Deallocates ressources allocated by libevent for the
EventBase
object.
Warning
The
EventBase::free()
method doesn't destruct the object itself. To destruct the
object completely call
unset()
,
or assign
null
.
This method does not deallocate or detach any of the evens that are
currently associated with the
EventBase
object, or
close any of their socquets - beware.
