mirror of
https://github.com/pezkuwichain/pezkuwi-subxt.git
synced 2026-06-20 16:21:02 +00:00
Vivek Pandya
bc53b9a03a
* Change copyright year to 2023 from 2022 * Fix incorrect update of copyright year * Remove years from copy right header * Fix remaining files * Fix typo in a header and remove update-copyright.sh
37 lines
1.3 KiB
Rust
37 lines
1.3 KiB
Rust
// This file is part of Substrate.
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// Copyright (C) Parity Technologies (UK) Ltd.
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// SPDX-License-Identifier: Apache-2.0
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//! Shared logic between on-chain and off-chain components used for slashing using an off-chain
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//! worker.
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use codec::Encode;
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use sp_staking::SessionIndex;
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use sp_std::prelude::*;
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pub(super) const PREFIX: &[u8] = b"session_historical";
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pub(super) const LAST_PRUNE: &[u8] = b"session_historical_last_prune";
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/// Derive the key used to store the list of validators
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pub(super) fn derive_key<P: AsRef<[u8]>>(prefix: P, session_index: SessionIndex) -> Vec<u8> {
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session_index.using_encoded(|encoded_session_index| {
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let mut key = prefix.as_ref().to_owned();
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key.push(b'/');
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key.extend_from_slice(encoded_session_index);
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key
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})
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}
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