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112 lines
2.7 KiB
C++
112 lines
2.7 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 <unordered_map>
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#include <vector>
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#include <aedis/src.hpp>
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#include <aedis/aedis.hpp>
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#include "lib/client_base.hpp"
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#include "lib/user_session.hpp"
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#include "src.hpp"
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namespace net = aedis::net;
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using aedis::resp3::client_base;
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using aedis::command;
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using aedis::user_session;
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using aedis::user_session_base;
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using aedis::resp3::node;
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using aedis::resp3::detail::response_traits;
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using aedis::resp3::type;
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// TODO: Use all necessary data types.
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struct adapter_helper {
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using adapter_type = response_traits<std::vector<node>>::adapter_type;
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adapter_type adapter;
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void
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operator()(
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command,
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type t,
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std::size_t aggregate_size,
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std::size_t depth,
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char const* data,
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std::size_t size,
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std::error_code& ec)
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{
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adapter(t, aggregate_size, depth, data, size, ec);
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}
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};
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class my_redis_client : public client_base {
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private:
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std::vector<node> resp_;
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std::vector<std::weak_ptr<user_session_base>> sessions_;
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void on_message(command) override
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{
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resp_.clear();
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}
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void on_push() override
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{
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for (auto& weak: sessions_) {
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if (auto session = weak.lock()) {
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session->deliver(resp_.at(3).data);
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} else {
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std::cout << "Session expired." << std::endl;
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}
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}
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resp_.clear();
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}
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public:
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my_redis_client(net::any_io_executor ex)
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: client_base(ex, adapter_helper{adapt(resp_)})
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{}
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auto subscribe(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> listener()
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{
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auto ex = co_await net::this_coro::executor;
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net::ip::tcp::acceptor acceptor(ex, {net::ip::tcp::v4(), 55555});
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auto client = std::make_shared<my_redis_client>(ex);
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client->start();
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client->send(command::subscribe, "channel");
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for (;;) {
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auto socket = co_await acceptor.async_accept(net::use_awaitable);
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auto session = std::make_shared<user_session>(std::move(socket));
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client->subscribe(session);
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auto on_msg = [client](std::string const& msg)
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{ client->send(command::publish, "channel", msg); };
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session->start(on_msg);
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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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net::signal_set signals(ioc, SIGINT, SIGTERM);
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signals.async_wait([&](auto, auto){ ioc.stop(); });
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co_spawn(ioc, listener(), net::detached);
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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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