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Adds a comment as requested (#1922)

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* Adds a comment as requested

* Update node/core/bitfield-signing/src/lib.rs

Co-authored-by: Fedor Sakharov <fedor.sakharov@gmail.com>

Co-authored-by: Fedor Sakharov <fedor.sakharov@gmail.com>
This commit is contained in:
Bastian Köcher
2020-11-05 16:50:04 +01:00
committed by GitHub
parent 6d4d85edda
commit 2cdc1c0409
1 changed files with 4 additions and 0 deletions
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polkadot/node/core/bitfield-signing/src/lib.rs
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@@ -210,6 +210,10 @@ async fn construct_availability_bitfield(
let availability_cores = get_availability_cores(relay_parent, sender).await?; let availability_cores = get_availability_cores(relay_parent, sender).await?;
// Wrap the sender in a Mutex to share it between the futures. // Wrap the sender in a Mutex to share it between the futures.
//
// We use a `Mutex` here to not `clone` the sender inside the future, because
// cloning the sender will always increase the capacity of the channel by one.
// (for the lifetime of the sender)
let sender = Mutex::new(sender); let sender = Mutex::new(sender);
// Handle all cores concurrently // Handle all cores concurrently