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Nazar Mokrynskyi
a685582bfd
* Extract `NetworkKVProvider` trait in `sc-authority-discovery` and remove unnecessary dependency * Extract `NetworkSyncForkRequest` trait in `sc-finality-grandpa` * Relax requirements on `SyncOracle` trait, remove extra native methods from `NetworkService` that are already provided by trait impls * Move `NetworkSigner` trait from `sc-authority-discovery` into `sc-network-common` and de-duplicate methods on `NetworkService` * Move `NetworkKVProvider` trait from `sc-authority-discovery` into `sc-network-common` and de-duplicate methods on `NetworkService` * Minimize `sc-authority-discovery` dependency on `sc-network` * Move `NetworkSyncForkRequest` trait from `sc-finality-grandpa` to `sc-network-common` and de-duplicate methods in `NetworkService` * Extract `NetworkStatusProvider` trait and de-duplicate methods on `NetworkService` * Extract `NetworkPeers` trait and de-duplicate methods on `NetworkService` * Extract `NetworkEventStream` trait and de-duplicate methods on `NetworkService` * Move more methods from `NetworkService` into `NetworkPeers` trait * Move `NetworkStateInfo` trait into `sc-network-common` * Extract `NetworkNotification` trait and de-duplicate methods on `NetworkService` * Extract `NetworkRequest` trait and de-duplicate methods on `NetworkService` * Remove `NetworkService::local_peer_id()`, it is already provided by `NetworkStateInfo` impl * Extract `NetworkTransaction` trait and de-duplicate methods on `NetworkService` * Extract `NetworkBlock` trait and de-duplicate methods on `NetworkService` * Remove dependencies on `NetworkService` from most of the methods of `sc-service` * Address simple review comments
Substrate offchain workers.
The offchain workers is a special function of the runtime that gets executed after block is imported. During execution it's able to asynchronously submit extrinsics that will either be propagated to other nodes or added to the next block produced by the node as unsigned transactions.
Offchain workers can be used for computation-heavy tasks that are not feasible for execution during regular block processing. It can either be tasks that no consensus is required for, or some form of consensus over the data can be built on-chain for instance via:
- Challenge period for incorrect computations
- Majority voting for results
- etc
License: GPL-3.0-or-later WITH Classpath-exception-2.0