Function ToFutures

library/cpp/threading/future/future_mt_ut.cpp:57–65

    template <class T>
    TVector<TFuture<T>> ToFutures(const TVector<TPromise<T>>& promises) {
        TVector<TFuture<void>> futures;

        for (auto&& p : promises) {
            futures.emplace_back(p);
        }

        return futures;
    }

    struct TStateSnapshot {
        i64 Started = -1;