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/* $Id: osdep.c,v 1.1 2002/03/07 15:13:48 in2 Exp $ */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <fcntl.h>
#include <unistd.h>
#if defined(linux)
int cpuload(char *str) {
double l[3] = {-1, -1, -1};
FILE *fp;
if((fp = fopen("/proc/loadavg", "r"))) {
if(fscanf(fp, "%lf %lf %lf", &l[0], &l[1], &l[2]) != 3)
l[0] = -1;
fclose(fp);
}
if(str) {
if(l[0] != -1)
sprintf(str, " %.2f %.2f %.2f", l[0], l[1], l[2]);
else
strcpy(str, " (unknown) ");
}
return (int)l[0];
}
double swapused(long *total, long *used) {
double percent = -1;
char buf[101];
FILE *fp;
if((fp = fopen("/proc/meminfo","r"))) {
while(fgets(buf, 100, fp) && buf[0] != 'S');
if(sscanf(buf + 6, "%ld %ld", total, used) == 2)
if(*total != 0)
percent = (double)*used / (double)*total;
fclose(fp);
}
return percent;
}
#elif __FreeBSD__ >=4
#include <kvm.h>
int cpuload(char *str) {
double l[3] = {-1, -1, -1};
if(getloadavg(l, 3) != 3)
l[0] = -1;
if(str) {
if(l[0] != -1)
sprintf(str, " %.2f %.2f %.2f", l[0], l[1], l[2]);
else
strcpy(str, " (unknown) ");
}
return (int)l[0];
}
double swapused(long *total, long *used) {
double percent = -1;
kvm_t *kd;
struct kvm_swap swapinfo;
int pagesize;
kd = kvm_open(NULL, NULL, NULL, O_RDONLY, NULL);
if(kd) {
if(kvm_getswapinfo(kd, &swapinfo, 1, 0) == 0) {
pagesize = getpagesize();
*total = swapinfo.ksw_total * pagesize;
*used = swapinfo.ksw_used * pagesize;
if(*total != 0)
percent = (double)*used / (double)*total;
}
kvm_close(kd);
}
return percent;
}
#endif
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