Function with_lock

util/thread/pool_ut.cpp:214–223

        for (size_t i = 0; i < expectedNames.size(); ++i) {
            pool.SafeAddFunc([&]() {
                with_lock (lock) {
                    if (++readyCount == expectedNames.size()) {
                        allReady.BroadCast();
                    } else {
                        while (readyCount != expectedNames.size()) {
                            allReady.WaitI(lock);
                        }
                    }
                    names.insert(TThread::CurrentThreadName());
                }
            });
        }
        pool.Stop();