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78 lines
2.0 KiB
C++
78 lines
2.0 KiB
C++
/* Copyright (c) 2019 - 2021 Marcelo Zimbres Silva (mzimbres at gmail dot 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 <aedis/aedis.hpp>
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#include "utils.ipp"
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using aedis::command;
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using aedis::resp3::serializer;
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using aedis::resp3::async_read;
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using aedis::resp3::adapt;
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namespace net = aedis::net;
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using net::async_write;
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using net::buffer;
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/* Illustrates the basic principles.
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Sends some commands to the redis server and read the responses
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back. The hello command is always required after the connection has
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been stablished.
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Note: In general connections will be kept open and used for
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multiple requests, see for example echo_server.cpp.
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*/
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net::awaitable<void> ping()
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{
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try {
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auto socket = co_await connect();
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// Creates and sends the request.
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serializer<command> sr;
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sr.push(command::hello, 3);
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sr.push(command::flushall);
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sr.push(command::ping);
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sr.push(command::incr, "key");
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sr.push(command::quit);
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co_await async_write(socket, buffer(sr.request()));
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// Expected responses.
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int incr;
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std::string ping;
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// Reads the responses.
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std::string buffer;
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std::size_t n = 0;
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n += co_await async_read(socket, buffer); // hello (ignored)
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n += co_await async_read(socket, buffer); // flushall
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n += co_await async_read(socket, buffer, adapt(ping));
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n += co_await async_read(socket, buffer, adapt(incr));
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n += co_await async_read(socket, buffer);
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// Print the responses.
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std::cout
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<< "Bytes read: " << n << "\n"
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<< "ping: " << ping << "\n"
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<< "incr: " << incr << "\n";
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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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int main()
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{
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net::io_context ioc;
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co_spawn(ioc, ping(), net::detached);
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ioc.run();
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}
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/// \example intro.cpp
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