diff options
| -rw-r--r-- | src/main.cpp | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/src/main.cpp b/src/main.cpp index a9c080ffae..f8e9f16389 100644 --- a/src/main.cpp +++ b/src/main.cpp @@ -94,7 +94,9 @@ namespace { }; CBlockIndex *pindexBestInvalid; - // may contain all CBlockIndex*'s that have validness >=BLOCK_VALID_TRANSACTIONS, and must contain those who aren't failed + + // The set of all CBlockIndex entries with BLOCK_VALID_TRANSACTIONS or better that are at least + // as good as our current tip. Entries may be failed, though. set<CBlockIndex*, CBlockIndexWorkComparator> setBlockIndexValid; CCriticalSection cs_LastBlockFile; @@ -2129,6 +2131,15 @@ static bool ActivateBestChainStep(CValidationState &state, CBlockIndex *pindexMo return false; } } else { + // Delete all entries in setBlockIndexValid that are worse than our new current block. + // Note that we can't delete the current block itself, as we may need to return to it later in case a + // reorganization to a better block fails. + std::set<CBlockIndex*, CBlockIndexWorkComparator>::iterator it = setBlockIndexValid.begin(); + while (setBlockIndexValid.value_comp()(*it, chainActive.Tip())) { + setBlockIndexValid.erase(it++); + } + // Either the current tip or a successor of it we're working towards is left in setBlockIndexValid. + assert(!setBlockIndexValid.empty()); if (!pindexOldTip || chainActive.Tip()->nChainWork > pindexOldTip->nChainWork) { // We're in a better position than we were. Return temporarily to release the lock. break; |