mirror of
https://gitlab.com/pulsechaincom/erigon-pulse.git
synced 2024-12-31 16:21:21 +00:00
c5ffc971c5
* badger v2 investigation * buf pool - use native New method and avoid double checks * db.Open prototype * db.Tx/Bucket/Cursor prototypes * Chained config * Item concept added * save changes to test on master * make hack resumable * Design document v0 * Cursor concept * less brackets syntax of cursor builder * benchmarks * cleanup fs * test for context cancelations * test for context cancelations * test for cursor.Prefix option * add ForEachKey method * add ForEachKey method * add naming explanation * experiment of non-pointers cursor/bucket * .Bucket() and .Cursor() doesn't returns error * .Bucket() and .Cursor() doesn't returns error * .Bucket() and .Cursor() doesn't returns error * remove CursorOpts concept * more test-cases * simplify open api * Tx, Bucket, Cursor - now are interfaces * Tx, Bucket, Cursor - now are interfaces * switch to interfaces * rebase master Co-authored-by: alex.sharov <alex.sharov@lazada.com>
101 lines
2.6 KiB
Go
101 lines
2.6 KiB
Go
// Copyright 2014 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 ethdb
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import (
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"github.com/ledgerwatch/bolt"
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"github.com/ledgerwatch/turbo-geth/common/dbutils"
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"github.com/ledgerwatch/turbo-geth/log"
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)
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func NewMemDatabase() *BoltDatabase {
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logger := log.New("database", "in-memory")
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// Open the db and recover any potential corruptions
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db, errOpen := bolt.Open("in-memory", 0600, &bolt.Options{MemOnly: true})
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if errOpen != nil {
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panic(errOpen)
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}
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if err := db.Update(func(tx *bolt.Tx) error {
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for _, bucket := range dbutils.Buckets {
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if _, err := tx.CreateBucketIfNotExists(bucket, false); err != nil {
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return err
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}
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}
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return nil
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}); err != nil {
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panic(err)
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}
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b := &BoltDatabase{
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db: db,
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log: logger,
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id: id(),
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}
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return b
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}
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func NewMemDatabase2() (*BoltDatabase, *bolt.DB) {
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logger := log.New("database", "in-memory")
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// Open the db and recover any potential corruptions
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db, err := bolt.Open("in-memory", 0600, &bolt.Options{MemOnly: true})
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if err != nil {
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panic(err)
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}
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return &BoltDatabase{
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db: db,
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log: logger,
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id: id(),
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}, db
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}
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func (db *BoltDatabase) MemCopy() Database {
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logger := log.New("database", "in-memory")
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// Open the db and recover any potential corruptions
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mem, err := bolt.Open("in-memory", 0600, &bolt.Options{MemOnly: true})
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if err != nil {
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panic(err)
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}
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if err := db.db.View(func(readTx *bolt.Tx) error {
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return readTx.ForEach(func(name []byte, b *bolt.Bucket) error {
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return mem.Update(func(writeTx *bolt.Tx) error {
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newBucketToWrite, err := writeTx.CreateBucket(name, true)
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if err != nil {
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return err
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}
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return b.ForEach(func(k, v []byte) error {
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if err := newBucketToWrite.Put(k, v); err != nil {
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return err
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}
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return nil
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})
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})
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})
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}); err != nil {
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panic(err)
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}
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return &BoltDatabase{
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db: mem,
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log: logger,
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id: id(),
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}
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}
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