92 lines
2.9 KiB
C++
92 lines
2.9 KiB
C++
//
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// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2021
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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/mtproto/ConnectionManager.h"
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#include "td/mtproto/PacketInfo.h"
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#include "td/mtproto/TransportType.h"
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#include "td/utils/buffer.h"
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#include "td/utils/common.h"
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#include "td/utils/port/detail/PollableFd.h"
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#include "td/utils/port/IPAddress.h"
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#include "td/utils/port/SocketFd.h"
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#include "td/utils/Status.h"
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#include "td/utils/StorerBase.h"
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namespace td {
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namespace mtproto {
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class AuthKey;
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class RawConnection {
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public:
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class StatsCallback {
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public:
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virtual ~StatsCallback() = default;
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virtual void on_read(uint64 bytes) = 0;
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virtual void on_write(uint64 bytes) = 0;
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virtual void on_pong() = 0; // called when we know that connection is alive
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virtual void on_error() = 0; // called on RawConnection error. Such error should be very rare on good connections.
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virtual void on_mtproto_error() = 0;
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};
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RawConnection() = default;
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RawConnection(const RawConnection &) = delete;
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RawConnection &operator=(const RawConnection &) = delete;
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virtual ~RawConnection() = default;
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static unique_ptr<RawConnection> create(IPAddress ip_address, SocketFd socket_fd, TransportType transport_type,
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unique_ptr<StatsCallback> stats_callback);
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virtual void set_connection_token(ConnectionManager::ConnectionToken connection_token) = 0;
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virtual bool can_send() const = 0;
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virtual TransportType get_transport_type() const = 0;
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virtual void send_crypto(const Storer &storer, int64 session_id, int64 salt, const AuthKey &auth_key,
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uint64 quick_ack_token) = 0;
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virtual uint64 send_no_crypto(const Storer &storer) = 0;
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virtual PollableFdInfo &get_poll_info() = 0;
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virtual StatsCallback *stats_callback() = 0;
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class Callback {
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public:
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Callback() = default;
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Callback(const Callback &) = delete;
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Callback &operator=(const Callback &) = delete;
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virtual ~Callback() = default;
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virtual Status on_raw_packet(const PacketInfo &info, BufferSlice packet) = 0;
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virtual Status on_quick_ack(uint64 quick_ack_token) {
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return Status::Error("Quick acks unsupported fully, but still used");
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}
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virtual Status before_write() {
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return Status::OK();
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}
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virtual void on_read(size_t size) {
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}
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};
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// NB: After first returned error, all subsequent calls will return error too.
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virtual Status flush(const AuthKey &auth_key, Callback &callback) TD_WARN_UNUSED_RESULT = 0;
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virtual bool has_error() const = 0;
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virtual void close() = 0;
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struct PublicFields {
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uint32 extra{0};
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string debug_str;
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double rtt{0};
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};
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virtual PublicFields &extra() = 0;
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virtual const PublicFields &extra() const = 0;
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};
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} // namespace mtproto
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} // namespace td
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