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add check for empty lists in txpool (#704)

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* add check

* linters
This commit is contained in:
Evgeny Danilenko 2023-02-09 11:07:44 +04:00 committed by GitHub
parent a4f1ac1500
commit c46aae23da
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GPG key ID: 4AEE18F83AFDEB23
2 changed files with 10 additions and 3 deletions
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8
core/tx_list.go
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@ -351,9 +351,8 @@ func (m *txSortedMap) lastElement() *types.Transaction {
m.cacheMu.Unlock()
cache = make(types.Transactions, 0, len(m.items))
m.m.RLock()
cache = make(types.Transactions, 0, len(m.items))
for _, tx := range m.items {
cache = append(cache, tx)
@ -373,6 +372,11 @@ func (m *txSortedMap) lastElement() *types.Transaction {
hitCacheCounter.Inc(1)
}
ln := len(cache)
if ln == 0 {
return nil
}
return cache[len(cache)-1]
}

5
core/tx_pool.go
View file

@ -1539,6 +1539,7 @@ func (pool *TxPool) runReorg(ctx context.Context, done chan struct{}, reset *txp
// remove any transaction that has been included in the block or was invalidated
// because of another transaction (e.g. higher gas price).
//nolint:nestif
if reset != nil {
tracing.ElapsedTime(ctx, span, "new block", func(_ context.Context, innerSpan trace.Span) {
@ -1573,7 +1574,9 @@ func (pool *TxPool) runReorg(ctx context.Context, done chan struct{}, reset *txp
tracing.ElapsedTime(ctx, innerSpan, "09 fill nonces", func(_ context.Context, innerSpan trace.Span) {
for addr, list := range pool.pending {
highestPending = list.LastElement()
nonces[addr] = highestPending.Nonce() + 1
if highestPending != nil {
nonces[addr] = highestPending.Nonce() + 1
}
}
})