// Copyright 2015 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 state import ( "bytes" "github.com/ethereum/go-ethereum/common" "github.com/ethereum/go-ethereum/ethdb" "github.com/ethereum/go-ethereum/rlp" "github.com/ethereum/go-ethereum/trie" ) // NewStateSync create a new state trie download scheduler. func NewStateSync(root common.Hash, database ethdb.KeyValueReader, bloom *trie.SyncBloom) *trie.Sync { var syncer *trie.Sync callback := func(path []byte, leaf []byte, parent common.Hash) error { var obj Account if err := rlp.Decode(bytes.NewReader(leaf), &obj); err != nil { return err } syncer.AddSubTrie(obj.Root, path, parent, nil) syncer.AddCodeEntry(common.BytesToHash(obj.CodeHash), path, parent) return nil } syncer = trie.NewSync(root, database, callback, bloom) return syncer }