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#include <glib.h>
#include <stdio.h>
#include "zenmonitor.h"
#define SYSFS_DIR_CPUS "/sys/bus/cpu/devices"
gshort* get_cpu_dev_ids(){
gshort *cpu_dev_ids = NULL;
gshort coreid, cpuid;
GDir *dir;
const gchar *entry;
gchar *filename, *buffer;
guint cores, i;
cores = get_core_count();
cpu_dev_ids = malloc(cores * sizeof (gshort));
memset(cpu_dev_ids, -1, cores * sizeof (gshort));
dir = g_dir_open(SYSFS_DIR_CPUS, 0, NULL);
if (dir) {
while ((entry = g_dir_read_name(dir))) {
if (sscanf(entry, "cpu%hd", &cpuid) != 1) {
continue;
}
filename = g_build_filename(SYSFS_DIR_CPUS, entry, "topology", "core_id", NULL);
if (g_file_get_contents(filename, &buffer, NULL, NULL)) {
coreid = (gshort) atoi(buffer);
if (coreid < cores && cpu_dev_ids[coreid] == -1) {
cpu_dev_ids[coreid] = cpuid;
}
}
g_free(filename);
g_free(buffer);
}
}
for (i = 0; i < cores; i++) {
if (cpu_dev_ids[i] < 0) {
cpu_dev_ids[i] = i;
}
}
return cpu_dev_ids;
}
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