mirror of
https://github.com/ton-blockchain/ton
synced 2025-03-09 15:40:10 +00:00
58 lines
1.8 KiB
C++
58 lines
1.8 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 "td/utils/optional.h"
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#include "td/utils/Time.h"
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namespace ton {
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namespace rldp2 {
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// NB: Should be careful with max_capacity < time_granularity * speed
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// We may send packet of any size.
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// After that we will be put to sleep till wakeup_at().
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// When we are awake we send packet of any size again.
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// Logic is - we don't have to wait to send a packet - it is poinless.
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// But we have to wait for some time after packet is sent
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class Pacer {
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public:
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struct Options {
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Options() {
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}
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double initial_capacity{20};
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double initial_speed{10};
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double max_capacity{40};
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double time_granularity{0.001};
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};
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Pacer(Options options = {});
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td::Timestamp wakeup_at() const;
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void set_speed(double speed);
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td::optional<td::Timestamp> send(double size, td::Timestamp now);
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private:
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double speed_;
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double capacity_;
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double max_capacity_;
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double time_granularity_;
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td::Timestamp capacity_at_;
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td::Timestamp wakeup_at_;
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void update_capacity(td::Timestamp now);
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};
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} // namespace rldp2
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} // namespace ton
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