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Make sure collators join the validation network (#1010)

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Collators need to join the validation network to tell its connected
relay chain peers the leaf they listen on. This is required to make the
Parachain validator send the signed statement to the collators as well.
This commit is contained in:
Bastian Köcher
2020-04-20 21:58:36 +02:00
committed by GitHub
parent 79dcce1674
commit fb2e0c0ca9
3 changed files with 29 additions and 13 deletions
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polkadot/collator/src/lib.rs
+11 -9
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@@ -83,12 +83,12 @@ pub trait Network: Send + Sync {
/// The returned stream will not terminate, so it is required to make sure that the stream is
/// dropped when it is not required anymore. Otherwise, it will stick around in memory
/// infinitely.
fn checked_statements(&self, relay_parent: Hash) -> Pin<Box<dyn Stream<Item=SignedStatement>>>;
fn checked_statements(&self, relay_parent: Hash) -> Pin<Box<dyn Stream<Item=SignedStatement> + Send>>;
}
impl Network for polkadot_network::protocol::Service {
fn checked_statements(&self, relay_parent: Hash) -> Pin<Box<dyn Stream<Item=SignedStatement>>> {
polkadot_network::protocol::Service::checked_statements(self, relay_parent)
fn checked_statements(&self, relay_parent: Hash) -> Pin<Box<dyn Stream<Item=SignedStatement> + Send>> {
polkadot_network::protocol::Service::checked_statements(self, relay_parent).boxed()
}
}
@@ -241,12 +241,14 @@ fn build_collator_service<S, P, Extrinsic>(
let (service, handles) = service;
let spawner = service.spawn_task_handle();
let polkadot_network = match handles.polkadot_network {
None => return Err(
"Collator cannot run when Polkadot-specific networking has not been started".into()
),
Some(n) => n,
};
let polkadot_network = handles.polkadot_network
.ok_or_else(|| "Collator cannot run when Polkadot-specific networking has not been started")?;
// We don't require this here, but we need to make sure that the validation service is started.
// This service makes sure the collator is joining the correct gossip topics and receives the appropiate
// messages.
handles.validation_service_handle
.ok_or_else(|| "Collator cannot run when validation networking has not been started")?;
let client = service.client();