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-rw-r--r--src/validation.cpp43
1 files changed, 33 insertions, 10 deletions
diff --git a/src/validation.cpp b/src/validation.cpp
index 5696684ed..a18e449af 100644
--- a/src/validation.cpp
+++ b/src/validation.cpp
@@ -2366,14 +2366,11 @@ class ConnectTrace {
private:
std::vector<PerBlockConnectTrace> blocksConnected;
CTxMemPool &pool;
+ boost::signals2::scoped_connection m_connNotifyEntryRemoved;
public:
explicit ConnectTrace(CTxMemPool &_pool) : blocksConnected(1), pool(_pool) {
- pool.NotifyEntryRemoved.connect(boost::bind(&ConnectTrace::NotifyEntryRemoved, this, _1, _2));
- }
-
- ~ConnectTrace() {
- pool.NotifyEntryRemoved.disconnect(boost::bind(&ConnectTrace::NotifyEntryRemoved, this, _1, _2));
+ m_connNotifyEntryRemoved = pool.NotifyEntryRemoved.connect(std::bind(&ConnectTrace::NotifyEntryRemoved, this, std::placeholders::_1, std::placeholders::_2));
}
void BlockConnected(CBlockIndex* pindex, std::shared_ptr<const CBlock> pblock) {
@@ -3374,10 +3371,30 @@ bool CChainState::AcceptBlockHeader(const CBlockHeader& block, CValidationState&
if (!ContextualCheckBlockHeader(block, state, chainparams, pindexPrev, GetAdjustedTime()))
return error("%s: Consensus::ContextualCheckBlockHeader: %s, %s", __func__, hash.ToString(), FormatStateMessage(state));
- // If the previous block index isn't valid, determine if it descends from any block which
- // has been found invalid (m_failed_blocks), then mark pindexPrev and any blocks
- // between them as failed.
+ /* Determine if this block descends from any block which has been found
+ * invalid (m_failed_blocks), then mark pindexPrev and any blocks between
+ * them as failed. For example:
+ *
+ * D3
+ * /
+ * B2 - C2
+ * / \
+ * A D2 - E2 - F2
+ * \
+ * B1 - C1 - D1 - E1
+ *
+ * In the case that we attempted to reorg from E1 to F2, only to find
+ * C2 to be invalid, we would mark D2, E2, and F2 as BLOCK_FAILED_CHILD
+ * but NOT D3 (it was not in any of our candidate sets at the time).
+ *
+ * In any case D3 will also be marked as BLOCK_FAILED_CHILD at restart
+ * in LoadBlockIndex.
+ */
if (!pindexPrev->IsValid(BLOCK_VALID_SCRIPTS)) {
+ // The above does not mean "invalid": it checks if the previous block
+ // hasn't been validated up to BLOCK_VALID_SCRIPTS. This is a performance
+ // optimization, in the common case of adding a new block to the tip,
+ // we don't need to iterate over the failed blocks list.
for (const CBlockIndex* failedit : m_failed_blocks) {
if (pindexPrev->GetAncestor(failedit->nHeight) == failedit) {
assert(failedit->nStatus & BLOCK_FAILED_VALID);
@@ -3981,7 +3998,7 @@ bool CVerifyDB::VerifyDB(const CChainParams& chainparams, CCoinsView *coinsview,
LogPrintf("[0%%]..."); /* Continued */
for (pindex = chainActive.Tip(); pindex && pindex->pprev; pindex = pindex->pprev) {
boost::this_thread::interruption_point();
- int percentageDone = std::max(1, std::min(99, (int)(((double)(chainActive.Height() - pindex->nHeight)) / (double)nCheckDepth * (nCheckLevel >= 4 ? 50 : 100))));
+ const int percentageDone = std::max(1, std::min(99, (int)(((double)(chainActive.Height() - pindex->nHeight)) / (double)nCheckDepth * (nCheckLevel >= 4 ? 50 : 100))));
if (reportDone < percentageDone/10) {
// report every 10% step
LogPrintf("[%d%%]...", percentageDone); /* Continued */
@@ -4039,7 +4056,13 @@ bool CVerifyDB::VerifyDB(const CChainParams& chainparams, CCoinsView *coinsview,
if (nCheckLevel >= 4) {
while (pindex != chainActive.Tip()) {
boost::this_thread::interruption_point();
- uiInterface.ShowProgress(_("Verifying blocks..."), std::max(1, std::min(99, 100 - (int)(((double)(chainActive.Height() - pindex->nHeight)) / (double)nCheckDepth * 50))), false);
+ const int percentageDone = std::max(1, std::min(99, 100 - (int)(((double)(chainActive.Height() - pindex->nHeight)) / (double)nCheckDepth * 50)));
+ if (reportDone < percentageDone/10) {
+ // report every 10% step
+ LogPrintf("[%d%%]...", percentageDone); /* Continued */
+ reportDone = percentageDone/10;
+ }
+ uiInterface.ShowProgress(_("Verifying blocks..."), percentageDone, false);
pindex = chainActive.Next(pindex);
CBlock block;
if (!ReadBlockFromDisk(block, pindex, chainparams.GetConsensus()))