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103 lines
2.3 KiB
C++
103 lines
2.3 KiB
C++
/* Copyright (c) 2018-2022 Marcelo Zimbres Silva (mzimbres@gmail.com)
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*
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* Distributed under the Boost Software License, Version 1.0. (See
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* accompanying file LICENSE.txt)
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*/
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#include <iostream>
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#include <boost/asio.hpp>
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#include <boost/redis.hpp>
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#include <boost/redis/src.hpp>
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namespace net = boost::asio;
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namespace redis = boost::redis;
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namespace resp3 = boost::redis::resp3;
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using resp3::request;
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using redis::adapt;
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using redis::operation;
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void log(boost::system::error_code const& ec, char const* prefix)
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{
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std::clog << prefix << ec.message() << std::endl;
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}
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auto main(int argc, char * argv[]) -> int
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{
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try {
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std::string host = "127.0.0.1";
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std::string port = "6379";
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if (argc == 3) {
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host = argv[1];
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port = argv[2];
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}
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// The request
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resp3::request req;
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req.push("HELLO", 3);
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req.push("PING", "Hello world");
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req.push("QUIT");
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// The response.
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std::tuple<redis::ignore, std::string, redis::ignore> resp;
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net::io_context ioc;
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// IO objects.
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net::ip::tcp::resolver resv{ioc};
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redis::connection conn{ioc};
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// Resolve endpoints.
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net::ip::tcp::resolver::results_type endpoints;
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// async_run callback.
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auto on_run = [](auto ec)
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{
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if (ec)
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return log(ec, "on_run: ");
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};
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// async_exec callback.
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auto on_exec = [&](auto ec, auto)
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{
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if (ec) {
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conn.cancel(operation::run);
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return log(ec, "on_exec: ");
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}
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std::cout << "PING: " << std::get<1>(resp) << std::endl;
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};
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// Connect callback.
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auto on_connect = [&](auto ec, auto)
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{
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if (ec)
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return log(ec, "on_connect: ");
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conn.async_run(on_run);
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conn.async_exec(req, adapt(resp), on_exec);
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};
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// Resolve callback.
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auto on_resolve = [&](auto ec, auto const& addrs)
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{
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if (ec)
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return log(ec, "on_resolve: ");
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endpoints = addrs;
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net::async_connect(conn.next_layer(), endpoints, on_connect);
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};
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resv.async_resolve(host, port, on_resolve);
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ioc.run();
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return 0;
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} catch (std::exception const& e) {
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std::cerr << "Error: " << e.what() << std::endl;
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}
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return 1;
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}
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