diff options
Diffstat (limited to 'src/init.cpp')
| -rw-r--r-- | src/init.cpp | 137 |
1 files changed, 96 insertions, 41 deletions
diff --git a/src/init.cpp b/src/init.cpp index 672ef77e8..0ee828ce9 100644 --- a/src/init.cpp +++ b/src/init.cpp @@ -215,6 +215,21 @@ void Shutdown() fFeeEstimatesInitialized = false; } + // FlushStateToDisk generates a SetBestChain callback, which we should avoid missing + if (pcoinsTip != nullptr) { + FlushStateToDisk(); + } + + // After there are no more peers/RPC left to give us new data which may generate + // CValidationInterface callbacks, flush them... + GetMainSignals().FlushBackgroundCallbacks(); + + // Any future callbacks will be dropped. This should absolutely be safe - if + // missing a callback results in an unrecoverable situation, unclean shutdown + // would too. The only reason to do the above flushes is to let the wallet catch + // up with our current chain to avoid any strange pruning edge cases and make + // next startup faster by avoiding rescan. + { LOCK(cs_main); if (pcoinsTip != NULL) { @@ -251,6 +266,7 @@ void Shutdown() } #endif UnregisterAllValidationInterfaces(); + GetMainSignals().UnregisterBackgroundSignalScheduler(); #ifdef ENABLE_WALLET for (CWalletRef pwallet : vpwallets) { delete pwallet; @@ -465,7 +481,7 @@ std::string HelpMessage(HelpMessageMode mode) if (showDebug) { strUsage += HelpMessageOpt("-acceptnonstdtxn", strprintf("Relay and mine \"non-standard\" transactions (%sdefault: %u)", "testnet/regtest only; ", defaultChainParams->RequireStandard())); strUsage += HelpMessageOpt("-incrementalrelayfee=<amt>", strprintf("Fee rate (in %s/kB) used to define cost of relay, used for mempool limiting and BIP 125 replacement. (default: %s)", CURRENCY_UNIT, FormatMoney(DEFAULT_INCREMENTAL_RELAY_FEE))); - strUsage += HelpMessageOpt("-dustrelayfee=<amt>", strprintf("Fee rate (in %s/kB) used to defined dust, the value of an output such that it will cost about 1/3 of its value in fees at this fee rate to spend it. (default: %s)", CURRENCY_UNIT, FormatMoney(DUST_RELAY_TX_FEE))); + strUsage += HelpMessageOpt("-dustrelayfee=<amt>", strprintf("Fee rate (in %s/kB) used to defined dust, the value of an output such that it will cost more than its value in fees at this fee rate to spend it. (default: %s)", CURRENCY_UNIT, FormatMoney(DUST_RELAY_TX_FEE))); } strUsage += HelpMessageOpt("-bytespersigop", strprintf(_("Equivalent bytes per sigop in transactions for relay and mining (default: %u)"), DEFAULT_BYTES_PER_SIGOP)); strUsage += HelpMessageOpt("-datacarrier", strprintf(_("Relay and mine data carrier transactions (default: %u)"), DEFAULT_ACCEPT_DATACARRIER)); @@ -632,7 +648,7 @@ void ThreadImport(std::vector<fs::path> vImportFiles) fReindex = false; LogPrintf("Reindexing finished\n"); // To avoid ending up in a situation without genesis block, re-try initializing (no-op if reindexing worked): - InitBlockIndex(chainparams); + LoadGenesisBlock(chainparams); } // hardcoded $DATADIR/bootstrap.dat @@ -1147,6 +1163,8 @@ bool AppInitSanityChecks() // ********************************************************* Step 4: sanity checks // Initialize elliptic curve code + std::string sha256_algo = SHA256AutoDetect(); + LogPrintf("Using the '%s' SHA256 implementation\n", sha256_algo); RandomInit(); ECC_Start(); globalVerifyHandle.reset(new ECCVerifyHandle()); @@ -1156,13 +1174,13 @@ bool AppInitSanityChecks() return InitError(strprintf(_("Initialization sanity check failed. %s is shutting down."), _(PACKAGE_NAME))); // Probe the data directory lock to give an early error message, if possible + // We cannot hold the data directory lock here, as the forking for daemon() hasn't yet happened, + // and a fork will cause weird behavior to it. return LockDataDirectory(true); } -bool AppInitMain(boost::thread_group& threadGroup, CScheduler& scheduler) +bool AppInitLockDataDirectory() { - const CChainParams& chainparams = Params(); - // ********************************************************* Step 4a: application initialization // After daemonization get the data directory lock again and hold on to it until exit // This creates a slight window for a race condition to happen, however this condition is harmless: it // will at most make us exit without printing a message to console. @@ -1170,7 +1188,13 @@ bool AppInitMain(boost::thread_group& threadGroup, CScheduler& scheduler) // Detailed error printed inside LockDataDirectory return false; } + return true; +} +bool AppInitMain(boost::thread_group& threadGroup, CScheduler& scheduler) +{ + const CChainParams& chainparams = Params(); + // ********************************************************* Step 4a: application initialization #ifndef WIN32 CreatePidFile(GetPidFile(), getpid()); #endif @@ -1203,6 +1227,8 @@ bool AppInitMain(boost::thread_group& threadGroup, CScheduler& scheduler) CScheduler::Function serviceLoop = boost::bind(&CScheduler::serviceQueue, &scheduler); threadGroup.create_thread(boost::bind(&TraceThread<CScheduler::Function>, "scheduler", serviceLoop)); + GetMainSignals().RegisterBackgroundSignalScheduler(scheduler); + /* Start the RPC server already. It will be started in "warmup" mode * and not really process calls already (but it will signify connections * that the server is there and will be ready later). Warmup mode will @@ -1375,23 +1401,19 @@ bool AppInitMain(boost::thread_group& threadGroup, CScheduler& scheduler) delete pblocktree; pblocktree = new CBlockTreeDB(nBlockTreeDBCache, false, fReindex); - pcoinsdbview = new CCoinsViewDB(nCoinDBCache, false, fReindex || fReindexChainState); - pcoinscatcher = new CCoinsViewErrorCatcher(pcoinsdbview); if (fReindex) { pblocktree->WriteReindexing(true); //If we're reindexing in prune mode, wipe away unusable block files and all undo data files if (fPruneMode) CleanupBlockRevFiles(); - } else { - // If necessary, upgrade from older database format. - if (!pcoinsdbview->Upgrade()) { - strLoadError = _("Error upgrading chainstate database"); - break; - } } + if (fRequestShutdown) break; + // LoadBlockIndex will load fTxIndex from the db, or set it if + // we're reindexing. It will also load fHavePruned if we've + // ever removed a block file from disk. if (!LoadBlockIndex(chainparams)) { strLoadError = _("Error loading block database"); break; @@ -1402,12 +1424,6 @@ bool AppInitMain(boost::thread_group& threadGroup, CScheduler& scheduler) if (!mapBlockIndex.empty() && mapBlockIndex.count(chainparams.GetConsensus().hashGenesisBlock) == 0) return InitError(_("Incorrect or no genesis block found. Wrong datadir for network?")); - // Initialize the block index (no-op if non-empty database was already loaded) - if (!InitBlockIndex(chainparams)) { - strLoadError = _("Error initializing block database"); - break; - } - // Check for changed -txindex state if (fTxIndex != GetBoolArg("-txindex", DEFAULT_TXINDEX)) { strLoadError = _("You need to rebuild the database using -reindex-chainstate to change -txindex"); @@ -1421,14 +1437,49 @@ bool AppInitMain(boost::thread_group& threadGroup, CScheduler& scheduler) break; } + // At this point blocktree args are consistent with what's on disk. + // If we're not mid-reindex (based on disk + args), add a genesis block on disk. + // This is called again in ThreadImport in the reindex completes. + if (!fReindex && !LoadGenesisBlock(chainparams)) { + strLoadError = _("Error initializing block database"); + break; + } + + // At this point we're either in reindex or we've loaded a useful + // block tree into mapBlockIndex! + + pcoinsdbview = new CCoinsViewDB(nCoinDBCache, false, fReindex || fReindexChainState); + pcoinscatcher = new CCoinsViewErrorCatcher(pcoinsdbview); + + // If necessary, upgrade from older database format. + // This is a no-op if we cleared the coinsviewdb with -reindex or -reindex-chainstate + if (!pcoinsdbview->Upgrade()) { + strLoadError = _("Error upgrading chainstate database"); + break; + } + + // ReplayBlocks is a no-op if we cleared the coinsviewdb with -reindex or -reindex-chainstate if (!ReplayBlocks(chainparams, pcoinsdbview)) { strLoadError = _("Unable to replay blocks. You will need to rebuild the database using -reindex-chainstate."); break; } + + // The on-disk coinsdb is now in a good state, create the cache pcoinsTip = new CCoinsViewCache(pcoinscatcher); - LoadChainTip(chainparams); - if (!fReindex && chainActive.Tip() != NULL) { + if (!fReindex && !fReindexChainState) { + // LoadChainTip sets chainActive based on pcoinsTip's best block + if (!LoadChainTip(chainparams)) { + strLoadError = _("Error initializing block database"); + break; + } + assert(chainActive.Tip() != NULL); + } + + if (!fReindex) { + // 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 + // mapBlockIndex based on lack of available witness data. uiInterface.InitMessage(_("Rewinding blocks...")); if (!RewindBlockIndex(chainparams)) { strLoadError = _("Unable to rewind the database to a pre-fork state. You will need to redownload the blockchain"); @@ -1436,28 +1487,30 @@ bool AppInitMain(boost::thread_group& threadGroup, CScheduler& scheduler) } } - uiInterface.InitMessage(_("Verifying blocks...")); - if (fHavePruned && GetArg("-checkblocks", DEFAULT_CHECKBLOCKS) > MIN_BLOCKS_TO_KEEP) { - LogPrintf("Prune: pruned datadir may not have more than %d blocks; only checking available blocks", - MIN_BLOCKS_TO_KEEP); - } + if (!fReindex && !fReindexChainState) { + uiInterface.InitMessage(_("Verifying blocks...")); + if (fHavePruned && GetArg("-checkblocks", DEFAULT_CHECKBLOCKS) > MIN_BLOCKS_TO_KEEP) { + LogPrintf("Prune: pruned datadir may not have more than %d blocks; only checking available blocks", + MIN_BLOCKS_TO_KEEP); + } - { - LOCK(cs_main); - 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"); - break; + { + LOCK(cs_main); + 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"); + break; + } } - } - if (!CVerifyDB().VerifyDB(chainparams, pcoinsdbview, GetArg("-checklevel", DEFAULT_CHECKLEVEL), - GetArg("-checkblocks", DEFAULT_CHECKBLOCKS))) { - strLoadError = _("Corrupted block database detected"); - break; + if (!CVerifyDB().VerifyDB(chainparams, pcoinsdbview, GetArg("-checklevel", DEFAULT_CHECKLEVEL), + GetArg("-checkblocks", DEFAULT_CHECKBLOCKS))) { + strLoadError = _("Corrupted block database detected"); + break; + } } } catch (const std::exception& e) { LogPrintf("%s\n", e.what()); @@ -1496,7 +1549,9 @@ bool AppInitMain(boost::thread_group& threadGroup, CScheduler& scheduler) LogPrintf("Shutdown requested. Exiting.\n"); return false; } - LogPrintf(" block index %15dms\n", GetTimeMillis() - nStart); + if (fLoaded) { + LogPrintf(" block index %15dms\n", GetTimeMillis() - nStart); + } fs::path est_path = GetDataDir() / FEE_ESTIMATES_FILENAME; CAutoFile est_filein(fsbridge::fopen(est_path, "rb"), SER_DISK, CLIENT_VERSION); |