diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/validation.cpp | 65 | ||||
| -rw-r--r-- | src/validationinterface.h | 6 |
2 files changed, 42 insertions, 29 deletions
diff --git a/src/validation.cpp b/src/validation.cpp index daa33d3f5a..477b3e1550 100644 --- a/src/validation.cpp +++ b/src/validation.cpp @@ -2666,45 +2666,53 @@ bool CChainState::ActivateBestChain(CValidationState &state, const CChainParams& SyncWithValidationInterfaceQueue(); } - const CBlockIndex *pindexFork; - bool fInitialDownload; { LOCK(cs_main); - ConnectTrace connectTrace(mempool); // Destructed before cs_main is unlocked + CBlockIndex* starting_tip = chainActive.Tip(); + bool blocks_connected = false; + do { + // We absolutely may not unlock cs_main until we've made forward progress + // (with the exception of shutdown due to hardware issues, low disk space, etc). + ConnectTrace connectTrace(mempool); // Destructed before cs_main is unlocked + + if (pindexMostWork == nullptr) { + pindexMostWork = FindMostWorkChain(); + } - CBlockIndex *pindexOldTip = chainActive.Tip(); - if (pindexMostWork == nullptr) { - pindexMostWork = FindMostWorkChain(); - } + // Whether we have anything to do at all. + if (pindexMostWork == nullptr || pindexMostWork == chainActive.Tip()) { + break; + } - // Whether we have anything to do at all. - if (pindexMostWork == nullptr || pindexMostWork == chainActive.Tip()) - return true; + bool fInvalidFound = false; + std::shared_ptr<const CBlock> nullBlockPtr; + if (!ActivateBestChainStep(state, chainparams, pindexMostWork, pblock && pblock->GetHash() == pindexMostWork->GetBlockHash() ? pblock : nullBlockPtr, fInvalidFound, connectTrace)) + return false; + blocks_connected = true; - bool fInvalidFound = false; - std::shared_ptr<const CBlock> nullBlockPtr; - if (!ActivateBestChainStep(state, chainparams, pindexMostWork, pblock && pblock->GetHash() == pindexMostWork->GetBlockHash() ? pblock : nullBlockPtr, fInvalidFound, connectTrace)) - return false; + if (fInvalidFound) { + // Wipe cache, we may need another branch now. + pindexMostWork = nullptr; + } + pindexNewTip = chainActive.Tip(); - if (fInvalidFound) { - // Wipe cache, we may need another branch now. - pindexMostWork = nullptr; - } - pindexNewTip = chainActive.Tip(); - pindexFork = chainActive.FindFork(pindexOldTip); - fInitialDownload = IsInitialBlockDownload(); + for (const PerBlockConnectTrace& trace : connectTrace.GetBlocksConnected()) { + assert(trace.pblock && trace.pindex); + GetMainSignals().BlockConnected(trace.pblock, trace.pindex, trace.conflictedTxs); + } + } while (!chainActive.Tip() || (starting_tip && CBlockIndexWorkComparator()(chainActive.Tip(), starting_tip))); + if (!blocks_connected) return true; - for (const PerBlockConnectTrace& trace : connectTrace.GetBlocksConnected()) { - assert(trace.pblock && trace.pindex); - GetMainSignals().BlockConnected(trace.pblock, trace.pindex, trace.conflictedTxs); - } + const CBlockIndex* pindexFork = chainActive.FindFork(starting_tip); + bool fInitialDownload = IsInitialBlockDownload(); // 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); - - // Always notify the UI if a new block tip was connected if (pindexFork != pindexNewTip) { + // Notify ValidationInterface subscribers + GetMainSignals().UpdatedBlockTip(pindexNewTip, pindexFork, fInitialDownload); + + // Always notify the UI if a new block tip was connected uiInterface.NotifyBlockTip(fInitialDownload, pindexNewTip); } } @@ -2728,6 +2736,7 @@ bool CChainState::ActivateBestChain(CValidationState &state, const CChainParams& return true; } + bool ActivateBestChain(CValidationState &state, const CChainParams& chainparams, std::shared_ptr<const CBlock> pblock) { return g_chainstate.ActivateBestChain(state, chainparams, std::move(pblock)); } diff --git a/src/validationinterface.h b/src/validationinterface.h index 63097166af..6bf0f9c39f 100644 --- a/src/validationinterface.h +++ b/src/validationinterface.h @@ -61,7 +61,11 @@ protected: */ ~CValidationInterface() = default; /** - * Notifies listeners of updated block chain tip + * Notifies listeners when the block chain tip advances. + * + * When multiple blocks are connected at once, UpdatedBlockTip will be called on the final tip + * but may not be called on every intermediate tip. If the latter behavior is desired, + * subscribe to BlockConnected() instead. * * Called on a background thread. */ |