Method thaw

src/linux/cgroups.cpp:1335–1362

  }

  void thaw()
  {
    Try<Nothing> thaw = internal::freezer::state(hierarchy, cgroup, "THAWED");
    if (thaw.isError()) {
      promise.fail(thaw.error());
      terminate(self());
      return;
    }

    Try<string> state = internal::freezer::state(hierarchy, cgroup);
    if (state.isError()) {
      promise.fail(state.error());
      terminate(self());
      return;
    }

    if (state.get() == "THAWED") {
      LOG(INFO) << "Successfully thawed cgroup "
                << path::join(hierarchy, cgroup)
                << " after " << (Clock::now() - start);
      promise.set(Nothing());
      terminate(self());
      return;
    }

    // Attempt to thaw the freezer cgroup again.
    delay(Milliseconds(100), self(), &Self::thaw);
  }

  Future<Nothing> future() { return promise.future(); }