mirror of
https://gitlab.com/pulsechaincom/go-pulse.git
synced 2024-12-23 03:51:09 +00:00
bff84a99fe
* cmd, core, eth, les, light: track deleted nodes * trie: add docs * trie: address comments * cmd, core, eth, les, light, trie: trie id * trie: add tests * trie, core: updates * trie: fix imports * trie: add utility print-method for nodeset * trie: import err * trie: fix go vet warnings Co-authored-by: Martin Holst Swende <martin@swende.se>
593 lines
18 KiB
Go
593 lines
18 KiB
Go
// Copyright 2015 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 eth
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import (
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"compress/gzip"
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"context"
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"errors"
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"fmt"
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"io"
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"math/big"
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"os"
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"runtime"
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"strings"
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"time"
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/common/hexutil"
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"github.com/ethereum/go-ethereum/core"
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"github.com/ethereum/go-ethereum/core/rawdb"
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"github.com/ethereum/go-ethereum/core/state"
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"github.com/ethereum/go-ethereum/core/types"
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"github.com/ethereum/go-ethereum/internal/ethapi"
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"github.com/ethereum/go-ethereum/log"
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"github.com/ethereum/go-ethereum/rlp"
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"github.com/ethereum/go-ethereum/rpc"
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"github.com/ethereum/go-ethereum/trie"
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)
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// EthereumAPI provides an API to access Ethereum full node-related information.
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type EthereumAPI struct {
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e *Ethereum
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}
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// NewEthereumAPI creates a new Ethereum protocol API for full nodes.
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func NewEthereumAPI(e *Ethereum) *EthereumAPI {
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return &EthereumAPI{e}
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}
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// Etherbase is the address that mining rewards will be send to.
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func (api *EthereumAPI) Etherbase() (common.Address, error) {
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return api.e.Etherbase()
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}
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// Coinbase is the address that mining rewards will be send to (alias for Etherbase).
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func (api *EthereumAPI) Coinbase() (common.Address, error) {
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return api.Etherbase()
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}
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// Hashrate returns the POW hashrate.
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func (api *EthereumAPI) Hashrate() hexutil.Uint64 {
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return hexutil.Uint64(api.e.Miner().Hashrate())
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}
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// Mining returns an indication if this node is currently mining.
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func (api *EthereumAPI) Mining() bool {
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return api.e.IsMining()
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}
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// MinerAPI provides an API to control the miner.
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type MinerAPI struct {
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e *Ethereum
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}
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// NewMinerAPI create a new MinerAPI instance.
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func NewMinerAPI(e *Ethereum) *MinerAPI {
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return &MinerAPI{e}
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}
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// Start starts the miner with the given number of threads. If threads is nil,
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// the number of workers started is equal to the number of logical CPUs that are
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// usable by this process. If mining is already running, this method adjust the
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// number of threads allowed to use and updates the minimum price required by the
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// transaction pool.
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func (api *MinerAPI) Start(threads *int) error {
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if threads == nil {
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return api.e.StartMining(runtime.NumCPU())
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}
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return api.e.StartMining(*threads)
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}
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// Stop terminates the miner, both at the consensus engine level as well as at
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// the block creation level.
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func (api *MinerAPI) Stop() {
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api.e.StopMining()
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}
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// SetExtra sets the extra data string that is included when this miner mines a block.
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func (api *MinerAPI) SetExtra(extra string) (bool, error) {
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if err := api.e.Miner().SetExtra([]byte(extra)); err != nil {
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return false, err
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}
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return true, nil
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}
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// SetGasPrice sets the minimum accepted gas price for the miner.
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func (api *MinerAPI) SetGasPrice(gasPrice hexutil.Big) bool {
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api.e.lock.Lock()
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api.e.gasPrice = (*big.Int)(&gasPrice)
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api.e.lock.Unlock()
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api.e.txPool.SetGasPrice((*big.Int)(&gasPrice))
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return true
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}
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// SetGasLimit sets the gaslimit to target towards during mining.
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func (api *MinerAPI) SetGasLimit(gasLimit hexutil.Uint64) bool {
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api.e.Miner().SetGasCeil(uint64(gasLimit))
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return true
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}
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// SetEtherbase sets the etherbase of the miner.
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func (api *MinerAPI) SetEtherbase(etherbase common.Address) bool {
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api.e.SetEtherbase(etherbase)
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return true
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}
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// SetRecommitInterval updates the interval for miner sealing work recommitting.
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func (api *MinerAPI) SetRecommitInterval(interval int) {
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api.e.Miner().SetRecommitInterval(time.Duration(interval) * time.Millisecond)
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}
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// AdminAPI is the collection of Ethereum full node related APIs for node
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// administration.
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type AdminAPI struct {
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eth *Ethereum
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}
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// NewAdminAPI creates a new instance of AdminAPI.
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func NewAdminAPI(eth *Ethereum) *AdminAPI {
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return &AdminAPI{eth: eth}
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}
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// ExportChain exports the current blockchain into a local file,
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// or a range of blocks if first and last are non-nil.
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func (api *AdminAPI) ExportChain(file string, first *uint64, last *uint64) (bool, error) {
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if first == nil && last != nil {
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return false, errors.New("last cannot be specified without first")
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}
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if first != nil && last == nil {
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head := api.eth.BlockChain().CurrentHeader().Number.Uint64()
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last = &head
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}
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if _, err := os.Stat(file); err == nil {
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// File already exists. Allowing overwrite could be a DoS vector,
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// since the 'file' may point to arbitrary paths on the drive.
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return false, errors.New("location would overwrite an existing file")
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}
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// Make sure we can create the file to export into
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out, err := os.OpenFile(file, os.O_CREATE|os.O_WRONLY|os.O_TRUNC, os.ModePerm)
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if err != nil {
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return false, err
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}
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defer out.Close()
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var writer io.Writer = out
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if strings.HasSuffix(file, ".gz") {
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writer = gzip.NewWriter(writer)
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defer writer.(*gzip.Writer).Close()
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}
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// Export the blockchain
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if first != nil {
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if err := api.eth.BlockChain().ExportN(writer, *first, *last); err != nil {
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return false, err
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}
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} else if err := api.eth.BlockChain().Export(writer); err != nil {
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return false, err
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}
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return true, nil
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}
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func hasAllBlocks(chain *core.BlockChain, bs []*types.Block) bool {
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for _, b := range bs {
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if !chain.HasBlock(b.Hash(), b.NumberU64()) {
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return false
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}
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}
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return true
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}
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// ImportChain imports a blockchain from a local file.
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func (api *AdminAPI) ImportChain(file string) (bool, error) {
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// Make sure the can access the file to import
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in, err := os.Open(file)
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if err != nil {
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return false, err
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}
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defer in.Close()
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var reader io.Reader = in
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if strings.HasSuffix(file, ".gz") {
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if reader, err = gzip.NewReader(reader); err != nil {
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return false, err
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}
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}
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// Run actual the import in pre-configured batches
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stream := rlp.NewStream(reader, 0)
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blocks, index := make([]*types.Block, 0, 2500), 0
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for batch := 0; ; batch++ {
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// Load a batch of blocks from the input file
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for len(blocks) < cap(blocks) {
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block := new(types.Block)
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if err := stream.Decode(block); err == io.EOF {
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break
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} else if err != nil {
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return false, fmt.Errorf("block %d: failed to parse: %v", index, err)
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}
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blocks = append(blocks, block)
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index++
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}
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if len(blocks) == 0 {
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break
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}
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if hasAllBlocks(api.eth.BlockChain(), blocks) {
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blocks = blocks[:0]
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continue
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}
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// Import the batch and reset the buffer
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if _, err := api.eth.BlockChain().InsertChain(blocks); err != nil {
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return false, fmt.Errorf("batch %d: failed to insert: %v", batch, err)
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}
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blocks = blocks[:0]
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}
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return true, nil
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}
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// DebugAPI is the collection of Ethereum full node APIs for debugging the
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// protocol.
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type DebugAPI struct {
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eth *Ethereum
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}
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// NewDebugAPI creates a new DebugAPI instance.
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func NewDebugAPI(eth *Ethereum) *DebugAPI {
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return &DebugAPI{eth: eth}
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}
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// DumpBlock retrieves the entire state of the database at a given block.
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func (api *DebugAPI) DumpBlock(blockNr rpc.BlockNumber) (state.Dump, error) {
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opts := &state.DumpConfig{
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OnlyWithAddresses: true,
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Max: AccountRangeMaxResults, // Sanity limit over RPC
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}
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if blockNr == rpc.PendingBlockNumber {
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// If we're dumping the pending state, we need to request
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// both the pending block as well as the pending state from
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// the miner and operate on those
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_, stateDb := api.eth.miner.Pending()
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return stateDb.RawDump(opts), nil
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}
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var block *types.Block
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if blockNr == rpc.LatestBlockNumber {
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block = api.eth.blockchain.CurrentBlock()
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} else if blockNr == rpc.FinalizedBlockNumber {
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block = api.eth.blockchain.CurrentFinalizedBlock()
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} else if blockNr == rpc.SafeBlockNumber {
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block = api.eth.blockchain.CurrentSafeBlock()
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} else {
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block = api.eth.blockchain.GetBlockByNumber(uint64(blockNr))
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}
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if block == nil {
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return state.Dump{}, fmt.Errorf("block #%d not found", blockNr)
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}
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stateDb, err := api.eth.BlockChain().StateAt(block.Root())
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if err != nil {
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return state.Dump{}, err
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}
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return stateDb.RawDump(opts), nil
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}
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// Preimage is a debug API function that returns the preimage for a sha3 hash, if known.
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func (api *DebugAPI) Preimage(ctx context.Context, hash common.Hash) (hexutil.Bytes, error) {
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if preimage := rawdb.ReadPreimage(api.eth.ChainDb(), hash); preimage != nil {
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return preimage, nil
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}
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return nil, errors.New("unknown preimage")
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}
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// BadBlockArgs represents the entries in the list returned when bad blocks are queried.
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type BadBlockArgs struct {
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Hash common.Hash `json:"hash"`
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Block map[string]interface{} `json:"block"`
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RLP string `json:"rlp"`
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}
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// GetBadBlocks returns a list of the last 'bad blocks' that the client has seen on the network
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// and returns them as a JSON list of block hashes.
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func (api *DebugAPI) GetBadBlocks(ctx context.Context) ([]*BadBlockArgs, error) {
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var (
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err error
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blocks = rawdb.ReadAllBadBlocks(api.eth.chainDb)
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results = make([]*BadBlockArgs, 0, len(blocks))
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)
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for _, block := range blocks {
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var (
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blockRlp string
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blockJSON map[string]interface{}
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)
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if rlpBytes, err := rlp.EncodeToBytes(block); err != nil {
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blockRlp = err.Error() // Hacky, but hey, it works
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} else {
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blockRlp = fmt.Sprintf("%#x", rlpBytes)
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}
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if blockJSON, err = ethapi.RPCMarshalBlock(block, true, true, api.eth.APIBackend.ChainConfig()); err != nil {
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blockJSON = map[string]interface{}{"error": err.Error()}
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}
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results = append(results, &BadBlockArgs{
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Hash: block.Hash(),
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RLP: blockRlp,
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Block: blockJSON,
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})
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}
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return results, nil
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}
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// AccountRangeMaxResults is the maximum number of results to be returned per call
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const AccountRangeMaxResults = 256
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// AccountRange enumerates all accounts in the given block and start point in paging request
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func (api *DebugAPI) AccountRange(blockNrOrHash rpc.BlockNumberOrHash, start hexutil.Bytes, maxResults int, nocode, nostorage, incompletes bool) (state.IteratorDump, error) {
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var stateDb *state.StateDB
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var err error
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if number, ok := blockNrOrHash.Number(); ok {
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if number == rpc.PendingBlockNumber {
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// If we're dumping the pending state, we need to request
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// both the pending block as well as the pending state from
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// the miner and operate on those
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_, stateDb = api.eth.miner.Pending()
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} else {
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var block *types.Block
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if number == rpc.LatestBlockNumber {
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block = api.eth.blockchain.CurrentBlock()
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} else if number == rpc.FinalizedBlockNumber {
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block = api.eth.blockchain.CurrentFinalizedBlock()
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} else if number == rpc.SafeBlockNumber {
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block = api.eth.blockchain.CurrentSafeBlock()
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} else {
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block = api.eth.blockchain.GetBlockByNumber(uint64(number))
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}
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if block == nil {
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return state.IteratorDump{}, fmt.Errorf("block #%d not found", number)
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}
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stateDb, err = api.eth.BlockChain().StateAt(block.Root())
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if err != nil {
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return state.IteratorDump{}, err
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}
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}
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} else if hash, ok := blockNrOrHash.Hash(); ok {
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block := api.eth.blockchain.GetBlockByHash(hash)
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if block == nil {
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return state.IteratorDump{}, fmt.Errorf("block %s not found", hash.Hex())
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}
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stateDb, err = api.eth.BlockChain().StateAt(block.Root())
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if err != nil {
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return state.IteratorDump{}, err
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}
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} else {
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return state.IteratorDump{}, errors.New("either block number or block hash must be specified")
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}
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opts := &state.DumpConfig{
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SkipCode: nocode,
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SkipStorage: nostorage,
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OnlyWithAddresses: !incompletes,
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Start: start,
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Max: uint64(maxResults),
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}
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if maxResults > AccountRangeMaxResults || maxResults <= 0 {
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opts.Max = AccountRangeMaxResults
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}
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return stateDb.IteratorDump(opts), nil
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}
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// StorageRangeResult is the result of a debug_storageRangeAt API call.
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type StorageRangeResult struct {
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Storage storageMap `json:"storage"`
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NextKey *common.Hash `json:"nextKey"` // nil if Storage includes the last key in the trie.
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}
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type storageMap map[common.Hash]storageEntry
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type storageEntry struct {
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Key *common.Hash `json:"key"`
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Value common.Hash `json:"value"`
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}
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// StorageRangeAt returns the storage at the given block height and transaction index.
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func (api *DebugAPI) StorageRangeAt(blockHash common.Hash, txIndex int, contractAddress common.Address, keyStart hexutil.Bytes, maxResult int) (StorageRangeResult, error) {
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// Retrieve the block
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block := api.eth.blockchain.GetBlockByHash(blockHash)
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if block == nil {
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return StorageRangeResult{}, fmt.Errorf("block %#x not found", blockHash)
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}
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_, _, statedb, release, err := api.eth.stateAtTransaction(block, txIndex, 0)
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if err != nil {
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return StorageRangeResult{}, err
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}
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defer release()
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st := statedb.StorageTrie(contractAddress)
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if st == nil {
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return StorageRangeResult{}, fmt.Errorf("account %x doesn't exist", contractAddress)
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}
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return storageRangeAt(st, keyStart, maxResult)
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}
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func storageRangeAt(st state.Trie, start []byte, maxResult int) (StorageRangeResult, error) {
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it := trie.NewIterator(st.NodeIterator(start))
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result := StorageRangeResult{Storage: storageMap{}}
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for i := 0; i < maxResult && it.Next(); i++ {
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_, content, _, err := rlp.Split(it.Value)
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if err != nil {
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return StorageRangeResult{}, err
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}
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e := storageEntry{Value: common.BytesToHash(content)}
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if preimage := st.GetKey(it.Key); preimage != nil {
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preimage := common.BytesToHash(preimage)
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e.Key = &preimage
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}
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result.Storage[common.BytesToHash(it.Key)] = e
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}
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// Add the 'next key' so clients can continue downloading.
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if it.Next() {
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next := common.BytesToHash(it.Key)
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result.NextKey = &next
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}
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return result, nil
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}
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// GetModifiedAccountsByNumber returns all accounts that have changed between the
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// two blocks specified. A change is defined as a difference in nonce, balance,
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// code hash, or storage hash.
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//
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// With one parameter, returns the list of accounts modified in the specified block.
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func (api *DebugAPI) GetModifiedAccountsByNumber(startNum uint64, endNum *uint64) ([]common.Address, error) {
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var startBlock, endBlock *types.Block
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startBlock = api.eth.blockchain.GetBlockByNumber(startNum)
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if startBlock == nil {
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return nil, fmt.Errorf("start block %x not found", startNum)
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}
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if endNum == nil {
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endBlock = startBlock
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startBlock = api.eth.blockchain.GetBlockByHash(startBlock.ParentHash())
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if startBlock == nil {
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return nil, fmt.Errorf("block %x has no parent", endBlock.Number())
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}
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} else {
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endBlock = api.eth.blockchain.GetBlockByNumber(*endNum)
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if endBlock == nil {
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return nil, fmt.Errorf("end block %d not found", *endNum)
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}
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}
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return api.getModifiedAccounts(startBlock, endBlock)
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}
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// GetModifiedAccountsByHash returns all accounts that have changed between the
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// two blocks specified. A change is defined as a difference in nonce, balance,
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// code hash, or storage hash.
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//
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// With one parameter, returns the list of accounts modified in the specified block.
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func (api *DebugAPI) GetModifiedAccountsByHash(startHash common.Hash, endHash *common.Hash) ([]common.Address, error) {
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var startBlock, endBlock *types.Block
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startBlock = api.eth.blockchain.GetBlockByHash(startHash)
|
|
if startBlock == nil {
|
|
return nil, fmt.Errorf("start block %x not found", startHash)
|
|
}
|
|
|
|
if endHash == nil {
|
|
endBlock = startBlock
|
|
startBlock = api.eth.blockchain.GetBlockByHash(startBlock.ParentHash())
|
|
if startBlock == nil {
|
|
return nil, fmt.Errorf("block %x has no parent", endBlock.Number())
|
|
}
|
|
} else {
|
|
endBlock = api.eth.blockchain.GetBlockByHash(*endHash)
|
|
if endBlock == nil {
|
|
return nil, fmt.Errorf("end block %x not found", *endHash)
|
|
}
|
|
}
|
|
return api.getModifiedAccounts(startBlock, endBlock)
|
|
}
|
|
|
|
func (api *DebugAPI) getModifiedAccounts(startBlock, endBlock *types.Block) ([]common.Address, error) {
|
|
if startBlock.Number().Uint64() >= endBlock.Number().Uint64() {
|
|
return nil, fmt.Errorf("start block height (%d) must be less than end block height (%d)", startBlock.Number().Uint64(), endBlock.Number().Uint64())
|
|
}
|
|
triedb := api.eth.BlockChain().StateCache().TrieDB()
|
|
|
|
oldTrie, err := trie.NewStateTrie(trie.StateTrieID(startBlock.Root()), triedb)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
newTrie, err := trie.NewStateTrie(trie.StateTrieID(endBlock.Root()), triedb)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
diff, _ := trie.NewDifferenceIterator(oldTrie.NodeIterator([]byte{}), newTrie.NodeIterator([]byte{}))
|
|
iter := trie.NewIterator(diff)
|
|
|
|
var dirty []common.Address
|
|
for iter.Next() {
|
|
key := newTrie.GetKey(iter.Key)
|
|
if key == nil {
|
|
return nil, fmt.Errorf("no preimage found for hash %x", iter.Key)
|
|
}
|
|
dirty = append(dirty, common.BytesToAddress(key))
|
|
}
|
|
return dirty, nil
|
|
}
|
|
|
|
// GetAccessibleState returns the first number where the node has accessible
|
|
// state on disk. Note this being the post-state of that block and the pre-state
|
|
// of the next block.
|
|
// The (from, to) parameters are the sequence of blocks to search, which can go
|
|
// either forwards or backwards
|
|
func (api *DebugAPI) GetAccessibleState(from, to rpc.BlockNumber) (uint64, error) {
|
|
db := api.eth.ChainDb()
|
|
var pivot uint64
|
|
if p := rawdb.ReadLastPivotNumber(db); p != nil {
|
|
pivot = *p
|
|
log.Info("Found fast-sync pivot marker", "number", pivot)
|
|
}
|
|
var resolveNum = func(num rpc.BlockNumber) (uint64, error) {
|
|
// We don't have state for pending (-2), so treat it as latest
|
|
if num.Int64() < 0 {
|
|
block := api.eth.blockchain.CurrentBlock()
|
|
if block == nil {
|
|
return 0, fmt.Errorf("current block missing")
|
|
}
|
|
return block.NumberU64(), nil
|
|
}
|
|
return uint64(num.Int64()), nil
|
|
}
|
|
var (
|
|
start uint64
|
|
end uint64
|
|
delta = int64(1)
|
|
lastLog time.Time
|
|
err error
|
|
)
|
|
if start, err = resolveNum(from); err != nil {
|
|
return 0, err
|
|
}
|
|
if end, err = resolveNum(to); err != nil {
|
|
return 0, err
|
|
}
|
|
if start == end {
|
|
return 0, fmt.Errorf("from and to needs to be different")
|
|
}
|
|
if start > end {
|
|
delta = -1
|
|
}
|
|
for i := int64(start); i != int64(end); i += delta {
|
|
if time.Since(lastLog) > 8*time.Second {
|
|
log.Info("Finding roots", "from", start, "to", end, "at", i)
|
|
lastLog = time.Now()
|
|
}
|
|
if i < int64(pivot) {
|
|
continue
|
|
}
|
|
h := api.eth.BlockChain().GetHeaderByNumber(uint64(i))
|
|
if h == nil {
|
|
return 0, fmt.Errorf("missing header %d", i)
|
|
}
|
|
if ok, _ := api.eth.ChainDb().Has(h.Root[:]); ok {
|
|
return uint64(i), nil
|
|
}
|
|
}
|
|
return 0, errors.New("no state found")
|
|
}
|