diff options
| -rw-r--r-- | src/init.cpp | 193 | ||||
| -rw-r--r-- | src/rpc/blockchain.cpp | 2 | ||||
| -rw-r--r-- | src/test/util/setup_common.cpp | 4 | ||||
| -rw-r--r-- | src/validation.cpp | 68 | ||||
| -rw-r--r-- | src/validation.h | 20 |
5 files changed, 165 insertions, 122 deletions
diff --git a/src/init.cpp b/src/init.cpp index 765c61b3db..56b63c8101 100644 --- a/src/init.cpp +++ b/src/init.cpp @@ -233,13 +233,12 @@ void Shutdown(NodeContext& node) } // FlushStateToDisk generates a ChainStateFlushed callback, which we should avoid missing - // - // g_chainstate is referenced here directly (instead of ::ChainstateActive()) because it - // may not have been initialized yet. { LOCK(cs_main); - if (g_chainstate && g_chainstate->CanFlushToDisk()) { - g_chainstate->ForceFlushStateToDisk(); + for (CChainState* chainstate : g_chainman.GetAll()) { + if (chainstate->CanFlushToDisk()) { + chainstate->ForceFlushStateToDisk(); + } } } @@ -263,9 +262,11 @@ void Shutdown(NodeContext& node) { LOCK(cs_main); - if (g_chainstate && g_chainstate->CanFlushToDisk()) { - g_chainstate->ForceFlushStateToDisk(); - g_chainstate->ResetCoinsViews(); + for (CChainState* chainstate : g_chainman.GetAll()) { + if (chainstate->CanFlushToDisk()) { + chainstate->ForceFlushStateToDisk(); + chainstate->ResetCoinsViews(); + } } pblocktree.reset(); } @@ -1502,17 +1503,18 @@ bool AppInitMain(NodeContext& node) bool fLoaded = false; while (!fLoaded && !ShutdownRequested()) { bool fReset = fReindex; + auto is_coinsview_empty = [&](CChainState* chainstate) EXCLUSIVE_LOCKS_REQUIRED(::cs_main) { + return fReset || fReindexChainState || chainstate->CoinsTip().GetBestBlock().IsNull(); + }; std::string strLoadError; uiInterface.InitMessage(_("Loading block index...").translated); do { const int64_t load_block_index_start_time = GetTimeMillis(); - bool is_coinsview_empty; try { LOCK(cs_main); - // This statement makes ::ChainstateActive() usable. - g_chainstate = MakeUnique<CChainState>(); + g_chainman.InitializeChainstate(); UnloadBlockIndex(); // new CBlockTreeDB tries to delete the existing file, which @@ -1565,43 +1567,53 @@ bool AppInitMain(NodeContext& node) // At this point we're either in reindex or we've loaded a useful // block tree into BlockIndex()! - ::ChainstateActive().InitCoinsDB( - /* cache_size_bytes */ nCoinDBCache, - /* in_memory */ false, - /* should_wipe */ fReset || fReindexChainState); - - ::ChainstateActive().CoinsErrorCatcher().AddReadErrCallback([]() { - uiInterface.ThreadSafeMessageBox( - _("Error reading from database, shutting down.").translated, - "", CClientUIInterface::MSG_ERROR); - }); - - // If necessary, upgrade from older database format. - // This is a no-op if we cleared the coinsviewdb with -reindex or -reindex-chainstate - if (!::ChainstateActive().CoinsDB().Upgrade()) { - strLoadError = _("Error upgrading chainstate database").translated; - break; - } - - // ReplayBlocks is a no-op if we cleared the coinsviewdb with -reindex or -reindex-chainstate - if (!::ChainstateActive().ReplayBlocks(chainparams)) { - strLoadError = _("Unable to replay blocks. You will need to rebuild the database using -reindex-chainstate.").translated; - break; - } - - // The on-disk coinsdb is now in a good state, create the cache - ::ChainstateActive().InitCoinsCache(); - assert(::ChainstateActive().CanFlushToDisk()); + bool failed_chainstate_init = false; + + for (CChainState* chainstate : g_chainman.GetAll()) { + LogPrintf("Initializing chainstate %s\n", chainstate->ToString()); + chainstate->InitCoinsDB( + /* cache_size_bytes */ nCoinDBCache, + /* in_memory */ false, + /* should_wipe */ fReset || fReindexChainState); + + chainstate->CoinsErrorCatcher().AddReadErrCallback([]() { + uiInterface.ThreadSafeMessageBox( + _("Error reading from database, shutting down.").translated, + "", CClientUIInterface::MSG_ERROR); + }); + + // If necessary, upgrade from older database format. + // This is a no-op if we cleared the coinsviewdb with -reindex or -reindex-chainstate + if (!chainstate->CoinsDB().Upgrade()) { + strLoadError = _("Error upgrading chainstate database").translated; + failed_chainstate_init = true; + break; + } - is_coinsview_empty = fReset || fReindexChainState || - ::ChainstateActive().CoinsTip().GetBestBlock().IsNull(); - if (!is_coinsview_empty) { - // LoadChainTip initializes the chain based on CoinsTip()'s best block - if (!::ChainstateActive().LoadChainTip(chainparams)) { - strLoadError = _("Error initializing block database").translated; + // ReplayBlocks is a no-op if we cleared the coinsviewdb with -reindex or -reindex-chainstate + if (!chainstate->ReplayBlocks(chainparams)) { + strLoadError = _("Unable to replay blocks. You will need to rebuild the database using -reindex-chainstate.").translated; + failed_chainstate_init = true; break; } - assert(::ChainActive().Tip() != nullptr); + + // The on-disk coinsdb is now in a good state, create the cache + chainstate->InitCoinsCache(); + assert(chainstate->CanFlushToDisk()); + + if (!is_coinsview_empty(chainstate)) { + // LoadChainTip initializes the chain based on CoinsTip()'s best block + if (!chainstate->LoadChainTip(chainparams)) { + strLoadError = _("Error initializing block database").translated; + failed_chainstate_init = true; + break; // out of the per-chainstate loop + } + assert(chainstate->m_chain.Tip() != nullptr); + } + } + + if (failed_chainstate_init) { + break; // out of the chainstate activation do-while } } catch (const std::exception& e) { LogPrintf("%s\n", e.what()); @@ -1609,49 +1621,75 @@ bool AppInitMain(NodeContext& node) break; } - if (!fReset) { - // Note that RewindBlockIndex MUST run even if we're about to -reindex-chainstate. - // It both disconnects blocks based on ::ChainActive(), and drops block data in - // BlockIndex() based on lack of available witness data. - uiInterface.InitMessage(_("Rewinding blocks...").translated); - if (!::ChainstateActive().RewindBlockIndex(chainparams)) { - strLoadError = _("Unable to rewind the database to a pre-fork state. You will need to redownload the blockchain").translated; - break; + bool failed_rewind{false}; + + for (CChainState* chainstate : g_chainman.GetAll()) { + if (!fReset) { + // Note that RewindBlockIndex MUST run even if we're about to -reindex-chainstate. + // It both disconnects blocks based on the chainstate, and drops block data in + // BlockIndex() based on lack of available witness data. + uiInterface.InitMessage(_("Rewinding blocks...").translated); + if (!chainstate->RewindBlockIndex(chainparams)) { + strLoadError = _( + "Unable to rewind the database to a pre-fork state. " + "You will need to redownload the blockchain").translated; + failed_rewind = true; + break; // out of the per-chainstate loop + } } } + if (failed_rewind) { + break; // out of the chainstate activation do-while + } + + bool failed_verification = false; + try { LOCK(cs_main); - if (!is_coinsview_empty) { - uiInterface.InitMessage(_("Verifying blocks...").translated); - if (fHavePruned && gArgs.GetArg("-checkblocks", DEFAULT_CHECKBLOCKS) > MIN_BLOCKS_TO_KEEP) { - LogPrintf("Prune: pruned datadir may not have more than %d blocks; only checking available blocks\n", - MIN_BLOCKS_TO_KEEP); - } - CBlockIndex* tip = ::ChainActive().Tip(); - RPCNotifyBlockChange(true, tip); - if (tip && tip->nTime > GetAdjustedTime() + 2 * 60 * 60) { - strLoadError = _("The block database contains a block which appears to be from the future. " - "This may be due to your computer's date and time being set incorrectly. " - "Only rebuild the block database if you are sure that your computer's date and time are correct").translated; - break; - } - - if (!CVerifyDB().VerifyDB(chainparams, &::ChainstateActive().CoinsDB(), gArgs.GetArg("-checklevel", DEFAULT_CHECKLEVEL), - gArgs.GetArg("-checkblocks", DEFAULT_CHECKBLOCKS))) { - strLoadError = _("Corrupted block database detected").translated; - break; + for (CChainState* chainstate : g_chainman.GetAll()) { + if (!is_coinsview_empty(chainstate)) { + uiInterface.InitMessage(_("Verifying blocks...").translated); + if (fHavePruned && gArgs.GetArg("-checkblocks", DEFAULT_CHECKBLOCKS) > MIN_BLOCKS_TO_KEEP) { + LogPrintf("Prune: pruned datadir may not have more than %d blocks; only checking available blocks\n", + MIN_BLOCKS_TO_KEEP); + } + + const CBlockIndex* tip = chainstate->m_chain.Tip(); + RPCNotifyBlockChange(true, tip); + if (tip && tip->nTime > GetAdjustedTime() + 2 * 60 * 60) { + strLoadError = _("The block database contains a block which appears to be from the future. " + "This may be due to your computer's date and time being set incorrectly. " + "Only rebuild the block database if you are sure that your computer's date and time are correct").translated; + failed_verification = true; + break; + } + + // Only verify the DB of the active chainstate. This is fixed in later + // work when we allow VerifyDB to be parameterized by chainstate. + if (&::ChainstateActive() == chainstate && + !CVerifyDB().VerifyDB( + chainparams, &chainstate->CoinsDB(), + gArgs.GetArg("-checklevel", DEFAULT_CHECKLEVEL), + gArgs.GetArg("-checkblocks", DEFAULT_CHECKBLOCKS))) { + strLoadError = _("Corrupted block database detected").translated; + failed_verification = true; + break; + } } } } catch (const std::exception& e) { LogPrintf("%s\n", e.what()); strLoadError = _("Error opening block database").translated; + failed_verification = true; break; } - fLoaded = true; - LogPrintf(" block index %15dms\n", GetTimeMillis() - load_block_index_start_time); + if (!failed_verification) { + fLoaded = true; + LogPrintf(" block index %15dms\n", GetTimeMillis() - load_block_index_start_time); + } } while(false); if (!fLoaded && !ShutdownRequested()) { @@ -1715,8 +1753,11 @@ bool AppInitMain(NodeContext& node) LogPrintf("Unsetting NODE_NETWORK on prune mode\n"); nLocalServices = ServiceFlags(nLocalServices & ~NODE_NETWORK); if (!fReindex) { - uiInterface.InitMessage(_("Pruning blockstore...").translated); - ::ChainstateActive().PruneAndFlush(); + LOCK(cs_main); + for (CChainState* chainstate : g_chainman.GetAll()) { + uiInterface.InitMessage(_("Pruning blockstore...").translated); + chainstate->PruneAndFlush(); + } } } diff --git a/src/rpc/blockchain.cpp b/src/rpc/blockchain.cpp index 256876a3d1..9de2e2e5a1 100644 --- a/src/rpc/blockchain.cpp +++ b/src/rpc/blockchain.cpp @@ -1319,7 +1319,7 @@ static UniValue getchaintips(const JSONRPCRequest& request) /* * Idea: the set of chain tips is ::ChainActive().tip, plus orphan blocks which do not have another orphan building off of them. * Algorithm: - * - Make one pass through g_blockman.m_block_index, picking out the orphan blocks, and also storing a set of the orphan block's pprev pointers. + * - Make one pass through BlockIndex(), picking out the orphan blocks, and also storing a set of the orphan block's pprev pointers. * - Iterate through the orphan blocks. If the block isn't pointed to by another orphan, it is a chain tip. * - add ::ChainActive().Tip() */ diff --git a/src/test/util/setup_common.cpp b/src/test/util/setup_common.cpp index e19a96eafc..dacdce0acb 100644 --- a/src/test/util/setup_common.cpp +++ b/src/test/util/setup_common.cpp @@ -111,7 +111,7 @@ TestingSetup::TestingSetup(const std::string& chainName) : BasicTestingSetup(cha GetMainSignals().RegisterBackgroundSignalScheduler(*g_rpc_node->scheduler); pblocktree.reset(new CBlockTreeDB(1 << 20, true)); - g_chainstate = MakeUnique<CChainState>(); + g_chainman.InitializeChainstate(); ::ChainstateActive().InitCoinsDB( /* cache_size_bytes */ 1 << 23, /* in_memory */ true, /* should_wipe */ false); assert(!::ChainstateActive().CanFlushToDisk()); @@ -153,7 +153,7 @@ TestingSetup::~TestingSetup() m_node.mempool = nullptr; m_node.scheduler.reset(); UnloadBlockIndex(); - g_chainstate.reset(); + g_chainman.Reset(); pblocktree.reset(); } diff --git a/src/validation.cpp b/src/validation.cpp index 9d4cdf6eb9..77b6e7c051 100644 --- a/src/validation.cpp +++ b/src/validation.cpp @@ -77,20 +77,17 @@ bool CBlockIndexWorkComparator::operator()(const CBlockIndex *pa, const CBlockIn return false; } -namespace { -BlockManager g_blockman; -} // anon namespace - -std::unique_ptr<CChainState> g_chainstate; +ChainstateManager g_chainman; -CChainState& ChainstateActive() { - assert(g_chainstate); - return *g_chainstate; +CChainState& ChainstateActive() +{ + assert(g_chainman.m_active_chainstate); + return *g_chainman.m_active_chainstate; } -CChain& ChainActive() { - assert(g_chainstate); - return g_chainstate->m_chain; +CChain& ChainActive() +{ + return ::ChainstateActive().m_chain; } /** @@ -152,8 +149,8 @@ namespace { CBlockIndex* LookupBlockIndex(const uint256& hash) { AssertLockHeld(cs_main); - BlockMap::const_iterator it = g_blockman.m_block_index.find(hash); - return it == g_blockman.m_block_index.end() ? nullptr : it->second; + BlockMap::const_iterator it = g_chainman.BlockIndex().find(hash); + return it == g_chainman.BlockIndex().end() ? nullptr : it->second; } CBlockIndex* FindForkInGlobalIndex(const CChain& chain, const CBlockLocator& locator) @@ -1243,13 +1240,10 @@ void CoinsViews::InitCache() m_cacheview = MakeUnique<CCoinsViewCache>(&m_catcherview); } -// NOTE: for now m_blockman is set to a global, but this will be changed -// in a future commit. -CChainState::CChainState(uint256 from_snapshot_blockhash) - : m_blockman(g_blockman), +CChainState::CChainState(BlockManager& blockman, uint256 from_snapshot_blockhash) + : m_blockman(blockman), m_from_snapshot_blockhash(from_snapshot_blockhash) {} - void CChainState::InitCoinsDB( size_t cache_size_bytes, bool in_memory, @@ -1301,7 +1295,7 @@ static CBlockIndex *pindexBestForkTip = nullptr, *pindexBestForkBase = nullptr; BlockMap& BlockIndex() { - return g_blockman.m_block_index; + return g_chainman.m_blockman.m_block_index; } static void AlertNotify(const std::string& strMessage) @@ -3471,7 +3465,7 @@ static bool ContextualCheckBlockHeader(const CBlockHeader& block, BlockValidatio if (fCheckpointsEnabled) { // Don't accept any forks from the main chain prior to last checkpoint. // GetLastCheckpoint finds the last checkpoint in MapCheckpoints that's in our - // g_blockman.m_block_index. + // BlockIndex(). CBlockIndex* pcheckpoint = GetLastCheckpoint(params.Checkpoints()); if (pcheckpoint && nHeight < pcheckpoint->nHeight) { LogPrintf("ERROR: %s: forked chain older than last checkpoint (height %d)\n", __func__, nHeight); @@ -3679,7 +3673,8 @@ bool ProcessNewBlockHeaders(const std::vector<CBlockHeader>& headers, BlockValid LOCK(cs_main); for (const CBlockHeader& header : headers) { CBlockIndex *pindex = nullptr; // Use a temp pindex instead of ppindex to avoid a const_cast - bool accepted = g_blockman.AcceptBlockHeader(header, state, chainparams, &pindex); + bool accepted = g_chainman.m_blockman.AcceptBlockHeader( + header, state, chainparams, &pindex); ::ChainstateActive().CheckBlockIndex(chainparams.GetConsensus()); if (!accepted) { @@ -3881,7 +3876,7 @@ void PruneOneBlockFile(const int fileNumber) { LOCK(cs_LastBlockFile); - for (const auto& entry : g_blockman.m_block_index) { + for (const auto& entry : g_chainman.BlockIndex()) { CBlockIndex* pindex = entry.second; if (pindex->nFile == fileNumber) { pindex->nStatus &= ~BLOCK_HAVE_DATA; @@ -3895,12 +3890,12 @@ void PruneOneBlockFile(const int fileNumber) // to be downloaded again in order to consider its chain, at which // point it would be considered as a candidate for // m_blocks_unlinked or setBlockIndexCandidates. - auto range = g_blockman.m_blocks_unlinked.equal_range(pindex->pprev); + auto range = g_chainman.m_blockman.m_blocks_unlinked.equal_range(pindex->pprev); while (range.first != range.second) { std::multimap<CBlockIndex *, CBlockIndex *>::iterator _it = range.first; range.first++; if (_it->second == pindex) { - g_blockman.m_blocks_unlinked.erase(_it); + g_chainman.m_blockman.m_blocks_unlinked.erase(_it); } } } @@ -4137,9 +4132,11 @@ void BlockManager::Unload() { bool static LoadBlockIndexDB(const CChainParams& chainparams) EXCLUSIVE_LOCKS_REQUIRED(cs_main) { - if (!g_blockman.LoadBlockIndex( - chainparams.GetConsensus(), *pblocktree, ::ChainstateActive().setBlockIndexCandidates)) + if (!g_chainman.m_blockman.LoadBlockIndex( + chainparams.GetConsensus(), *pblocktree, + ::ChainstateActive().setBlockIndexCandidates)) { return false; + } // Load block file info pblocktree->ReadLastBlockFile(nLastBlockFile); @@ -4161,7 +4158,7 @@ bool static LoadBlockIndexDB(const CChainParams& chainparams) EXCLUSIVE_LOCKS_RE // Check presence of blk files LogPrintf("Checking all blk files are present...\n"); std::set<int> setBlkDataFiles; - for (const std::pair<const uint256, CBlockIndex*>& item : g_blockman.m_block_index) + for (const std::pair<const uint256, CBlockIndex*>& item : g_chainman.BlockIndex()) { CBlockIndex* pindex = item.second; if (pindex->nStatus & BLOCK_HAVE_DATA) { @@ -4564,8 +4561,7 @@ void CChainState::UnloadBlockIndex() { void UnloadBlockIndex() { LOCK(cs_main); - ::ChainActive().SetTip(nullptr); - g_blockman.Unload(); + g_chainman.Unload(); pindexBestInvalid = nullptr; pindexBestHeader = nullptr; mempool.clear(); @@ -4578,8 +4574,6 @@ void UnloadBlockIndex() warningcache[b].clear(); } fHavePruned = false; - - ::ChainstateActive().UnloadBlockIndex(); } bool LoadBlockIndex(const CChainParams& chainparams) @@ -4589,7 +4583,7 @@ bool LoadBlockIndex(const CChainParams& chainparams) if (!fReindex) { bool ret = LoadBlockIndexDB(chainparams); if (!ret) return false; - needs_init = g_blockman.m_block_index.empty(); + needs_init = g_chainman.m_blockman.m_block_index.empty(); } if (needs_init) { @@ -5135,10 +5129,10 @@ public: CMainCleanup() {} ~CMainCleanup() { // block headers - BlockMap::iterator it1 = g_blockman.m_block_index.begin(); - for (; it1 != g_blockman.m_block_index.end(); it1++) + BlockMap::iterator it1 = g_chainman.BlockIndex().begin(); + for (; it1 != g_chainman.BlockIndex().end(); it1++) delete (*it1).second; - g_blockman.m_block_index.clear(); + g_chainman.BlockIndex().clear(); } }; static CMainCleanup instance_of_cmaincleanup; @@ -5176,7 +5170,7 @@ CChainState& ChainstateManager::InitializeChainstate(const uint256& snapshot_blo throw std::logic_error("should not be overwriting a chainstate"); } - to_modify.reset(new CChainState(snapshot_blockhash)); + to_modify.reset(new CChainState(m_blockman, snapshot_blockhash)); // Snapshot chainstates and initial IBD chaintates always become active. if (is_snapshot || (!is_snapshot && !m_active_chainstate)) { @@ -5220,6 +5214,8 @@ void ChainstateManager::Unload() chainstate->m_chain.SetTip(nullptr); chainstate->UnloadBlockIndex(); } + + m_blockman.Unload(); } void ChainstateManager::Reset() diff --git a/src/validation.h b/src/validation.h index 3b160ac799..901f6d22bd 100644 --- a/src/validation.h +++ b/src/validation.h @@ -592,8 +592,7 @@ private: std::unique_ptr<CoinsViews> m_coins_views; public: - explicit CChainState(BlockManager& blockman) : m_blockman(blockman) {} - explicit CChainState(uint256 from_snapshot_blockhash = uint256()); + explicit CChainState(BlockManager& blockman, uint256 from_snapshot_blockhash = uint256()); /** * Initialize the CoinsViews UTXO set database management data structures. The in-memory @@ -839,9 +838,14 @@ private: bool m_snapshot_validated{false}; // For access to m_active_chainstate. + friend CChainState& ChainstateActive(); friend CChain& ChainActive(); public: + //! A single BlockManager instance is shared across each constructed + //! chainstate to avoid duplicating block metadata. + BlockManager m_blockman GUARDED_BY(::cs_main); + //! Instantiate a new chainstate and assign it based upon whether it is //! from a snapshot. //! @@ -858,6 +862,11 @@ public: int ActiveHeight() const { return ActiveChain().Height(); } CBlockIndex* ActiveTip() const { return ActiveChain().Tip(); } + BlockMap& BlockIndex() EXCLUSIVE_LOCKS_REQUIRED(::cs_main) + { + return m_blockman.m_block_index; + } + bool IsSnapshotActive() const; Optional<uint256> SnapshotBlockhash() const; @@ -885,6 +894,8 @@ public: void Reset(); }; +extern ChainstateManager g_chainman; + /** @returns the most-work valid chainstate. */ CChainState& ChainstateActive(); @@ -894,11 +905,6 @@ CChain& ChainActive(); /** @returns the global block index map. */ BlockMap& BlockIndex(); -// Most often ::ChainstateActive() should be used instead of this, but some code -// may not be able to assume that this has been initialized yet and so must use it -// directly, e.g. init.cpp. -extern std::unique_ptr<CChainState> g_chainstate; - /** Global variable that points to the active block tree (protected by cs_main) */ extern std::unique_ptr<CBlockTreeDB> pblocktree; |