2
0
mirror of https://github.com/boostorg/redis.git synced 2026-01-19 04:42:09 +00:00
Files
redis/examples/cpp17_intro_sync.cpp
2023-02-04 20:43:36 +01:00

81 lines
2.0 KiB
C++

/* Copyright (c) 2018-2022 Marcelo Zimbres Silva (mzimbres@gmail.com)
*
* Distributed under the Boost Software License, Version 1.0. (See
* accompanying file LICENSE.txt)
*/
#include <tuple>
#include <string>
#include <thread>
#include <iostream>
#include <boost/asio.hpp>
#include <boost/redis.hpp>
// Include this in no more than one .cpp file.
#include <boost/redis/src.hpp>
namespace net = boost::asio;
namespace redis = boost::redis;
using connection = redis::connection;
using boost::redis::request;
using boost::redis::response;
template <class Response>
auto exec(std::shared_ptr<connection> conn, request const& req, Response& resp)
{
net::dispatch(
conn->get_executor(),
net::deferred([&]() { return conn->async_exec(req, resp, net::deferred); }))
(net::use_future).get();
}
auto logger = [](auto const& ec)
{ std::clog << "Run: " << ec.message() << std::endl; };
auto main(int argc, char * argv[]) -> int
{
try {
std::string host = "127.0.0.1";
std::string port = "6379";
if (argc == 3) {
host = argv[1];
port = argv[2];
}
net::io_context ioc{1};
auto conn = std::make_shared<connection>(ioc);
// Resolves the address
net::ip::tcp::resolver resv{ioc};
auto const res = resv.resolve(host, port);
// Connect to Redis
net::connect(conn->next_layer(), res);
// Starts a thread that will can io_context::run on which
// the connection will run.
std::thread t{[conn, &ioc]() {
conn->async_run(logger);
ioc.run();
}};
request req;
req.push("HELLO", 3);
req.push("PING");
req.push("QUIT");
response<boost::redis::ignore_t, std::string, boost::redis::ignore_t> resp;
// Executes commands synchronously.
exec(conn, req, resp);
std::cout << "Response: " << std::get<1>(resp) << std::endl;
t.join();
} catch (std::exception const& e) {
std::cerr << e.what() << std::endl;
}
}