From b3e7de7ee6efb186efc272855ff1af5d9254b971 Mon Sep 17 00:00:00 2001 From: Russell Yanofsky Date: Wed, 1 Dec 2021 18:16:29 -0500 Subject: refactor: Reduce number of LoadChainstate return values --- src/init.cpp | 93 +++++++++++++----------------------------------------------- 1 file changed, 20 insertions(+), 73 deletions(-) (limited to 'src/init.cpp') diff --git a/src/init.cpp b/src/init.cpp index 83067a8bff..b80c171f11 100644 --- a/src/init.cpp +++ b/src/init.cpp @@ -108,8 +108,6 @@ using kernel::DumpMempool; using node::CacheSizes; using node::CalculateCacheSizes; -using node::ChainstateLoadVerifyError; -using node::ChainstateLoadingError; using node::DEFAULT_PERSIST_MEMPOOL; using node::DEFAULT_PRINTPRIORITY; using node::DEFAULT_STOPAFTERBLOCKIMPORT; @@ -1452,8 +1450,6 @@ bool AppInitMain(NodeContext& node, interfaces::BlockAndHeaderTipInfo* tip_info) node.chainman = std::make_unique(chainman_opts); ChainstateManager& chainman = *node.chainman; - bilingual_str strLoadError; - node::ChainstateLoadOptions options; options.mempool = Assert(node.mempool.get()); options.reindex = node::fReindex; @@ -1470,87 +1466,38 @@ bool AppInitMain(NodeContext& node, interfaces::BlockAndHeaderTipInfo* tip_info) uiInterface.InitMessage(_("Loading block index…").translated); const int64_t load_block_index_start_time = GetTimeMillis(); - std::optional maybe_load_error; - try { - maybe_load_error = LoadChainstate(chainman, cache_sizes, options); - } catch (const std::exception& e) { - LogPrintf("%s\n", e.what()); - maybe_load_error = ChainstateLoadingError::ERROR_GENERIC_BLOCKDB_OPEN_FAILED; - } - if (maybe_load_error.has_value()) { - switch (maybe_load_error.value()) { - case ChainstateLoadingError::ERROR_LOADING_BLOCK_DB: - strLoadError = _("Error loading block database"); - break; - case ChainstateLoadingError::ERROR_BAD_GENESIS_BLOCK: - // If the loaded chain has a wrong genesis, bail out immediately - // (we're likely using a testnet datadir, or the other way around). - return InitError(_("Incorrect or no genesis block found. Wrong datadir for network?")); - case ChainstateLoadingError::ERROR_PRUNED_NEEDS_REINDEX: - strLoadError = _("You need to rebuild the database using -reindex to go back to unpruned mode. This will redownload the entire blockchain"); - break; - case ChainstateLoadingError::ERROR_LOAD_GENESIS_BLOCK_FAILED: - strLoadError = _("Error initializing block database"); - break; - case ChainstateLoadingError::ERROR_CHAINSTATE_UPGRADE_FAILED: - return InitError(_("Unsupported chainstate database format found. " - "Please restart with -reindex-chainstate. This will " - "rebuild the chainstate database.")); - case ChainstateLoadingError::ERROR_REPLAYBLOCKS_FAILED: - strLoadError = _("Unable to replay blocks. You will need to rebuild the database using -reindex-chainstate."); - break; - case ChainstateLoadingError::ERROR_LOADCHAINTIP_FAILED: - strLoadError = _("Error initializing block database"); - break; - case ChainstateLoadingError::ERROR_GENERIC_BLOCKDB_OPEN_FAILED: - strLoadError = _("Error opening block database"); - break; - case ChainstateLoadingError::ERROR_BLOCKS_WITNESS_INSUFFICIENTLY_VALIDATED: - strLoadError = strprintf(_("Witness data for blocks after height %d requires validation. Please restart with -reindex."), - chainman.GetConsensus().SegwitHeight); - break; - case ChainstateLoadingError::SHUTDOWN_PROBED: - break; - } - } else { - std::optional maybe_verify_error; + auto catch_exceptions = [](auto&& f) { try { - uiInterface.InitMessage(_("Verifying blocks…").translated); - if (chainman.m_blockman.m_have_pruned && options.check_blocks > MIN_BLOCKS_TO_KEEP) { - LogPrintfCategory(BCLog::PRUNE, "pruned datadir may not have more than %d blocks; only checking available blocks\n", - MIN_BLOCKS_TO_KEEP); - } - maybe_verify_error = VerifyLoadedChainstate(chainman, options); + return f(); } catch (const std::exception& e) { LogPrintf("%s\n", e.what()); - maybe_verify_error = ChainstateLoadVerifyError::ERROR_GENERIC_FAILURE; + return std::make_tuple(node::ChainstateLoadStatus::FAILURE, _("Error opening block database")); } - if (maybe_verify_error.has_value()) { - switch (maybe_verify_error.value()) { - case ChainstateLoadVerifyError::ERROR_BLOCK_FROM_FUTURE: - 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; - case ChainstateLoadVerifyError::ERROR_CORRUPTED_BLOCK_DB: - strLoadError = _("Corrupted block database detected"); - break; - case ChainstateLoadVerifyError::ERROR_GENERIC_FAILURE: - strLoadError = _("Error opening block database"); - break; - } - } else { + }; + auto [status, error] = catch_exceptions([&]{ return LoadChainstate(chainman, cache_sizes, options); }); + if (status == node::ChainstateLoadStatus::SUCCESS) { + uiInterface.InitMessage(_("Verifying blocks…").translated); + if (chainman.m_blockman.m_have_pruned && options.check_blocks > MIN_BLOCKS_TO_KEEP) { + LogPrintfCategory(BCLog::PRUNE, "pruned datadir may not have more than %d blocks; only checking available blocks\n", + MIN_BLOCKS_TO_KEEP); + } + std::tie(status, error) = catch_exceptions([&]{ return VerifyLoadedChainstate(chainman, options);}); + if (status == node::ChainstateLoadStatus::SUCCESS) { fLoaded = true; LogPrintf(" block index %15dms\n", GetTimeMillis() - load_block_index_start_time); } } + if (status == node::ChainstateLoadStatus::FAILURE_INCOMPATIBLE_DB) { + return InitError(error); + } + if (!fLoaded && !ShutdownRequested()) { // first suggest a reindex if (!options.reindex) { bool fRet = uiInterface.ThreadSafeQuestion( - strLoadError + Untranslated(".\n\n") + _("Do you want to rebuild the block database now?"), - strLoadError.original + ".\nPlease restart with -reindex or -reindex-chainstate to recover.", + error + Untranslated(".\n\n") + _("Do you want to rebuild the block database now?"), + error.original + ".\nPlease restart with -reindex or -reindex-chainstate to recover.", "", CClientUIInterface::MSG_ERROR | CClientUIInterface::BTN_ABORT); if (fRet) { fReindex = true; @@ -1560,7 +1507,7 @@ bool AppInitMain(NodeContext& node, interfaces::BlockAndHeaderTipInfo* tip_info) return false; } } else { - return InitError(strLoadError); + return InitError(error); } } } -- cgit v1.2.3