110 lines
3.4 KiB
C
110 lines
3.4 KiB
C
/*
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* Copyright (c) 1986 Regents of the University of California.
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* All rights reserved. The Berkeley software License Agreement
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* specifies the terms and conditions for redistribution.
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*
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* @(#)resource.h 1.3 (2.11BSD GTE) 1997/2/14
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*/
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#ifndef _SYS_RESOURCE_H_
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#define _SYS_RESOURCE_H_
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/*
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* Process priority specifications to get/setpriority.
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*/
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#define PRIO_MIN -20
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#define PRIO_MAX 20
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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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/*
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* Resource utilization information.
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*/
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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; /* user time used */
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struct timeval ru_stime; /* system time used */
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long ru_maxrss;
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#define ru_first ru_ixrss
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long ru_ixrss; /* integral shared memory size */
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long ru_idrss; /* integral unshared data " */
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long ru_isrss; /* integral unshared stack " */
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long ru_minflt; /* page reclaims */
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long ru_majflt; /* page faults */
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long ru_nswap; /* swaps */
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long ru_inblock; /* block input operations */
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long ru_oublock; /* block output operations */
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long ru_msgsnd; /* messages sent */
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long ru_msgrcv; /* messages received */
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long ru_nsignals; /* signals received */
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long ru_nvcsw; /* voluntary context switches */
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long ru_nivcsw; /* involuntary " */
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#define ru_last ru_nivcsw
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};
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struct k_rusage { /* KERNEL RUSAGE STRUCTURE */
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#define k_ru_first ru_utime
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long ru_utime; /* user time used ('hz' ticks) */
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long ru_stime; /* system time used ('hz' ticks) */
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long ru_nswap; /* swaps */
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long ru_inblock; /* block input operations */
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long ru_oublock; /* block output operations */
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long ru_msgsnd; /* messages sent */
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long ru_msgrcv; /* messages received */
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long ru_nsignals; /* signals received */
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long ru_nvcsw; /* voluntary context switches */
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long ru_nivcsw; /* involuntary " */
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#define k_ru_last ru_nivcsw
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};
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/*
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* Resource limits
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*/
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#define RLIMIT_CPU 0 /* cpu time in milliseconds */
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#define RLIMIT_FSIZE 1 /* maximum file size */
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#define RLIMIT_DATA 2 /* data size */
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#define RLIMIT_STACK 3 /* stack size */
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#define RLIMIT_CORE 4 /* core file size */
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#define RLIMIT_RSS 5 /* resident set size */
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#define RLIM_NLIMITS 6 /* number of resource limits */
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#define RLIM_INFINITY 0x7fffffff
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struct rlimit {
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long rlim_cur; /* current (soft) limit */
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long rlim_max; /* maximum value for rlim_cur */
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};
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/* Load average structure. */
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struct loadavg {
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short ldavg[3];
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int fscale;
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};
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#ifdef KERNEL
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/*
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* Convert an internal kernel rusage structure into a `real' rusage structure.
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*/
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void rucvt (struct rusage *rup, struct k_rusage *krup);
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/*
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* Add resource usage data.
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*/
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void ruadd (struct k_rusage *ru, struct k_rusage *ru2);
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#else
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int getrlimit(int resource, struct rlimit *rlim);
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int getrusage(int who, struct rusage *usage);
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int setrlimit(int resource, const struct rlimit *rlim);
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#endif
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#endif /* !_SYS_RESOURCE_H_ */
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