// // 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/mtproto/TransportType.h" #include "td/utils/buffer.h" #include "td/utils/common.h" #include "td/utils/port/detail/PollableFd.h" #include "td/utils/Status.h" namespace td { namespace mtproto { class IStreamTransport { public: IStreamTransport() = default; IStreamTransport(const IStreamTransport &) = delete; IStreamTransport &operator=(const IStreamTransport &) = delete; virtual ~IStreamTransport() = default; virtual Result<size_t> read_next(BufferSlice *message, uint32 *quick_ack) = 0; virtual bool support_quick_ack() const = 0; virtual void write(BufferWriter &&message, bool quick_ack) = 0; virtual bool can_read() const = 0; virtual bool can_write() const = 0; virtual void init(ChainBufferReader *input, ChainBufferWriter *output) = 0; virtual size_t max_prepend_size() const = 0; virtual size_t max_append_size() const = 0; virtual TransportType get_type() const = 0; virtual bool use_random_padding() const = 0; }; unique_ptr<IStreamTransport> create_transport(TransportType type); } // namespace mtproto } // namespace td