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89 lines
2.6 KiB
C++
89 lines
2.6 KiB
C++
/* Copyright (c) 2019 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 <string_view>
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#include <aedis/aedis.hpp>
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#include <aedis/src.hpp>
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#include "lib/net_utils.hpp"
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namespace resp3 = aedis::resp3;
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using aedis::redis::command;
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using resp3::type;
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using aedis::redis::make_serializer;
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using 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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using net::dynamic_buffer;
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/* In the serialization.cpp example we saw how to serialize and
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deserialize Redis responses in user custom types. When serializing
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in custom containers users have to define their own response
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adapter. This example illustrates how to do this.
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*/
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// An adapter that prints the data it receives in the screen.
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struct myadapter {
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void operator()(
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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&)
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{
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std::cout
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<< "Type: " << t << "\n"
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<< "Aggregate_size: " << aggregate_size << "\n"
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<< "Depth: " << depth << "\n"
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<< "Data: " << std::string_view(data, size) << "\n"
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<< "----------------------" << "\n";
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}
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};
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net::awaitable<void> adapter_example()
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{
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try {
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auto socket = co_await connect();
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auto list = {"one", "two", "three"};
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// Creates and sends the request.
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std::string request;
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auto sr = make_serializer(request);
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sr.push(command::hello, 3);
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sr.push(command::flushall);
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sr.push_range(command::rpush, "key", std::cbegin(list), std::cend(list));
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sr.push(command::lrange, "key", 0, -1);
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sr.push(command::quit);
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co_await async_write(socket, buffer(request));
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// Reads the responses.
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std::string rbuffer;
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co_await resp3::async_read(socket, dynamic_buffer(rbuffer)); // hello
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co_await resp3::async_read(socket, dynamic_buffer(rbuffer)); // flushall
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co_await resp3::async_read(socket, dynamic_buffer(rbuffer)); // rpush
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co_await resp3::async_read(socket, dynamic_buffer(rbuffer), myadapter{}); // lrange
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co_await resp3::async_read(socket, dynamic_buffer(rbuffer)); // quit
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} catch (std::exception const& e) {
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std::cerr << e.what() << std::endl;
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exit(EXIT_FAILURE);
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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, adapter_example(), net::detached);
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ioc.run();
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}
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