mirror of
https://gitlab.com/pulsechaincom/go-pulse.git
synced 2024-12-22 11:31:02 +00:00
7de748d3f6
* all: implement path-based state scheme * all: edits from review * core/rawdb, trie/triedb/pathdb: review changes * core, light, trie, eth, tests: reimplement pbss history * core, trie/triedb/pathdb: track block number in state history * trie/triedb/pathdb: add history documentation * core, trie/triedb/pathdb: address comments from Peter's review Important changes to list: - Cache trie nodes by path in clean cache - Remove root->id mappings when history is truncated * trie/triedb/pathdb: fallback to disk if unexpect node in clean cache * core/rawdb: fix tests * trie/triedb/pathdb: rename metrics, change clean cache key * trie/triedb: manage the clean cache inside of disk layer * trie/triedb/pathdb: move journal function * trie/triedb/path: fix tests * trie/triedb/pathdb: fix journal * trie/triedb/pathdb: fix history * trie/triedb/pathdb: try to fix tests on windows * core, trie: address comments * trie/triedb/pathdb: fix test issues --------- Co-authored-by: Felix Lange <fjl@twurst.com> Co-authored-by: Martin Holst Swende <martin@swende.se>
155 lines
3.9 KiB
Go
155 lines
3.9 KiB
Go
// Copyright 2022 The go-ethereum Authors
|
|
// This file is part of the go-ethereum library.
|
|
//
|
|
// The go-ethereum library is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU Lesser General Public License as published by
|
|
// the Free Software Foundation, either version 3 of the License, or
|
|
// (at your option) any later version.
|
|
//
|
|
// The go-ethereum library is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU Lesser General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU Lesser General Public License
|
|
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
// Package remotedb implements the key-value database layer based on a remote geth
|
|
// node. Under the hood, it utilises the `debug_dbGet` method to implement a
|
|
// read-only database.
|
|
// There really are no guarantees in this database, since the local geth does not
|
|
// exclusive access, but it can be used for basic diagnostics of a remote node.
|
|
package remotedb
|
|
|
|
import (
|
|
"github.com/ethereum/go-ethereum/common/hexutil"
|
|
"github.com/ethereum/go-ethereum/ethdb"
|
|
"github.com/ethereum/go-ethereum/rpc"
|
|
)
|
|
|
|
// Database is a key-value lookup for a remote database via debug_dbGet.
|
|
type Database struct {
|
|
remote *rpc.Client
|
|
}
|
|
|
|
func (db *Database) Has(key []byte) (bool, error) {
|
|
if _, err := db.Get(key); err != nil {
|
|
return false, nil
|
|
}
|
|
return true, nil
|
|
}
|
|
|
|
func (db *Database) Get(key []byte) ([]byte, error) {
|
|
var resp hexutil.Bytes
|
|
err := db.remote.Call(&resp, "debug_dbGet", hexutil.Bytes(key))
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return resp, nil
|
|
}
|
|
|
|
func (db *Database) HasAncient(kind string, number uint64) (bool, error) {
|
|
if _, err := db.Ancient(kind, number); err != nil {
|
|
return false, nil
|
|
}
|
|
return true, nil
|
|
}
|
|
|
|
func (db *Database) Ancient(kind string, number uint64) ([]byte, error) {
|
|
var resp hexutil.Bytes
|
|
err := db.remote.Call(&resp, "debug_dbAncient", kind, number)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return resp, nil
|
|
}
|
|
|
|
func (db *Database) AncientRange(kind string, start, count, maxBytes uint64) ([][]byte, error) {
|
|
panic("not supported")
|
|
}
|
|
|
|
func (db *Database) Ancients() (uint64, error) {
|
|
var resp uint64
|
|
err := db.remote.Call(&resp, "debug_dbAncients")
|
|
return resp, err
|
|
}
|
|
|
|
func (db *Database) Tail() (uint64, error) {
|
|
panic("not supported")
|
|
}
|
|
|
|
func (db *Database) AncientSize(kind string) (uint64, error) {
|
|
panic("not supported")
|
|
}
|
|
|
|
func (db *Database) ReadAncients(fn func(op ethdb.AncientReaderOp) error) (err error) {
|
|
return fn(db)
|
|
}
|
|
|
|
func (db *Database) Put(key []byte, value []byte) error {
|
|
panic("not supported")
|
|
}
|
|
|
|
func (db *Database) Delete(key []byte) error {
|
|
panic("not supported")
|
|
}
|
|
|
|
func (db *Database) ModifyAncients(f func(ethdb.AncientWriteOp) error) (int64, error) {
|
|
panic("not supported")
|
|
}
|
|
|
|
func (db *Database) TruncateHead(n uint64) (uint64, error) {
|
|
panic("not supported")
|
|
}
|
|
|
|
func (db *Database) TruncateTail(n uint64) (uint64, error) {
|
|
panic("not supported")
|
|
}
|
|
|
|
func (db *Database) Sync() error {
|
|
return nil
|
|
}
|
|
|
|
func (db *Database) MigrateTable(s string, f func([]byte) ([]byte, error)) error {
|
|
panic("not supported")
|
|
}
|
|
|
|
func (db *Database) NewBatch() ethdb.Batch {
|
|
panic("not supported")
|
|
}
|
|
|
|
func (db *Database) NewBatchWithSize(size int) ethdb.Batch {
|
|
panic("not supported")
|
|
}
|
|
|
|
func (db *Database) NewIterator(prefix []byte, start []byte) ethdb.Iterator {
|
|
panic("not supported")
|
|
}
|
|
|
|
func (db *Database) Stat(property string) (string, error) {
|
|
panic("not supported")
|
|
}
|
|
|
|
func (db *Database) AncientDatadir() (string, error) {
|
|
panic("not supported")
|
|
}
|
|
|
|
func (db *Database) Compact(start []byte, limit []byte) error {
|
|
return nil
|
|
}
|
|
|
|
func (db *Database) NewSnapshot() (ethdb.Snapshot, error) {
|
|
panic("not supported")
|
|
}
|
|
|
|
func (db *Database) Close() error {
|
|
db.remote.Close()
|
|
return nil
|
|
}
|
|
|
|
func New(client *rpc.Client) ethdb.Database {
|
|
return &Database{
|
|
remote: client,
|
|
}
|
|
}
|