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cmd, eth: added light client and light server modes

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This commit is contained in:
zsfelfoldi 2016-01-13 19:35:48 +01:00 committed by Felix Lange
parent 9f8d192991
commit 7db7109a5b
17 changed files with 298 additions and 94 deletions
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2
cmd/geth/chaincmd.go
View File

@ -180,7 +180,7 @@ func exportChain(ctx *cli.Context) error {
func removeDB(ctx *cli.Context) error {
stack := utils.MakeNode(ctx, clientIdentifier, gitCommit)
dbdir := stack.ResolvePath("chaindata")
dbdir := stack.ResolvePath(utils.ChainDbName(ctx))
if !common.FileExist(dbdir) {
fmt.Println(dbdir, "does not exist")
return nil

30
cmd/geth/main.go
View File

@ -41,6 +41,7 @@ import (
"github.com/ethereum/go-ethereum/logger/glog"
"github.com/ethereum/go-ethereum/metrics"
"github.com/ethereum/go-ethereum/node"
"github.com/ethereum/go-ethereum/p2p/discover"
"gopkg.in/urfave/cli.v1"
)
@ -118,6 +119,10 @@ participating.
utils.KeyStoreDirFlag,
utils.OlympicFlag,
utils.FastSyncFlag,
utils.LightModeFlag,
utils.NoDefSrvFlag,
utils.LightServFlag,
utils.LightPeersFlag,
utils.LightKDFFlag,
utils.CacheFlag,
utils.TrieCacheGenFlag,
@ -280,6 +285,31 @@ func startNode(ctx *cli.Context, stack *node.Node) {
// Start up the node itself
utils.StartNode(stack)
if ctx.GlobalBool(utils.LightModeFlag.Name) && !ctx.GlobalBool(utils.NoDefSrvFlag.Name) {
// add default light server; test phase only
addPeer := func(url string) {
node, err := discover.ParseNode(url)
if err == nil {
stack.Server().AddPeer(node)
}
}
if ctx.GlobalBool(utils.TestNetFlag.Name) {
// TestNet (John Gerryts @phonikg)
addPeer("enode://d72af45ba9b60851a8077a4eb07700484b585e5f2e55024e0c93b7ec7d114f2e3fa3c8f3a3358f89da00a609f5a062415deb857ada863b8cdad02b0b0bc90da3@50.112.52.169:30301")
} else {
if ctx.GlobalBool(utils.OpposeDAOFork.Name) {
// Classic (Azure)
addPeer("enode://fc3d7b57e5d317946bf421411632ec98d5ffcbf94548cd7bc10088e4fef176670f8ec70280d301a9d0b22fe498203f62b323da15b3acc18b02a1fee2a06b7d3f@40.118.3.223:30305")
} else {
// MainNet (Azure)
addPeer("enode://feaf206a308a669a789be45f4dadcb351246051727f12415ad69e44f8080daf0569c10fe1d9944d245dd1f3e1c89cedda8ce03d7e3d5ed8975a35cad4b4f7ec1@40.118.3.223:30303")
// MainNet (John Gerryts @phonikg)
addPeer("enode://02b80f0d47c7c157c069d0584067a284cdf188b9267666234b872e70d936a803ad20ea27f78ef1fd6425ae4b7108907e1875adbca96b038004114ac4d1e529a3@50.112.52.169:30300")
}
}
}
// Unlock any account specifically requested
accman := stack.AccountManager()
passwords := utils.MakePasswordList(ctx)

4
cmd/geth/usage.go
View File

@ -72,6 +72,10 @@ var AppHelpFlagGroups = []flagGroup{
utils.DevModeFlag,
utils.IdentityFlag,
utils.FastSyncFlag,
utils.LightModeFlag,
utils.NoDefSrvFlag,
utils.LightServFlag,
utils.LightPeersFlag,
utils.LightKDFFlag,
},
},

54
cmd/utils/flags.go
View File

@ -39,6 +39,8 @@ import (
"github.com/ethereum/go-ethereum/eth"
"github.com/ethereum/go-ethereum/ethdb"
"github.com/ethereum/go-ethereum/event"
"github.com/ethereum/go-ethereum/les"
"github.com/ethereum/go-ethereum/light"
"github.com/ethereum/go-ethereum/logger"
"github.com/ethereum/go-ethereum/logger/glog"
"github.com/ethereum/go-ethereum/metrics"
@ -145,6 +147,24 @@ var (
Name: "fast",
Usage: "Enable fast syncing through state downloads",
}
LightModeFlag = cli.BoolFlag{
Name: "light",
Usage: "Enable light client mode",
}
NoDefSrvFlag = cli.BoolFlag{
Name: "nodefsrv",
Usage: "Don't add default LES server (only for test version)",
}
LightServFlag = cli.IntFlag{
Name: "lightserv",
Usage: "Maximum percentage of time allowed for serving LES requests (0-90)",
Value: 0,
}
LightPeersFlag = cli.IntFlag{
Name: "lightpeers",
Usage: "Maximum number of LES client peers",
Value: 20,
}
LightKDFFlag = cli.BoolFlag{
Name: "lightkdf",
Usage: "Reduce key-derivation RAM & CPU usage at some expense of KDF strength",
@ -680,6 +700,11 @@ func RegisterEthService(ctx *cli.Context, stack *node.Node, extra []byte) {
Etherbase: MakeEtherbase(stack.AccountManager(), ctx),
ChainConfig: MakeChainConfig(ctx, stack),
FastSync: ctx.GlobalBool(FastSyncFlag.Name),
LightMode: ctx.GlobalBool(LightModeFlag.Name),
NoDefSrv: ctx.GlobalBool(NoDefSrvFlag.Name),
LightServ: ctx.GlobalInt(LightServFlag.Name),
LightPeers: ctx.GlobalInt(LightPeersFlag.Name),
MaxPeers: ctx.GlobalInt(MaxPeersFlag.Name),
DatabaseCache: ctx.GlobalInt(CacheFlag.Name),
DatabaseHandles: MakeDatabaseHandles(),
NetworkId: ctx.GlobalInt(NetworkIdFlag.Name),
@ -714,6 +739,7 @@ func RegisterEthService(ctx *cli.Context, stack *node.Node, extra []byte) {
}
ethConf.Genesis = core.TestNetGenesisBlock()
state.StartingNonce = 1048576 // (2**20)
light.StartingNonce = 1048576 // (2**20)
case ctx.GlobalBool(DevModeFlag.Name):
ethConf.Genesis = core.OlympicGenesisBlock()
@ -727,10 +753,23 @@ func RegisterEthService(ctx *cli.Context, stack *node.Node, extra []byte) {
state.MaxTrieCacheGen = uint16(gen)
}
if ethConf.LightMode {
if err := stack.Register(func(ctx *node.ServiceContext) (node.Service, error) {
return eth.New(ctx, ethConf)
return les.New(ctx, ethConf)
}); err != nil {
Fatalf("Failed to register the Ethereum service: %v", err)
Fatalf("Failed to register the Ethereum light node service: %v", err)
}
} else {
if err := stack.Register(func(ctx *node.ServiceContext) (node.Service, error) {
fullNode, err := eth.New(ctx, ethConf)
if fullNode != nil && ethConf.LightServ > 0 {
ls, _ := les.NewLesServer(fullNode, ethConf)
fullNode.AddLesServer(ls)
}
return fullNode, err
}); err != nil {
Fatalf("Failed to register the Ethereum full node service: %v", err)
}
}
}
@ -830,14 +869,23 @@ func MakeChainConfigFromDb(ctx *cli.Context, db ethdb.Database) *core.ChainConfi
return config
}
func ChainDbName(ctx *cli.Context) string {
if ctx.GlobalBool(LightModeFlag.Name) {
return "lightchaindata"
} else {
return "chaindata"
}
}
// MakeChainDatabase open an LevelDB using the flags passed to the client and will hard crash if it fails.
func MakeChainDatabase(ctx *cli.Context, stack *node.Node) ethdb.Database {
var (
cache = ctx.GlobalInt(CacheFlag.Name)
handles = MakeDatabaseHandles()
name = ChainDbName(ctx)
)
chainDb, err := stack.OpenDatabase("chaindata", cache, handles)
chainDb, err := stack.OpenDatabase(name, cache, handles)
if err != nil {
Fatalf("Could not open database: %v", err)
}

14
contracts/release/release.go
View File

@ -27,6 +27,8 @@ import (
"github.com/ethereum/go-ethereum/accounts/abi/bind"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/eth"
"github.com/ethereum/go-ethereum/internal/ethapi"
"github.com/ethereum/go-ethereum/les"
"github.com/ethereum/go-ethereum/logger"
"github.com/ethereum/go-ethereum/logger/glog"
"github.com/ethereum/go-ethereum/node"
@ -60,12 +62,20 @@ type ReleaseService struct {
// releases and notify the user of such.
func NewReleaseService(ctx *node.ServiceContext, config Config) (node.Service, error) {
// Retrieve the Ethereum service dependency to access the blockchain
var apiBackend ethapi.Backend
var ethereum *eth.Ethereum
if err := ctx.Service(&ethereum); err != nil {
if err := ctx.Service(&ethereum); err == nil {
apiBackend = ethereum.ApiBackend
} else {
var ethereum *les.LightEthereum
if err := ctx.Service(&ethereum); err == nil {
apiBackend = ethereum.ApiBackend
} else {
return nil, err
}
}
// Construct the release service
contract, err := NewReleaseOracle(config.Oracle, eth.NewContractBackend(ethereum))
contract, err := NewReleaseOracle(config.Oracle, eth.NewContractBackend(apiBackend))
if err != nil {
return nil, err
}

53
eth/backend.go
View File

@ -69,6 +69,11 @@ type Config struct {
NetworkId int // Network ID to use for selecting peers to connect to
Genesis string // Genesis JSON to seed the chain database with
FastSync bool // Enables the state download based fast synchronisation algorithm
LightMode bool // Running in light client mode
NoDefSrv bool // No default LES server
LightServ int // Maximum percentage of time allowed for serving LES requests
LightPeers int // Maximum number of LES client peers
MaxPeers int // Maximum number of global peers
SkipBcVersionCheck bool // e.g. blockchain export
DatabaseCache int
@ -100,6 +105,12 @@ type Config struct {
TestGenesisState ethdb.Database // Genesis state to seed the database with (testing only!)
}
type LesServer interface {
Start()
Stop()
Protocols() []p2p.Protocol
}
// Ethereum implements the Ethereum full node service.
type Ethereum struct {
chainConfig *core.ChainConfig
@ -111,6 +122,7 @@ type Ethereum struct {
txMu sync.Mutex
blockchain *core.BlockChain
protocolManager *ProtocolManager
lesServer LesServer
// DB interfaces
chainDb ethdb.Database // Block chain database
@ -119,7 +131,7 @@ type Ethereum struct {
httpclient *httpclient.HTTPClient
accountManager *accounts.Manager
apiBackend *EthApiBackend
ApiBackend *EthApiBackend
miner *miner.Miner
Mining bool
@ -135,10 +147,14 @@ type Ethereum struct {
netRPCService *ethapi.PublicNetAPI
}
func (s *Ethereum) AddLesServer(ls LesServer) {
s.lesServer = ls
}
// New creates a new Ethereum object (including the
// initialisation of the common Ethereum object)
func New(ctx *node.ServiceContext, config *Config) (*Ethereum, error) {
chainDb, err := createDB(ctx, config)
chainDb, err := CreateDB(ctx, config, "chaindata")
if err != nil {
return nil, err
}
@ -217,7 +233,18 @@ func New(ctx *node.ServiceContext, config *Config) (*Ethereum, error) {
newPool := core.NewTxPool(eth.chainConfig, eth.EventMux(), eth.blockchain.State, eth.blockchain.GasLimit)
eth.txPool = newPool
if eth.protocolManager, err = NewProtocolManager(eth.chainConfig, config.FastSync, config.NetworkId, eth.eventMux, eth.txPool, eth.pow, eth.blockchain, chainDb); err != nil {
maxPeers := config.MaxPeers
if config.LightServ > 0 {
// if we are running a light server, limit the number of ETH peers so that we reserve some space for incoming LES connections
// temporary solution until the new peer connectivity API is finished
halfPeers := maxPeers / 2
maxPeers -= config.LightPeers
if maxPeers < halfPeers {
maxPeers = halfPeers
}
}
if eth.protocolManager, err = NewProtocolManager(eth.chainConfig, config.FastSync, config.NetworkId, maxPeers, eth.eventMux, eth.txPool, eth.pow, eth.blockchain, chainDb); err != nil {
return nil, err
}
eth.miner = miner.New(eth, eth.chainConfig, eth.EventMux(), eth.pow)
@ -233,14 +260,14 @@ func New(ctx *node.ServiceContext, config *Config) (*Ethereum, error) {
GpobaseCorrectionFactor: config.GpobaseCorrectionFactor,
}
gpo := gasprice.NewGasPriceOracle(eth.blockchain, chainDb, eth.eventMux, gpoParams)
eth.apiBackend = &EthApiBackend{eth, gpo}
eth.ApiBackend = &EthApiBackend{eth, gpo}
return eth, nil
}
// createDB creates the chain database.
func createDB(ctx *node.ServiceContext, config *Config) (ethdb.Database, error) {
db, err := ctx.OpenDatabase("chaindata", config.DatabaseCache, config.DatabaseHandles)
// CreateDB creates the chain database.
func CreateDB(ctx *node.ServiceContext, config *Config, name string) (ethdb.Database, error) {
db, err := ctx.OpenDatabase(name, config.DatabaseCache, config.DatabaseHandles)
if db, ok := db.(*ethdb.LDBDatabase); ok {
db.Meter("eth/db/chaindata/")
}
@ -288,7 +315,7 @@ func CreatePoW(config *Config) (*ethash.Ethash, error) {
// APIs returns the collection of RPC services the ethereum package offers.
// NOTE, some of these services probably need to be moved to somewhere else.
func (s *Ethereum) APIs() []rpc.API {
return append(ethapi.GetAPIs(s.apiBackend, s.solcPath), []rpc.API{
return append(ethapi.GetAPIs(s.ApiBackend, s.solcPath), []rpc.API{
{
Namespace: "eth",
Version: "1.0",
@ -391,7 +418,11 @@ func (s *Ethereum) Downloader() *downloader.Downloader { return s.protocolManage
// Protocols implements node.Service, returning all the currently configured
// network protocols to start.
func (s *Ethereum) Protocols() []p2p.Protocol {
if s.lesServer == nil {
return s.protocolManager.SubProtocols
} else {
return append(s.protocolManager.SubProtocols, s.lesServer.Protocols()...)
}
}
// Start implements node.Service, starting all internal goroutines needed by the
@ -402,6 +433,9 @@ func (s *Ethereum) Start(srvr *p2p.Server) error {
s.StartAutoDAG()
}
s.protocolManager.Start()
if s.lesServer != nil {
s.lesServer.Start()
}
return nil
}
@ -413,6 +447,9 @@ func (s *Ethereum) Stop() error {
}
s.blockchain.Stop()
s.protocolManager.Stop()
if s.lesServer != nil {
s.lesServer.Stop()
}
s.txPool.Stop()
s.miner.Stop()
s.eventMux.Stop()

8
eth/bind.go
View File

@ -43,11 +43,11 @@ type ContractBackend struct {
// NewContractBackend creates a new native contract backend using an existing
// Etheruem object.
func NewContractBackend(eth *Ethereum) *ContractBackend {
func NewContractBackend(apiBackend ethapi.Backend) *ContractBackend {
return &ContractBackend{
eapi: ethapi.NewPublicEthereumAPI(eth.apiBackend),
bcapi: ethapi.NewPublicBlockChainAPI(eth.apiBackend),
txapi: ethapi.NewPublicTransactionPoolAPI(eth.apiBackend),
eapi: ethapi.NewPublicEthereumAPI(apiBackend),
bcapi: ethapi.NewPublicBlockChainAPI(apiBackend),
txapi: ethapi.NewPublicTransactionPoolAPI(apiBackend),
}
}

23
eth/downloader/downloader.go
View File

@ -164,13 +164,13 @@ type Downloader struct {
}
// New creates a new downloader to fetch hashes and blocks from remote peers.
func New(stateDb ethdb.Database, mux *event.TypeMux, hasHeader headerCheckFn, hasBlockAndState blockAndStateCheckFn,
func New(mode SyncMode, stateDb ethdb.Database, mux *event.TypeMux, hasHeader headerCheckFn, hasBlockAndState blockAndStateCheckFn,
getHeader headerRetrievalFn, getBlock blockRetrievalFn, headHeader headHeaderRetrievalFn, headBlock headBlockRetrievalFn,
headFastBlock headFastBlockRetrievalFn, commitHeadBlock headBlockCommitterFn, getTd tdRetrievalFn, insertHeaders headerChainInsertFn,
insertBlocks blockChainInsertFn, insertReceipts receiptChainInsertFn, rollback chainRollbackFn, dropPeer peerDropFn) *Downloader {
dl := &Downloader{
mode: FullSync,
mode: mode,
mux: mux,
queue: newQueue(stateDb),
peers: newPeerSet(),
@ -1179,10 +1179,23 @@ func (d *Downloader) processHeaders(origin uint64, td *big.Int) error {
for i, header := range rollback {
hashes[i] = header.Hash()
}
lastHeader, lastFastBlock, lastBlock := d.headHeader().Number, d.headFastBlock().Number(), d.headBlock().Number()
lastHeader, lastFastBlock, lastBlock := d.headHeader().Number, common.Big0, common.Big0
if d.headFastBlock != nil {
lastFastBlock = d.headFastBlock().Number()
}
if d.headBlock != nil {
lastBlock = d.headBlock().Number()
}
d.rollback(hashes)
curFastBlock, curBlock := common.Big0, common.Big0
if d.headFastBlock != nil {
curFastBlock = d.headFastBlock().Number()
}
if d.headBlock != nil {
curBlock = d.headBlock().Number()
}
glog.V(logger.Warn).Infof("Rolled back %d headers (LH: %d->%d, FB: %d->%d, LB: %d->%d)",
len(hashes), lastHeader, d.headHeader().Number, lastFastBlock, d.headFastBlock().Number(), lastBlock, d.headBlock().Number())
len(hashes), lastHeader, d.headHeader().Number, lastFastBlock, curFastBlock, lastBlock, curBlock)
// If we're already past the pivot point, this could be an attack, thread carefully
if rollback[len(rollback)-1].Number.Uint64() > pivot {
@ -1229,9 +1242,11 @@ func (d *Downloader) processHeaders(origin uint64, td *big.Int) error {
// L: Sync begins, and finds common ancestor at 11
// L: Request new headers up from 11 (R's TD was higher, it must have something)
// R: Nothing to give
if d.mode != LightSync {
if !gotHeaders && td.Cmp(d.getTd(d.headBlock().Hash())) > 0 {
return errStallingPeer
}
}
// If fast or light syncing, ensure promised headers are indeed delivered. This is
// needed to detect scenarios where an attacker feeds a bad pivot and then bails out
// of delivering the post-pivot blocks that would flag the invalid content.

2
eth/downloader/downloader_test.go
View File

@ -96,7 +96,7 @@ func newTester() *downloadTester {
tester.stateDb, _ = ethdb.NewMemDatabase()
tester.stateDb.Put(genesis.Root().Bytes(), []byte{0x00})
tester.downloader = New(tester.stateDb, new(event.TypeMux), tester.hasHeader, tester.hasBlock, tester.getHeader,
tester.downloader = New(FullSync, tester.stateDb, new(event.TypeMux), tester.hasHeader, tester.hasBlock, tester.getHeader,
tester.getBlock, tester.headHeader, tester.headBlock, tester.headFastBlock, tester.commitHeadBlock, tester.getTd,
tester.insertHeaders, tester.insertBlocks, tester.insertReceipts, tester.rollback, tester.dropPeer)

18
eth/filters/api.go
View File

@ -52,6 +52,8 @@ type filter struct {
// PublicFilterAPI offers support to create and manage filters. This will allow external clients to retrieve various
// information related to the Ethereum protocol such als blocks, transactions and logs.
type PublicFilterAPI struct {
backend Backend
useMipMap bool
mux *event.TypeMux
quit chan struct{}
chainDb ethdb.Database
@ -316,7 +318,7 @@ func (api *PublicFilterAPI) NewFilter(crit FilterCriteria) rpc.ID {
// GetLogs returns logs matching the given argument that are stored within the state.
//
// https://github.com/ethereum/wiki/wiki/JSON-RPC#eth_getlogs
func (api *PublicFilterAPI) GetLogs(crit FilterCriteria) []Log {
func (api *PublicFilterAPI) GetLogs(ctx context.Context, crit FilterCriteria) ([]Log, error) {
if crit.FromBlock == nil {
crit.FromBlock = big.NewInt(rpc.LatestBlockNumber.Int64())
}
@ -324,13 +326,14 @@ func (api *PublicFilterAPI) GetLogs(crit FilterCriteria) []Log {
crit.ToBlock = big.NewInt(rpc.LatestBlockNumber.Int64())
}
filter := New(api.chainDb)
filter := New(api.backend, api.useMipMap)
filter.SetBeginBlock(crit.FromBlock.Int64())
filter.SetEndBlock(crit.ToBlock.Int64())
filter.SetAddresses(crit.Addresses)
filter.SetTopics(crit.Topics)
return returnLogs(filter.Find())
logs, err := filter.Find(ctx)
return returnLogs(logs), err
}
// UninstallFilter removes the filter with the given filter id.
@ -354,22 +357,23 @@ func (api *PublicFilterAPI) UninstallFilter(id rpc.ID) bool {
// If the filter could not be found an empty array of logs is returned.
//
// https://github.com/ethereum/wiki/wiki/JSON-RPC#eth_getfilterlogs
func (api *PublicFilterAPI) GetFilterLogs(id rpc.ID) []Log {
func (api *PublicFilterAPI) GetFilterLogs(ctx context.Context, id rpc.ID) ([]Log, error) {
api.filtersMu.Lock()
f, found := api.filters[id]
api.filtersMu.Unlock()
if !found || f.typ != LogsSubscription {
return []Log{}
return []Log{}, nil
}
filter := New(api.chainDb)
filter := New(api.backend, api.useMipMap)
filter.SetBeginBlock(f.crit.FromBlock.Int64())
filter.SetEndBlock(f.crit.ToBlock.Int64())
filter.SetAddresses(f.crit.Addresses)
filter.SetTopics(f.crit.Topics)
return returnLogs(filter.Find())
logs, err := filter.Find(ctx)
return returnLogs(logs), err
}
// GetFilterChanges returns the logs for the filter with the given id since

77
eth/filters/filter.go
View File

@ -24,10 +24,23 @@ import (
"github.com/ethereum/go-ethereum/core"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/ethdb"
"github.com/ethereum/go-ethereum/event"
"github.com/ethereum/go-ethereum/rpc"
"golang.org/x/net/context"
)
type Backend interface {
ChainDb() ethdb.Database
EventMux() *event.TypeMux
HeaderByNumber(ctx context.Context, blockNr rpc.BlockNumber) (*types.Header, error)
GetReceipts(ctx context.Context, blockHash common.Hash) (types.Receipts, error)
}
// Filter can be used to retrieve and filter logs
type Filter struct {
backend Backend
useMipMap bool
created time.Time
db ethdb.Database
@ -38,8 +51,12 @@ type Filter struct {
// New creates a new filter which uses a bloom filter on blocks to figure out whether
// a particular block is interesting or not.
func New(db ethdb.Database) *Filter {
return &Filter{db: db}
func New(backend Backend, useMipMap bool) *Filter {
return &Filter{
backend: backend,
useMipMap: useMipMap,
db: backend.ChainDb(),
}
}
// SetBeginBlock sets the earliest block for filtering.
@ -66,30 +83,29 @@ func (f *Filter) SetTopics(topics [][]common.Hash) {
}
// Run filters logs with the current parameters set
func (f *Filter) Find() []Log {
latestHash := core.GetHeadBlockHash(f.db)
latestBlock := core.GetBlock(f.db, latestHash, core.GetBlockNumber(f.db, latestHash))
if latestBlock == nil {
return []Log{}
func (f *Filter) Find(ctx context.Context) ([]Log, error) {
head, _ := f.backend.HeaderByNumber(ctx, rpc.LatestBlockNumber)
if head == nil {
return nil, nil
}
headBlockNumber := head.Number.Uint64()
var beginBlockNo uint64 = uint64(f.begin)
if f.begin == -1 {
beginBlockNo = latestBlock.NumberU64()
beginBlockNo = headBlockNumber
}
endBlockNo := uint64(f.end)
var endBlockNo uint64 = uint64(f.end)
if f.end == -1 {
endBlockNo = latestBlock.NumberU64()
endBlockNo = headBlockNumber
}
// if no addresses are present we can't make use of fast search which
// uses the mipmap bloom filters to check for fast inclusion and uses
// higher range probability in order to ensure at least a false positive
if len(f.addresses) == 0 {
return f.getLogs(beginBlockNo, endBlockNo)
if !f.useMipMap || len(f.addresses) == 0 {
return f.getLogs(ctx, beginBlockNo, endBlockNo)
}
return f.mipFind(beginBlockNo, endBlockNo, 0)
return f.mipFind(beginBlockNo, endBlockNo, 0), nil
}
func (f *Filter) mipFind(start, end uint64, depth int) (logs []Log) {
@ -107,7 +123,8 @@ func (f *Filter) mipFind(start, end uint64, depth int) (logs []Log) {
start := uint64(math.Max(float64(num), float64(start)))
end := uint64(math.Min(float64(num+level-1), float64(end)))
if depth+1 == len(core.MIPMapLevels) {
logs = append(logs, f.getLogs(start, end)...)
l, _ := f.getLogs(context.Background(), start, end)
logs = append(logs, l...)
} else {
logs = append(logs, f.mipFind(start, end, depth+1)...)
}
@ -122,28 +139,22 @@ func (f *Filter) mipFind(start, end uint64, depth int) (logs []Log) {
return logs
}
func (f *Filter) getLogs(start, end uint64) (logs []Log) {
var block *types.Block
func (f *Filter) getLogs(ctx context.Context, start, end uint64) (logs []Log, err error) {
for i := start; i <= end; i++ {
hash := core.GetCanonicalHash(f.db, i)
if hash != (common.Hash{}) {
block = core.GetBlock(f.db, hash, i)
} else { // block not found
return logs
}
if block == nil { // block not found/written
return logs
header, err := f.backend.HeaderByNumber(ctx, rpc.BlockNumber(i))
if header == nil || err != nil {
return logs, err
}
// Use bloom filtering to see if this block is interesting given the
// current parameters
if f.bloomFilter(block) {
if f.bloomFilter(header.Bloom) {
// Get the logs of the block
var (
receipts = core.GetBlockReceipts(f.db, block.Hash(), i)
unfiltered []Log
)
receipts, err := f.backend.GetReceipts(ctx, header.Hash())
if err != nil {
return nil, err
}
var unfiltered []Log
for _, receipt := range receipts {
rl := make([]Log, len(receipt.Logs))
for i, l := range receipt.Logs {
@ -155,7 +166,7 @@ func (f *Filter) getLogs(start, end uint64) (logs []Log) {
}
}
return logs
return logs, nil
}
func includes(addresses []common.Address, a common.Address) bool {
@ -229,7 +240,7 @@ func bloomFilter(bloom types.Bloom, addresses []common.Address, topics [][]commo
for _, sub := range topics {
var included bool
for _, topic := range sub {
if (topic == common.Hash{}) || types.BloomLookup(block.Bloom(), topic) {
if (topic == common.Hash{}) || types.BloomLookup(bloom, topic) {
included = true
break
}

33
eth/filters/filter_system_test.go
View File

@ -22,6 +22,8 @@ import (
"testing"
"time"
"golang.org/x/net/context"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core"
"github.com/ethereum/go-ethereum/core/types"
@ -38,6 +40,37 @@ var (
api = NewPublicFilterAPI(backend, false)
)
type testBackend struct {
mux *event.TypeMux
db ethdb.Database
}
func (b *testBackend) ChainDb() ethdb.Database {
return b.db
}
func (b *testBackend) EventMux() *event.TypeMux {
return b.mux
}
func (b *testBackend) HeaderByNumber(ctx context.Context, blockNr rpc.BlockNumber) (*types.Header, error) {
var hash common.Hash
var num uint64
if blockNr == rpc.LatestBlockNumber {
hash = core.GetHeadBlockHash(b.db)
num = core.GetBlockNumber(b.db, hash)
} else {
num = uint64(blockNr)
hash = core.GetCanonicalHash(b.db, num)
}
return core.GetHeader(b.db, hash, num), nil
}
func (b *testBackend) GetReceipts(ctx context.Context, blockHash common.Hash) (types.Receipts, error) {
num := core.GetBlockNumber(b.db, blockHash)
return core.GetBlockReceipts(b.db, blockHash, num), nil
}
// TestBlockSubscription tests if a block subscription returns block hashes for posted chain events.
// It creates multiple subscriptions:
// - one at the start and should receive all posted chain events and a second (blockHashes)

36
eth/filters/filter_test.go
View File

@ -22,6 +22,8 @@ import (
"os"
"testing"
"golang.org/x/net/context"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core"
"github.com/ethereum/go-ethereum/core/types"
@ -48,6 +50,7 @@ func BenchmarkMipmaps(b *testing.B) {
var (
db, _ = ethdb.NewLDBDatabase(dir, 0, 0)
backend = &testBackend{mux, db}
key1, _ = crypto.HexToECDSA("b71c71a67e1177ad4e901695e1b4b9ee17ae16c6668d313eac2f96dbcda3f291")
addr1 = crypto.PubkeyToAddress(key1.PublicKey)
addr2 = common.BytesToAddress([]byte("jeff"))
@ -100,13 +103,13 @@ func BenchmarkMipmaps(b *testing.B) {
}
b.ResetTimer()
filter := New(db)
filter := New(backend, true)
filter.SetAddresses([]common.Address{addr1, addr2, addr3, addr4})
filter.SetBeginBlock(0)
filter.SetEndBlock(-1)
for i := 0; i < b.N; i++ {
logs := filter.Find()
logs, _ := filter.Find(context.Background())
if len(logs) != 4 {
b.Fatal("expected 4 log, got", len(logs))
}
@ -122,6 +125,7 @@ func TestFilters(t *testing.T) {
var (
db, _ = ethdb.NewLDBDatabase(dir, 0, 0)
backend = &testBackend{mux, db}
key1, _ = crypto.HexToECDSA("b71c71a67e1177ad4e901695e1b4b9ee17ae16c6668d313eac2f96dbcda3f291")
addr = crypto.PubkeyToAddress(key1.PublicKey)
@ -201,23 +205,23 @@ func TestFilters(t *testing.T) {
}
}
filter := New(db)
filter := New(backend, true)
filter.SetAddresses([]common.Address{addr})
filter.SetTopics([][]common.Hash{[]common.Hash{hash1, hash2, hash3, hash4}})
filter.SetBeginBlock(0)
filter.SetEndBlock(-1)
logs := filter.Find()
logs, _ := filter.Find(context.Background())
if len(logs) != 4 {
t.Error("expected 4 log, got", len(logs))
}
filter = New(db)
filter = New(backend, true)
filter.SetAddresses([]common.Address{addr})
filter.SetTopics([][]common.Hash{[]common.Hash{hash3}})
filter.SetBeginBlock(900)
filter.SetEndBlock(999)
logs = filter.Find()
logs, _ = filter.Find(context.Background())
if len(logs) != 1 {
t.Error("expected 1 log, got", len(logs))
}
@ -225,12 +229,12 @@ func TestFilters(t *testing.T) {
t.Errorf("expected log[0].Topics[0] to be %x, got %x", hash3, logs[0].Topics[0])
}
filter = New(db)
filter = New(backend, true)
filter.SetAddresses([]common.Address{addr})
filter.SetTopics([][]common.Hash{[]common.Hash{hash3}})
filter.SetBeginBlock(990)
filter.SetEndBlock(-1)
logs = filter.Find()
logs, _ = filter.Find(context.Background())
if len(logs) != 1 {
t.Error("expected 1 log, got", len(logs))
}
@ -238,44 +242,44 @@ func TestFilters(t *testing.T) {
t.Errorf("expected log[0].Topics[0] to be %x, got %x", hash3, logs[0].Topics[0])
}
filter = New(db)
filter = New(backend, true)
filter.SetTopics([][]common.Hash{[]common.Hash{hash1, hash2}})
filter.SetBeginBlock(1)
filter.SetEndBlock(10)
logs = filter.Find()
logs, _ = filter.Find(context.Background())
if len(logs) != 2 {
t.Error("expected 2 log, got", len(logs))
}
failHash := common.BytesToHash([]byte("fail"))
filter = New(db)
filter = New(backend, true)
filter.SetTopics([][]common.Hash{[]common.Hash{failHash}})
filter.SetBeginBlock(0)
filter.SetEndBlock(-1)
logs = filter.Find()
logs, _ = filter.Find(context.Background())
if len(logs) != 0 {
t.Error("expected 0 log, got", len(logs))
}
failAddr := common.BytesToAddress([]byte("failmenow"))
filter = New(db)
filter = New(backend, true)
filter.SetAddresses([]common.Address{failAddr})
filter.SetBeginBlock(0)
filter.SetEndBlock(-1)
logs = filter.Find()
logs, _ = filter.Find(context.Background())
if len(logs) != 0 {
t.Error("expected 0 log, got", len(logs))
}
filter = New(db)
filter = New(backend, true)
filter.SetTopics([][]common.Hash{[]common.Hash{failHash}, []common.Hash{hash1}})
filter.SetBeginBlock(0)
filter.SetEndBlock(-1)
logs = filter.Find()
logs, _ = filter.Find(context.Background())
if len(logs) != 0 {
t.Error("expected 0 log, got", len(logs))
}

10
eth/handler.go
View File

@ -68,6 +68,7 @@ type ProtocolManager struct {
blockchain *core.BlockChain
chaindb ethdb.Database
chainconfig *core.ChainConfig
maxPeers int
downloader *downloader.Downloader
fetcher *fetcher.Fetcher
@ -94,7 +95,7 @@ type ProtocolManager struct {
// NewProtocolManager returns a new ethereum sub protocol manager. The Ethereum sub protocol manages peers capable
// with the ethereum network.
func NewProtocolManager(config *core.ChainConfig, fastSync bool, networkId int, mux *event.TypeMux, txpool txPool, pow pow.PoW, blockchain *core.BlockChain, chaindb ethdb.Database) (*ProtocolManager, error) {
func NewProtocolManager(config *core.ChainConfig, fastSync bool, networkId int, maxPeers int, mux *event.TypeMux, txpool txPool, pow pow.PoW, blockchain *core.BlockChain, chaindb ethdb.Database) (*ProtocolManager, error) {
// Create the protocol manager with the base fields
manager := &ProtocolManager{
networkId: networkId,
@ -103,6 +104,7 @@ func NewProtocolManager(config *core.ChainConfig, fastSync bool, networkId int,
blockchain: blockchain,
chaindb: chaindb,
chainconfig: config,
maxPeers: maxPeers,
peers: newPeerSet(),
newPeerCh: make(chan *peer),
noMorePeers: make(chan struct{}),
@ -156,7 +158,7 @@ func NewProtocolManager(config *core.ChainConfig, fastSync bool, networkId int,
return nil, errIncompatibleConfig
}
// Construct the different synchronisation mechanisms
manager.downloader = downloader.New(chaindb, manager.eventMux, blockchain.HasHeader, blockchain.HasBlockAndState, blockchain.GetHeaderByHash,
manager.downloader = downloader.New(downloader.FullSync, chaindb, manager.eventMux, blockchain.HasHeader, blockchain.HasBlockAndState, blockchain.GetHeaderByHash,
blockchain.GetBlockByHash, blockchain.CurrentHeader, blockchain.CurrentBlock, blockchain.CurrentFastBlock, blockchain.FastSyncCommitHead,
blockchain.GetTdByHash, blockchain.InsertHeaderChain, manager.insertChain, blockchain.InsertReceiptChain, blockchain.Rollback,
manager.removePeer)
@ -253,6 +255,10 @@ func (pm *ProtocolManager) newPeer(pv int, p *p2p.Peer, rw p2p.MsgReadWriter) *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 {
if pm.peers.Len() >= pm.maxPeers {
return p2p.DiscTooManyPeers
}
glog.V(logger.Debug).Infof("%v: peer connected [%s]", p, p.Name())
// Execute the Ethereum handshake

2
eth/handler_test.go
View File

@ -469,7 +469,7 @@ func testDAOChallenge(t *testing.T, localForked, remoteForked bool, timeout bool
config = &core.ChainConfig{DAOForkBlock: big.NewInt(1), DAOForkSupport: localForked}
blockchain, _ = core.NewBlockChain(db, config, pow, evmux)
)
pm, err := NewProtocolManager(config, false, NetworkId, evmux, new(testTxPool), pow, blockchain, db)
pm, err := NewProtocolManager(config, false, NetworkId, 1000, evmux, new(testTxPool), pow, blockchain, db)
if err != nil {
t.Fatalf("failed to start test protocol manager: %v", err)
}

2
eth/helper_test.go
View File

@ -62,7 +62,7 @@ func newTestProtocolManager(fastSync bool, blocks int, generator func(int, *core
panic(err)
}
pm, err := NewProtocolManager(chainConfig, fastSync, NetworkId, evmux, &testTxPool{added: newtx}, pow, blockchain, db)
pm, err := NewProtocolManager(chainConfig, fastSync, NetworkId, 1000, evmux, &testTxPool{added: newtx}, pow, blockchain, db)
if err != nil {
return nil, err
}

2
ethdb/database.go
View File

@ -41,12 +41,14 @@ var OpenFileLimit = 64
// various system databases.
var cacheRatio = map[string]float64{
"chaindata": 1.0,
"lightchaindata": 1.0,
}
// handleRatio specifies how the total allotted file descriptors is distributed
// between the various system databases.
var handleRatio = map[string]float64{
"chaindata": 1.0,
"lightchaindata": 1.0,
}
type LDBDatabase struct {