Method GetImpl

library/cpp/coroutine/engine/sockpool.h:197–208

private:
    TPooledSocket::TImpl* GetImpl() {
        TGuard<TMutex> guard(Mutex_);

        while (!Pool_.Empty()) {
            THolder<TPooledSocket::TImpl> ret(Pool_.PopFront());

            if (ret->IsOpen()) {
                return ret.Release();
            }
        }
        return nullptr;
    }

    void Release(TPooledSocket::TImpl* impl) noexcept {
        TGuard<TMutex> guard(Mutex_);