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core, light: send chain events using event.Feed (#14865)

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This commit is contained in:
Miya Chen 2017-08-18 18:58:36 +08:00 committed by Felix Lange
parent a4da8416ee
commit bf1e263128
37 changed files with 786 additions and 372 deletions
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3
accounts/abi/bind/backends/simulated.go
View File

@ -33,7 +33,6 @@ import (
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/core/vm"
"github.com/ethereum/go-ethereum/ethdb"
"github.com/ethereum/go-ethereum/event"
"github.com/ethereum/go-ethereum/params"
)
@ -61,7 +60,7 @@ func NewSimulatedBackend(alloc core.GenesisAlloc) *SimulatedBackend {
database, _ := ethdb.NewMemDatabase()
genesis := core.Genesis{Config: params.AllProtocolChanges, Alloc: alloc}
genesis.MustCommit(database)
blockchain, _ := core.NewBlockChain(database, genesis.Config, ethash.NewFaker(), new(event.TypeMux), vm.Config{})
blockchain, _ := core.NewBlockChain(database, genesis.Config, ethash.NewFaker(), vm.Config{})
backend := &SimulatedBackend{database: database, blockchain: blockchain, config: genesis.Config}
backend.rollback()
return backend

3
cmd/utils/flags.go
View File

@ -41,7 +41,6 @@ import (
"github.com/ethereum/go-ethereum/eth/gasprice"
"github.com/ethereum/go-ethereum/ethdb"
"github.com/ethereum/go-ethereum/ethstats"
"github.com/ethereum/go-ethereum/event"
"github.com/ethereum/go-ethereum/les"
"github.com/ethereum/go-ethereum/log"
"github.com/ethereum/go-ethereum/metrics"
@ -1103,7 +1102,7 @@ func MakeChain(ctx *cli.Context, stack *node.Node) (chain *core.BlockChain, chai
Fatalf("%v", err)
}
vmcfg := vm.Config{EnablePreimageRecording: ctx.GlobalBool(VMEnableDebugFlag.Name)}
chain, err = core.NewBlockChain(chainDb, config, engine, new(event.TypeMux), vmcfg)
chain, err = core.NewBlockChain(chainDb, config, engine, vmcfg)
if err != nil {
Fatalf("Can't create BlockChain: %v", err)
}

6
core/bench_test.go
View File

@ -30,7 +30,6 @@ import (
"github.com/ethereum/go-ethereum/core/vm"
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/ethdb"
"github.com/ethereum/go-ethereum/event"
"github.com/ethereum/go-ethereum/params"
)
@ -175,8 +174,7 @@ func benchInsertChain(b *testing.B, disk bool, gen func(int, *BlockGen)) {
// Time the insertion of the new chain.
// State and blocks are stored in the same DB.
evmux := new(event.TypeMux)
chainman, _ := NewBlockChain(db, gspec.Config, ethash.NewFaker(), evmux, vm.Config{})
chainman, _ := NewBlockChain(db, gspec.Config, ethash.NewFaker(), vm.Config{})
defer chainman.Stop()
b.ReportAllocs()
b.ResetTimer()
@ -286,7 +284,7 @@ func benchReadChain(b *testing.B, full bool, count uint64) {
if err != nil {
b.Fatalf("error opening database at %v: %v", dir, err)
}
chain, err := NewBlockChain(db, params.TestChainConfig, ethash.NewFaker(), new(event.TypeMux), vm.Config{})
chain, err := NewBlockChain(db, params.TestChainConfig, ethash.NewFaker(), vm.Config{})
if err != nil {
b.Fatalf("error creating chain: %v", err)
}

9
core/block_validator_test.go
View File

@ -25,7 +25,6 @@ import (
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/core/vm"
"github.com/ethereum/go-ethereum/ethdb"
"github.com/ethereum/go-ethereum/event"
"github.com/ethereum/go-ethereum/params"
)
@ -43,7 +42,7 @@ func TestHeaderVerification(t *testing.T) {
headers[i] = block.Header()
}
// Run the header checker for blocks one-by-one, checking for both valid and invalid nonces
chain, _ := NewBlockChain(testdb, params.TestChainConfig, ethash.NewFaker(), new(event.TypeMux), vm.Config{})
chain, _ := NewBlockChain(testdb, params.TestChainConfig, ethash.NewFaker(), vm.Config{})
defer chain.Stop()
for i := 0; i < len(blocks); i++ {
@ -107,11 +106,11 @@ func testHeaderConcurrentVerification(t *testing.T, threads int) {
var results <-chan error
if valid {
chain, _ := NewBlockChain(testdb, params.TestChainConfig, ethash.NewFaker(), new(event.TypeMux), vm.Config{})
chain, _ := NewBlockChain(testdb, params.TestChainConfig, ethash.NewFaker(), vm.Config{})
_, results = chain.engine.VerifyHeaders(chain, headers, seals)
chain.Stop()
} else {
chain, _ := NewBlockChain(testdb, params.TestChainConfig, ethash.NewFakeFailer(uint64(len(headers)-1)), new(event.TypeMux), vm.Config{})
chain, _ := NewBlockChain(testdb, params.TestChainConfig, ethash.NewFakeFailer(uint64(len(headers)-1)), vm.Config{})
_, results = chain.engine.VerifyHeaders(chain, headers, seals)
chain.Stop()
}
@ -174,7 +173,7 @@ func testHeaderConcurrentAbortion(t *testing.T, threads int) {
defer runtime.GOMAXPROCS(old)
// Start the verifications and immediately abort
chain, _ := NewBlockChain(testdb, params.TestChainConfig, ethash.NewFakeDelayer(time.Millisecond), new(event.TypeMux), vm.Config{})
chain, _ := NewBlockChain(testdb, params.TestChainConfig, ethash.NewFakeDelayer(time.Millisecond), vm.Config{})
defer chain.Stop()
abort, results := chain.engine.VerifyHeaders(chain, headers, seals)

92
core/blockchain.go
View File

@ -79,10 +79,16 @@ const (
type BlockChain struct {
config *params.ChainConfig // chain & network configuration
hc *HeaderChain
chainDb ethdb.Database
eventMux *event.TypeMux
genesisBlock *types.Block
hc *HeaderChain
chainDb ethdb.Database
rmTxFeed event.Feed
rmLogsFeed event.Feed
chainFeed event.Feed
chainSideFeed event.Feed
chainHeadFeed event.Feed
logsFeed event.Feed
scope event.SubscriptionScope
genesisBlock *types.Block
mu sync.RWMutex // global mutex for locking chain operations
chainmu sync.RWMutex // blockchain insertion lock
@ -115,7 +121,7 @@ type BlockChain struct {
// NewBlockChain returns a fully initialised block chain using information
// available in the database. It initialises the default Ethereum Validator and
// Processor.
func NewBlockChain(chainDb ethdb.Database, config *params.ChainConfig, engine consensus.Engine, mux *event.TypeMux, vmConfig vm.Config) (*BlockChain, error) {
func NewBlockChain(chainDb ethdb.Database, config *params.ChainConfig, engine consensus.Engine, vmConfig vm.Config) (*BlockChain, error) {
bodyCache, _ := lru.New(bodyCacheLimit)
bodyRLPCache, _ := lru.New(bodyCacheLimit)
blockCache, _ := lru.New(blockCacheLimit)
@ -126,7 +132,6 @@ func NewBlockChain(chainDb ethdb.Database, config *params.ChainConfig, engine co
config: config,
chainDb: chainDb,
stateCache: state.NewDatabase(chainDb),
eventMux: mux,
quit: make(chan struct{}),
bodyCache: bodyCache,
bodyRLPCache: bodyRLPCache,
@ -594,6 +599,8 @@ func (bc *BlockChain) Stop() {
if !atomic.CompareAndSwapInt32(&bc.running, 0, 1) {
return
}
// Unsubscribe all subscriptions registered from blockchain
bc.scope.Close()
close(bc.quit)
atomic.StoreInt32(&bc.procInterrupt, 1)
@ -1000,6 +1007,12 @@ func (bc *BlockChain) InsertChain(chain types.Blocks) (int, error) {
blockInsertTimer.UpdateSince(bstart)
events = append(events, ChainEvent{block, block.Hash(), logs})
// We need some control over the mining operation. Acquiring locks and waiting
// for the miner to create new block takes too long and in most cases isn't
// even necessary.
if bc.LastBlockHash() == block.Hash() {
events = append(events, ChainHeadEvent{block})
}
// Write the positional metadata for transaction and receipt lookups
if err := WriteTxLookupEntries(bc.chainDb, block); err != nil {
@ -1024,7 +1037,7 @@ func (bc *BlockChain) InsertChain(chain types.Blocks) (int, error) {
stats.usedGas += usedGas.Uint64()
stats.report(chain, i)
}
go bc.postChainEvents(events, coalescedLogs)
go bc.PostChainEvents(events, coalescedLogs)
return 0, nil
}
@ -1184,16 +1197,16 @@ func (bc *BlockChain) reorg(oldBlock, newBlock *types.Block) error {
// Must be posted in a goroutine because of the transaction pool trying
// to acquire the chain manager lock
if len(diff) > 0 {
go bc.eventMux.Post(RemovedTransactionEvent{diff})
go bc.rmTxFeed.Send(RemovedTransactionEvent{diff})
}
if len(deletedLogs) > 0 {
go bc.eventMux.Post(RemovedLogsEvent{deletedLogs})
go bc.rmLogsFeed.Send(RemovedLogsEvent{deletedLogs})
}
if len(oldChain) > 0 {
go func() {
for _, block := range oldChain {
bc.eventMux.Post(ChainSideEvent{Block: block})
bc.chainSideFeed.Send(ChainSideEvent{Block: block})
}
}()
}
@ -1201,22 +1214,25 @@ func (bc *BlockChain) reorg(oldBlock, newBlock *types.Block) error {
return nil
}
// postChainEvents iterates over the events generated by a chain insertion and
// posts them into the event mux.
func (bc *BlockChain) postChainEvents(events []interface{}, logs []*types.Log) {
// PostChainEvents iterates over the events generated by a chain insertion and
// posts them into the event feed.
// TODO: Should not expose PostChainEvents. The chain events should be posted in WriteBlock.
func (bc *BlockChain) PostChainEvents(events []interface{}, logs []*types.Log) {
// post event logs for further processing
bc.eventMux.Post(logs)
if logs != nil {
bc.logsFeed.Send(logs)
}
for _, event := range events {
if event, ok := event.(ChainEvent); ok {
// We need some control over the mining operation. Acquiring locks and waiting
// for the miner to create new block takes too long and in most cases isn't
// even necessary.
if bc.LastBlockHash() == event.Hash {
bc.eventMux.Post(ChainHeadEvent{event.Block})
}
switch ev := event.(type) {
case ChainEvent:
bc.chainFeed.Send(ev)
case ChainHeadEvent:
bc.chainHeadFeed.Send(ev)
case ChainSideEvent:
bc.chainSideFeed.Send(ev)
}
// Fire the insertion events individually too
bc.eventMux.Post(event)
}
}
@ -1384,3 +1400,33 @@ func (bc *BlockChain) Config() *params.ChainConfig { return bc.config }
// Engine retrieves the blockchain's consensus engine.
func (bc *BlockChain) Engine() consensus.Engine { return bc.engine }
// SubscribeRemovedTxEvent registers a subscription of RemovedTransactionEvent.
func (bc *BlockChain) SubscribeRemovedTxEvent(ch chan<- RemovedTransactionEvent) event.Subscription {
return bc.scope.Track(bc.rmTxFeed.Subscribe(ch))
}
// SubscribeRemovedLogsEvent registers a subscription of RemovedLogsEvent.
func (bc *BlockChain) SubscribeRemovedLogsEvent(ch chan<- RemovedLogsEvent) event.Subscription {
return bc.scope.Track(bc.rmLogsFeed.Subscribe(ch))
}
// SubscribeChainEvent registers a subscription of ChainEvent.
func (bc *BlockChain) SubscribeChainEvent(ch chan<- ChainEvent) event.Subscription {
return bc.scope.Track(bc.chainFeed.Subscribe(ch))
}
// SubscribeChainHeadEvent registers a subscription of ChainHeadEvent.
func (bc *BlockChain) SubscribeChainHeadEvent(ch chan<- ChainHeadEvent) event.Subscription {
return bc.scope.Track(bc.chainHeadFeed.Subscribe(ch))
}
// SubscribeChainSideEvent registers a subscription of ChainSideEvent.
func (bc *BlockChain) SubscribeChainSideEvent(ch chan<- ChainSideEvent) event.Subscription {
return bc.scope.Track(bc.chainSideFeed.Subscribe(ch))
}
// SubscribeLogsEvent registers a subscription of []*types.Log.
func (bc *BlockChain) SubscribeLogsEvent(ch chan<- []*types.Log) event.Subscription {
return bc.scope.Track(bc.logsFeed.Subscribe(ch))
}

53
core/blockchain_test.go
View File

@ -31,7 +31,6 @@ import (
"github.com/ethereum/go-ethereum/core/vm"
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/ethdb"
"github.com/ethereum/go-ethereum/event"
"github.com/ethereum/go-ethereum/params"
)
@ -47,7 +46,7 @@ func newTestBlockChain(fake bool) *BlockChain {
if !fake {
engine = ethash.NewTester()
}
blockchain, err := NewBlockChain(db, gspec.Config, engine, new(event.TypeMux), vm.Config{})
blockchain, err := NewBlockChain(db, gspec.Config, engine, vm.Config{})
if err != nil {
panic(err)
}
@ -497,7 +496,7 @@ func testReorgBadHashes(t *testing.T, full bool) {
}
// Create a new BlockChain and check that it rolled back the state.
ncm, err := NewBlockChain(bc.chainDb, bc.config, ethash.NewFaker(), new(event.TypeMux), vm.Config{})
ncm, err := NewBlockChain(bc.chainDb, bc.config, ethash.NewFaker(), vm.Config{})
if err != nil {
t.Fatalf("failed to create new chain manager: %v", err)
}
@ -610,7 +609,7 @@ func TestFastVsFullChains(t *testing.T) {
// Import the chain as an archive node for the comparison baseline
archiveDb, _ := ethdb.NewMemDatabase()
gspec.MustCommit(archiveDb)
archive, _ := NewBlockChain(archiveDb, gspec.Config, ethash.NewFaker(), new(event.TypeMux), vm.Config{})
archive, _ := NewBlockChain(archiveDb, gspec.Config, ethash.NewFaker(), vm.Config{})
defer archive.Stop()
if n, err := archive.InsertChain(blocks); err != nil {
@ -619,7 +618,7 @@ func TestFastVsFullChains(t *testing.T) {
// Fast import the chain as a non-archive node to test
fastDb, _ := ethdb.NewMemDatabase()
gspec.MustCommit(fastDb)
fast, _ := NewBlockChain(fastDb, gspec.Config, ethash.NewFaker(), new(event.TypeMux), vm.Config{})
fast, _ := NewBlockChain(fastDb, gspec.Config, ethash.NewFaker(), vm.Config{})
defer fast.Stop()
headers := make([]*types.Header, len(blocks))
@ -697,7 +696,7 @@ func TestLightVsFastVsFullChainHeads(t *testing.T) {
archiveDb, _ := ethdb.NewMemDatabase()
gspec.MustCommit(archiveDb)
archive, _ := NewBlockChain(archiveDb, gspec.Config, ethash.NewFaker(), new(event.TypeMux), vm.Config{})
archive, _ := NewBlockChain(archiveDb, gspec.Config, ethash.NewFaker(), vm.Config{})
if n, err := archive.InsertChain(blocks); err != nil {
t.Fatalf("failed to process block %d: %v", n, err)
}
@ -710,7 +709,7 @@ func TestLightVsFastVsFullChainHeads(t *testing.T) {
// Import the chain as a non-archive node and ensure all pointers are updated
fastDb, _ := ethdb.NewMemDatabase()
gspec.MustCommit(fastDb)
fast, _ := NewBlockChain(fastDb, gspec.Config, ethash.NewFaker(), new(event.TypeMux), vm.Config{})
fast, _ := NewBlockChain(fastDb, gspec.Config, ethash.NewFaker(), vm.Config{})
defer fast.Stop()
headers := make([]*types.Header, len(blocks))
@ -731,7 +730,7 @@ func TestLightVsFastVsFullChainHeads(t *testing.T) {
lightDb, _ := ethdb.NewMemDatabase()
gspec.MustCommit(lightDb)
light, _ := NewBlockChain(lightDb, gspec.Config, ethash.NewFaker(), new(event.TypeMux), vm.Config{})
light, _ := NewBlockChain(lightDb, gspec.Config, ethash.NewFaker(), vm.Config{})
if n, err := light.InsertHeaderChain(headers, 1); err != nil {
t.Fatalf("failed to insert header %d: %v", n, err)
}
@ -800,8 +799,7 @@ func TestChainTxReorgs(t *testing.T) {
}
})
// Import the chain. This runs all block validation rules.
evmux := &event.TypeMux{}
blockchain, _ := NewBlockChain(db, gspec.Config, ethash.NewFaker(), evmux, vm.Config{})
blockchain, _ := NewBlockChain(db, gspec.Config, ethash.NewFaker(), vm.Config{})
if i, err := blockchain.InsertChain(chain); err != nil {
t.Fatalf("failed to insert original chain[%d]: %v", i, err)
}
@ -872,11 +870,11 @@ func TestLogReorgs(t *testing.T) {
signer = types.NewEIP155Signer(gspec.Config.ChainId)
)
var evmux event.TypeMux
blockchain, _ := NewBlockChain(db, gspec.Config, ethash.NewFaker(), &evmux, vm.Config{})
blockchain, _ := NewBlockChain(db, gspec.Config, ethash.NewFaker(), vm.Config{})
defer blockchain.Stop()
subs := evmux.Subscribe(RemovedLogsEvent{})
rmLogsCh := make(chan RemovedLogsEvent)
blockchain.SubscribeRemovedLogsEvent(rmLogsCh)
chain, _ := GenerateChain(params.TestChainConfig, genesis, db, 2, func(i int, gen *BlockGen) {
if i == 1 {
tx, err := types.SignTx(types.NewContractCreation(gen.TxNonce(addr1), new(big.Int), big.NewInt(1000000), new(big.Int), code), signer, key1)
@ -895,9 +893,14 @@ func TestLogReorgs(t *testing.T) {
t.Fatalf("failed to insert forked chain: %v", err)
}
ev := <-subs.Chan()
if len(ev.Data.(RemovedLogsEvent).Logs) == 0 {
t.Error("expected logs")
timeout := time.NewTimer(1 * time.Second)
select {
case ev := <-rmLogsCh:
if len(ev.Logs) == 0 {
t.Error("expected logs")
}
case <-timeout.C:
t.Fatal("Timeout. There is no RemovedLogsEvent has been sent.")
}
}
@ -914,8 +917,7 @@ func TestReorgSideEvent(t *testing.T) {
signer = types.NewEIP155Signer(gspec.Config.ChainId)
)
evmux := &event.TypeMux{}
blockchain, _ := NewBlockChain(db, gspec.Config, ethash.NewFaker(), evmux, vm.Config{})
blockchain, _ := NewBlockChain(db, gspec.Config, ethash.NewFaker(), vm.Config{})
defer blockchain.Stop()
chain, _ := GenerateChain(gspec.Config, genesis, db, 3, func(i int, gen *BlockGen) {})
@ -933,7 +935,8 @@ func TestReorgSideEvent(t *testing.T) {
}
gen.AddTx(tx)
})
subs := evmux.Subscribe(ChainSideEvent{})
chainSideCh := make(chan ChainSideEvent)
blockchain.SubscribeChainSideEvent(chainSideCh)
if _, err := blockchain.InsertChain(replacementBlocks); err != nil {
t.Fatalf("failed to insert chain: %v", err)
}
@ -956,8 +959,8 @@ func TestReorgSideEvent(t *testing.T) {
done:
for {
select {
case ev := <-subs.Chan():
block := ev.Data.(ChainSideEvent).Block
case ev := <-chainSideCh:
block := ev.Block
if _, ok := expectedSideHashes[block.Hash()]; !ok {
t.Errorf("%d: didn't expect %x to be in side chain", i, block.Hash())
}
@ -977,7 +980,7 @@ done:
// make sure no more events are fired
select {
case e := <-subs.Chan():
case e := <-chainSideCh:
t.Errorf("unexpected event fired: %v", e)
case <-time.After(250 * time.Millisecond):
}
@ -1038,10 +1041,9 @@ func TestEIP155Transition(t *testing.T) {
Alloc: GenesisAlloc{address: {Balance: funds}, deleteAddr: {Balance: new(big.Int)}},
}
genesis = gspec.MustCommit(db)
mux event.TypeMux
)
blockchain, _ := NewBlockChain(db, gspec.Config, ethash.NewFaker(), &mux, vm.Config{})
blockchain, _ := NewBlockChain(db, gspec.Config, ethash.NewFaker(), vm.Config{})
defer blockchain.Stop()
blocks, _ := GenerateChain(gspec.Config, genesis, db, 4, func(i int, block *BlockGen) {
@ -1148,9 +1150,8 @@ func TestEIP161AccountRemoval(t *testing.T) {
Alloc: GenesisAlloc{address: {Balance: funds}},
}
genesis = gspec.MustCommit(db)
mux event.TypeMux
)
blockchain, _ := NewBlockChain(db, gspec.Config, ethash.NewFaker(), &mux, vm.Config{})
blockchain, _ := NewBlockChain(db, gspec.Config, ethash.NewFaker(), vm.Config{})
defer blockchain.Stop()
blocks, _ := GenerateChain(gspec.Config, genesis, db, 3, func(i int, block *BlockGen) {

3
core/chain_makers.go
View File

@ -27,7 +27,6 @@ import (
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/core/vm"
"github.com/ethereum/go-ethereum/ethdb"
"github.com/ethereum/go-ethereum/event"
"github.com/ethereum/go-ethereum/params"
)
@ -236,7 +235,7 @@ func newCanonical(n int, full bool) (ethdb.Database, *BlockChain, error) {
db, _ := ethdb.NewMemDatabase()
genesis := gspec.MustCommit(db)
blockchain, _ := NewBlockChain(db, params.AllProtocolChanges, ethash.NewFaker(), new(event.TypeMux), vm.Config{})
blockchain, _ := NewBlockChain(db, params.AllProtocolChanges, ethash.NewFaker(), vm.Config{})
// Create and inject the requested chain
if n == 0 {
return db, blockchain, nil

5
core/chain_makers_test.go
View File

@ -25,7 +25,6 @@ import (
"github.com/ethereum/go-ethereum/core/vm"
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/ethdb"
"github.com/ethereum/go-ethereum/event"
"github.com/ethereum/go-ethereum/params"
)
@ -80,9 +79,7 @@ func ExampleGenerateChain() {
})
// Import the chain. This runs all block validation rules.
evmux := &event.TypeMux{}
blockchain, _ := NewBlockChain(db, gspec.Config, ethash.NewFaker(), evmux, vm.Config{})
blockchain, _ := NewBlockChain(db, gspec.Config, ethash.NewFaker(), vm.Config{})
defer blockchain.Stop()
if i, err := blockchain.InsertChain(chain); err != nil {

17
core/dao_test.go
View File

@ -23,7 +23,6 @@ import (
"github.com/ethereum/go-ethereum/consensus/ethash"
"github.com/ethereum/go-ethereum/core/vm"
"github.com/ethereum/go-ethereum/ethdb"
"github.com/ethereum/go-ethereum/event"
"github.com/ethereum/go-ethereum/params"
)
@ -42,13 +41,13 @@ func TestDAOForkRangeExtradata(t *testing.T) {
proDb, _ := ethdb.NewMemDatabase()
gspec.MustCommit(proDb)
proConf := &params.ChainConfig{HomesteadBlock: big.NewInt(0), DAOForkBlock: forkBlock, DAOForkSupport: true}
proBc, _ := NewBlockChain(proDb, proConf, ethash.NewFaker(), new(event.TypeMux), vm.Config{})
proBc, _ := NewBlockChain(proDb, proConf, ethash.NewFaker(), vm.Config{})
defer proBc.Stop()
conDb, _ := ethdb.NewMemDatabase()
gspec.MustCommit(conDb)
conConf := &params.ChainConfig{HomesteadBlock: big.NewInt(0), DAOForkBlock: forkBlock, DAOForkSupport: false}
conBc, _ := NewBlockChain(conDb, conConf, ethash.NewFaker(), new(event.TypeMux), vm.Config{})
conBc, _ := NewBlockChain(conDb, conConf, ethash.NewFaker(), vm.Config{})
defer conBc.Stop()
if _, err := proBc.InsertChain(prefix); err != nil {
@ -62,8 +61,7 @@ func TestDAOForkRangeExtradata(t *testing.T) {
// Create a pro-fork block, and try to feed into the no-fork chain
db, _ = ethdb.NewMemDatabase()
gspec.MustCommit(db)
bc, _ := NewBlockChain(db, conConf, ethash.NewFaker(), new(event.TypeMux), vm.Config{})
bc, _ := NewBlockChain(db, conConf, ethash.NewFaker(), vm.Config{})
defer bc.Stop()
blocks := conBc.GetBlocksFromHash(conBc.CurrentBlock().Hash(), int(conBc.CurrentBlock().NumberU64()))
@ -85,8 +83,7 @@ func TestDAOForkRangeExtradata(t *testing.T) {
// Create a no-fork block, and try to feed into the pro-fork chain
db, _ = ethdb.NewMemDatabase()
gspec.MustCommit(db)
bc, _ = NewBlockChain(db, proConf, ethash.NewFaker(), new(event.TypeMux), vm.Config{})
bc, _ = NewBlockChain(db, proConf, ethash.NewFaker(), vm.Config{})
defer bc.Stop()
blocks = proBc.GetBlocksFromHash(proBc.CurrentBlock().Hash(), int(proBc.CurrentBlock().NumberU64()))
@ -109,8 +106,7 @@ func TestDAOForkRangeExtradata(t *testing.T) {
// Verify that contra-forkers accept pro-fork extra-datas after forking finishes
db, _ = ethdb.NewMemDatabase()
gspec.MustCommit(db)
bc, _ := NewBlockChain(db, conConf, ethash.NewFaker(), new(event.TypeMux), vm.Config{})
bc, _ := NewBlockChain(db, conConf, ethash.NewFaker(), vm.Config{})
defer bc.Stop()
blocks := conBc.GetBlocksFromHash(conBc.CurrentBlock().Hash(), int(conBc.CurrentBlock().NumberU64()))
@ -127,8 +123,7 @@ func TestDAOForkRangeExtradata(t *testing.T) {
// Verify that pro-forkers accept contra-fork extra-datas after forking finishes
db, _ = ethdb.NewMemDatabase()
gspec.MustCommit(db)
bc, _ = NewBlockChain(db, proConf, ethash.NewFaker(), new(event.TypeMux), vm.Config{})
bc, _ = NewBlockChain(db, proConf, ethash.NewFaker(), vm.Config{})
defer bc.Stop()
blocks = proBc.GetBlocksFromHash(proBc.CurrentBlock().Hash(), int(proBc.CurrentBlock().NumberU64()))

4
core/genesis_test.go
View File

@ -26,7 +26,6 @@ import (
"github.com/ethereum/go-ethereum/consensus/ethash"
"github.com/ethereum/go-ethereum/core/vm"
"github.com/ethereum/go-ethereum/ethdb"
"github.com/ethereum/go-ethereum/event"
"github.com/ethereum/go-ethereum/params"
)
@ -119,9 +118,8 @@ func TestSetupGenesis(t *testing.T) {
// Commit the 'old' genesis block with Homestead transition at #2.
// Advance to block #4, past the homestead transition block of customg.
genesis := oldcustomg.MustCommit(db)
bc, _ := NewBlockChain(db, oldcustomg.Config, ethash.NewFullFaker(), new(event.TypeMux), vm.Config{})
bc, _ := NewBlockChain(db, oldcustomg.Config, ethash.NewFullFaker(), vm.Config{})
defer bc.Stop()
bc.SetValidator(bproc{})
bc.InsertChain(makeBlockChainWithDiff(genesis, []int{2, 3, 4, 5}, 0))
bc.CurrentBlock()

101
core/tx_pool.go
View File

@ -34,6 +34,13 @@ import (
"gopkg.in/karalabe/cookiejar.v2/collections/prque"
)
const (
// chainHeadChanSize is the size of channel listening to ChainHeadEvent.
chainHeadChanSize = 10
// rmTxChanSize is the size of channel listening to RemovedTransactionEvent.
rmTxChanSize = 10
)
var (
// ErrInvalidSender is returned if the transaction contains an invalid signature.
ErrInvalidSender = errors.New("invalid sender")
@ -95,7 +102,14 @@ var (
underpricedTxCounter = metrics.NewCounter("txpool/underpriced")
)
type stateFn func() (*state.StateDB, error)
// blockChain provides the state of blockchain and current gas limit to do
// some pre checks in tx pool and event subscribers.
type blockChain interface {
State() (*state.StateDB, error)
GasLimit() *big.Int
SubscribeChainHeadEvent(ch chan<- ChainHeadEvent) event.Subscription
SubscribeRemovedTxEvent(ch chan<- RemovedTransactionEvent) event.Subscription
}
// TxPoolConfig are the configuration parameters of the transaction pool.
type TxPoolConfig struct {
@ -160,12 +174,15 @@ func (config *TxPoolConfig) sanitize() TxPoolConfig {
type TxPool struct {
config TxPoolConfig
chainconfig *params.ChainConfig
currentState stateFn // The state function which will allow us to do some pre checks
blockChain blockChain
pendingState *state.ManagedState
gasLimit func() *big.Int // The current gas limit function callback
gasPrice *big.Int
eventMux *event.TypeMux
events *event.TypeMuxSubscription
txFeed event.Feed
scope event.SubscriptionScope
chainHeadCh chan ChainHeadEvent
chainHeadSub event.Subscription
rmTxCh chan RemovedTransactionEvent
rmTxSub event.Subscription
signer types.Signer
mu sync.RWMutex
@ -185,7 +202,7 @@ type TxPool struct {
// NewTxPool creates a new transaction pool to gather, sort and filter inbound
// trnsactions from the network.
func NewTxPool(config TxPoolConfig, chainconfig *params.ChainConfig, eventMux *event.TypeMux, currentStateFn stateFn, gasLimitFn func() *big.Int) *TxPool {
func NewTxPool(config TxPoolConfig, chainconfig *params.ChainConfig, blockChain blockChain) *TxPool {
// Sanitize the input to ensure no vulnerable gas prices are set
config = (&config).sanitize()
@ -193,17 +210,16 @@ func NewTxPool(config TxPoolConfig, chainconfig *params.ChainConfig, eventMux *e
pool := &TxPool{
config: config,
chainconfig: chainconfig,
blockChain: blockChain,
signer: types.NewEIP155Signer(chainconfig.ChainId),
pending: make(map[common.Address]*txList),
queue: make(map[common.Address]*txList),
beats: make(map[common.Address]time.Time),
all: make(map[common.Hash]*types.Transaction),
eventMux: eventMux,
currentState: currentStateFn,
gasLimit: gasLimitFn,
chainHeadCh: make(chan ChainHeadEvent, chainHeadChanSize),
rmTxCh: make(chan RemovedTransactionEvent, rmTxChanSize),
gasPrice: new(big.Int).SetUint64(config.PriceLimit),
pendingState: nil,
events: eventMux.Subscribe(ChainHeadEvent{}, RemovedTransactionEvent{}),
}
pool.locals = newAccountSet(pool.signer)
pool.priced = newTxPricedList(&pool.all)
@ -220,6 +236,9 @@ func NewTxPool(config TxPoolConfig, chainconfig *params.ChainConfig, eventMux *e
log.Warn("Failed to rotate transaction journal", "err", err)
}
}
// Subscribe events from blockchain
pool.chainHeadSub = pool.blockChain.SubscribeChainHeadEvent(pool.chainHeadCh)
pool.rmTxSub = pool.blockChain.SubscribeRemovedTxEvent(pool.rmTxCh)
// Start the event loop and return
pool.wg.Add(1)
go pool.loop()
@ -248,25 +267,27 @@ func (pool *TxPool) loop() {
// Keep waiting for and reacting to the various events
for {
select {
// Handle any events fired by the system
case ev, ok := <-pool.events.Chan():
if !ok {
return
}
switch ev := ev.Data.(type) {
case ChainHeadEvent:
pool.mu.Lock()
if ev.Block != nil {
if pool.chainconfig.IsHomestead(ev.Block.Number()) {
pool.homestead = true
}
// Handle ChainHeadEvent
case ev := <-pool.chainHeadCh:
pool.mu.Lock()
if ev.Block != nil {
if pool.chainconfig.IsHomestead(ev.Block.Number()) {
pool.homestead = true
}
pool.reset()
pool.mu.Unlock()
case RemovedTransactionEvent:
pool.addTxs(ev.Txs, false)
}
pool.reset()
pool.mu.Unlock()
// Be unsubscribed due to system stopped
case <-pool.chainHeadSub.Err():
return
// Handle RemovedTransactionEvent
case ev := <-pool.rmTxCh:
pool.addTxs(ev.Txs, false)
// Be unsubscribed due to system stopped
case <-pool.rmTxSub.Err():
return
// Handle stats reporting ticks
case <-report.C:
@ -322,7 +343,7 @@ func (pool *TxPool) lockedReset() {
// reset retrieves the current state of the blockchain and ensures the content
// of the transaction pool is valid with regard to the chain state.
func (pool *TxPool) reset() {
currentState, err := pool.currentState()
currentState, err := pool.blockChain.State()
if err != nil {
log.Error("Failed reset txpool state", "err", err)
return
@ -347,7 +368,11 @@ func (pool *TxPool) reset() {
// Stop terminates the transaction pool.
func (pool *TxPool) Stop() {
pool.events.Unsubscribe()
// Unsubscribe all subscriptions registered from txpool
pool.scope.Close()
// Unsubscribe subscriptions registered from blockchain
pool.chainHeadSub.Unsubscribe()
pool.rmTxSub.Unsubscribe()
pool.wg.Wait()
if pool.journal != nil {
@ -356,6 +381,12 @@ func (pool *TxPool) Stop() {
log.Info("Transaction pool stopped")
}
// SubscribeTxPreEvent registers a subscription of TxPreEvent and
// starts sending event to the given channel.
func (pool *TxPool) SubscribeTxPreEvent(ch chan<- TxPreEvent) event.Subscription {
return pool.scope.Track(pool.txFeed.Subscribe(ch))
}
// GasPrice returns the current gas price enforced by the transaction pool.
func (pool *TxPool) GasPrice() *big.Int {
pool.mu.RLock()
@ -468,7 +499,7 @@ func (pool *TxPool) validateTx(tx *types.Transaction, local bool) error {
return ErrNegativeValue
}
// Ensure the transaction doesn't exceed the current block limit gas.
if pool.gasLimit().Cmp(tx.Gas()) < 0 {
if pool.blockChain.GasLimit().Cmp(tx.Gas()) < 0 {
return ErrGasLimit
}
// Make sure the transaction is signed properly
@ -482,7 +513,7 @@ func (pool *TxPool) validateTx(tx *types.Transaction, local bool) error {
return ErrUnderpriced
}
// Ensure the transaction adheres to nonce ordering
currentState, err := pool.currentState()
currentState, err := pool.blockChain.State()
if err != nil {
return err
}
@ -647,7 +678,7 @@ func (pool *TxPool) promoteTx(addr common.Address, hash common.Hash, tx *types.T
// Set the potentially new pending nonce and notify any subsystems of the new tx
pool.beats[addr] = time.Now()
pool.pendingState.SetNonce(addr, tx.Nonce()+1)
go pool.eventMux.Post(TxPreEvent{tx})
go pool.txFeed.Send(TxPreEvent{tx})
}
// AddLocal enqueues a single transaction into the pool if it is valid, marking
@ -690,7 +721,7 @@ func (pool *TxPool) addTx(tx *types.Transaction, local bool) error {
}
// If we added a new transaction, run promotion checks and return
if !replace {
state, err := pool.currentState()
state, err := pool.blockChain.State()
if err != nil {
return err
}
@ -717,7 +748,7 @@ func (pool *TxPool) addTxs(txs []*types.Transaction, local bool) error {
}
// Only reprocess the internal state if something was actually added
if len(dirty) > 0 {
state, err := pool.currentState()
state, err := pool.blockChain.State()
if err != nil {
return err
}
@ -804,7 +835,7 @@ func (pool *TxPool) removeTx(hash common.Hash) {
// future queue to the set of pending transactions. During this process, all
// invalidated transactions (low nonce, low balance) are deleted.
func (pool *TxPool) promoteExecutables(state *state.StateDB, accounts []common.Address) {
gaslimit := pool.gasLimit()
gaslimit := pool.blockChain.GasLimit()
// Gather all the accounts potentially needing updates
if accounts == nil {
@ -973,7 +1004,7 @@ func (pool *TxPool) promoteExecutables(state *state.StateDB, accounts []common.A
// executable/pending queue and any subsequent transactions that become unexecutable
// are moved back into the future queue.
func (pool *TxPool) demoteUnexecutables(state *state.StateDB) {
gaslimit := pool.gasLimit()
gaslimit := pool.blockChain.GasLimit()
// Iterate over all accounts and demote any non-executable transactions
for addr, list := range pool.pending {

181
core/tx_pool_test.go
View File

@ -44,6 +44,29 @@ func init() {
testTxPoolConfig.Journal = ""
}
type testBlockChain struct {
statedb *state.StateDB
gasLimit *big.Int
chainHeadFeed *event.Feed
rmTxFeed *event.Feed
}
func (bc *testBlockChain) State() (*state.StateDB, error) {
return bc.statedb, nil
}
func (bc *testBlockChain) GasLimit() *big.Int {
return new(big.Int).Set(bc.gasLimit)
}
func (bc *testBlockChain) SubscribeChainHeadEvent(ch chan<- ChainHeadEvent) event.Subscription {
return bc.chainHeadFeed.Subscribe(ch)
}
func (bc *testBlockChain) SubscribeRemovedTxEvent(ch chan<- RemovedTransactionEvent) event.Subscription {
return bc.rmTxFeed.Subscribe(ch)
}
func transaction(nonce uint64, gaslimit *big.Int, key *ecdsa.PrivateKey) *types.Transaction {
return pricedTransaction(nonce, gaslimit, big.NewInt(1), key)
}
@ -56,9 +79,10 @@ func pricedTransaction(nonce uint64, gaslimit, gasprice *big.Int, key *ecdsa.Pri
func setupTxPool() (*TxPool, *ecdsa.PrivateKey) {
db, _ := ethdb.NewMemDatabase()
statedb, _ := state.New(common.Hash{}, state.NewDatabase(db))
blockchain := &testBlockChain{statedb, big.NewInt(1000000), new(event.Feed), new(event.Feed)}
key, _ := crypto.GenerateKey()
pool := NewTxPool(testTxPoolConfig, params.TestChainConfig, new(event.TypeMux), func() (*state.StateDB, error) { return statedb, nil }, func() *big.Int { return big.NewInt(1000000) })
pool := NewTxPool(testTxPoolConfig, params.TestChainConfig, blockchain)
return pool, key
}
@ -96,6 +120,31 @@ func deriveSender(tx *types.Transaction) (common.Address, error) {
return types.Sender(types.HomesteadSigner{}, tx)
}
type testChain struct {
*testBlockChain
address common.Address
trigger *bool
}
// testChain.State() is used multiple times to reset the pending state.
// when simulate is true it will create a state that indicates
// that tx0 and tx1 are included in the chain.
func (c *testChain) State() (*state.StateDB, error) {
// delay "state change" by one. The tx pool fetches the
// state multiple times and by delaying it a bit we simulate
// a state change between those fetches.
stdb := c.statedb
if *c.trigger {
db, _ := ethdb.NewMemDatabase()
c.statedb, _ = state.New(common.Hash{}, state.NewDatabase(db))
// simulate that the new head block included tx0 and tx1
c.statedb.SetNonce(c.address, 2)
c.statedb.SetBalance(c.address, new(big.Int).SetUint64(params.Ether))
*c.trigger = false
}
return stdb, nil
}
// This test simulates a scenario where a new block is imported during a
// state reset and tests whether the pending state is in sync with the
// block head event that initiated the resetState().
@ -104,38 +153,18 @@ func TestStateChangeDuringPoolReset(t *testing.T) {
db, _ = ethdb.NewMemDatabase()
key, _ = crypto.GenerateKey()
address = crypto.PubkeyToAddress(key.PublicKey)
mux = new(event.TypeMux)
statedb, _ = state.New(common.Hash{}, state.NewDatabase(db))
trigger = false
)
// setup pool with 2 transaction in it
statedb.SetBalance(address, new(big.Int).SetUint64(params.Ether))
blockchain := &testChain{&testBlockChain{statedb, big.NewInt(1000000000), new(event.Feed), new(event.Feed)}, address, &trigger}
tx0 := transaction(0, big.NewInt(100000), key)
tx1 := transaction(1, big.NewInt(100000), key)
// stateFunc is used multiple times to reset the pending state.
// when simulate is true it will create a state that indicates
// that tx0 and tx1 are included in the chain.
stateFunc := func() (*state.StateDB, error) {
// delay "state change" by one. The tx pool fetches the
// state multiple times and by delaying it a bit we simulate
// a state change between those fetches.
stdb := statedb
if trigger {
statedb, _ = state.New(common.Hash{}, state.NewDatabase(db))
// simulate that the new head block included tx0 and tx1
statedb.SetNonce(address, 2)
statedb.SetBalance(address, new(big.Int).SetUint64(params.Ether))
trigger = false
}
return stdb, nil
}
gasLimitFunc := func() *big.Int { return big.NewInt(1000000000) }
pool := NewTxPool(testTxPoolConfig, params.TestChainConfig, mux, stateFunc, gasLimitFunc)
pool := NewTxPool(testTxPoolConfig, params.TestChainConfig, blockchain)
defer pool.Stop()
nonce := pool.State().GetNonce(address)
@ -176,7 +205,7 @@ func TestInvalidTransactions(t *testing.T) {
tx := transaction(0, big.NewInt(100), key)
from, _ := deriveSender(tx)
currentState, _ := pool.currentState()
currentState, _ := pool.blockChain.State()
currentState.AddBalance(from, big.NewInt(1))
if err := pool.AddRemote(tx); err != ErrInsufficientFunds {
t.Error("expected", ErrInsufficientFunds)
@ -211,7 +240,7 @@ func TestTransactionQueue(t *testing.T) {
tx := transaction(0, big.NewInt(100), key)
from, _ := deriveSender(tx)
currentState, _ := pool.currentState()
currentState, _ := pool.blockChain.State()
currentState.AddBalance(from, big.NewInt(1000))
pool.lockedReset()
pool.enqueueTx(tx.Hash(), tx)
@ -241,7 +270,7 @@ func TestTransactionQueue(t *testing.T) {
tx2 := transaction(10, big.NewInt(100), key)
tx3 := transaction(11, big.NewInt(100), key)
from, _ = deriveSender(tx1)
currentState, _ = pool.currentState()
currentState, _ = pool.blockChain.State()
currentState.AddBalance(from, big.NewInt(1000))
pool.lockedReset()
@ -264,7 +293,7 @@ func TestRemoveTx(t *testing.T) {
defer pool.Stop()
addr := crypto.PubkeyToAddress(key.PublicKey)
currentState, _ := pool.currentState()
currentState, _ := pool.blockChain.State()
currentState.AddBalance(addr, big.NewInt(1))
tx1 := transaction(0, big.NewInt(100), key)
@ -296,7 +325,7 @@ func TestNegativeValue(t *testing.T) {
tx, _ := types.SignTx(types.NewTransaction(0, common.Address{}, big.NewInt(-1), big.NewInt(100), big.NewInt(1), nil), types.HomesteadSigner{}, key)
from, _ := deriveSender(tx)
currentState, _ := pool.currentState()
currentState, _ := pool.blockChain.State()
currentState.AddBalance(from, big.NewInt(1))
if err := pool.AddRemote(tx); err != ErrNegativeValue {
t.Error("expected", ErrNegativeValue, "got", err)
@ -311,8 +340,8 @@ func TestTransactionChainFork(t *testing.T) {
resetState := func() {
db, _ := ethdb.NewMemDatabase()
statedb, _ := state.New(common.Hash{}, state.NewDatabase(db))
pool.currentState = func() (*state.StateDB, error) { return statedb, nil }
currentState, _ := pool.currentState()
pool.blockChain = &testBlockChain{statedb, big.NewInt(1000000), new(event.Feed), new(event.Feed)}
currentState, _ := pool.blockChain.State()
currentState.AddBalance(addr, big.NewInt(100000000000000))
pool.lockedReset()
}
@ -339,8 +368,8 @@ func TestTransactionDoubleNonce(t *testing.T) {
resetState := func() {
db, _ := ethdb.NewMemDatabase()
statedb, _ := state.New(common.Hash{}, state.NewDatabase(db))
pool.currentState = func() (*state.StateDB, error) { return statedb, nil }
currentState, _ := pool.currentState()
pool.blockChain = &testBlockChain{statedb, big.NewInt(1000000), new(event.Feed), new(event.Feed)}
currentState, _ := pool.blockChain.State()
currentState.AddBalance(addr, big.NewInt(100000000000000))
pool.lockedReset()
}
@ -358,7 +387,7 @@ func TestTransactionDoubleNonce(t *testing.T) {
if replace, err := pool.add(tx2, false); err != nil || !replace {
t.Errorf("second transaction insert failed (%v) or not reported replacement (%v)", err, replace)
}
state, _ := pool.currentState()
state, _ := pool.blockChain.State()
pool.promoteExecutables(state, []common.Address{addr})
if pool.pending[addr].Len() != 1 {
t.Error("expected 1 pending transactions, got", pool.pending[addr].Len())
@ -386,7 +415,7 @@ func TestMissingNonce(t *testing.T) {
defer pool.Stop()
addr := crypto.PubkeyToAddress(key.PublicKey)
currentState, _ := pool.currentState()
currentState, _ := pool.blockChain.State()
currentState.AddBalance(addr, big.NewInt(100000000000000))
tx := transaction(1, big.NewInt(100000), key)
if _, err := pool.add(tx, false); err != nil {
@ -409,7 +438,7 @@ func TestNonceRecovery(t *testing.T) {
defer pool.Stop()
addr := crypto.PubkeyToAddress(key.PublicKey)
currentState, _ := pool.currentState()
currentState, _ := pool.blockChain.State()
currentState.SetNonce(addr, n)
currentState.AddBalance(addr, big.NewInt(100000000000000))
pool.lockedReset()
@ -431,11 +460,14 @@ func TestRemovedTxEvent(t *testing.T) {
tx := transaction(0, big.NewInt(1000000), key)
from, _ := deriveSender(tx)
currentState, _ := pool.currentState()
currentState, _ := pool.blockChain.State()
currentState.AddBalance(from, big.NewInt(1000000000000))
pool.lockedReset()
pool.eventMux.Post(RemovedTransactionEvent{types.Transactions{tx}})
pool.eventMux.Post(ChainHeadEvent{nil})
blockChain, _ := pool.blockChain.(*testBlockChain)
blockChain.rmTxFeed.Send(RemovedTransactionEvent{types.Transactions{tx}})
blockChain.chainHeadFeed.Send(ChainHeadEvent{nil})
// wait for handling events
<-time.After(500 * time.Millisecond)
if pool.pending[from].Len() != 1 {
t.Error("expected 1 pending tx, got", pool.pending[from].Len())
}
@ -453,7 +485,7 @@ func TestTransactionDropping(t *testing.T) {
account, _ := deriveSender(transaction(0, big.NewInt(0), key))
state, _ := pool.currentState()
state, _ := pool.blockChain.State()
state.AddBalance(account, big.NewInt(1000))
// Add some pending and some queued transactions
@ -518,7 +550,7 @@ func TestTransactionDropping(t *testing.T) {
t.Errorf("total transaction mismatch: have %d, want %d", len(pool.all), 4)
}
// Reduce the block gas limit, check that invalidated transactions are dropped
pool.gasLimit = func() *big.Int { return big.NewInt(100) }
pool.blockChain.(*testBlockChain).gasLimit = big.NewInt(100)
pool.lockedReset()
if _, ok := pool.pending[account].txs.items[tx0.Nonce()]; !ok {
@ -548,7 +580,7 @@ func TestTransactionPostponing(t *testing.T) {
account, _ := deriveSender(transaction(0, big.NewInt(0), key))
state, _ := pool.currentState()
state, _ := pool.blockChain.State()
state.AddBalance(account, big.NewInt(1000))
// Add a batch consecutive pending transactions for validation
@ -624,7 +656,7 @@ func TestTransactionQueueAccountLimiting(t *testing.T) {
account, _ := deriveSender(transaction(0, big.NewInt(0), key))
state, _ := pool.currentState()
state, _ := pool.blockChain.State()
state.AddBalance(account, big.NewInt(1000000))
pool.lockedReset()
@ -667,16 +699,17 @@ func testTransactionQueueGlobalLimiting(t *testing.T, nolocals bool) {
// Create the pool to test the limit enforcement with
db, _ := ethdb.NewMemDatabase()
statedb, _ := state.New(common.Hash{}, state.NewDatabase(db))
blockchain := &testBlockChain{statedb, big.NewInt(1000000), new(event.Feed), new(event.Feed)}
config := testTxPoolConfig
config.NoLocals = nolocals
config.GlobalQueue = config.AccountQueue*3 - 1 // reduce the queue limits to shorten test time (-1 to make it non divisible)
pool := NewTxPool(config, params.TestChainConfig, new(event.TypeMux), func() (*state.StateDB, error) { return statedb, nil }, func() *big.Int { return big.NewInt(1000000) })
pool := NewTxPool(config, params.TestChainConfig, blockchain)
defer pool.Stop()
// Create a number of test accounts and fund them (last one will be the local)
state, _ := pool.currentState()
state, _ := pool.blockChain.State()
keys := make([]*ecdsa.PrivateKey, 5)
for i := 0; i < len(keys); i++ {
@ -757,19 +790,20 @@ func testTransactionQueueTimeLimiting(t *testing.T, nolocals bool) {
// Create the pool to test the non-expiration enforcement
db, _ := ethdb.NewMemDatabase()
statedb, _ := state.New(common.Hash{}, state.NewDatabase(db))
blockchain := &testBlockChain{statedb, big.NewInt(1000000), new(event.Feed), new(event.Feed)}
config := testTxPoolConfig
config.Lifetime = time.Second
config.NoLocals = nolocals
pool := NewTxPool(config, params.TestChainConfig, new(event.TypeMux), func() (*state.StateDB, error) { return statedb, nil }, func() *big.Int { return big.NewInt(1000000) })
pool := NewTxPool(config, params.TestChainConfig, blockchain)
defer pool.Stop()
// Create two test accounts to ensure remotes expire but locals do not
local, _ := crypto.GenerateKey()
remote, _ := crypto.GenerateKey()
state, _ := pool.currentState()
state, _ := pool.blockChain.State()
state.AddBalance(crypto.PubkeyToAddress(local.PublicKey), big.NewInt(1000000000))
state.AddBalance(crypto.PubkeyToAddress(remote.PublicKey), big.NewInt(1000000000))
@ -821,7 +855,7 @@ func TestTransactionPendingLimiting(t *testing.T) {
account, _ := deriveSender(transaction(0, big.NewInt(0), key))
state, _ := pool.currentState()
state, _ := pool.blockChain.State()
state.AddBalance(account, big.NewInt(1000000))
pool.lockedReset()
@ -853,7 +887,7 @@ func testTransactionLimitingEquivalency(t *testing.T, origin uint64) {
defer pool1.Stop()
account1, _ := deriveSender(transaction(0, big.NewInt(0), key1))
state1, _ := pool1.currentState()
state1, _ := pool1.blockChain.State()
state1.AddBalance(account1, big.NewInt(1000000))
for i := uint64(0); i < testTxPoolConfig.AccountQueue+5; i++ {
@ -866,7 +900,7 @@ func testTransactionLimitingEquivalency(t *testing.T, origin uint64) {
defer pool2.Stop()
account2, _ := deriveSender(transaction(0, big.NewInt(0), key2))
state2, _ := pool2.currentState()
state2, _ := pool2.blockChain.State()
state2.AddBalance(account2, big.NewInt(1000000))
txns := []*types.Transaction{}
@ -900,15 +934,16 @@ func TestTransactionPendingGlobalLimiting(t *testing.T) {
// Create the pool to test the limit enforcement with
db, _ := ethdb.NewMemDatabase()
statedb, _ := state.New(common.Hash{}, state.NewDatabase(db))
blockchain := &testBlockChain{statedb, big.NewInt(1000000), new(event.Feed), new(event.Feed)}
config := testTxPoolConfig
config.GlobalSlots = config.AccountSlots * 10
pool := NewTxPool(config, params.TestChainConfig, new(event.TypeMux), func() (*state.StateDB, error) { return statedb, nil }, func() *big.Int { return big.NewInt(1000000) })
pool := NewTxPool(config, params.TestChainConfig, blockchain)
defer pool.Stop()
// Create a number of test accounts and fund them
state, _ := pool.currentState()
state, _ := pool.blockChain.State()
keys := make([]*ecdsa.PrivateKey, 5)
for i := 0; i < len(keys); i++ {
@ -946,17 +981,18 @@ func TestTransactionCapClearsFromAll(t *testing.T) {
// Create the pool to test the limit enforcement with
db, _ := ethdb.NewMemDatabase()
statedb, _ := state.New(common.Hash{}, state.NewDatabase(db))
blockchain := &testBlockChain{statedb, big.NewInt(1000000), new(event.Feed), new(event.Feed)}
config := testTxPoolConfig
config.AccountSlots = 2
config.AccountQueue = 2
config.GlobalSlots = 8
pool := NewTxPool(config, params.TestChainConfig, new(event.TypeMux), func() (*state.StateDB, error) { return statedb, nil }, func() *big.Int { return big.NewInt(1000000) })
pool := NewTxPool(config, params.TestChainConfig, blockchain)
defer pool.Stop()
// Create a number of test accounts and fund them
state, _ := pool.currentState()
state, _ := pool.blockChain.State()
key, _ := crypto.GenerateKey()
addr := crypto.PubkeyToAddress(key.PublicKey)
@ -980,15 +1016,16 @@ func TestTransactionPendingMinimumAllowance(t *testing.T) {
// Create the pool to test the limit enforcement with
db, _ := ethdb.NewMemDatabase()
statedb, _ := state.New(common.Hash{}, state.NewDatabase(db))
blockchain := &testBlockChain{statedb, big.NewInt(1000000), new(event.Feed), new(event.Feed)}
config := testTxPoolConfig
config.GlobalSlots = 0
pool := NewTxPool(config, params.TestChainConfig, new(event.TypeMux), func() (*state.StateDB, error) { return statedb, nil }, func() *big.Int { return big.NewInt(1000000) })
pool := NewTxPool(config, params.TestChainConfig, blockchain)
defer pool.Stop()
// Create a number of test accounts and fund them
state, _ := pool.currentState()
state, _ := pool.blockChain.State()
keys := make([]*ecdsa.PrivateKey, 5)
for i := 0; i < len(keys); i++ {
@ -1028,12 +1065,13 @@ func TestTransactionPoolRepricing(t *testing.T) {
// Create the pool to test the pricing enforcement with
db, _ := ethdb.NewMemDatabase()
statedb, _ := state.New(common.Hash{}, state.NewDatabase(db))
blockchain := &testBlockChain{statedb, big.NewInt(1000000), new(event.Feed), new(event.Feed)}
pool := NewTxPool(testTxPoolConfig, params.TestChainConfig, new(event.TypeMux), func() (*state.StateDB, error) { return statedb, nil }, func() *big.Int { return big.NewInt(1000000) })
pool := NewTxPool(testTxPoolConfig, params.TestChainConfig, blockchain)
defer pool.Stop()
// Create a number of test accounts and fund them
state, _ := pool.currentState()
state, _ := pool.blockChain.State()
keys := make([]*ecdsa.PrivateKey, 3)
for i := 0; i < len(keys); i++ {
@ -1112,16 +1150,17 @@ func TestTransactionPoolUnderpricing(t *testing.T) {
// Create the pool to test the pricing enforcement with
db, _ := ethdb.NewMemDatabase()
statedb, _ := state.New(common.Hash{}, state.NewDatabase(db))
blockchain := &testBlockChain{statedb, big.NewInt(1000000), new(event.Feed), new(event.Feed)}
config := testTxPoolConfig
config.GlobalSlots = 2
config.GlobalQueue = 2
pool := NewTxPool(config, params.TestChainConfig, new(event.TypeMux), func() (*state.StateDB, error) { return statedb, nil }, func() *big.Int { return big.NewInt(1000000) })
pool := NewTxPool(config, params.TestChainConfig, blockchain)
defer pool.Stop()
// Create a number of test accounts and fund them
state, _ := pool.currentState()
state, _ := pool.blockChain.State()
keys := make([]*ecdsa.PrivateKey, 3)
for i := 0; i < len(keys); i++ {
@ -1199,14 +1238,15 @@ func TestTransactionReplacement(t *testing.T) {
// Create the pool to test the pricing enforcement with
db, _ := ethdb.NewMemDatabase()
statedb, _ := state.New(common.Hash{}, state.NewDatabase(db))
blockchain := &testBlockChain{statedb, big.NewInt(1000000), new(event.Feed), new(event.Feed)}
pool := NewTxPool(testTxPoolConfig, params.TestChainConfig, new(event.TypeMux), func() (*state.StateDB, error) { return statedb, nil }, func() *big.Int { return big.NewInt(1000000) })
pool := NewTxPool(testTxPoolConfig, params.TestChainConfig, blockchain)
defer pool.Stop()
// Create a test account to add transactions with
key, _ := crypto.GenerateKey()
state, _ := pool.currentState()
state, _ := pool.blockChain.State()
state.AddBalance(crypto.PubkeyToAddress(key.PublicKey), big.NewInt(1000000000))
// Add pending transactions, ensuring the minimum price bump is enforced for replacement (for ultra low prices too)
@ -1278,19 +1318,20 @@ func testTransactionJournaling(t *testing.T, nolocals bool) {
// Create the original pool to inject transaction into the journal
db, _ := ethdb.NewMemDatabase()
statedb, _ := state.New(common.Hash{}, state.NewDatabase(db))
blockchain := &testBlockChain{statedb, big.NewInt(1000000), new(event.Feed), new(event.Feed)}
config := testTxPoolConfig
config.NoLocals = nolocals
config.Journal = journal
config.Rejournal = time.Second
pool := NewTxPool(config, params.TestChainConfig, new(event.TypeMux), func() (*state.StateDB, error) { return statedb, nil }, func() *big.Int { return big.NewInt(1000000) })
pool := NewTxPool(config, params.TestChainConfig, blockchain)
// Create two test accounts to ensure remotes expire but locals do not
local, _ := crypto.GenerateKey()
remote, _ := crypto.GenerateKey()
statedb, _ = pool.currentState()
statedb, _ = pool.blockChain.State()
statedb.AddBalance(crypto.PubkeyToAddress(local.PublicKey), big.NewInt(1000000000))
statedb.AddBalance(crypto.PubkeyToAddress(remote.PublicKey), big.NewInt(1000000000))
@ -1320,7 +1361,8 @@ func testTransactionJournaling(t *testing.T, nolocals bool) {
// Terminate the old pool, bump the local nonce, create a new pool and ensure relevant transaction survive
pool.Stop()
statedb.SetNonce(crypto.PubkeyToAddress(local.PublicKey), 1)
pool = NewTxPool(config, params.TestChainConfig, new(event.TypeMux), func() (*state.StateDB, error) { return statedb, nil }, func() *big.Int { return big.NewInt(1000000) })
blockchain = &testBlockChain{statedb, big.NewInt(1000000), new(event.Feed), new(event.Feed)}
pool = NewTxPool(config, params.TestChainConfig, blockchain)
pending, queued = pool.Stats()
if queued != 0 {
@ -1344,7 +1386,8 @@ func testTransactionJournaling(t *testing.T, nolocals bool) {
time.Sleep(2 * config.Rejournal)
pool.Stop()
statedb.SetNonce(crypto.PubkeyToAddress(local.PublicKey), 1)
pool = NewTxPool(config, params.TestChainConfig, new(event.TypeMux), func() (*state.StateDB, error) { return statedb, nil }, func() *big.Int { return big.NewInt(1000000) })
blockchain = &testBlockChain{statedb, big.NewInt(1000000), new(event.Feed), new(event.Feed)}
pool = NewTxPool(config, params.TestChainConfig, blockchain)
pending, queued = pool.Stats()
if pending != 0 {
@ -1377,7 +1420,7 @@ func benchmarkPendingDemotion(b *testing.B, size int) {
defer pool.Stop()
account, _ := deriveSender(transaction(0, big.NewInt(0), key))
state, _ := pool.currentState()
state, _ := pool.blockChain.State()
state.AddBalance(account, big.NewInt(1000000))
for i := 0; i < size; i++ {
@ -1403,7 +1446,7 @@ func benchmarkFuturePromotion(b *testing.B, size int) {
defer pool.Stop()
account, _ := deriveSender(transaction(0, big.NewInt(0), key))
state, _ := pool.currentState()
state, _ := pool.blockChain.State()
state.AddBalance(account, big.NewInt(1000000))
for i := 0; i < size; i++ {
@ -1424,7 +1467,7 @@ func BenchmarkPoolInsert(b *testing.B) {
defer pool.Stop()
account, _ := deriveSender(transaction(0, big.NewInt(0), key))
state, _ := pool.currentState()
state, _ := pool.blockChain.State()
state.AddBalance(account, big.NewInt(1000000))
txs := make(types.Transactions, b.N)
@ -1449,7 +1492,7 @@ func benchmarkPoolBatchInsert(b *testing.B, size int) {
defer pool.Stop()
account, _ := deriveSender(transaction(0, big.NewInt(0), key))
state, _ := pool.currentState()
state, _ := pool.blockChain.State()
state.AddBalance(account, big.NewInt(1000000))
batches := make([]types.Transactions, b.N)

28
eth/api_backend.go
View File

@ -115,6 +115,30 @@ func (b *EthApiBackend) GetEVM(ctx context.Context, msg core.Message, state *sta
return vm.NewEVM(context, state, b.eth.chainConfig, vmCfg), vmError, nil
}
func (b *EthApiBackend) SubscribeRemovedTxEvent(ch chan<- core.RemovedTransactionEvent) event.Subscription {
return b.eth.BlockChain().SubscribeRemovedTxEvent(ch)
}
func (b *EthApiBackend) SubscribeRemovedLogsEvent(ch chan<- core.RemovedLogsEvent) event.Subscription {
return b.eth.BlockChain().SubscribeRemovedLogsEvent(ch)
}
func (b *EthApiBackend) SubscribeChainEvent(ch chan<- core.ChainEvent) event.Subscription {
return b.eth.BlockChain().SubscribeChainEvent(ch)
}
func (b *EthApiBackend) SubscribeChainHeadEvent(ch chan<- core.ChainHeadEvent) event.Subscription {
return b.eth.BlockChain().SubscribeChainHeadEvent(ch)
}
func (b *EthApiBackend) SubscribeChainSideEvent(ch chan<- core.ChainSideEvent) event.Subscription {
return b.eth.BlockChain().SubscribeChainSideEvent(ch)
}
func (b *EthApiBackend) SubscribeLogsEvent(ch chan<- []*types.Log) event.Subscription {
return b.eth.BlockChain().SubscribeLogsEvent(ch)
}
func (b *EthApiBackend) SendTx(ctx context.Context, signedTx *types.Transaction) error {
return b.eth.txPool.AddLocal(signedTx)
}
@ -151,6 +175,10 @@ func (b *EthApiBackend) TxPoolContent() (map[common.Address]types.Transactions,
return b.eth.TxPool().Content()
}
func (b *EthApiBackend) SubscribeTxPreEvent(ch chan<- core.TxPreEvent) event.Subscription {
return b.eth.TxPool().SubscribeTxPreEvent(ch)
}
func (b *EthApiBackend) Downloader() *downloader.Downloader {
return b.eth.Downloader()
}

4
eth/backend.go
View File

@ -137,7 +137,7 @@ func New(ctx *node.ServiceContext, config *Config) (*Ethereum, error) {
}
vmConfig := vm.Config{EnablePreimageRecording: config.EnablePreimageRecording}
eth.blockchain, err = core.NewBlockChain(chainDb, eth.chainConfig, eth.engine, eth.eventMux, vmConfig)
eth.blockchain, err = core.NewBlockChain(chainDb, eth.chainConfig, eth.engine, vmConfig)
if err != nil {
return nil, err
}
@ -151,7 +151,7 @@ func New(ctx *node.ServiceContext, config *Config) (*Ethereum, error) {
if config.TxPool.Journal != "" {
config.TxPool.Journal = ctx.ResolvePath(config.TxPool.Journal)
}
eth.txPool = core.NewTxPool(config.TxPool, eth.chainConfig, eth.EventMux(), eth.blockchain.State, eth.blockchain.GasLimit)
eth.txPool = core.NewTxPool(config.TxPool, eth.chainConfig, eth.blockchain)
maxPeers := config.MaxPeers
if config.LightServ > 0 {

4
eth/filters/filter.go
View File

@ -34,6 +34,10 @@ type Backend interface {
EventMux() *event.TypeMux
HeaderByNumber(ctx context.Context, blockNr rpc.BlockNumber) (*types.Header, error)
GetReceipts(ctx context.Context, blockHash common.Hash) (types.Receipts, error)
SubscribeTxPreEvent(chan<- core.TxPreEvent) event.Subscription
SubscribeChainEvent(ch chan<- core.ChainEvent) event.Subscription
SubscribeRemovedLogsEvent(ch chan<- core.RemovedLogsEvent) event.Subscription
SubscribeLogsEvent(ch chan<- []*types.Log) event.Subscription
}
// Filter can be used to retrieve and filter logs.

98
eth/filters/filter_system.go
View File

@ -54,6 +54,19 @@ const (
LastIndexSubscription
)
const (
// txChanSize is the size of channel listening to TxPreEvent.
// The number is referenced from the size of tx pool.
txChanSize = 4096
// rmLogsChanSize is the size of channel listening to RemovedLogsEvent.
rmLogsChanSize = 10
// logsChanSize is the size of channel listening to LogsEvent.
logsChanSize = 10
// chainEvChanSize is the size of channel listening to ChainEvent.
chainEvChanSize = 10
)
var (
ErrInvalidSubscriptionID = errors.New("invalid id")
)
@ -276,57 +289,50 @@ func (es *EventSystem) SubscribePendingTxEvents(hashes chan common.Hash) *Subscr
type filterIndex map[Type]map[rpc.ID]*subscription
// broadcast event to filters that match criteria.
func (es *EventSystem) broadcast(filters filterIndex, ev *event.TypeMuxEvent) {
func (es *EventSystem) broadcast(filters filterIndex, ev interface{}) {
if ev == nil {
return
}
switch e := ev.Data.(type) {
switch e := ev.(type) {
case []*types.Log:
if len(e) > 0 {
for _, f := range filters[LogsSubscription] {
if ev.Time.After(f.created) {
if matchedLogs := filterLogs(e, f.logsCrit.FromBlock, f.logsCrit.ToBlock, f.logsCrit.Addresses, f.logsCrit.Topics); len(matchedLogs) > 0 {
f.logs <- matchedLogs
}
if matchedLogs := filterLogs(e, f.logsCrit.FromBlock, f.logsCrit.ToBlock, f.logsCrit.Addresses, f.logsCrit.Topics); len(matchedLogs) > 0 {
f.logs <- matchedLogs
}
}
}
case core.RemovedLogsEvent:
for _, f := range filters[LogsSubscription] {
if ev.Time.After(f.created) {
if matchedLogs := filterLogs(e.Logs, f.logsCrit.FromBlock, f.logsCrit.ToBlock, f.logsCrit.Addresses, f.logsCrit.Topics); len(matchedLogs) > 0 {
f.logs <- matchedLogs
}
if matchedLogs := filterLogs(e.Logs, f.logsCrit.FromBlock, f.logsCrit.ToBlock, f.logsCrit.Addresses, f.logsCrit.Topics); len(matchedLogs) > 0 {
f.logs <- matchedLogs
}
}
case core.PendingLogsEvent:
for _, f := range filters[PendingLogsSubscription] {
if ev.Time.After(f.created) {
if matchedLogs := filterLogs(e.Logs, nil, f.logsCrit.ToBlock, f.logsCrit.Addresses, f.logsCrit.Topics); len(matchedLogs) > 0 {
f.logs <- matchedLogs
case *event.TypeMuxEvent:
switch muxe := e.Data.(type) {
case core.PendingLogsEvent:
for _, f := range filters[PendingLogsSubscription] {
if e.Time.After(f.created) {
if matchedLogs := filterLogs(muxe.Logs, nil, f.logsCrit.ToBlock, f.logsCrit.Addresses, f.logsCrit.Topics); len(matchedLogs) > 0 {
f.logs <- matchedLogs
}
}
}
}
case core.TxPreEvent:
for _, f := range filters[PendingTransactionsSubscription] {
if ev.Time.After(f.created) {
f.hashes <- e.Tx.Hash()
}
f.hashes <- e.Tx.Hash()
}
case core.ChainEvent:
for _, f := range filters[BlocksSubscription] {
if ev.Time.After(f.created) {
f.headers <- e.Block.Header()
}
f.headers <- e.Block.Header()
}
if es.lightMode && len(filters[LogsSubscription]) > 0 {
es.lightFilterNewHead(e.Block.Header(), func(header *types.Header, remove bool) {
for _, f := range filters[LogsSubscription] {
if ev.Time.After(f.created) {
if matchedLogs := es.lightFilterLogs(header, f.logsCrit.Addresses, f.logsCrit.Topics, remove); len(matchedLogs) > 0 {
f.logs <- matchedLogs
}
if matchedLogs := es.lightFilterLogs(header, f.logsCrit.Addresses, f.logsCrit.Topics, remove); len(matchedLogs) > 0 {
f.logs <- matchedLogs
}
}
})
@ -395,9 +401,28 @@ func (es *EventSystem) lightFilterLogs(header *types.Header, addresses []common.
func (es *EventSystem) eventLoop() {
var (
index = make(filterIndex)
sub = es.mux.Subscribe(core.PendingLogsEvent{}, core.RemovedLogsEvent{}, []*types.Log{}, core.TxPreEvent{}, core.ChainEvent{})
sub = es.mux.Subscribe(core.PendingLogsEvent{})
// Subscribe TxPreEvent form txpool
txCh = make(chan core.TxPreEvent, txChanSize)
txSub = es.backend.SubscribeTxPreEvent(txCh)
// Subscribe RemovedLogsEvent
rmLogsCh = make(chan core.RemovedLogsEvent, rmLogsChanSize)
rmLogsSub = es.backend.SubscribeRemovedLogsEvent(rmLogsCh)
// Subscribe []*types.Log
logsCh = make(chan []*types.Log, logsChanSize)
logsSub = es.backend.SubscribeLogsEvent(logsCh)
// Subscribe ChainEvent
chainEvCh = make(chan core.ChainEvent, chainEvChanSize)
chainEvSub = es.backend.SubscribeChainEvent(chainEvCh)
)
// Unsubscribe all events
defer sub.Unsubscribe()
defer txSub.Unsubscribe()
defer rmLogsSub.Unsubscribe()
defer logsSub.Unsubscribe()
defer chainEvSub.Unsubscribe()
for i := UnknownSubscription; i < LastIndexSubscription; i++ {
index[i] = make(map[rpc.ID]*subscription)
}
@ -409,6 +434,17 @@ func (es *EventSystem) eventLoop() {
return
}
es.broadcast(index, ev)
// Handle subscribed events
case ev := <-txCh:
es.broadcast(index, ev)
case ev := <-rmLogsCh:
es.broadcast(index, ev)
case ev := <-logsCh:
es.broadcast(index, ev)
case ev := <-chainEvCh:
es.broadcast(index, ev)
case f := <-es.install:
if f.typ == MinedAndPendingLogsSubscription {
// the type are logs and pending logs subscriptions
@ -427,6 +463,16 @@ func (es *EventSystem) eventLoop() {
delete(index[f.typ], f.id)
}
close(f.err)
// System stopped
case <-txSub.Err():
return
case <-rmLogsSub.Err():
return
case <-logsSub.Err():
return
case <-chainEvSub.Err():
return
}
}
}

117
eth/filters/filter_system_test.go
View File

@ -34,8 +34,12 @@ import (
)
type testBackend struct {
mux *event.TypeMux
db ethdb.Database
mux *event.TypeMux
db ethdb.Database
txFeed *event.Feed
rmLogsFeed *event.Feed
logsFeed *event.Feed
chainFeed *event.Feed
}
func (b *testBackend) ChainDb() ethdb.Database {
@ -64,6 +68,22 @@ func (b *testBackend) GetReceipts(ctx context.Context, blockHash common.Hash) (t
return core.GetBlockReceipts(b.db, blockHash, num), nil
}
func (b *testBackend) SubscribeTxPreEvent(ch chan<- core.TxPreEvent) event.Subscription {
return b.txFeed.Subscribe(ch)
}
func (b *testBackend) SubscribeRemovedLogsEvent(ch chan<- core.RemovedLogsEvent) event.Subscription {
return b.rmLogsFeed.Subscribe(ch)
}
func (b *testBackend) SubscribeLogsEvent(ch chan<- []*types.Log) event.Subscription {
return b.logsFeed.Subscribe(ch)
}
func (b *testBackend) SubscribeChainEvent(ch chan<- core.ChainEvent) event.Subscription {
return b.chainFeed.Subscribe(ch)
}
// 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)
@ -75,7 +95,11 @@ func TestBlockSubscription(t *testing.T) {
var (
mux = new(event.TypeMux)
db, _ = ethdb.NewMemDatabase()
backend = &testBackend{mux, db}
txFeed = new(event.Feed)
rmLogsFeed = new(event.Feed)
logsFeed = new(event.Feed)
chainFeed = new(event.Feed)
backend = &testBackend{mux, db, txFeed, rmLogsFeed, logsFeed, chainFeed}
api = NewPublicFilterAPI(backend, false)
genesis = new(core.Genesis).MustCommit(db)
chain, _ = core.GenerateChain(params.TestChainConfig, genesis, db, 10, func(i int, gen *core.BlockGen) {})
@ -114,7 +138,7 @@ func TestBlockSubscription(t *testing.T) {
time.Sleep(1 * time.Second)
for _, e := range chainEvents {
mux.Post(e)
chainFeed.Send(e)
}
<-sub0.Err()
@ -126,10 +150,14 @@ func TestPendingTxFilter(t *testing.T) {
t.Parallel()
var (
mux = new(event.TypeMux)
db, _ = ethdb.NewMemDatabase()
backend = &testBackend{mux, db}
api = NewPublicFilterAPI(backend, false)
mux = new(event.TypeMux)
db, _ = ethdb.NewMemDatabase()
txFeed = new(event.Feed)
rmLogsFeed = new(event.Feed)
logsFeed = new(event.Feed)
chainFeed = new(event.Feed)
backend = &testBackend{mux, db, txFeed, rmLogsFeed, logsFeed, chainFeed}
api = NewPublicFilterAPI(backend, false)
transactions = []*types.Transaction{
types.NewTransaction(0, common.HexToAddress("0xb794f5ea0ba39494ce83a213fffba74279579268"), new(big.Int), new(big.Int), new(big.Int), nil),
@ -147,9 +175,10 @@ func TestPendingTxFilter(t *testing.T) {
time.Sleep(1 * time.Second)
for _, tx := range transactions {
ev := core.TxPreEvent{Tx: tx}
mux.Post(ev)
txFeed.Send(ev)
}
timeout := time.Now().Add(1 * time.Second)
for {
results, err := api.GetFilterChanges(fid0)
if err != nil {
@ -161,10 +190,18 @@ func TestPendingTxFilter(t *testing.T) {
if len(hashes) >= len(transactions) {
break
}
// check timeout
if time.Now().After(timeout) {
break
}
time.Sleep(100 * time.Millisecond)
}
if len(hashes) != len(transactions) {
t.Errorf("invalid number of transactions, want %d transactions(s), got %d", len(transactions), len(hashes))
return
}
for i := range hashes {
if hashes[i] != transactions[i].Hash() {
t.Errorf("hashes[%d] invalid, want %x, got %x", i, transactions[i].Hash(), hashes[i])
@ -176,10 +213,14 @@ func TestPendingTxFilter(t *testing.T) {
// If not it must return an error.
func TestLogFilterCreation(t *testing.T) {
var (
mux = new(event.TypeMux)
db, _ = ethdb.NewMemDatabase()
backend = &testBackend{mux, db}
api = NewPublicFilterAPI(backend, false)
mux = new(event.TypeMux)
db, _ = ethdb.NewMemDatabase()
txFeed = new(event.Feed)
rmLogsFeed = new(event.Feed)
logsFeed = new(event.Feed)
chainFeed = new(event.Feed)
backend = &testBackend{mux, db, txFeed, rmLogsFeed, logsFeed, chainFeed}
api = NewPublicFilterAPI(backend, false)
testCases = []struct {
crit FilterCriteria
@ -221,10 +262,14 @@ func TestInvalidLogFilterCreation(t *testing.T) {
t.Parallel()
var (
mux = new(event.TypeMux)
db, _ = ethdb.NewMemDatabase()
backend = &testBackend{mux, db}
api = NewPublicFilterAPI(backend, false)
mux = new(event.TypeMux)
db, _ = ethdb.NewMemDatabase()
txFeed = new(event.Feed)
rmLogsFeed = new(event.Feed)
logsFeed = new(event.Feed)
chainFeed = new(event.Feed)
backend = &testBackend{mux, db, txFeed, rmLogsFeed, logsFeed, chainFeed}
api = NewPublicFilterAPI(backend, false)
)
// different situations where log filter creation should fail.
@ -242,15 +287,19 @@ func TestInvalidLogFilterCreation(t *testing.T) {
}
}
// TestLogFilter tests whether log filters match the correct logs that are posted to the event mux.
// TestLogFilter tests whether log filters match the correct logs that are posted to the event feed.
func TestLogFilter(t *testing.T) {
t.Parallel()
var (
mux = new(event.TypeMux)
db, _ = ethdb.NewMemDatabase()
backend = &testBackend{mux, db}
api = NewPublicFilterAPI(backend, false)
mux = new(event.TypeMux)
db, _ = ethdb.NewMemDatabase()
txFeed = new(event.Feed)
rmLogsFeed = new(event.Feed)
logsFeed = new(event.Feed)
chainFeed = new(event.Feed)
backend = &testBackend{mux, db, txFeed, rmLogsFeed, logsFeed, chainFeed}
api = NewPublicFilterAPI(backend, false)
firstAddr = common.HexToAddress("0x1111111111111111111111111111111111111111")
secondAddr = common.HexToAddress("0x2222222222222222222222222222222222222222")
@ -311,8 +360,8 @@ func TestLogFilter(t *testing.T) {
// raise events
time.Sleep(1 * time.Second)
if err := mux.Post(allLogs); err != nil {
t.Fatal(err)
if nsend := logsFeed.Send(allLogs); nsend == 0 {
t.Fatal("Shoud have at least one subscription")
}
if err := mux.Post(core.PendingLogsEvent{Logs: allLogs}); err != nil {
t.Fatal(err)
@ -320,6 +369,7 @@ func TestLogFilter(t *testing.T) {
for i, tt := range testCases {
var fetched []*types.Log
timeout := time.Now().Add(1 * time.Second)
for { // fetch all expected logs
results, err := api.GetFilterChanges(tt.id)
if err != nil {
@ -330,6 +380,10 @@ func TestLogFilter(t *testing.T) {
if len(fetched) >= len(tt.expected) {
break
}
// check timeout
if time.Now().After(timeout) {
break
}
time.Sleep(100 * time.Millisecond)
}
@ -350,15 +404,19 @@ func TestLogFilter(t *testing.T) {
}
}
// TestPendingLogsSubscription tests if a subscription receives the correct pending logs that are posted to the event mux.
// TestPendingLogsSubscription tests if a subscription receives the correct pending logs that are posted to the event feed.
func TestPendingLogsSubscription(t *testing.T) {
t.Parallel()
var (
mux = new(event.TypeMux)
db, _ = ethdb.NewMemDatabase()
backend = &testBackend{mux, db}
api = NewPublicFilterAPI(backend, false)
mux = new(event.TypeMux)
db, _ = ethdb.NewMemDatabase()
txFeed = new(event.Feed)
rmLogsFeed = new(event.Feed)
logsFeed = new(event.Feed)
chainFeed = new(event.Feed)
backend = &testBackend{mux, db, txFeed, rmLogsFeed, logsFeed, chainFeed}
api = NewPublicFilterAPI(backend, false)
firstAddr = common.HexToAddress("0x1111111111111111111111111111111111111111")
secondAddr = common.HexToAddress("0x2222222222222222222222222222222222222222")
@ -456,6 +514,7 @@ func TestPendingLogsSubscription(t *testing.T) {
// raise events
time.Sleep(1 * time.Second)
// allLogs are type of core.PendingLogsEvent
for _, l := range allLogs {
if err := mux.Post(l); err != nil {
t.Fatal(err)

34
eth/filters/filter_test.go
View File

@ -49,14 +49,18 @@ func BenchmarkMipmaps(b *testing.B) {
defer os.RemoveAll(dir)
var (
db, _ = ethdb.NewLDBDatabase(dir, 0, 0)
mux = new(event.TypeMux)
backend = &testBackend{mux, db}
key1, _ = crypto.HexToECDSA("b71c71a67e1177ad4e901695e1b4b9ee17ae16c6668d313eac2f96dbcda3f291")
addr1 = crypto.PubkeyToAddress(key1.PublicKey)
addr2 = common.BytesToAddress([]byte("jeff"))
addr3 = common.BytesToAddress([]byte("ethereum"))
addr4 = common.BytesToAddress([]byte("random addresses please"))
db, _ = ethdb.NewLDBDatabase(dir, 0, 0)
mux = new(event.TypeMux)
txFeed = new(event.Feed)
rmLogsFeed = new(event.Feed)
logsFeed = new(event.Feed)
chainFeed = new(event.Feed)
backend = &testBackend{mux, db, txFeed, rmLogsFeed, logsFeed, chainFeed}
key1, _ = crypto.HexToECDSA("b71c71a67e1177ad4e901695e1b4b9ee17ae16c6668d313eac2f96dbcda3f291")
addr1 = crypto.PubkeyToAddress(key1.PublicKey)
addr2 = common.BytesToAddress([]byte("jeff"))
addr3 = common.BytesToAddress([]byte("ethereum"))
addr4 = common.BytesToAddress([]byte("random addresses please"))
)
defer db.Close()
@ -119,11 +123,15 @@ func TestFilters(t *testing.T) {
defer os.RemoveAll(dir)
var (
db, _ = ethdb.NewLDBDatabase(dir, 0, 0)
mux = new(event.TypeMux)
backend = &testBackend{mux, db}
key1, _ = crypto.HexToECDSA("b71c71a67e1177ad4e901695e1b4b9ee17ae16c6668d313eac2f96dbcda3f291")
addr = crypto.PubkeyToAddress(key1.PublicKey)
db, _ = ethdb.NewLDBDatabase(dir, 0, 0)
mux = new(event.TypeMux)
txFeed = new(event.Feed)
rmLogsFeed = new(event.Feed)
logsFeed = new(event.Feed)
chainFeed = new(event.Feed)
backend = &testBackend{mux, db, txFeed, rmLogsFeed, logsFeed, chainFeed}
key1, _ = crypto.HexToECDSA("b71c71a67e1177ad4e901695e1b4b9ee17ae16c6668d313eac2f96dbcda3f291")
addr = crypto.PubkeyToAddress(key1.PublicKey)
hash1 = common.BytesToHash([]byte("topic1"))
hash2 = common.BytesToHash([]byte("topic2"))

23
eth/handler.go
View File

@ -45,6 +45,10 @@ import (
const (
softResponseLimit = 2 * 1024 * 1024 // Target maximum size of returned blocks, headers or node data.
estHeaderRlpSize = 500 // Approximate size of an RLP encoded block header
// txChanSize is the size of channel listening to TxPreEvent.
// The number is referenced from the size of tx pool.
txChanSize = 4096
)
var (
@ -78,7 +82,8 @@ type ProtocolManager struct {
SubProtocols []p2p.Protocol
eventMux *event.TypeMux
txSub *event.TypeMuxSubscription
txCh chan core.TxPreEvent
txSub event.Subscription
minedBlockSub *event.TypeMuxSubscription
// channels for fetcher, syncer, txsyncLoop
@ -200,7 +205,8 @@ func (pm *ProtocolManager) removePeer(id string) {
func (pm *ProtocolManager) Start() {
// broadcast transactions
pm.txSub = pm.eventMux.Subscribe(core.TxPreEvent{})
pm.txCh = make(chan core.TxPreEvent, txChanSize)
pm.txSub = pm.txpool.SubscribeTxPreEvent(pm.txCh)
go pm.txBroadcastLoop()
// broadcast mined blocks
pm.minedBlockSub = pm.eventMux.Subscribe(core.NewMinedBlockEvent{})
@ -724,10 +730,15 @@ func (self *ProtocolManager) minedBroadcastLoop() {
}
func (self *ProtocolManager) txBroadcastLoop() {
// automatically stops if unsubscribe
for obj := range self.txSub.Chan() {
event := obj.Data.(core.TxPreEvent)
self.BroadcastTx(event.Tx.Hash(), event.Tx)
for {
select {
case event := <-self.txCh:
self.BroadcastTx(event.Tx.Hash(), event.Tx)
// Err() channel will be closed when unsubscribing.
case <-self.txSub.Err():
return
}
}
}

2
eth/handler_test.go
View File

@ -474,7 +474,7 @@ func testDAOChallenge(t *testing.T, localForked, remoteForked bool, timeout bool
config = &params.ChainConfig{DAOForkBlock: big.NewInt(1), DAOForkSupport: localForked}
gspec = &core.Genesis{Config: config}
genesis = gspec.MustCommit(db)
blockchain, _ = core.NewBlockChain(db, config, pow, evmux, vm.Config{})
blockchain, _ = core.NewBlockChain(db, config, pow, vm.Config{})
)
pm, err := NewProtocolManager(config, downloader.FullSync, DefaultConfig.NetworkId, 1000, evmux, new(testTxPool), pow, blockchain, db)
if err != nil {

11
eth/helper_test.go
View File

@ -59,7 +59,7 @@ func newTestProtocolManager(mode downloader.SyncMode, blocks int, generator func
Alloc: core.GenesisAlloc{testBank: {Balance: big.NewInt(1000000)}},
}
genesis = gspec.MustCommit(db)
blockchain, _ = core.NewBlockChain(db, gspec.Config, engine, evmux, vm.Config{})
blockchain, _ = core.NewBlockChain(db, gspec.Config, engine, vm.Config{})
)
chain, _ := core.GenerateChain(gspec.Config, genesis, db, blocks, generator)
if _, err := blockchain.InsertChain(chain); err != nil {
@ -88,8 +88,9 @@ func newTestProtocolManagerMust(t *testing.T, mode downloader.SyncMode, blocks i
// testTxPool is a fake, helper transaction pool for testing purposes
type testTxPool struct {
pool []*types.Transaction // Collection of all transactions
added chan<- []*types.Transaction // Notification channel for new transactions
txFeed event.Feed
pool []*types.Transaction // Collection of all transactions
added chan<- []*types.Transaction // Notification channel for new transactions
lock sync.RWMutex // Protects the transaction pool
}
@ -124,6 +125,10 @@ func (p *testTxPool) Pending() (map[common.Address]types.Transactions, error) {
return batches, nil
}
func (p *testTxPool) SubscribeTxPreEvent(ch chan<- core.TxPreEvent) event.Subscription {
return p.txFeed.Subscribe(ch)
}
// newTestTransaction create a new dummy transaction.
func newTestTransaction(from *ecdsa.PrivateKey, nonce uint64, datasize int) *types.Transaction {
tx := types.NewTransaction(nonce, common.Address{}, big.NewInt(0), big.NewInt(100000), big.NewInt(0), make([]byte, datasize))

6
eth/protocol.go
View File

@ -22,7 +22,9 @@ import (
"math/big"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/event"
"github.com/ethereum/go-ethereum/rlp"
)
@ -100,6 +102,10 @@ type txPool interface {
// Pending should return pending transactions.
// The slice should be modifiable by the caller.
Pending() (map[common.Address]types.Transactions, error)
// SubscribeTxPreEvent should return an event subscription of
// TxPreEvent and send events to the given channel.
SubscribeTxPreEvent(chan<- core.TxPreEvent) event.Subscription
}
// statusData is the network packet for the status message.

63
ethstats/ethstats.go
View File

@ -44,9 +44,27 @@ import (
"golang.org/x/net/websocket"
)
// historyUpdateRange is the number of blocks a node should report upon login or
// history request.
const historyUpdateRange = 50
const (
// historyUpdateRange is the number of blocks a node should report upon login or
// history request.
historyUpdateRange = 50
// txChanSize is the size of channel listening to TxPreEvent.
// The number is referenced from the size of tx pool.
txChanSize = 4096
// chainHeadChanSize is the size of channel listening to ChainHeadEvent.
chainHeadChanSize = 10
)
type txPool interface {
// SubscribeTxPreEvent should return an event subscription of
// TxPreEvent and send events to the given channel.
SubscribeTxPreEvent(chan<- core.TxPreEvent) event.Subscription
}
type blockChain interface {
SubscribeChainHeadEvent(ch chan<- core.ChainHeadEvent) event.Subscription
}
// Service implements an Ethereum netstats reporting daemon that pushes local
// chain statistics up to a monitoring server.
@ -118,16 +136,22 @@ func (s *Service) Stop() error {
// until termination.
func (s *Service) loop() {
// Subscribe to chain events to execute updates on
var emux *event.TypeMux
var blockchain blockChain
var txpool txPool
if s.eth != nil {
emux = s.eth.EventMux()
blockchain = s.eth.BlockChain()
txpool = s.eth.TxPool()
} else {
emux = s.les.EventMux()
blockchain = s.les.BlockChain()
txpool = s.les.TxPool()
}
headSub := emux.Subscribe(core.ChainHeadEvent{})
chainHeadCh := make(chan core.ChainHeadEvent, chainHeadChanSize)
headSub := blockchain.SubscribeChainHeadEvent(chainHeadCh)
defer headSub.Unsubscribe()
txSub := emux.Subscribe(core.TxPreEvent{})
txEventCh := make(chan core.TxPreEvent, txChanSize)
txSub := txpool.SubscribeTxPreEvent(txEventCh)
defer txSub.Unsubscribe()
// Start a goroutine that exhausts the subsciptions to avoid events piling up
@ -139,25 +163,18 @@ func (s *Service) loop() {
go func() {
var lastTx mclock.AbsTime
HandleLoop:
for {
select {
// Notify of chain head events, but drop if too frequent
case head, ok := <-headSub.Chan():
if !ok { // node stopped
close(quitCh)
return
}
case head := <-chainHeadCh:
select {
case headCh <- head.Data.(core.ChainHeadEvent).Block:
case headCh <- head.Block:
default:
}
// Notify of new transaction events, but drop if too frequent
case _, ok := <-txSub.Chan():
if !ok { // node stopped
close(quitCh)
return
}
case <-txEventCh:
if time.Duration(mclock.Now()-lastTx) < time.Second {
continue
}
@ -167,8 +184,16 @@ func (s *Service) loop() {
case txCh <- struct{}{}:
default:
}
// node stopped
case <-txSub.Err():
break HandleLoop
case <-headSub.Err():
break HandleLoop
}
}
close(quitCh)
return
}()
// Loop reporting until termination
for {

4
internal/ethapi/backend.go
View File

@ -53,6 +53,9 @@ type Backend interface {
GetReceipts(ctx context.Context, blockHash common.Hash) (types.Receipts, error)
GetTd(blockHash common.Hash) *big.Int
GetEVM(ctx context.Context, msg core.Message, state *state.StateDB, header *types.Header, vmCfg vm.Config) (*vm.EVM, func() error, error)
SubscribeChainEvent(ch chan<- core.ChainEvent) event.Subscription
SubscribeChainHeadEvent(ch chan<- core.ChainHeadEvent) event.Subscription
SubscribeChainSideEvent(ch chan<- core.ChainSideEvent) event.Subscription
// TxPool API
SendTx(ctx context.Context, signedTx *types.Transaction) error
@ -62,6 +65,7 @@ type Backend interface {
GetPoolNonce(ctx context.Context, addr common.Address) (uint64, error)
Stats() (pending int, queued int)
TxPoolContent() (map[common.Address]types.Transactions, map[common.Address]types.Transactions)
SubscribeTxPreEvent(chan<- core.TxPreEvent) event.Subscription
ChainConfig() *params.ChainConfig
CurrentBlock() *types.Block

24
les/api_backend.go
View File

@ -124,6 +124,30 @@ func (b *LesApiBackend) TxPoolContent() (map[common.Address]types.Transactions,
return b.eth.txPool.Content()
}
func (b *LesApiBackend) SubscribeTxPreEvent(ch chan<- core.TxPreEvent) event.Subscription {
return b.eth.txPool.SubscribeTxPreEvent(ch)
}
func (b *LesApiBackend) SubscribeChainEvent(ch chan<- core.ChainEvent) event.Subscription {
return b.eth.blockchain.SubscribeChainEvent(ch)
}
func (b *LesApiBackend) SubscribeChainHeadEvent(ch chan<- core.ChainHeadEvent) event.Subscription {
return b.eth.blockchain.SubscribeChainHeadEvent(ch)
}
func (b *LesApiBackend) SubscribeChainSideEvent(ch chan<- core.ChainSideEvent) event.Subscription {
return b.eth.blockchain.SubscribeChainSideEvent(ch)
}
func (b *LesApiBackend) SubscribeLogsEvent(ch chan<- []*types.Log) event.Subscription {
return b.eth.blockchain.SubscribeLogsEvent(ch)
}
func (b *LesApiBackend) SubscribeRemovedLogsEvent(ch chan<- core.RemovedLogsEvent) event.Subscription {
return b.eth.blockchain.SubscribeRemovedLogsEvent(ch)
}
func (b *LesApiBackend) Downloader() *downloader.Downloader {
return b.eth.Downloader()
}

4
les/backend.go
View File

@ -103,7 +103,7 @@ func New(ctx *node.ServiceContext, config *eth.Config) (*LightEthereum, error) {
eth.serverPool = newServerPool(chainDb, quitSync, &eth.wg)
eth.retriever = newRetrieveManager(peers, eth.reqDist, eth.serverPool)
eth.odr = NewLesOdr(chainDb, eth.retriever)
if eth.blockchain, err = light.NewLightChain(eth.odr, eth.chainConfig, eth.engine, eth.eventMux); err != nil {
if eth.blockchain, err = light.NewLightChain(eth.odr, eth.chainConfig, eth.engine); err != nil {
return nil, err
}
// Rewind the chain in case of an incompatible config upgrade.
@ -113,7 +113,7 @@ func New(ctx *node.ServiceContext, config *eth.Config) (*LightEthereum, error) {
core.WriteChainConfig(chainDb, genesisHash, chainConfig)
}
eth.txPool = light.NewTxPool(eth.chainConfig, eth.eventMux, eth.blockchain, eth.relay)
eth.txPool = light.NewTxPool(eth.chainConfig, eth.blockchain, eth.relay)
if eth.protocolManager, err = NewProtocolManager(eth.chainConfig, true, config.NetworkId, eth.eventMux, eth.engine, eth.peers, eth.blockchain, nil, chainDb, eth.odr, eth.relay, quitSync, &eth.wg); err != nil {
return nil, err
}

1
les/handler.go
View File

@ -82,6 +82,7 @@ type BlockChain interface {
GetBlockHashesFromHash(hash common.Hash, max uint64) []common.Hash
LastBlockHash() common.Hash
Genesis() *types.Block
SubscribeChainHeadEvent(ch chan<- core.ChainHeadEvent) event.Subscription
}
type txPool interface {

4
les/helper_test.go
View File

@ -146,9 +146,9 @@ func newTestProtocolManager(lightSync bool, blocks int, generator func(int, *cor
}
if lightSync {
chain, _ = light.NewLightChain(odr, gspec.Config, engine, evmux)
chain, _ = light.NewLightChain(odr, gspec.Config, engine)
} else {
blockchain, _ := core.NewBlockChain(db, gspec.Config, engine, evmux, vm.Config{})
blockchain, _ := core.NewBlockChain(db, gspec.Config, engine, vm.Config{})
gchain, _ := core.GenerateChain(gspec.Config, genesis, db, blocks, generator)
if _, err := blockchain.InsertChain(gchain); err != nil {
panic(err)

9
les/server.go
View File

@ -271,7 +271,8 @@ func (s *requestCostStats) update(msgCode, reqCnt, cost uint64) {
func (pm *ProtocolManager) blockLoop() {
pm.wg.Add(1)
sub := pm.eventMux.Subscribe(core.ChainHeadEvent{})
headCh := make(chan core.ChainHeadEvent, 10)
headSub := pm.blockchain.SubscribeChainHeadEvent(headCh)
newCht := make(chan struct{}, 10)
newCht <- struct{}{}
go func() {
@ -280,10 +281,10 @@ func (pm *ProtocolManager) blockLoop() {
lastBroadcastTd := common.Big0
for {
select {
case ev := <-sub.Chan():
case ev := <-headCh:
peers := pm.peers.AllPeers()
if len(peers) > 0 {
header := ev.Data.(core.ChainHeadEvent).Block.Header()
header := ev.Block.Header()
hash := header.Hash()
number := header.Number.Uint64()
td := core.GetTd(pm.chainDb, hash, number)
@ -319,7 +320,7 @@ func (pm *ProtocolManager) blockLoop() {
}
}()
case <-pm.quitSync:
sub.Unsubscribe()
headSub.Unsubscribe()
pm.wg.Done()
return
}

57
light/lightchain.go
View File

@ -44,11 +44,14 @@ var (
// headers, downloading block bodies and receipts on demand through an ODR
// interface. It only does header validation during chain insertion.
type LightChain struct {
hc *core.HeaderChain
chainDb ethdb.Database
odr OdrBackend
eventMux *event.TypeMux
genesisBlock *types.Block
hc *core.HeaderChain
chainDb ethdb.Database
odr OdrBackend
chainFeed event.Feed
chainSideFeed event.Feed
chainHeadFeed event.Feed
scope event.SubscriptionScope
genesisBlock *types.Block
mu sync.RWMutex
chainmu sync.RWMutex
@ -69,7 +72,7 @@ type LightChain struct {
// NewLightChain returns a fully initialised light chain using information
// available in the database. It initialises the default Ethereum header
// validator.
func NewLightChain(odr OdrBackend, config *params.ChainConfig, engine consensus.Engine, mux *event.TypeMux) (*LightChain, error) {
func NewLightChain(odr OdrBackend, config *params.ChainConfig, engine consensus.Engine) (*LightChain, error) {
bodyCache, _ := lru.New(bodyCacheLimit)
bodyRLPCache, _ := lru.New(bodyCacheLimit)
blockCache, _ := lru.New(blockCacheLimit)
@ -77,7 +80,6 @@ func NewLightChain(odr OdrBackend, config *params.ChainConfig, engine consensus.
bc := &LightChain{
chainDb: odr.Database(),
odr: odr,
eventMux: mux,
quit: make(chan struct{}),
bodyCache: bodyCache,
bodyRLPCache: bodyRLPCache,
@ -316,16 +318,18 @@ func (self *LightChain) Rollback(chain []common.Hash) {
}
// postChainEvents iterates over the events generated by a chain insertion and
// posts them into the event mux.
// posts them into the event feed.
func (self *LightChain) postChainEvents(events []interface{}) {
for _, event := range events {
if event, ok := event.(core.ChainEvent); ok {
if self.LastBlockHash() == event.Hash {
self.eventMux.Post(core.ChainHeadEvent{Block: event.Block})
switch ev := event.(type) {
case core.ChainEvent:
if self.LastBlockHash() == ev.Hash {
self.chainHeadFeed.Send(core.ChainHeadEvent{Block: ev.Block})
}
self.chainFeed.Send(ev)
case core.ChainSideEvent:
self.chainSideFeed.Send(ev)
}
// Fire the insertion events individually too
self.eventMux.Post(event)
}
}
@ -467,3 +471,30 @@ func (self *LightChain) LockChain() {
func (self *LightChain) UnlockChain() {
self.chainmu.RUnlock()
}
// SubscribeChainEvent registers a subscription of ChainEvent.
func (self *LightChain) SubscribeChainEvent(ch chan<- core.ChainEvent) event.Subscription {
return self.scope.Track(self.chainFeed.Subscribe(ch))
}
// SubscribeChainHeadEvent registers a subscription of ChainHeadEvent.
func (self *LightChain) SubscribeChainHeadEvent(ch chan<- core.ChainHeadEvent) event.Subscription {
return self.scope.Track(self.chainHeadFeed.Subscribe(ch))
}
// SubscribeChainSideEvent registers a subscription of ChainSideEvent.
func (self *LightChain) SubscribeChainSideEvent(ch chan<- core.ChainSideEvent) event.Subscription {
return self.scope.Track(self.chainSideFeed.Subscribe(ch))
}
// SubscribeLogsEvent implements the interface of filters.Backend
// LightChain does not send logs events, so return an empty subscription.
func (self *LightChain) SubscribeLogsEvent(ch chan<- []*types.Log) event.Subscription {
return self.scope.Track(new(event.Feed).Subscribe(ch))
}
// SubscribeRemovedLogsEvent implements the interface of filters.Backend
// LightChain does not send core.RemovedLogsEvent, so return an empty subscription.
func (self *LightChain) SubscribeRemovedLogsEvent(ch chan<- core.RemovedLogsEvent) event.Subscription {
return self.scope.Track(new(event.Feed).Subscribe(ch))
}

7
light/lightchain_test.go
View File

@ -26,7 +26,6 @@ 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/params"
)
@ -55,7 +54,7 @@ func newCanonical(n int) (ethdb.Database, *LightChain, error) {
db, _ := ethdb.NewMemDatabase()
gspec := core.Genesis{Config: params.TestChainConfig}
genesis := gspec.MustCommit(db)
blockchain, _ := NewLightChain(&dummyOdr{db: db}, gspec.Config, ethash.NewFaker(), new(event.TypeMux))
blockchain, _ := NewLightChain(&dummyOdr{db: db}, gspec.Config, ethash.NewFaker())
// Create and inject the requested chain
if n == 0 {
@ -75,7 +74,7 @@ func newTestLightChain() *LightChain {
Config: params.TestChainConfig,
}
gspec.MustCommit(db)
lc, err := NewLightChain(&dummyOdr{db: db}, gspec.Config, ethash.NewFullFaker(), new(event.TypeMux))
lc, err := NewLightChain(&dummyOdr{db: db}, gspec.Config, ethash.NewFullFaker())
if err != nil {
panic(err)
}
@ -339,7 +338,7 @@ func TestReorgBadHeaderHashes(t *testing.T) {
defer func() { delete(core.BadHashes, headers[3].Hash()) }()
// Create a new LightChain and check that it rolled back the state.
ncm, err := NewLightChain(&dummyOdr{db: bc.chainDb}, params.TestChainConfig, ethash.NewFaker(), new(event.TypeMux))
ncm, err := NewLightChain(&dummyOdr{db: bc.chainDb}, params.TestChainConfig, ethash.NewFaker())
if err != nil {
t.Fatalf("failed to create new chain manager: %v", err)
}

6
light/odr_test.go
View File

@ -33,7 +33,6 @@ import (
"github.com/ethereum/go-ethereum/core/vm"
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/ethdb"
"github.com/ethereum/go-ethereum/event"
"github.com/ethereum/go-ethereum/params"
"github.com/ethereum/go-ethereum/rlp"
"github.com/ethereum/go-ethereum/trie"
@ -233,7 +232,6 @@ func testChainGen(i int, block *core.BlockGen) {
func testChainOdr(t *testing.T, protocol int, fn odrTestFn) {
var (
evmux = new(event.TypeMux)
sdb, _ = ethdb.NewMemDatabase()
ldb, _ = ethdb.NewMemDatabase()
gspec = core.Genesis{Alloc: core.GenesisAlloc{testBankAddress: {Balance: testBankFunds}}}
@ -241,14 +239,14 @@ func testChainOdr(t *testing.T, protocol int, fn odrTestFn) {
)
gspec.MustCommit(ldb)
// Assemble the test environment
blockchain, _ := core.NewBlockChain(sdb, params.TestChainConfig, ethash.NewFullFaker(), evmux, vm.Config{})
blockchain, _ := core.NewBlockChain(sdb, params.TestChainConfig, ethash.NewFullFaker(), vm.Config{})
gchain, _ := core.GenerateChain(params.TestChainConfig, genesis, sdb, 4, testChainGen)
if _, err := blockchain.InsertChain(gchain); err != nil {
t.Fatal(err)
}
odr := &testOdr{sdb: sdb, ldb: ldb}
lightchain, err := NewLightChain(odr, params.TestChainConfig, ethash.NewFullFaker(), evmux)
lightchain, err := NewLightChain(odr, params.TestChainConfig, ethash.NewFullFaker())
if err != nil {
t.Fatal(err)
}

3
light/trie_test.go
View File

@ -28,7 +28,6 @@ import (
"github.com/ethereum/go-ethereum/core/state"
"github.com/ethereum/go-ethereum/core/vm"
"github.com/ethereum/go-ethereum/ethdb"
"github.com/ethereum/go-ethereum/event"
"github.com/ethereum/go-ethereum/params"
"github.com/ethereum/go-ethereum/trie"
)
@ -41,7 +40,7 @@ func TestNodeIterator(t *testing.T) {
genesis = gspec.MustCommit(fulldb)
)
gspec.MustCommit(lightdb)
blockchain, _ := core.NewBlockChain(fulldb, params.TestChainConfig, ethash.NewFullFaker(), new(event.TypeMux), vm.Config{})
blockchain, _ := core.NewBlockChain(fulldb, params.TestChainConfig, ethash.NewFullFaker(), vm.Config{})
gchain, _ := core.GenerateChain(params.TestChainConfig, genesis, fulldb, 4, testChainGen)
if _, err := blockchain.InsertChain(gchain); err != nil {
panic(err)

93
light/txpool.go
View File

@ -33,6 +33,11 @@ import (
"github.com/ethereum/go-ethereum/rlp"
)
const (
// chainHeadChanSize is the size of channel listening to ChainHeadEvent.
chainHeadChanSize = 10
)
// txPermanent is the number of mined blocks after a mined transaction is
// considered permanent and no rollback is expected
var txPermanent = uint64(500)
@ -43,21 +48,23 @@ var txPermanent = uint64(500)
// always receive all locally signed transactions in the same order as they are
// created.
type TxPool struct {
config *params.ChainConfig
signer types.Signer
quit chan bool
eventMux *event.TypeMux
events *event.TypeMuxSubscription
mu sync.RWMutex
chain *LightChain
odr OdrBackend
chainDb ethdb.Database
relay TxRelayBackend
head common.Hash
nonce map[common.Address]uint64 // "pending" nonce
pending map[common.Hash]*types.Transaction // pending transactions by tx hash
mined map[common.Hash][]*types.Transaction // mined transactions by block hash
clearIdx uint64 // earliest block nr that can contain mined tx info
config *params.ChainConfig
signer types.Signer
quit chan bool
txFeed event.Feed
scope event.SubscriptionScope
chainHeadCh chan core.ChainHeadEvent
chainHeadSub event.Subscription
mu sync.RWMutex
chain *LightChain
odr OdrBackend
chainDb ethdb.Database
relay TxRelayBackend
head common.Hash
nonce map[common.Address]uint64 // "pending" nonce
pending map[common.Hash]*types.Transaction // pending transactions by tx hash
mined map[common.Hash][]*types.Transaction // mined transactions by block hash
clearIdx uint64 // earliest block nr that can contain mined tx info
homestead bool
}
@ -78,23 +85,24 @@ type TxRelayBackend interface {
}
// NewTxPool creates a new light transaction pool
func NewTxPool(config *params.ChainConfig, eventMux *event.TypeMux, chain *LightChain, relay TxRelayBackend) *TxPool {
func NewTxPool(config *params.ChainConfig, chain *LightChain, relay TxRelayBackend) *TxPool {
pool := &TxPool{
config: config,
signer: types.NewEIP155Signer(config.ChainId),
nonce: make(map[common.Address]uint64),
pending: make(map[common.Hash]*types.Transaction),
mined: make(map[common.Hash][]*types.Transaction),
quit: make(chan bool),
eventMux: eventMux,
events: eventMux.Subscribe(core.ChainHeadEvent{}),
chain: chain,
relay: relay,
odr: chain.Odr(),
chainDb: chain.Odr().Database(),
head: chain.CurrentHeader().Hash(),
clearIdx: chain.CurrentHeader().Number.Uint64(),
config: config,
signer: types.NewEIP155Signer(config.ChainId),
nonce: make(map[common.Address]uint64),
pending: make(map[common.Hash]*types.Transaction),
mined: make(map[common.Hash][]*types.Transaction),
quit: make(chan bool),
chainHeadCh: make(chan core.ChainHeadEvent, chainHeadChanSize),
chain: chain,
relay: relay,
odr: chain.Odr(),
chainDb: chain.Odr().Database(),
head: chain.CurrentHeader().Hash(),
clearIdx: chain.CurrentHeader().Number.Uint64(),
}
// Subscribe events from blockchain
pool.chainHeadSub = pool.chain.SubscribeChainHeadEvent(pool.chainHeadCh)
go pool.eventLoop()
return pool
@ -274,13 +282,17 @@ const blockCheckTimeout = time.Second * 3
// eventLoop processes chain head events and also notifies the tx relay backend
// about the new head hash and tx state changes
func (pool *TxPool) eventLoop() {
for ev := range pool.events.Chan() {
switch ev.Data.(type) {
case core.ChainHeadEvent:
pool.setNewHead(ev.Data.(core.ChainHeadEvent).Block.Header())
for {
select {
case ev := <-pool.chainHeadCh:
pool.setNewHead(ev.Block.Header())
// hack in order to avoid hogging the lock; this part will
// be replaced by a subsequent PR.
time.Sleep(time.Millisecond)
// System stopped
case <-pool.chainHeadSub.Err():
return
}
}
}
@ -301,11 +313,20 @@ func (pool *TxPool) setNewHead(head *types.Header) {
// Stop stops the light transaction pool
func (pool *TxPool) Stop() {
// Unsubscribe all subscriptions registered from txpool
pool.scope.Close()
// Unsubscribe subscriptions registered from blockchain
pool.chainHeadSub.Unsubscribe()
close(pool.quit)
pool.events.Unsubscribe()
log.Info("Transaction pool stopped")
}
// SubscribeTxPreEvent registers a subscription of core.TxPreEvent and
// starts sending event to the given channel.
func (pool *TxPool) SubscribeTxPreEvent(ch chan<- core.TxPreEvent) event.Subscription {
return pool.scope.Track(pool.txFeed.Subscribe(ch))
}
// Stats returns the number of currently pending (locally created) transactions
func (pool *TxPool) Stats() (pending int) {
pool.mu.RLock()
@ -388,7 +409,7 @@ func (self *TxPool) add(ctx context.Context, tx *types.Transaction) error {
// Notify the subscribers. This event is posted in a goroutine
// because it's possible that somewhere during the post "Remove transaction"
// gets called which will then wait for the global tx pool lock and deadlock.
go self.eventMux.Post(core.TxPreEvent{Tx: tx})
go self.txFeed.Send(core.TxPreEvent{Tx: tx})
}
// Print a log message if low enough level is set

8
light/txpool_test.go
View File

@ -29,7 +29,6 @@ import (
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/core/vm"
"github.com/ethereum/go-ethereum/ethdb"
"github.com/ethereum/go-ethereum/event"
"github.com/ethereum/go-ethereum/params"
)
@ -82,7 +81,6 @@ func TestTxPool(t *testing.T) {
}
var (
evmux = new(event.TypeMux)
sdb, _ = ethdb.NewMemDatabase()
ldb, _ = ethdb.NewMemDatabase()
gspec = core.Genesis{Alloc: core.GenesisAlloc{testBankAddress: {Balance: testBankFunds}}}
@ -90,7 +88,7 @@ func TestTxPool(t *testing.T) {
)
gspec.MustCommit(ldb)
// Assemble the test environment
blockchain, _ := core.NewBlockChain(sdb, params.TestChainConfig, ethash.NewFullFaker(), evmux, vm.Config{})
blockchain, _ := core.NewBlockChain(sdb, params.TestChainConfig, ethash.NewFullFaker(), vm.Config{})
gchain, _ := core.GenerateChain(params.TestChainConfig, genesis, sdb, poolTestBlocks, txPoolTestChainGen)
if _, err := blockchain.InsertChain(gchain); err != nil {
panic(err)
@ -102,9 +100,9 @@ func TestTxPool(t *testing.T) {
discard: make(chan int, 1),
mined: make(chan int, 1),
}
lightchain, _ := NewLightChain(odr, params.TestChainConfig, ethash.NewFullFaker(), evmux)
lightchain, _ := NewLightChain(odr, params.TestChainConfig, ethash.NewFullFaker())
txPermanent = 50
pool := NewTxPool(params.TestChainConfig, evmux, lightchain, relay)
pool := NewTxPool(params.TestChainConfig, lightchain, relay)
ctx, cancel := context.WithTimeout(context.Background(), 1*time.Second)
defer cancel()

68
miner/worker.go
View File

@ -41,6 +41,14 @@ import (
const (
resultQueueSize = 10
miningLogAtDepth = 5
// txChanSize is the size of channel listening to TxPreEvent.
// The number is referenced from the size of tx pool.
txChanSize = 4096
// chainHeadChanSize is the size of channel listening to ChainHeadEvent.
chainHeadChanSize = 10
// chainSideChanSize is the size of channel listening to ChainSideEvent.
chainSideChanSize = 10
)
// Agent can register themself with the worker
@ -87,9 +95,14 @@ type worker struct {
mu sync.Mutex
// update loop
mux *event.TypeMux
events *event.TypeMuxSubscription
wg sync.WaitGroup
mux *event.TypeMux
txCh chan core.TxPreEvent
txSub event.Subscription
chainHeadCh chan core.ChainHeadEvent
chainHeadSub event.Subscription
chainSideCh chan core.ChainSideEvent
chainSideSub event.Subscription
wg sync.WaitGroup
agents map[Agent]struct{}
recv chan *Result
@ -123,6 +136,9 @@ func newWorker(config *params.ChainConfig, engine consensus.Engine, coinbase com
engine: engine,
eth: eth,
mux: mux,
txCh: make(chan core.TxPreEvent, txChanSize),
chainHeadCh: make(chan core.ChainHeadEvent, chainHeadChanSize),
chainSideCh: make(chan core.ChainSideEvent, chainSideChanSize),
chainDb: eth.ChainDb(),
recv: make(chan *Result, resultQueueSize),
chain: eth.BlockChain(),
@ -133,7 +149,11 @@ func newWorker(config *params.ChainConfig, engine consensus.Engine, coinbase com
unconfirmed: newUnconfirmedBlocks(eth.BlockChain(), miningLogAtDepth),
fullValidation: false,
}
worker.events = worker.mux.Subscribe(core.ChainHeadEvent{}, core.ChainSideEvent{}, core.TxPreEvent{})
// Subscribe TxPreEvent for tx pool
worker.txSub = eth.TxPool().SubscribeTxPreEvent(worker.txCh)
// Subscribe events for blockchain
worker.chainHeadSub = eth.BlockChain().SubscribeChainHeadEvent(worker.chainHeadCh)
worker.chainSideSub = eth.BlockChain().SubscribeChainSideEvent(worker.chainSideCh)
go worker.update()
go worker.wait()
@ -225,20 +245,28 @@ func (self *worker) unregister(agent Agent) {
}
func (self *worker) update() {
for event := range self.events.Chan() {
defer self.txSub.Unsubscribe()
defer self.chainHeadSub.Unsubscribe()
defer self.chainSideSub.Unsubscribe()
for {
// A real event arrived, process interesting content
switch ev := event.Data.(type) {
case core.ChainHeadEvent:
select {
// Handle ChainHeadEvent
case <-self.chainHeadCh:
self.commitNewWork()
case core.ChainSideEvent:
// Handle ChainSideEvent
case ev := <-self.chainSideCh:
self.uncleMu.Lock()
self.possibleUncles[ev.Block.Hash()] = ev.Block
self.uncleMu.Unlock()
case core.TxPreEvent:
// Handle TxPreEvent
case ev := <-self.txCh:
// Apply transaction to the pending state if we're not mining
if atomic.LoadInt32(&self.mining) == 0 {
self.currentMu.Lock()
acc, _ := types.Sender(self.current.signer, ev.Tx)
txs := map[common.Address]types.Transactions{acc: {ev.Tx}}
txset := types.NewTransactionsByPriceAndNonce(txs)
@ -246,6 +274,14 @@ func (self *worker) update() {
self.current.commitTransactions(self.mux, txset, self.chain, self.coinbase)
self.currentMu.Unlock()
}
// System stopped
case <-self.txSub.Err():
return
case <-self.chainHeadSub.Err():
return
case <-self.chainSideSub.Err():
return
}
}
}
@ -298,12 +334,18 @@ func (self *worker) wait() {
// broadcast before waiting for validation
go func(block *types.Block, logs []*types.Log, receipts []*types.Receipt) {
self.mux.Post(core.NewMinedBlockEvent{Block: block})
self.mux.Post(core.ChainEvent{Block: block, Hash: block.Hash(), Logs: logs})
var (
events []interface{}
coalescedLogs []*types.Log
)
events = append(events, core.ChainEvent{Block: block, Hash: block.Hash(), Logs: logs})
if stat == core.CanonStatTy {
self.mux.Post(core.ChainHeadEvent{Block: block})
self.mux.Post(logs)
events = append(events, core.ChainHeadEvent{Block: block})
coalescedLogs = logs
}
// post blockchain events
self.chain.PostChainEvents(events, coalescedLogs)
if err := core.WriteBlockReceipts(self.chainDb, block.Hash(), block.NumberU64(), receipts); err != nil {
log.Warn("Failed writing block receipts", "err", err)
}

3
tests/block_test_util.go
View File

@ -33,7 +33,6 @@ import (
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/core/vm"
"github.com/ethereum/go-ethereum/ethdb"
"github.com/ethereum/go-ethereum/event"
"github.com/ethereum/go-ethereum/params"
"github.com/ethereum/go-ethereum/rlp"
)
@ -111,7 +110,7 @@ func (t *BlockTest) Run() error {
return fmt.Errorf("genesis block state root does not match test: computed=%x, test=%x", gblock.Root().Bytes()[:6], t.json.Genesis.StateRoot[:6])
}
chain, err := core.NewBlockChain(db, config, ethash.NewShared(), new(event.TypeMux), vm.Config{})
chain, err := core.NewBlockChain(db, config, ethash.NewShared(), vm.Config{})
if err != nil {
return err
}