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Bugfix: getwork: NULL pindexPrev across CreateNewBlock, in case it fails

0.8
Luke Dashjr 13 years ago
parent
commit
b354251f1a
  1. 10
      rpc.cpp

10
rpc.cpp

@ -967,8 +967,13 @@ Value getwork(const Array& params, bool fHelp) @@ -967,8 +967,13 @@ Value getwork(const Array& params, bool fHelp)
delete pblock;
vNewBlock.clear();
}
// Clear pindexPrev so future getworks make a new block, despite any failures from here on
pindexPrev = NULL;
// Store the pindexBest used before CreateNewBlock, to avoid races
nTransactionsUpdatedLast = nTransactionsUpdated;
pindexPrev = pindexBest;
CBlockIndex* pindexPrevNew = pindexBest;
nStart = GetTime();
// Create new block
@ -976,6 +981,9 @@ Value getwork(const Array& params, bool fHelp) @@ -976,6 +981,9 @@ Value getwork(const Array& params, bool fHelp)
if (!pblock)
throw JSONRPCError(-7, "Out of memory");
vNewBlock.push_back(pblock);
// Need to update only after we know CreateNewBlock succeeded
pindexPrev = pindexPrevNew;
}
// Update nTime

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