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#include <limits.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include "util.h"
#define SYSFS_CPU "/sys/devices/system/cpu/cpu"
#define MAXCPUS 1024
unsigned get_ncpus(void)
{
char path[cstrlen(SYSFS_CPU "1024") + 1];
unsigned n;
for (n = 0; n < MAXCPUS; n++) {
snprintf(path, sizeof(path), "%s%u", SYSFS_CPU, n);
if (access(path, F_OK) == -1)
break;
}
return n == 0 ? 1 : n;
}
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