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Merge #12988: Hold cs_main while calling UpdatedBlockTip() signal

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d86edd3 Hold cs_main while calling UpdatedBlockTip() and ui.NotifyBlockTip (Jesse Cohen)

Pull request description:

  Resolves #12978

Tree-SHA512: 2aed09434cd8dbf541ea75462070b73ee87ff31409bede210f6999ffee4a37e32202a289efd37609485d4cbdfe134fe4660a10bfb41e8a8acdba7cd0b61b8780

fix indentation

Signed-off-by: pasta <pasta@dashboost.org>
This commit is contained in:
Wladimir J. van der Laan 2018-04-17 16:00:44 +02:00 committed by pasta
parent f70e8bebcd
commit 06aebf5eb0
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GPG Key ID: 52527BEDABE87984
2 changed files with 14 additions and 11 deletions
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7
src/validation.cpp
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@ -3069,12 +3069,9 @@ bool CChainState::ActivateBestChain(CValidationState &state, const CChainParams&
assert(trace.pblock && trace.pindex); assert(trace.pblock && trace.pindex);
GetMainSignals().BlockConnected(trace.pblock, trace.pindex, trace.conflictedTxs); GetMainSignals().BlockConnected(trace.pblock, trace.pindex, trace.conflictedTxs);
} }
}
// When we reach this point, we switched to a new tip (stored in pindexNewTip).
// Notifications/callbacks that can run without cs_main
// Notify external listeners about the new tip. // Notify external listeners about the new tip.
// Enqueue while holding cs_main to ensure that UpdatedBlockTip is called in the order in which blocks are connected
GetMainSignals().SynchronousUpdatedBlockTip(pindexNewTip, pindexFork, fInitialDownload); GetMainSignals().SynchronousUpdatedBlockTip(pindexNewTip, pindexFork, fInitialDownload);
GetMainSignals().UpdatedBlockTip(pindexNewTip, pindexFork, fInitialDownload); GetMainSignals().UpdatedBlockTip(pindexNewTip, pindexFork, fInitialDownload);
@ -3082,6 +3079,8 @@ bool CChainState::ActivateBestChain(CValidationState &state, const CChainParams&
if (pindexFork != pindexNewTip) { if (pindexFork != pindexNewTip) {
uiInterface.NotifyBlockTip(fInitialDownload, pindexNewTip); uiInterface.NotifyBlockTip(fInitialDownload, pindexNewTip);
} }
}
// When we reach this point, we switched to a new tip (stored in pindexNewTip).
if (nStopAtHeight && pindexNewTip && pindexNewTip->nHeight >= nStopAtHeight) StartShutdown(); if (nStopAtHeight && pindexNewTip && pindexNewTip->nHeight >= nStopAtHeight) StartShutdown();

4
src/validationinterface.cpp
View File

@ -170,6 +170,10 @@ void CMainSignals::MempoolEntryRemoved(CTransactionRef ptx, MemPoolRemovalReason
} }
void CMainSignals::UpdatedBlockTip(const CBlockIndex *pindexNew, const CBlockIndex *pindexFork, bool fInitialDownload) { void CMainSignals::UpdatedBlockTip(const CBlockIndex *pindexNew, const CBlockIndex *pindexFork, bool fInitialDownload) {
// Dependencies exist that require UpdatedBlockTip events to be delivered in the order in which
// the chain actually updates. One way to ensure this is for the caller to invoke this signal
// in the same critical section where the chain is updated
m_internals->m_schedulerClient.AddToProcessQueue([pindexNew, pindexFork, fInitialDownload, this] { m_internals->m_schedulerClient.AddToProcessQueue([pindexNew, pindexFork, fInitialDownload, this] {
m_internals->UpdatedBlockTip(pindexNew, pindexFork, fInitialDownload); m_internals->UpdatedBlockTip(pindexNew, pindexFork, fInitialDownload);
}); });