typedef axlPointer(* VortexIoCreateFdGroup)(VortexIoWaitingFor wait_to)

IO handler definition to allow defining the method to be invoked while createing a new fd set.

wait_to Allows to configure the file set to be prepared to be used for the set of operations provided.
A newly created fd set pointer, opaque to Vortex, to a structure representing the fd set, that will be used to perform IO waiting operation at the Vortex IO module.