Roy Crihfield
761d60acdf
The Geth `core/state` and `trie` packages underwent a big refactor between `v1.11.6` and `1.13.14`. This code, which was adapted from those, needed corresponding updates. To do this I applied the diff patches from Geth directly where possible and in some places had to clone new parts of the Geth code and adapt them. In order to make this process as straightforward as possible in the future, I've attempted to minimize the number of changes vs. Geth and added some documentation in the `trie_by_cid` package. Reviewed-on: #5
49 lines
1.8 KiB
Go
49 lines
1.8 KiB
Go
// Copyright 2024 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// The go-ethereum library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// The go-ethereum library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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package database
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import (
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"github.com/ethereum/go-ethereum/common"
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)
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// Reader wraps the Node method of a backing trie reader.
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type Reader interface {
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// Node retrieves the trie node blob with the provided trie identifier,
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// node path and the corresponding node hash. No error will be returned
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// if the node is not found.
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Node(owner common.Hash, path []byte, hash common.Hash) ([]byte, error)
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}
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// PreimageStore wraps the methods of a backing store for reading and writing
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// trie node preimages.
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type PreimageStore interface {
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// Preimage retrieves the preimage of the specified hash.
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Preimage(hash common.Hash) []byte
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// InsertPreimage commits a set of preimages along with their hashes.
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InsertPreimage(preimages map[common.Hash][]byte)
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}
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// Database wraps the methods of a backing trie store.
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type Database interface {
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PreimageStore
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// Reader returns a node reader associated with the specific state.
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// An error will be returned if the specified state is not available.
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Reader(stateRoot common.Hash) (Reader, error)
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}
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