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kqueue clarification

OK this is from kqueue man page:

"kevent() returns the number of events placed in the eventlist, up to
the value given by nevents"

What I find confusing is that kevent() returns int data type, however
the length of eventlist given by nevents can be up to size_t.

Suppose you have more than INT_MAX events in kqueue, what are the
semantics of kevent()?

1. kevent() returns up to INT_MAX events, and advances internal pointer
to the next segment of up to INT_MAX events.


2. kevent() overflows int and returns a negative number.

This also begs another question: is there some sort of internal limit
on the total number of events supported by kqueue, or it can be as big
as your RAM allows?

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