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BABE slot and epoch event notifications (#6563)

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* BabeWorker -> BabeSlotWorker

* SlotWorker::notify_slot: similar to claim_slot, but called no matter authoring

* Wrap the future with a new struct BabeWorker

* Add type definition slot_notification_sinks

* Function slot_notification_streams for the receiver side

* Get a handle of slot_notification_sinks in BabeSlotWorker

* Implement notify_slot

* Switch to use bounded mpsc

* Do not drop the sink when channel is full

Only skip sending the message and emit a warning, because it is recoverable.

* Fix future type bounds

* Add must_use and sink type alias
This commit is contained in:
Wei Tang
2020-07-30 17:07:27 +02:00
committed by GitHub
parent 9ac30f7116
commit b6dedd9016
4 changed files with 92 additions and 10 deletions
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substrate/client/consensus/slots/src/lib.rs
+11
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@@ -104,6 +104,15 @@ pub trait SimpleSlotWorker<B: BlockT> {
epoch_data: &Self::EpochData,
) -> Option<Self::Claim>;
/// Notifies the given slot. Similar to `claim_slot`, but will be called no matter whether we
/// need to author blocks or not.
fn notify_slot(
&self,
_header: &B::Header,
_slot_number: u64,
_epoch_data: &Self::EpochData,
) { }
/// Return the pre digest data to include in a block authored with the given claim.
fn pre_digest_data(
&self,
@@ -191,6 +200,8 @@ pub trait SimpleSlotWorker<B: BlockT> {
}
};
self.notify_slot(&chain_head, slot_number, &epoch_data);
let authorities_len = self.authorities_len(&epoch_data);
if !self.force_authoring() &&