resourcevar.h revision 1542
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 8.3 (Berkeley) 2/22/94 34 */ 35 36#ifndef _SYS_RESOURCEVAR_H_ 37#define _SYS_RESOURCEVAR_H_ 38 39/* 40 * Kernel per-process accounting / statistics 41 * (not necessarily resident except when running). 42 */ 43struct pstats { 44#define pstat_startzero p_ru 45 struct rusage p_ru; /* stats for this proc */ 46 struct rusage p_cru; /* sum of stats for reaped children */ 47#define pstat_endzero pstat_startcopy 48 49#define pstat_startcopy p_timer 50 struct itimerval p_timer[3]; /* virtual-time timers */ 51 52 struct uprof { /* profile arguments */ 53 caddr_t pr_base; /* buffer base */ 54 u_long pr_size; /* buffer size */ 55 u_long pr_off; /* pc offset */ 56 u_long pr_scale; /* pc scaling */ 57 u_long pr_addr; /* temp storage for addr until AST */ 58 u_long pr_ticks; /* temp storage for ticks until AST */ 59 } p_prof; 60#define pstat_endcopy p_start 61 struct timeval p_start; /* starting time */ 62}; 63 64/* 65 * Kernel shareable process resource limits. Because this structure 66 * is moderately large but changes infrequently, it is normally 67 * shared copy-on-write after forks. If a group of processes 68 * ("threads") share modifications, the PL_SHAREMOD flag is set, 69 * and a copy must be made for the child of a new fork that isn't 70 * sharing modifications to the limits. 71 */ 72struct plimit { 73 struct rlimit pl_rlimit[RLIM_NLIMITS]; 74#define PL_SHAREMOD 0x01 /* modifications are shared */ 75 int p_lflags; 76 int p_refcnt; /* number of references */ 77}; 78 79/* add user profiling from AST */ 80#define ADDUPROF(p) \ 81 addupc_task(p, \ 82 (p)->p_stats->p_prof.pr_addr, (p)->p_stats->p_prof.pr_ticks) 83 84#ifdef KERNEL 85void addupc_intr __P((struct proc *p, u_long pc, u_int ticks)); 86void addupc_task __P((struct proc *p, u_long pc, u_int ticks)); 87struct plimit 88 *limcopy __P((struct plimit *lim)); 89#endif 90#endif /* !_SYS_RESOURCEVAR_H_ */ 91