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core, eth: split eth package, implement snap protocol (#21482)

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This commit splits the eth package, separating the handling of eth and snap protocols. It also includes the capability to run snap sync (https://github.com/ethereum/devp2p/blob/master/caps/snap.md) , but does not enable it by default. 

Co-authored-by: Marius van der Wijden <m.vanderwijden@live.de>
Co-authored-by: Martin Holst Swende <martin@swende.se>
This commit is contained in:
Péter Szilágyi
2020-12-14 11:27:15 +02:00
committed by GitHub
parent 00d10e610f
commit 017831dd5b
74 changed files with 8246 additions and 3411 deletions
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60
eth/backend.go
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@ -40,6 +40,8 @@ import (
"github.com/ethereum/go-ethereum/eth/downloader"
"github.com/ethereum/go-ethereum/eth/filters"
"github.com/ethereum/go-ethereum/eth/gasprice"
"github.com/ethereum/go-ethereum/eth/protocols/eth"
"github.com/ethereum/go-ethereum/eth/protocols/snap"
"github.com/ethereum/go-ethereum/ethdb"
"github.com/ethereum/go-ethereum/event"
"github.com/ethereum/go-ethereum/internal/ethapi"
@ -48,7 +50,6 @@ import (
"github.com/ethereum/go-ethereum/node"
"github.com/ethereum/go-ethereum/p2p"
"github.com/ethereum/go-ethereum/p2p/enode"
"github.com/ethereum/go-ethereum/p2p/enr"
"github.com/ethereum/go-ethereum/params"
"github.com/ethereum/go-ethereum/rlp"
"github.com/ethereum/go-ethereum/rpc"
@ -59,10 +60,11 @@ type Ethereum struct {
config *Config
// Handlers
txPool *core.TxPool
blockchain *core.BlockChain
protocolManager *ProtocolManager
dialCandidates enode.Iterator
txPool *core.TxPool
blockchain *core.BlockChain
handler *handler
ethDialCandidates enode.Iterator
snapDialCandidates enode.Iterator
// DB interfaces
chainDb ethdb.Database // Block chain database
@ -145,7 +147,7 @@ func New(stack *node.Node, config *Config) (*Ethereum, error) {
if bcVersion != nil {
dbVer = fmt.Sprintf("%d", *bcVersion)
}
log.Info("Initialising Ethereum protocol", "versions", ProtocolVersions, "network", config.NetworkId, "dbversion", dbVer)
log.Info("Initialising Ethereum protocol", "network", config.NetworkId, "dbversion", dbVer)
if !config.SkipBcVersionCheck {
if bcVersion != nil && *bcVersion > core.BlockChainVersion {
@ -196,7 +198,17 @@ func New(stack *node.Node, config *Config) (*Ethereum, error) {
if checkpoint == nil {
checkpoint = params.TrustedCheckpoints[genesisHash]
}
if eth.protocolManager, err = NewProtocolManager(chainConfig, checkpoint, config.SyncMode, config.NetworkId, eth.eventMux, eth.txPool, eth.engine, eth.blockchain, chainDb, cacheLimit, config.Whitelist); err != nil {
if eth.handler, err = newHandler(&handlerConfig{
Database: chainDb,
Chain: eth.blockchain,
TxPool: eth.txPool,
Network: config.NetworkId,
Sync: config.SyncMode,
BloomCache: uint64(cacheLimit),
EventMux: eth.eventMux,
Checkpoint: checkpoint,
Whitelist: config.Whitelist,
}); err != nil {
return nil, err
}
eth.miner = miner.New(eth, &config.Miner, chainConfig, eth.EventMux(), eth.engine, eth.isLocalBlock)
@ -209,13 +221,16 @@ func New(stack *node.Node, config *Config) (*Ethereum, error) {
}
eth.APIBackend.gpo = gasprice.NewOracle(eth.APIBackend, gpoParams)
eth.dialCandidates, err = eth.setupDiscovery()
eth.ethDialCandidates, err = setupDiscovery(eth.config.EthDiscoveryURLs)
if err != nil {
return nil, err
}
eth.snapDialCandidates, err = setupDiscovery(eth.config.SnapDiscoveryURLs)
if err != nil {
return nil, err
}
// Start the RPC service
eth.netRPCService = ethapi.NewPublicNetAPI(eth.p2pServer, eth.NetVersion())
eth.netRPCService = ethapi.NewPublicNetAPI(eth.p2pServer)
// Register the backend on the node
stack.RegisterAPIs(eth.APIs())
@ -310,7 +325,7 @@ func (s *Ethereum) APIs() []rpc.API {
}, {
Namespace: "eth",
Version: "1.0",
Service: downloader.NewPublicDownloaderAPI(s.protocolManager.downloader, s.eventMux),
Service: downloader.NewPublicDownloaderAPI(s.handler.downloader, s.eventMux),
Public: true,
}, {
Namespace: "miner",
@ -473,7 +488,7 @@ func (s *Ethereum) StartMining(threads int) error {
}
// If mining is started, we can disable the transaction rejection mechanism
// introduced to speed sync times.
atomic.StoreUint32(&s.protocolManager.acceptTxs, 1)
atomic.StoreUint32(&s.handler.acceptTxs, 1)
go s.miner.Start(eb)
}
@ -504,21 +519,17 @@ func (s *Ethereum) EventMux() *event.TypeMux { return s.eventMux }
func (s *Ethereum) Engine() consensus.Engine { return s.engine }
func (s *Ethereum) ChainDb() ethdb.Database { return s.chainDb }
func (s *Ethereum) IsListening() bool { return true } // Always listening
func (s *Ethereum) EthVersion() int { return int(ProtocolVersions[0]) }
func (s *Ethereum) NetVersion() uint64 { return s.networkID }
func (s *Ethereum) Downloader() *downloader.Downloader { return s.protocolManager.downloader }
func (s *Ethereum) Synced() bool { return atomic.LoadUint32(&s.protocolManager.acceptTxs) == 1 }
func (s *Ethereum) Downloader() *downloader.Downloader { return s.handler.downloader }
func (s *Ethereum) Synced() bool { return atomic.LoadUint32(&s.handler.acceptTxs) == 1 }
func (s *Ethereum) ArchiveMode() bool { return s.config.NoPruning }
func (s *Ethereum) BloomIndexer() *core.ChainIndexer { return s.bloomIndexer }
// Protocols returns all the currently configured
// network protocols to start.
func (s *Ethereum) Protocols() []p2p.Protocol {
protos := make([]p2p.Protocol, len(ProtocolVersions))
for i, vsn := range ProtocolVersions {
protos[i] = s.protocolManager.makeProtocol(vsn)
protos[i].Attributes = []enr.Entry{s.currentEthEntry()}
protos[i].DialCandidates = s.dialCandidates
protos := eth.MakeProtocols((*ethHandler)(s.handler), s.networkID, s.ethDialCandidates)
if s.config.SnapshotCache > 0 {
protos = append(protos, snap.MakeProtocols((*snapHandler)(s.handler), s.snapDialCandidates)...)
}
return protos
}
@ -526,7 +537,7 @@ func (s *Ethereum) Protocols() []p2p.Protocol {
// Start implements node.Lifecycle, starting all internal goroutines needed by the
// Ethereum protocol implementation.
func (s *Ethereum) Start() error {
s.startEthEntryUpdate(s.p2pServer.LocalNode())
eth.StartENRUpdater(s.blockchain, s.p2pServer.LocalNode())
// Start the bloom bits servicing goroutines
s.startBloomHandlers(params.BloomBitsBlocks)
@ -540,7 +551,7 @@ func (s *Ethereum) Start() error {
maxPeers -= s.config.LightPeers
}
// Start the networking layer and the light server if requested
s.protocolManager.Start(maxPeers)
s.handler.Start(maxPeers)
return nil
}
@ -548,7 +559,7 @@ func (s *Ethereum) Start() error {
// Ethereum protocol.
func (s *Ethereum) Stop() error {
// Stop all the peer-related stuff first.
s.protocolManager.Stop()
s.handler.Stop()
// Then stop everything else.
s.bloomIndexer.Close()
@ -560,5 +571,6 @@ func (s *Ethereum) Stop() error {
rawdb.PopUncleanShutdownMarker(s.chainDb)
s.chainDb.Close()
s.eventMux.Stop()
return nil
}