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82 lines
2.1 KiB
C++
82 lines
2.1 KiB
C++
/* Copyright (c) 2019 - 2021 Marcelo Zimbres Silva (mzimbres at gmail dot com)
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/// \example basic1.cpp
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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::node;
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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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/* Processes the responses in a loop using the helper queue.
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In most cases commands will be added dynamically to the request for
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example as users interact with the code. In order to process the
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responses asynchronously users have to keep a queue of the expected
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commands or use the one provided by the serializer class.
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The example below shows how to do it.
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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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serializer<command> sr;
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sr.push(command::hello, 3);
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sr.push(command::ping);
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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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std::string ping, quit;
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// Reads the responses.
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std::string buffer;
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while (!std::empty(sr.commands)) {
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switch (sr.commands.front()) {
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case command::ping:
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co_await async_read(socket, buffer, adapt(ping));
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break;
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case command::quit:
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co_await async_read(socket, buffer, adapt(quit));
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break;
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default:
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co_await async_read(socket, buffer);
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}
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sr.commands.pop();
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}
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// Print the responses.
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std::cout
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<< "Ping: " << ping << "\n"
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<< "Quit: " << quit
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<< std::endl;
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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 response_queue.cpp
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