Peer discovery with mDNS can be very slow, particularly if the first mDNS query is lost. This patch resolves it by adjusting the timer with an adaptive initial interval. We start with a very short timer (500 ms). If a peer is discovered before the end of the timer, then the timer is reset to the normal query interval value (300s), otherwise the timer's value is multiplied by 2 until it reaches the normal query interval value.
Related: https://github.com/libp2p/rust-libp2p/pull/3323.
Resolves: https://github.com/libp2p/rust-libp2p/issues/3319.
Pull-Request: #3975.
The `unreachable_pub` lint makes us aware of uses of `pub` that are not actually reachable from the crate root. This is considered good because it means reading a `pub` somewhere means it is actually public API. Some of our crates are quite large and keeping their entire API surface in your head is difficult.
We should strive for most items being `pub(crate)`. This lint helps us enforce that.
Pull-Request: #3735.
This patch deprecates 3 out of 4 functions on `PollParameters`:
- `local_peer_id`
- `listened_addresses`
- `external_addresses`
The addresses can be obtained by inspecting the `FromSwarm` event. To make this easier, we introduce two utility structs in `libp2p-swarm`:
- `ExternalAddresses`
- `ListenAddresses`
A node's `PeerId` is always known to the caller, thus we can require them to pass it in.
Related: #3124.
Allow users to choose between async-io and tokio runtime
in the mdns protocol implementation. `async-io` is a default
feature, with an additional `tokio` feature.
Fix high CPU usage with Tokio library.
Handling multiple interfaces in mdns. The socket logic was moved into an
instance while the mdns behaviour watches for interface changes and creates new
instances with a dedicated send/recv socket.
Co-authored-by: Max Inden <mail@max-inden.de>
