#include <errno.h>

#include "../common/global.h"
#include "udev.h"

#define _PATH_TOPO_CORE_ID    "topology/core_id"
#define _PATH_TOPO_PACKAGE_ID "topology/physical_package_id"

bool fill_array_from_sys(int *core_ids, int total_cores, char* SYS_PATH) {
  int filelen;
  char* buf;
  char* end;
  char path[128];

  for(int i=0; i < total_cores; i++) {
    sprintf(path, "%s%s/cpu%d/%s", _PATH_SYS_SYSTEM, _PATH_SYS_CPU, i, SYS_PATH);
    if((buf = read_file(path, &filelen)) == NULL) {
      printWarn("fill_array_from_sys: %s: %s", path, strerror(errno));
      return false;
    }

    errno = 0;
    core_ids[i] = strtol(buf, &end, 10);
    if(errno != 0) {
      printWarn("fill_array_from_sys: %s:", strerror(errno));
      return false;
    }
    free(buf);
  }

  return true;
}

bool fill_core_ids_from_sys(int *core_ids, int total_cores) {
  return fill_array_from_sys(core_ids, total_cores, _PATH_TOPO_CORE_ID);
}

bool fill_package_ids_from_sys(int* package_ids, int total_cores) {
  return fill_array_from_sys(package_ids, total_cores, _PATH_TOPO_PACKAGE_ID);
}