init.cpp

   1 // Copyright (c) 2009-2010 Satoshi Nakamoto
   2 // Distributed under the MIT/X11 software license, see the accompanying
   3 // file license.txt or http://www.opensource.org/licenses/mit-license.php.
   4
   5 #include "headers.h"
   6
   7
   8
   9
  10
  11
  12
  13 //////////////////////////////////////////////////////////////////////////////
  14 //
  15 // Shutdown
  16 //
  17
  18 void ExitTimeout(void* parg)
  19 {
  20 #ifdef __WXMSW__
  21     Sleep(5000);
  22     ExitProcess(0);
  23 #endif
  24 }
  25
  26 void Shutdown(void* parg)
  27 {
  28     static CCriticalSection cs_Shutdown;
  29     static bool fTaken;
  30     bool fFirstThread;
  31     CRITICAL_BLOCK(cs_Shutdown)
  32     {
  33         fFirstThread = !fTaken;
  34         fTaken = true;
  35     }
  36     static bool fExit;
  37     if (fFirstThread)
  38     {
  39         fShutdown = true;
  40         nTransactionsUpdated++;
  41         DBFlush(false);
  42         StopNode();
  43         DBFlush(true);
  44         CreateThread(ExitTimeout, NULL);
  45         Sleep(50);
  46         printf("Bitcoin exiting\n\n");
  47         fExit = true;
  48         exit(0);
  49     }
  50     else
  51     {
  52         while (!fExit)
  53             Sleep(500);
  54         Sleep(100);
  55         ExitThread(0);
  56     }
  57 }
  58
  59 void HandleSIGTERM(int)
  60 {
  61     fRequestShutdown = true;
  62 }
  63
  64
  65
  66
  67
  68
  69 //////////////////////////////////////////////////////////////////////////////
  70 //
  71 // Start
  72 //
  73
  74 #ifndef GUI
  75 int main(int argc, char* argv[])
  76 {
  77     for (int i = 1; i < argc; i++)
  78         if (!IsSwitchChar(argv[i][0]))
  79             fCommandLine = true;
  80     fDaemon = !fCommandLine;
  81
  82 #ifdef __WXGTK__
  83     if (!fCommandLine)
  84     {
  85         // Daemonize
  86         pid_t pid = fork();
  87         if (pid < 0)
  88         {
  89             fprintf(stderr, "Error: fork() returned %d errno %d\n", pid, errno);
  90             return 1;
  91         }
  92         if (pid > 0)
  93             pthread_exit((void*)0);
  94     }
  95 #endif
  96
  97     if (!AppInit(argc, argv))
  98         return 1;
  99
 100     while (!fShutdown)
 101         Sleep(1000000);
 102     return 0;
 103 }
 104 #endif
 105
 106 bool AppInit(int argc, char* argv[])
 107 {
 108     bool fRet = false;
 109     try
 110     {
 111         fRet = AppInit2(argc, argv);
 112     }
 113     catch (std::exception& e) {
 114         PrintException(&e, "AppInit()");
 115     } catch (...) {
 116         PrintException(NULL, "AppInit()");
 117     }
 118     if (!fRet)
 119         Shutdown(NULL);
 120     return fRet;
 121 }
 122
 123 bool AppInit2(int argc, char* argv[])
 124 {
 125 #ifdef _MSC_VER
 126     // Turn off microsoft heap dump noise
 127     _CrtSetReportMode(_CRT_WARN, _CRTDBG_MODE_FILE);
 128     _CrtSetReportFile(_CRT_WARN, CreateFileA("NUL", GENERIC_WRITE, 0, NULL, OPEN_EXISTING, 0, 0));
 129 #endif
 130 #if _MSC_VER >= 1400
 131     // Disable confusing "helpful" text message on abort, ctrl-c
 132     _set_abort_behavior(0, _WRITE_ABORT_MSG | _CALL_REPORTFAULT);
 133 #endif
 134 #ifndef __WXMSW__
 135     umask(077);
 136 #endif
 137 #ifndef __WXMSW__
 138     // Clean shutdown on SIGTERM
 139     struct sigaction sa;
 140     sa.sa_handler = HandleSIGTERM;
 141     sigemptyset(&sa.sa_mask);
 142     sa.sa_flags = 0;
 143     sigaction(SIGTERM, &sa, NULL);
 144 #endif
 145
 146     //
 147     // Parameters
 148     //
 149     ParseParameters(argc, argv);
 150
 151     if (mapArgs.count("-datadir"))
 152     {
 153         filesystem::path pathDataDir = filesystem::system_complete(mapArgs["-datadir"]);
 154         strlcpy(pszSetDataDir, pathDataDir.string().c_str(), sizeof(pszSetDataDir));
 155     }
 156
 157     ReadConfigFile(mapArgs, mapMultiArgs); // Must be done after processing datadir
 158
 159     if (mapArgs.count("-?") || mapArgs.count("--help"))
 160     {
 161         string beta = VERSION_IS_BETA ? _(" beta") : "";
 162         string strUsage = string() +
 163           _("Bitcoin version") + " " + FormatVersion(VERSION) + pszSubVer + beta + "\n\n" +
 164           _("Usage:") + "\t\t\t\t\t\t\t\t\t\t\n" +
 165             "  bitcoin [options]                   \t  " + "\n" +
 166             "  bitcoin [options] <command> [params]\t  " + _("Send command to -server or bitcoind\n") +
 167             "  bitcoin [options] help              \t\t  " + _("List commands\n") +
 168             "  bitcoin [options] help <command>    \t\t  " + _("Get help for a command\n") +
 169           _("Options:\n") +
 170             "  -conf=<file>     \t\t  " + _("Specify configuration file (default: bitcoin.conf)\n") +
 171             "  -gen             \t\t  " + _("Generate coins\n") +
 172             "  -gen=0           \t\t  " + _("Don't generate coins\n") +
 173             "  -min             \t\t  " + _("Start minimized\n") +
 174             "  -datadir=<dir>   \t\t  " + _("Specify data directory\n") +
 175             "  -proxy=<ip:port> \t  "   + _("Connect through socks4 proxy\n") +
 176             "  -addnode=<ip>    \t  "   + _("Add a node to connect to\n") +
 177             "  -connect=<ip>    \t\t  " + _("Connect only to the specified node\n") +
 178             "  -nolisten        \t  "   + _("Don't accept connections from outside") +
 179             "  -paytxfee=<amt>  \t  "   + _("Fee per KB to add to transactions you send\n") +
 180             "  -server          \t\t  " + _("Accept command line and JSON-RPC commands\n") +
 181             "  -daemon          \t\t  " + _("Run in the background as a daemon and accept commands\n") +
 182             "  -testnet         \t\t  " + _("Use the test network\n") +
 183             "  -rpcuser=<user>  \t  "   + _("Username for JSON-RPC connections\n") +
 184             "  -rpcpassword=<pw>\t  "   + _("Password for JSON-RPC connections\n") +
 185             "  -rpcport=<port>  \t\t  " + _("Listen for JSON-RPC connections on <port> (default: 8332)\n") +
 186             "  -rpcallowip=<ip> \t\t  " + _("Allow JSON-RPC connections from specified IP address\n") +
 187             "  -rpcconnect=<ip> \t  "   + _("Send commands to node running on <ip> (default: 127.0.0.1)\n") +
 188             "  -keypool=<n>     \t  "   + _("Set key pool size to <n> (default: 100)\n") +
 189             "  -rescan          \t  "   + _("Rescan the block chain for missing wallet transactions\n");
 190
 191 #ifdef USE_SSL
 192         strUsage += string() +
 193             _("\nSSL options: (see the Bitcoin Wiki for SSL setup instructions)\n") +
 194             "  -rpcssl                                \t  " + _("Use OpenSSL (https) for JSON-RPC connections\n") +
 195             "  -rpcsslcertificatechainfile=<file.cert>\t  " + _("Server certificate file (default: server.cert)\n") +
 196             "  -rpcsslprivatekeyfile=<file.pem>       \t  " + _("Server private key (default: server.pem)\n") +
 197             "  -rpcsslciphers=<ciphers>               \t  " + _("Acceptable ciphers (default: TLSv1+HIGH:!SSLv2:!aNULL:!eNULL:!AH:!3DES:@STRENGTH)\n");
 198 #endif
 199
 200         strUsage += string() +
 201             "  -?               \t\t  " + _("This help message\n");
 202
 203 #if defined(__WXMSW__) && defined(GUI)
 204         // Tabs make the columns line up in the message box
 205         wxMessageBox(strUsage, "Bitcoin", wxOK);
 206 #else
 207         // Remove tabs
 208         strUsage.erase(std::remove(strUsage.begin(), strUsage.end(), '\t'), strUsage.end());
 209         fprintf(stderr, "%s", strUsage.c_str());
 210 #endif
 211         return false;
 212     }
 213
 214     fDebug = GetBoolArg("-debug");
 215
 216     fPrintToConsole = GetBoolArg("-printtoconsole");
 217     fPrintToDebugger = GetBoolArg("-printtodebugger");
 218
 219     fTestNet = GetBoolArg("-testnet");
 220
 221     fNoListen = GetBoolArg("-nolisten");
 222
 223     if (fCommandLine)
 224     {
 225         int ret = CommandLineRPC(argc, argv);
 226         exit(ret);
 227     }
 228
 229     if (!fDebug && !pszSetDataDir[0])
 230         ShrinkDebugFile();
 231     printf("\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n");
 232     printf("Bitcoin version %s%s%s\n", FormatVersion(VERSION).c_str(), pszSubVer, VERSION_IS_BETA ? _(" beta") : "");
 233 #ifdef GUI
 234     printf("OS version %s\n", ((string)wxGetOsDescription()).c_str());
 235     printf("System default language is %d %s\n", g_locale.GetSystemLanguage(), ((string)g_locale.GetSysName()).c_str());
 236     printf("Language file %s (%s)\n", (string("locale/") + (string)g_locale.GetCanonicalName() + "/LC_MESSAGES/bitcoin.mo").c_str(), ((string)g_locale.GetLocale()).c_str());
 237 #endif
 238     printf("Default data directory %s\n", GetDefaultDataDir().c_str());
 239
 240     if (GetBoolArg("-loadblockindextest"))
 241     {
 242         CTxDB txdb("r");
 243         txdb.LoadBlockIndex();
 244         PrintBlockTree();
 245         return false;
 246     }
 247
 248     //
 249     // Limit to single instance per user
 250     // Required to protect the database files if we're going to keep deleting log.*
 251     //
 252 #if defined(__WXMSW__) && defined(GUI)
 253     // wxSingleInstanceChecker doesn't work on Linux
 254     wxString strMutexName = wxString("bitcoin_running.") + getenv("HOMEPATH");
 255     for (int i = 0; i < strMutexName.size(); i++)
 256         if (!isalnum(strMutexName[i]))
 257             strMutexName[i] = '.';
 258     wxSingleInstanceChecker* psingleinstancechecker = new wxSingleInstanceChecker(strMutexName);
 259     if (psingleinstancechecker->IsAnotherRunning())
 260     {
 261         printf("Existing instance found\n");
 262         unsigned int nStart = GetTime();
 263         loop
 264         {
 265             // Show the previous instance and exit
 266             HWND hwndPrev = FindWindowA("wxWindowClassNR", "Bitcoin");
 267             if (hwndPrev)
 268             {
 269                 if (IsIconic(hwndPrev))
 270                     ShowWindow(hwndPrev, SW_RESTORE);
 271                 SetForegroundWindow(hwndPrev);
 272                 return false;
 273             }
 274
 275             if (GetTime() > nStart + 60)
 276                 return false;
 277
 278             // Resume this instance if the other exits
 279             delete psingleinstancechecker;
 280             Sleep(1000);
 281             psingleinstancechecker = new wxSingleInstanceChecker(strMutexName);
 282             if (!psingleinstancechecker->IsAnotherRunning())
 283                 break;
 284         }
 285     }
 286 #endif
 287
 288     // Make sure only a single bitcoin process is using the data directory.
 289     string strLockFile = GetDataDir() + "/.lock";
 290     FILE* file = fopen(strLockFile.c_str(), "a"); // empty lock file; created if it doesn't exist.
 291     fclose(file);
 292     static boost::interprocess::file_lock lock(strLockFile.c_str());
 293     if (!lock.try_lock())
 294     {
 295         wxMessageBox(strprintf(_("Cannot obtain a lock on data directory %s.  Bitcoin is probably already running."), GetDataDir().c_str()), "Bitcoin");
 296         return false;
 297     }
 298
 299     // Bind to the port early so we can tell if another instance is already running.
 300     string strErrors;
 301     if (!fNoListen)
 302     {
 303         if (!BindListenPort(strErrors))
 304         {
 305             wxMessageBox(strErrors, "Bitcoin");
 306             return false;
 307         }
 308     }
 309
 310     //
 311     // Load data files
 312     //
 313     if (fDaemon)
 314         fprintf(stdout, "bitcoin server starting\n");
 315     strErrors = "";
 316     int64 nStart;
 317
 318     printf("Loading addresses...\n");
 319     nStart = GetTimeMillis();
 320     if (!LoadAddresses())
 321         strErrors += _("Error loading addr.dat      \n");
 322     printf(" addresses   %15"PRI64d"ms\n", GetTimeMillis() - nStart);
 323
 324     printf("Loading block index...\n");
 325     nStart = GetTimeMillis();
 326     if (!LoadBlockIndex())
 327         strErrors += _("Error loading blkindex.dat      \n");
 328     printf(" block index %15"PRI64d"ms\n", GetTimeMillis() - nStart);
 329
 330     printf("Loading wallet...\n");
 331     nStart = GetTimeMillis();
 332     bool fFirstRun;
 333     if (!LoadWallet(fFirstRun))
 334         strErrors += _("Error loading wallet.dat      \n");
 335     printf(" wallet      %15"PRI64d"ms\n", GetTimeMillis() - nStart);
 336
 337     if (GetBoolArg("-rescan"))
 338     {
 339         nStart = GetTimeMillis();
 340         ScanForWalletTransactions(pindexGenesisBlock);
 341         printf(" rescan      %15"PRI64d"ms\n", GetTimeMillis() - nStart);
 342     }
 343
 344     printf("Done loading\n");
 345
 346         //// debug print
 347         printf("mapBlockIndex.size() = %d\n",   mapBlockIndex.size());
 348         printf("nBestHeight = %d\n",            nBestHeight);
 349         printf("mapKeys.size() = %d\n",         mapKeys.size());
 350         printf("mapPubKeys.size() = %d\n",      mapPubKeys.size());
 351         printf("mapWallet.size() = %d\n",       mapWallet.size());
 352         printf("mapAddressBook.size() = %d\n",  mapAddressBook.size());
 353
 354     if (!strErrors.empty())
 355     {
 356         wxMessageBox(strErrors, "Bitcoin", wxOK | wxICON_ERROR);
 357         return false;
 358     }
 359
 360     // Add wallet transactions that aren't already in a block to mapTransactions
 361     ReacceptWalletTransactions();
 362
 363     //
 364     // Parameters
 365     //
 366     if (GetBoolArg("-printblockindex") || GetBoolArg("-printblocktree"))
 367     {
 368         PrintBlockTree();
 369         return false;
 370     }
 371
 372     if (mapArgs.count("-printblock"))
 373     {
 374         string strMatch = mapArgs["-printblock"];
 375         int nFound = 0;
 376         for (map<uint256, CBlockIndex*>::iterator mi = mapBlockIndex.begin(); mi != mapBlockIndex.end(); ++mi)
 377         {
 378             uint256 hash = (*mi).first;
 379             if (strncmp(hash.ToString().c_str(), strMatch.c_str(), strMatch.size()) == 0)
 380             {
 381                 CBlockIndex* pindex = (*mi).second;
 382                 CBlock block;
 383                 block.ReadFromDisk(pindex);
 384                 block.BuildMerkleTree();
 385                 block.print();
 386                 printf("\n");
 387                 nFound++;
 388             }
 389         }
 390         if (nFound == 0)
 391             printf("No blocks matching %s were found\n", strMatch.c_str());
 392         return false;
 393     }
 394
 395     fGenerateBitcoins = GetBoolArg("-gen");
 396
 397     if (mapArgs.count("-proxy"))
 398     {
 399         fUseProxy = true;
 400         addrProxy = CAddress(mapArgs["-proxy"]);
 401         if (!addrProxy.IsValid())
 402         {
 403             wxMessageBox(_("Invalid -proxy address"), "Bitcoin");
 404             return false;
 405         }
 406     }
 407
 408     if (mapArgs.count("-addnode"))
 409     {
 410         foreach(string strAddr, mapMultiArgs["-addnode"])
 411         {
 412             CAddress addr(strAddr, NODE_NETWORK);
 413             addr.nTime = 0; // so it won't relay unless successfully connected
 414             if (addr.IsValid())
 415                 AddAddress(addr);
 416         }
 417     }
 418
 419     if (mapArgs.count("-paytxfee"))
 420     {
 421         if (!ParseMoney(mapArgs["-paytxfee"], nTransactionFee))
 422         {
 423             wxMessageBox(_("Invalid amount for -paytxfee=<amount>"), "Bitcoin");
 424             return false;
 425         }
 426         if (nTransactionFee > 0.25 * COIN)
 427             wxMessageBox(_("Warning: -paytxfee is set very high.  This is the transaction fee you will pay if you send a transaction."), "Bitcoin", wxOK | wxICON_EXCLAMATION);
 428     }
 429
 430     //
 431     // Create the main window and start the node
 432     //
 433 #ifdef GUI
 434     if (!fDaemon)
 435         CreateMainWindow();
 436 #endif
 437
 438     if (!CheckDiskSpace())
 439         return false;
 440
 441     RandAddSeedPerfmon();
 442
 443     if (!CreateThread(StartNode, NULL))
 444         wxMessageBox("Error: CreateThread(StartNode) failed", "Bitcoin");
 445
 446     if (GetBoolArg("-server") || fDaemon)
 447         CreateThread(ThreadRPCServer, NULL);
 448
 449 #if defined(__WXMSW__) && defined(GUI)
 450     if (fFirstRun)
 451         SetStartOnSystemStartup(true);
 452 #endif
 453
 454     return true;
 455 }