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client/authority-discovery: Remove sentry node logic (#7368)

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* client/authority-discovery: Remove sentry node logic

The notion of sentry nodes has been deprecated (see [1] for details).
This commit removes support for sentry nodes in the
`client/authority-discovery` module.

While removing `Role::Sentry` this commit also introduces
`Role::Discover`, allowing a node to discover addresses of authorities
without publishing ones own addresses. This will be needed in Polkadot
for collator nodes.

[1] https://github.com/paritytech/substrate/issues/6845

* client/authority-discovery/service: Improve PeerId comment
This commit is contained in:
Max Inden
2020-10-26 11:06:56 +01:00
committed by GitHub
parent 52a49e7f51
commit 653868c01e
6 changed files with 69 additions and 214 deletions
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substrate/client/authority-discovery/src/lib.rs
+4 -3
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@@ -32,7 +32,7 @@ use futures::channel::{mpsc, oneshot};
use futures::Stream;
use sc_client_api::blockchain::HeaderBackend;
use sc_network::{config::MultiaddrWithPeerId, DhtEvent, Multiaddr, PeerId};
use sc_network::{DhtEvent, Multiaddr, PeerId};
use sp_authority_discovery::{AuthorityDiscoveryApi, AuthorityId};
use sp_runtime::traits::Block as BlockT;
use sp_api::ProvideRuntimeApi;
@@ -44,10 +44,11 @@ mod tests;
mod worker;
/// Create a new authority discovery [`Worker`] and [`Service`].
///
/// See the struct documentation of each for more details.
pub fn new_worker_and_service<Client, Network, Block, DhtEventStream>(
client: Arc<Client>,
network: Arc<Network>,
sentry_nodes: Vec<MultiaddrWithPeerId>,
dht_event_rx: DhtEventStream,
role: Role,
prometheus_registry: Option<prometheus_endpoint::Registry>,
@@ -62,7 +63,7 @@ where
let (to_worker, from_service) = mpsc::channel(0);
let worker = Worker::new(
from_service, client, network, sentry_nodes, dht_event_rx, role, prometheus_registry,
from_service, client, network, dht_event_rx, role, prometheus_registry,
);
let service = Service::new(to_worker);