// Copyright (c) 2009-2010 Satoshi Nakamoto // Copyright (c) 2009-2012 The Bitcoin developers // Distributed under the MIT/X11 software license, see the accompanying // file COPYING or http://www.opensource.org/licenses/mit-license.php. #include "txdb.h" #include "walletdb.h" #include "bitcoinrpc.h" #include "net.h" #include "init.h" #include "util.h" #include "ui_interface.h" #include #include #include #include #include #include #ifndef WIN32 #include #endif using namespace std; using namespace boost; CWallet* pwalletMain; CClientUIInterface uiInterface; // Used to pass flags to the Bind() function enum BindFlags { BF_NONE = 0, BF_EXPLICIT = (1U << 0), BF_REPORT_ERROR = (1U << 1) }; ////////////////////////////////////////////////////////////////////////////// // // Shutdown // // // Thread management and startup/shutdown: // // The network-processing threads are all part of a thread group // created by AppInit() or the Qt main() function. // // A clean exit happens when StartShutdown() or the SIGTERM // signal handler sets fRequestShutdown, which triggers // the DetectShutdownThread(), which interrupts the main thread group. // DetectShutdownThread() then exits, which causes AppInit() to // continue (it .joins the shutdown thread). // Shutdown() is then // called to clean up database connections, and stop other // threads that should only be stopped after the main network-processing // threads have exited. // // Note that if running -daemon the parent process returns from AppInit2 // before adding any threads to the threadGroup, so .join_all() returns // immediately and the parent exits from main(). // // Shutdown for Qt is very similar, only it uses a QTimer to detect // fRequestShutdown getting set (either by RPC stop or SIGTERM) // and then does the normal Qt shutdown thing. // volatile bool fRequestShutdown = false; void StartShutdown() { fRequestShutdown = true; } static CCoinsViewDB *pcoinsdbview; void Shutdown() { static CCriticalSection cs_Shutdown; TRY_LOCK(cs_Shutdown, lockShutdown); if (!lockShutdown) return; RenameThread("bitcoin-shutoff"); nTransactionsUpdated++; StopRPCThreads(); bitdb.Flush(false); StopNode(); { LOCK(cs_main); if (pblocktree) pblocktree->Flush(); if (pcoinsTip) pcoinsTip->Flush(); delete pcoinsTip; pcoinsTip = NULL; delete pcoinsdbview; pcoinsdbview = NULL; delete pblocktree; pblocktree = NULL; } bitdb.Flush(true); boost::filesystem::remove(GetPidFile()); UnregisterWallet(pwalletMain); delete pwalletMain; } // // Signal handlers are very limited in what they are allowed to do, so: // void DetectShutdownThread(boost::thread_group* threadGroup) { // Tell the main threads to shutdown. while (!fRequestShutdown) { MilliSleep(200); if (fRequestShutdown) threadGroup->interrupt_all(); } } void HandleSIGTERM(int) { fRequestShutdown = true; } void HandleSIGHUP(int) { fReopenDebugLog = true; } ////////////////////////////////////////////////////////////////////////////// // // Start // #if !defined(QT_GUI) bool AppInit(int argc, char* argv[]) { boost::thread_group threadGroup; boost::thread* detectShutdownThread = NULL; bool fRet = false; try { // // Parameters // // If Qt is used, parameters/bitcoin.conf are parsed in qt/bitcoin.cpp's main() ParseParameters(argc, argv); if (!boost::filesystem::is_directory(GetDataDir(false))) { fprintf(stderr, "Error: Specified directory does not exist\n"); Shutdown(); } ReadConfigFile(mapArgs, mapMultiArgs); if (mapArgs.count("-?") || mapArgs.count("--help")) { // First part of help message is specific to bitcoind / RPC client std::string strUsage = _("Bitcoin version") + " " + FormatFullVersion() + "\n\n" + _("Usage:") + "\n" + " bitcoind [options] " + "\n" + " bitcoind [options] [params] " + _("Send command to -server or bitcoind") + "\n" + " bitcoind [options] help " + _("List commands") + "\n" + " bitcoind [options] help " + _("Get help for a command") + "\n"; strUsage += "\n" + HelpMessage(); fprintf(stdout, "%s", strUsage.c_str()); return false; } // Command-line RPC for (int i = 1; i < argc; i++) if (!IsSwitchChar(argv[i][0]) && !boost::algorithm::istarts_with(argv[i], "bitcoin:")) fCommandLine = true; if (fCommandLine) { int ret = CommandLineRPC(argc, argv); exit(ret); } #if !defined(WIN32) fDaemon = GetBoolArg("-daemon"); if (fDaemon) { // Daemonize pid_t pid = fork(); if (pid < 0) { fprintf(stderr, "Error: fork() returned %d errno %d\n", pid, errno); return false; } if (pid > 0) // Parent process, pid is child process id { CreatePidFile(GetPidFile(), pid); return true; } // Child process falls through to rest of initialization pid_t sid = setsid(); if (sid < 0) fprintf(stderr, "Error: setsid() returned %d errno %d\n", sid, errno); } #endif detectShutdownThread = new boost::thread(boost::bind(&DetectShutdownThread, &threadGroup)); fRet = AppInit2(threadGroup); } catch (std::exception& e) { PrintExceptionContinue(&e, "AppInit()"); } catch (...) { PrintExceptionContinue(NULL, "AppInit()"); } if (!fRet) { if (detectShutdownThread) detectShutdownThread->interrupt(); threadGroup.interrupt_all(); } if (detectShutdownThread) { detectShutdownThread->join(); delete detectShutdownThread; detectShutdownThread = NULL; } Shutdown(); return fRet; } extern void noui_connect(); int main(int argc, char* argv[]) { bool fRet = false; // Connect bitcoind signal handlers noui_connect(); fRet = AppInit(argc, argv); if (fRet && fDaemon) return 0; return (fRet ? 0 : 1); } #endif bool static InitError(const std::string &str) { uiInterface.ThreadSafeMessageBox(str, "", CClientUIInterface::MSG_ERROR); return false; } bool static InitWarning(const std::string &str) { uiInterface.ThreadSafeMessageBox(str, "", CClientUIInterface::MSG_WARNING); return true; } bool static Bind(const CService &addr, unsigned int flags) { if (!(flags & BF_EXPLICIT) && IsLimited(addr)) return false; std::string strError; if (!BindListenPort(addr, strError)) { if (flags & BF_REPORT_ERROR) return InitError(strError); return false; } return true; } // Core-specific options shared between UI and daemon std::string HelpMessage() { string strUsage = _("Options:") + "\n" + " -? " + _("This help message") + "\n" + " -conf= " + _("Specify configuration file (default: bitcoin.conf)") + "\n" + " -pid= " + _("Specify pid file (default: bitcoind.pid)") + "\n" + " -gen " + _("Generate coins") + "\n" + " -gen=0 " + _("Don't generate coins") + "\n" + " -datadir= " + _("Specify data directory") + "\n" + " -dbcache= " + _("Set database cache size in megabytes (default: 25)") + "\n" + " -timeout= " + _("Specify connection timeout in milliseconds (default: 5000)") + "\n" + " -proxy= " + _("Connect through socks proxy") + "\n" + " -socks= " + _("Select the version of socks proxy to use (4-5, default: 5)") + "\n" + " -tor= " + _("Use proxy to reach tor hidden services (default: same as -proxy)") + "\n" " -dns " + _("Allow DNS lookups for -addnode, -seednode and -connect") + "\n" + " -port= " + _("Listen for connections on (default: 8333 or testnet: 18333)") + "\n" + " -maxconnections= " + _("Maintain at most connections to peers (default: 125)") + "\n" + " -addnode= " + _("Add a node to connect to and attempt to keep the connection open") + "\n" + " -connect= " + _("Connect only to the specified node(s)") + "\n" + " -seednode= " + _("Connect to a node to retrieve peer addresses, and disconnect") + "\n" + " -externalip= " + _("Specify your own public address") + "\n" + " -onlynet= " + _("Only connect to nodes in network (IPv4, IPv6 or Tor)") + "\n" + " -discover " + _("Discover own IP address (default: 1 when listening and no -externalip)") + "\n" + " -checkpoints " + _("Only accept block chain matching built-in checkpoints (default: 1)") + "\n" + " -listen " + _("Accept connections from outside (default: 1 if no -proxy or -connect)") + "\n" + " -bind= " + _("Bind to given address and always listen on it. Use [host]:port notation for IPv6") + "\n" + " -dnsseed " + _("Find peers using DNS lookup (default: 1 unless -connect)") + "\n" + " -banscore= " + _("Threshold for disconnecting misbehaving peers (default: 100)") + "\n" + " -bantime= " + _("Number of seconds to keep misbehaving peers from reconnecting (default: 86400)") + "\n" + " -maxreceivebuffer= " + _("Maximum per-connection receive buffer, *1000 bytes (default: 5000)") + "\n" + " -maxsendbuffer= " + _("Maximum per-connection send buffer, *1000 bytes (default: 1000)") + "\n" + #ifdef USE_UPNP #if USE_UPNP " -upnp " + _("Use UPnP to map the listening port (default: 1 when listening)") + "\n" + #else " -upnp " + _("Use UPnP to map the listening port (default: 0)") + "\n" + #endif #endif " -paytxfee= " + _("Fee per KB to add to transactions you send") + "\n" + #ifdef QT_GUI " -server " + _("Accept command line and JSON-RPC commands") + "\n" + #endif #if !defined(WIN32) && !defined(QT_GUI) " -daemon " + _("Run in the background as a daemon and accept commands") + "\n" + #endif " -testnet " + _("Use the test network") + "\n" + " -debug " + _("Output extra debugging information. Implies all other -debug* options") + "\n" + " -debugnet " + _("Output extra network debugging information") + "\n" + " -logtimestamps " + _("Prepend debug output with timestamp") + "\n" + " -shrinkdebugfile " + _("Shrink debug.log file on client startup (default: 1 when no -debug)") + "\n" + " -printtoconsole " + _("Send trace/debug info to console instead of debug.log file") + "\n" + #ifdef WIN32 " -printtodebugger " + _("Send trace/debug info to debugger") + "\n" + #endif " -rpcuser= " + _("Username for JSON-RPC connections") + "\n" + " -rpcpassword= " + _("Password for JSON-RPC connections") + "\n" + " -rpcport= " + _("Listen for JSON-RPC connections on (default: 8332 or testnet: 18332)") + "\n" + " -rpcallowip= " + _("Allow JSON-RPC connections from specified IP address") + "\n" + " -rpcconnect= " + _("Send commands to node running on (default: 127.0.0.1)") + "\n" + " -rpcthreads= " + _("Use this many threads to service RPC calls (default: 4)") + "\n" + " -blocknotify= " + _("Execute command when the best block changes (%s in cmd is replaced by block hash)") + "\n" + " -walletnotify= " + _("Execute command when a wallet transaction changes (%s in cmd is replaced by TxID)") + "\n" + " -alertnotify= " + _("Execute command when a relevant alert is received (%s in cmd is replaced by message)") + "\n" + " -upgradewallet " + _("Upgrade wallet to latest format") + "\n" + " -keypool= " + _("Set key pool size to (default: 100)") + "\n" + " -rescan " + _("Rescan the block chain for missing wallet transactions") + "\n" + " -salvagewallet " + _("Attempt to recover private keys from a corrupt wallet.dat") + "\n" + " -checkblocks= " + _("How many blocks to check at startup (default: 288, 0 = all)") + "\n" + " -checklevel= " + _("How thorough the block verification is (0-4, default: 3)") + "\n" + " -txindex " + _("Maintain a full transaction index (default: 0)") + "\n" + " -loadblock= " + _("Imports blocks from external blk000??.dat file") + "\n" + " -reindex " + _("Rebuild block chain index from current blk000??.dat files") + "\n" + " -par=N " + _("Set the number of script verification threads (1-16, 0=auto, default: 0)") + "\n" + "\n" + _("Block creation options:") + "\n" + " -blockminsize= " + _("Set minimum block size in bytes (default: 0)") + "\n" + " -blockmaxsize= " + _("Set maximum block size in bytes (default: 250000)") + "\n" + " -blockprioritysize= " + _("Set maximum size of high-priority/low-fee transactions in bytes (default: 27000)") + "\n" + "\n" + _("SSL options: (see the Bitcoin Wiki for SSL setup instructions)") + "\n" + " -rpcssl " + _("Use OpenSSL (https) for JSON-RPC connections") + "\n" + " -rpcsslcertificatechainfile= " + _("Server certificate file (default: server.cert)") + "\n" + " -rpcsslprivatekeyfile= " + _("Server private key (default: server.pem)") + "\n" + " -rpcsslciphers= " + _("Acceptable ciphers (default: TLSv1+HIGH:!SSLv2:!aNULL:!eNULL:!AH:!3DES:@STRENGTH)") + "\n"; return strUsage; } struct CImportingNow { CImportingNow() { assert(fImporting == false); fImporting = true; } ~CImportingNow() { assert(fImporting == true); fImporting = false; } }; void ThreadImport(std::vector vImportFiles) { RenameThread("bitcoin-loadblk"); // -reindex if (fReindex) { CImportingNow imp; int nFile = 0; while (true) { CDiskBlockPos pos(nFile, 0); FILE *file = OpenBlockFile(pos, true); if (!file) break; printf("Reindexing block file blk%05u.dat...\n", (unsigned int)nFile); LoadExternalBlockFile(file, &pos); nFile++; } pblocktree->WriteReindexing(false); fReindex = false; printf("Reindexing finished\n"); // To avoid ending up in a situation without genesis block, re-try initializing (no-op if reindexing worked): InitBlockIndex(); } // hardcoded $DATADIR/bootstrap.dat filesystem::path pathBootstrap = GetDataDir() / "bootstrap.dat"; if (filesystem::exists(pathBootstrap)) { FILE *file = fopen(pathBootstrap.string().c_str(), "rb"); if (file) { CImportingNow imp; filesystem::path pathBootstrapOld = GetDataDir() / "bootstrap.dat.old"; printf("Importing bootstrap.dat...\n"); LoadExternalBlockFile(file); RenameOver(pathBootstrap, pathBootstrapOld); } } // -loadblock= BOOST_FOREACH(boost::filesystem::path &path, vImportFiles) { FILE *file = fopen(path.string().c_str(), "rb"); if (file) { CImportingNow imp; printf("Importing %s...\n", path.string().c_str()); LoadExternalBlockFile(file); } } } /** Initialize bitcoin. * @pre Parameters should be parsed and config file should be read. */ bool AppInit2(boost::thread_group& threadGroup) { // ********************************************************* Step 1: setup #ifdef _MSC_VER // Turn off Microsoft heap dump noise _CrtSetReportMode(_CRT_WARN, _CRTDBG_MODE_FILE); _CrtSetReportFile(_CRT_WARN, CreateFileA("NUL", GENERIC_WRITE, 0, NULL, OPEN_EXISTING, 0, 0)); #endif #if _MSC_VER >= 1400 // Disable confusing "helpful" text message on abort, Ctrl-C _set_abort_behavior(0, _WRITE_ABORT_MSG | _CALL_REPORTFAULT); #endif #ifdef WIN32 // Enable Data Execution Prevention (DEP) // Minimum supported OS versions: WinXP SP3, WinVista >= SP1, Win Server 2008 // A failure is non-critical and needs no further attention! #ifndef PROCESS_DEP_ENABLE // We define this here, because GCCs winbase.h limits this to _WIN32_WINNT >= 0x0601 (Windows 7), // which is not correct. Can be removed, when GCCs winbase.h is fixed! #define PROCESS_DEP_ENABLE 0x00000001 #endif typedef BOOL (WINAPI *PSETPROCDEPPOL)(DWORD); PSETPROCDEPPOL setProcDEPPol = (PSETPROCDEPPOL)GetProcAddress(GetModuleHandleA("Kernel32.dll"), "SetProcessDEPPolicy"); if (setProcDEPPol != NULL) setProcDEPPol(PROCESS_DEP_ENABLE); #endif #ifndef WIN32 umask(077); // Clean shutdown on SIGTERM struct sigaction sa; sa.sa_handler = HandleSIGTERM; sigemptyset(&sa.sa_mask); sa.sa_flags = 0; sigaction(SIGTERM, &sa, NULL); sigaction(SIGINT, &sa, NULL); // Reopen debug.log on SIGHUP struct sigaction sa_hup; sa_hup.sa_handler = HandleSIGHUP; sigemptyset(&sa_hup.sa_mask); sa_hup.sa_flags = 0; sigaction(SIGHUP, &sa_hup, NULL); #endif // ********************************************************* Step 2: parameter interactions fTestNet = GetBoolArg("-testnet"); if (mapArgs.count("-bind")) { // when specifying an explicit binding address, you want to listen on it // even when -connect or -proxy is specified SoftSetBoolArg("-listen", true); } if (mapArgs.count("-connect") && mapMultiArgs["-connect"].size() > 0) { // when only connecting to trusted nodes, do not seed via DNS, or listen by default SoftSetBoolArg("-dnsseed", false); SoftSetBoolArg("-listen", false); } if (mapArgs.count("-proxy")) { // to protect privacy, do not listen by default if a proxy server is specified SoftSetBoolArg("-listen", false); } if (!GetBoolArg("-listen", true)) { // do not map ports or try to retrieve public IP when not listening (pointless) SoftSetBoolArg("-upnp", false); SoftSetBoolArg("-discover", false); } if (mapArgs.count("-externalip")) { // if an explicit public IP is specified, do not try to find others SoftSetBoolArg("-discover", false); } if (GetBoolArg("-salvagewallet")) { // Rewrite just private keys: rescan to find transactions SoftSetBoolArg("-rescan", true); } // ********************************************************* Step 3: parameter-to-internal-flags fDebug = GetBoolArg("-debug"); fBenchmark = GetBoolArg("-benchmark"); // -par=0 means autodetect, but nScriptCheckThreads==0 means no concurrency nScriptCheckThreads = GetArg("-par", 0); if (nScriptCheckThreads == 0) nScriptCheckThreads = boost::thread::hardware_concurrency(); if (nScriptCheckThreads <= 1) nScriptCheckThreads = 0; else if (nScriptCheckThreads > MAX_SCRIPTCHECK_THREADS) nScriptCheckThreads = MAX_SCRIPTCHECK_THREADS; // -debug implies fDebug* if (fDebug) fDebugNet = true; else fDebugNet = GetBoolArg("-debugnet"); if (fDaemon) fServer = true; else fServer = GetBoolArg("-server"); /* force fServer when running without GUI */ #if !defined(QT_GUI) fServer = true; #endif fPrintToConsole = GetBoolArg("-printtoconsole"); fPrintToDebugger = GetBoolArg("-printtodebugger"); fLogTimestamps = GetBoolArg("-logtimestamps"); if (mapArgs.count("-timeout")) { int nNewTimeout = GetArg("-timeout", 5000); if (nNewTimeout > 0 && nNewTimeout < 600000) nConnectTimeout = nNewTimeout; } // Continue to put "/P2SH/" in the coinbase to monitor // BIP16 support. // This can be removed eventually... const char* pszP2SH = "/P2SH/"; COINBASE_FLAGS << std::vector(pszP2SH, pszP2SH+strlen(pszP2SH)); if (mapArgs.count("-paytxfee")) { if (!ParseMoney(mapArgs["-paytxfee"], nTransactionFee)) return InitError(strprintf(_("Invalid amount for -paytxfee=: '%s'"), mapArgs["-paytxfee"].c_str())); if (nTransactionFee > 0.25 * COIN) InitWarning(_("Warning: -paytxfee is set very high! This is the transaction fee you will pay if you send a transaction.")); } // ********************************************************* Step 4: application initialization: dir lock, daemonize, pidfile, debug log std::string strDataDir = GetDataDir().string(); // Make sure only a single Bitcoin process is using the data directory. boost::filesystem::path pathLockFile = GetDataDir() / ".lock"; FILE* file = fopen(pathLockFile.string().c_str(), "a"); // empty lock file; created if it doesn't exist. if (file) fclose(file); static boost::interprocess::file_lock lock(pathLockFile.string().c_str()); if (!lock.try_lock()) return InitError(strprintf(_("Cannot obtain a lock on data directory %s. Bitcoin is probably already running."), strDataDir.c_str())); if (GetBoolArg("-shrinkdebugfile", !fDebug)) ShrinkDebugFile(); printf("\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n"); printf("Bitcoin version %s (%s)\n", FormatFullVersion().c_str(), CLIENT_DATE.c_str()); printf("Using OpenSSL version %s\n", SSLeay_version(SSLEAY_VERSION)); if (!fLogTimestamps) printf("Startup time: %s\n", DateTimeStrFormat("%Y-%m-%d %H:%M:%S", GetTime()).c_str()); printf("Default data directory %s\n", GetDefaultDataDir().string().c_str()); printf("Used data directory %s\n", strDataDir.c_str()); std::ostringstream strErrors; if (fDaemon) fprintf(stdout, "Bitcoin server starting\n"); if (nScriptCheckThreads) { printf("Using %u threads for script verification\n", nScriptCheckThreads); for (int i=0; i nets; BOOST_FOREACH(std::string snet, mapMultiArgs["-onlynet"]) { enum Network net = ParseNetwork(snet); if (net == NET_UNROUTABLE) return InitError(strprintf(_("Unknown network specified in -onlynet: '%s'"), snet.c_str())); nets.insert(net); } for (int n = 0; n < NET_MAX; n++) { enum Network net = (enum Network)n; if (!nets.count(net)) SetLimited(net); } } #if defined(USE_IPV6) #if ! USE_IPV6 else SetLimited(NET_IPV6); #endif #endif CService addrProxy; bool fProxy = false; if (mapArgs.count("-proxy")) { addrProxy = CService(mapArgs["-proxy"], 9050); if (!addrProxy.IsValid()) return InitError(strprintf(_("Invalid -proxy address: '%s'"), mapArgs["-proxy"].c_str())); if (!IsLimited(NET_IPV4)) SetProxy(NET_IPV4, addrProxy, nSocksVersion); if (nSocksVersion > 4) { #ifdef USE_IPV6 if (!IsLimited(NET_IPV6)) SetProxy(NET_IPV6, addrProxy, nSocksVersion); #endif SetNameProxy(addrProxy, nSocksVersion); } fProxy = true; } // -tor can override normal proxy, -notor disables tor entirely if (!(mapArgs.count("-tor") && mapArgs["-tor"] == "0") && (fProxy || mapArgs.count("-tor"))) { CService addrOnion; if (!mapArgs.count("-tor")) addrOnion = addrProxy; else addrOnion = CService(mapArgs["-tor"], 9050); if (!addrOnion.IsValid()) return InitError(strprintf(_("Invalid -tor address: '%s'"), mapArgs["-tor"].c_str())); SetProxy(NET_TOR, addrOnion, 5); SetReachable(NET_TOR); } // see Step 2: parameter interactions for more information about these fNoListen = !GetBoolArg("-listen", true); fDiscover = GetBoolArg("-discover", true); fNameLookup = GetBoolArg("-dns", true); bool fBound = false; if (!fNoListen) { if (mapArgs.count("-bind")) { BOOST_FOREACH(std::string strBind, mapMultiArgs["-bind"]) { CService addrBind; if (!Lookup(strBind.c_str(), addrBind, GetListenPort(), false)) return InitError(strprintf(_("Cannot resolve -bind address: '%s'"), strBind.c_str())); fBound |= Bind(addrBind, (BF_EXPLICIT | BF_REPORT_ERROR)); } } else { struct in_addr inaddr_any; inaddr_any.s_addr = INADDR_ANY; #ifdef USE_IPV6 fBound |= Bind(CService(in6addr_any, GetListenPort()), BF_NONE); #endif fBound |= Bind(CService(inaddr_any, GetListenPort()), !fBound ? BF_REPORT_ERROR : BF_NONE); } if (!fBound) return InitError(_("Failed to listen on any port. Use -listen=0 if you want this.")); } if (mapArgs.count("-externalip")) { BOOST_FOREACH(string strAddr, mapMultiArgs["-externalip"]) { CService addrLocal(strAddr, GetListenPort(), fNameLookup); if (!addrLocal.IsValid()) return InitError(strprintf(_("Cannot resolve -externalip address: '%s'"), strAddr.c_str())); AddLocal(CService(strAddr, GetListenPort(), fNameLookup), LOCAL_MANUAL); } } BOOST_FOREACH(string strDest, mapMultiArgs["-seednode"]) AddOneShot(strDest); // ********************************************************* Step 7: load block chain fReindex = GetBoolArg("-reindex"); if (!bitdb.Open(GetDataDir())) { string msg = strprintf(_("Error initializing database environment %s!" " To recover, BACKUP THAT DIRECTORY, then remove" " everything from it except for wallet.dat."), strDataDir.c_str()); return InitError(msg); } // Upgrading to 0.8; hard-link the old blknnnn.dat files into /blocks/ filesystem::path blocksDir = GetDataDir() / "blocks"; if (!filesystem::exists(blocksDir)) { filesystem::create_directories(blocksDir); bool linked = false; for (unsigned int i = 1; i < 10000; i++) { filesystem::path source = GetDataDir() / strprintf("blk%04u.dat", i); if (!filesystem::exists(source)) break; filesystem::path dest = blocksDir / strprintf("blk%05u.dat", i-1); try { filesystem::create_hard_link(source, dest); printf("Hardlinked %s -> %s\n", source.string().c_str(), dest.string().c_str()); linked = true; } catch (filesystem::filesystem_error & e) { // Note: hardlink creation failing is not a disaster, it just means // blocks will get re-downloaded from peers. printf("Error hardlinking blk%04u.dat : %s\n", i, e.what()); break; } } if (linked) { fReindex = true; } } // cache size calculations size_t nTotalCache = GetArg("-dbcache", 25) << 20; if (nTotalCache < (1 << 22)) nTotalCache = (1 << 22); // total cache cannot be less than 4 MiB size_t nBlockTreeDBCache = nTotalCache / 8; if (nBlockTreeDBCache > (1 << 21) && !GetBoolArg("-txindex", false)) nBlockTreeDBCache = (1 << 21); // block tree db cache shouldn't be larger than 2 MiB nTotalCache -= nBlockTreeDBCache; size_t nCoinDBCache = nTotalCache / 2; // use half of the remaining cache for coindb cache nTotalCache -= nCoinDBCache; nCoinCacheSize = nTotalCache / 300; // coins in memory require around 300 bytes bool fLoaded = false; while (!fLoaded) { bool fReset = fReindex; std::string strLoadError; uiInterface.InitMessage(_("Loading block index...")); nStart = GetTimeMillis(); do { try { UnloadBlockIndex(); delete pcoinsTip; delete pcoinsdbview; delete pblocktree; pblocktree = new CBlockTreeDB(nBlockTreeDBCache, false, fReindex); pcoinsdbview = new CCoinsViewDB(nCoinDBCache, false, fReindex); pcoinsTip = new CCoinsViewCache(*pcoinsdbview); if (fReindex) pblocktree->WriteReindexing(true); if (!LoadBlockIndex()) { strLoadError = _("Error loading block database"); break; } // Initialize the block index (no-op if non-empty database was already loaded) if (!InitBlockIndex()) { strLoadError = _("Error initializing block database"); break; } uiInterface.InitMessage(_("Verifying blocks...")); if (!VerifyDB()) { strLoadError = _("Corrupted block database detected"); break; } } catch(std::exception &e) { strLoadError = _("Error opening block database"); break; } fLoaded = true; } while(false); if (!fLoaded) { // first suggest a reindex if (!fReset) { bool fRet = uiInterface.ThreadSafeMessageBox( strLoadError + ".\n" + _("Do you want to rebuild the block database now?"), "", CClientUIInterface::MSG_ERROR | CClientUIInterface::BTN_ABORT); if (fRet) { fReindex = true; fRequestShutdown = false; } else { return false; } } else { return InitError(strLoadError); } } } if (mapArgs.count("-txindex") && fTxIndex != GetBoolArg("-txindex", false)) return InitError(_("You need to rebuild the databases using -reindex to change -txindex")); // as LoadBlockIndex can take several minutes, it's possible the user // requested to kill bitcoin-qt during the last operation. If so, exit. // As the program has not fully started yet, Shutdown() is possibly overkill. if (fRequestShutdown) { printf("Shutdown requested. Exiting.\n"); return false; } printf(" block index %15"PRI64d"ms\n", GetTimeMillis() - nStart); if (GetBoolArg("-printblockindex") || GetBoolArg("-printblocktree")) { PrintBlockTree(); return false; } if (mapArgs.count("-printblock")) { string strMatch = mapArgs["-printblock"]; int nFound = 0; for (map::iterator mi = mapBlockIndex.begin(); mi != mapBlockIndex.end(); ++mi) { uint256 hash = (*mi).first; if (strncmp(hash.ToString().c_str(), strMatch.c_str(), strMatch.size()) == 0) { CBlockIndex* pindex = (*mi).second; CBlock block; block.ReadFromDisk(pindex); block.BuildMerkleTree(); block.print(); printf("\n"); nFound++; } } if (nFound == 0) printf("No blocks matching %s were found\n", strMatch.c_str()); return false; } // ********************************************************* Step 8: load wallet uiInterface.InitMessage(_("Loading wallet...")); nStart = GetTimeMillis(); bool fFirstRun = true; pwalletMain = new CWallet("wallet.dat"); DBErrors nLoadWalletRet = pwalletMain->LoadWallet(fFirstRun); if (nLoadWalletRet != DB_LOAD_OK) { if (nLoadWalletRet == DB_CORRUPT) strErrors << _("Error loading wallet.dat: Wallet corrupted") << "\n"; else if (nLoadWalletRet == DB_NONCRITICAL_ERROR) { string msg(_("Warning: error reading wallet.dat! All keys read correctly, but transaction data" " or address book entries might be missing or incorrect.")); InitWarning(msg); } else if (nLoadWalletRet == DB_TOO_NEW) strErrors << _("Error loading wallet.dat: Wallet requires newer version of Bitcoin") << "\n"; else if (nLoadWalletRet == DB_NEED_REWRITE) { strErrors << _("Wallet needed to be rewritten: restart Bitcoin to complete") << "\n"; printf("%s", strErrors.str().c_str()); return InitError(strErrors.str()); } else strErrors << _("Error loading wallet.dat") << "\n"; } if (GetBoolArg("-upgradewallet", fFirstRun)) { int nMaxVersion = GetArg("-upgradewallet", 0); if (nMaxVersion == 0) // the -upgradewallet without argument case { printf("Performing wallet upgrade to %i\n", FEATURE_LATEST); nMaxVersion = CLIENT_VERSION; pwalletMain->SetMinVersion(FEATURE_LATEST); // permanently upgrade the wallet immediately } else printf("Allowing wallet upgrade up to %i\n", nMaxVersion); if (nMaxVersion < pwalletMain->GetVersion()) strErrors << _("Cannot downgrade wallet") << "\n"; pwalletMain->SetMaxVersion(nMaxVersion); } if (fFirstRun) { // Create new keyUser and set as default key RandAddSeedPerfmon(); CPubKey newDefaultKey; if (!pwalletMain->GetKeyFromPool(newDefaultKey, false)) strErrors << _("Cannot initialize keypool") << "\n"; pwalletMain->SetDefaultKey(newDefaultKey); if (!pwalletMain->SetAddressBookName(pwalletMain->vchDefaultKey.GetID(), "")) strErrors << _("Cannot write default address") << "\n"; } printf("%s", strErrors.str().c_str()); printf(" wallet %15"PRI64d"ms\n", GetTimeMillis() - nStart); RegisterWallet(pwalletMain); CBlockIndex *pindexRescan = pindexBest; if (GetBoolArg("-rescan")) pindexRescan = pindexGenesisBlock; else { CWalletDB walletdb("wallet.dat"); CBlockLocator locator; if (walletdb.ReadBestBlock(locator)) pindexRescan = locator.GetBlockIndex(); } if (pindexBest && pindexBest != pindexRescan) { uiInterface.InitMessage(_("Rescanning...")); printf("Rescanning last %i blocks (from block %i)...\n", pindexBest->nHeight - pindexRescan->nHeight, pindexRescan->nHeight); nStart = GetTimeMillis(); pwalletMain->ScanForWalletTransactions(pindexRescan, true); printf(" rescan %15"PRI64d"ms\n", GetTimeMillis() - nStart); } // ********************************************************* Step 9: import blocks // scan for better chains in the block chain database, that are not yet connected in the active best chain CValidationState state; if (!ConnectBestBlock(state)) strErrors << "Failed to connect best block"; std::vector vImportFiles; if (mapArgs.count("-loadblock")) { BOOST_FOREACH(string strFile, mapMultiArgs["-loadblock"]) vImportFiles.push_back(strFile); } threadGroup.create_thread(boost::bind(&ThreadImport, vImportFiles)); // ********************************************************* Step 10: load peers uiInterface.InitMessage(_("Loading addresses...")); nStart = GetTimeMillis(); { CAddrDB adb; if (!adb.Read(addrman)) printf("Invalid or missing peers.dat; recreating\n"); } printf("Loaded %i addresses from peers.dat %"PRI64d"ms\n", addrman.size(), GetTimeMillis() - nStart); // ********************************************************* Step 11: start node if (!CheckDiskSpace()) return false; RandAddSeedPerfmon(); //// debug print printf("mapBlockIndex.size() = %"PRIszu"\n", mapBlockIndex.size()); printf("nBestHeight = %d\n", nBestHeight); printf("setKeyPool.size() = %"PRIszu"\n", pwalletMain->setKeyPool.size()); printf("mapWallet.size() = %"PRIszu"\n", pwalletMain->mapWallet.size()); printf("mapAddressBook.size() = %"PRIszu"\n", pwalletMain->mapAddressBook.size()); StartNode(threadGroup); if (fServer) StartRPCThreads(); // Generate coins in the background GenerateBitcoins(GetBoolArg("-gen", false), pwalletMain); // ********************************************************* Step 12: finished uiInterface.InitMessage(_("Done loading")); if (!strErrors.str().empty()) return InitError(strErrors.str()); // Add wallet transactions that aren't already in a block to mapTransactions pwalletMain->ReacceptWalletTransactions(); // Run a thread to flush wallet periodically threadGroup.create_thread(boost::bind(&ThreadFlushWalletDB, boost::ref(pwalletMain->strWalletFile))); return !fRequestShutdown; }