I'll try to explain my need:
- I have a generic library I created, called
myIOT.h
. - This class have a pre-configured MQTT and wifi setup.
- Inside this library there is a
mqtt_callback
function, for all generic commands, such asboot_time
andconnection_status
. - BUT, this library serves in several of my iot device's code, that each one has a few more mqtt commands, that is tailored just for s specific device, and I looking for a way that
iot.mqtt_callback(ext_mqtt_func)
will get as parameter a local ( which belong to the sketch and not to the library ), that will have the additional code needed.
I'll try to explain more clearly:
void myIOT::mqtt_callback(ext_mqtt_func){
if (a == true ) {
do something
};
else {
ext_mqtt_func()); // calling another fucntion that belongs to sketch and not library
}