Confused about the purpose of IOVec

[Rudi Grinberg]

It seems like the substring functor and its instantiations make IOVec redundant. OK, IOVec might have a couple of polymorphic operations like drop but it doesn’t seem enough to justify its existence. An example or two of when I’d prefer an IOVec over a bigsubstring/substring would be very helpful.

On a related note, is there a good example showing how to use Iobuf and why it’s useful? The docs are good but it’s complex enough that I need to see it in action.

Thanks,

Rudi.