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Async.MQTT5 -> Boost.MQTT5

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Summary:
related to T15996

folder structure include/async_mqtt5 -> include/boost/mqtt5
namespace async_mqtt5 -> namespace boost::mqtt5
all tabs replaced with 4 spaces (because tabs are banned)
boost-like order of includes

TODO: fix all docs

Reviewers: ivica

Reviewed By: ivica

Subscribers: iljazovic, miljen

Differential Revision: https://repo.mireo.local/D33152
This commit is contained in:
Korina Šimičević
2025-01-13 16:11:41 +01:00
parent 1225cc778a
commit afc270f10e
136 changed files with 17834 additions and 17859 deletions
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190
example/receiver.cpp
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@@ -9,142 +9,142 @@
#ifdef BOOST_ASIO_HAS_CO_AWAIT
//[receiver
#include <iostream>
#include <string>
#include <boost/mqtt5/logger.hpp>
#include <boost/mqtt5/mqtt_client.hpp>
#include <boost/mqtt5/reason_codes.hpp>
#include <boost/mqtt5/types.hpp>
#include <boost/asio/as_tuple.hpp>
#include <boost/asio/co_spawn.hpp>
#include <boost/asio/deferred.hpp>
#include <boost/asio/detached.hpp>
#include <boost/asio/io_context.hpp>
#include <boost/asio/ip/tcp.hpp>
#include <boost/asio/signal_set.hpp>
#include <boost/asio/ip/tcp.hpp>
#include <async_mqtt5/logger.hpp>
#include <async_mqtt5/mqtt_client.hpp>
#include <async_mqtt5/reason_codes.hpp>
#include <async_mqtt5/types.hpp>
#include <iostream>
#include <string>
struct config {
std::string brokers = "broker.hivemq.com";
uint16_t port = 1883;
std::string client_id = "async_mqtt5_tester";
std::string brokers = "broker.hivemq.com";
uint16_t port = 1883;
std::string client_id = "async_mqtt5_tester";
};
// Modified completion token that will prevent co_await from throwing exceptions.
constexpr auto use_nothrow_awaitable = boost::asio::as_tuple(boost::asio::deferred);
// client_type with logging enabled
using client_type = async_mqtt5::mqtt_client<
boost::asio::ip::tcp::socket, std::monostate /* TlsContext */, async_mqtt5::logger
using client_type = boost::mqtt5::mqtt_client<
boost::asio::ip::tcp::socket, std::monostate /* TlsContext */, boost::mqtt5::logger
>;
// client_type without logging
//using client_type = async_mqtt5::mqtt_client<boost::asio::ip::tcp::socket>;
//using client_type = boost::mqtt5::mqtt_client<boost::asio::ip::tcp::socket>;
boost::asio::awaitable<bool> subscribe(client_type& client) {
// Configure the request to subscribe to a Topic.
async_mqtt5::subscribe_topic sub_topic = async_mqtt5::subscribe_topic{
"test" /* topic */,
async_mqtt5::subscribe_options {
async_mqtt5::qos_e::exactly_once, // All messages will arrive at QoS 2.
async_mqtt5::no_local_e::no, // Forward message from Clients with same ID.
async_mqtt5::retain_as_published_e::retain, // Keep the original RETAIN flag.
async_mqtt5::retain_handling_e::send // Send retained messages when the subscription is established.
}
};
// Configure the request to subscribe to a Topic.
boost::mqtt5::subscribe_topic sub_topic = boost::mqtt5::subscribe_topic{
"test" /* topic */,
boost::mqtt5::subscribe_options {
boost::mqtt5::qos_e::exactly_once, // All messages will arrive at QoS 2.
boost::mqtt5::no_local_e::no, // Forward message from Clients with same ID.
boost::mqtt5::retain_as_published_e::retain, // Keep the original RETAIN flag.
boost::mqtt5::retain_handling_e::send // Send retained messages when the subscription is established.
}
};
// Subscribe to a single Topic.
auto&& [ec, sub_codes, sub_props] = co_await client.async_subscribe(
sub_topic, async_mqtt5::subscribe_props {}, use_nothrow_awaitable
);
// Note: you can subscribe to multiple Topics in one mqtt_client::async_subscribe call.
// Subscribe to a single Topic.
auto&& [ec, sub_codes, sub_props] = co_await client.async_subscribe(
sub_topic, boost::mqtt5::subscribe_props {}, use_nothrow_awaitable
);
// Note: you can subscribe to multiple Topics in one mqtt_client::async_subscribe call.
// An error can occur as a result of:
// a) wrong subscribe parameters
// b) mqtt_client::cancel is called while the Client is in the process of subscribing
if (ec)
std::cout << "Subscribe error occurred: " << ec.message() << std::endl;
else
std::cout << "Result of subscribe request: " << sub_codes[0].message() << std::endl;
// An error can occur as a result of:
// a) wrong subscribe parameters
// b) mqtt_client::cancel is called while the Client is in the process of subscribing
if (ec)
std::cout << "Subscribe error occurred: " << ec.message() << std::endl;
else
std::cout << "Result of subscribe request: " << sub_codes[0].message() << std::endl;
co_return !ec && !sub_codes[0]; // True if the subscription was successfully established.
co_return !ec && !sub_codes[0]; // True if the subscription was successfully established.
}
boost::asio::awaitable<void> subscribe_and_receive(
const config& cfg, client_type& client
const config& cfg, client_type& client
) {
// Configure the Client.
// It is mandatory to call brokers() and async_run() to configure the Brokers to connect to and start the Client.
client.brokers(cfg.brokers, cfg.port) // Broker that we want to connect to.
.credentials(cfg.client_id) // Set the Client Identifier. (optional)
.async_run(boost::asio::detached); // Start the client.
// Configure the Client.
// It is mandatory to call brokers() and async_run() to configure the Brokers to connect to and start the Client.
client.brokers(cfg.brokers, cfg.port) // Broker that we want to connect to.
.credentials(cfg.client_id) // Set the Client Identifier. (optional)
.async_run(boost::asio::detached); // Start the client.
// Before attempting to receive an Application Message from the Topic we just subscribed to,
// it is advisable to verify that the subscription succeeded.
// It is not recommended to call mqtt_client::async_receive if you do not have any
// subscription established as the corresponding handler will never be invoked.
if (!(co_await subscribe(client)))
co_return;
// Before attempting to receive an Application Message from the Topic we just subscribed to,
// it is advisable to verify that the subscription succeeded.
// It is not recommended to call mqtt_client::async_receive if you do not have any
// subscription established as the corresponding handler will never be invoked.
if (!(co_await subscribe(client)))
co_return;
for (;;) {
// Receive an Appplication Message from the subscribed Topic(s).
auto&& [ec, topic, payload, publish_props] = co_await client.async_receive(use_nothrow_awaitable);
for (;;) {
// Receive an Appplication Message from the subscribed Topic(s).
auto&& [ec, topic, payload, publish_props] = co_await client.async_receive(use_nothrow_awaitable);
if (ec == async_mqtt5::client::error::session_expired) {
// The Client has reconnected, and the prior session has expired.
// As a result, any previous subscriptions have been lost and must be reinstated.
if (co_await subscribe(client))
continue;
else
break;
} else if (ec)
break;
if (ec == boost::mqtt5::client::error::session_expired) {
// The Client has reconnected, and the prior session has expired.
// As a result, any previous subscriptions have been lost and must be reinstated.
if (co_await subscribe(client))
continue;
else
break;
} else if (ec)
break;
std::cout << "Received message from the Broker" << std::endl;
std::cout << "\t topic: " << topic << std::endl;
std::cout << "\t payload: " << payload << std::endl;
}
std::cout << "Received message from the Broker" << std::endl;
std::cout << "\t topic: " << topic << std::endl;
std::cout << "\t payload: " << payload << std::endl;
}
co_return;
co_return;
}
int main(int argc, char** argv) {
config cfg;
config cfg;
if (argc == 4) {
cfg.brokers = argv[1];
cfg.port = uint16_t(std::stoi(argv[2]));
cfg.client_id = argv[3];
}
if (argc == 4) {
cfg.brokers = argv[1];
cfg.port = uint16_t(std::stoi(argv[2]));
cfg.client_id = argv[3];
}
// Initialise execution context.
boost::asio::io_context ioc;
// Initialise execution context.
boost::asio::io_context ioc;
// Initialise the Client to connect to the Broker over TCP.
client_type client(ioc, {} /* tls_context */, async_mqtt5::logger(async_mqtt5::log_level::info));
// Initialise the Client to connect to the Broker over TCP.
client_type client(ioc, {} /* tls_context */, boost::mqtt5::logger(boost::mqtt5::log_level::info));
// Set up signals to stop the program on demand.
boost::asio::signal_set signals(ioc, SIGINT, SIGTERM);
signals.async_wait([&client](async_mqtt5::error_code /* ec */, int /* signal */) {
// After we are done with publishing all the messages, cancel the timer and the Client.
// Alternatively, use mqtt_client::async_disconnect.
client.cancel();
});
// Set up signals to stop the program on demand.
boost::asio::signal_set signals(ioc, SIGINT, SIGTERM);
signals.async_wait([&client](boost::mqtt5::error_code /* ec */, int /* signal */) {
// After we are done with publishing all the messages, cancel the timer and the Client.
// Alternatively, use mqtt_client::async_disconnect.
client.cancel();
});
// Spawn the coroutine.
co_spawn(
ioc,
subscribe_and_receive(cfg, client),
[](std::exception_ptr e) {
if (e)
std::rethrow_exception(e);
}
);
// Spawn the coroutine.
co_spawn(
ioc,
subscribe_and_receive(cfg, client),
[](std::exception_ptr e) {
if (e)
std::rethrow_exception(e);
}
);
// Start the execution.
ioc.run();
// Start the execution.
ioc.run();
}
//]
@@ -154,7 +154,7 @@ int main(int argc, char** argv) {
#include <iostream>
int main() {
std::cout << "This example requires C++20 standard to compile and run" << std::endl;
std::cout << "This example requires C++20 standard to compile and run" << std::endl;
}
#endif