H. Peter Anvin [...@zytor.com] wrote:
> On 10/21/2009 01:26 PM, Michael Kerrisk wrote:
>>
>> My question here is: what does "3" actually mean? In general, system
>> calls have not followed any convention of numbering to indicate
>> successive versions -- clone2() being the one possible exception that
>> I know of.
>>
>
> "3" is number of arguments.
To me, it is a version number.
mmap() and mmap2() both have 6 parameters.
Besides if wait4() were born before wait3(), would it still be wait4() :-)
But I see that it is hard to get one-convention-that-fits-all.
> It's better than "extended" or something
> like that simply because "extended" just means "more than", and a number
> at least tells you *how much more than*.
And extended assumes we wont extend again.
An informal poll of reviewers has clone3() with a slight advantage :-)
clone_extended() camp: Serge Hallyn, Kerrisk, Louis Rilling,
clone3(): Sukadev, H. Peter Anvin, Oren, Matt Helsley.
I like clone3() but am not insisting on it. I just want a name...
Sukadev
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