59 lines
1.4 KiB
C++
59 lines
1.4 KiB
C++
//
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// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2022
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//
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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//
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#pragma once
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#include "td/utils/Storer.h"
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#include "td/utils/StorerBase.h"
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#include "td/utils/tl_storers.h"
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#include <limits>
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namespace td {
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template <class T>
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using TLStorer = DefaultStorer<T>;
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template <class T>
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class TLObjectStorer final : public Storer {
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mutable size_t size_ = std::numeric_limits<size_t>::max();
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const T &object_;
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public:
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explicit TLObjectStorer(const T &object) : object_(object) {
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}
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size_t size() const final {
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if (size_ == std::numeric_limits<size_t>::max()) {
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TlStorerCalcLength storer;
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storer.store_binary(object_.get_id());
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object_.store(storer);
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size_ = storer.get_length();
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}
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return size_;
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}
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size_t store(uint8 *ptr) const final {
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TlStorerUnsafe storer(ptr);
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storer.store_binary(object_.get_id());
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object_.store(storer);
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return static_cast<size_t>(storer.get_buf() - ptr);
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}
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};
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namespace mtproto_api {
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class Object;
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class Function;
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} // namespace mtproto_api
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namespace mtproto {
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TLStorer<mtproto_api::Function> create_storer(const mtproto_api::Function &function);
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TLObjectStorer<mtproto_api::Object> create_storer(const mtproto_api::Object &object);
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} // namespace mtproto
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} // namespace td
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