93 lines
3.5 KiB
C
93 lines
3.5 KiB
C
/*
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* Copyright (c) 2004, 2008
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* The President and Fellows of Harvard College.
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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 UNIVERSITY 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 UNIVERSITY 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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#ifndef _KERN_RESOURCE_H_
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#define _KERN_RESOURCE_H_
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/*
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* Definitions for resource usage and limits.
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*
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* Not very important.
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*/
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/* priorities for setpriority() */
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#define PRIO_MIN (-20)
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#define PRIO_MAX 20
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/* "which" codes for setpriority() */
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#define PRIO_PROCESS 0
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#define PRIO_PGRP 1
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#define PRIO_USER 2
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/* flags for getrusage() */
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#define RUSAGE_SELF 0
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#define RUSAGE_CHILDREN (-1)
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struct rusage {
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struct timeval ru_utime;
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struct timeval ru_stime;
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__size_t ru_maxrss; /* maximum RSS during lifespan (kb) */
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__counter_t ru_ixrss; /* text memory usage (kb-ticks) */
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__counter_t ru_idrss; /* data memory usage (kb-ticks) */
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__counter_t ru_isrss; /* stack memory usage (kb-ticks) */
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__counter_t ru_minflt; /* minor VM faults (count) */
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__counter_t ru_majflt; /* major VM faults (count) */
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__counter_t ru_nswap; /* whole-process swaps (count) */
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__counter_t ru_inblock; /* file blocks read (count) */
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__counter_t ru_oublock; /* file blocks written (count) */
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__counter_t ru_msgrcv; /* socket/pipe packets rcv'd (count) */
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__counter_t ru_msgsnd; /* socket/pipe packets sent (count) */
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__counter_t ru_nsignals; /* signals delivered (count) */
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__counter_t ru_nvcsw; /* voluntary context switches (count)*/
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__counter_t ru_nivcsw; /* involuntary ditto (count) */
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};
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/* limit codes for getrusage/setrusage */
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#define RLIMIT_NPROC 0 /* max procs per user (count) */
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#define RLIMIT_NOFILE 1 /* max open files per proc (count) */
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#define RLIMIT_CPU 2 /* cpu usage (seconds) */
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#define RLIMIT_DATA 3 /* max .data/sbrk size (bytes) */
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#define RLIMIT_STACK 4 /* max stack size (bytes) */
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#define RLIMIT_MEMLOCK 5 /* max locked memory region (bytes) */
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#define RLIMIT_RSS 6 /* max RSS (bytes) */
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#define RLIMIT_CORE 7 /* core file size (bytes) */
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#define RLIMIT_FSIZE 8 /* max file size (bytes) */
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#define __RLIMIT_NUM 9 /* number of limits */
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struct rlimit {
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__rlim_t rlim_cur; /* soft limit */
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__rlim_t rlim_max; /* hard limit */
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};
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#define RLIM_INFINITY (~(__rlim_t)0)
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#endif /* _KERN_RESOURCE_H_ */
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