Memory allocation for Message

[jwinarske]

I'm looking at a multi-language scenario. Where memory is being shared between Rust and Dart. It is possible to use a "zero copy buffer" and read/write from both sides.

Enter Tonic/Prost.

Is there a way to allocate the message buffers using a custom type such as a "zero copy buffer"? The goal is to avoid any additional memory operations - move/alloc/copy.

Dart side would simply encode/decode protobuf messages using the "zero copy buffer".

[LucioFranco]

The Message trait accepts a BufMut/Buf from the bytes crate. You can use these generic abstractions to provide what ever buffer you want to encode/decode.

[jwinarske]

Is there a working example of this anywhere?

[LucioFranco]

Not that I know of but the abstractions are there so if you just map your buffers to that it should work.