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authorJeffrey Wilcke <jeffrey@ethereum.org>2015-06-16 00:09:44 +0800
committerJeffrey Wilcke <jeffrey@ethereum.org>2015-06-16 00:09:44 +0800
commitcc0b451119478ba4a005ec8840573252636f45dc (patch)
treef1e9882b7dea20eab9cd30850224a07bb312f067 /core
parentf2a2164184a9397d8e6100c370595ccdcd00ca0b (diff)
parent2628103f1df35ad6a130f2f41e73c7703bf61886 (diff)
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Merge pull request #1260 from obscuren/tx-drop-low-tx
core: drop low gas tx
Diffstat (limited to 'core')
-rw-r--r--core/chain_manager.go12
-rw-r--r--core/transaction_pool.go34
2 files changed, 32 insertions, 14 deletions
diff --git a/core/chain_manager.go b/core/chain_manager.go
index e56d82cce..c3b7273c2 100644
--- a/core/chain_manager.go
+++ b/core/chain_manager.go
@@ -5,7 +5,6 @@ import (
"fmt"
"io"
"math/big"
- "os"
"runtime"
"sync"
"sync/atomic"
@@ -235,15 +234,8 @@ func (bc *ChainManager) setLastState() {
if block != nil {
bc.currentBlock = block
bc.lastBlockHash = block.Hash()
- } else { // TODO CLEAN THIS UP TMP CODE
- block = bc.GetBlockByNumber(400000)
- if block == nil {
- fmt.Println("Fatal. LastBlock not found. Report this issue")
- os.Exit(1)
- }
- bc.currentBlock = block
- bc.lastBlockHash = block.Hash()
- bc.insert(block)
+ } else {
+ glog.Fatalf("Fatal. LastBlock not found. Please run removedb and resync")
}
} else {
bc.Reset()
diff --git a/core/transaction_pool.go b/core/transaction_pool.go
index 4a0594228..e31f5c6b3 100644
--- a/core/transaction_pool.go
+++ b/core/transaction_pool.go
@@ -19,6 +19,7 @@ var (
// Transaction Pool Errors
ErrInvalidSender = errors.New("Invalid sender")
ErrNonce = errors.New("Nonce too low")
+ ErrCheap = errors.New("Gas price too low for acceptance")
ErrBalance = errors.New("Insufficient balance")
ErrNonExistentAccount = errors.New("Account does not exist or account balance too low")
ErrInsufficientFunds = errors.New("Insufficient funds for gas * price + value")
@@ -27,6 +28,10 @@ var (
ErrNegativeValue = errors.New("Negative value")
)
+const (
+ maxQueued = 200 // max limit of queued txs per address
+)
+
type stateFn func() *state.StateDB
// TxPool contains all currently known transactions. Transactions
@@ -41,6 +46,7 @@ type TxPool struct {
currentState stateFn // The state function which will allow us to do some pre checkes
pendingState *state.ManagedState
gasLimit func() *big.Int // The current gas limit function callback
+ minGasPrice *big.Int
eventMux *event.TypeMux
events event.Subscription
@@ -57,8 +63,9 @@ func NewTxPool(eventMux *event.TypeMux, currentStateFn stateFn, gasLimitFn func(
eventMux: eventMux,
currentState: currentStateFn,
gasLimit: gasLimitFn,
+ minGasPrice: new(big.Int),
pendingState: state.ManageState(currentStateFn()),
- events: eventMux.Subscribe(ChainEvent{}),
+ events: eventMux.Subscribe(ChainEvent{}, GasPriceChanged{}),
}
go pool.eventLoop()
@@ -69,10 +76,15 @@ func (pool *TxPool) eventLoop() {
// Track chain events. When a chain events occurs (new chain canon block)
// we need to know the new state. The new state will help us determine
// the nonces in the managed state
- for _ = range pool.events.Chan() {
+ for ev := range pool.events.Chan() {
pool.mu.Lock()
- pool.resetState()
+ switch ev := ev.(type) {
+ case ChainEvent:
+ pool.resetState()
+ case GasPriceChanged:
+ pool.minGasPrice = ev.Price
+ }
pool.mu.Unlock()
}
@@ -124,6 +136,11 @@ func (pool *TxPool) validateTx(tx *types.Transaction) error {
err error
)
+ // Drop transactions under our own minimal accepted gas price
+ if pool.minGasPrice.Cmp(tx.GasPrice()) > 0 {
+ return ErrCheap
+ }
+
// Validate the transaction sender and it's sig. Throw
// if the from fields is invalid.
if from, err = tx.From(); err != nil {
@@ -335,7 +352,16 @@ func (pool *TxPool) checkQueue() {
// Find the next consecutive nonce range starting at the
// current account nonce.
sort.Sort(addq)
- for _, e := range addq {
+ for i, e := range addq {
+ // start deleting the transactions from the queue if they exceed the limit
+ if i > maxQueued {
+ if glog.V(logger.Debug) {
+ glog.Infof("Queued tx limit exceeded for %s. Tx %s removed\n", common.PP(address[:]), common.PP(e.hash[:]))
+ }
+ delete(pool.queue[address], e.hash)
+ continue
+ }
+
if e.AccountNonce > guessedNonce {
break
}