resourcevar.h revision 139825
1139825Simp/*- 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 * 4. Neither the name of the University nor the names of its contributors 141541Srgrimes * may be used to endorse or promote products derived from this software 151541Srgrimes * without specific prior written permission. 161541Srgrimes * 171541Srgrimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 181541Srgrimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 191541Srgrimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 201541Srgrimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 211541Srgrimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 221541Srgrimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 231541Srgrimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 241541Srgrimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 251541Srgrimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 261541Srgrimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 271541Srgrimes * SUCH DAMAGE. 281541Srgrimes * 2914501Shsu * @(#)resourcevar.h 8.4 (Berkeley) 1/9/95 3050477Speter * $FreeBSD: head/sys/sys/resourcevar.h 139825 2005-01-07 02:29:27Z imp $ 311541Srgrimes */ 321541Srgrimes 331541Srgrimes#ifndef _SYS_RESOURCEVAR_H_ 341541Srgrimes#define _SYS_RESOURCEVAR_H_ 351541Srgrimes 3634924Sbde#include <sys/resource.h> 3765495Struckman#include <sys/queue.h> 3876166Smarkm#ifdef _KERNEL 3976166Smarkm#include <sys/_lock.h> 4076166Smarkm#include <sys/_mutex.h> 4176166Smarkm#endif 4234924Sbde 431541Srgrimes/* 441541Srgrimes * Kernel per-process accounting / statistics 451541Srgrimes * (not necessarily resident except when running). 46131437Sjhb * 47131437Sjhb * Locking key: 48131437Sjhb * b - created at fork, never changes 49131437Sjhb * c - locked by proc mtx 50131437Sjhb * j - locked by sched_lock mtx 51131437Sjhb * k - only accessed by curthread 521541Srgrimes */ 531541Srgrimesstruct pstats { 541541Srgrimes#define pstat_startzero p_ru 55131437Sjhb struct rusage p_ru; /* Stats for this process. */ 56131437Sjhb struct rusage p_cru; /* Stats for reaped children. */ 57131437Sjhb struct itimerval p_timer[3]; /* (j) Virtual-time timers. */ 581541Srgrimes#define pstat_endzero pstat_startcopy 591541Srgrimes 60121636Sjhb#define pstat_startcopy p_prof 61131437Sjhb struct uprof { /* Profile arguments. */ 62131437Sjhb caddr_t pr_base; /* (c + j) Buffer base. */ 63131437Sjhb u_long pr_size; /* (c + j) Buffer size. */ 64131437Sjhb u_long pr_off; /* (c + j) PC offset. */ 65131437Sjhb u_long pr_scale; /* (c + j) PC scaling. */ 661541Srgrimes } p_prof; 671541Srgrimes#define pstat_endcopy p_start 68131437Sjhb struct timeval p_start; /* (b) Starting time. */ 691541Srgrimes}; 701541Srgrimes 71125525Sjhb#ifdef _KERNEL 72125525Sjhb 731541Srgrimes/* 741541Srgrimes * Kernel shareable process resource limits. Because this structure 751541Srgrimes * is moderately large but changes infrequently, it is normally 76111163Stjr * shared copy-on-write after forks. 771541Srgrimes */ 781541Srgrimesstruct plimit { 791541Srgrimes struct rlimit pl_rlimit[RLIM_NLIMITS]; 80125454Sjhb int pl_refcnt; /* number of references */ 81125525Sjhb struct mtx *pl_mtx; 821541Srgrimes}; 831541Srgrimes 84125525Sjhb#define LIM_LOCK(lim) mtx_lock((lim)->pl_mtx) 85125525Sjhb#define LIM_UNLOCK(lim) mtx_unlock((lim)->pl_mtx) 86125525Sjhb#define LIM_LOCK_ASSERT(lim, f) mtx_assert((lim)->pl_mtx, (f)) 8769403Salfred 88133125Srwatson/*- 8965495Struckman * Per uid resource consumption 90133125Srwatson * 91133125Srwatson * Locking guide: 92133125Srwatson * (a) Constant from inception 93133125Srwatson * (b) Locked by ui_mtxp 94133125Srwatson * (c) Locked by global uihashtbl_mtx 9565495Struckman */ 9665495Struckmanstruct uidinfo { 97133125Srwatson LIST_ENTRY(uidinfo) ui_hash; /* (c) hash chain of uidinfos */ 98133125Srwatson rlim_t ui_sbsize; /* (b) socket buffer space consumed */ 99133125Srwatson long ui_proccnt; /* (b) number of processes */ 100133125Srwatson uid_t ui_uid; /* (a) uid */ 101133125Srwatson u_int ui_ref; /* (b) reference count */ 102125495Sjhb struct mtx *ui_mtxp; /* protect all counts/limits */ 10365495Struckman}; 10465495Struckman 10591342Salfred#define UIDINFO_LOCK(ui) mtx_lock((ui)->ui_mtxp) 10691342Salfred#define UIDINFO_UNLOCK(ui) mtx_unlock((ui)->ui_mtxp) 10789594Salfred 108125523Sjhbstruct proc; 109136152Sjhbstruct rusage_ext; 11083366Sjulianstruct thread; 11134924Sbde 112111032Sjulianvoid addupc_intr(struct thread *td, uintptr_t pc, u_int ticks); 113111032Sjulianvoid addupc_task(struct thread *td, uintptr_t pc, u_int ticks); 114136152Sjhbvoid calccru(struct proc *p, struct timeval *up, struct timeval *sp); 115136152Sjhbvoid calcru(struct proc *p, struct timeval *up, struct timeval *sp); 116132319Salfredint chgproccnt(struct uidinfo *uip, int diff, int maxval); 117100591Sjdpint chgsbsize(struct uidinfo *uip, u_int *hiwat, u_int to, 118132319Salfred rlim_t maxval); 11992719Salfredint fuswintr(void *base); 120125495Sjhbstruct plimit 121125495Sjhb *lim_alloc(void); 122125495Sjhbvoid lim_copy(struct plimit *dst, struct plimit *src); 123125454Sjhbrlim_t lim_cur(struct proc *p, int which); 124125454Sjhbvoid lim_free(struct plimit *limp); 1251541Srgrimesstruct plimit 126125454Sjhb *lim_hold(struct plimit *limp); 127125495Sjhbrlim_t lim_max(struct proc *p, int which); 128125495Sjhbvoid lim_rlimit(struct proc *p, int which, struct rlimit *rlp); 129136152Sjhbvoid ruadd(struct rusage *ru, struct rusage_ext *rux, struct rusage *ru2, 130136152Sjhb struct rusage_ext *rux2); 13192719Salfredint suswintr(void *base, int word); 13265495Struckmanstruct uidinfo 13392719Salfred *uifind(uid_t uid); 134125495Sjhbvoid uifree(struct uidinfo *uip); 135125495Sjhbvoid uihashinit(void); 13692719Salfredvoid uihold(struct uidinfo *uip); 1374470Sbde 138125495Sjhb#endif /* _KERNEL */ 139125495Sjhb#endif /* !_SYS_RESOURCEVAR_H_ */ 140