Function tinydir_open_sorted

include/singa/utils/tinydir.h:177–229

}

_TINYDIR_FUNC
int tinydir_open_sorted(tinydir_dir *dir, const char *path) {
  /* Count the number of files first, to pre-allocate the files array */
  size_t n_files = 0;
  if (tinydir_open(dir, path) == -1) {
    return -1;
  }
  while (dir->has_next) {
    n_files++;
    if (tinydir_next(dir) == -1) {
      goto bail;
    }
  }
  tinydir_close(dir);

  if (tinydir_open(dir, path) == -1) {
    return -1;
  }

  dir->n_files = 0;
  dir->_files = (tinydir_file *)_TINYDIR_MALLOC(sizeof *dir->_files * n_files);
  if (dir->_files == NULL) {
    errno = ENOMEM;
    goto bail;
  }
  while (dir->has_next) {
    tinydir_file *p_file;
    dir->n_files++;

    p_file = &dir->_files[dir->n_files - 1];
    if (tinydir_readfile(dir, p_file) == -1) {
      goto bail;
    }

    if (tinydir_next(dir) == -1) {
      goto bail;
    }

    /* Just in case the number of files has changed between the first and
    second reads, terminate without writing into unallocated memory */
    if (dir->n_files == n_files) {
      break;
    }
  }

  qsort(dir->_files, dir->n_files, sizeof(tinydir_file), _tinydir_file_cmp);

  return 0;

bail:
  tinydir_close(dir);
  return -1;
}

_TINYDIR_FUNC
void tinydir_close(tinydir_dir *dir) {