Method MessageSendedCompletely

library/cpp/neh/http2.cpp:319–330

            }

            bool MessageSendedCompletely() const noexcept override {
                if (TSimpleHandle::MessageSendedCompletely()) {
                    return true;
                }

                THttpRequestRef req(GetRequest());
                if (!!req && req->RequestSendedCompletely()) {
                    const_cast<THandle*>(this)->SetSendComplete();
                }

                return TSimpleHandle::MessageSendedCompletely();
            }

            void Cancel() noexcept override {
                if (TSimpleHandle::Canceled()) {