Re: Is sendfile all that sexy?

[Peter Samuelson]

[Felix von Leitner]
> I don't know how Linux does it, but returning the first free file
> descriptor can be implemented as O(1) operation.

How exactly?  Maybe I'm being dense today.  Having used up the lowest
available fd, how do you find the next-lowest one, the next open()?  I
can't think of anything that isn't O(n).  (Sure you can amortize it
different ways by keeping lists of fds, etc.)

Peter
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