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async_run's associated ex will not replace mqtt_client's default ex

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Summary: related to T13767

Reviewers: ivica

Reviewed By: ivica

Subscribers: miljen, iljazovic

Differential Revision: https://repo.mireo.local/D29383
This commit is contained in:
Korina Šimičević
2024-05-10 15:12:18 +02:00
parent 794f48e915
commit b2338d4135
8 changed files with 136 additions and 202 deletions
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15
example/hello_world_in_coro_multithreaded_env.cpp
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@ -28,15 +28,10 @@ boost::asio::awaitable<void> publish_hello_world(
assert(strand.running_in_this_thread());
// All these function calls will be executed by the strand that is executing the coroutine.
// All the completion handler's associated executors will be the same strand
// because the Client was constructed with it as the default associated executor,
// and no executors were associated with the async_run call.
// Note: you can spawn the coroutine in another strand that is different
// from the one used in constructing the Client.
// However, then you must bind the second strand to async_run's handler.
client.async_run(boost::asio::detached);
// All the completion handler's associated executors will be that same strand
// because the Client was constructed with it as the default associated executor.
client.brokers("<your-mqtt-broker>", 1883)
.async_run(boost::asio::detached);
auto&& [ec, rc, puback_props] = co_await client.async_publish<async_mqtt5::qos_e::at_least_once>(
"<your-mqtt-topic>", "Hello world!", async_mqtt5::retain_e::no,
@ -66,8 +61,6 @@ int main() {
// Create the Client with the explicit strand as the default associated executor.
client_type client(strand);
client.brokers("<your-mqtt-broker>", 1883);
// Spawn the coroutine.
// The executor that executes the coroutine must be the same executor
// that is the Client's default associated executor.