// // Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2023 // // Distributed under the Boost Software License, Version 1.0. (See accompanying // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) // #pragma once #include "td/utils/StorerBase.h" #include "td/utils/tl_storers.h" #include <limits> namespace td { namespace mtproto { template <class Impl> class PacketStorer final : public Storer , public Impl { public: size_t size() const final { if (size_ != std::numeric_limits<size_t>::max()) { return size_; } TlStorerCalcLength storer; this->do_store(storer); return size_ = storer.get_length(); } size_t store(uint8 *ptr) const final { TlStorerUnsafe storer(ptr); this->do_store(storer); return static_cast<size_t>(storer.get_buf() - ptr); } using Impl::Impl; private: mutable size_t size_ = std::numeric_limits<size_t>::max(); }; } // namespace mtproto } // namespace td