mirror of
https://github.com/ton-blockchain/ton
synced 2025-03-09 15:40:10 +00:00
138 lines
4.2 KiB
C++
138 lines
4.2 KiB
C++
/*
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This file is part of TON Blockchain Library.
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TON Blockchain Library is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation, either version 2 of the License, or
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(at your option) any later version.
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TON Blockchain Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with TON Blockchain Library. If not, see <http://www.gnu.org/licenses/>.
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Copyright 2017-2020 Telegram Systems LLP
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*/
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#pragma once
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#include "Bbr.h"
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#include "InboundTransfer.h"
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#include "LossStats.h"
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#include "OutboundTransfer.h"
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#include "Pacer.h"
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#include "RttStats.h"
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#include "common/bitstring.h"
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#include "td/utils/buffer.h"
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#include "td/utils/Heap.h"
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#include "td/utils/VectorQueue.h"
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#include <set>
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namespace ton {
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namespace rldp2 {
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using TransferId = td::Bits256;
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class ConnectionCallback {
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public:
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virtual ~ConnectionCallback() {
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}
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virtual void send_raw(td::BufferSlice small_datagram) = 0;
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virtual void receive(TransferId transfer_id, td::Result<td::BufferSlice> r_data) = 0;
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virtual void on_sent(TransferId transfer_id, td::Result<td::Unit> state) = 0;
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};
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class RldpConnection {
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public:
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RldpConnection();
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RldpConnection(RldpConnection &&other) = delete;
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RldpConnection &operator=(RldpConnection &&other) = delete;
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void send(TransferId tranfer_id, td::BufferSlice data, td::Timestamp timeout = td::Timestamp::never());
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void set_receive_limits(TransferId transfer_id, td::Timestamp timeout, td::uint64 max_size);
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void receive_raw(td::BufferSlice packet);
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td::Timestamp run(ConnectionCallback &callback);
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void set_default_mtu(td::uint64 mtu) {
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default_mtu_ = mtu;
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}
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td::uint64 default_mtu() const {
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return default_mtu_;
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}
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private:
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td::uint64 default_mtu_ = 7680;
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std::map<TransferId, OutboundTransfer> outbound_transfers_;
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td::uint32 in_flight_count_{0};
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std::map<TransferId, InboundTransfer> inbound_transfers_;
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struct Limit : public td::HeapNode {
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TransferId transfer_id;
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td::uint64 max_size;
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bool is_inbound;
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bool operator<(const Limit &other) const {
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return transfer_id < other.transfer_id;
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}
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};
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td::KHeap<double> limits_heap_;
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std::set<Limit> limits_set_;
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struct CompletedId {
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TransferId transfer_id;
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td::Timestamp timeout;
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};
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td::VectorQueue<CompletedId> completed_queue_;
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std::set<TransferId> completed_set_;
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void add_limit(td::Timestamp timeout, Limit limit);
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td::Timestamp next_limit_expires_at();
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void drop_limits(TransferId id);
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void on_inbound_completed(TransferId transfer_id, td::Timestamp now);
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td::Timestamp loop_limits(td::Timestamp now);
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void loop_bbr(td::Timestamp now);
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RttStats rtt_stats_;
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BdwStats bdw_stats_;
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LossStats loss_stats_;
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Bbr bbr_;
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Pacer pacer_;
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td::uint32 congestion_window_{0};
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std::vector<td::BufferSlice> to_send_raw_;
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std::vector<std::pair<TransferId, td::Result<td::BufferSlice>>> to_receive_;
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std::vector<std::pair<TransferId, td::Result<td::Unit>>> to_on_sent_;
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void send_packet(td::BufferSlice packet) {
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to_send_raw_.push_back(std::move(packet));
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};
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td::Timestamp run(const TransferId &transfer_id, InboundTransfer &inbound);
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struct Guard {
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td::uint32 &in_flight_count;
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const RldpSender &sender;
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td::uint32 before_in_flight{sender.get_inflight_symbols_count()};
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Guard(td::uint32 &in_flight_count, const RldpSender &sender) : in_flight_count(in_flight_count), sender(sender){};
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~Guard() {
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in_flight_count -= before_in_flight;
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in_flight_count += sender.get_inflight_symbols_count();
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}
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};
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td::optional<td::Timestamp> step(const TransferId &transfer_id, OutboundTransfer &outbound, td::Timestamp now);
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void receive_raw_obj(ton::ton_api::rldp2_messagePart &part);
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void receive_raw_obj(ton::ton_api::rldp2_complete &part);
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void receive_raw_obj(ton::ton_api::rldp2_confirm &part);
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};
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} // namespace rldp2
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} // namespace ton
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