diff options
-rw-r--r-- | contrib/debian/copyright | 7 | ||||
-rw-r--r-- | src/Makefile.qt.include | 1 | ||||
-rw-r--r-- | src/Makefile.test.include | 5 | ||||
-rw-r--r-- | src/qt/bitcoin.qrc | 1 | ||||
-rw-r--r-- | src/qt/bitcoingui.cpp | 24 | ||||
-rw-r--r-- | src/qt/bitcoingui.h | 5 | ||||
-rw-r--r-- | src/qt/clientmodel.cpp | 11 | ||||
-rw-r--r-- | src/qt/clientmodel.h | 2 | ||||
-rw-r--r-- | src/qt/res/icons/proxy.png | bin | 0 -> 1278 bytes | |||
-rw-r--r-- | src/qt/res/src/proxy.svg | 70 | ||||
-rw-r--r-- | src/test/test_bitcoin.cpp | 6 | ||||
-rw-r--r-- | src/test/test_bitcoin.h | 3 | ||||
-rw-r--r-- | src/test/validation_block_tests.cpp | 184 | ||||
-rw-r--r-- | src/validation.cpp | 78 | ||||
-rw-r--r-- | src/validationinterface.h | 6 |
15 files changed, 371 insertions, 32 deletions
diff --git a/contrib/debian/copyright b/contrib/debian/copyright index c6484157a5..21cca7d9ac 100644 --- a/contrib/debian/copyright +++ b/contrib/debian/copyright @@ -76,8 +76,8 @@ Comment: Files: src/qt/res/icons/clock*.png src/qt/res/icons/eye_*.png - src/qt/res/icons/verify.png src/qt/res/icons/tx_in*.png + src/qt/res/icons/verify.png src/qt/res/src/clock_*.svg src/qt/res/src/tx_*.svg src/qt/res/src/verify.svg @@ -93,6 +93,11 @@ Copyright: Bitboy, Jonas Schnelli License: public-domain Comment: Site: https://bitcointalk.org/?topic=1756.0 +Files: src/qt/res/icons/proxy.png + src/qt/res/src/proxy.svg +Copyright: Cristian Mircea Messel +Licese: public-domain + License: Expat Permission is hereby granted, free of charge, to any person obtaining a diff --git a/src/Makefile.qt.include b/src/Makefile.qt.include index 38eb12ce0d..a84a11ac45 100644 --- a/src/Makefile.qt.include +++ b/src/Makefile.qt.include @@ -278,6 +278,7 @@ RES_ICONS = \ qt/res/icons/network_disabled.png \ qt/res/icons/open.png \ qt/res/icons/overview.png \ + qt/res/icons/proxy.png \ qt/res/icons/quit.png \ qt/res/icons/receive.png \ qt/res/icons/remove.png \ diff --git a/src/Makefile.test.include b/src/Makefile.test.include index 91d3a3d47c..7174b3e8df 100644 --- a/src/Makefile.test.include +++ b/src/Makefile.test.include @@ -86,9 +86,10 @@ BITCOIN_TESTS =\ test/txindex_tests.cpp \ test/txvalidation_tests.cpp \ test/txvalidationcache_tests.cpp \ - test/versionbits_tests.cpp \ test/uint256_tests.cpp \ - test/util_tests.cpp + test/util_tests.cpp \ + test/validation_block_tests.cpp \ + test/versionbits_tests.cpp if ENABLE_WALLET BITCOIN_TESTS += \ diff --git a/src/qt/bitcoin.qrc b/src/qt/bitcoin.qrc index 451d391237..fddc2a5685 100644 --- a/src/qt/bitcoin.qrc +++ b/src/qt/bitcoin.qrc @@ -53,6 +53,7 @@ <file alias="hd_enabled">res/icons/hd_enabled.png</file> <file alias="hd_disabled">res/icons/hd_disabled.png</file> <file alias="network_disabled">res/icons/network_disabled.png</file> + <file alias="proxy">res/icons/proxy.png</file> </qresource> <qresource prefix="/movies"> <file alias="spinner-000">res/movies/spinner-000.png</file> diff --git a/src/qt/bitcoingui.cpp b/src/qt/bitcoingui.cpp index aed5374a7d..5511ca84e6 100644 --- a/src/qt/bitcoingui.cpp +++ b/src/qt/bitcoingui.cpp @@ -83,6 +83,7 @@ BitcoinGUI::BitcoinGUI(interfaces::Node& node, const PlatformStyle *_platformSty unitDisplayControl(0), labelWalletEncryptionIcon(0), labelWalletHDStatusIcon(0), + labelProxyIcon(0), connectionsControl(0), labelBlocksIcon(0), progressBarLabel(0), @@ -201,6 +202,7 @@ BitcoinGUI::BitcoinGUI(interfaces::Node& node, const PlatformStyle *_platformSty unitDisplayControl = new UnitDisplayStatusBarControl(platformStyle); labelWalletEncryptionIcon = new QLabel(); labelWalletHDStatusIcon = new QLabel(); + labelProxyIcon = new QLabel(); connectionsControl = new GUIUtil::ClickableLabel(); labelBlocksIcon = new GUIUtil::ClickableLabel(); if(enableWallet) @@ -211,6 +213,7 @@ BitcoinGUI::BitcoinGUI(interfaces::Node& node, const PlatformStyle *_platformSty frameBlocksLayout->addWidget(labelWalletEncryptionIcon); frameBlocksLayout->addWidget(labelWalletHDStatusIcon); } + frameBlocksLayout->addWidget(labelProxyIcon); frameBlocksLayout->addStretch(); frameBlocksLayout->addWidget(connectionsControl); frameBlocksLayout->addStretch(); @@ -503,6 +506,9 @@ void BitcoinGUI::setClientModel(ClientModel *_clientModel) connect(_clientModel, SIGNAL(showProgress(QString,int)), this, SLOT(showProgress(QString,int))); rpcConsole->setClientModel(_clientModel); + + updateProxyIcon(); + #ifdef ENABLE_WALLET if(walletFrame) { @@ -1125,6 +1131,24 @@ void BitcoinGUI::updateWalletStatus() } #endif // ENABLE_WALLET +void BitcoinGUI::updateProxyIcon() +{ + std::string ip_port; + bool proxy_enabled = clientModel->getProxyInfo(ip_port); + + if (proxy_enabled) { + if (labelProxyIcon->pixmap() == 0) { + QString ip_port_q = QString::fromStdString(ip_port); + labelProxyIcon->setPixmap(platformStyle->SingleColorIcon(":/icons/proxy").pixmap(STATUSBAR_ICONSIZE, STATUSBAR_ICONSIZE)); + labelProxyIcon->setToolTip(tr("Proxy is <b>enabled</b>: %1").arg(ip_port_q)); + } else { + labelProxyIcon->show(); + } + } else { + labelProxyIcon->hide(); + } +} + void BitcoinGUI::showNormalIfMinimized(bool fToggleHidden) { if(!clientModel) diff --git a/src/qt/bitcoingui.h b/src/qt/bitcoingui.h index e59c71cd4f..8ce14f06c6 100644 --- a/src/qt/bitcoingui.h +++ b/src/qt/bitcoingui.h @@ -92,6 +92,7 @@ private: UnitDisplayStatusBarControl *unitDisplayControl; QLabel *labelWalletEncryptionIcon; QLabel *labelWalletHDStatusIcon; + QLabel *labelProxyIcon; QLabel *connectionsControl; QLabel *labelBlocksIcon; QLabel *progressBarLabel; @@ -209,6 +210,10 @@ public Q_SLOTS: void incomingTransaction(const QString& date, int unit, const CAmount& amount, const QString& type, const QString& address, const QString& label, const QString& walletName); #endif // ENABLE_WALLET +private: + /** Set the proxy-enabled icon as shown in the UI. */ + void updateProxyIcon(); + private Q_SLOTS: #ifdef ENABLE_WALLET /** Switch to overview (home) page */ diff --git a/src/qt/clientmodel.cpp b/src/qt/clientmodel.cpp index 37fd06ccc9..a623771aa0 100644 --- a/src/qt/clientmodel.cpp +++ b/src/qt/clientmodel.cpp @@ -17,6 +17,7 @@ #include <interfaces/node.h> #include <validation.h> #include <net.h> +#include <netbase.h> #include <txmempool.h> #include <ui_interface.h> #include <util.h> @@ -268,3 +269,13 @@ void ClientModel::unsubscribeFromCoreSignals() m_handler_notify_block_tip->disconnect(); m_handler_notify_header_tip->disconnect(); } + +bool ClientModel::getProxyInfo(std::string& ip_port) const +{ + proxyType ipv4, ipv6; + if (m_node.getProxy((Network) 1, ipv4) && m_node.getProxy((Network) 2, ipv6)) { + ip_port = ipv4.proxy.ToStringIPPort(); + return true; + } + return false; +} diff --git a/src/qt/clientmodel.h b/src/qt/clientmodel.h index a609222f7d..9d4fa74b7a 100644 --- a/src/qt/clientmodel.h +++ b/src/qt/clientmodel.h @@ -70,6 +70,8 @@ public: QString formatClientStartupTime() const; QString dataDir() const; + bool getProxyInfo(std::string& ip_port) const; + // caches for the best header mutable std::atomic<int> cachedBestHeaderHeight; mutable std::atomic<int64_t> cachedBestHeaderTime; diff --git a/src/qt/res/icons/proxy.png b/src/qt/res/icons/proxy.png Binary files differnew file mode 100644 index 0000000000..67c552d0de --- /dev/null +++ b/src/qt/res/icons/proxy.png diff --git a/src/qt/res/src/proxy.svg b/src/qt/res/src/proxy.svg new file mode 100644 index 0000000000..b42fa63948 --- /dev/null +++ b/src/qt/res/src/proxy.svg @@ -0,0 +1,70 @@ +<?xml version="1.0" encoding="UTF-8" standalone="no"?> +<!-- Created with Inkscape (http://www.inkscape.org/) --> + +<svg + xmlns:dc="http://purl.org/dc/elements/1.1/" + xmlns:cc="http://creativecommons.org/ns#" + xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" + xmlns:svg="http://www.w3.org/2000/svg" + xmlns="http://www.w3.org/2000/svg" + xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd" + xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape" + width="128px" + height="128px" + id="svg2991" + version="1.1" + inkscape:version="0.48.4 r9939" + sodipodi:docname="proxy.svg" + inkscape:export-xdpi="90" + inkscape:export-ydpi="90"> + <defs + id="defs2993" /> + <sodipodi:namedview + id="base" + pagecolor="#ffffff" + bordercolor="#666666" + borderopacity="1.0" + inkscape:pageopacity="0.0" + inkscape:pageshadow="2" + inkscape:zoom="3.8890872" + inkscape:cx="4.0410731" + inkscape:cy="31.916897" + inkscape:current-layer="layer1" + showgrid="true" + inkscape:document-units="px" + inkscape:grid-bbox="true" + inkscape:window-width="1920" + inkscape:window-height="1056" + inkscape:window-x="0" + inkscape:window-y="24" + inkscape:window-maximized="1" /> + <metadata + id="metadata2996"> + <rdf:RDF> + <cc:Work + rdf:about=""> + <dc:format>image/svg+xml</dc:format> + <dc:type + rdf:resource="http://purl.org/dc/dcmitype/StillImage" /> + <dc:title></dc:title> + </cc:Work> + </rdf:RDF> + </metadata> + <g + id="layer1" + inkscape:label="Layer 1" + inkscape:groupmode="layer"> + <text + xml:space="preserve" + style="font-size:40px;font-style:normal;font-weight:normal;line-height:125%;letter-spacing:0px;word-spacing:0px;fill:#000000;fill-opacity:1;stroke:none;font-family:Sans" + x="26.981934" + y="110.45972" + id="text2999" + sodipodi:linespacing="125%"><tspan + sodipodi:role="line" + id="tspan3001" + x="26.981934" + y="110.45972" + style="font-size:111px">P</tspan></text> + </g> +</svg> diff --git a/src/test/test_bitcoin.cpp b/src/test/test_bitcoin.cpp index 9857827f05..e9814edc23 100644 --- a/src/test/test_bitcoin.cpp +++ b/src/test/test_bitcoin.cpp @@ -39,6 +39,12 @@ FastRandomContext insecure_rand_ctx(insecure_rand_seed); extern bool fPrintToConsole; extern void noui_connect(); +std::ostream& operator<<(std::ostream& os, const uint256& num) +{ + os << num.ToString(); + return os; +} + BasicTestingSetup::BasicTestingSetup(const std::string& chainName) { SHA256AutoDetect(); diff --git a/src/test/test_bitcoin.h b/src/test/test_bitcoin.h index 1f91eb622c..d013613de2 100644 --- a/src/test/test_bitcoin.h +++ b/src/test/test_bitcoin.h @@ -120,4 +120,7 @@ struct TestMemPoolEntryHelper CBlock getBlock13b8a(); +// define an implicit conversion here so that uint256 may be used directly in BOOST_CHECK_* +std::ostream& operator<<(std::ostream& os, const uint256& num); + #endif diff --git a/src/test/validation_block_tests.cpp b/src/test/validation_block_tests.cpp new file mode 100644 index 0000000000..f835570168 --- /dev/null +++ b/src/test/validation_block_tests.cpp @@ -0,0 +1,184 @@ +// Copyright (c) 2018 The Bitcoin Core developers +// Distributed under the MIT software license, see the accompanying +// file COPYING or http://www.opensource.org/licenses/mit-license.php. + +#include <boost/test/unit_test.hpp> + +#include <chainparams.h> +#include <consensus/merkle.h> +#include <consensus/validation.h> +#include <miner.h> +#include <pow.h> +#include <random.h> +#include <test/test_bitcoin.h> +#include <validation.h> +#include <validationinterface.h> + +struct RegtestingSetup : public TestingSetup { + RegtestingSetup() : TestingSetup(CBaseChainParams::REGTEST) {} +}; + +BOOST_FIXTURE_TEST_SUITE(validation_block_tests, RegtestingSetup) + +struct TestSubscriber : public CValidationInterface { + uint256 m_expected_tip; + + TestSubscriber(uint256 tip) : m_expected_tip(tip) {} + + void UpdatedBlockTip(const CBlockIndex* pindexNew, const CBlockIndex* pindexFork, bool fInitialDownload) + { + BOOST_CHECK_EQUAL(m_expected_tip, pindexNew->GetBlockHash()); + } + + void BlockConnected(const std::shared_ptr<const CBlock>& block, const CBlockIndex* pindex, const std::vector<CTransactionRef>& txnConflicted) + { + BOOST_CHECK_EQUAL(m_expected_tip, block->hashPrevBlock); + BOOST_CHECK_EQUAL(m_expected_tip, pindex->pprev->GetBlockHash()); + + m_expected_tip = block->GetHash(); + } + + void BlockDisconnected(const std::shared_ptr<const CBlock>& block) + { + BOOST_CHECK_EQUAL(m_expected_tip, block->GetHash()); + + m_expected_tip = block->hashPrevBlock; + } +}; + +std::shared_ptr<CBlock> Block(const uint256& prev_hash) +{ + static int i = 0; + static uint64_t time = Params().GenesisBlock().nTime; + + CScript pubKey; + pubKey << i++ << OP_TRUE; + + auto ptemplate = BlockAssembler(Params()).CreateNewBlock(pubKey, false); + auto pblock = std::make_shared<CBlock>(ptemplate->block); + pblock->hashPrevBlock = prev_hash; + pblock->nTime = ++time; + + CMutableTransaction txCoinbase(*pblock->vtx[0]); + txCoinbase.vout.resize(1); + txCoinbase.vin[0].scriptWitness.SetNull(); + pblock->vtx[0] = MakeTransactionRef(std::move(txCoinbase)); + + return pblock; +} + +std::shared_ptr<CBlock> FinalizeBlock(std::shared_ptr<CBlock> pblock) +{ + pblock->hashMerkleRoot = BlockMerkleRoot(*pblock); + + while (!CheckProofOfWork(pblock->GetHash(), pblock->nBits, Params().GetConsensus())) { + ++(pblock->nNonce); + } + + return pblock; +} + +// construct a valid block +const std::shared_ptr<const CBlock> GoodBlock(const uint256& prev_hash) +{ + return FinalizeBlock(Block(prev_hash)); +} + +// construct an invalid block (but with a valid header) +const std::shared_ptr<const CBlock> BadBlock(const uint256& prev_hash) +{ + auto pblock = Block(prev_hash); + + CMutableTransaction coinbase_spend; + coinbase_spend.vin.push_back(CTxIn(COutPoint(pblock->vtx[0]->GetHash(), 0), CScript(), 0)); + coinbase_spend.vout.push_back(pblock->vtx[0]->vout[0]); + + CTransactionRef tx = MakeTransactionRef(coinbase_spend); + pblock->vtx.push_back(tx); + + auto ret = FinalizeBlock(pblock); + return ret; +} + +void BuildChain(const uint256& root, int height, const unsigned int invalid_rate, const unsigned int branch_rate, const unsigned int max_size, std::vector<std::shared_ptr<const CBlock>>& blocks) +{ + if (height <= 0 || blocks.size() >= max_size) return; + + bool gen_invalid = GetRand(100) < invalid_rate; + bool gen_fork = GetRand(100) < branch_rate; + + const std::shared_ptr<const CBlock> pblock = gen_invalid ? BadBlock(root) : GoodBlock(root); + blocks.push_back(pblock); + if (!gen_invalid) { + BuildChain(pblock->GetHash(), height - 1, invalid_rate, branch_rate, max_size, blocks); + } + + if (gen_fork) { + blocks.push_back(GoodBlock(root)); + BuildChain(blocks.back()->GetHash(), height - 1, invalid_rate, branch_rate, max_size, blocks); + } +} + +BOOST_AUTO_TEST_CASE(processnewblock_signals_ordering) +{ + // build a large-ish chain that's likely to have some forks + std::vector<std::shared_ptr<const CBlock>> blocks; + while (blocks.size() < 50) { + blocks.clear(); + BuildChain(Params().GenesisBlock().GetHash(), 100, 15, 10, 500, blocks); + } + + bool ignored; + CValidationState state; + std::vector<CBlockHeader> headers; + std::transform(blocks.begin(), blocks.end(), std::back_inserter(headers), [](std::shared_ptr<const CBlock> b) { return b->GetBlockHeader(); }); + + // Process all the headers so we understand the toplogy of the chain + BOOST_CHECK(ProcessNewBlockHeaders(headers, state, Params())); + + // Connect the genesis block and drain any outstanding events + ProcessNewBlock(Params(), std::make_shared<CBlock>(Params().GenesisBlock()), true, &ignored); + SyncWithValidationInterfaceQueue(); + + // subscribe to events (this subscriber will validate event ordering) + const CBlockIndex* initial_tip = nullptr; + { + LOCK(cs_main); + initial_tip = chainActive.Tip(); + } + TestSubscriber sub(initial_tip->GetBlockHash()); + RegisterValidationInterface(&sub); + + // create a bunch of threads that repeatedly process a block generated above at random + // this will create parallelism and randomness inside validation - the ValidationInterface + // will subscribe to events generated during block validation and assert on ordering invariance + boost::thread_group threads; + for (int i = 0; i < 10; i++) { + threads.create_thread([&blocks]() { + bool ignored; + for (int i = 0; i < 1000; i++) { + auto block = blocks[GetRand(blocks.size() - 1)]; + ProcessNewBlock(Params(), block, true, &ignored); + } + + // to make sure that eventually we process the full chain - do it here + for (auto block : blocks) { + if (block->vtx.size() == 1) { + bool processed = ProcessNewBlock(Params(), block, true, &ignored); + assert(processed); + } + } + }); + } + + threads.join_all(); + while (GetMainSignals().CallbacksPending() > 0) { + MilliSleep(100); + } + + UnregisterValidationInterface(&sub); + + BOOST_CHECK_EQUAL(sub.m_expected_tip, chainActive.Tip()->GetBlockHash()); +} + +BOOST_AUTO_TEST_SUITE_END() diff --git a/src/validation.cpp b/src/validation.cpp index f22ae7f9be..3971906424 100644 --- a/src/validation.cpp +++ b/src/validation.cpp @@ -145,6 +145,12 @@ private: */ std::set<CBlockIndex*> m_failed_blocks; + /** + * the ChainState CriticalSection + * A lock that must be held when modifying this ChainState - held in ActivateBestChain() + */ + CCriticalSection m_cs_chainstate; + public: CChain chainActive; BlockMap mapBlockIndex; @@ -2519,6 +2525,7 @@ void CChainState::PruneBlockIndexCandidates() { bool CChainState::ActivateBestChainStep(CValidationState& state, const CChainParams& chainparams, CBlockIndex* pindexMostWork, const std::shared_ptr<const CBlock>& pblock, bool& fInvalidFound, ConnectTrace& connectTrace) { AssertLockHeld(cs_main); + const CBlockIndex *pindexOldTip = chainActive.Tip(); const CBlockIndex *pindexFork = chainActive.FindFork(pindexMostWork); @@ -2635,6 +2642,12 @@ bool CChainState::ActivateBestChain(CValidationState &state, const CChainParams& // sanely for performance or correctness! AssertLockNotHeld(cs_main); + // ABC maintains a fair degree of expensive-to-calculate internal state + // because this function periodically releases cs_main so that it does not lock up other threads for too long + // during large connects - and to allow for e.g. the callback queue to drain + // we use m_cs_chainstate to enforce mutual exclusion so that only one caller may execute this function at a time + LOCK(m_cs_chainstate); + CBlockIndex *pindexMostWork = nullptr; CBlockIndex *pindexNewTip = nullptr; int nStopAtHeight = gArgs.GetArg("-stopatheight", DEFAULT_STOPATHEIGHT); @@ -2648,45 +2661,53 @@ 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); } } @@ -2710,6 +2731,7 @@ 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 3a5fed0106..0ca82235da 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. */ |