec */ 821541Srgrimes}; 831541Srgrimes 8465495Struckman/* 8565495Struckman * Per uid resource consumption 8665495Struckman */ 8765495Struckmanstruct uidinfo { 8865495Struckman LIST_ENTRY(uidinfo) ui_hash; 8965495Struckman rlim_t ui_sbsize; /* socket buffer space consumed */ 9065495Struckman long ui_proccnt; /* number of processes */ 9165495Struckman uid_t ui_uid; /* uid */ 9265495Struckman u_short ui_ref; /* reference count */ 9365495Struckman}; 9465495Struckman 9555205Speter#ifdef _KERNEL 9665495Struckman#define uihold(uip) (uip)->ui_ref++ 9734924Sbdestruct proc; 9834924Sbde 991541Srgrimesvoid addupc_intr __P((struct proc *p, u_long pc, u_int ticks)); 1001541Srgrimesvoid addupc_task __P((struct proc *p, u_long pc, u_int ticks)); 1014470Sbdevoid calcru __P((struct proc *p, struct timeval *up, struct timeval *sp, 10214501Shsu struct timeval *ip)); 10365495Struckmanint chgproccnt __P((struct uidinfo *uip, int diff, int max)); 10465495Struckmanint chgsbsize __P((struct uidinfo *uip, u_long *hiwat, u_long to, 10565495Struckman rlim_t max)); 1064470Sbdeint fuswintr __P((void *base)); 1071541Srgrimesstruct plimit 1081541Srgrimes *limcopy __P((struct plimit *lim)); 1094470Sbdevoid ruadd __P((struct rusage *ru, struct rusage *ru2)); 1104470Sbdeint suswintr __P((void *base, int word)); 11165495Struckmanstruct uidinfo 11265495Struckman *uifind __P((uid_t uid)); 11365495Struckmanint uifree __P((struct uidinfo *uip)); 11465495Struckmanvoid uihashinit __P((void)); 1151541Srgrimes#endif 1164470Sbde 1171541Srgrimes#endif /* !_SYS_RESOURCEVAR_H_ */ 118