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107 lines
2.9 KiB
C++
107 lines
2.9 KiB
C++
/* Copyright (c) 2019 Marcelo Zimbres Silva (mzimbres@gmail.com)
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at https://mozilla.org/MPL/2.0/.
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*/
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#include <iostream>
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#include <vector>
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#include <aedis/aedis.hpp>
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#include <aedis/src.hpp>
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#include "user_session.hpp"
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namespace net = aedis::net;
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using aedis::redis::receiver_base;
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using aedis::redis::command;
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using aedis::resp3::node;
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using aedis::user_session;
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using aedis::user_session_base;
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using client_type = aedis::redis::client<aedis::net::ip::tcp::socket>;
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using response_type = std::vector<node<std::string>>;
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class myreceiver : public receiver_base<response_type> {
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private:
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std::shared_ptr<client_type> db_;
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std::vector<std::shared_ptr<user_session_base>> sessions_;
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public:
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myreceiver(std::shared_ptr<client_type> db) : db_{db} {}
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void on_push_impl() override
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{
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for (auto& session: sessions_)
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session->deliver(get<response_type>().at(3).value);
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get<response_type>().clear();
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}
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void on_read_impl(command cmd) override
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{
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switch (cmd) {
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case command::hello:
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db_->send(command::subscribe, "channel");
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break;
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case command::incr:
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std::cout << "Messages so far: " << get<response_type>().front().value << std::endl;
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break;
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default:;
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}
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get<response_type>().clear();
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}
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auto add(std::shared_ptr<user_session_base> session)
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{ sessions_.push_back(session); }
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};
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net::awaitable<void>
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listener(
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std::shared_ptr<net::ip::tcp::acceptor> acc,
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std::shared_ptr<client_type> db,
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std::shared_ptr<myreceiver> recv)
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{
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auto on_user_msg = [db](std::string const& msg)
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{
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db->send(command::publish, "channel", msg);
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db->send(command::incr, "message-counter");
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};
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for (;;) {
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auto socket = co_await acc->async_accept(net::use_awaitable);
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auto session = std::make_shared<user_session>(std::move(socket));
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session->start(on_user_msg);
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recv->add(session);
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}
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}
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int main()
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{
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try {
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net::io_context ioc{1};
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auto db = std::make_shared<client_type>(ioc.get_executor());
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auto recv = std::make_shared<myreceiver>(db);
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db->async_run(
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*recv,
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{net::ip::make_address("127.0.0.1"), 6379},
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[](auto ec){ std::cout << ec.message() << std::endl;});
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auto endpoint = net::ip::tcp::endpoint{net::ip::tcp::v4(), 55555};
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auto acc = std::make_shared<net::ip::tcp::acceptor>(ioc.get_executor(), endpoint);
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co_spawn(ioc, listener(acc, db, recv), net::detached);
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net::signal_set signals(ioc.get_executor(), SIGINT, SIGTERM);
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signals.async_wait([&] (auto, int) { ioc.stop(); });
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ioc.run();
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} catch (std::exception const& e) {
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std::cerr << e.what() << std::endl;
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}
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}
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