diff options
| -rw-r--r-- | src/validation.cpp | 19 | ||||
| -rw-r--r-- | src/validationinterface.cpp | 4 |
2 files changed, 13 insertions, 10 deletions
diff --git a/src/validation.cpp b/src/validation.cpp index cbbc857fdc..b7bca38268 100644 --- a/src/validation.cpp +++ b/src/validation.cpp @@ -353,7 +353,7 @@ bool CheckSequenceLocks(const CTransaction &tx, int flags, LockPoints* lp, bool CBlockIndex* tip = chainActive.Tip(); assert(tip != nullptr); - + CBlockIndex index; index.pprev = tip; // CheckSequenceLocks() uses chainActive.Height()+1 to evaluate @@ -2677,18 +2677,17 @@ bool CChainState::ActivateBestChain(CValidationState &state, const CChainParams& assert(trace.pblock && trace.pindex); 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. + // Enqueue while holding cs_main to ensure that UpdatedBlockTip is called in the order in which blocks are connected + GetMainSignals().UpdatedBlockTip(pindexNewTip, pindexFork, fInitialDownload); - // Notify external listeners about the new tip. - GetMainSignals().UpdatedBlockTip(pindexNewTip, pindexFork, fInitialDownload); - - // Always notify the UI if a new block tip was connected - if (pindexFork != pindexNewTip) { - uiInterface.NotifyBlockTip(fInitialDownload, pindexNewTip); + // Always notify the UI if a new block tip was connected + if (pindexFork != 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(); diff --git a/src/validationinterface.cpp b/src/validationinterface.cpp index 928df4fa65..746263f113 100644 --- a/src/validationinterface.cpp +++ b/src/validationinterface.cpp @@ -139,6 +139,10 @@ void CMainSignals::MempoolEntryRemoved(CTransactionRef ptx, MemPoolRemovalReason } 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->UpdatedBlockTip(pindexNew, pindexFork, fInitialDownload); }); |