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internal/ethapi: prealloc map for the txpool api (#32110)

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use `make(map, len(txpool))` to prealloc the map for the txpool content,
to avoid the map growing in the loop.
This commit is contained in:
nthumann 2025-07-01 08:07:33 +01:00 committed by GitHub
parent 2055196cea
commit 7c180f851c
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GPG key ID: B5690EEEBB952194
1 changed files with 12 additions and 12 deletions
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24
internal/ethapi/api.go
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@ -186,15 +186,15 @@ func NewTxPoolAPI(b Backend) *TxPoolAPI {
// Content returns the transactions contained within the transaction pool.
func (api *TxPoolAPI) Content() map[string]map[string]map[string]*RPCTransaction {
content := map[string]map[string]map[string]*RPCTransaction{
"pending": make(map[string]map[string]*RPCTransaction),
"queued": make(map[string]map[string]*RPCTransaction),
}
pending, queue := api.b.TxPoolContent()
content := map[string]map[string]map[string]*RPCTransaction{
"pending": make(map[string]map[string]*RPCTransaction, len(pending)),
"queued": make(map[string]map[string]*RPCTransaction, len(queue)),
}
curHeader := api.b.CurrentHeader()
// Flatten the pending transactions
for account, txs := range pending {
dump := make(map[string]*RPCTransaction)
dump := make(map[string]*RPCTransaction, len(txs))
for _, tx := range txs {
dump[fmt.Sprintf("%d", tx.Nonce())] = NewRPCPendingTransaction(tx, curHeader, api.b.ChainConfig())
}
@ -202,7 +202,7 @@ func (api *TxPoolAPI) Content() map[string]map[string]map[string]*RPCTransaction
}
// Flatten the queued transactions
for account, txs := range queue {
dump := make(map[string]*RPCTransaction)
dump := make(map[string]*RPCTransaction, len(txs))
for _, tx := range txs {
dump[fmt.Sprintf("%d", tx.Nonce())] = NewRPCPendingTransaction(tx, curHeader, api.b.ChainConfig())
}
@ -246,11 +246,11 @@ func (api *TxPoolAPI) Status() map[string]hexutil.Uint {
// Inspect retrieves the content of the transaction pool and flattens it into an
// easily inspectable list.
func (api *TxPoolAPI) Inspect() map[string]map[string]map[string]string {
content := map[string]map[string]map[string]string{
"pending": make(map[string]map[string]string),
"queued": make(map[string]map[string]string),
}
pending, queue := api.b.TxPoolContent()
content := map[string]map[string]map[string]string{
"pending": make(map[string]map[string]string, len(pending)),
"queued": make(map[string]map[string]string, len(queue)),
}
// Define a formatter to flatten a transaction into a string
format := func(tx *types.Transaction) string {
@ -261,7 +261,7 @@ func (api *TxPoolAPI) Inspect() map[string]map[string]map[string]string {
}
// Flatten the pending transactions
for account, txs := range pending {
dump := make(map[string]string)
dump := make(map[string]string, len(txs))
for _, tx := range txs {
dump[fmt.Sprintf("%d", tx.Nonce())] = format(tx)
}
@ -269,7 +269,7 @@ func (api *TxPoolAPI) Inspect() map[string]map[string]map[string]string {
}
// Flatten the queued transactions
for account, txs := range queue {
dump := make(map[string]string)
dump := make(map[string]string, len(txs))
for _, tx := range txs {
dump[fmt.Sprintf("%d", tx.Nonce())] = format(tx)
}