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Fix incorrect usage of begin() when genesis block is requested in "protx diff" #2699

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merged 2 commits into from
Feb 12, 2019
Merged

Fix incorrect usage of begin() when genesis block is requested in "protx diff" #2699

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3587e2d
Fix incorrect usage of begin() when genesis block is requested in "pr…
codablock Feb 12, 2019
1c97366
Update src/evo/simplifiedmns.cpp
UdjinM6 Feb 12, 2019
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20 changes: 11 additions & 9 deletions src/evo/simplifiedmns.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -119,25 +119,27 @@ bool BuildSimplifiedMNListDiff(const uint256& baseBlockHash, const uint256& bloc
AssertLockHeld(cs_main);
mnListDiffRet = CSimplifiedMNListDiff();

BlockMap::iterator baseBlockIt = mapBlockIndex.begin();
const CBlockIndex* baseBlockIndex = chainActive[0];
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if (!baseBlockHash.IsNull()) {
baseBlockIt = mapBlockIndex.find(baseBlockHash);
auto it = mapBlockIndex.find(baseBlockHash);
if (it == mapBlockIndex.end()) {
errorRet = strprintf("block %s not found", baseBlockHash.ToString());
return false;
}
baseBlockIndex = it->second;
}
auto blockIt = mapBlockIndex.find(blockHash);
if (baseBlockIt == mapBlockIndex.end()) {
errorRet = strprintf("block %s not found", baseBlockHash.ToString());
return false;
}
if (blockIt == mapBlockIndex.end()) {
errorRet = strprintf("block %s not found", blockHash.ToString());
return false;
}
const CBlockIndex* blockIndex = blockIt->second;

if (!chainActive.Contains(baseBlockIt->second) || !chainActive.Contains(blockIt->second)) {
if (!chainActive.Contains(baseBlockIndex) || !chainActive.Contains(blockIndex)) {
errorRet = strprintf("block %s and %s are not in the same chain", baseBlockHash.ToString(), blockHash.ToString());
return false;
}
if (baseBlockIt->second->nHeight > blockIt->second->nHeight) {
if (baseBlockIndex->nHeight > blockIndex->nHeight) {
errorRet = strprintf("base block %s is higher then block %s", baseBlockHash.ToString(), blockHash.ToString());
return false;
}
Expand All @@ -150,7 +152,7 @@ bool BuildSimplifiedMNListDiff(const uint256& baseBlockHash, const uint256& bloc

// TODO store coinbase TX in CBlockIndex
CBlock block;
if (!ReadBlockFromDisk(block, blockIt->second, Params().GetConsensus())) {
if (!ReadBlockFromDisk(block, blockIndex, Params().GetConsensus())) {
errorRet = strprintf("failed to read block %s from disk", blockHash.ToString());
return false;
}
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