78 lines
2.6 KiB
C++
78 lines
2.6 KiB
C++
/*
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* Copyright (C) 2021 Emeric Poupon
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*
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* This file is part of LMS.
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*
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* LMS is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* LMS 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 General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with LMS. If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include <deque>
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#include <vector>
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#include <string_view>
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#include <boost/asio/io_context.hpp>
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#include <boost/asio/io_context_strand.hpp>
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#include <boost/asio/steady_timer.hpp>
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#include <Wt/Http/Client.h>
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#include "ClientRequest.hpp"
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namespace lms::core::http
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{
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class SendQueue
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{
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public:
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SendQueue(boost::asio::io_context& ioContext, std::string_view baseUrl);
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~SendQueue();
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SendQueue(const SendQueue&) = delete;
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SendQueue(const SendQueue&&) = delete;
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SendQueue& operator=(const SendQueue&) = delete;
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SendQueue& operator=(const SendQueue&&) = delete;
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void sendRequest(std::unique_ptr<ClientRequest> request);
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private:
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void sendNextQueuedRequest();
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bool sendRequest(const ClientRequest& request);
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void onClientDone(Wt::AsioWrapper::error_code ec, const Wt::Http::Message& msg);
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void onClientDoneError(std::unique_ptr<ClientRequest> request, Wt::AsioWrapper::error_code ec);
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void onClientDoneSuccess(std::unique_ptr<ClientRequest> request, const Wt::Http::Message& msg);
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void throttle(std::chrono::seconds duration);
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const std::size_t _maxRetryCount{ 2 };
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const std::chrono::seconds _defaultRetryWaitDuration{ 30 };
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const std::chrono::seconds _minRetryWaitDuration{ 1 };
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const std::chrono::seconds _maxRetryWaitDuration{ 300 };
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boost::asio::io_context& _ioContext;
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boost::asio::io_context::strand _strand{ _ioContext };
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boost::asio::steady_timer _throttleTimer{ _ioContext };
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std::string _baseUrl;
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enum class State
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{
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Idle,
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Throttled,
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Sending,
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};
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State _state{ State::Idle };
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Wt::Http::Client _client{ _ioContext };
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std::map<ClientRequestParameters::Priority, std::deque<std::unique_ptr<ClientRequest>>> _sendQueue;
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std::unique_ptr<ClientRequest> _currentRequest;
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};
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} |