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ba215fd927
This Pr implements some prerequisite changes for #34004 : split the `CachingDB` into a `MerkleDB` and a `UBTDB`, so that very different behaviors don't clash as much. The transition isn't handled by this PR, but after talking to Gary we agreed that `UBTDB` should receive another `triedb`, which will only be loaded if the `Ended` flag is set to false in the conversion contract. If this is too hard to achieve, it makes sense to load it regardless, and then loading can be prevented at a later stage by adding a `UBTTransitionFinalizationTime` in `ChainConfig`. --------- Co-authored-by: Gary Rong <garyrong0905@gmail.com>
47 lines
1.8 KiB
Go
47 lines
1.8 KiB
Go
// Copyright 2023 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 blobpool
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import (
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/core/state"
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"github.com/ethereum/go-ethereum/core/types"
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"github.com/ethereum/go-ethereum/params"
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)
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// BlockChain defines the minimal set of methods needed to back a blob pool with
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// a chain. Exists to allow mocking the live chain out of tests.
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type BlockChain interface {
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// Config retrieves the chain's fork configuration.
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Config() *params.ChainConfig
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// CurrentBlock returns the current head of the chain.
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CurrentBlock() *types.Header
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// Genesis returns the genesis block of the chain.
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Genesis() *types.Block
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// CurrentFinalBlock returns the current block below which blobs should not
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// be maintained anymore for reorg purposes.
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CurrentFinalBlock() *types.Header
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// GetBlock retrieves a specific block, used during pool resets.
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GetBlock(hash common.Hash, number uint64) *types.Block
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// StateAt returns a state database for a given chain header (generally the head).
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StateAt(header *types.Header) (*state.StateDB, error)
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}
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