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	diff --git a/src/init.cpp b/src/init.cpp
	index 1f6826413..e75e981a5 100644
	--- a/src/init.cpp
	+++ b/src/init.cpp
	@@ -1,1015 +1,1017 @@
	// 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.

	#if defined(HAVE_CONFIG_H)
	#include "bitcoin-config.h"
	#endif

	#include "init.h"
	#include "main.h"
	#include "core.h"
	#include "chainparams.h"
	#include "txdb.h"
	#include "walletdb.h"
	#include "bitcoinrpc.h"
	#include "net.h"
	#include "util.h"
	#include "miner.h"
	#include "ui_interface.h"
	#include "checkpoints.h"

	#include <boost/filesystem.hpp>
	#include <boost/filesystem/fstream.hpp>
	#include <boost/filesystem/convenience.hpp>
	#include <boost/interprocess/sync/file_lock.hpp>
	#include <boost/algorithm/string/predicate.hpp>
	#include <openssl/crypto.h>

	#ifndef WIN32
	#include <signal.h>
	#endif

	using namespace std;
	using namespace boost;

	std::string strWalletFile;
	CWallet* pwalletMain;
	CClientUIInterface uiInterface;

	#ifdef WIN32
	// Win32 LevelDB doesn't use filedescriptors, and the ones used for
	// accessing block files, don't count towards to fd_set size limit
	// anyway.
	#define MIN_CORE_FILEDESCRIPTORS 0
	#else
	#define MIN_CORE_FILEDESCRIPTORS 150
	#endif

	// 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, and then does the normal Qt
	// shutdown thing.
	//

	volatile bool fRequestShutdown = false;

	void StartShutdown()
	{
	fRequestShutdown = true;
	}
	bool ShutdownRequested()
	{
	return fRequestShutdown;
	}

	static CCoinsViewDB *pcoinsdbview;

	void Shutdown()
	{
	+ LogPrintf("Shutdown : In progress...\n");
	static CCriticalSection cs_Shutdown;
	TRY_LOCK(cs_Shutdown, lockShutdown);
	if (!lockShutdown) return;

	RenameThread("bitcoin-shutoff");
	nTransactionsUpdated++;
	StopRPCThreads();
	ShutdownRPCMining();
	if (pwalletMain)
	bitdb.Flush(false);
	GenerateBitcoins(false, NULL);
	StopNode();
	{
	LOCK(cs_main);
	if (pwalletMain)
	pwalletMain->SetBestChain(CBlockLocator(pindexBest));
	if (pblocktree)
	pblocktree->Flush();
	if (pcoinsTip)
	pcoinsTip->Flush();
	delete pcoinsTip; pcoinsTip = NULL;
	delete pcoinsdbview; pcoinsdbview = NULL;
	delete pblocktree; pblocktree = NULL;
	}
	if (pwalletMain)
	bitdb.Flush(true);
	boost::filesystem::remove(GetPidFile());
	UnregisterAllWallets();
	if (pwalletMain)
	delete pwalletMain;
	+ LogPrintf("Shutdown : done\n");
	}

	//
	// Signal handlers are very limited in what they are allowed to do, so:
	//
	void HandleSIGTERM(int)
	{
	fRequestShutdown = true;
	}

	void HandleSIGHUP(int)
	{
	fReopenDebugLog = true;
	}

	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";
	strUsage += " -? " + _("This help message") + "\n";
	strUsage += " -conf=<file> " + _("Specify configuration file (default: bitcoin.conf)") + "\n";
	strUsage += " -pid=<file> " + _("Specify pid file (default: bitcoind.pid)") + "\n";
	strUsage += " -gen " + _("Generate coins (default: 0)") + "\n";
	strUsage += " -datadir=<dir> " + _("Specify data directory") + "\n";
	strUsage += " -wallet=<file> " + _("Specify wallet file (within data directory)") + "\n";
	strUsage += " -dbcache=<n> " + _("Set database cache size in megabytes (default: 25)") + "\n";
	strUsage += " -timeout=<n> " + _("Specify connection timeout in milliseconds (default: 5000)") + "\n";
	strUsage += " -proxy=<ip:port> " + _("Connect through socks proxy") + "\n";
	strUsage += " -socks=<n> " + _("Select the version of socks proxy to use (4-5, default: 5)") + "\n";
	strUsage += " -tor=<ip:port> " + _("Use proxy to reach tor hidden services (default: same as -proxy)") + "\n";
	strUsage += " -dns " + _("Allow DNS lookups for -addnode, -seednode and -connect") + "\n";
	strUsage += " -port=<port> " + _("Listen for connections on <port> (default: 8333 or testnet: 18333)") + "\n";
	strUsage += " -maxconnections=<n> " + _("Maintain at most <n> connections to peers (default: 125)") + "\n";
	strUsage += " -addnode=<ip> " + _("Add a node to connect to and attempt to keep the connection open") + "\n";
	strUsage += " -connect=<ip> " + _("Connect only to the specified node(s)") + "\n";
	strUsage += " -seednode=<ip> " + _("Connect to a node to retrieve peer addresses, and disconnect") + "\n";
	strUsage += " -externalip=<ip> " + _("Specify your own public address") + "\n";
	strUsage += " -onlynet=<net> " + _("Only connect to nodes in network <net> (IPv4, IPv6 or Tor)") + "\n";
	strUsage += " -discover " + _("Discover own IP address (default: 1 when listening and no -externalip)") + "\n";
	strUsage += " -checkpoints " + _("Only accept block chain matching built-in checkpoints (default: 1)") + "\n";
	strUsage += " -listen " + _("Accept connections from outside (default: 1 if no -proxy or -connect)") + "\n";
	strUsage += " -bind=<addr> " + _("Bind to given address and always listen on it. Use [host]:port notation for IPv6") + "\n";
	strUsage += " -dnsseed " + _("Find peers using DNS lookup (default: 1 unless -connect)") + "\n";
	strUsage += " -banscore=<n> " + _("Threshold for disconnecting misbehaving peers (default: 100)") + "\n";
	strUsage += " -bantime=<n> " + _("Number of seconds to keep misbehaving peers from reconnecting (default: 86400)") + "\n";
	strUsage += " -maxreceivebuffer=<n> " + _("Maximum per-connection receive buffer, <n>*1000 bytes (default: 5000)") + "\n";
	strUsage += " -maxsendbuffer=<n> " + _("Maximum per-connection send buffer, <n>*1000 bytes (default: 1000)") + "\n";
	#ifdef USE_UPNP
	#if USE_UPNP
	strUsage += " -upnp " + _("Use UPnP to map the listening port (default: 1 when listening)") + "\n";
	#else
	strUsage += " -upnp " + _("Use UPnP to map the listening port (default: 0)") + "\n";
	#endif
	#endif
	strUsage += " -paytxfee=<amt> " + _("Fee per KB to add to transactions you send") + "\n";
	if (fHaveGUI)
	strUsage += " -server " + _("Accept command line and JSON-RPC commands") + "\n";
	#if !defined(WIN32)
	if (fHaveGUI)
	strUsage += " -daemon " + _("Run in the background as a daemon and accept commands") + "\n";
	#endif
	strUsage += " -testnet " + _("Use the test network") + "\n";
	strUsage += " -debug " + _("Output extra debugging information. Implies all other -debug* options") + "\n";
	strUsage += " -debugnet " + _("Output extra network debugging information") + "\n";
	strUsage += " -logtimestamps " + _("Prepend debug output with timestamp") + "\n";
	strUsage += " -shrinkdebugfile " + _("Shrink debug.log file on client startup (default: 1 when no -debug)") + "\n";
	strUsage += " -printtoconsole " + _("Send trace/debug info to console instead of debug.log file") + "\n";
	strUsage += " -regtest " + _("Enter regression test mode, which uses a special chain in which blocks can be "
	"solved instantly. This is intended for regression testing tools and app development.") + "\n";
	#ifdef WIN32
	strUsage += " -printtodebugger " + _("Send trace/debug info to debugger") + "\n";
	#endif
	strUsage += " -rpcuser=<user> " + _("Username for JSON-RPC connections") + "\n";
	strUsage += " -rpcpassword=<pw> " + _("Password for JSON-RPC connections") + "\n";
	strUsage += " -rpcport=<port> " + _("Listen for JSON-RPC connections on <port> (default: 8332 or testnet: 18332)") + "\n";
	strUsage += " -rpcallowip=<ip> " + _("Allow JSON-RPC connections from specified IP address") + "\n";
	if (!fHaveGUI)
	strUsage += " -rpcconnect=<ip> " + _("Send commands to node running on <ip> (default: 127.0.0.1)") + "\n";
	strUsage += " -rpcthreads=<n> " + _("Set the number of threads to service RPC calls (default: 4)") + "\n";
	strUsage += " -blocknotify=<cmd> " + _("Execute command when the best block changes (%s in cmd is replaced by block hash)") + "\n";
	strUsage += " -walletnotify=<cmd> " + _("Execute command when a wallet transaction changes (%s in cmd is replaced by TxID)") + "\n";
	strUsage += " -alertnotify=<cmd> " + _("Execute command when a relevant alert is received or we see a really long fork (%s in cmd is replaced by message)") + "\n";
	strUsage += " -upgradewallet " + _("Upgrade wallet to latest format") + "\n";
	strUsage += " -keypool=<n> " + _("Set key pool size to <n> (default: 100)") + "\n";
	strUsage += " -rescan " + _("Rescan the block chain for missing wallet transactions") + "\n";
	strUsage += " -salvagewallet " + _("Attempt to recover private keys from a corrupt wallet.dat") + "\n";
	strUsage += " -checkblocks=<n> " + _("How many blocks to check at startup (default: 288, 0 = all)") + "\n";
	strUsage += " -checklevel=<n> " + _("How thorough the block verification is (0-4, default: 3)") + "\n";
	strUsage += " -txindex " + _("Maintain a full transaction index (default: 0)") + "\n";
	strUsage += " -loadblock=<file> " + _("Imports blocks from external blk000??.dat file") + "\n";
	strUsage += " -reindex " + _("Rebuild block chain index from current blk000??.dat files") + "\n";
	strUsage += " -par=<n> " + _("Set the number of script verification threads (up to 16, 0 = auto, <0 = leave that many cores free, default: 0)") + "\n";

	strUsage += "\n" + _("Block creation options:") + "\n";
	strUsage += " -blockminsize=<n> " + _("Set minimum block size in bytes (default: 0)") + "\n";
	strUsage += " -blockmaxsize=<n> " + _("Set maximum block size in bytes (default: 250000)") + "\n";
	strUsage += " -blockprioritysize=<n> " + _("Set maximum size of high-priority/low-fee transactions in bytes (default: 27000)") + "\n";

	strUsage += "\n" + _("SSL options: (see the Bitcoin Wiki for SSL setup instructions)") + "\n";
	strUsage += " -rpcssl " + _("Use OpenSSL (https) for JSON-RPC connections") + "\n";
	strUsage += " -rpcsslcertificatechainfile=<file.cert> " + _("Server certificate file (default: server.cert)") + "\n";
	strUsage += " -rpcsslprivatekeyfile=<file.pem> " + _("Server private key (default: server.pem)") + "\n";
	strUsage += " -rpcsslciphers=<ciphers> " + _("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<boost::filesystem::path> 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;
	LogPrintf("Reindexing block file blk%05u.dat...\n", (unsigned int)nFile);
	LoadExternalBlockFile(file, &pos);
	nFile++;
	}
	pblocktree->WriteReindexing(false);
	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();
	}

	// 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";
	LogPrintf("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;
	LogPrintf("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);

	// Initialize Windows Sockets
	WSADATA wsadata;
	int ret = WSAStartup(MAKEWORD(2,2), &wsadata);
	if (ret != NO_ERROR \|\| LOBYTE(wsadata.wVersion ) != 2 \|\| HIBYTE(wsadata.wVersion) != 2)
	{
	return InitError(strprintf("Error: Winsock library failed to start (WSAStartup returned error %d)", ret));
	}
	#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);

	#if defined (__SVR4) && defined (__sun)
	// ignore SIGPIPE on Solaris
	signal(SIGPIPE, SIG_IGN);
	#endif
	#endif

	// ********************************************************* Step 2: parameter interactions

	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", false)) {
	// Rewrite just private keys: rescan to find transactions
	SoftSetBoolArg("-rescan", true);
	}

	// Make sure enough file descriptors are available
	int nBind = std::max((int)mapArgs.count("-bind"), 1);
	nMaxConnections = GetArg("-maxconnections", 125);
	nMaxConnections = std::max(std::min(nMaxConnections, (int)(FD_SETSIZE - nBind - MIN_CORE_FILEDESCRIPTORS)), 0);
	int nFD = RaiseFileDescriptorLimit(nMaxConnections + MIN_CORE_FILEDESCRIPTORS);
	if (nFD < MIN_CORE_FILEDESCRIPTORS)
	return InitError(_("Not enough file descriptors available."));
	if (nFD - MIN_CORE_FILEDESCRIPTORS < nMaxConnections)
	nMaxConnections = nFD - MIN_CORE_FILEDESCRIPTORS;

	// ********************************************************* Step 3: parameter-to-internal-flags

	if (mapMultiArgs.count("-debug")) fDebug = true;
	fBenchmark = GetBoolArg("-benchmark", false);
	mempool.fChecks = GetBoolArg("-checkmempool", RegTest());
	Checkpoints::fEnabled = GetBoolArg("-checkpoints", true);

	// -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", false);

	if (fDaemon)
	fServer = true;
	else
	fServer = GetBoolArg("-server", false);

	/* force fServer when running without GUI */
	if (!fHaveGUI)
	fServer = true;
	fPrintToConsole = GetBoolArg("-printtoconsole", false);
	fPrintToDebugger = GetBoolArg("-printtodebugger", false);
	fLogTimestamps = GetBoolArg("-logtimestamps", false);

	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<unsigned char>(pszP2SH, pszP2SH+strlen(pszP2SH));

	// Fee-per-kilobyte amount considered the same as "free"
	// If you are mining, be careful setting this:
	// if you set it to zero then
	// a transaction spammer can cheaply fill blocks using
	// 1-satoshi-fee transactions. It should be set above the real
	// cost to you of processing a transaction.
	if (mapArgs.count("-mintxfee"))
	{
	int64 n = 0;
	if (ParseMoney(mapArgs["-mintxfee"], n) && n > 0)
	CTransaction::nMinTxFee = n;
	else
	return InitError(strprintf(_("Invalid amount for -mintxfee=<amount>: '%s'"), mapArgs["-mintxfee"].c_str()));
	}
	if (mapArgs.count("-minrelaytxfee"))
	{
	int64 n = 0;
	if (ParseMoney(mapArgs["-minrelaytxfee"], n) && n > 0)
	CTransaction::nMinRelayTxFee = n;
	else
	return InitError(strprintf(_("Invalid amount for -minrelaytxfee=<amount>: '%s'"), mapArgs["-minrelaytxfee"].c_str()));
	}

	if (mapArgs.count("-paytxfee"))
	{
	if (!ParseMoney(mapArgs["-paytxfee"], nTransactionFee))
	return InitError(strprintf(_("Invalid amount for -paytxfee=<amount>: '%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."));
	}

	strWalletFile = GetArg("-wallet", "wallet.dat");

	// ********************************************************* Step 4: application initialization: dir lock, daemonize, pidfile, debug log

	std::string strDataDir = GetDataDir().string();

	// Wallet file must be a plain filename without a directory
	if (strWalletFile != boost::filesystem::basename(strWalletFile) + boost::filesystem::extension(strWalletFile))
	return InitError(strprintf(_("Wallet %s resides outside data directory %s"), strWalletFile.c_str(), strDataDir.c_str()));

	// 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();
	LogPrintf("\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n");
	LogPrintf("Bitcoin version %s (%s)\n", FormatFullVersion().c_str(), CLIENT_DATE.c_str());
	LogPrintf("Using OpenSSL version %s\n", SSLeay_version(SSLEAY_VERSION));
	if (!fLogTimestamps)
	LogPrintf("Startup time: %s\n", DateTimeStrFormat("%Y-%m-%d %H:%M:%S", GetTime()).c_str());
	LogPrintf("Default data directory %s\n", GetDefaultDataDir().string().c_str());
	LogPrintf("Using data directory %s\n", strDataDir.c_str());
	LogPrintf("Using at most %i connections (%i file descriptors available)\n", nMaxConnections, nFD);
	std::ostringstream strErrors;

	if (fDaemon)
	fprintf(stdout, "Bitcoin server starting\n");

	if (nScriptCheckThreads) {
	LogPrintf("Using %u threads for script verification\n", nScriptCheckThreads);
	for (int i=0; i<nScriptCheckThreads-1; i++)
	threadGroup.create_thread(&ThreadScriptCheck);
	}

	int64 nStart;

	// ********************************************************* Step 5: verify wallet database integrity

	uiInterface.InitMessage(_("Verifying wallet..."));

	if (!bitdb.Open(GetDataDir()))
	{
	// try moving the database env out of the way
	boost::filesystem::path pathDatabase = GetDataDir() / "database";
	boost::filesystem::path pathDatabaseBak = GetDataDir() / strprintf("database.%"PRI64d".bak", GetTime());
	try {
	boost::filesystem::rename(pathDatabase, pathDatabaseBak);
	LogPrintf("Moved old %s to %s. Retrying.\n", pathDatabase.string().c_str(), pathDatabaseBak.string().c_str());
	} catch(boost::filesystem::filesystem_error &error) {
	// failure is ok (well, not really, but it's not worse than what we started with)
	}

	// try again
	if (!bitdb.Open(GetDataDir())) {
	// if it still fails, it probably means we can't even create the database env
	string msg = strprintf(_("Error initializing wallet database environment %s!"), strDataDir.c_str());
	return InitError(msg);
	}
	}

	if (GetBoolArg("-salvagewallet", false))
	{
	// Recover readable keypairs:
	if (!CWalletDB::Recover(bitdb, strWalletFile, true))
	return false;
	}

	if (filesystem::exists(GetDataDir() / strWalletFile))
	{
	CDBEnv::VerifyResult r = bitdb.Verify(strWalletFile, CWalletDB::Recover);
	if (r == CDBEnv::RECOVER_OK)
	{
	string msg = strprintf(_("Warning: wallet.dat corrupt, data salvaged!"
	" Original wallet.dat saved as wallet.{timestamp}.bak in %s; if"
	" your balance or transactions are incorrect you should"
	" restore from a backup."), strDataDir.c_str());
	InitWarning(msg);
	}
	if (r == CDBEnv::RECOVER_FAIL)
	return InitError(_("wallet.dat corrupt, salvage failed"));
	}

	// ********************************************************* Step 6: network initialization

	RegisterNodeSignals(GetNodeSignals());

	int nSocksVersion = GetArg("-socks", 5);
	if (nSocksVersion != 4 && nSocksVersion != 5)
	return InitError(strprintf(_("Unknown -socks proxy version requested: %i"), nSocksVersion));

	if (mapArgs.count("-onlynet")) {
	std::set<enum Network> 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", false);

	// 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);
	LogPrintf("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.
	LogPrintf("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;
	}

	// If the loaded chain has a wrong genesis, bail out immediately
	// (we're likely using a testnet datadir, or the other way around).
	if (!mapBlockIndex.empty() && pindexGenesisBlock == NULL)
	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()) {
	strLoadError = _("Error initializing block database");
	break;
	}

	// Check for changed -txindex state
	if (fTxIndex != GetBoolArg("-txindex", false)) {
	strLoadError = _("You need to rebuild the database using -reindex to change -txindex");
	break;
	}

	uiInterface.InitMessage(_("Verifying blocks..."));
	if (!VerifyDB(GetArg("-checklevel", 3),
	GetArg("-checkblocks", 288))) {
	strLoadError = _("Corrupted block database detected");
	break;
	}
	} catch(std::exception &e) {
	if (fDebug) LogPrintf("%s\n", e.what());
	strLoadError = _("Error opening block database");
	break;
	}

	fLoaded = true;
	} while(false);

	if (!fLoaded) {
	// first suggest a reindex
	if (!fReset) {
	bool fRet = uiInterface.ThreadSafeMessageBox(
	strLoadError + ".\n\n" + _("Do you want to rebuild the block database now?"),
	"", CClientUIInterface::MSG_ERROR \| CClientUIInterface::BTN_ABORT);
	if (fRet) {
	fReindex = true;
	fRequestShutdown = false;
	} else {
	LogPrintf("Aborted block database rebuild. Exiting.\n");
	return false;
	}
	} else {
	return InitError(strLoadError);
	}
	}
	}

	// 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)
	{
	LogPrintf("Shutdown requested. Exiting.\n");
	return false;
	}
	LogPrintf(" block index %15"PRI64d"ms\n", GetTimeMillis() - nStart);

	if (GetBoolArg("-printblockindex", false) \|\| GetBoolArg("-printblocktree", false))
	{
	PrintBlockTree();
	return false;
	}

	if (mapArgs.count("-printblock"))
	{
	string strMatch = mapArgs["-printblock"];
	int nFound = 0;
	for (map<uint256, CBlockIndex*>::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;
	ReadBlockFromDisk(block, pindex);
	block.BuildMerkleTree();
	block.print();
	LogPrintf("\n");
	nFound++;
	}
	}
	if (nFound == 0)
	LogPrintf("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(strWalletFile);
	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";
	LogPrintf("%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
	{
	LogPrintf("Performing wallet upgrade to %i\n", FEATURE_LATEST);
	nMaxVersion = CLIENT_VERSION;
	pwalletMain->SetMinVersion(FEATURE_LATEST); // permanently upgrade the wallet immediately
	}
	else
	LogPrintf("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)) {
	pwalletMain->SetDefaultKey(newDefaultKey);
	if (!pwalletMain->SetAddressBook(pwalletMain->vchDefaultKey.GetID(), "", "receive"))
	strErrors << _("Cannot write default address") << "\n";
	}

	pwalletMain->SetBestChain(CBlockLocator(pindexBest));
	}

	LogPrintf("%s", strErrors.str().c_str());
	LogPrintf(" wallet %15"PRI64d"ms\n", GetTimeMillis() - nStart);

	RegisterWallet(pwalletMain);

	CBlockIndex *pindexRescan = pindexBest;
	if (GetBoolArg("-rescan", false))
	pindexRescan = pindexGenesisBlock;
	else
	{
	CWalletDB walletdb(strWalletFile);
	CBlockLocator locator;
	if (walletdb.ReadBestBlock(locator))
	pindexRescan = locator.GetBlockIndex();
	else
	pindexRescan = pindexGenesisBlock;
	}
	if (pindexBest && pindexBest != pindexRescan)
	{
	uiInterface.InitMessage(_("Rescanning..."));
	LogPrintf("Rescanning last %i blocks (from block %i)...\n", pindexBest->nHeight - pindexRescan->nHeight, pindexRescan->nHeight);
	nStart = GetTimeMillis();
	pwalletMain->ScanForWalletTransactions(pindexRescan, true);
	LogPrintf(" rescan %15"PRI64d"ms\n", GetTimeMillis() - nStart);
	pwalletMain->SetBestChain(CBlockLocator(pindexBest));
	nWalletDBUpdated++;
	}

	// ********************************************************* 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<boost::filesystem::path> 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))
	LogPrintf("Invalid or missing peers.dat; recreating\n");
	}

	LogPrintf("Loaded %i addresses from peers.dat %"PRI64d"ms\n",
	addrman.size(), GetTimeMillis() - nStart);

	// ********************************************************* Step 11: start node

	if (!CheckDiskSpace())
	return false;

	if (!strErrors.str().empty())
	return InitError(strErrors.str());

	RandAddSeedPerfmon();

	//// debug print
	LogPrintf("mapBlockIndex.size() = %"PRIszu"\n", mapBlockIndex.size());
	LogPrintf("nBestHeight = %d\n", nBestHeight);
	LogPrintf("setKeyPool.size() = %"PRIszu"\n", pwalletMain ? pwalletMain->setKeyPool.size() : 0);
	LogPrintf("mapWallet.size() = %"PRIszu"\n", pwalletMain ? pwalletMain->mapWallet.size() : 0);
	LogPrintf("mapAddressBook.size() = %"PRIszu"\n", pwalletMain ? pwalletMain->mapAddressBook.size() : 0);

	StartNode(threadGroup);

	// InitRPCMining is needed here so getwork/getblocktemplate in the GUI debug console works properly.
	InitRPCMining();
	if (fServer)
	StartRPCThreads();

	// Generate coins in the background
	if (pwalletMain)
	GenerateBitcoins(GetBoolArg("-gen", false), pwalletMain);

	// ********************************************************* Step 12: finished

	uiInterface.InitMessage(_("Done loading"));

	if (pwalletMain) {
	// 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;
	}

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