mirror of
https://gitlab.com/pulsechaincom/erigon-pulse.git
synced 2024-12-22 03:30:37 +00:00
e14664d53b
- allow store non-canonical blocks/senders - optimize re-org: don't update/delete most of data - allow mark chain as `Bad` - will be not visible by eth_getBlockByHash, but can read if have hash+num
66 lines
2.2 KiB
Go
66 lines
2.2 KiB
Go
// Copyright 2018 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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"math/big"
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libcommon "github.com/ledgerwatch/erigon-lib/common"
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"github.com/ledgerwatch/erigon-lib/kv"
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"github.com/ledgerwatch/log/v3"
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"github.com/ledgerwatch/erigon/core/types"
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)
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// TxLookupEntry is a positional metadata to help looking up the data content of
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// a transaction or receipt given only its hash.
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type TxLookupEntry struct {
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BlockHash libcommon.Hash
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BlockIndex uint64
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Index uint64
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}
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// ReadTxLookupEntry retrieves the positional metadata associated with a transaction
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// hash to allow retrieving the transaction or receipt by hash.
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func ReadTxLookupEntry(db kv.Getter, txnHash libcommon.Hash) (*uint64, error) {
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data, err := db.GetOne(kv.TxLookup, txnHash.Bytes())
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if err != nil {
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return nil, err
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}
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if len(data) == 0 {
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return nil, nil
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}
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number := new(big.Int).SetBytes(data).Uint64()
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return &number, nil
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}
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// WriteTxLookupEntries stores a positional metadata for every transaction from
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// a block, enabling hash based transaction and receipt lookups.
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func WriteTxLookupEntries(db kv.Putter, block *types.Block) {
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for _, tx := range block.Transactions() {
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data := block.Number().Bytes()
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if err := db.Put(kv.TxLookup, tx.Hash().Bytes(), data); err != nil {
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log.Crit("Failed to store transaction lookup entry", "err", err)
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}
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}
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}
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// DeleteTxLookupEntry removes all transaction data associated with a hash.
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func DeleteTxLookupEntry(db kv.Deleter, hash libcommon.Hash) error {
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return db.Delete(kv.TxLookup, hash.Bytes())
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}
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