diff options
| -rw-r--r-- | src/bitcoinrpc.cpp | 22 |
1 files changed, 20 insertions, 2 deletions
diff --git a/src/bitcoinrpc.cpp b/src/bitcoinrpc.cpp index 85ef9031c7..3af298a58b 100644 --- a/src/bitcoinrpc.cpp +++ b/src/bitcoinrpc.cpp @@ -1851,8 +1851,13 @@ 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 @@ -1860,6 +1865,9 @@ 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 @@ -1950,16 +1958,26 @@ Value getmemorypool(const Array& params, bool fHelp) if (pindexPrev != pindexBest || (nTransactionsUpdated != nTransactionsUpdatedLast && GetTime() - nStart > 5)) { + // Clear pindexPrev so future calls 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 if(pblock) + { delete pblock; + pblock = NULL; + } pblock = CreateNewBlock(reservekey); if (!pblock) throw JSONRPCError(-7, "Out of memory"); + + // Need to update only after we know CreateNewBlock succeeded + pindexPrev = pindexPrevNew; } // Update nTime |