code: def get_all():
    
    info_dir = _get_info_dir()
    results = []
    for filename in os.listdir(info_dir):
      filepath = os.path.join(info_dir, filename)
      try:
        with open(filepath) as infile:
          contents = infile.read()
      except IOError as e:
        if e.errno == errno.EACCES:
          # May have been written by this module in a process whose
          # `umask` includes some bits of 0o444.
          continue
        else:
          raise
      try:
        info = _info_from_string(contents)
      except ValueError:
        tb_logging.get_logger().warning(
            "invalid info file: %r",
            filepath,
            exc_info=True,
        )
      else:
        results.append(info)
    return results
docs: Return TensorBoardInfo values for running TensorBoard processes.
  
    This function may not provide a perfect snapshot of the set of running
    processes. Its result set may be incomplete if the user has cleaned
    their /tmp/ directory while TensorBoard processes are running. It may
    contain extraneous entries if TensorBoard processes exited uncleanly
    (e.g., with SIGKILL or SIGQUIT).
  
    Returns:
      A fresh list of `TensorBoardInfo` objects.