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Merge branch 'master' into multiplex-ws-rpc

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This commit is contained in:
renaynay 2020-03-30 10:37:24 +02:00
commit 2538a69a98
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10 changed files with 215 additions and 141 deletions
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2
core/blockchain.go
View file

@ -897,7 +897,7 @@ func (bc *BlockChain) Stop() {
log.Error("Dangling trie nodes after full cleanup")
}
}
log.Info("Blockchain manager stopped")
log.Info("Blockchain stopped")
}
func (bc *BlockChain) procFutureBlocks() {

44
eth/backend.go
View file

@ -67,9 +67,6 @@ type LesServer interface {
type Ethereum struct {
config *Config
// Channel for shutting down the service
shutdownChan chan bool
// Handlers
txPool *core.TxPool
blockchain *core.BlockChain
@ -84,8 +81,9 @@ type Ethereum struct {
engine consensus.Engine
accountManager *accounts.Manager
bloomRequests chan chan *bloombits.Retrieval // Channel receiving bloom data retrieval requests
bloomIndexer *core.ChainIndexer // Bloom indexer operating during block imports
bloomRequests chan chan *bloombits.Retrieval // Channel receiving bloom data retrieval requests
bloomIndexer *core.ChainIndexer // Bloom indexer operating during block imports
closeBloomHandler chan struct{}
APIBackend *EthAPIBackend
@ -145,17 +143,17 @@ func New(ctx *node.ServiceContext, config *Config) (*Ethereum, error) {
log.Info("Initialised chain configuration", "config", chainConfig)
eth := &Ethereum{
config: config,
chainDb: chainDb,
eventMux: ctx.EventMux,
accountManager: ctx.AccountManager,
engine: CreateConsensusEngine(ctx, chainConfig, &config.Ethash, config.Miner.Notify, config.Miner.Noverify, chainDb),
shutdownChan: make(chan bool),
networkID: config.NetworkId,
gasPrice: config.Miner.GasPrice,
etherbase: config.Miner.Etherbase,
bloomRequests: make(chan chan *bloombits.Retrieval),
bloomIndexer: NewBloomIndexer(chainDb, params.BloomBitsBlocks, params.BloomConfirms),
config: config,
chainDb: chainDb,
eventMux: ctx.EventMux,
accountManager: ctx.AccountManager,
engine: CreateConsensusEngine(ctx, chainConfig, &config.Ethash, config.Miner.Notify, config.Miner.Noverify, chainDb),
closeBloomHandler: make(chan struct{}),
networkID: config.NetworkId,
gasPrice: config.Miner.GasPrice,
etherbase: config.Miner.Etherbase,
bloomRequests: make(chan chan *bloombits.Retrieval),
bloomIndexer: NewBloomIndexer(chainDb, params.BloomBitsBlocks, params.BloomConfirms),
}
bcVersion := rawdb.ReadDatabaseVersion(chainDb)
@ -557,18 +555,20 @@ func (s *Ethereum) Start(srvr *p2p.Server) error {
// Stop implements node.Service, terminating all internal goroutines used by the
// Ethereum protocol.
func (s *Ethereum) Stop() error {
s.bloomIndexer.Close()
s.blockchain.Stop()
s.engine.Close()
// Stop all the peer-related stuff first.
s.protocolManager.Stop()
if s.lesServer != nil {
s.lesServer.Stop()
}
// Then stop everything else.
s.bloomIndexer.Close()
close(s.closeBloomHandler)
s.txPool.Stop()
s.miner.Stop()
s.eventMux.Stop()
s.blockchain.Stop()
s.engine.Close()
s.chainDb.Close()
close(s.shutdownChan)
s.eventMux.Stop()
return nil
}

2
eth/bloombits.go
View file

@ -54,7 +54,7 @@ func (eth *Ethereum) startBloomHandlers(sectionSize uint64) {
go func() {
for {
select {
case <-eth.shutdownChan:
case <-eth.closeBloomHandler:
return
case request := <-eth.bloomRequests:

2
eth/filters/filter.go
View file

@ -210,7 +210,7 @@ func (f *Filter) indexedLogs(ctx context.Context, end uint64) ([]*types.Log, err
}
}
// indexedLogs returns the logs matching the filter criteria based on raw block
// unindexedLogs returns the logs matching the filter criteria based on raw block
// iteration and bloom matching.
func (f *Filter) unindexedLogs(ctx context.Context, end uint64) ([]*types.Log, error) {
var logs []*types.Log

95
eth/handler.go
View file

@ -87,14 +87,12 @@ type ProtocolManager struct {
whitelist map[uint64]common.Hash
// channels for fetcher, syncer, txsyncLoop
newPeerCh chan *peer
txsyncCh chan *txsync
quitSync chan struct{}
noMorePeers chan struct{}
txsyncCh chan *txsync
quitSync chan struct{}
// wait group is used for graceful shutdowns during downloading
// and processing
wg sync.WaitGroup
chainSync *chainSyncer
wg sync.WaitGroup
peerWG sync.WaitGroup
// Test fields or hooks
broadcastTxAnnouncesOnly bool // Testing field, disable transaction propagation
@ -105,18 +103,17 @@ type ProtocolManager struct {
func NewProtocolManager(config *params.ChainConfig, checkpoint *params.TrustedCheckpoint, mode downloader.SyncMode, networkID uint64, mux *event.TypeMux, txpool txPool, engine consensus.Engine, blockchain *core.BlockChain, chaindb ethdb.Database, cacheLimit int, whitelist map[uint64]common.Hash) (*ProtocolManager, error) {
// Create the protocol manager with the base fields
manager := &ProtocolManager{
networkID: networkID,
forkFilter: forkid.NewFilter(blockchain),
eventMux: mux,
txpool: txpool,
blockchain: blockchain,
peers: newPeerSet(),
whitelist: whitelist,
newPeerCh: make(chan *peer),
noMorePeers: make(chan struct{}),
txsyncCh: make(chan *txsync),
quitSync: make(chan struct{}),
networkID: networkID,
forkFilter: forkid.NewFilter(blockchain),
eventMux: mux,
txpool: txpool,
blockchain: blockchain,
peers: newPeerSet(),
whitelist: whitelist,
txsyncCh: make(chan *txsync),
quitSync: make(chan struct{}),
}
if mode == downloader.FullSync {
// The database seems empty as the current block is the genesis. Yet the fast
// block is ahead, so fast sync was enabled for this node at a certain point.
@ -140,6 +137,7 @@ func NewProtocolManager(config *params.ChainConfig, checkpoint *params.TrustedCh
manager.fastSync = uint32(1)
}
}
// If we have trusted checkpoints, enforce them on the chain
if checkpoint != nil {
manager.checkpointNumber = (checkpoint.SectionIndex+1)*params.CHTFrequency - 1
@ -199,6 +197,8 @@ func NewProtocolManager(config *params.ChainConfig, checkpoint *params.TrustedCh
}
manager.txFetcher = fetcher.NewTxFetcher(txpool.Has, txpool.AddRemotes, fetchTx)
manager.chainSync = newChainSyncer(manager)
return manager, nil
}
@ -213,15 +213,7 @@ func (pm *ProtocolManager) makeProtocol(version uint) p2p.Protocol {
Version: version,
Length: length,
Run: func(p *p2p.Peer, rw p2p.MsgReadWriter) error {
peer := pm.newPeer(int(version), p, rw, pm.txpool.Get)
select {
case pm.newPeerCh <- peer:
pm.wg.Add(1)
defer pm.wg.Done()
return pm.handle(peer)
case <-pm.quitSync:
return p2p.DiscQuitting
}
return pm.runPeer(pm.newPeer(int(version), p, rw, pm.txpool.Get))
},
NodeInfo: func() interface{} {
return pm.NodeInfo()
@ -260,40 +252,37 @@ func (pm *ProtocolManager) Start(maxPeers int) {
pm.maxPeers = maxPeers
// broadcast transactions
pm.wg.Add(1)
pm.txsCh = make(chan core.NewTxsEvent, txChanSize)
pm.txsSub = pm.txpool.SubscribeNewTxsEvent(pm.txsCh)
go pm.txBroadcastLoop()
// broadcast mined blocks
pm.wg.Add(1)
pm.minedBlockSub = pm.eventMux.Subscribe(core.NewMinedBlockEvent{})
go pm.minedBroadcastLoop()
// start sync handlers
go pm.syncer()
pm.wg.Add(2)
go pm.chainSync.loop()
go pm.txsyncLoop64() // TODO(karalabe): Legacy initial tx echange, drop with eth/64.
}
func (pm *ProtocolManager) Stop() {
log.Info("Stopping Ethereum protocol")
pm.txsSub.Unsubscribe() // quits txBroadcastLoop
pm.minedBlockSub.Unsubscribe() // quits blockBroadcastLoop
// Quit the sync loop.
// After this send has completed, no new peers will be accepted.
pm.noMorePeers <- struct{}{}
// Quit fetcher, txsyncLoop.
// Quit chainSync and txsync64.
// After this is done, no new peers will be accepted.
close(pm.quitSync)
pm.wg.Wait()
// Disconnect existing sessions.
// This also closes the gate for any new registrations on the peer set.
// sessions which are already established but not added to pm.peers yet
// will exit when they try to register.
pm.peers.Close()
// Wait for all peer handler goroutines and the loops to come down.
pm.wg.Wait()
pm.peerWG.Wait()
log.Info("Ethereum protocol stopped")
}
@ -302,6 +291,15 @@ func (pm *ProtocolManager) newPeer(pv int, p *p2p.Peer, rw p2p.MsgReadWriter, ge
return newPeer(pv, p, rw, getPooledTx)
}
func (pm *ProtocolManager) runPeer(p *peer) error {
if !pm.chainSync.handlePeerEvent(p) {
return p2p.DiscQuitting
}
pm.peerWG.Add(1)
defer pm.peerWG.Done()
return pm.handle(p)
}
// handle is the callback invoked to manage the life cycle of an eth peer. When
// this function terminates, the peer is disconnected.
func (pm *ProtocolManager) handle(p *peer) error {
@ -323,6 +321,7 @@ func (pm *ProtocolManager) handle(p *peer) error {
p.Log().Debug("Ethereum handshake failed", "err", err)
return err
}
// Register the peer locally
if err := pm.peers.Register(p); err != nil {
p.Log().Error("Ethereum peer registration failed", "err", err)
@ -334,6 +333,8 @@ func (pm *ProtocolManager) handle(p *peer) error {
if err := pm.downloader.RegisterPeer(p.id, p.version, p); err != nil {
return err
}
pm.chainSync.handlePeerEvent(p)
// Propagate existing transactions. new transactions appearing
// after this will be sent via broadcasts.
pm.syncTransactions(p)
@ -723,14 +724,7 @@ func (pm *ProtocolManager) handleMsg(p *peer) error {
// Update the peer's total difficulty if better than the previous
if _, td := p.Head(); trueTD.Cmp(td) > 0 {
p.SetHead(trueHead, trueTD)
// Schedule a sync if above ours. Note, this will not fire a sync for a gap of
// a single block (as the true TD is below the propagated block), however this
// scenario should easily be covered by the fetcher.
currentHeader := pm.blockchain.CurrentHeader()
if trueTD.Cmp(pm.blockchain.GetTd(currentHeader.Hash(), currentHeader.Number.Uint64())) > 0 {
go pm.synchronise(p)
}
pm.chainSync.handlePeerEvent(p)
}
case msg.Code == NewPooledTransactionHashesMsg && p.version >= eth65:
@ -883,9 +877,10 @@ func (pm *ProtocolManager) BroadcastTransactions(txs types.Transactions, propaga
}
}
// Mined broadcast loop
// minedBroadcastLoop sends mined blocks to connected peers.
func (pm *ProtocolManager) minedBroadcastLoop() {
// automatically stops if unsubscribe
defer pm.wg.Done()
for obj := range pm.minedBlockSub.Chan() {
if ev, ok := obj.Data.(core.NewMinedBlockEvent); ok {
pm.BroadcastBlock(ev.Block, true) // First propagate block to peers
@ -894,7 +889,10 @@ func (pm *ProtocolManager) minedBroadcastLoop() {
}
}
// txBroadcastLoop announces new transactions to connected peers.
func (pm *ProtocolManager) txBroadcastLoop() {
defer pm.wg.Done()
for {
select {
case event := <-pm.txsCh:
@ -906,7 +904,6 @@ func (pm *ProtocolManager) txBroadcastLoop() {
pm.BroadcastTransactions(event.Txs, true) // First propagate transactions to peers
pm.BroadcastTransactions(event.Txs, false) // Only then announce to the rest
// Err() channel will be closed when unsubscribing.
case <-pm.txsSub.Err():
return
}

15
eth/helper_test.go
View file

@ -170,23 +170,14 @@ func newTestPeer(name string, version int, pm *ProtocolManager, shake bool) (*te
// Create a message pipe to communicate through
app, net := p2p.MsgPipe()
// Generate a random id and create the peer
// Start the peer on a new thread
var id enode.ID
rand.Read(id[:])
peer := pm.newPeer(version, p2p.NewPeer(id, name, nil), net, pm.txpool.Get)
// Start the peer on a new thread
errc := make(chan error, 1)
go func() {
select {
case pm.newPeerCh <- peer:
errc <- pm.handle(peer)
case <-pm.quitSync:
errc <- p2p.DiscQuitting
}
}()
go func() { errc <- pm.runPeer(peer) }()
tp := &testPeer{app: app, net: net, peer: peer}
// Execute any implicitly requested handshakes and return
if shake {
var (

2
eth/protocol_test.go
View file

@ -385,7 +385,7 @@ func testSyncTransaction(t *testing.T, propagtion bool) {
go pmFetcher.handle(pmFetcher.newPeer(65, p2p.NewPeer(enode.ID{}, "fetcher", nil), io1, pmFetcher.txpool.Get))
time.Sleep(250 * time.Millisecond)
pmFetcher.synchronise(pmFetcher.peers.BestPeer())
pmFetcher.doSync(peerToSyncOp(downloader.FullSync, pmFetcher.peers.BestPeer()))
atomic.StoreUint32(&pmFetcher.acceptTxs, 1)
newTxs := make(chan core.NewTxsEvent, 1024)

182
eth/sync.go
View file

@ -17,6 +17,7 @@
package eth
import (
"math/big"
"math/rand"
"sync/atomic"
"time"
@ -30,9 +31,9 @@ import (
const (
forceSyncCycle = 10 * time.Second // Time interval to force syncs, even if few peers are available
minDesiredPeerCount = 5 // Amount of peers desired to start syncing
defaultMinSyncPeers = 5 // Amount of peers desired to start syncing
// This is the target size for the packs of transactions sent by txsyncLoop.
// This is the target size for the packs of transactions sent by txsyncLoop64.
// A pack can get larger than this if a single transactions exceeds this size.
txsyncPackSize = 100 * 1024
)
@ -81,12 +82,15 @@ func (pm *ProtocolManager) syncTransactions(p *peer) {
// transactions. In order to minimise egress bandwidth usage, we send
// the transactions in small packs to one peer at a time.
func (pm *ProtocolManager) txsyncLoop64() {
defer pm.wg.Done()
var (
pending = make(map[enode.ID]*txsync)
sending = false // whether a send is active
pack = new(txsync) // the pack that is being sent
done = make(chan error, 1) // result of the send
)
// send starts a sending a pack of transactions from the sync.
send := func(s *txsync) {
if s.p.version >= eth65 {
@ -149,73 +153,148 @@ func (pm *ProtocolManager) txsyncLoop64() {
}
}
// syncer is responsible for periodically synchronising with the network, both
// downloading hashes and blocks as well as handling the announcement handler.
func (pm *ProtocolManager) syncer() {
// Start and ensure cleanup of sync mechanisms
pm.blockFetcher.Start()
pm.txFetcher.Start()
defer pm.blockFetcher.Stop()
defer pm.txFetcher.Stop()
defer pm.downloader.Terminate()
// chainSyncer coordinates blockchain sync components.
type chainSyncer struct {
pm *ProtocolManager
force *time.Timer
forced bool // true when force timer fired
peerEventCh chan struct{}
doneCh chan error // non-nil when sync is running
}
// Wait for different events to fire synchronisation operations
forceSync := time.NewTicker(forceSyncCycle)
defer forceSync.Stop()
// chainSyncOp is a scheduled sync operation.
type chainSyncOp struct {
mode downloader.SyncMode
peer *peer
td *big.Int
head common.Hash
}
// newChainSyncer creates a chainSyncer.
func newChainSyncer(pm *ProtocolManager) *chainSyncer {
return &chainSyncer{
pm: pm,
peerEventCh: make(chan struct{}),
}
}
// handlePeerEvent notifies the syncer about a change in the peer set.
// This is called for new peers and every time a peer announces a new
// chain head.
func (cs *chainSyncer) handlePeerEvent(p *peer) bool {
select {
case cs.peerEventCh <- struct{}{}:
return true
case <-cs.pm.quitSync:
return false
}
}
// loop runs in its own goroutine and launches the sync when necessary.
func (cs *chainSyncer) loop() {
defer cs.pm.wg.Done()
cs.pm.blockFetcher.Start()
cs.pm.txFetcher.Start()
defer cs.pm.blockFetcher.Stop()
defer cs.pm.txFetcher.Stop()
defer cs.pm.downloader.Terminate()
// The force timer lowers the peer count threshold down to one when it fires.
// This ensures we'll always start sync even if there aren't enough peers.
cs.force = time.NewTimer(forceSyncCycle)
defer cs.force.Stop()
for {
if op := cs.nextSyncOp(); op != nil {
cs.startSync(op)
}
select {
case <-pm.newPeerCh:
// Make sure we have peers to select from, then sync
if pm.peers.Len() < minDesiredPeerCount {
break
case <-cs.peerEventCh:
// Peer information changed, recheck.
case <-cs.doneCh:
cs.doneCh = nil
cs.force.Reset(forceSyncCycle)
cs.forced = false
case <-cs.force.C:
cs.forced = true
case <-cs.pm.quitSync:
if cs.doneCh != nil {
cs.pm.downloader.Cancel()
<-cs.doneCh
}
go pm.synchronise(pm.peers.BestPeer())
case <-forceSync.C:
// Force a sync even if not enough peers are present
go pm.synchronise(pm.peers.BestPeer())
case <-pm.noMorePeers:
return
}
}
}
// synchronise tries to sync up our local block chain with a remote peer.
func (pm *ProtocolManager) synchronise(peer *peer) {
// Short circuit if no peers are available
if peer == nil {
return
// nextSyncOp determines whether sync is required at this time.
func (cs *chainSyncer) nextSyncOp() *chainSyncOp {
if cs.doneCh != nil {
return nil // Sync already running.
}
// Make sure the peer's TD is higher than our own
currentHeader := pm.blockchain.CurrentHeader()
td := pm.blockchain.GetTd(currentHeader.Hash(), currentHeader.Number.Uint64())
pHead, pTd := peer.Head()
if pTd.Cmp(td) <= 0 {
return
// Ensure we're at mininum peer count.
minPeers := defaultMinSyncPeers
if cs.forced {
minPeers = 1
} else if minPeers > cs.pm.maxPeers {
minPeers = cs.pm.maxPeers
}
// Otherwise try to sync with the downloader
mode := downloader.FullSync
if atomic.LoadUint32(&pm.fastSync) == 1 {
// Fast sync was explicitly requested, and explicitly granted
mode = downloader.FastSync
if cs.pm.peers.Len() < minPeers {
return nil
}
if mode == downloader.FastSync {
// Make sure the peer's total difficulty we are synchronizing is higher.
if pm.blockchain.GetTdByHash(pm.blockchain.CurrentFastBlock().Hash()).Cmp(pTd) >= 0 {
return
}
// We have enough peers, check TD.
peer := cs.pm.peers.BestPeer()
if peer == nil {
return nil
}
// Run the sync cycle, and disable fast sync if we've went past the pivot block
if err := pm.downloader.Synchronise(peer.id, pHead, pTd, mode); err != nil {
return
mode, ourTD := cs.modeAndLocalHead()
op := peerToSyncOp(mode, peer)
if op.td.Cmp(ourTD) <= 0 {
return nil // We're in sync.
}
return op
}
func peerToSyncOp(mode downloader.SyncMode, p *peer) *chainSyncOp {
peerHead, peerTD := p.Head()
return &chainSyncOp{mode: mode, peer: p, td: peerTD, head: peerHead}
}
func (cs *chainSyncer) modeAndLocalHead() (downloader.SyncMode, *big.Int) {
if atomic.LoadUint32(&cs.pm.fastSync) == 1 {
block := cs.pm.blockchain.CurrentFastBlock()
td := cs.pm.blockchain.GetTdByHash(block.Hash())
return downloader.FastSync, td
} else {
head := cs.pm.blockchain.CurrentHeader()
td := cs.pm.blockchain.GetTd(head.Hash(), head.Number.Uint64())
return downloader.FullSync, td
}
}
// startSync launches doSync in a new goroutine.
func (cs *chainSyncer) startSync(op *chainSyncOp) {
cs.doneCh = make(chan error, 1)
go func() { cs.doneCh <- cs.pm.doSync(op) }()
}
// doSync synchronizes the local blockchain with a remote peer.
func (pm *ProtocolManager) doSync(op *chainSyncOp) error {
// Run the sync cycle, and disable fast sync if we're past the pivot block
err := pm.downloader.Synchronise(op.peer.id, op.head, op.td, op.mode)
if err != nil {
return err
}
if atomic.LoadUint32(&pm.fastSync) == 1 {
log.Info("Fast sync complete, auto disabling")
atomic.StoreUint32(&pm.fastSync, 0)
}
// If we've successfully finished a sync cycle and passed any required checkpoint,
// enable accepting transactions from the network.
head := pm.blockchain.CurrentBlock()
@ -226,6 +305,7 @@ func (pm *ProtocolManager) synchronise(peer *peer) {
atomic.StoreUint32(&pm.acceptTxs, 1)
}
}
if head.NumberU64() > 0 {
// We've completed a sync cycle, notify all peers of new state. This path is
// essential in star-topology networks where a gateway node needs to notify
@ -233,6 +313,8 @@ func (pm *ProtocolManager) synchronise(peer *peer) {
// scenario will most often crop up in private and hackathon networks with
// degenerate connectivity, but it should be healthy for the mainnet too to
// more reliably update peers or the local TD state.
go pm.BroadcastBlock(head, false)
pm.BroadcastBlock(head, false)
}
return nil
}

9
eth/sync_test.go
View file

@ -33,6 +33,8 @@ func TestFastSyncDisabling65(t *testing.T) { testFastSyncDisabling(t, 65) }
// Tests that fast sync gets disabled as soon as a real block is successfully
// imported into the blockchain.
func testFastSyncDisabling(t *testing.T, protocol int) {
t.Parallel()
// Create a pristine protocol manager, check that fast sync is left enabled
pmEmpty, _ := newTestProtocolManagerMust(t, downloader.FastSync, 0, nil, nil)
if atomic.LoadUint32(&pmEmpty.fastSync) == 0 {
@ -43,14 +45,17 @@ func testFastSyncDisabling(t *testing.T, protocol int) {
if atomic.LoadUint32(&pmFull.fastSync) == 1 {
t.Fatalf("fast sync not disabled on non-empty blockchain")
}
// Sync up the two peers
io1, io2 := p2p.MsgPipe()
go pmFull.handle(pmFull.newPeer(protocol, p2p.NewPeer(enode.ID{}, "empty", nil), io2, pmFull.txpool.Get))
go pmEmpty.handle(pmEmpty.newPeer(protocol, p2p.NewPeer(enode.ID{}, "full", nil), io1, pmEmpty.txpool.Get))
time.Sleep(250 * time.Millisecond)
pmEmpty.synchronise(pmEmpty.peers.BestPeer())
op := peerToSyncOp(downloader.FastSync, pmEmpty.peers.BestPeer())
if err := pmEmpty.doSync(op); err != nil {
t.Fatal("sync failed:", err)
}
// Check that fast sync was disabled
if atomic.LoadUint32(&pmEmpty.fastSync) == 1 {

3
les/peer.go
View file

@ -531,8 +531,6 @@ func (p *serverPeer) getTxRelayCost(amount, size int) uint64 {
// HasBlock checks if the peer has a given block
func (p *serverPeer) HasBlock(hash common.Hash, number uint64, hasState bool) bool {
p.lock.RLock()
defer p.lock.RUnlock()
head := p.headInfo.Number
var since, recent uint64
if hasState {
@ -543,6 +541,7 @@ func (p *serverPeer) HasBlock(hash common.Hash, number uint64, hasState bool) bo
recent = p.chainRecent
}
hasBlock := p.hasBlock
p.lock.RUnlock()
return head >= number && number >= since && (recent == 0 || number+recent+4 > head) && hasBlock != nil && hasBlock(hash, number, hasState)
}