Annotation of sys/sys/resourcevar.h, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: resourcevar.h,v 1.11 2007/03/15 10:22:30 art Exp $ */
! 2: /* $NetBSD: resourcevar.h,v 1.12 1995/11/22 23:01:53 cgd Exp $ */
! 3:
! 4: /*
! 5: * Copyright (c) 1991, 1993
! 6: * The Regents of the University of California. All rights reserved.
! 7: *
! 8: * Redistribution and use in source and binary forms, with or without
! 9: * modification, are permitted provided that the following conditions
! 10: * are met:
! 11: * 1. Redistributions of source code must retain the above copyright
! 12: * notice, this list of conditions and the following disclaimer.
! 13: * 2. Redistributions in binary form must reproduce the above copyright
! 14: * notice, this list of conditions and the following disclaimer in the
! 15: * documentation and/or other materials provided with the distribution.
! 16: * 3. Neither the name of the University nor the names of its contributors
! 17: * may be used to endorse or promote products derived from this software
! 18: * without specific prior written permission.
! 19: *
! 20: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
! 21: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
! 22: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
! 23: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
! 24: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
! 25: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
! 26: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
! 27: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
! 28: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
! 29: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
! 30: * SUCH DAMAGE.
! 31: *
! 32: * @(#)resourcevar.h 8.3 (Berkeley) 2/22/94
! 33: */
! 34:
! 35: #ifndef _SYS_RESOURCEVAR_H_
! 36: #define _SYS_RESOURCEVAR_H_
! 37:
! 38: #include <sys/timeout.h>
! 39:
! 40: /*
! 41: * Kernel per-process accounting / statistics
! 42: * (not necessarily resident except when running).
! 43: */
! 44: struct pstats {
! 45: #define pstat_startzero p_ru
! 46: struct rusage p_ru; /* stats for this proc */
! 47: struct rusage p_cru; /* sum of stats for reaped children */
! 48: struct itimerval p_timer[3]; /* virtual-time timers */
! 49: #define pstat_endzero pstat_startcopy
! 50:
! 51: #define pstat_startcopy p_prof
! 52: struct uprof { /* profile arguments */
! 53: caddr_t pr_base; /* buffer base */
! 54: size_t pr_size; /* buffer size */
! 55: u_long pr_off; /* pc offset */
! 56: u_int 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: struct timeout p_virt_to; /* virtual itimer trampoline. */
! 63: struct timeout p_prof_to; /* prof itimer trampoline. */
! 64: };
! 65:
! 66: /*
! 67: * Kernel shareable process resource limits. Because this structure
! 68: * is moderately large but changes infrequently, it is normally
! 69: * shared copy-on-write after forks. If a group of processes
! 70: * ("threads") share modifications, the PL_SHAREMOD flag is set,
! 71: * and a copy must be made for the child of a new fork that isn't
! 72: * sharing modifications to the limits.
! 73: */
! 74: struct plimit {
! 75: struct rlimit pl_rlimit[RLIM_NLIMITS];
! 76: #define PL_SHAREMOD 0x01 /* modifications are shared */
! 77: int p_lflags;
! 78: int p_refcnt; /* number of references */
! 79: };
! 80:
! 81: /* add user profiling from AST */
! 82: #define ADDUPROF(p) \
! 83: do { \
! 84: atomic_clearbits_int(&(p)->p_flag, P_OWEUPC); \
! 85: addupc_task((p), (p)->p_stats->p_prof.pr_addr, \
! 86: (p)->p_stats->p_prof.pr_ticks); \
! 87: (p)->p_stats->p_prof.pr_ticks = 0; \
! 88: } while (0)
! 89:
! 90: #ifdef _KERNEL
! 91: void addupc_intr(struct proc *p, u_long pc);
! 92: void addupc_task(struct proc *p, u_long pc, u_int ticks);
! 93: void calcru(struct proc *p, struct timeval *up, struct timeval *sp,
! 94: struct timeval *ip);
! 95: struct plimit *limcopy(struct plimit *lim);
! 96: void limfree(struct plimit *);
! 97:
! 98: void ruadd(struct rusage *ru, struct rusage *ru2);
! 99:
! 100: void virttimer_trampoline(void *);
! 101: void proftimer_trampoline(void *);
! 102: #endif
! 103: #endif /* !_SYS_RESOURCEVAR_H_ */
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