3 years, 7 months ago.
Missing Void* reference in subscribe callback
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
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