[External] : Re: MemorySegment APIs for reading and writing strings with known lengths

Liam Miller-Cushon cushon at google.com
Wed Nov 5 12:45:07 UTC 2025


Thanks Maurizio, considering all of this holistically makes sense. I look
forward to hearing your thoughts on it once you've had time to consider the
options :)

On Tue, Nov 4, 2025 at 11:21 PM Maurizio Cimadamore <
maurizio.cimadamore at oracle.com> wrote:

>
> On 04/11/2025 15:23, Jorn Vernee wrote:
>
> Do you have thoughts on the best way to proceed here? Do you think it
> makes sense to do incrementally, or would you prefer to see all of these
> related changes happen together under a single issue?
>
> I don't have a preference. Since you've already started a PR for enhancing
> getString, maybe you can focus on that for now, and we'll file followup
> issues for the others. Splitting things up might be nice since there's
> probably some benchmarking work involved for each. I think the copy and
> allocateFrom overload can be done in one patch though.
>
> I think I sort of do have a preference :-)
>
> My feeling is that we're dealing with 2-3 different APIs that are all
> tightly interconnected. We have some ideas on how to solve some (I think
> getString with explicit length seems the most settled), but we're still
> playing with other ideas for the others (like copy, or memory segment
> views). And we also have to think about relationship with SegmentAllocator.
>
> For this reason, I'd prefer to think about it more holistically and think
> about all the related APIs at once.
>
> Once we get a consensus on how to proceed we can decide whether to pursue
> them all in a single PR, or split them into separate PRs.
>
> But it would be unfortunate, I think, if the first PR would later reveal
> to be a dead end for the other use cases.
>
> I plan to think about this some more (but I need some more time).
>
> Cheers
> Maurizio
>
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