Method GetRequest

library/cpp/neh/http2.cpp:871–874

unlink connection and request, thread-safe mark connection as non valid

        //unlink connection and request, thread-safe mark connection as non valid
        inline THttpRequestRef GetRequest() noexcept {
            TGuard<TSpinLock> g(SL_);
            return Req_;
        }

        inline THttpRequestRef ReleaseRequest() noexcept {
            THttpRequestRef r;