94 lines
3.4 KiB
Go
94 lines
3.4 KiB
Go
// Copyright 2022 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 rawdb
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import (
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"path/filepath"
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"github.com/ethereum/go-ethereum/ethdb"
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)
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// The list of table names of chain freezer.
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const (
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// ChainFreezerHeaderTable indicates the name of the freezer header table.
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ChainFreezerHeaderTable = "headers"
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// ChainFreezerHashTable indicates the name of the freezer canonical hash table.
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ChainFreezerHashTable = "hashes"
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// ChainFreezerBodiesTable indicates the name of the freezer block body table.
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ChainFreezerBodiesTable = "bodies"
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// ChainFreezerReceiptTable indicates the name of the freezer receipts table.
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ChainFreezerReceiptTable = "receipts"
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// ChainFreezerDifficultyTable indicates the name of the freezer total difficulty table.
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ChainFreezerDifficultyTable = "diffs"
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)
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// chainFreezerNoSnappy configures whether compression is disabled for the ancient-tables.
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// Hashes and difficulties don't compress well.
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var chainFreezerNoSnappy = map[string]bool{
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ChainFreezerHeaderTable: false,
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ChainFreezerHashTable: true,
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ChainFreezerBodiesTable: false,
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ChainFreezerReceiptTable: false,
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ChainFreezerDifficultyTable: true,
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}
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const (
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// stateHistoryTableSize defines the maximum size of freezer data files.
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stateHistoryTableSize = 2 * 1000 * 1000 * 1000
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// stateHistoryAccountIndex indicates the name of the freezer state history table.
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stateHistoryMeta = "history.meta"
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stateHistoryAccountIndex = "account.index"
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stateHistoryStorageIndex = "storage.index"
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stateHistoryAccountData = "account.data"
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stateHistoryStorageData = "storage.data"
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)
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var stateFreezerNoSnappy = map[string]bool{
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stateHistoryMeta: true,
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stateHistoryAccountIndex: false,
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stateHistoryStorageIndex: false,
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stateHistoryAccountData: false,
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stateHistoryStorageData: false,
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}
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// The list of identifiers of ancient stores.
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var (
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ChainFreezerName = "chain" // the folder name of chain segment ancient store.
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StateFreezerName = "state" // the folder name of reverse diff ancient store.
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)
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// freezers the collections of all builtin freezers.
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var freezers = []string{ChainFreezerName, StateFreezerName}
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// NewStateFreezer initializes the ancient store for state history.
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//
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// - if the empty directory is given, initializes the pure in-memory
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// state freezer (e.g. dev mode).
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// - if non-empty directory is given, initializes the regular file-based
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// state freezer.
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func NewStateFreezer(ancientDir string, readOnly bool) (ethdb.ResettableAncientStore, error) {
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if ancientDir == "" {
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return NewMemoryFreezer(readOnly, stateFreezerNoSnappy), nil
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}
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return newResettableFreezer(filepath.Join(ancientDir, StateFreezerName), "eth/db/state", readOnly, stateHistoryTableSize, stateFreezerNoSnappy)
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}
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