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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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5
misc/metrics/examples/metrics.rs
View File

@ -50,6 +50,7 @@
use futures::executor::block_on;
use futures::stream::StreamExt;
use libp2p::core::Multiaddr;
use libp2p::metrics::{Metrics, Recorder};
use libp2p::ping::{Ping, PingConfig};
use libp2p::swarm::SwarmEvent;
@ -74,8 +75,8 @@ fn main() -> Result<(), Box<dyn Error>> {
);
swarm.listen_on("/ip4/0.0.0.0/tcp/0".parse()?)?;
if let Some(addr) = std::env::args().nth(1) {
let remote = addr.parse()?;
swarm.dial_addr(remote)?;
let remote: Multiaddr = addr.parse()?;
swarm.dial(remote)?;
tide::log::info!("Dialed {}", addr)
}