Function cleanup

src/linux/cgroups.cpp:1699–1721

Future<bool> cleanup(const string& hierarchy)
{
  Try<bool> mounted = cgroups::mounted(hierarchy);
  if (mounted.isError()) {
    return Failure(mounted.error());
  }

  if (mounted.get()) {
    // Destroy all cgroups and then cleanup.
    return destroy(hierarchy)
      .then(lambda::bind(_cleanup, hierarchy));
  } else {
    // Remove the directory if it still exists.
    if (os::exists(hierarchy)) {
      Try<Nothing> rmdir = os::rmdir(hierarchy);
      if (rmdir.isError()) {
        return Failure(rmdir.error());
      }
    }
  }

  return true;
}


Future<bool> _cleanup(const string& hierarchy)