Function pamoja_mqtt_client_subscribe 

#[unsafe(no_mangle)]
pub unsafe extern "C" fn pamoja_mqtt_client_subscribe(
    client: *mut PamojaMqttClient,
    topic: *const c_char,
) -> PamojaStatus

Subscribes to a topic filter.

Returns

PamojaStatus::Ok once the subscription is registered, or an error status.

Safety

client must be a live handle from pamoja_mqtt_client_new and topic a valid null-terminated UTF-8 string.