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8950d24456
system is slowed down and in the right spot (a race condition in fork()). The "previous time" fields have moved from pstat to proc. Anything which uses KVM needs to be recompiled with a new libkvm/headers. A couple wacky u_quad_t's in struct proc are now u_int64_t (the same, but according to lack of 'quad's in proc.h and usage in kern_resource.c). This will have no effect on code. This has been make-world-and-installed-new-kernel-which-works-fine-tested. Reviewed by: bde (previous version)
97 lines
3.7 KiB
C
97 lines
3.7 KiB
C
/*
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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. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. 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 8.4 (Berkeley) 1/9/95
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* $FreeBSD$
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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/resource.h>
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/*
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* Kernel per-process accounting / statistics
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* (not necessarily resident except when running).
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*/
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struct pstats {
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#define pstat_startzero p_ru
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struct rusage p_ru; /* stats for this proc */
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struct rusage p_cru; /* sum of stats for reaped children */
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#define pstat_endzero pstat_startcopy
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#define pstat_startcopy p_timer
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struct itimerval p_timer[3]; /* virtual-time timers */
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struct uprof { /* profile arguments */
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caddr_t pr_base; /* buffer base */
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u_long pr_size; /* buffer size */
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u_long pr_off; /* pc offset */
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u_long pr_scale; /* pc scaling */
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u_long pr_addr; /* temp storage for addr until AST */
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u_long pr_ticks; /* temp storage for ticks until AST */
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} p_prof;
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#define pstat_endcopy p_start
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struct timeval p_start; /* starting time */
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};
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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 normally
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* shared copy-on-write after forks. If a group of processes
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* ("threads") share modifications, the PL_SHAREMOD flag is set,
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* and a copy must be made for the child of a new fork that isn't
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* sharing modifications to the limits.
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*/
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struct plimit {
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struct rlimit pl_rlimit[RLIM_NLIMITS];
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#define PL_SHAREMOD 0x01 /* modifications are shared */
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int p_lflags;
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int p_refcnt; /* number of references */
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rlim_t p_cpulimit; /* current cpu limit in usec */
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};
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#ifdef _KERNEL
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struct proc;
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void addupc_intr __P((struct proc *p, u_long pc, u_int ticks));
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void addupc_task __P((struct proc *p, u_long pc, u_int ticks));
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void calcru __P((struct proc *p, struct timeval *up, struct timeval *sp,
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struct timeval *ip));
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int fuswintr __P((void *base));
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struct plimit
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*limcopy __P((struct plimit *lim));
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void ruadd __P((struct rusage *ru, struct rusage *ru2));
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int suswintr __P((void *base, int word));
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#endif
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#endif /* !_SYS_RESOURCEVAR_H_ */
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