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refactor: Compute work from headers without CBlockIndex

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Avoid the need to construct a CBlockIndex object just to compute work for a header,
when its nBits value suffices for that.

Co-Authored-By: Pieter Wuille <pieter@wuille.net>
This commit is contained in:
Daniela Brozzoni
2025-08-18 11:46:04 +02:00
parent 0bf6139e19
commit 4066bfe561
5 changed files with 16 additions and 9 deletions
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4
src/net_processing.cpp
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@@ -4348,7 +4348,7 @@ void PeerManagerImpl::ProcessMessage(CNode& pfrom, const std::string& msg_type,
MaybeSendGetHeaders(pfrom, GetLocator(m_chainman.m_best_header), *peer);
}
return;
} else if (prev_block->nChainWork + CalculateClaimedHeadersWork({{cmpctblock.header}}) < GetAntiDoSWorkThreshold()) {
} else if (prev_block->nChainWork + GetBlockProof(cmpctblock.header) < GetAntiDoSWorkThreshold()) {
// If we get a low-work header in a compact block, we can ignore it.
LogDebug(BCLog::NET, "Ignoring low-work compact block from peer %d\n", pfrom.GetId());
return;
@@ -4666,7 +4666,7 @@ void PeerManagerImpl::ProcessMessage(CNode& pfrom, const std::string& msg_type,
mapBlockSource.emplace(hash, std::make_pair(pfrom.GetId(), true));
// Check claimed work on this block against our anti-dos thresholds.
if (prev_block && prev_block->nChainWork + CalculateClaimedHeadersWork({{pblock->GetBlockHeader()}}) >= GetAntiDoSWorkThreshold()) {
if (prev_block && prev_block->nChainWork + GetBlockProof(pblock->GetBlockHeader()) >= GetAntiDoSWorkThreshold()) {
min_pow_checked = true;
}
}