// NewFilterSystem returns a newly allocated filter manager
func NewFilterSystem(mux *event.TypeMux) *FilterSystem {
fs := &FilterSystem{
filters: make(map[int]*Filter),
created: make(map[int]time.Time),
}
fs.sub = mux.Subscribe(
//core.PendingBlockEvent{},
core.ChainEvent{},
core.TxPreEvent{},
vm.Logs(nil),
)
go fs.filterLoop()
return fs
}
func NewTxPool(eventMux *event.TypeMux, currentStateFn stateFn, gasLimitFn func() *big.Int) *TxPool {
pool := &TxPool{
pending: make(map[common.Hash]*types.Transaction),
queue: make(map[common.Address]map[common.Hash]*types.Transaction),
quit: make(chan bool),
eventMux: eventMux,
currentState: currentStateFn,
gasLimit: gasLimitFn,
minGasPrice: new(big.Int),
pendingState: nil,
events: eventMux.Subscribe(ChainHeadEvent{}, GasPriceChanged{}, RemovedTransactionEvent{}),
}
go pool.eventLoop()
return pool
}
// NewFilterSystem returns a newly allocated filter manager
func NewFilterSystem(mux *event.TypeMux) *FilterSystem {
fs := &FilterSystem{
chainFilters: make(map[int]*Filter),
pendingTxFilters: make(map[int]*Filter),
logFilters: make(map[int]*Filter),
pendingLogFilters: make(map[int]*Filter),
generic: make(map[int]*Filter),
}
fs.sub = mux.Subscribe(
core.PendingLogsEvent{},
core.RemovedLogsEvent{},
core.ChainEvent{},
core.TxPreEvent{},
vm.Logs(nil),
)
go fs.filterLoop()
return fs
}
func (env *Work) commitTransactions(mux *event.TypeMux, transactions types.Transactions, gasPrice *big.Int, bc *core.BlockChain) {
gp := new(core.GasPool).AddGas(env.header.GasLimit)
var coalescedLogs vm.Logs
for _, tx := range transactions {
// Error may be ignored here. The error has already been checked
// during transaction acceptance is the transaction pool.
from, _ := tx.From()
// Check if it falls within margin. Txs from owned accounts are always processed.
if tx.GasPrice().Cmp(gasPrice) < 0 && !env.ownedAccounts.Has(from) {
// ignore the transaction and transactor. We ignore the transactor
// because nonce will fail after ignoring this transaction so there's
// no point
env.lowGasTransactors.Add(from)
glog.V(logger.Info).Infof("transaction(%x) below gas price (tx=%v ask=%v). All sequential txs from this address(%x) will be ignored\n", tx.Hash().Bytes()[:4], common.CurrencyToString(tx.GasPrice()), common.CurrencyToString(gasPrice), from[:4])
}
// Continue with the next transaction if the transaction sender is included in
// the low gas tx set. This will also remove the tx and all sequential transaction
// from this transactor
if env.lowGasTransactors.Has(from) {
// add tx to the low gas set. This will be removed at the end of the run
// owned accounts are ignored
if !env.ownedAccounts.Has(from) {
env.lowGasTxs = append(env.lowGasTxs, tx)
}
continue
}
// Move on to the next transaction when the transactor is in ignored transactions set
// This may occur when a transaction hits the gas limit. When a gas limit is hit and
// the transaction is processed (that could potentially be included in the block) it
// will throw a nonce error because the previous transaction hasn't been processed.
// Therefor we need to ignore any transaction after the ignored one.
if env.ignoredTransactors.Has(from) {
continue
}
env.state.StartRecord(tx.Hash(), common.Hash{}, 0)
err, logs := env.commitTransaction(tx, bc, gp)
switch {
case core.IsGasLimitErr(err):
// ignore the transactor so no nonce errors will be thrown for this account
// next time the worker is run, they'll be picked up again.
env.ignoredTransactors.Add(from)
glog.V(logger.Detail).Infof("Gas limit reached for (%x) in this block. Continue to try smaller txs\n", from[:4])
case err != nil:
env.remove.Add(tx.Hash())
if glog.V(logger.Detail) {
glog.Infof("TX (%x) failed, will be removed: %v\n", tx.Hash().Bytes()[:4], err)
}
default:
env.tcount++
coalescedLogs = append(coalescedLogs, logs...)
}
}
if len(coalescedLogs) > 0 || env.tcount > 0 {
go func(logs vm.Logs, tcount int) {
if len(logs) > 0 {
mux.Post(core.PendingLogsEvent{Logs: logs})
}
if tcount > 0 {
mux.Post(core.PendingStateEvent{})
}
}(coalescedLogs, env.tcount)
}
}
func TestCallbacks(t *testing.T) {
var (
mux event.TypeMux
fs = NewFilterSystem(&mux)
blockDone = make(chan struct{})
txDone = make(chan struct{})
logDone = make(chan struct{})
removedLogDone = make(chan struct{})
pendingLogDone = make(chan struct{})
)
blockFilter := &Filter{
BlockCallback: func(*types.Block, vm.Logs) {
close(blockDone)
},
}
txFilter := &Filter{
TransactionCallback: func(*types.Transaction) {
close(txDone)
},
}
logFilter := &Filter{
LogCallback: func(l *vm.Log, oob bool) {
if !oob {
close(logDone)
}
},
}
removedLogFilter := &Filter{
LogCallback: func(l *vm.Log, oob bool) {
if oob {
close(removedLogDone)
}
},
}
pendingLogFilter := &Filter{
LogCallback: func(*vm.Log, bool) {
close(pendingLogDone)
},
}
fs.Add(blockFilter, ChainFilter)
fs.Add(txFilter, PendingTxFilter)
fs.Add(logFilter, LogFilter)
fs.Add(removedLogFilter, LogFilter)
fs.Add(pendingLogFilter, PendingLogFilter)
mux.Post(core.ChainEvent{})
mux.Post(core.TxPreEvent{})
mux.Post(vm.Logs{&vm.Log{}})
mux.Post(core.RemovedLogsEvent{Logs: vm.Logs{&vm.Log{}}})
mux.Post(core.PendingLogsEvent{Logs: vm.Logs{&vm.Log{}}})
const dura = 5 * time.Second
failTimer := time.NewTimer(dura)
select {
case <-blockDone:
case <-failTimer.C:
t.Error("block filter failed to trigger (timeout)")
}
failTimer.Reset(dura)
select {
case <-txDone:
case <-failTimer.C:
t.Error("transaction filter failed to trigger (timeout)")
}
failTimer.Reset(dura)
select {
case <-logDone:
case <-failTimer.C:
t.Error("log filter failed to trigger (timeout)")
}
failTimer.Reset(dura)
select {
case <-removedLogDone:
case <-failTimer.C:
t.Error("removed log filter failed to trigger (timeout)")
}
failTimer.Reset(dura)
select {
case <-pendingLogDone:
case <-failTimer.C:
t.Error("pending log filter failed to trigger (timeout)")
}
}