core/txpool: make transaction validation reusable across packages (pools) (#27429)

* core/txpool: abstraction prep work for secondary pools (blob pool)

* core/txpool: leave subpool concepts to a followup pr

* les: fix tests using hard coded errors

* core/txpool: use bitmaps instead of maps for tx type filtering

eth/api_miner.go

@@ -63,7 +63,7 @@ func (api *MinerAPI) SetGasPrice(gasPrice hexutil.Big) bool {
 	api.e.gasPrice = (*big.Int)(&gasPrice)
 	api.e.lock.Unlock()
 
-	api.e.txPool.SetGasPrice((*big.Int)(&gasPrice))
+	api.e.txPool.SetGasTip((*big.Int)(&gasPrice))
 	return true
 }
 

eth/backend.go

@@ -206,7 +206,7 @@ func New(stack *node.Node, config *ethconfig.Config) (*Ethereum, error) {
 	if config.TxPool.Journal != "" {
 		config.TxPool.Journal = stack.ResolvePath(config.TxPool.Journal)
 	}
-	eth.txPool = txpool.NewTxPool(config.TxPool, eth.blockchain.Config(), eth.blockchain)
+	eth.txPool = txpool.New(config.TxPool, eth.blockchain.Config(), eth.blockchain)
 
 	// Permit the downloader to use the trie cache allowance during fast sync
 	cacheLimit := cacheConfig.TrieCleanLimit + cacheConfig.TrieDirtyLimit + cacheConfig.SnapshotLimit
@@ -399,7 +399,7 @@ func (s *Ethereum) StartMining() error {
 		s.lock.RLock()
 		price := s.gasPrice
 		s.lock.RUnlock()
-		s.txPool.SetGasPrice(price)
+		s.txPool.SetGasTip(price)
 
 		// Configure the local mining address
 		eb, err := s.Etherbase()

eth/protocols/eth/handler_test.go

@@ -119,7 +119,7 @@ func newTestBackendWithGenerator(blocks int, shanghai bool, generator func(int,
 	return &testBackend{
 		db:     db,
 		chain:  chain,
-		txpool: txpool.NewTxPool(txconfig, params.TestChainConfig, chain),
+		txpool: txpool.New(txconfig, params.TestChainConfig, chain),
 	}
 }