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Handle no chain tip available in InvalidChainFound()

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Handle the case where no chain tip is available, in InvalidChainFound(). This fixes a null pointer deference when running unit tests, if the genesis block or block validation code is broken.
This commit is contained in:
Ross Nicoll 2015-07-04 20:14:03 +01:00
parent 633fe10869
commit c433828df9
1 changed files with 4 additions and 2 deletions
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6
src/main.cpp
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@ -1196,9 +1196,11 @@ void static InvalidChainFound(CBlockIndex* pindexNew)
pindexNew->GetBlockHash().ToString(), pindexNew->nHeight,
log(pindexNew->nChainWork.getdouble())/log(2.0), DateTimeStrFormat("%Y-%m-%d %H:%M:%S",
pindexNew->GetBlockTime()));
CBlockIndex *tip = chainActive.Tip();
assert (tip);
LogPrintf("%s: current best=%s height=%d log2_work=%.8g date=%s\n", __func__,
chainActive.Tip()->GetBlockHash().ToString(), chainActive.Height(), log(chainActive.Tip()->nChainWork.getdouble())/log(2.0),
DateTimeStrFormat("%Y-%m-%d %H:%M:%S", chainActive.Tip()->GetBlockTime()));
tip->GetBlockHash().ToString(), chainActive.Height(), log(tip->nChainWork.getdouble())/log(2.0),
DateTimeStrFormat("%Y-%m-%d %H:%M:%S", tip->GetBlockTime()));
CheckForkWarningConditions();
}