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Additional null pindex checks

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This commit is contained in:
miketout
2018-10-14 01:31:58 -07:00
parent e82ee7e3cc
commit 41e9e058e0
3 changed files with 61 additions and 45 deletions
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39
src/main.cpp
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@@ -4138,8 +4138,8 @@ bool InvalidateBlock(CValidationState& state, CBlockIndex *pindex) {
// The resulting new best tip may not be in setBlockIndexCandidates anymore, so
// add it again.
BlockMap::iterator it = mapBlockIndex.begin();
while (it != mapBlockIndex.end() && it->second != 0 ) {
if (it->second->IsValid(BLOCK_VALID_TRANSACTIONS) && it->second->nChainTx && !setBlockIndexCandidates.value_comp()(it->second, chainActive.Tip())) {
while (it != mapBlockIndex.end()) {
if ((it->second != 0) && it->second->IsValid(BLOCK_VALID_TRANSACTIONS) && it->second->nChainTx && !setBlockIndexCandidates.value_comp()(it->second, chainActive.Tip())) {
setBlockIndexCandidates.insert(it->second);
}
it++;
@@ -4159,8 +4159,8 @@ bool ReconsiderBlock(CValidationState& state, CBlockIndex *pindex) {
// Remove the invalidity flag from this block and all its descendants.
BlockMap::iterator it = mapBlockIndex.begin();
while (it != mapBlockIndex.end() && it->second != 0) {
if (!it->second->IsValid() && it->second->GetAncestor(nHeight) == pindex) {
while (it != mapBlockIndex.end()) {
if ((it->second != 0) && !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)) {
@@ -4191,6 +4191,19 @@ CBlockIndex* AddToBlockIndex(const CBlockHeader& block)
uint256 hash = block.GetHash();
BlockMap::iterator it = mapBlockIndex.find(hash);
BlockMap::iterator miPrev = mapBlockIndex.find(block.hashPrevBlock);
// the following block is for debugging, comment when not needed
int countNull = 0;
int totalIdx = 0;
for (auto bit : mapBlockIndex)
{
totalIdx++;
if (bit.second == NULL)
countNull++;
}
if (countNull)
printf("%d total, %d NULL\n", totalIdx, countNull);
if (it != mapBlockIndex.end())
{
if ( it->second != 0 ) // vNodes.size() >= KOMODO_LIMITED_NETWORKSIZE, change behavior to allow komodo_ensure to work
@@ -4216,7 +4229,7 @@ CBlockIndex* AddToBlockIndex(const CBlockHeader& block)
pindexNew->phashBlock = &((*mi).first);
if (miPrev != mapBlockIndex.end())
{
if ( (pindexNew->pprev= (*miPrev).second) != 0 )
if ( (pindexNew->pprev = (*miPrev).second) != 0 )
pindexNew->SetHeight(pindexNew->pprev->GetHeight() + 1);
else fprintf(stderr,"unexpected null pprev %s\n",hash.ToString().c_str());
pindexNew->BuildSkip();
@@ -4719,7 +4732,7 @@ bool AcceptBlockHeader(int32_t *futureblockp,const CBlockHeader& block, CValidat
if (miSelf != mapBlockIndex.end())
{
// Block header is already known.
if ( (pindex= miSelf->second) == 0 )
if ( (pindex = miSelf->second) == 0 )
miSelf->second = pindex = AddToBlockIndex(block);
if (ppindex)
*ppindex = pindex;
@@ -4889,13 +4902,13 @@ static bool IsSuperMajority(int minVersion, const CBlockIndex* pstart, unsigned
void komodo_currentheight_set(int32_t height);
CBlockIndex *komodo_ensure(CBlock *pblock,uint256 hash)
CBlockIndex *komodo_ensure(CBlock *pblock, uint256 hash)
{
CBlockIndex *pindex = 0;
BlockMap::iterator miSelf = mapBlockIndex.find(hash);
if ( miSelf != mapBlockIndex.end() )
{
if ( (pindex= miSelf->second) == 0 ) // create pindex so first Accept block doesnt fail
if ( (pindex = miSelf->second) == 0 ) // create pindex so first Accept block doesnt fail
{
miSelf->second = AddToBlockIndex(*pblock);
//fprintf(stderr,"Block header %s is already known, but without pindex -> ensured %p\n",hash.ToString().c_str(),miSelf->second);
@@ -4916,10 +4929,10 @@ CBlockIndex *komodo_ensure(CBlock *pblock,uint256 hash)
return(pindex);
}
CBlockIndex *oldkomodo_ensure(CBlock *pblock,uint256 hash)
CBlockIndex *oldkomodo_ensure(CBlock *pblock, uint256 hash)
{
CBlockIndex *pindex=0,*previndex=0;
if ( (pindex= mapBlockIndex[hash]) == 0 )
if ( (pindex = mapBlockIndex[hash]) == 0 )
{
pindex = new CBlockIndex();
if (!pindex)
@@ -5079,7 +5092,7 @@ void PruneOneBlockFile(const int fileNumber)
{
for (BlockMap::iterator it = mapBlockIndex.begin(); it != mapBlockIndex.end(); ++it) {
CBlockIndex* pindex = it->second;
if (pindex->nFile == fileNumber) {
if (pindex && pindex->nFile == fileNumber) {
pindex->nStatus &= ~BLOCK_HAVE_DATA;
pindex->nStatus &= ~BLOCK_HAVE_UNDO;
pindex->nFile = 0;
@@ -5224,7 +5237,7 @@ CBlockIndex * InsertBlockIndex(uint256 hash)
// Return existing
BlockMap::iterator mi = mapBlockIndex.find(hash);
if (mi != mapBlockIndex.end())
if (mi != mapBlockIndex.end() && mi->second != NULL)
return (*mi).second;
// Create new
@@ -5605,7 +5618,7 @@ bool RewindBlockIndex(const CChainParams& params, bool& clearWitnessCaches)
// this block or some successor doesn't HAVE_DATA, so we were unable to
// rewind all the way. Blocks remaining on chainActive at this point
// must not have their validity reduced.
if (!sufficientlyValidated(pindexIter) && !chainActive.Contains(pindexIter)) {
if (pindexIter && !sufficientlyValidated(pindexIter) && !chainActive.Contains(pindexIter)) {
// Reduce validity
pindexIter->nStatus =
std::min<unsigned int>(pindexIter->nStatus & BLOCK_VALID_MASK, BLOCK_VALID_TREE) |