Important changes to forums and questions
All forums and questions are now archived. To start a new conversation or read the latest updates go to forums.mbed.com.
8 years, 11 months ago.
Missing Void* reference in subscribe callback
Hey,
I started writing an application using the Paho Embedded C++/C client libs. Everything works as expected, except of the subscribe callbacks.
Since my software is written in C++, I can't find a way to pass a context variable into the callback. So currently don't see a way to access my objects from within the callback.
I've seen in the API of the Paho MQTT C Client for Unix / Mac / Windows that it accepts for example a void* to pass the context into the callback. See: http://www.eclipse.org/paho/files/mqttdoc/Cclient/_m_q_t_t_client_8h.html#aad27d07782991a4937ebf2f39a021f83
Am I missing something or what is the best strategy to access objects outside of the callback?
The only thing I could think is some static variables in a class.
Any hints are very much appreciated, Tobias
Question relating to:
