feat(swarm): allow configuration to idle connection timeout

examples/metrics/src/main.rs

@@ -26,12 +26,13 @@ use futures::stream::StreamExt;
 use libp2p::core::{upgrade::Version, Multiaddr, Transport};
 use libp2p::identity::PeerId;
 use libp2p::metrics::{Metrics, Recorder};
-use libp2p::swarm::{keep_alive, NetworkBehaviour, SwarmBuilder, SwarmEvent};
+use libp2p::swarm::{NetworkBehaviour, SwarmBuilder, SwarmEvent};
 use libp2p::{identify, identity, noise, ping, tcp, yamux};
 use log::info;
 use prometheus_client::registry::Registry;
 use std::error::Error;
 use std::thread;
+use std::time::Duration;
 
 mod http_service;
 
@@ -51,6 +52,7 @@ fn main() -> Result<(), Box<dyn Error>> {
         Behaviour::new(local_pub_key),
         local_peer_id,
     )
+    .idle_connection_timeout(Duration::from_secs(60))
     .build();
 
     swarm.listen_on("/ip4/0.0.0.0/tcp/0".parse()?)?;
@@ -87,13 +89,9 @@ fn main() -> Result<(), Box<dyn Error>> {
 }
 
 /// Our network behaviour.
-///
-/// For illustrative purposes, this includes the [`keep_alive::Behaviour`]) behaviour so the ping actually happen
-/// and can be observed via the metrics.
 #[derive(NetworkBehaviour)]
 struct Behaviour {
     identify: identify::Behaviour,
-    keep_alive: keep_alive::Behaviour,
     ping: ping::Behaviour,
 }
 
@@ -105,7 +103,6 @@ impl Behaviour {
                 "/ipfs/0.1.0".into(),
                 local_pub_key,
             )),
-            keep_alive: keep_alive::Behaviour,
         }
     }
 }

examples/ping-example/src/main.rs

@@ -24,10 +24,11 @@ use futures::prelude::*;
 use libp2p::core::upgrade::Version;
 use libp2p::{
     identity, noise, ping,
-    swarm::{keep_alive, NetworkBehaviour, SwarmBuilder, SwarmEvent},
+    swarm::{SwarmBuilder, SwarmEvent},
     tcp, yamux, Multiaddr, PeerId, Transport,
 };
 use std::error::Error;
+use std::time::Duration;
 
 #[async_std::main]
 async fn main() -> Result<(), Box<dyn Error>> {
@@ -42,7 +43,8 @@ async fn main() -> Result<(), Box<dyn Error>> {
         .boxed();
 
     let mut swarm =
-        SwarmBuilder::with_async_std_executor(transport, Behaviour::default(), local_peer_id)
+        SwarmBuilder::with_async_std_executor(transport, ping::Behaviour::default(), local_peer_id)
+            .idle_connection_timeout(Duration::from_secs(60)) // For illustrative purposes, keep idle connections alive for a minute so we can observe a few pings.
             .build();
 
     // Tell the swarm to listen on all interfaces and a random, OS-assigned
@@ -65,13 +67,3 @@ async fn main() -> Result<(), Box<dyn Error>> {
         }
     }
 }
-
-/// Our network behaviour.
-///
-/// For illustrative purposes, this includes the [`KeepAlive`](keep_alive::Behaviour) behaviour so a continuous sequence of
-/// pings can be observed.
-#[derive(NetworkBehaviour, Default)]
-struct Behaviour {
-    keep_alive: keep_alive::Behaviour,
-    ping: ping::Behaviour,
-}

examples/rendezvous/src/bin/rzv-discover.rs

@@ -24,7 +24,7 @@ use libp2p::{
     identity,
     multiaddr::Protocol,
     noise, ping, rendezvous,
-    swarm::{keep_alive, NetworkBehaviour, SwarmBuilder, SwarmEvent},
+    swarm::{NetworkBehaviour, SwarmBuilder, SwarmEvent},
     tcp, yamux, Multiaddr, PeerId, Transport,
 };
 use std::time::Duration;
@@ -50,10 +50,10 @@ async fn main() {
         MyBehaviour {
             rendezvous: rendezvous::client::Behaviour::new(key_pair.clone()),
             ping: ping::Behaviour::new(ping::Config::new().with_interval(Duration::from_secs(1))),
-            keep_alive: keep_alive::Behaviour,
         },
         PeerId::from(key_pair.public()),
     )
+    .idle_connection_timeout(Duration::from_secs(5))
     .build();
 
     swarm.dial(rendezvous_point_address.clone()).unwrap();
@@ -127,5 +127,4 @@ async fn main() {
 struct MyBehaviour {
     rendezvous: rendezvous::client::Behaviour,
     ping: ping::Behaviour,
-    keep_alive: keep_alive::Behaviour,
 }

examples/rendezvous/src/bin/rzv-identify.rs

@@ -22,7 +22,7 @@ use futures::StreamExt;
 use libp2p::{
     core::transport::upgrade::Version,
     identify, identity, noise, ping, rendezvous,
-    swarm::{keep_alive, NetworkBehaviour, SwarmBuilder, SwarmEvent},
+    swarm::{NetworkBehaviour, SwarmBuilder, SwarmEvent},
     tcp, yamux, Multiaddr, PeerId, Transport,
 };
 use std::time::Duration;
@@ -50,10 +50,10 @@ async fn main() {
             )),
             rendezvous: rendezvous::client::Behaviour::new(key_pair.clone()),
             ping: ping::Behaviour::new(ping::Config::new().with_interval(Duration::from_secs(1))),
-            keep_alive: keep_alive::Behaviour,
         },
         PeerId::from(key_pair.public()),
     )
+    .idle_connection_timeout(Duration::from_secs(5))
     .build();
 
     let _ = swarm.listen_on("/ip4/0.0.0.0/tcp/0".parse().unwrap());
@@ -133,5 +133,4 @@ struct MyBehaviour {
     identify: identify::Behaviour,
     rendezvous: rendezvous::client::Behaviour,
     ping: ping::Behaviour,
-    keep_alive: keep_alive::Behaviour,
 }

examples/rendezvous/src/bin/rzv-register.rs

@@ -22,7 +22,7 @@ use futures::StreamExt;
 use libp2p::{
     core::transport::upgrade::Version,
     identity, noise, ping, rendezvous,
-    swarm::{keep_alive, NetworkBehaviour, SwarmBuilder, SwarmEvent},
+    swarm::{NetworkBehaviour, SwarmBuilder, SwarmEvent},
     tcp, yamux, Multiaddr, PeerId, Transport,
 };
 use std::time::Duration;
@@ -46,10 +46,10 @@ async fn main() {
         MyBehaviour {
             rendezvous: rendezvous::client::Behaviour::new(key_pair.clone()),
             ping: ping::Behaviour::new(ping::Config::new().with_interval(Duration::from_secs(1))),
-            keep_alive: keep_alive::Behaviour,
         },
         PeerId::from(key_pair.public()),
     )
+    .idle_connection_timeout(Duration::from_secs(5))
     .build();
 
     // In production the external address should be the publicly facing IP address of the rendezvous point.
@@ -130,5 +130,4 @@ async fn main() {
 struct MyBehaviour {
     rendezvous: rendezvous::client::Behaviour,
     ping: ping::Behaviour,
-    keep_alive: keep_alive::Behaviour,
 }

examples/rendezvous/src/main.rs

@@ -24,7 +24,7 @@ use futures::StreamExt;
 use libp2p::{
     core::transport::upgrade::Version,
     identify, identity, noise, ping, rendezvous,
-    swarm::{keep_alive, NetworkBehaviour, SwarmBuilder, SwarmEvent},
+    swarm::{NetworkBehaviour, SwarmBuilder, SwarmEvent},
     tcp, yamux, PeerId, Transport,
 };
 use std::time::Duration;
@@ -48,10 +48,10 @@ async fn main() {
             )),
             rendezvous: rendezvous::server::Behaviour::new(rendezvous::server::Config::default()),
             ping: ping::Behaviour::new(ping::Config::new().with_interval(Duration::from_secs(1))),
-            keep_alive: keep_alive::Behaviour,
         },
         PeerId::from(key_pair.public()),
     )
+    .idle_connection_timeout(Duration::from_secs(5))
     .build();
 
     let _ = swarm.listen_on("/ip4/0.0.0.0/tcp/62649".parse().unwrap());
@@ -97,5 +97,4 @@ struct MyBehaviour {
     identify: identify::Behaviour,
     rendezvous: rendezvous::server::Behaviour,
     ping: ping::Behaviour,
-    keep_alive: keep_alive::Behaviour,
 }

interop-tests/src/lib.rs

@@ -3,8 +3,8 @@ use std::time::Duration;
 
 use anyhow::{bail, Context, Result};
 use futures::{FutureExt, StreamExt};
-use libp2p::swarm::{keep_alive, NetworkBehaviour, SwarmEvent};
-use libp2p::{identify, identity, ping, Multiaddr, PeerId};
+use libp2p::swarm::SwarmEvent;
+use libp2p::{identify, identity, ping, swarm::NetworkBehaviour, Multiaddr, PeerId};
 #[cfg(target_arch = "wasm32")]
 use wasm_bindgen::prelude::*;
 
@@ -33,8 +33,7 @@ pub async fn run_test(
     let mut swarm = swarm_builder(
         boxed_transport,
         Behaviour {
-            ping: ping::Behaviour::new(ping::Config::new().with_interval(Duration::from_secs(1))),
-            keep_alive: keep_alive::Behaviour,
+            ping: ping::Behaviour::new(ping::Config::new().with_interval(Duration::from_secs(10))),
             // Need to include identify until https://github.com/status-im/nim-libp2p/issues/924 is resolved.
             identify: identify::Behaviour::new(identify::Config::new(
                 "/interop-tests".to_owned(),
@@ -43,6 +42,7 @@ pub async fn run_test(
         },
         local_peer_id,
     )
+    .idle_connection_timeout(Duration::from_secs(5))
     .build();
 
     log::info!("Running ping test: {}", swarm.local_peer_id());
@@ -242,7 +242,6 @@ impl FromStr for SecProtocol {
 #[derive(NetworkBehaviour)]
 struct Behaviour {
     ping: ping::Behaviour,
-    keep_alive: keep_alive::Behaviour,
     identify: identify::Behaviour,
 }