113 lines
3.6 KiB
C
113 lines
3.6 KiB
C
/* $OpenBSD: resourcevar.h,v 1.31 2023/10/17 00:04:02 cheloha Exp $ */
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/* $NetBSD: resourcevar.h,v 1.12 1995/11/22 23:01:53 cgd Exp $ */
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/*
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* Copyright (c) 1991, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)resourcevar.h 8.3 (Berkeley) 2/22/94
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*/
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#ifndef _SYS_RESOURCEVAR_H_
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#define _SYS_RESOURCEVAR_H_
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#include <sys/refcnt.h>
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#include <sys/timeout.h>
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/*
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* Kernel shareable process resource limits. Because this structure
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* is moderately large but changes infrequently, it is shared
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* copy-on-write after forks.
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*/
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struct plimit {
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struct rlimit pl_rlimit[RLIM_NLIMITS];
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struct refcnt pl_refcnt;
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};
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/* add user profiling from AST */
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#define ADDUPROF(p) \
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do { \
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atomic_clearbits_int(&(p)->p_flag, P_OWEUPC); \
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addupc_task((p), (p)->p_prof_addr, (p)->p_prof_ticks); \
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(p)->p_prof_ticks = 0; \
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} while (0)
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#ifdef _KERNEL
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#include <lib/libkern/libkern.h> /* for KASSERT() */
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extern uint64_t profclock_period;
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void addupc_intr(struct proc *, u_long, u_long);
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void addupc_task(struct proc *, u_long, u_int);
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struct clockrequest;
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void profclock(struct clockrequest *, void *, void *);
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void tuagg_locked(struct process *, struct proc *, const struct timespec *);
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void tuagg(struct process *, struct proc *);
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struct tusage;
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void calctsru(struct tusage *, struct timespec *, struct timespec *,
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struct timespec *);
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void calcru(struct tusage *, struct timeval *, struct timeval *,
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struct timeval *);
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void lim_startup(struct plimit *);
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void lim_free(struct plimit *);
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void lim_fork(struct process *, struct process *);
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struct plimit *lim_read_enter(void);
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/*
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* Finish read access to resource limits.
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*/
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static inline void
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lim_read_leave(struct plimit *limit)
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{
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/* nothing */
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}
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/*
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* Get the value of the resource limit in current process.
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*/
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static inline rlim_t
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lim_cur(int which)
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{
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struct plimit *limit;
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rlim_t val;
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KASSERT(which >= 0 && which < RLIM_NLIMITS);
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limit = lim_read_enter();
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val = limit->pl_rlimit[which].rlim_cur;
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lim_read_leave(limit);
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return (val);
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}
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rlim_t lim_cur_proc(struct proc *, int);
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void ruadd(struct rusage *, struct rusage *);
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void rucheck(void *);
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#endif
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#endif /* !_SYS_RESOURCEVAR_H_ */
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