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swarm/: Enable advanced dialing requests (#2317)

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Enable advanced dialing requests both on `Swarm` and via
`NetworkBehaviourAction`. Users can now trigger a dial with a specific
set of addresses, optionally extended via
`NetworkBehaviour::addresses_of_peer`. In addition the whole process is
now modelled in a type safe way via the builder pattern.

Example of a `NetworkBehaviour` requesting a dial to a specific peer
with a set of addresses additionally extended through
`NetworkBehaviour::addresses_of_peer`:

```rust
NetworkBehaviourAction::Dial {
    opts: DialOpts::peer_id(peer_id)
              .condition(PeerCondition::Always)
              .addresses(addresses)
              .extend_addresses_through_behaviour()
              .build(),
    handler,
}
```

Example of a user requesting a dial to an unknown peer with a single
address via `Swarm`:

```rust
swarm1.dial(
    DialOpts::unknown_peer_id()
        .address(addr2.clone())
        .build()
)
```
This commit is contained in:
Max Inden
2021-11-15 14:17:23 +01:00
committed by GitHub
parent 144dc12fb6
commit 220f84a97f
53 changed files with 680 additions and 414 deletions
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18
protocols/gossipsub/src/behaviour.rs
View File

@ -41,8 +41,8 @@ use libp2p_core::{
multiaddr::Protocol::Ip6, ConnectedPoint, Multiaddr, PeerId,
};
use libp2p_swarm::{
DialPeerCondition, IntoProtocolsHandler, NetworkBehaviour, NetworkBehaviourAction,
NotifyHandler, PollParameters,
dial_opts::{self, DialOpts},
IntoProtocolsHandler, NetworkBehaviour, NetworkBehaviourAction, NotifyHandler, PollParameters,
};
use crate::config::{GossipsubConfig, ValidationMode};
@ -1046,9 +1046,10 @@ where
// Connect to peer
debug!("Connecting to explicit peer {:?}", peer_id);
let handler = self.new_handler();
self.events.push_back(NetworkBehaviourAction::DialPeer {
peer_id: *peer_id,
condition: DialPeerCondition::Disconnected,
self.events.push_back(NetworkBehaviourAction::Dial {
opts: DialOpts::peer_id(*peer_id)
.condition(dial_opts::PeerCondition::Disconnected)
.build(),
handler,
});
}
@ -1502,9 +1503,10 @@ where
// dial peer
let handler = self.new_handler();
self.events.push_back(NetworkBehaviourAction::DialPeer {
peer_id,
condition: DialPeerCondition::Disconnected,
self.events.push_back(NetworkBehaviourAction::Dial {
opts: DialOpts::peer_id(peer_id)
.condition(dial_opts::PeerCondition::Disconnected)
.build(),
handler,
});
}