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-rw-r--r--src/main.cpp67
1 files changed, 67 insertions, 0 deletions
diff --git a/src/main.cpp b/src/main.cpp
index 7b821975a7..0515eeb156 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -2135,6 +2135,73 @@ bool ActivateBestChain(CValidationState &state, CBlock *pblock) {
return true;
}
+bool InvalidateBlock(CValidationState& state, CBlockIndex *pindex) {
+ AssertLockHeld(cs_main);
+
+ // Mark the block itself as invalid.
+ pindex->nStatus |= BLOCK_FAILED_VALID;
+ setDirtyBlockIndex.insert(pindex);
+ setBlockIndexCandidates.erase(pindex);
+
+ while (chainActive.Contains(pindex)) {
+ CBlockIndex *pindexWalk = chainActive.Tip();
+ pindexWalk->nStatus |= BLOCK_FAILED_CHILD;
+ setDirtyBlockIndex.insert(pindexWalk);
+ setBlockIndexCandidates.erase(pindexWalk);
+ // ActivateBestChain considers blocks already in chainActive
+ // unconditionally valid already, so force disconnect away from it.
+ if (!DisconnectTip(state)) {
+ return false;
+ }
+ }
+
+ // The resulting new best tip may not be in setBlockIndexCandidates anymore, so
+ // add them again.
+ BlockMap::iterator it = mapBlockIndex.begin();
+ while (it != mapBlockIndex.end()) {
+ if (it->second->IsValid(BLOCK_VALID_TRANSACTIONS) && it->second->nChainTx && setBlockIndexCandidates.value_comp()(chainActive.Tip(), it->second)) {
+ setBlockIndexCandidates.insert(pindex);
+ }
+ it++;
+ }
+
+ InvalidChainFound(pindex);
+ return true;
+}
+
+bool ReconsiderBlock(CValidationState& state, CBlockIndex *pindex) {
+ AssertLockHeld(cs_main);
+
+ int nHeight = pindex->nHeight;
+
+ // Remove the invalidity flag from this block and all its descendants.
+ BlockMap::iterator it = mapBlockIndex.begin();
+ while (it != mapBlockIndex.end()) {
+ if (!it->second->IsValid() && it->second->GetAncestor(nHeight) == pindex) {
+ it->second->nStatus &= ~BLOCK_FAILED_MASK;
+ setDirtyBlockIndex.insert(it->second);
+ if (it->second->IsValid(BLOCK_VALID_TRANSACTIONS) && it->second->nChainTx && setBlockIndexCandidates.value_comp()(chainActive.Tip(), it->second)) {
+ setBlockIndexCandidates.insert(it->second);
+ }
+ if (it->second == pindexBestInvalid) {
+ // Reset invalid block marker if it was pointing to one of those.
+ pindexBestInvalid = NULL;
+ }
+ }
+ it++;
+ }
+
+ // Remove the invalidity flag from all ancestors too.
+ while (pindex != NULL) {
+ if (pindex->nStatus & BLOCK_FAILED_MASK) {
+ pindex->nStatus &= ~BLOCK_FAILED_MASK;
+ setDirtyBlockIndex.insert(pindex);
+ }
+ pindex = pindex->pprev;
+ }
+ return true;
+}
+
CBlockIndex* AddToBlockIndex(const CBlockHeader& block)
{
// Check for duplicate