mirror of https://github.com/status-im/op-geth.git
682 lines
20 KiB
Go
682 lines
20 KiB
Go
package eth
|
|
|
|
import (
|
|
"crypto/ecdsa"
|
|
"encoding/json"
|
|
"fmt"
|
|
"io/ioutil"
|
|
"math/big"
|
|
"os"
|
|
"path/filepath"
|
|
"strings"
|
|
"time"
|
|
|
|
"github.com/ethereum/ethash"
|
|
"github.com/ethereum/go-ethereum/accounts"
|
|
"github.com/ethereum/go-ethereum/common"
|
|
"github.com/ethereum/go-ethereum/common/compiler"
|
|
"github.com/ethereum/go-ethereum/core"
|
|
"github.com/ethereum/go-ethereum/core/types"
|
|
"github.com/ethereum/go-ethereum/core/vm"
|
|
"github.com/ethereum/go-ethereum/crypto"
|
|
"github.com/ethereum/go-ethereum/eth/downloader"
|
|
"github.com/ethereum/go-ethereum/ethdb"
|
|
"github.com/ethereum/go-ethereum/event"
|
|
"github.com/ethereum/go-ethereum/logger"
|
|
"github.com/ethereum/go-ethereum/logger/glog"
|
|
"github.com/ethereum/go-ethereum/miner"
|
|
"github.com/ethereum/go-ethereum/p2p"
|
|
"github.com/ethereum/go-ethereum/p2p/discover"
|
|
"github.com/ethereum/go-ethereum/p2p/nat"
|
|
"github.com/ethereum/go-ethereum/whisper"
|
|
)
|
|
|
|
const (
|
|
epochLength = 30000
|
|
ethashRevision = 23
|
|
|
|
autoDAGcheckInterval = 10 * time.Hour
|
|
autoDAGepochHeight = epochLength / 2
|
|
)
|
|
|
|
var (
|
|
jsonlogger = logger.NewJsonLogger()
|
|
|
|
defaultBootNodes = []*discover.Node{
|
|
// ETH/DEV Go Bootnodes
|
|
discover.MustParseNode("enode://a979fb575495b8d6db44f750317d0f4622bf4c2aa3365d6af7c284339968eef29b69ad0dce72a4d8db5ebb4968de0e3bec910127f134779fbcb0cb6d3331163c@52.16.188.185:30303"),
|
|
discover.MustParseNode("enode://7f25d3eab333a6b98a8b5ed68d962bb22c876ffcd5561fca54e3c2ef27f754df6f7fd7c9b74cc919067abac154fb8e1f8385505954f161ae440abc355855e034@54.207.93.166:30303"),
|
|
// ETH/DEV cpp-ethereum (poc-9.ethdev.com)
|
|
discover.MustParseNode("enode://487611428e6c99a11a9795a6abe7b529e81315ca6aad66e2a2fc76e3adf263faba0d35466c2f8f68d561dbefa8878d4df5f1f2ddb1fbeab7f42ffb8cd328bd4a@5.1.83.226:30303"),
|
|
}
|
|
|
|
staticNodes = "static-nodes.json" // Path within <datadir> to search for the static node list
|
|
trustedNodes = "trusted-nodes.json" // Path within <datadir> to search for the trusted node list
|
|
)
|
|
|
|
type Config struct {
|
|
Name string
|
|
ProtocolVersion int
|
|
NetworkId int
|
|
|
|
BlockChainVersion int
|
|
SkipBcVersionCheck bool // e.g. blockchain export
|
|
|
|
DataDir string
|
|
LogFile string
|
|
Verbosity int
|
|
LogJSON string
|
|
VmDebug bool
|
|
NatSpec bool
|
|
AutoDAG bool
|
|
|
|
MaxPeers int
|
|
MaxPendingPeers int
|
|
Port string
|
|
|
|
// Space-separated list of discovery node URLs
|
|
BootNodes string
|
|
|
|
// This key is used to identify the node on the network.
|
|
// If nil, an ephemeral key is used.
|
|
NodeKey *ecdsa.PrivateKey
|
|
|
|
NAT nat.Interface
|
|
Shh bool
|
|
Dial bool
|
|
|
|
Etherbase string
|
|
GasPrice *big.Int
|
|
MinerThreads int
|
|
AccountManager *accounts.Manager
|
|
SolcPath string
|
|
|
|
// NewDB is used to create databases.
|
|
// If nil, the default is to create leveldb databases on disk.
|
|
NewDB func(path string) (common.Database, error)
|
|
}
|
|
|
|
func (cfg *Config) parseBootNodes() []*discover.Node {
|
|
if cfg.BootNodes == "" {
|
|
return defaultBootNodes
|
|
}
|
|
var ns []*discover.Node
|
|
for _, url := range strings.Split(cfg.BootNodes, " ") {
|
|
if url == "" {
|
|
continue
|
|
}
|
|
n, err := discover.ParseNode(url)
|
|
if err != nil {
|
|
glog.V(logger.Error).Infof("Bootstrap URL %s: %v\n", url, err)
|
|
continue
|
|
}
|
|
ns = append(ns, n)
|
|
}
|
|
return ns
|
|
}
|
|
|
|
// parseNodes parses a list of discovery node URLs loaded from a .json file.
|
|
func (cfg *Config) parseNodes(file string) []*discover.Node {
|
|
// Short circuit if no node config is present
|
|
path := filepath.Join(cfg.DataDir, file)
|
|
if _, err := os.Stat(path); err != nil {
|
|
return nil
|
|
}
|
|
// Load the nodes from the config file
|
|
blob, err := ioutil.ReadFile(path)
|
|
if err != nil {
|
|
glog.V(logger.Error).Infof("Failed to access nodes: %v", err)
|
|
return nil
|
|
}
|
|
nodelist := []string{}
|
|
if err := json.Unmarshal(blob, &nodelist); err != nil {
|
|
glog.V(logger.Error).Infof("Failed to load nodes: %v", err)
|
|
return nil
|
|
}
|
|
// Interpret the list as a discovery node array
|
|
var nodes []*discover.Node
|
|
for _, url := range nodelist {
|
|
if url == "" {
|
|
continue
|
|
}
|
|
node, err := discover.ParseNode(url)
|
|
if err != nil {
|
|
glog.V(logger.Error).Infof("Node URL %s: %v\n", url, err)
|
|
continue
|
|
}
|
|
nodes = append(nodes, node)
|
|
}
|
|
return nodes
|
|
}
|
|
|
|
func (cfg *Config) nodeKey() (*ecdsa.PrivateKey, error) {
|
|
// use explicit key from command line args if set
|
|
if cfg.NodeKey != nil {
|
|
return cfg.NodeKey, nil
|
|
}
|
|
// use persistent key if present
|
|
keyfile := filepath.Join(cfg.DataDir, "nodekey")
|
|
key, err := crypto.LoadECDSA(keyfile)
|
|
if err == nil {
|
|
return key, nil
|
|
}
|
|
// no persistent key, generate and store a new one
|
|
if key, err = crypto.GenerateKey(); err != nil {
|
|
return nil, fmt.Errorf("could not generate server key: %v", err)
|
|
}
|
|
if err := crypto.SaveECDSA(keyfile, key); err != nil {
|
|
glog.V(logger.Error).Infoln("could not persist nodekey: ", err)
|
|
}
|
|
return key, nil
|
|
}
|
|
|
|
type Ethereum struct {
|
|
// Channel for shutting down the ethereum
|
|
shutdownChan chan bool
|
|
|
|
// DB interfaces
|
|
blockDb common.Database // Block chain database
|
|
stateDb common.Database // State changes database
|
|
extraDb common.Database // Extra database (txs, etc)
|
|
|
|
// Closed when databases are flushed and closed
|
|
databasesClosed chan bool
|
|
|
|
//*** SERVICES ***
|
|
// State manager for processing new blocks and managing the over all states
|
|
blockProcessor *core.BlockProcessor
|
|
txPool *core.TxPool
|
|
chainManager *core.ChainManager
|
|
accountManager *accounts.Manager
|
|
whisper *whisper.Whisper
|
|
pow *ethash.Ethash
|
|
protocolManager *ProtocolManager
|
|
downloader *downloader.Downloader
|
|
SolcPath string
|
|
solc *compiler.Solidity
|
|
|
|
net *p2p.Server
|
|
eventMux *event.TypeMux
|
|
txSub event.Subscription
|
|
miner *miner.Miner
|
|
|
|
// logger logger.LogSystem
|
|
|
|
Mining bool
|
|
MinerThreads int
|
|
NatSpec bool
|
|
DataDir string
|
|
AutoDAG bool
|
|
autodagquit chan bool
|
|
etherbase common.Address
|
|
clientVersion string
|
|
ethVersionId int
|
|
netVersionId int
|
|
shhVersionId int
|
|
}
|
|
|
|
func New(config *Config) (*Ethereum, error) {
|
|
// Bootstrap database
|
|
logger.New(config.DataDir, config.LogFile, config.Verbosity)
|
|
if len(config.LogJSON) > 0 {
|
|
logger.NewJSONsystem(config.DataDir, config.LogJSON)
|
|
}
|
|
|
|
// Let the database take 3/4 of the max open files (TODO figure out a way to get the actual limit of the open files)
|
|
const dbCount = 3
|
|
ethdb.OpenFileLimit = 128 / (dbCount + 1)
|
|
|
|
newdb := config.NewDB
|
|
if newdb == nil {
|
|
newdb = func(path string) (common.Database, error) { return ethdb.NewLDBDatabase(path) }
|
|
}
|
|
blockDb, err := newdb(filepath.Join(config.DataDir, "blockchain"))
|
|
if err != nil {
|
|
return nil, fmt.Errorf("blockchain db err: %v", err)
|
|
}
|
|
stateDb, err := newdb(filepath.Join(config.DataDir, "state"))
|
|
if err != nil {
|
|
return nil, fmt.Errorf("state db err: %v", err)
|
|
}
|
|
extraDb, err := newdb(filepath.Join(config.DataDir, "extra"))
|
|
if err != nil {
|
|
return nil, fmt.Errorf("extra db err: %v", err)
|
|
}
|
|
nodeDb := filepath.Join(config.DataDir, "nodes")
|
|
|
|
// Perform database sanity checks
|
|
d, _ := blockDb.Get([]byte("ProtocolVersion"))
|
|
protov := int(common.NewValue(d).Uint())
|
|
if protov != config.ProtocolVersion && protov != 0 {
|
|
path := filepath.Join(config.DataDir, "blockchain")
|
|
return nil, fmt.Errorf("Database version mismatch. Protocol(%d / %d). `rm -rf %s`", protov, config.ProtocolVersion, path)
|
|
}
|
|
saveProtocolVersion(blockDb, config.ProtocolVersion)
|
|
glog.V(logger.Info).Infof("Protocol Version: %v, Network Id: %v", config.ProtocolVersion, config.NetworkId)
|
|
|
|
if !config.SkipBcVersionCheck {
|
|
b, _ := blockDb.Get([]byte("BlockchainVersion"))
|
|
bcVersion := int(common.NewValue(b).Uint())
|
|
if bcVersion != config.BlockChainVersion && bcVersion != 0 {
|
|
return nil, fmt.Errorf("Blockchain DB version mismatch (%d / %d). Run geth upgradedb.\n", bcVersion, config.BlockChainVersion)
|
|
}
|
|
saveBlockchainVersion(blockDb, config.BlockChainVersion)
|
|
}
|
|
glog.V(logger.Info).Infof("Blockchain DB Version: %d", config.BlockChainVersion)
|
|
|
|
eth := &Ethereum{
|
|
shutdownChan: make(chan bool),
|
|
databasesClosed: make(chan bool),
|
|
blockDb: blockDb,
|
|
stateDb: stateDb,
|
|
extraDb: extraDb,
|
|
eventMux: &event.TypeMux{},
|
|
accountManager: config.AccountManager,
|
|
DataDir: config.DataDir,
|
|
etherbase: common.HexToAddress(config.Etherbase),
|
|
clientVersion: config.Name, // TODO should separate from Name
|
|
ethVersionId: config.ProtocolVersion,
|
|
netVersionId: config.NetworkId,
|
|
NatSpec: config.NatSpec,
|
|
MinerThreads: config.MinerThreads,
|
|
SolcPath: config.SolcPath,
|
|
AutoDAG: config.AutoDAG,
|
|
}
|
|
|
|
eth.pow = ethash.New()
|
|
eth.chainManager = core.NewChainManager(blockDb, stateDb, eth.pow, eth.EventMux())
|
|
eth.downloader = downloader.New(eth.EventMux(), eth.chainManager.HasBlock, eth.chainManager.GetBlock)
|
|
eth.txPool = core.NewTxPool(eth.EventMux(), eth.chainManager.State, eth.chainManager.GasLimit)
|
|
eth.blockProcessor = core.NewBlockProcessor(stateDb, extraDb, eth.pow, eth.txPool, eth.chainManager, eth.EventMux())
|
|
eth.chainManager.SetProcessor(eth.blockProcessor)
|
|
eth.miner = miner.New(eth, eth.EventMux(), eth.pow)
|
|
eth.miner.SetGasPrice(config.GasPrice)
|
|
|
|
eth.protocolManager = NewProtocolManager(config.ProtocolVersion, config.NetworkId, eth.eventMux, eth.txPool, eth.chainManager, eth.downloader)
|
|
if config.Shh {
|
|
eth.whisper = whisper.New()
|
|
eth.shhVersionId = int(eth.whisper.Version())
|
|
}
|
|
|
|
netprv, err := config.nodeKey()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
protocols := []p2p.Protocol{eth.protocolManager.SubProtocol}
|
|
if config.Shh {
|
|
protocols = append(protocols, eth.whisper.Protocol())
|
|
}
|
|
eth.net = &p2p.Server{
|
|
PrivateKey: netprv,
|
|
Name: config.Name,
|
|
MaxPeers: config.MaxPeers,
|
|
MaxPendingPeers: config.MaxPendingPeers,
|
|
Protocols: protocols,
|
|
NAT: config.NAT,
|
|
NoDial: !config.Dial,
|
|
BootstrapNodes: config.parseBootNodes(),
|
|
StaticNodes: config.parseNodes(staticNodes),
|
|
TrustedNodes: config.parseNodes(trustedNodes),
|
|
NodeDatabase: nodeDb,
|
|
}
|
|
if len(config.Port) > 0 {
|
|
eth.net.ListenAddr = ":" + config.Port
|
|
}
|
|
|
|
vm.Debug = config.VmDebug
|
|
|
|
return eth, nil
|
|
}
|
|
|
|
type NodeInfo struct {
|
|
Name string
|
|
NodeUrl string
|
|
NodeID string
|
|
IP string
|
|
DiscPort int // UDP listening port for discovery protocol
|
|
TCPPort int // TCP listening port for RLPx
|
|
Td string
|
|
ListenAddr string
|
|
}
|
|
|
|
func (s *Ethereum) NodeInfo() *NodeInfo {
|
|
node := s.net.Self()
|
|
|
|
return &NodeInfo{
|
|
Name: s.Name(),
|
|
NodeUrl: node.String(),
|
|
NodeID: node.ID.String(),
|
|
IP: node.IP.String(),
|
|
DiscPort: int(node.UDP),
|
|
TCPPort: int(node.TCP),
|
|
ListenAddr: s.net.ListenAddr,
|
|
Td: s.ChainManager().Td().String(),
|
|
}
|
|
}
|
|
|
|
type PeerInfo struct {
|
|
ID string
|
|
Name string
|
|
Caps string
|
|
RemoteAddress string
|
|
LocalAddress string
|
|
}
|
|
|
|
func newPeerInfo(peer *p2p.Peer) *PeerInfo {
|
|
var caps []string
|
|
for _, cap := range peer.Caps() {
|
|
caps = append(caps, cap.String())
|
|
}
|
|
return &PeerInfo{
|
|
ID: peer.ID().String(),
|
|
Name: peer.Name(),
|
|
Caps: strings.Join(caps, ", "),
|
|
RemoteAddress: peer.RemoteAddr().String(),
|
|
LocalAddress: peer.LocalAddr().String(),
|
|
}
|
|
}
|
|
|
|
// PeersInfo returns an array of PeerInfo objects describing connected peers
|
|
func (s *Ethereum) PeersInfo() (peersinfo []*PeerInfo) {
|
|
for _, peer := range s.net.Peers() {
|
|
if peer != nil {
|
|
peersinfo = append(peersinfo, newPeerInfo(peer))
|
|
}
|
|
}
|
|
return
|
|
}
|
|
|
|
func (s *Ethereum) ResetWithGenesisBlock(gb *types.Block) {
|
|
s.chainManager.ResetWithGenesisBlock(gb)
|
|
}
|
|
|
|
func (s *Ethereum) StartMining(threads int) error {
|
|
eb, err := s.Etherbase()
|
|
if err != nil {
|
|
err = fmt.Errorf("Cannot start mining without etherbase address: %v", err)
|
|
glog.V(logger.Error).Infoln(err)
|
|
return err
|
|
}
|
|
|
|
go s.miner.Start(eb, threads)
|
|
return nil
|
|
}
|
|
|
|
func (s *Ethereum) Etherbase() (eb common.Address, err error) {
|
|
eb = s.etherbase
|
|
if (eb == common.Address{}) {
|
|
primary, err := s.accountManager.Primary()
|
|
if err != nil {
|
|
return eb, err
|
|
}
|
|
if (primary == common.Address{}) {
|
|
err = fmt.Errorf("no accounts found")
|
|
return eb, err
|
|
}
|
|
eb = primary
|
|
}
|
|
return eb, nil
|
|
}
|
|
|
|
func (s *Ethereum) StopMining() { s.miner.Stop() }
|
|
func (s *Ethereum) IsMining() bool { return s.miner.Mining() }
|
|
func (s *Ethereum) Miner() *miner.Miner { return s.miner }
|
|
|
|
// func (s *Ethereum) Logger() logger.LogSystem { return s.logger }
|
|
func (s *Ethereum) Name() string { return s.net.Name }
|
|
func (s *Ethereum) AccountManager() *accounts.Manager { return s.accountManager }
|
|
func (s *Ethereum) ChainManager() *core.ChainManager { return s.chainManager }
|
|
func (s *Ethereum) BlockProcessor() *core.BlockProcessor { return s.blockProcessor }
|
|
func (s *Ethereum) TxPool() *core.TxPool { return s.txPool }
|
|
func (s *Ethereum) Whisper() *whisper.Whisper { return s.whisper }
|
|
func (s *Ethereum) EventMux() *event.TypeMux { return s.eventMux }
|
|
func (s *Ethereum) BlockDb() common.Database { return s.blockDb }
|
|
func (s *Ethereum) StateDb() common.Database { return s.stateDb }
|
|
func (s *Ethereum) ExtraDb() common.Database { return s.extraDb }
|
|
func (s *Ethereum) IsListening() bool { return true } // Always listening
|
|
func (s *Ethereum) PeerCount() int { return s.net.PeerCount() }
|
|
func (s *Ethereum) Peers() []*p2p.Peer { return s.net.Peers() }
|
|
func (s *Ethereum) MaxPeers() int { return s.net.MaxPeers }
|
|
func (s *Ethereum) ClientVersion() string { return s.clientVersion }
|
|
func (s *Ethereum) EthVersion() int { return s.ethVersionId }
|
|
func (s *Ethereum) NetVersion() int { return s.netVersionId }
|
|
func (s *Ethereum) ShhVersion() int { return s.shhVersionId }
|
|
func (s *Ethereum) Downloader() *downloader.Downloader { return s.downloader }
|
|
|
|
// Start the ethereum
|
|
func (s *Ethereum) Start() error {
|
|
jsonlogger.LogJson(&logger.LogStarting{
|
|
ClientString: s.net.Name,
|
|
ProtocolVersion: ProtocolVersion,
|
|
})
|
|
|
|
if s.net.MaxPeers > 0 {
|
|
err := s.net.Start()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
}
|
|
|
|
// periodically flush databases
|
|
go s.syncDatabases()
|
|
|
|
if s.AutoDAG {
|
|
s.StartAutoDAG()
|
|
}
|
|
|
|
// Start services
|
|
go s.txPool.Start()
|
|
s.protocolManager.Start()
|
|
|
|
if s.whisper != nil {
|
|
s.whisper.Start()
|
|
}
|
|
|
|
// broadcast transactions
|
|
s.txSub = s.eventMux.Subscribe(core.TxPreEvent{})
|
|
go s.txBroadcastLoop()
|
|
|
|
glog.V(logger.Info).Infoln("Server started")
|
|
return nil
|
|
}
|
|
|
|
// sync databases every minute. If flushing fails we exit immediatly. The system
|
|
// may not continue under any circumstances.
|
|
func (s *Ethereum) syncDatabases() {
|
|
ticker := time.NewTicker(1 * time.Minute)
|
|
done:
|
|
for {
|
|
select {
|
|
case <-ticker.C:
|
|
// don't change the order of database flushes
|
|
if err := s.extraDb.Flush(); err != nil {
|
|
glog.Fatalf("fatal error: flush extraDb: %v (Restart your node. We are aware of this issue)\n", err)
|
|
}
|
|
if err := s.stateDb.Flush(); err != nil {
|
|
glog.Fatalf("fatal error: flush stateDb: %v (Restart your node. We are aware of this issue)\n", err)
|
|
}
|
|
if err := s.blockDb.Flush(); err != nil {
|
|
glog.Fatalf("fatal error: flush blockDb: %v (Restart your node. We are aware of this issue)\n", err)
|
|
}
|
|
case <-s.shutdownChan:
|
|
break done
|
|
}
|
|
}
|
|
|
|
s.blockDb.Close()
|
|
s.stateDb.Close()
|
|
s.extraDb.Close()
|
|
|
|
close(s.databasesClosed)
|
|
}
|
|
|
|
func (s *Ethereum) StartForTest() {
|
|
jsonlogger.LogJson(&logger.LogStarting{
|
|
ClientString: s.net.Name,
|
|
ProtocolVersion: ProtocolVersion,
|
|
})
|
|
|
|
// Start services
|
|
s.txPool.Start()
|
|
}
|
|
|
|
// AddPeer connects to the given node and maintains the connection until the
|
|
// server is shut down. If the connection fails for any reason, the server will
|
|
// attempt to reconnect the peer.
|
|
func (self *Ethereum) AddPeer(nodeURL string) error {
|
|
n, err := discover.ParseNode(nodeURL)
|
|
if err != nil {
|
|
return fmt.Errorf("invalid node URL: %v", err)
|
|
}
|
|
self.net.AddPeer(n)
|
|
return nil
|
|
}
|
|
|
|
func (s *Ethereum) Stop() {
|
|
s.txSub.Unsubscribe() // quits txBroadcastLoop
|
|
|
|
s.protocolManager.Stop()
|
|
s.chainManager.Stop()
|
|
s.txPool.Stop()
|
|
s.eventMux.Stop()
|
|
if s.whisper != nil {
|
|
s.whisper.Stop()
|
|
}
|
|
s.StopAutoDAG()
|
|
|
|
glog.V(logger.Info).Infoln("Server stopped")
|
|
close(s.shutdownChan)
|
|
}
|
|
|
|
// This function will wait for a shutdown and resumes main thread execution
|
|
func (s *Ethereum) WaitForShutdown() {
|
|
<-s.databasesClosed
|
|
<-s.shutdownChan
|
|
}
|
|
|
|
func (self *Ethereum) txBroadcastLoop() {
|
|
// automatically stops if unsubscribe
|
|
for obj := range self.txSub.Chan() {
|
|
event := obj.(core.TxPreEvent)
|
|
self.syncAccounts(event.Tx)
|
|
}
|
|
}
|
|
|
|
// keep accounts synced up
|
|
func (self *Ethereum) syncAccounts(tx *types.Transaction) {
|
|
from, err := tx.From()
|
|
if err != nil {
|
|
return
|
|
}
|
|
|
|
if self.accountManager.HasAccount(from) {
|
|
if self.chainManager.TxState().GetNonce(from) < tx.Nonce() {
|
|
self.chainManager.TxState().SetNonce(from, tx.Nonce())
|
|
}
|
|
}
|
|
}
|
|
|
|
// StartAutoDAG() spawns a go routine that checks the DAG every autoDAGcheckInterval
|
|
// by default that is 10 times per epoch
|
|
// in epoch n, if we past autoDAGepochHeight within-epoch blocks,
|
|
// it calls ethash.MakeDAG to pregenerate the DAG for the next epoch n+1
|
|
// if it does not exist yet as well as remove the DAG for epoch n-1
|
|
// the loop quits if autodagquit channel is closed, it can safely restart and
|
|
// stop any number of times.
|
|
// For any more sophisticated pattern of DAG generation, use CLI subcommand
|
|
// makedag
|
|
func (self *Ethereum) StartAutoDAG() {
|
|
if self.autodagquit != nil {
|
|
return // already started
|
|
}
|
|
go func() {
|
|
glog.V(logger.Info).Infof("Automatic pregeneration of ethash DAG ON (ethash dir: %s)", ethash.DefaultDir)
|
|
var nextEpoch uint64
|
|
timer := time.After(0)
|
|
self.autodagquit = make(chan bool)
|
|
for {
|
|
select {
|
|
case <-timer:
|
|
glog.V(logger.Info).Infof("checking DAG (ethash dir: %s)", ethash.DefaultDir)
|
|
currentBlock := self.ChainManager().CurrentBlock().NumberU64()
|
|
thisEpoch := currentBlock / epochLength
|
|
if nextEpoch <= thisEpoch {
|
|
if currentBlock%epochLength > autoDAGepochHeight {
|
|
if thisEpoch > 0 {
|
|
previousDag, previousDagFull := dagFiles(thisEpoch - 1)
|
|
os.Remove(filepath.Join(ethash.DefaultDir, previousDag))
|
|
os.Remove(filepath.Join(ethash.DefaultDir, previousDagFull))
|
|
glog.V(logger.Info).Infof("removed DAG for epoch %d (%s)", thisEpoch-1, previousDag)
|
|
}
|
|
nextEpoch = thisEpoch + 1
|
|
dag, _ := dagFiles(nextEpoch)
|
|
if _, err := os.Stat(dag); os.IsNotExist(err) {
|
|
glog.V(logger.Info).Infof("Pregenerating DAG for epoch %d (%s)", nextEpoch, dag)
|
|
err := ethash.MakeDAG(nextEpoch*epochLength, "") // "" -> ethash.DefaultDir
|
|
if err != nil {
|
|
glog.V(logger.Error).Infof("Error generating DAG for epoch %d (%s)", nextEpoch, dag)
|
|
return
|
|
}
|
|
} else {
|
|
glog.V(logger.Error).Infof("DAG for epoch %d (%s)", nextEpoch, dag)
|
|
}
|
|
}
|
|
}
|
|
timer = time.After(autoDAGcheckInterval)
|
|
case <-self.autodagquit:
|
|
return
|
|
}
|
|
}
|
|
}()
|
|
}
|
|
|
|
// dagFiles(epoch) returns the two alternative DAG filenames (not a path)
|
|
// 1) <revision>-<hex(seedhash[8])> 2) full-R<revision>-<hex(seedhash[8])>
|
|
func dagFiles(epoch uint64) (string, string) {
|
|
seedHash, _ := ethash.GetSeedHash(epoch * epochLength)
|
|
dag := fmt.Sprintf("full-R%d-%x", ethashRevision, seedHash[:8])
|
|
return dag, "full-R" + dag
|
|
}
|
|
|
|
// stopAutoDAG stops automatic DAG pregeneration by quitting the loop
|
|
func (self *Ethereum) StopAutoDAG() {
|
|
if self.autodagquit != nil {
|
|
close(self.autodagquit)
|
|
self.autodagquit = nil
|
|
}
|
|
glog.V(logger.Info).Infof("Automatic pregeneration of ethash DAG OFF (ethash dir: %s)", ethash.DefaultDir)
|
|
}
|
|
|
|
func saveProtocolVersion(db common.Database, protov int) {
|
|
d, _ := db.Get([]byte("ProtocolVersion"))
|
|
protocolVersion := common.NewValue(d).Uint()
|
|
|
|
if protocolVersion == 0 {
|
|
db.Put([]byte("ProtocolVersion"), common.NewValue(protov).Bytes())
|
|
}
|
|
}
|
|
|
|
func saveBlockchainVersion(db common.Database, bcVersion int) {
|
|
d, _ := db.Get([]byte("BlockchainVersion"))
|
|
blockchainVersion := common.NewValue(d).Uint()
|
|
|
|
if blockchainVersion == 0 {
|
|
db.Put([]byte("BlockchainVersion"), common.NewValue(bcVersion).Bytes())
|
|
}
|
|
}
|
|
|
|
func (self *Ethereum) Solc() (*compiler.Solidity, error) {
|
|
var err error
|
|
if self.solc == nil {
|
|
self.solc, err = compiler.New(self.SolcPath)
|
|
}
|
|
return self.solc, err
|
|
}
|
|
|
|
// set in js console via admin interface or wrapper from cli flags
|
|
func (self *Ethereum) SetSolc(solcPath string) (*compiler.Solidity, error) {
|
|
self.SolcPath = solcPath
|
|
self.solc = nil
|
|
return self.Solc()
|
|
}
|