devesh
11/20/2006 8:40:00 PM
Hi Folks,
I want an efficient implementation of an Ipaddress class. The ones I
have seen (for eg: lib/ipaddr.rb) all represent things internally in
the form of a Bignum. And that is turning out to be a bottleneck for
me. Ideally I would want to create some kind of a class, in which I can
wrap in a normal C int and then operate with it directly. Does anyone
know of how to do this ?. Another way would be to create a struct
wrapping this int and then access that from my C extension (Like it is
done with the Jukebox example in the Pickaxe book). I am new to ruby
and to mixing C and ruby. What would be a good way to achieve the
following interface:
class IPAddress
# Some code to declare @magicCInt as a C type int
# magicCInt is a good'ol C type int (of full 32 bits)
# It is not a Bignum/Fixnum
def initizialize
@magicCInt = 0
end
def & (other)
p = self.clone
p.magicCInt &= other.magicCInt
end
def == (other)
return (other.magicCInt == self.magicCInt)
end
alias_method :== :eql?
#.. And other methods
end
Can I achieve this using RubyInline. It would be great if the more
experienced of you could provide me with a code sketch to get me
started ?
PS: My apologies if this question has been asked before, I would be
grateful if you could point me to some other thread which seeks to
answer this.
PPS: I am writing some networkingish code and comparing two ipaddress's
is sadly my biggest bottleneck (Bignum#==)
Thanks,
-Devesh