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Trim headers when loading block index from disk.

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This commit is contained in:
Glenn Willen 2022-11-08 00:24:19 -08:00
parent 7c555578b7
commit eff6be337f
3 changed files with 69 additions and 12 deletions
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14
src/validation.cpp
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@ -4110,7 +4110,19 @@ bool BlockManager::LoadBlockIndex(
CBlockTreeDB& blocktree,
std::set<CBlockIndex*, CBlockIndexWorkComparator>& block_index_candidates)
{
if (!blocktree.LoadBlockIndexGuts(consensus_params, [this](const uint256& hash) EXCLUSIVE_LOCKS_REQUIRED(cs_main) { return this->InsertBlockIndex(hash); }))
int trim_below_height = 0;
if (fTrimHeaders) {
int max_height = 0;
if (!blocktree.WalkBlockIndexGutsForMaxHeight(&max_height)) {
LogPrintf("LoadBlockIndex: Somehow failed to WalkBlockIndexGutsForMaxHeight.\n");
return false;
}
int must_keep_headers = (consensus_params.total_valid_epochs + 2) * consensus_params.dynamic_epoch_length;
int extra_headers_buffer = consensus_params.dynamic_epoch_length * 2; // XXX arbitrary
trim_below_height = max_height - must_keep_headers - extra_headers_buffer;
}
if (!blocktree.LoadBlockIndexGuts(consensus_params, [this](const uint256& hash) EXCLUSIVE_LOCKS_REQUIRED(cs_main) { return this->InsertBlockIndex(hash); }, trim_below_height))
return false;
// Calculate nChainWork