Remove p2pservice networkcodec trait #2388
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acerone85
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xgreenx,
Dentosal and
MitchTurner
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acerone85
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netrome
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Oct 24, 2024
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Generally I like the decoupling you're achieving here. I think we could do some simplifications by reducing the number of traits, and for example just having one GossipSubCodec trait and oneRequestResponseReadWrite trait. Both of these could be generic over the data format if needed.
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rafal-ch
previously approved these changes
Feb 18, 2025
rafal-ch
previously approved these changes
Feb 18, 2025
netrome
previously approved these changes
Feb 18, 2025
crates/services/p2p/src/codecs.rs
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| /// Returns the serialized object as a slice. | ||
| fn as_bytes(&self) -> Cow<[u8]>; | ||
| /// Returns the serialized object as a Vector. | ||
| fn to_vec(self) -> Vec<u8>; |
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I think using Cow is strictly better than Vec here. See my comment in the other thread.
xgreenx
previously approved these changes
Feb 18, 2025
This reverts commit d4e2198.
xgreenx
reviewed
Feb 18, 2025
netrome
previously approved these changes
Feb 19, 2025
…odec-trait # Conflicts: # CHANGELOG.md
Rename function to higlight how it works
xgreenx
approved these changes
Feb 20, 2025
netrome
approved these changes
Feb 20, 2025
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Linked Issues/PRs
Closes #2368
Description
In the P2P service, we couple together GossipSub and RequestResponse codecs in a
NetworkCodectrait. In practice, this coupling is not necessary as the two codecs use different Messages and different logics for encoding/deconding messages. The only thing that they share in common is using Postcard as the data format to serialize and deserialize data, but this is not made clear in the network trait.This PR is a rework of Codecs in the libp2p service, which deletes the
NetworkCodectrait and therefore the coupling betweenGossipSubCodecandRequestResponseCodec. In particular:are moved to a structPostcardthat implements theDataFormat` trait,BoundedCodecstruct that implements theRequestResponse::Codectrait for anyDataFormatsupersedes the oldPostcardCodec.UnboundedCodecstruct that implements theGossipsubCodec trait for anyDataFormatsupersedes the oldPostcardCodec`,request_response::protocolsmodule`,GossipsubandRequestResponse.TODO:
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