87 lines
3.0 KiB
Go
87 lines
3.0 KiB
Go
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// 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 "fmt"
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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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// 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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)
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// freezers the collections of all builtin freezers.
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var freezers = []string{chainFreezerName}
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// InspectFreezerTable dumps out the index of a specific freezer table. The passed
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// ancient indicates the path of root ancient directory where the chain freezer can
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// be opened. Start and end specify the range for dumping out indexes.
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// Note this function can only be used for debugging purposes.
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func InspectFreezerTable(ancient string, freezerName string, tableName string, start, end int64) error {
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var (
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path string
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tables map[string]bool
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)
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switch freezerName {
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case chainFreezerName:
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path, tables = resolveChainFreezerDir(ancient), chainFreezerNoSnappy
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default:
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return fmt.Errorf("unknown freezer, supported ones: %v", freezers)
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}
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noSnappy, exist := tables[tableName]
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if !exist {
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var names []string
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for name := range tables {
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names = append(names, name)
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}
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return fmt.Errorf("unknown table, supported ones: %v", names)
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}
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table, err := newFreezerTable(path, tableName, noSnappy, true)
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if err != nil {
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return err
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}
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table.dumpIndexStdout(start, end)
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return nil
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}
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