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Subscribe to all required gossipsub topics

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This commit is contained in:
Age Manning 2019-08-08 12:06:46 +10:00
parent ce50616032
commit d83fa67068
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GPG Key ID: 05EED64B79E06A93
3 changed files with 29 additions and 12 deletions
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13
beacon_node/eth2-libp2p/src/config.rs
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@ -6,9 +6,14 @@ use serde_derive::{Deserialize, Serialize};
use std::path::PathBuf;
use std::time::Duration;
/// The beacon node topic string to subscribe to.
/// The gossipsub topic names.
pub const TOPIC_PREFIX: &str = "eth2";
pub const TOPIC_ENCODING_POSTFIX: &str = "ssz";
pub const BEACON_BLOCK_TOPIC: &str = "beacon_block";
pub const BEACON_ATTESTATION_TOPIC: &str = "beacon_attestation";
pub const VOLUNTARY_EXIT_TOPIC: &str = "voluntary_exit";
pub const PROPOSER_SLASHING_TOPIC: &str = "proposer_slashing";
pub const ATTESTER_SLASHING_TOPIC: &str = "attester_slashing";
pub const SHARD_TOPIC_PREFIX: &str = "shard";
#[derive(Clone, Debug, Serialize, Deserialize)]
@ -63,10 +68,10 @@ impl Default for Config {
discovery_address: "127.0.0.1".parse().expect("valid ip address"),
discovery_port: 9000,
max_peers: 10,
//TODO: Set realistic values for production
// Note: This defaults topics to plain strings. Not hashes
// Note: The topics by default are sent as plain strings. Hashes are an optional
// parameter.
gs_config: GossipsubConfigBuilder::new()
.max_transmit_size(1_000_000)
.max_transmit_size(1_048_576)
.heartbeat_interval(Duration::from_secs(20))
.build(),
boot_nodes: vec![],

4
beacon_node/eth2-libp2p/src/lib.rs
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@ -10,9 +10,7 @@ pub mod rpc;
mod service;
pub use behaviour::PubsubMessage;
pub use config::{
Config as NetworkConfig, BEACON_ATTESTATION_TOPIC, BEACON_BLOCK_TOPIC, SHARD_TOPIC_PREFIX,
};
pub use config::{Config as NetworkConfig, *};
pub use libp2p::gossipsub::{Topic, TopicHash};
pub use libp2p::multiaddr;
pub use libp2p::Multiaddr;

24
beacon_node/eth2-libp2p/src/service.rs
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@ -1,10 +1,10 @@
use crate::behaviour::{Behaviour, BehaviourEvent, PubsubMessage};
use crate::config::*;
use crate::error;
use crate::multiaddr::Protocol;
use crate::rpc::RPCEvent;
use crate::NetworkConfig;
use crate::{Topic, TopicHash};
use crate::{BEACON_ATTESTATION_TOPIC, BEACON_BLOCK_TOPIC};
use futures::prelude::*;
use futures::Stream;
use libp2p::core::{
@ -87,10 +87,24 @@ impl Service {
// subscribe to default gossipsub topics
let mut topics = vec![];
//TODO: Handle multiple shard attestations. For now we simply use a separate topic for
// attestations
topics.push(Topic::new(BEACON_ATTESTATION_TOPIC.into()));
topics.push(Topic::new(BEACON_BLOCK_TOPIC.into()));
/* Here we subscribe to all the required gossipsub topics required for interop.
* The topic builder adds the required prefix and postfix to the hardcoded topics that we
* must subscribe to.
*/
let topic_builder = |topic| {
Topic::new(format!(
"/{}/{}/{}",
TOPIC_PREFIX, topic, TOPIC_ENCODING_POSTFIX,
))
};
topics.push(topic_builder(BEACON_BLOCK_TOPIC));
topics.push(topic_builder(BEACON_ATTESTATION_TOPIC));
topics.push(topic_builder(VOLUNTARY_EXIT_TOPIC));
topics.push(topic_builder(PROPOSER_SLASHING_TOPIC));
topics.push(topic_builder(ATTESTER_SLASHING_TOPIC));
// Add any topics specified by the user
topics.append(
&mut config
.topics