mirror of
https://github.com/boostorg/redis.git
synced 2026-01-28 07:22:35 +00:00
110 lines
2.7 KiB
C++
110 lines
2.7 KiB
C++
/* Copyright (c) 2019 Marcelo Zimbres Silva (mzimbres@gmail.com)
|
|
*
|
|
* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at https://mozilla.org/MPL/2.0/.
|
|
*/
|
|
|
|
#include <string>
|
|
#include <iostream>
|
|
#include <charconv>
|
|
|
|
#include <aedis/aedis.hpp>
|
|
#include <aedis/src.hpp>
|
|
|
|
#include "lib/net_utils.hpp"
|
|
|
|
namespace resp3 = aedis::resp3;
|
|
using aedis::redis::make_serializer;
|
|
using aedis::redis::command;
|
|
using resp3::adapt;
|
|
|
|
namespace net = aedis::net;
|
|
using net::async_write;
|
|
using net::buffer;
|
|
using net::dynamic_buffer;
|
|
|
|
// Define the to_string and from_string functions for your own data
|
|
// types.
|
|
|
|
// The struct we would like to store in redis using our own
|
|
// serialization.
|
|
struct mydata {
|
|
int a;
|
|
int b;
|
|
};
|
|
|
|
// Serializes to Tab Separated Value (TSV).
|
|
std::string to_string(mydata const& obj)
|
|
{
|
|
return std::to_string(obj.a) + '\t' + std::to_string(obj.b);
|
|
}
|
|
|
|
// Deserializes TSV.
|
|
void
|
|
from_string(
|
|
mydata& obj,
|
|
char const* data,
|
|
std::size_t size,
|
|
std::error_code& ec)
|
|
{
|
|
auto const* end = data + size;
|
|
auto const* pos = std::find(data, end, '\t');
|
|
assert(pos != end); // Or use your own error code.
|
|
|
|
auto const res1 = std::from_chars(data, pos, obj.a);
|
|
if (res1.ec != std::errc()) {
|
|
ec = std::make_error_code(res1.ec);
|
|
return;
|
|
}
|
|
|
|
auto const res2 = std::from_chars(pos + 1, end, obj.b);
|
|
if (res2.ec != std::errc()) {
|
|
ec = std::make_error_code(res2.ec);
|
|
return;
|
|
}
|
|
}
|
|
|
|
net::awaitable<void> serialization()
|
|
{
|
|
try {
|
|
auto socket = co_await connect();
|
|
|
|
mydata obj{21, 22};
|
|
|
|
std::string request;
|
|
auto sr = make_serializer(request);
|
|
sr.push(command::hello, 3);
|
|
sr.push(command::flushall);
|
|
sr.push(command::set, "key", obj);
|
|
sr.push(command::get, "key");
|
|
sr.push(command::quit);
|
|
co_await async_write(socket, buffer(request));
|
|
|
|
// The response.
|
|
mydata get;
|
|
|
|
// Reads the responses.
|
|
std::string buffer;
|
|
co_await resp3::async_read(socket, dynamic_buffer(buffer)); // hello
|
|
co_await resp3::async_read(socket, dynamic_buffer(buffer)); // flushall
|
|
co_await resp3::async_read(socket, dynamic_buffer(buffer)); // set
|
|
co_await resp3::async_read(socket, dynamic_buffer(buffer), adapt(get));
|
|
co_await resp3::async_read(socket, dynamic_buffer(buffer)); // quit
|
|
|
|
// Print the responses.
|
|
std::cout << "get: a = " << get.a << ", b = " << get.b << "\n";
|
|
|
|
} catch (std::exception const& e) {
|
|
std::cerr << e.what() << std::endl;
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
}
|
|
|
|
int main()
|
|
{
|
|
net::io_context ioc;
|
|
co_spawn(ioc, serialization(), net::detached);
|
|
ioc.run();
|
|
}
|