fluencelabs/rust-libp2p
1
0
Fork 0
mirror of https://github.com/fluencelabs/rust-libp2p synced 2025-06-12 01:21:21 +00:00
Code Issues Projects Releases Wiki Activity

feat: report changes in supported protocols to ConnectionHandler

Browse Source 
With this patch, implementations of `ConnectionHandler` (which are typically composed in a tree) can exchange information about the supported protocols of a remote with each other via `ConnectionHandlerEvent::ReportRemoteProtocols`. The provided `ProtocolSupport` enum can describe either additions or removals of the remote peer's protocols.

This information is aggregated in the connection and passed down to the `ConnectionHandler` via `ConnectionEvent::RemoteProtocolsChange`.

Similarly, if the listen protocols of a connection change, all `ConnectionHandler`s on the connection will be notified via `ConnectionEvent::LocalProtocolsChange`. This will allow us to eventually remove `PollParameters` from `NetworkBehaviour`.

This pattern allows protocols on a connection to communicate with each other. For example, protocols like identify can share the list of (supposedly) supported protocols by the remote with all other handlers. A protocol like kademlia can accurately add and remove a remote from its routing table as a result.

Resolves: #2680.
Related: #3124.

Pull-Request: #3651.
This commit is contained in:
Thomas Eizinger
2023-05-08 16:36:30 +02:00
committed by GitHub
parent b8a7684153
commit b035fc80a0
30 changed files with 844 additions and 243 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
swarm/src/lib.rs
View File

@ -116,7 +116,7 @@ pub use behaviour::{
PollParameters, ToSwarm,
};
pub use connection::pool::ConnectionCounters;
pub use connection::{ConnectionError, ConnectionId};
pub use connection::{ConnectionError, ConnectionId, SupportedProtocols};
pub use executor::Executor;
pub use handler::{
ConnectionHandler, ConnectionHandlerEvent, ConnectionHandlerSelect, KeepAlive, OneShotHandler,