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 1.10 2004/06/20 22:29:10 hmp 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 #ifndef _SYS_VARSYM_H_ 45 #include <sys/varsym.h> 46 #endif 47 48 /* 49 * Kernel per-process accounting / statistics 50 * (not necessarily resident except when running). 51 */ 52 struct pstats { 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 */ 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 }; 66 67 /* 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. 74 */ 75 struct plimit { 76 struct rlimit pl_rlimit[RLIM_NLIMITS]; 77 #define PL_SHAREMOD 0x01 /* modifications are shared */ 78 int p_lflags; 79 int p_refcnt; /* number of references */ 80 rlim_t p_cpulimit; /* current cpu limit in usec */ 81 }; 82 83 /* 84 * Per uid resource consumption 85 */ 86 struct uidinfo { 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 */ 94 }; 95 96 #ifdef _KERNEL 97 98 struct proc; 99 100 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, 103 struct timeval *ip); 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); 115 #endif 116 117 #endif /* !_SYS_RESOURCEVAR_H_ */ 118