db792209dd
Reviewed by: sbruno, imp Approved by: rpaulo (mentor) Differential Revision: https://reviews.freebsd.org/D4457
58 lines
1.5 KiB
C
58 lines
1.5 KiB
C
/*
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* Top - a top users display for Berkeley Unix
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*
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* Defines required to access load average figures.
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*
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* This include file sets up everything we need to access the load average
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* values in the kernel in a machine independent way. First, it sets the
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* typedef "load_avg" to be either double or long (depending on what is
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* needed), then it defines these macros appropriately:
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*
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* loaddouble(la) - convert load_avg to double.
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* intload(i) - convert integer to load_avg.
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*/
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/*
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* We assume that if FSCALE is defined, then avenrun and ccpu are type long.
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* If your machine is an exception (mips, perhaps?) then make adjustments
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* here.
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*
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* Defined types: load_avg for load averages, pctcpu for cpu percentages.
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*/
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#if defined(mips) && !(defined(NetBSD) || defined(FreeBSD))
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# include <sys/fixpoint.h>
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# if defined(FBITS) && !defined(FSCALE)
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# define FSCALE (1 << FBITS) /* RISC/os on mips */
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# endif
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#endif
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#ifdef FSCALE
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# define FIXED_LOADAVG FSCALE
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# define FIXED_PCTCPU FSCALE
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#endif
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#ifdef ibm032
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# undef FIXED_LOADAVG
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# undef FIXED_PCTCPU
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# define FIXED_PCTCPU PCT_SCALE
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#endif
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#ifdef FIXED_PCTCPU
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typedef long pctcpu;
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# define pctdouble(p) ((double)(p) / FIXED_PCTCPU)
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#else
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typedef double pctcpu;
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# define pctdouble(p) (p)
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#endif
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#ifdef FIXED_LOADAVG
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typedef fixpt_t load_avg;
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# define loaddouble(la) ((double)(la) / FIXED_LOADAVG)
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# define intload(i) ((int)((i) * FIXED_LOADAVG))
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#else
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typedef double load_avg;
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# define loaddouble(la) (la)
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# define intload(i) ((double)(i))
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#endif
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