With this commit, core/state's access to the underlying key/value database is mediated through an interface. Database errors are tracked in StateDB and returned by CommitTo or the new Error method. Motivation for this change: We can remove the light client's duplicated copy of core/state. The light client now supports node iteration, so tracing and storage enumeration can work with the light client (not implemented in this commit).
		
			
				
	
	
		
			82 lines
		
	
	
		
			2.4 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
			
		
		
	
	
			82 lines
		
	
	
		
			2.4 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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| 
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| package state
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| 
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| import (
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| 	"encoding/json"
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| 	"fmt"
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| 
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| 	"github.com/ethereum/go-ethereum/common"
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| 	"github.com/ethereum/go-ethereum/rlp"
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| 	"github.com/ethereum/go-ethereum/trie"
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| )
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| 
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| type DumpAccount struct {
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| 	Balance  string            `json:"balance"`
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| 	Nonce    uint64            `json:"nonce"`
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| 	Root     string            `json:"root"`
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| 	CodeHash string            `json:"codeHash"`
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| 	Code     string            `json:"code"`
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| 	Storage  map[string]string `json:"storage"`
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| }
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| 
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| type Dump struct {
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| 	Root     string                 `json:"root"`
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| 	Accounts map[string]DumpAccount `json:"accounts"`
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| }
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| 
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| func (self *StateDB) RawDump() Dump {
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| 	dump := Dump{
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| 		Root:     fmt.Sprintf("%x", self.trie.Hash()),
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| 		Accounts: make(map[string]DumpAccount),
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| 	}
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| 
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| 	it := trie.NewIterator(self.trie.NodeIterator(nil))
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| 	for it.Next() {
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| 		addr := self.trie.GetKey(it.Key)
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| 		var data Account
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| 		if err := rlp.DecodeBytes(it.Value, &data); err != nil {
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| 			panic(err)
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| 		}
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| 
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| 		obj := newObject(nil, common.BytesToAddress(addr), data, nil)
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| 		account := DumpAccount{
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| 			Balance:  data.Balance.String(),
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| 			Nonce:    data.Nonce,
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| 			Root:     common.Bytes2Hex(data.Root[:]),
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| 			CodeHash: common.Bytes2Hex(data.CodeHash),
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| 			Code:     common.Bytes2Hex(obj.Code(self.db)),
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| 			Storage:  make(map[string]string),
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| 		}
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| 		storageIt := trie.NewIterator(obj.getTrie(self.db).NodeIterator(nil))
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| 		for storageIt.Next() {
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| 			account.Storage[common.Bytes2Hex(self.trie.GetKey(storageIt.Key))] = common.Bytes2Hex(storageIt.Value)
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| 		}
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| 		dump.Accounts[common.Bytes2Hex(addr)] = account
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| 	}
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| 	return dump
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| }
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| 
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| func (self *StateDB) Dump() []byte {
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| 	json, err := json.MarshalIndent(self.RawDump(), "", "    ")
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| 	if err != nil {
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| 		fmt.Println("dump err", err)
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| 	}
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| 
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| 	return json
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| }
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