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Fix importwallet edge case rescan bug

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Start importwallet rescans at the first block with timestamp greater or equal
to the wallet birthday instead of the last block with timestamp less or equal.
This fixes an edge case bug where importwallet could fail to start the rescan
early enough if there are blocks with decreasing timestamps or multiple blocks
with the same timestamp.
This commit is contained in:
Russell Yanofsky
2017-05-16 11:34:28 -04:00
parent 41987aa92f
commit 2a8e35a11d
2 changed files with 65 additions and 6 deletions
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9
src/wallet/rpcdump.cpp
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@@ -536,14 +536,11 @@ UniValue importwallet(const JSONRPCRequest& request)
}
file.close();
pwallet->ShowProgress("", 100); // hide progress dialog in GUI
CBlockIndex *pindex = chainActive.Tip();
while (pindex && pindex->pprev && pindex->GetBlockTime() > nTimeBegin - TIMESTAMP_WINDOW)
pindex = pindex->pprev;
pwallet->UpdateTimeFirstKey(nTimeBegin);
LogPrintf("Rescanning last %i blocks\n", chainActive.Height() - pindex->nHeight + 1);
CBlockIndex *pindex = chainActive.FindEarliestAtLeast(nTimeBegin - TIMESTAMP_WINDOW);
LogPrintf("Rescanning last %i blocks\n", pindex ? chainActive.Height() - pindex->nHeight + 1 : 0);
pwallet->ScanForWalletTransactions(pindex);
pwallet->MarkDirty();