Dynamic data in capnproto

[al.z....@gmail.com]

Is it possible to use capnproto with "dynamic" data. I.e. for instance push/delete data to/from list. In other word can one use capnproto as c++ stl?

[Kenton Varda]

Hi,

Cap'n Proto is not a good format for mutable in-memory structures. Lists cannot dynamically resize, and if you remove an object the space allocated for it is not freed (until you free the entire message). This is due to Cap'n Proto's use of arena-style allocation which is necessary to allow for zero-copy I/O.

This is covered in the docs in the "Tips and Best Practices" section here:

https://capnproto.org/cxx.html#tips-and-best-practices

-Kenton

On Mon, Nov 18, 2019 at 4:56 PM <al.z....@gmail.com> wrote:

Is it possible to use capnproto with "dynamic" data. I.e. for instance push/delete data to/from list. In other word can one use capnproto as c++ stl?

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