Use the following function in an event handler to return from last nested call to
This function sets the flag associated with a multinode model causing the function
qsmm_node_call_default to exit.
The latter function resets that flag before sending an event
QSMM_EVT_NODE_ENTER to the instruction class set and before sending an event
QSMM_EVT_ACTIVATE to an instruction meta-class and checks the flag after processing these events.
In case of calling the function
qsmm_return_to_caller_node while processing the event
QSMM_EVT_ACTIVATE by the instruction meta-class,
qsmm_node_call_default ignores a set instruction outcome.