1 /* 2 * Copyright (c) 1991, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 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. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 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 1.2 2003/06/17 04:28:58 dillon Exp $ 36 */ 37 38 #ifndef _SYS_RESOURCEVAR_H_ 39 #define _SYS_RESOURCEVAR_H_ 40 41 #include <sys/resource.h> 42 #include <sys/queue.h> 43 44 /* 45 * Kernel per-process accounting / statistics 46 * (not necessarily resident except when running). 47 */ 48 struct pstats { 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 53 54 #define pstat_startcopy p_timer 55 struct itimerval p_timer[3]; /* virtual-time timers */ 56 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 */ 64 } p_prof; 65 #define pstat_endcopy p_start 66 struct timeval p_start; /* starting time */ 67 }; 68 69 /* 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. 76 */ 77 struct plimit { 78 struct rlimit pl_rlimit[RLIM_NLIMITS]; 79 #define PL_SHAREMOD 0x01 /* modifications are shared */ 80 int p_lflags; 81 int p_refcnt; /* number of references */ 82 rlim_t p_cpulimit; /* current cpu limit in usec */ 83 }; 84 85 /* 86 * Per uid resource consumption 87 */ 88 struct uidinfo { 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 */ 94 }; 95 96 #ifdef _KERNEL 97 #define uihold(uip) (uip)->ui_ref++ 98 struct proc; 99 100 void addupc_intr __P((struct proc *p, u_long pc, u_int ticks)); 101 void addupc_task __P((struct proc *p, u_long pc, u_int ticks)); 102 void calcru __P((struct proc *p, struct timeval *up, struct timeval *sp, 103 struct timeval *ip)); 104 int chgproccnt __P((struct uidinfo *uip, int diff, int max)); 105 int chgsbsize __P((struct uidinfo *uip, u_long *hiwat, u_long to, 106 rlim_t max)); 107 int fuswintr __P((void *base)); 108 struct plimit 109 *limcopy __P((struct plimit *lim)); 110 void ruadd __P((struct rusage *ru, struct rusage *ru2)); 111 int suswintr __P((void *base, int word)); 112 struct uidinfo 113 *uifind __P((uid_t uid)); 114 int uifree __P((struct uidinfo *uip)); 115 void uihashinit __P((void)); 116 #endif 117 118 #endif /* !_SYS_RESOURCEVAR_H_ */ 119