Merge pull request #22995 from karalabe/enforce-miner-tip

core, eth, miner: enforce configured mining reward post 1559 too

core/tx_pool.go

@@ -26,6 +26,7 @@ import (
 
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/common/prque"
+	"github.com/ethereum/go-ethereum/consensus/misc"
 	"github.com/ethereum/go-ethereum/core/state"
 	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/event"
@@ -496,13 +497,30 @@ func (pool *TxPool) Content() (map[common.Address]types.Transactions, map[common
 // Pending retrieves all currently processable transactions, grouped by origin
 // account and sorted by nonce. The returned transaction set is a copy and can be
 // freely modified by calling code.
-func (pool *TxPool) Pending() (map[common.Address]types.Transactions, error) {
+//
+// The enforceTips parameter can be used to do an extra filtering on the pending
+// transactions and only return those whose **effective** tip is large enough in
+// the next pending execution environment.
+func (pool *TxPool) Pending(enforceTips bool) (map[common.Address]types.Transactions, error) {
 	pool.mu.Lock()
 	defer pool.mu.Unlock()
 
 	pending := make(map[common.Address]types.Transactions)
 	for addr, list := range pool.pending {
-		pending[addr] = list.Flatten()
+		txs := list.Flatten()
+
+		// If the miner requests tip enforcement, cap the lists now
+		if enforceTips && !pool.locals.contains(addr) {
+			for i, tx := range txs {
+				if tx.EffectiveTipIntCmp(pool.gasPrice, pool.priced.urgent.baseFee) < 0 {
+					txs = txs[:i]
+					break
+				}
+			}
+		}
+		if len(txs) > 0 {
+			pending[addr] = txs
+		}
 	}
 	return pending, nil
 }
@@ -562,7 +580,7 @@ func (pool *TxPool) validateTx(tx *types.Transaction, local bool) error {
 	if tx.Tip().BitLen() > 256 {
 		return ErrTipVeryHigh
 	}
-	// Ensure feeCap is less than or equal to tip.
+	// Ensure feeCap is greater than or equal to tip.
 	if tx.FeeCapIntCmp(tx.Tip()) < 0 {
 		return ErrTipAboveFeeCap
 	}
@@ -1114,8 +1132,9 @@ func (pool *TxPool) runReorg(done chan struct{}, reset *txpoolResetRequest, dirt
 	// because of another transaction (e.g. higher gas price).
 	if reset != nil {
 		pool.demoteUnexecutables()
-		if reset.newHead != nil {
-			pool.priced.SetBaseFee(reset.newHead.BaseFee)
+		if reset.newHead != nil && pool.chainconfig.IsLondon(new(big.Int).Add(reset.newHead.Number, big.NewInt(1))) {
+			pendingBaseFee := misc.CalcBaseFee(pool.chainconfig, reset.newHead)
+			pool.priced.SetBaseFee(pendingBaseFee)
 		}
 	}
 	// Ensure pool.queue and pool.pending sizes stay within the configured limits.

core/tx_pool_test.go

@@ -252,7 +252,7 @@ func TestStateChangeDuringTransactionPoolReset(t *testing.T) {
 	trigger = true
 	<-pool.requestReset(nil, nil)
 
-	_, err := pool.Pending()
+	_, err := pool.Pending(false)
 	if err != nil {
 		t.Fatalf("Could not fetch pending transactions: %v", err)
 	}

core/types/transaction.go

@@ -356,6 +356,14 @@ func (tx *Transaction) EffectiveTipCmp(other *Transaction, baseFee *big.Int) int
 	return tx.EffectiveTipValue(baseFee).Cmp(other.EffectiveTipValue(baseFee))
 }
 
+// EffectiveTipIntCmp compares the effective tip of a transaction to the given tip.
+func (tx *Transaction) EffectiveTipIntCmp(other *big.Int, baseFee *big.Int) int {
+	if baseFee == nil {
+		return tx.TipIntCmp(other)
+	}
+	return tx.EffectiveTipValue(baseFee).Cmp(other)
+}
+
 // Hash returns the transaction hash.
 func (tx *Transaction) Hash() common.Hash {
 	if hash := tx.hash.Load(); hash != nil {

eth/api_backend.go

@@ -231,7 +231,7 @@ func (b *EthAPIBackend) SendTx(ctx context.Context, signedTx *types.Transaction)
 }
 
 func (b *EthAPIBackend) GetPoolTransactions() (types.Transactions, error) {
-	pending, err := b.eth.txPool.Pending()
+	pending, err := b.eth.txPool.Pending(false)
 	if err != nil {
 		return nil, err
 	}

eth/catalyst/api.go

@@ -127,7 +127,7 @@ func (api *consensusAPI) AssembleBlock(params assembleBlockParams) (*executableD
 		time.Sleep(wait)
 	}
 
-	pending, err := pool.Pending()
+	pending, err := pool.Pending(true)
 	if err != nil {
 		return nil, err
 	}

eth/handler.go

@@ -66,7 +66,7 @@ type txPool interface {
 
 	// Pending should return pending transactions.
 	// The slice should be modifiable by the caller.
-	Pending() (map[common.Address]types.Transactions, error)
+	Pending(enforceTips bool) (map[common.Address]types.Transactions, error)
 
 	// SubscribeNewTxsEvent should return an event subscription of
 	// NewTxsEvent and send events to the given channel.

eth/handler_test.go

@@ -91,7 +91,7 @@ func (p *testTxPool) AddRemotes(txs []*types.Transaction) []error {
 }
 
 // Pending returns all the transactions known to the pool
-func (p *testTxPool) Pending() (map[common.Address]types.Transactions, error) {
+func (p *testTxPool) Pending(enforceTips bool) (map[common.Address]types.Transactions, error) {
 	p.lock.RLock()
 	defer p.lock.RUnlock()
 

eth/sync.go

@@ -54,7 +54,7 @@ func (h *handler) syncTransactions(p *eth.Peer) {
 	//
 	// TODO(karalabe): Figure out if we could get away with random order somehow
 	var txs types.Transactions
-	pending, _ := h.txpool.Pending()
+	pending, _ := h.txpool.Pending(false)
 	for _, batch := range pending {
 		txs = append(txs, batch...)
 	}

miner/worker.go

@@ -963,7 +963,7 @@ func (w *worker) commitNewWork(interrupt *int32, noempty bool, timestamp int64)
 	}
 
 	// Fill the block with all available pending transactions.
-	pending, err := w.eth.TxPool().Pending()
+	pending, err := w.eth.TxPool().Pending(true)
 	if err != nil {
 		log.Error("Failed to fetch pending transactions", "err", err)
 		return