mqtt api: future style

opencv-motion-detect/inc/spdlog/details/logger_impl.h

@@ -414,6 +414,7 @@ inline void spdlog::logger::default_err_handler_(const std::string &msg)
     char date_buf[100];
     std::strftime(date_buf, sizeof(date_buf), "%Y-%m-%d %H:%M:%S", &tm_time);
     fmt::print(stderr, "[*** LOG ERROR ***] [{}] [{}] {}\n", date_buf, name(), msg);
+    //throw std::runtime_error("aaa");
 }
 
 inline void spdlog::logger::incr_msg_counter_(details::log_msg &msg)

opencv-motion-detect/mqtt_helper.hpp

@@ -364,7 +364,7 @@ void on_conn_fail(void* context, MQTTAsync_failureData* response)
 void on_sent(void* context, MQTTAsync_successData* response)
 {
 	MqttHelper *self = (MqttHelper *) context;
-	spdlog::debug("Message delivery confirmed to {}", response->alt.pub.destinationName);
+	spdlog::debug("Message delivery confirmed, tok: {}", response->token);
 }
 
 void on_connected(void* context, MQTTAsync_successData* response)