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/*
* Top - a top users display for Berkeley Unix
*
* Defines required to access load average figures.
*
* This include file sets up everything we need to access the load average
* values in the kernel in a machine independent way. First, it sets the
* typedef "load_avg" to be either double or long (depending on what is
* needed), then it defines these macros appropriately:
*
* loaddouble(la) - convert load_avg to double.
* intload(i) - convert integer to load_avg.
*/
#ifndef _LOADAVG_H_
#define _LOADAVG_H_
/*
* We assume that if FSCALE is defined, then avenrun and ccpu are type long.
* If your machine is an exception (mips, perhaps?) then make adjustments
* here.
*
* Defined types: load_avg for load averages, pctcpu for cpu percentages.
*/
#if defined(mips) && !defined(NetBSD) && !defined(OpenBSD)
#include <sys/fixpoint.h>
#if defined(FBITS) && !defined(FSCALE)
#define FSCALE (1 << FBITS) /* mips */
#endif
#endif
#ifdef FSCALE
#define FIXED_LOADAVG FSCALE
#define FIXED_PCTCPU FSCALE
#endif
#ifdef ibm032
#undef FIXED_LOADAVG
#undef FIXED_PCTCPU
#define FIXED_PCTCPU PCT_SCALE
#endif
#ifdef FIXED_PCTCPU
typedef long pctcpu;
#define pctdouble(p) ((double)(p) / FIXED_PCTCPU)
#else
typedef double pctcpu;
#define pctdouble(p) (p)
#endif
#ifdef FIXED_LOADAVG
#if __FreeBSD__ == 9
typedef __uint32_t load_avg;
#else
typedef fixpt_t load_avg;
#endif /* __FreeBSD__ == 9 */
#define loaddouble(la) ((double)(la) / FIXED_LOADAVG)
#define intload(i) ((int)((i) * FIXED_LOADAVG))
#else
typedef double load_avg;
#define loaddouble(la) (la)
#define intload(i) ((double)(i))
#endif
#endif /* _LOADAVG_H_ */
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