src/usr.bin/top/utils.c - diff

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version 1.15, 2004/11/22 15:26:53

version 1.16, 2005/06/08 22:36:43

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#include <sys/param.h>

#include <sys/sysctl.h>

#include <err.h>

#include <stdio.h>

#include <string.h>

#include <stdlib.h>

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cnt += 3;

/* allocate a char * array to hold the pointers */

argarray = (char **) malloc(cnt * sizeof(char *));

if ((argarray = malloc(cnt * sizeof(char *))) == NULL)

err(1, NULL);

/* allocate another array to hold the strings themselves */

args = (char *) malloc(length + 2);

if ((args = malloc(length + 2)) == NULL)

err(1, NULL);

/* initialization for main loop */

from = line;

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* useful on BSD mchines for calculating cpu state percentages.

int

percentages(int cnt, int *out, long *new, long *old, long *diffs)

percentages(int cnt, int64_t *out, int64_t *new, int64_t *old, int64_t *diffs)

{

long change, total_change, *dp, half_total;

int64_t change, total_change, *dp, half_total;

int i;

/* initialization */

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for (i = 0; i < cnt; i++) {

if ((change = *new - *old) < 0) {

/* this only happens when the counter wraps */

change = ((unsigned int)*new - (unsigned int)*old);

change = (*new - *old);

}

total_change += (*dp++ = change);

*old++ = *new++;