1 // Copyright (c) 2009-2010 Satoshi Nakamoto
2 // Copyright (c) 2009-2016 The Bitcoin Core developers
3 // Distributed under the MIT software license, see the accompanying
4 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
6 #if defined(HAVE_CONFIG_H)
7 #include "config/bitcoin-config.h"
15 #include "chainparams.h"
16 #include "checkpoints.h"
17 #include "compat/sanity.h"
18 #include "consensus/validation.h"
20 #include "httpserver.h"
23 #include "validation.h"
27 #include "net_processing.h"
28 #include "policy/feerate.h"
29 #include "policy/fees.h"
30 #include "policy/policy.h"
31 #include "rpc/server.h"
32 #include "rpc/register.h"
33 #include "rpc/blockchain.h"
34 #include "script/standard.h"
35 #include "script/sigcache.h"
36 #include "scheduler.h"
39 #include "txmempool.h"
40 #include "torcontrol.h"
41 #include "ui_interface.h"
43 #include "utilmoneystr.h"
44 #include "validationinterface.h"
46 #include "wallet/wallet.h"
57 #include <boost/algorithm/string/classification.hpp>
58 #include <boost/algorithm/string/replace.hpp>
59 #include <boost/algorithm/string/split.hpp>
60 #include <boost/bind.hpp>
61 #include <boost/interprocess/sync/file_lock.hpp>
62 #include <boost/thread.hpp>
63 #include <openssl/crypto.h>
66 #include "zmq/zmqnotificationinterface.h"
69 bool fFeeEstimatesInitialized
= false;
70 static const bool DEFAULT_PROXYRANDOMIZE
= true;
71 static const bool DEFAULT_REST_ENABLE
= false;
72 static const bool DEFAULT_DISABLE_SAFEMODE
= true;
73 static const bool DEFAULT_STOPAFTERBLOCKIMPORT
= false;
75 std::unique_ptr
<CConnman
> g_connman
;
76 std::unique_ptr
<PeerLogicValidation
> peerLogic
;
79 static CZMQNotificationInterface
* pzmqNotificationInterface
= nullptr;
83 // Win32 LevelDB doesn't use filedescriptors, and the ones used for
84 // accessing block files don't count towards the fd_set size limit
86 #define MIN_CORE_FILEDESCRIPTORS 0
88 #define MIN_CORE_FILEDESCRIPTORS 150
91 static const char* FEE_ESTIMATES_FILENAME
="fee_estimates.dat";
93 //////////////////////////////////////////////////////////////////////////////
99 // Thread management and startup/shutdown:
101 // The network-processing threads are all part of a thread group
102 // created by AppInit() or the Qt main() function.
104 // A clean exit happens when StartShutdown() or the SIGTERM
105 // signal handler sets fRequestShutdown, which triggers
106 // the DetectShutdownThread(), which interrupts the main thread group.
107 // DetectShutdownThread() then exits, which causes AppInit() to
108 // continue (it .joins the shutdown thread).
109 // Shutdown() is then
110 // called to clean up database connections, and stop other
111 // threads that should only be stopped after the main network-processing
112 // threads have exited.
114 // Shutdown for Qt is very similar, only it uses a QTimer to detect
115 // fRequestShutdown getting set, and then does the normal Qt
119 std::atomic
<bool> fRequestShutdown(false);
120 std::atomic
<bool> fDumpMempoolLater(false);
124 fRequestShutdown
= true;
126 bool ShutdownRequested()
128 return fRequestShutdown
;
132 * This is a minimally invasive approach to shutdown on LevelDB read errors from the
133 * chainstate, while keeping user interface out of the common library, which is shared
134 * between bitcoind, and bitcoin-qt and non-server tools.
136 class CCoinsViewErrorCatcher
: public CCoinsViewBacked
139 explicit CCoinsViewErrorCatcher(CCoinsView
* view
) : CCoinsViewBacked(view
) {}
140 bool GetCoin(const COutPoint
&outpoint
, Coin
&coin
) const override
{
142 return CCoinsViewBacked::GetCoin(outpoint
, coin
);
143 } catch(const std::runtime_error
& e
) {
144 uiInterface
.ThreadSafeMessageBox(_("Error reading from database, shutting down."), "", CClientUIInterface::MSG_ERROR
);
145 LogPrintf("Error reading from database: %s\n", e
.what());
146 // Starting the shutdown sequence and returning false to the caller would be
147 // interpreted as 'entry not found' (as opposed to unable to read data), and
148 // could lead to invalid interpretation. Just exit immediately, as we can't
149 // continue anyway, and all writes should be atomic.
153 // Writes do not need similar protection, as failure to write is handled by the caller.
156 static CCoinsViewErrorCatcher
*pcoinscatcher
= nullptr;
157 static std::unique_ptr
<ECCVerifyHandle
> globalVerifyHandle
;
159 void Interrupt(boost::thread_group
& threadGroup
)
161 InterruptHTTPServer();
165 InterruptTorControl();
167 g_connman
->Interrupt();
168 threadGroup
.interrupt_all();
173 LogPrintf("%s: In progress...\n", __func__
);
174 static CCriticalSection cs_Shutdown
;
175 TRY_LOCK(cs_Shutdown
, lockShutdown
);
179 /// Note: Shutdown() must be able to handle cases in which initialization failed part of the way,
180 /// for example if the data directory was found to be locked.
181 /// Be sure that anything that writes files or flushes caches only does this if the respective
182 /// module was initialized.
183 RenameThread("bitcoin-shutoff");
184 mempool
.AddTransactionsUpdated(1);
191 for (CWalletRef pwallet
: vpwallets
) {
192 pwallet
->Flush(false);
196 UnregisterValidationInterface(peerLogic
.get());
201 UnregisterNodeSignals(GetNodeSignals());
202 if (fDumpMempoolLater
&& gArgs
.GetArg("-persistmempool", DEFAULT_PERSIST_MEMPOOL
)) {
206 if (fFeeEstimatesInitialized
)
208 ::feeEstimator
.FlushUnconfirmed(::mempool
);
209 fs::path est_path
= GetDataDir() / FEE_ESTIMATES_FILENAME
;
210 CAutoFile
est_fileout(fsbridge::fopen(est_path
, "wb"), SER_DISK
, CLIENT_VERSION
);
211 if (!est_fileout
.IsNull())
212 ::feeEstimator
.Write(est_fileout
);
214 LogPrintf("%s: Failed to write fee estimates to %s\n", __func__
, est_path
.string());
215 fFeeEstimatesInitialized
= false;
218 // FlushStateToDisk generates a SetBestChain callback, which we should avoid missing
219 if (pcoinsTip
!= nullptr) {
223 // After there are no more peers/RPC left to give us new data which may generate
224 // CValidationInterface callbacks, flush them...
225 GetMainSignals().FlushBackgroundCallbacks();
227 // Any future callbacks will be dropped. This should absolutely be safe - if
228 // missing a callback results in an unrecoverable situation, unclean shutdown
229 // would too. The only reason to do the above flushes is to let the wallet catch
230 // up with our current chain to avoid any strange pruning edge cases and make
231 // next startup faster by avoiding rescan.
235 if (pcoinsTip
!= nullptr) {
240 delete pcoinscatcher
;
241 pcoinscatcher
= nullptr;
243 pcoinsdbview
= nullptr;
245 pblocktree
= nullptr;
248 for (CWalletRef pwallet
: vpwallets
) {
249 pwallet
->Flush(true);
254 if (pzmqNotificationInterface
) {
255 UnregisterValidationInterface(pzmqNotificationInterface
);
256 delete pzmqNotificationInterface
;
257 pzmqNotificationInterface
= nullptr;
263 fs::remove(GetPidFile());
264 } catch (const fs::filesystem_error
& e
) {
265 LogPrintf("%s: Unable to remove pidfile: %s\n", __func__
, e
.what());
268 UnregisterAllValidationInterfaces();
269 GetMainSignals().UnregisterBackgroundSignalScheduler();
271 for (CWalletRef pwallet
: vpwallets
) {
276 globalVerifyHandle
.reset();
278 LogPrintf("%s: done\n", __func__
);
282 * Signal handlers are very limited in what they are allowed to do.
283 * The execution context the handler is invoked in is not guaranteed,
284 * so we restrict handler operations to just touching variables:
286 static void HandleSIGTERM(int)
288 fRequestShutdown
= true;
291 static void HandleSIGHUP(int)
293 fReopenDebugLog
= true;
297 static void registerSignalHandler(int signal
, void(*handler
)(int))
300 sa
.sa_handler
= handler
;
301 sigemptyset(&sa
.sa_mask
);
303 sigaction(signal
, &sa
, nullptr);
309 uiInterface
.NotifyBlockTip
.connect(&RPCNotifyBlockChange
);
314 uiInterface
.NotifyBlockTip
.disconnect(&RPCNotifyBlockChange
);
315 RPCNotifyBlockChange(false, nullptr);
316 cvBlockChange
.notify_all();
317 LogPrint(BCLog::RPC
, "RPC stopped.\n");
320 void OnRPCPreCommand(const CRPCCommand
& cmd
)
323 std::string strWarning
= GetWarnings("rpc");
324 if (strWarning
!= "" && !gArgs
.GetBoolArg("-disablesafemode", DEFAULT_DISABLE_SAFEMODE
) &&
326 throw JSONRPCError(RPC_FORBIDDEN_BY_SAFE_MODE
, std::string("Safe mode: ") + strWarning
);
329 std::string
HelpMessage(HelpMessageMode mode
)
331 const auto defaultBaseParams
= CreateBaseChainParams(CBaseChainParams::MAIN
);
332 const auto testnetBaseParams
= CreateBaseChainParams(CBaseChainParams::TESTNET
);
333 const auto defaultChainParams
= CreateChainParams(CBaseChainParams::MAIN
);
334 const auto testnetChainParams
= CreateChainParams(CBaseChainParams::TESTNET
);
335 const bool showDebug
= gArgs
.GetBoolArg("-help-debug", false);
337 // When adding new options to the categories, please keep and ensure alphabetical ordering.
338 // Do not translate _(...) -help-debug options, Many technical terms, and only a very small audience, so is unnecessary stress to translators.
339 std::string strUsage
= HelpMessageGroup(_("Options:"));
340 strUsage
+= HelpMessageOpt("-?", _("Print this help message and exit"));
341 strUsage
+= HelpMessageOpt("-version", _("Print version and exit"));
342 strUsage
+= HelpMessageOpt("-alertnotify=<cmd>", _("Execute command when a relevant alert is received or we see a really long fork (%s in cmd is replaced by message)"));
343 strUsage
+= HelpMessageOpt("-blocknotify=<cmd>", _("Execute command when the best block changes (%s in cmd is replaced by block hash)"));
345 strUsage
+= HelpMessageOpt("-blocksonly", strprintf(_("Whether to operate in a blocks only mode (default: %u)"), DEFAULT_BLOCKSONLY
));
346 strUsage
+=HelpMessageOpt("-assumevalid=<hex>", strprintf(_("If this block is in the chain assume that it and its ancestors are valid and potentially skip their script verification (0 to verify all, default: %s, testnet: %s)"), defaultChainParams
->GetConsensus().defaultAssumeValid
.GetHex(), testnetChainParams
->GetConsensus().defaultAssumeValid
.GetHex()));
347 strUsage
+= HelpMessageOpt("-conf=<file>", strprintf(_("Specify configuration file (default: %s)"), BITCOIN_CONF_FILENAME
));
348 if (mode
== HMM_BITCOIND
)
351 strUsage
+= HelpMessageOpt("-daemon", _("Run in the background as a daemon and accept commands"));
354 strUsage
+= HelpMessageOpt("-datadir=<dir>", _("Specify data directory"));
356 strUsage
+= HelpMessageOpt("-dbbatchsize", strprintf("Maximum database write batch size in bytes (default: %u)", nDefaultDbBatchSize
));
358 strUsage
+= HelpMessageOpt("-dbcache=<n>", strprintf(_("Set database cache size in megabytes (%d to %d, default: %d)"), nMinDbCache
, nMaxDbCache
, nDefaultDbCache
));
360 strUsage
+= HelpMessageOpt("-feefilter", strprintf("Tell other nodes to filter invs to us by our mempool min fee (default: %u)", DEFAULT_FEEFILTER
));
361 strUsage
+= HelpMessageOpt("-loadblock=<file>", _("Imports blocks from external blk000??.dat file on startup"));
362 strUsage
+= HelpMessageOpt("-maxorphantx=<n>", strprintf(_("Keep at most <n> unconnectable transactions in memory (default: %u)"), DEFAULT_MAX_ORPHAN_TRANSACTIONS
));
363 strUsage
+= HelpMessageOpt("-maxmempool=<n>", strprintf(_("Keep the transaction memory pool below <n> megabytes (default: %u)"), DEFAULT_MAX_MEMPOOL_SIZE
));
364 strUsage
+= HelpMessageOpt("-mempoolexpiry=<n>", strprintf(_("Do not keep transactions in the mempool longer than <n> hours (default: %u)"), DEFAULT_MEMPOOL_EXPIRY
));
365 strUsage
+= HelpMessageOpt("-persistmempool", strprintf(_("Whether to save the mempool on shutdown and load on restart (default: %u)"), DEFAULT_PERSIST_MEMPOOL
));
366 strUsage
+= HelpMessageOpt("-blockreconstructionextratxn=<n>", strprintf(_("Extra transactions to keep in memory for compact block reconstructions (default: %u)"), DEFAULT_BLOCK_RECONSTRUCTION_EXTRA_TXN
));
367 strUsage
+= HelpMessageOpt("-par=<n>", strprintf(_("Set the number of script verification threads (%u to %d, 0 = auto, <0 = leave that many cores free, default: %d)"),
368 -GetNumCores(), MAX_SCRIPTCHECK_THREADS
, DEFAULT_SCRIPTCHECK_THREADS
));
370 strUsage
+= HelpMessageOpt("-pid=<file>", strprintf(_("Specify pid file (default: %s)"), BITCOIN_PID_FILENAME
));
372 strUsage
+= HelpMessageOpt("-prune=<n>", strprintf(_("Reduce storage requirements by enabling pruning (deleting) of old blocks. This allows the pruneblockchain RPC to be called to delete specific blocks, and enables automatic pruning of old blocks if a target size in MiB is provided. This mode is incompatible with -txindex and -rescan. "
373 "Warning: Reverting this setting requires re-downloading the entire blockchain. "
374 "(default: 0 = disable pruning blocks, 1 = allow manual pruning via RPC, >%u = automatically prune block files to stay under the specified target size in MiB)"), MIN_DISK_SPACE_FOR_BLOCK_FILES
/ 1024 / 1024));
375 strUsage
+= HelpMessageOpt("-reindex-chainstate", _("Rebuild chain state from the currently indexed blocks"));
376 strUsage
+= HelpMessageOpt("-reindex", _("Rebuild chain state and block index from the blk*.dat files on disk"));
378 strUsage
+= HelpMessageOpt("-sysperms", _("Create new files with system default permissions, instead of umask 077 (only effective with disabled wallet functionality)"));
380 strUsage
+= HelpMessageOpt("-txindex", strprintf(_("Maintain a full transaction index, used by the getrawtransaction rpc call (default: %u)"), DEFAULT_TXINDEX
));
382 strUsage
+= HelpMessageGroup(_("Connection options:"));
383 strUsage
+= HelpMessageOpt("-addnode=<ip>", _("Add a node to connect to and attempt to keep the connection open"));
384 strUsage
+= HelpMessageOpt("-banscore=<n>", strprintf(_("Threshold for disconnecting misbehaving peers (default: %u)"), DEFAULT_BANSCORE_THRESHOLD
));
385 strUsage
+= HelpMessageOpt("-bantime=<n>", strprintf(_("Number of seconds to keep misbehaving peers from reconnecting (default: %u)"), DEFAULT_MISBEHAVING_BANTIME
));
386 strUsage
+= HelpMessageOpt("-bind=<addr>", _("Bind to given address and always listen on it. Use [host]:port notation for IPv6"));
387 strUsage
+= HelpMessageOpt("-connect=<ip>", _("Connect only to the specified node(s); -connect=0 disables automatic connections"));
388 strUsage
+= HelpMessageOpt("-discover", _("Discover own IP addresses (default: 1 when listening and no -externalip or -proxy)"));
389 strUsage
+= HelpMessageOpt("-dns", _("Allow DNS lookups for -addnode, -seednode and -connect") + " " + strprintf(_("(default: %u)"), DEFAULT_NAME_LOOKUP
));
390 strUsage
+= HelpMessageOpt("-dnsseed", _("Query for peer addresses via DNS lookup, if low on addresses (default: 1 unless -connect used)"));
391 strUsage
+= HelpMessageOpt("-externalip=<ip>", _("Specify your own public address"));
392 strUsage
+= HelpMessageOpt("-forcednsseed", strprintf(_("Always query for peer addresses via DNS lookup (default: %u)"), DEFAULT_FORCEDNSSEED
));
393 strUsage
+= HelpMessageOpt("-listen", _("Accept connections from outside (default: 1 if no -proxy or -connect)"));
394 strUsage
+= HelpMessageOpt("-listenonion", strprintf(_("Automatically create Tor hidden service (default: %d)"), DEFAULT_LISTEN_ONION
));
395 strUsage
+= HelpMessageOpt("-maxconnections=<n>", strprintf(_("Maintain at most <n> connections to peers (default: %u)"), DEFAULT_MAX_PEER_CONNECTIONS
));
396 strUsage
+= HelpMessageOpt("-maxreceivebuffer=<n>", strprintf(_("Maximum per-connection receive buffer, <n>*1000 bytes (default: %u)"), DEFAULT_MAXRECEIVEBUFFER
));
397 strUsage
+= HelpMessageOpt("-maxsendbuffer=<n>", strprintf(_("Maximum per-connection send buffer, <n>*1000 bytes (default: %u)"), DEFAULT_MAXSENDBUFFER
));
398 strUsage
+= HelpMessageOpt("-maxtimeadjustment", strprintf(_("Maximum allowed median peer time offset adjustment. Local perspective of time may be influenced by peers forward or backward by this amount. (default: %u seconds)"), DEFAULT_MAX_TIME_ADJUSTMENT
));
399 strUsage
+= HelpMessageOpt("-onion=<ip:port>", strprintf(_("Use separate SOCKS5 proxy to reach peers via Tor hidden services (default: %s)"), "-proxy"));
400 strUsage
+= HelpMessageOpt("-onlynet=<net>", _("Only connect to nodes in network <net> (ipv4, ipv6 or onion)"));
401 strUsage
+= HelpMessageOpt("-permitbaremultisig", strprintf(_("Relay non-P2SH multisig (default: %u)"), DEFAULT_PERMIT_BAREMULTISIG
));
402 strUsage
+= HelpMessageOpt("-peerbloomfilters", strprintf(_("Support filtering of blocks and transaction with bloom filters (default: %u)"), DEFAULT_PEERBLOOMFILTERS
));
403 strUsage
+= HelpMessageOpt("-port=<port>", strprintf(_("Listen for connections on <port> (default: %u or testnet: %u)"), defaultChainParams
->GetDefaultPort(), testnetChainParams
->GetDefaultPort()));
404 strUsage
+= HelpMessageOpt("-proxy=<ip:port>", _("Connect through SOCKS5 proxy"));
405 strUsage
+= HelpMessageOpt("-proxyrandomize", strprintf(_("Randomize credentials for every proxy connection. This enables Tor stream isolation (default: %u)"), DEFAULT_PROXYRANDOMIZE
));
406 strUsage
+= HelpMessageOpt("-seednode=<ip>", _("Connect to a node to retrieve peer addresses, and disconnect"));
407 strUsage
+= HelpMessageOpt("-timeout=<n>", strprintf(_("Specify connection timeout in milliseconds (minimum: 1, default: %d)"), DEFAULT_CONNECT_TIMEOUT
));
408 strUsage
+= HelpMessageOpt("-torcontrol=<ip>:<port>", strprintf(_("Tor control port to use if onion listening enabled (default: %s)"), DEFAULT_TOR_CONTROL
));
409 strUsage
+= HelpMessageOpt("-torpassword=<pass>", _("Tor control port password (default: empty)"));
412 strUsage
+= HelpMessageOpt("-upnp", _("Use UPnP to map the listening port (default: 1 when listening and no -proxy)"));
414 strUsage
+= HelpMessageOpt("-upnp", strprintf(_("Use UPnP to map the listening port (default: %u)"), 0));
417 strUsage
+= HelpMessageOpt("-whitebind=<addr>", _("Bind to given address and whitelist peers connecting to it. Use [host]:port notation for IPv6"));
418 strUsage
+= HelpMessageOpt("-whitelist=<IP address or network>", _("Whitelist peers connecting from the given IP address (e.g. 1.2.3.4) or CIDR notated network (e.g. 1.2.3.0/24). Can be specified multiple times.") +
419 " " + _("Whitelisted peers cannot be DoS banned and their transactions are always relayed, even if they are already in the mempool, useful e.g. for a gateway"));
420 strUsage
+= HelpMessageOpt("-maxuploadtarget=<n>", strprintf(_("Tries to keep outbound traffic under the given target (in MiB per 24h), 0 = no limit (default: %d)"), DEFAULT_MAX_UPLOAD_TARGET
));
423 strUsage
+= CWallet::GetWalletHelpString(showDebug
);
427 strUsage
+= HelpMessageGroup(_("ZeroMQ notification options:"));
428 strUsage
+= HelpMessageOpt("-zmqpubhashblock=<address>", _("Enable publish hash block in <address>"));
429 strUsage
+= HelpMessageOpt("-zmqpubhashtx=<address>", _("Enable publish hash transaction in <address>"));
430 strUsage
+= HelpMessageOpt("-zmqpubrawblock=<address>", _("Enable publish raw block in <address>"));
431 strUsage
+= HelpMessageOpt("-zmqpubrawtx=<address>", _("Enable publish raw transaction in <address>"));
434 strUsage
+= HelpMessageGroup(_("Debugging/Testing options:"));
435 strUsage
+= HelpMessageOpt("-uacomment=<cmt>", _("Append comment to the user agent string"));
438 strUsage
+= HelpMessageOpt("-checkblocks=<n>", strprintf(_("How many blocks to check at startup (default: %u, 0 = all)"), DEFAULT_CHECKBLOCKS
));
439 strUsage
+= HelpMessageOpt("-checklevel=<n>", strprintf(_("How thorough the block verification of -checkblocks is (0-4, default: %u)"), DEFAULT_CHECKLEVEL
));
440 strUsage
+= HelpMessageOpt("-checkblockindex", strprintf("Do a full consistency check for mapBlockIndex, setBlockIndexCandidates, chainActive and mapBlocksUnlinked occasionally. Also sets -checkmempool (default: %u)", defaultChainParams
->DefaultConsistencyChecks()));
441 strUsage
+= HelpMessageOpt("-checkmempool=<n>", strprintf("Run checks every <n> transactions (default: %u)", defaultChainParams
->DefaultConsistencyChecks()));
442 strUsage
+= HelpMessageOpt("-checkpoints", strprintf("Disable expensive verification for known chain history (default: %u)", DEFAULT_CHECKPOINTS_ENABLED
));
443 strUsage
+= HelpMessageOpt("-disablesafemode", strprintf("Disable safemode, override a real safe mode event (default: %u)", DEFAULT_DISABLE_SAFEMODE
));
444 strUsage
+= HelpMessageOpt("-testsafemode", strprintf("Force safe mode (default: %u)", DEFAULT_TESTSAFEMODE
));
445 strUsage
+= HelpMessageOpt("-dropmessagestest=<n>", "Randomly drop 1 of every <n> network messages");
446 strUsage
+= HelpMessageOpt("-fuzzmessagestest=<n>", "Randomly fuzz 1 of every <n> network messages");
447 strUsage
+= HelpMessageOpt("-stopafterblockimport", strprintf("Stop running after importing blocks from disk (default: %u)", DEFAULT_STOPAFTERBLOCKIMPORT
));
448 strUsage
+= HelpMessageOpt("-stopatheight", strprintf("Stop running after reaching the given height in the main chain (default: %u)", DEFAULT_STOPATHEIGHT
));
450 strUsage
+= HelpMessageOpt("-limitancestorcount=<n>", strprintf("Do not accept transactions if number of in-mempool ancestors is <n> or more (default: %u)", DEFAULT_ANCESTOR_LIMIT
));
451 strUsage
+= HelpMessageOpt("-limitancestorsize=<n>", strprintf("Do not accept transactions whose size with all in-mempool ancestors exceeds <n> kilobytes (default: %u)", DEFAULT_ANCESTOR_SIZE_LIMIT
));
452 strUsage
+= HelpMessageOpt("-limitdescendantcount=<n>", strprintf("Do not accept transactions if any ancestor would have <n> or more in-mempool descendants (default: %u)", DEFAULT_DESCENDANT_LIMIT
));
453 strUsage
+= HelpMessageOpt("-limitdescendantsize=<n>", strprintf("Do not accept transactions if any ancestor would have more than <n> kilobytes of in-mempool descendants (default: %u).", DEFAULT_DESCENDANT_SIZE_LIMIT
));
454 strUsage
+= HelpMessageOpt("-vbparams=deployment:start:end", "Use given start/end times for specified version bits deployment (regtest-only)");
456 strUsage
+= HelpMessageOpt("-debug=<category>", strprintf(_("Output debugging information (default: %u, supplying <category> is optional)"), 0) + ". " +
457 _("If <category> is not supplied or if <category> = 1, output all debugging information.") + " " + _("<category> can be:") + " " + ListLogCategories() + ".");
458 strUsage
+= HelpMessageOpt("-debugexclude=<category>", strprintf(_("Exclude debugging information for a category. Can be used in conjunction with -debug=1 to output debug logs for all categories except one or more specified categories.")));
459 strUsage
+= HelpMessageOpt("-help-debug", _("Show all debugging options (usage: --help -help-debug)"));
460 strUsage
+= HelpMessageOpt("-logips", strprintf(_("Include IP addresses in debug output (default: %u)"), DEFAULT_LOGIPS
));
461 strUsage
+= HelpMessageOpt("-logtimestamps", strprintf(_("Prepend debug output with timestamp (default: %u)"), DEFAULT_LOGTIMESTAMPS
));
464 strUsage
+= HelpMessageOpt("-logtimemicros", strprintf("Add microsecond precision to debug timestamps (default: %u)", DEFAULT_LOGTIMEMICROS
));
465 strUsage
+= HelpMessageOpt("-mocktime=<n>", "Replace actual time with <n> seconds since epoch (default: 0)");
466 strUsage
+= HelpMessageOpt("-maxsigcachesize=<n>", strprintf("Limit sum of signature cache and script execution cache sizes to <n> MiB (default: %u)", DEFAULT_MAX_SIG_CACHE_SIZE
));
467 strUsage
+= HelpMessageOpt("-maxtipage=<n>", strprintf("Maximum tip age in seconds to consider node in initial block download (default: %u)", DEFAULT_MAX_TIP_AGE
));
469 strUsage
+= HelpMessageOpt("-maxtxfee=<amt>", strprintf(_("Maximum total fees (in %s) to use in a single wallet transaction or raw transaction; setting this too low may abort large transactions (default: %s)"),
470 CURRENCY_UNIT
, FormatMoney(DEFAULT_TRANSACTION_MAXFEE
)));
471 strUsage
+= HelpMessageOpt("-printtoconsole", _("Send trace/debug info to console instead of debug.log file"));
474 strUsage
+= HelpMessageOpt("-printpriority", strprintf("Log transaction fee per kB when mining blocks (default: %u)", DEFAULT_PRINTPRIORITY
));
476 strUsage
+= HelpMessageOpt("-shrinkdebugfile", _("Shrink debug.log file on client startup (default: 1 when no -debug)"));
478 AppendParamsHelpMessages(strUsage
, showDebug
);
480 strUsage
+= HelpMessageGroup(_("Node relay options:"));
482 strUsage
+= HelpMessageOpt("-acceptnonstdtxn", strprintf("Relay and mine \"non-standard\" transactions (%sdefault: %u)", "testnet/regtest only; ", defaultChainParams
->RequireStandard()));
483 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
)));
484 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
)));
486 strUsage
+= HelpMessageOpt("-bytespersigop", strprintf(_("Equivalent bytes per sigop in transactions for relay and mining (default: %u)"), DEFAULT_BYTES_PER_SIGOP
));
487 strUsage
+= HelpMessageOpt("-datacarrier", strprintf(_("Relay and mine data carrier transactions (default: %u)"), DEFAULT_ACCEPT_DATACARRIER
));
488 strUsage
+= HelpMessageOpt("-datacarriersize", strprintf(_("Maximum size of data in data carrier transactions we relay and mine (default: %u)"), MAX_OP_RETURN_RELAY
));
489 strUsage
+= HelpMessageOpt("-mempoolreplacement", strprintf(_("Enable transaction replacement in the memory pool (default: %u)"), DEFAULT_ENABLE_REPLACEMENT
));
490 strUsage
+= HelpMessageOpt("-minrelaytxfee=<amt>", strprintf(_("Fees (in %s/kB) smaller than this are considered zero fee for relaying, mining and transaction creation (default: %s)"),
491 CURRENCY_UNIT
, FormatMoney(DEFAULT_MIN_RELAY_TX_FEE
)));
492 strUsage
+= HelpMessageOpt("-whitelistrelay", strprintf(_("Accept relayed transactions received from whitelisted peers even when not relaying transactions (default: %d)"), DEFAULT_WHITELISTRELAY
));
493 strUsage
+= HelpMessageOpt("-whitelistforcerelay", strprintf(_("Force relay of transactions from whitelisted peers even if they violate local relay policy (default: %d)"), DEFAULT_WHITELISTFORCERELAY
));
495 strUsage
+= HelpMessageGroup(_("Block creation options:"));
496 strUsage
+= HelpMessageOpt("-blockmaxweight=<n>", strprintf(_("Set maximum BIP141 block weight (default: %d)"), DEFAULT_BLOCK_MAX_WEIGHT
));
497 strUsage
+= HelpMessageOpt("-blockmaxsize=<n>", strprintf(_("Set maximum block size in bytes (default: %d)"), DEFAULT_BLOCK_MAX_SIZE
));
498 strUsage
+= HelpMessageOpt("-blockmintxfee=<amt>", strprintf(_("Set lowest fee rate (in %s/kB) for transactions to be included in block creation. (default: %s)"), CURRENCY_UNIT
, FormatMoney(DEFAULT_BLOCK_MIN_TX_FEE
)));
500 strUsage
+= HelpMessageOpt("-blockversion=<n>", "Override block version to test forking scenarios");
502 strUsage
+= HelpMessageGroup(_("RPC server options:"));
503 strUsage
+= HelpMessageOpt("-server", _("Accept command line and JSON-RPC commands"));
504 strUsage
+= HelpMessageOpt("-rest", strprintf(_("Accept public REST requests (default: %u)"), DEFAULT_REST_ENABLE
));
505 strUsage
+= HelpMessageOpt("-rpcbind=<addr>[:port]", _("Bind to given address to listen for JSON-RPC connections. This option is ignored unless -rpcallowip is also passed. Port is optional and overrides -rpcport. Use [host]:port notation for IPv6. This option can be specified multiple times (default: 127.0.0.1 and ::1 i.e., localhost, or if -rpcallowip has been specified, 0.0.0.0 and :: i.e., all addresses)"));
506 strUsage
+= HelpMessageOpt("-rpccookiefile=<loc>", _("Location of the auth cookie (default: data dir)"));
507 strUsage
+= HelpMessageOpt("-rpcuser=<user>", _("Username for JSON-RPC connections"));
508 strUsage
+= HelpMessageOpt("-rpcpassword=<pw>", _("Password for JSON-RPC connections"));
509 strUsage
+= HelpMessageOpt("-rpcauth=<userpw>", _("Username and hashed password for JSON-RPC connections. The field <userpw> comes in the format: <USERNAME>:<SALT>$<HASH>. A canonical python script is included in share/rpcuser. The client then connects normally using the rpcuser=<USERNAME>/rpcpassword=<PASSWORD> pair of arguments. This option can be specified multiple times"));
510 strUsage
+= HelpMessageOpt("-rpcport=<port>", strprintf(_("Listen for JSON-RPC connections on <port> (default: %u or testnet: %u)"), defaultBaseParams
->RPCPort(), testnetBaseParams
->RPCPort()));
511 strUsage
+= HelpMessageOpt("-rpcallowip=<ip>", _("Allow JSON-RPC connections from specified source. Valid for <ip> are a single IP (e.g. 1.2.3.4), a network/netmask (e.g. 1.2.3.4/255.255.255.0) or a network/CIDR (e.g. 1.2.3.4/24). This option can be specified multiple times"));
512 strUsage
+= HelpMessageOpt("-rpcserialversion", strprintf(_("Sets the serialization of raw transaction or block hex returned in non-verbose mode, non-segwit(0) or segwit(1) (default: %d)"), DEFAULT_RPC_SERIALIZE_VERSION
));
513 strUsage
+= HelpMessageOpt("-rpcthreads=<n>", strprintf(_("Set the number of threads to service RPC calls (default: %d)"), DEFAULT_HTTP_THREADS
));
515 strUsage
+= HelpMessageOpt("-rpcworkqueue=<n>", strprintf("Set the depth of the work queue to service RPC calls (default: %d)", DEFAULT_HTTP_WORKQUEUE
));
516 strUsage
+= HelpMessageOpt("-rpcservertimeout=<n>", strprintf("Timeout during HTTP requests (default: %d)", DEFAULT_HTTP_SERVER_TIMEOUT
));
522 std::string
LicenseInfo()
524 const std::string URL_SOURCE_CODE
= "<https://github.com/bitcoin/bitcoin>";
525 const std::string URL_WEBSITE
= "<https://bitcoincore.org>";
527 return CopyrightHolders(strprintf(_("Copyright (C) %i-%i"), 2009, COPYRIGHT_YEAR
) + " ") + "\n" +
529 strprintf(_("Please contribute if you find %s useful. "
530 "Visit %s for further information about the software."),
531 PACKAGE_NAME
, URL_WEBSITE
) +
533 strprintf(_("The source code is available from %s."),
537 _("This is experimental software.") + "\n" +
538 strprintf(_("Distributed under the MIT software license, see the accompanying file %s or %s"), "COPYING", "<https://opensource.org/licenses/MIT>") + "\n" +
540 strprintf(_("This product includes software developed by the OpenSSL Project for use in the OpenSSL Toolkit %s and cryptographic software written by Eric Young and UPnP software written by Thomas Bernard."), "<https://www.openssl.org>") +
544 static void BlockNotifyCallback(bool initialSync
, const CBlockIndex
*pBlockIndex
)
546 if (initialSync
|| !pBlockIndex
)
549 std::string strCmd
= gArgs
.GetArg("-blocknotify", "");
551 boost::replace_all(strCmd
, "%s", pBlockIndex
->GetBlockHash().GetHex());
552 boost::thread
t(runCommand
, strCmd
); // thread runs free
555 static bool fHaveGenesis
= false;
556 static boost::mutex cs_GenesisWait
;
557 static CConditionVariable condvar_GenesisWait
;
559 static void BlockNotifyGenesisWait(bool, const CBlockIndex
*pBlockIndex
)
561 if (pBlockIndex
!= nullptr) {
563 boost::unique_lock
<boost::mutex
> lock_GenesisWait(cs_GenesisWait
);
566 condvar_GenesisWait
.notify_all();
573 assert(fImporting
== false);
578 assert(fImporting
== true);
584 // If we're using -prune with -reindex, then delete block files that will be ignored by the
585 // reindex. Since reindexing works by starting at block file 0 and looping until a blockfile
586 // is missing, do the same here to delete any later block files after a gap. Also delete all
587 // rev files since they'll be rewritten by the reindex anyway. This ensures that vinfoBlockFile
588 // is in sync with what's actually on disk by the time we start downloading, so that pruning
590 void CleanupBlockRevFiles()
592 std::map
<std::string
, fs::path
> mapBlockFiles
;
594 // Glob all blk?????.dat and rev?????.dat files from the blocks directory.
595 // Remove the rev files immediately and insert the blk file paths into an
596 // ordered map keyed by block file index.
597 LogPrintf("Removing unusable blk?????.dat and rev?????.dat files for -reindex with -prune\n");
598 fs::path blocksdir
= GetDataDir() / "blocks";
599 for (fs::directory_iterator
it(blocksdir
); it
!= fs::directory_iterator(); it
++) {
600 if (is_regular_file(*it
) &&
601 it
->path().filename().string().length() == 12 &&
602 it
->path().filename().string().substr(8,4) == ".dat")
604 if (it
->path().filename().string().substr(0,3) == "blk")
605 mapBlockFiles
[it
->path().filename().string().substr(3,5)] = it
->path();
606 else if (it
->path().filename().string().substr(0,3) == "rev")
611 // Remove all block files that aren't part of a contiguous set starting at
612 // zero by walking the ordered map (keys are block file indices) by
613 // keeping a separate counter. Once we hit a gap (or if 0 doesn't exist)
614 // start removing block files.
615 int nContigCounter
= 0;
616 for (const std::pair
<std::string
, fs::path
>& item
: mapBlockFiles
) {
617 if (atoi(item
.first
) == nContigCounter
) {
625 void ThreadImport(std::vector
<fs::path
> vImportFiles
)
627 const CChainParams
& chainparams
= Params();
628 RenameThread("bitcoin-loadblk");
637 CDiskBlockPos
pos(nFile
, 0);
638 if (!fs::exists(GetBlockPosFilename(pos
, "blk")))
639 break; // No block files left to reindex
640 FILE *file
= OpenBlockFile(pos
, true);
642 break; // This error is logged in OpenBlockFile
643 LogPrintf("Reindexing block file blk%05u.dat...\n", (unsigned int)nFile
);
644 LoadExternalBlockFile(chainparams
, file
, &pos
);
647 pblocktree
->WriteReindexing(false);
649 LogPrintf("Reindexing finished\n");
650 // To avoid ending up in a situation without genesis block, re-try initializing (no-op if reindexing worked):
651 LoadGenesisBlock(chainparams
);
654 // hardcoded $DATADIR/bootstrap.dat
655 fs::path pathBootstrap
= GetDataDir() / "bootstrap.dat";
656 if (fs::exists(pathBootstrap
)) {
657 FILE *file
= fsbridge::fopen(pathBootstrap
, "rb");
659 fs::path pathBootstrapOld
= GetDataDir() / "bootstrap.dat.old";
660 LogPrintf("Importing bootstrap.dat...\n");
661 LoadExternalBlockFile(chainparams
, file
);
662 RenameOver(pathBootstrap
, pathBootstrapOld
);
664 LogPrintf("Warning: Could not open bootstrap file %s\n", pathBootstrap
.string());
669 for (const fs::path
& path
: vImportFiles
) {
670 FILE *file
= fsbridge::fopen(path
, "rb");
672 LogPrintf("Importing blocks file %s...\n", path
.string());
673 LoadExternalBlockFile(chainparams
, file
);
675 LogPrintf("Warning: Could not open blocks file %s\n", path
.string());
679 // scan for better chains in the block chain database, that are not yet connected in the active best chain
680 CValidationState state
;
681 if (!ActivateBestChain(state
, chainparams
)) {
682 LogPrintf("Failed to connect best block");
686 if (gArgs
.GetBoolArg("-stopafterblockimport", DEFAULT_STOPAFTERBLOCKIMPORT
)) {
687 LogPrintf("Stopping after block import\n");
690 } // End scope of CImportingNow
691 if (gArgs
.GetArg("-persistmempool", DEFAULT_PERSIST_MEMPOOL
)) {
693 fDumpMempoolLater
= !fRequestShutdown
;
698 * Ensure that Bitcoin is running in a usable environment with all
699 * necessary library support.
701 bool InitSanityCheck(void)
703 if(!ECC_InitSanityCheck()) {
704 InitError("Elliptic curve cryptography sanity check failure. Aborting.");
708 if (!glibc_sanity_test() || !glibcxx_sanity_test())
711 if (!Random_SanityCheck()) {
712 InitError("OS cryptographic RNG sanity check failure. Aborting.");
719 bool AppInitServers(boost::thread_group
& threadGroup
)
721 RPCServer::OnStarted(&OnRPCStarted
);
722 RPCServer::OnStopped(&OnRPCStopped
);
723 RPCServer::OnPreCommand(&OnRPCPreCommand
);
724 if (!InitHTTPServer())
730 if (gArgs
.GetBoolArg("-rest", DEFAULT_REST_ENABLE
) && !StartREST())
732 if (!StartHTTPServer())
737 // Parameter interaction based on rules
738 void InitParameterInteraction()
740 // when specifying an explicit binding address, you want to listen on it
741 // even when -connect or -proxy is specified
742 if (gArgs
.IsArgSet("-bind")) {
743 if (gArgs
.SoftSetBoolArg("-listen", true))
744 LogPrintf("%s: parameter interaction: -bind set -> setting -listen=1\n", __func__
);
746 if (gArgs
.IsArgSet("-whitebind")) {
747 if (gArgs
.SoftSetBoolArg("-listen", true))
748 LogPrintf("%s: parameter interaction: -whitebind set -> setting -listen=1\n", __func__
);
751 if (gArgs
.IsArgSet("-connect")) {
752 // when only connecting to trusted nodes, do not seed via DNS, or listen by default
753 if (gArgs
.SoftSetBoolArg("-dnsseed", false))
754 LogPrintf("%s: parameter interaction: -connect set -> setting -dnsseed=0\n", __func__
);
755 if (gArgs
.SoftSetBoolArg("-listen", false))
756 LogPrintf("%s: parameter interaction: -connect set -> setting -listen=0\n", __func__
);
759 if (gArgs
.IsArgSet("-proxy")) {
760 // to protect privacy, do not listen by default if a default proxy server is specified
761 if (gArgs
.SoftSetBoolArg("-listen", false))
762 LogPrintf("%s: parameter interaction: -proxy set -> setting -listen=0\n", __func__
);
763 // to protect privacy, do not use UPNP when a proxy is set. The user may still specify -listen=1
764 // to listen locally, so don't rely on this happening through -listen below.
765 if (gArgs
.SoftSetBoolArg("-upnp", false))
766 LogPrintf("%s: parameter interaction: -proxy set -> setting -upnp=0\n", __func__
);
767 // to protect privacy, do not discover addresses by default
768 if (gArgs
.SoftSetBoolArg("-discover", false))
769 LogPrintf("%s: parameter interaction: -proxy set -> setting -discover=0\n", __func__
);
772 if (!gArgs
.GetBoolArg("-listen", DEFAULT_LISTEN
)) {
773 // do not map ports or try to retrieve public IP when not listening (pointless)
774 if (gArgs
.SoftSetBoolArg("-upnp", false))
775 LogPrintf("%s: parameter interaction: -listen=0 -> setting -upnp=0\n", __func__
);
776 if (gArgs
.SoftSetBoolArg("-discover", false))
777 LogPrintf("%s: parameter interaction: -listen=0 -> setting -discover=0\n", __func__
);
778 if (gArgs
.SoftSetBoolArg("-listenonion", false))
779 LogPrintf("%s: parameter interaction: -listen=0 -> setting -listenonion=0\n", __func__
);
782 if (gArgs
.IsArgSet("-externalip")) {
783 // if an explicit public IP is specified, do not try to find others
784 if (gArgs
.SoftSetBoolArg("-discover", false))
785 LogPrintf("%s: parameter interaction: -externalip set -> setting -discover=0\n", __func__
);
788 // disable whitelistrelay in blocksonly mode
789 if (gArgs
.GetBoolArg("-blocksonly", DEFAULT_BLOCKSONLY
)) {
790 if (gArgs
.SoftSetBoolArg("-whitelistrelay", false))
791 LogPrintf("%s: parameter interaction: -blocksonly=1 -> setting -whitelistrelay=0\n", __func__
);
794 // Forcing relay from whitelisted hosts implies we will accept relays from them in the first place.
795 if (gArgs
.GetBoolArg("-whitelistforcerelay", DEFAULT_WHITELISTFORCERELAY
)) {
796 if (gArgs
.SoftSetBoolArg("-whitelistrelay", true))
797 LogPrintf("%s: parameter interaction: -whitelistforcerelay=1 -> setting -whitelistrelay=1\n", __func__
);
801 static std::string
ResolveErrMsg(const char * const optname
, const std::string
& strBind
)
803 return strprintf(_("Cannot resolve -%s address: '%s'"), optname
, strBind
);
808 fPrintToConsole
= gArgs
.GetBoolArg("-printtoconsole", false);
809 fLogTimestamps
= gArgs
.GetBoolArg("-logtimestamps", DEFAULT_LOGTIMESTAMPS
);
810 fLogTimeMicros
= gArgs
.GetBoolArg("-logtimemicros", DEFAULT_LOGTIMEMICROS
);
811 fLogIPs
= gArgs
.GetBoolArg("-logips", DEFAULT_LOGIPS
);
813 LogPrintf("\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n");
814 LogPrintf("Bitcoin version %s\n", FormatFullVersion());
817 namespace { // Variables internal to initialization process only
819 ServiceFlags nRelevantServices
= NODE_NETWORK
;
821 int nUserMaxConnections
;
823 ServiceFlags nLocalServices
= NODE_NETWORK
;
827 [[noreturn
]] static void new_handler_terminate()
829 // Rather than throwing std::bad-alloc if allocation fails, terminate
830 // immediately to (try to) avoid chain corruption.
831 // Since LogPrintf may itself allocate memory, set the handler directly
832 // to terminate first.
833 std::set_new_handler(std::terminate
);
834 LogPrintf("Error: Out of memory. Terminating.\n");
836 // The log was successful, terminate now.
840 bool AppInitBasicSetup()
842 // ********************************************************* Step 1: setup
844 // Turn off Microsoft heap dump noise
845 _CrtSetReportMode(_CRT_WARN
, _CRTDBG_MODE_FILE
);
846 _CrtSetReportFile(_CRT_WARN
, CreateFileA("NUL", GENERIC_WRITE
, 0, nullptr, OPEN_EXISTING
, 0, 0));
847 // Disable confusing "helpful" text message on abort, Ctrl-C
848 _set_abort_behavior(0, _WRITE_ABORT_MSG
| _CALL_REPORTFAULT
);
851 // Enable Data Execution Prevention (DEP)
852 // Minimum supported OS versions: WinXP SP3, WinVista >= SP1, Win Server 2008
853 // A failure is non-critical and needs no further attention!
854 #ifndef PROCESS_DEP_ENABLE
855 // We define this here, because GCCs winbase.h limits this to _WIN32_WINNT >= 0x0601 (Windows 7),
856 // which is not correct. Can be removed, when GCCs winbase.h is fixed!
857 #define PROCESS_DEP_ENABLE 0x00000001
859 typedef BOOL (WINAPI
*PSETPROCDEPPOL
)(DWORD
);
860 PSETPROCDEPPOL setProcDEPPol
= (PSETPROCDEPPOL
)GetProcAddress(GetModuleHandleA("Kernel32.dll"), "SetProcessDEPPolicy");
861 if (setProcDEPPol
!= nullptr) setProcDEPPol(PROCESS_DEP_ENABLE
);
864 if (!SetupNetworking())
865 return InitError("Initializing networking failed");
868 if (!gArgs
.GetBoolArg("-sysperms", false)) {
872 // Clean shutdown on SIGTERM
873 registerSignalHandler(SIGTERM
, HandleSIGTERM
);
874 registerSignalHandler(SIGINT
, HandleSIGTERM
);
876 // Reopen debug.log on SIGHUP
877 registerSignalHandler(SIGHUP
, HandleSIGHUP
);
879 // Ignore SIGPIPE, otherwise it will bring the daemon down if the client closes unexpectedly
880 signal(SIGPIPE
, SIG_IGN
);
883 std::set_new_handler(new_handler_terminate
);
888 bool AppInitParameterInteraction()
890 const CChainParams
& chainparams
= Params();
891 // ********************************************************* Step 2: parameter interactions
893 // also see: InitParameterInteraction()
895 // if using block pruning, then disallow txindex
896 if (gArgs
.GetArg("-prune", 0)) {
897 if (gArgs
.GetBoolArg("-txindex", DEFAULT_TXINDEX
))
898 return InitError(_("Prune mode is incompatible with -txindex."));
901 // -bind and -whitebind can't be set when not listening
902 size_t nUserBind
= gArgs
.GetArgs("-bind").size() + gArgs
.GetArgs("-whitebind").size();
903 if (nUserBind
!= 0 && !gArgs
.GetBoolArg("-listen", DEFAULT_LISTEN
)) {
904 return InitError("Cannot set -bind or -whitebind together with -listen=0");
907 // Make sure enough file descriptors are available
908 int nBind
= std::max(nUserBind
, size_t(1));
909 nUserMaxConnections
= gArgs
.GetArg("-maxconnections", DEFAULT_MAX_PEER_CONNECTIONS
);
910 nMaxConnections
= std::max(nUserMaxConnections
, 0);
912 // Trim requested connection counts, to fit into system limitations
913 nMaxConnections
= std::max(std::min(nMaxConnections
, (int)(FD_SETSIZE
- nBind
- MIN_CORE_FILEDESCRIPTORS
- MAX_ADDNODE_CONNECTIONS
)), 0);
914 nFD
= RaiseFileDescriptorLimit(nMaxConnections
+ MIN_CORE_FILEDESCRIPTORS
+ MAX_ADDNODE_CONNECTIONS
);
915 if (nFD
< MIN_CORE_FILEDESCRIPTORS
)
916 return InitError(_("Not enough file descriptors available."));
917 nMaxConnections
= std::min(nFD
- MIN_CORE_FILEDESCRIPTORS
- MAX_ADDNODE_CONNECTIONS
, nMaxConnections
);
919 if (nMaxConnections
< nUserMaxConnections
)
920 InitWarning(strprintf(_("Reducing -maxconnections from %d to %d, because of system limitations."), nUserMaxConnections
, nMaxConnections
));
922 // ********************************************************* Step 3: parameter-to-internal-flags
923 if (gArgs
.IsArgSet("-debug")) {
924 // Special-case: if -debug=0/-nodebug is set, turn off debugging messages
925 const std::vector
<std::string
> categories
= gArgs
.GetArgs("-debug");
927 if (find(categories
.begin(), categories
.end(), std::string("0")) == categories
.end()) {
928 for (const auto& cat
: categories
) {
930 if (!GetLogCategory(&flag
, &cat
)) {
931 InitWarning(strprintf(_("Unsupported logging category %s=%s."), "-debug", cat
));
934 logCategories
|= flag
;
939 // Now remove the logging categories which were explicitly excluded
940 for (const std::string
& cat
: gArgs
.GetArgs("-debugexclude")) {
942 if (!GetLogCategory(&flag
, &cat
)) {
943 InitWarning(strprintf(_("Unsupported logging category %s=%s."), "-debugexclude", cat
));
946 logCategories
&= ~flag
;
949 // Check for -debugnet
950 if (gArgs
.GetBoolArg("-debugnet", false))
951 InitWarning(_("Unsupported argument -debugnet ignored, use -debug=net."));
952 // Check for -socks - as this is a privacy risk to continue, exit here
953 if (gArgs
.IsArgSet("-socks"))
954 return InitError(_("Unsupported argument -socks found. Setting SOCKS version isn't possible anymore, only SOCKS5 proxies are supported."));
955 // Check for -tor - as this is a privacy risk to continue, exit here
956 if (gArgs
.GetBoolArg("-tor", false))
957 return InitError(_("Unsupported argument -tor found, use -onion."));
959 if (gArgs
.GetBoolArg("-benchmark", false))
960 InitWarning(_("Unsupported argument -benchmark ignored, use -debug=bench."));
962 if (gArgs
.GetBoolArg("-whitelistalwaysrelay", false))
963 InitWarning(_("Unsupported argument -whitelistalwaysrelay ignored, use -whitelistrelay and/or -whitelistforcerelay."));
965 if (gArgs
.IsArgSet("-blockminsize"))
966 InitWarning("Unsupported argument -blockminsize ignored.");
968 // Checkmempool and checkblockindex default to true in regtest mode
969 int ratio
= std::min
<int>(std::max
<int>(gArgs
.GetArg("-checkmempool", chainparams
.DefaultConsistencyChecks() ? 1 : 0), 0), 1000000);
971 mempool
.setSanityCheck(1.0 / ratio
);
973 fCheckBlockIndex
= gArgs
.GetBoolArg("-checkblockindex", chainparams
.DefaultConsistencyChecks());
974 fCheckpointsEnabled
= gArgs
.GetBoolArg("-checkpoints", DEFAULT_CHECKPOINTS_ENABLED
);
976 hashAssumeValid
= uint256S(gArgs
.GetArg("-assumevalid", chainparams
.GetConsensus().defaultAssumeValid
.GetHex()));
977 if (!hashAssumeValid
.IsNull())
978 LogPrintf("Assuming ancestors of block %s have valid signatures.\n", hashAssumeValid
.GetHex());
980 LogPrintf("Validating signatures for all blocks.\n");
983 int64_t nMempoolSizeMax
= gArgs
.GetArg("-maxmempool", DEFAULT_MAX_MEMPOOL_SIZE
) * 1000000;
984 int64_t nMempoolSizeMin
= gArgs
.GetArg("-limitdescendantsize", DEFAULT_DESCENDANT_SIZE_LIMIT
) * 1000 * 40;
985 if (nMempoolSizeMax
< 0 || nMempoolSizeMax
< nMempoolSizeMin
)
986 return InitError(strprintf(_("-maxmempool must be at least %d MB"), std::ceil(nMempoolSizeMin
/ 1000000.0)));
987 // incremental relay fee sets the minimum feerate increase necessary for BIP 125 replacement in the mempool
988 // and the amount the mempool min fee increases above the feerate of txs evicted due to mempool limiting.
989 if (gArgs
.IsArgSet("-incrementalrelayfee"))
992 if (!ParseMoney(gArgs
.GetArg("-incrementalrelayfee", ""), n
))
993 return InitError(AmountErrMsg("incrementalrelayfee", gArgs
.GetArg("-incrementalrelayfee", "")));
994 incrementalRelayFee
= CFeeRate(n
);
997 // -par=0 means autodetect, but nScriptCheckThreads==0 means no concurrency
998 nScriptCheckThreads
= gArgs
.GetArg("-par", DEFAULT_SCRIPTCHECK_THREADS
);
999 if (nScriptCheckThreads
<= 0)
1000 nScriptCheckThreads
+= GetNumCores();
1001 if (nScriptCheckThreads
<= 1)
1002 nScriptCheckThreads
= 0;
1003 else if (nScriptCheckThreads
> MAX_SCRIPTCHECK_THREADS
)
1004 nScriptCheckThreads
= MAX_SCRIPTCHECK_THREADS
;
1006 // block pruning; get the amount of disk space (in MiB) to allot for block & undo files
1007 int64_t nPruneArg
= gArgs
.GetArg("-prune", 0);
1008 if (nPruneArg
< 0) {
1009 return InitError(_("Prune cannot be configured with a negative value."));
1011 nPruneTarget
= (uint64_t) nPruneArg
* 1024 * 1024;
1012 if (nPruneArg
== 1) { // manual pruning: -prune=1
1013 LogPrintf("Block pruning enabled. Use RPC call pruneblockchain(height) to manually prune block and undo files.\n");
1014 nPruneTarget
= std::numeric_limits
<uint64_t>::max();
1016 } else if (nPruneTarget
) {
1017 if (nPruneTarget
< MIN_DISK_SPACE_FOR_BLOCK_FILES
) {
1018 return InitError(strprintf(_("Prune configured below the minimum of %d MiB. Please use a higher number."), MIN_DISK_SPACE_FOR_BLOCK_FILES
/ 1024 / 1024));
1020 LogPrintf("Prune configured to target %uMiB on disk for block and undo files.\n", nPruneTarget
/ 1024 / 1024);
1024 RegisterAllCoreRPCCommands(tableRPC
);
1025 #ifdef ENABLE_WALLET
1026 RegisterWalletRPCCommands(tableRPC
);
1029 nConnectTimeout
= gArgs
.GetArg("-timeout", DEFAULT_CONNECT_TIMEOUT
);
1030 if (nConnectTimeout
<= 0)
1031 nConnectTimeout
= DEFAULT_CONNECT_TIMEOUT
;
1033 if (gArgs
.IsArgSet("-minrelaytxfee")) {
1035 if (!ParseMoney(gArgs
.GetArg("-minrelaytxfee", ""), n
)) {
1036 return InitError(AmountErrMsg("minrelaytxfee", gArgs
.GetArg("-minrelaytxfee", "")));
1038 // High fee check is done afterward in CWallet::ParameterInteraction()
1039 ::minRelayTxFee
= CFeeRate(n
);
1040 } else if (incrementalRelayFee
> ::minRelayTxFee
) {
1041 // Allow only setting incrementalRelayFee to control both
1042 ::minRelayTxFee
= incrementalRelayFee
;
1043 LogPrintf("Increasing minrelaytxfee to %s to match incrementalrelayfee\n",::minRelayTxFee
.ToString());
1046 // Sanity check argument for min fee for including tx in block
1047 // TODO: Harmonize which arguments need sanity checking and where that happens
1048 if (gArgs
.IsArgSet("-blockmintxfee"))
1051 if (!ParseMoney(gArgs
.GetArg("-blockmintxfee", ""), n
))
1052 return InitError(AmountErrMsg("blockmintxfee", gArgs
.GetArg("-blockmintxfee", "")));
1055 // Feerate used to define dust. Shouldn't be changed lightly as old
1056 // implementations may inadvertently create non-standard transactions
1057 if (gArgs
.IsArgSet("-dustrelayfee"))
1060 if (!ParseMoney(gArgs
.GetArg("-dustrelayfee", ""), n
) || 0 == n
)
1061 return InitError(AmountErrMsg("dustrelayfee", gArgs
.GetArg("-dustrelayfee", "")));
1062 dustRelayFee
= CFeeRate(n
);
1065 fRequireStandard
= !gArgs
.GetBoolArg("-acceptnonstdtxn", !chainparams
.RequireStandard());
1066 if (chainparams
.RequireStandard() && !fRequireStandard
)
1067 return InitError(strprintf("acceptnonstdtxn is not currently supported for %s chain", chainparams
.NetworkIDString()));
1068 nBytesPerSigOp
= gArgs
.GetArg("-bytespersigop", nBytesPerSigOp
);
1070 #ifdef ENABLE_WALLET
1071 if (!CWallet::ParameterInteraction())
1075 fIsBareMultisigStd
= gArgs
.GetBoolArg("-permitbaremultisig", DEFAULT_PERMIT_BAREMULTISIG
);
1076 fAcceptDatacarrier
= gArgs
.GetBoolArg("-datacarrier", DEFAULT_ACCEPT_DATACARRIER
);
1077 nMaxDatacarrierBytes
= gArgs
.GetArg("-datacarriersize", nMaxDatacarrierBytes
);
1079 // Option to startup with mocktime set (used for regression testing):
1080 SetMockTime(gArgs
.GetArg("-mocktime", 0)); // SetMockTime(0) is a no-op
1082 if (gArgs
.GetBoolArg("-peerbloomfilters", DEFAULT_PEERBLOOMFILTERS
))
1083 nLocalServices
= ServiceFlags(nLocalServices
| NODE_BLOOM
);
1085 if (gArgs
.GetArg("-rpcserialversion", DEFAULT_RPC_SERIALIZE_VERSION
) < 0)
1086 return InitError("rpcserialversion must be non-negative.");
1088 if (gArgs
.GetArg("-rpcserialversion", DEFAULT_RPC_SERIALIZE_VERSION
) > 1)
1089 return InitError("unknown rpcserialversion requested.");
1091 nMaxTipAge
= gArgs
.GetArg("-maxtipage", DEFAULT_MAX_TIP_AGE
);
1093 fEnableReplacement
= gArgs
.GetBoolArg("-mempoolreplacement", DEFAULT_ENABLE_REPLACEMENT
);
1094 if ((!fEnableReplacement
) && gArgs
.IsArgSet("-mempoolreplacement")) {
1095 // Minimal effort at forwards compatibility
1096 std::string strReplacementModeList
= gArgs
.GetArg("-mempoolreplacement", ""); // default is impossible
1097 std::vector
<std::string
> vstrReplacementModes
;
1098 boost::split(vstrReplacementModes
, strReplacementModeList
, boost::is_any_of(","));
1099 fEnableReplacement
= (std::find(vstrReplacementModes
.begin(), vstrReplacementModes
.end(), "fee") != vstrReplacementModes
.end());
1102 if (gArgs
.IsArgSet("-vbparams")) {
1103 // Allow overriding version bits parameters for testing
1104 if (!chainparams
.MineBlocksOnDemand()) {
1105 return InitError("Version bits parameters may only be overridden on regtest.");
1107 for (const std::string
& strDeployment
: gArgs
.GetArgs("-vbparams")) {
1108 std::vector
<std::string
> vDeploymentParams
;
1109 boost::split(vDeploymentParams
, strDeployment
, boost::is_any_of(":"));
1110 if (vDeploymentParams
.size() != 3) {
1111 return InitError("Version bits parameters malformed, expecting deployment:start:end");
1113 int64_t nStartTime
, nTimeout
;
1114 if (!ParseInt64(vDeploymentParams
[1], &nStartTime
)) {
1115 return InitError(strprintf("Invalid nStartTime (%s)", vDeploymentParams
[1]));
1117 if (!ParseInt64(vDeploymentParams
[2], &nTimeout
)) {
1118 return InitError(strprintf("Invalid nTimeout (%s)", vDeploymentParams
[2]));
1121 for (int j
=0; j
<(int)Consensus::MAX_VERSION_BITS_DEPLOYMENTS
; ++j
)
1123 if (vDeploymentParams
[0].compare(VersionBitsDeploymentInfo
[j
].name
) == 0) {
1124 UpdateVersionBitsParameters(Consensus::DeploymentPos(j
), nStartTime
, nTimeout
);
1126 LogPrintf("Setting version bits activation parameters for %s to start=%ld, timeout=%ld\n", vDeploymentParams
[0], nStartTime
, nTimeout
);
1131 return InitError(strprintf("Invalid deployment (%s)", vDeploymentParams
[0]));
1138 static bool LockDataDirectory(bool probeOnly
)
1140 std::string strDataDir
= GetDataDir().string();
1142 // Make sure only a single Bitcoin process is using the data directory.
1143 fs::path pathLockFile
= GetDataDir() / ".lock";
1144 FILE* file
= fsbridge::fopen(pathLockFile
, "a"); // empty lock file; created if it doesn't exist.
1145 if (file
) fclose(file
);
1148 static boost::interprocess::file_lock
lock(pathLockFile
.string().c_str());
1149 if (!lock
.try_lock()) {
1150 return InitError(strprintf(_("Cannot obtain a lock on data directory %s. %s is probably already running."), strDataDir
, _(PACKAGE_NAME
)));
1155 } catch(const boost::interprocess::interprocess_exception
& e
) {
1156 return InitError(strprintf(_("Cannot obtain a lock on data directory %s. %s is probably already running.") + " %s.", strDataDir
, _(PACKAGE_NAME
), e
.what()));
1161 bool AppInitSanityChecks()
1163 // ********************************************************* Step 4: sanity checks
1165 // Initialize elliptic curve code
1166 std::string sha256_algo
= SHA256AutoDetect();
1167 LogPrintf("Using the '%s' SHA256 implementation\n", sha256_algo
);
1170 globalVerifyHandle
.reset(new ECCVerifyHandle());
1173 if (!InitSanityCheck())
1174 return InitError(strprintf(_("Initialization sanity check failed. %s is shutting down."), _(PACKAGE_NAME
)));
1176 // Probe the data directory lock to give an early error message, if possible
1177 // We cannot hold the data directory lock here, as the forking for daemon() hasn't yet happened,
1178 // and a fork will cause weird behavior to it.
1179 return LockDataDirectory(true);
1182 bool AppInitLockDataDirectory()
1184 // After daemonization get the data directory lock again and hold on to it until exit
1185 // This creates a slight window for a race condition to happen, however this condition is harmless: it
1186 // will at most make us exit without printing a message to console.
1187 if (!LockDataDirectory(false)) {
1188 // Detailed error printed inside LockDataDirectory
1194 bool AppInitMain(boost::thread_group
& threadGroup
, CScheduler
& scheduler
)
1196 const CChainParams
& chainparams
= Params();
1197 // ********************************************************* Step 4a: application initialization
1199 CreatePidFile(GetPidFile(), getpid());
1201 if (gArgs
.GetBoolArg("-shrinkdebugfile", logCategories
== BCLog::NONE
)) {
1202 // Do this first since it both loads a bunch of debug.log into memory,
1203 // and because this needs to happen before any other debug.log printing
1207 if (fPrintToDebugLog
)
1210 if (!fLogTimestamps
)
1211 LogPrintf("Startup time: %s\n", DateTimeStrFormat("%Y-%m-%d %H:%M:%S", GetTime()));
1212 LogPrintf("Default data directory %s\n", GetDefaultDataDir().string());
1213 LogPrintf("Using data directory %s\n", GetDataDir().string());
1214 LogPrintf("Using config file %s\n", GetConfigFile(gArgs
.GetArg("-conf", BITCOIN_CONF_FILENAME
)).string());
1215 LogPrintf("Using at most %i automatic connections (%i file descriptors available)\n", nMaxConnections
, nFD
);
1217 InitSignatureCache();
1218 InitScriptExecutionCache();
1220 LogPrintf("Using %u threads for script verification\n", nScriptCheckThreads
);
1221 if (nScriptCheckThreads
) {
1222 for (int i
=0; i
<nScriptCheckThreads
-1; i
++)
1223 threadGroup
.create_thread(&ThreadScriptCheck
);
1226 // Start the lightweight task scheduler thread
1227 CScheduler::Function serviceLoop
= boost::bind(&CScheduler::serviceQueue
, &scheduler
);
1228 threadGroup
.create_thread(boost::bind(&TraceThread
<CScheduler::Function
>, "scheduler", serviceLoop
));
1230 GetMainSignals().RegisterBackgroundSignalScheduler(scheduler
);
1232 /* Start the RPC server already. It will be started in "warmup" mode
1233 * and not really process calls already (but it will signify connections
1234 * that the server is there and will be ready later). Warmup mode will
1235 * be disabled when initialisation is finished.
1237 if (gArgs
.GetBoolArg("-server", false))
1239 uiInterface
.InitMessage
.connect(SetRPCWarmupStatus
);
1240 if (!AppInitServers(threadGroup
))
1241 return InitError(_("Unable to start HTTP server. See debug log for details."));
1246 // ********************************************************* Step 5: verify wallet database integrity
1247 #ifdef ENABLE_WALLET
1248 if (!CWallet::Verify())
1251 // ********************************************************* Step 6: network initialization
1252 // Note that we absolutely cannot open any actual connections
1253 // until the very end ("start node") as the UTXO/block state
1254 // is not yet setup and may end up being set up twice if we
1255 // need to reindex later.
1258 g_connman
= std::unique_ptr
<CConnman
>(new CConnman(GetRand(std::numeric_limits
<uint64_t>::max()), GetRand(std::numeric_limits
<uint64_t>::max())));
1259 CConnman
& connman
= *g_connman
;
1261 peerLogic
.reset(new PeerLogicValidation(&connman
));
1262 RegisterValidationInterface(peerLogic
.get());
1263 RegisterNodeSignals(GetNodeSignals());
1265 // sanitize comments per BIP-0014, format user agent and check total size
1266 std::vector
<std::string
> uacomments
;
1267 for (const std::string
& cmt
: gArgs
.GetArgs("-uacomment")) {
1268 if (cmt
!= SanitizeString(cmt
, SAFE_CHARS_UA_COMMENT
))
1269 return InitError(strprintf(_("User Agent comment (%s) contains unsafe characters."), cmt
));
1270 uacomments
.push_back(cmt
);
1272 strSubVersion
= FormatSubVersion(CLIENT_NAME
, CLIENT_VERSION
, uacomments
);
1273 if (strSubVersion
.size() > MAX_SUBVERSION_LENGTH
) {
1274 return InitError(strprintf(_("Total length of network version string (%i) exceeds maximum length (%i). Reduce the number or size of uacomments."),
1275 strSubVersion
.size(), MAX_SUBVERSION_LENGTH
));
1278 if (gArgs
.IsArgSet("-onlynet")) {
1279 std::set
<enum Network
> nets
;
1280 for (const std::string
& snet
: gArgs
.GetArgs("-onlynet")) {
1281 enum Network net
= ParseNetwork(snet
);
1282 if (net
== NET_UNROUTABLE
)
1283 return InitError(strprintf(_("Unknown network specified in -onlynet: '%s'"), snet
));
1286 for (int n
= 0; n
< NET_MAX
; n
++) {
1287 enum Network net
= (enum Network
)n
;
1288 if (!nets
.count(net
))
1293 // Check for host lookup allowed before parsing any network related parameters
1294 fNameLookup
= gArgs
.GetBoolArg("-dns", DEFAULT_NAME_LOOKUP
);
1296 bool proxyRandomize
= gArgs
.GetBoolArg("-proxyrandomize", DEFAULT_PROXYRANDOMIZE
);
1297 // -proxy sets a proxy for all outgoing network traffic
1298 // -noproxy (or -proxy=0) as well as the empty string can be used to not set a proxy, this is the default
1299 std::string proxyArg
= gArgs
.GetArg("-proxy", "");
1300 SetLimited(NET_TOR
);
1301 if (proxyArg
!= "" && proxyArg
!= "0") {
1303 if (!Lookup(proxyArg
.c_str(), proxyAddr
, 9050, fNameLookup
)) {
1304 return InitError(strprintf(_("Invalid -proxy address or hostname: '%s'"), proxyArg
));
1307 proxyType addrProxy
= proxyType(proxyAddr
, proxyRandomize
);
1308 if (!addrProxy
.IsValid())
1309 return InitError(strprintf(_("Invalid -proxy address or hostname: '%s'"), proxyArg
));
1311 SetProxy(NET_IPV4
, addrProxy
);
1312 SetProxy(NET_IPV6
, addrProxy
);
1313 SetProxy(NET_TOR
, addrProxy
);
1314 SetNameProxy(addrProxy
);
1315 SetLimited(NET_TOR
, false); // by default, -proxy sets onion as reachable, unless -noonion later
1318 // -onion can be used to set only a proxy for .onion, or override normal proxy for .onion addresses
1319 // -noonion (or -onion=0) disables connecting to .onion entirely
1320 // An empty string is used to not override the onion proxy (in which case it defaults to -proxy set above, or none)
1321 std::string onionArg
= gArgs
.GetArg("-onion", "");
1322 if (onionArg
!= "") {
1323 if (onionArg
== "0") { // Handle -noonion/-onion=0
1324 SetLimited(NET_TOR
); // set onions as unreachable
1326 CService onionProxy
;
1327 if (!Lookup(onionArg
.c_str(), onionProxy
, 9050, fNameLookup
)) {
1328 return InitError(strprintf(_("Invalid -onion address or hostname: '%s'"), onionArg
));
1330 proxyType addrOnion
= proxyType(onionProxy
, proxyRandomize
);
1331 if (!addrOnion
.IsValid())
1332 return InitError(strprintf(_("Invalid -onion address or hostname: '%s'"), onionArg
));
1333 SetProxy(NET_TOR
, addrOnion
);
1334 SetLimited(NET_TOR
, false);
1338 // see Step 2: parameter interactions for more information about these
1339 fListen
= gArgs
.GetBoolArg("-listen", DEFAULT_LISTEN
);
1340 fDiscover
= gArgs
.GetBoolArg("-discover", true);
1341 fRelayTxes
= !gArgs
.GetBoolArg("-blocksonly", DEFAULT_BLOCKSONLY
);
1343 for (const std::string
& strAddr
: gArgs
.GetArgs("-externalip")) {
1345 if (Lookup(strAddr
.c_str(), addrLocal
, GetListenPort(), fNameLookup
) && addrLocal
.IsValid())
1346 AddLocal(addrLocal
, LOCAL_MANUAL
);
1348 return InitError(ResolveErrMsg("externalip", strAddr
));
1352 pzmqNotificationInterface
= CZMQNotificationInterface::Create();
1354 if (pzmqNotificationInterface
) {
1355 RegisterValidationInterface(pzmqNotificationInterface
);
1358 uint64_t nMaxOutboundLimit
= 0; //unlimited unless -maxuploadtarget is set
1359 uint64_t nMaxOutboundTimeframe
= MAX_UPLOAD_TIMEFRAME
;
1361 if (gArgs
.IsArgSet("-maxuploadtarget")) {
1362 nMaxOutboundLimit
= gArgs
.GetArg("-maxuploadtarget", DEFAULT_MAX_UPLOAD_TARGET
)*1024*1024;
1365 // ********************************************************* Step 7: load block chain
1367 fReindex
= gArgs
.GetBoolArg("-reindex", false);
1368 bool fReindexChainState
= gArgs
.GetBoolArg("-reindex-chainstate", false);
1370 // cache size calculations
1371 int64_t nTotalCache
= (gArgs
.GetArg("-dbcache", nDefaultDbCache
) << 20);
1372 nTotalCache
= std::max(nTotalCache
, nMinDbCache
<< 20); // total cache cannot be less than nMinDbCache
1373 nTotalCache
= std::min(nTotalCache
, nMaxDbCache
<< 20); // total cache cannot be greater than nMaxDbcache
1374 int64_t nBlockTreeDBCache
= nTotalCache
/ 8;
1375 nBlockTreeDBCache
= std::min(nBlockTreeDBCache
, (gArgs
.GetBoolArg("-txindex", DEFAULT_TXINDEX
) ? nMaxBlockDBAndTxIndexCache
: nMaxBlockDBCache
) << 20);
1376 nTotalCache
-= nBlockTreeDBCache
;
1377 int64_t nCoinDBCache
= std::min(nTotalCache
/ 2, (nTotalCache
/ 4) + (1 << 23)); // use 25%-50% of the remainder for disk cache
1378 nCoinDBCache
= std::min(nCoinDBCache
, nMaxCoinsDBCache
<< 20); // cap total coins db cache
1379 nTotalCache
-= nCoinDBCache
;
1380 nCoinCacheUsage
= nTotalCache
; // the rest goes to in-memory cache
1381 int64_t nMempoolSizeMax
= gArgs
.GetArg("-maxmempool", DEFAULT_MAX_MEMPOOL_SIZE
) * 1000000;
1382 LogPrintf("Cache configuration:\n");
1383 LogPrintf("* Using %.1fMiB for block index database\n", nBlockTreeDBCache
* (1.0 / 1024 / 1024));
1384 LogPrintf("* Using %.1fMiB for chain state database\n", nCoinDBCache
* (1.0 / 1024 / 1024));
1385 LogPrintf("* Using %.1fMiB for in-memory UTXO set (plus up to %.1fMiB of unused mempool space)\n", nCoinCacheUsage
* (1.0 / 1024 / 1024), nMempoolSizeMax
* (1.0 / 1024 / 1024));
1387 bool fLoaded
= false;
1388 while (!fLoaded
&& !fRequestShutdown
) {
1389 bool fReset
= fReindex
;
1390 std::string strLoadError
;
1392 uiInterface
.InitMessage(_("Loading block index..."));
1394 nStart
= GetTimeMillis();
1399 delete pcoinsdbview
;
1400 delete pcoinscatcher
;
1403 pblocktree
= new CBlockTreeDB(nBlockTreeDBCache
, false, fReset
);
1406 pblocktree
->WriteReindexing(true);
1407 //If we're reindexing in prune mode, wipe away unusable block files and all undo data files
1409 CleanupBlockRevFiles();
1412 if (fRequestShutdown
) break;
1414 // LoadBlockIndex will load fTxIndex from the db, or set it if
1415 // we're reindexing. It will also load fHavePruned if we've
1416 // ever removed a block file from disk.
1417 // Note that it also sets fReindex based on the disk flag!
1418 // From here on out fReindex and fReset mean something different!
1419 if (!LoadBlockIndex(chainparams
)) {
1420 strLoadError
= _("Error loading block database");
1424 // If the loaded chain has a wrong genesis, bail out immediately
1425 // (we're likely using a testnet datadir, or the other way around).
1426 if (!mapBlockIndex
.empty() && mapBlockIndex
.count(chainparams
.GetConsensus().hashGenesisBlock
) == 0)
1427 return InitError(_("Incorrect or no genesis block found. Wrong datadir for network?"));
1429 // Check for changed -txindex state
1430 if (fTxIndex
!= gArgs
.GetBoolArg("-txindex", DEFAULT_TXINDEX
)) {
1431 strLoadError
= _("You need to rebuild the database using -reindex-chainstate to change -txindex");
1435 // Check for changed -prune state. What we are concerned about is a user who has pruned blocks
1436 // in the past, but is now trying to run unpruned.
1437 if (fHavePruned
&& !fPruneMode
) {
1438 strLoadError
= _("You need to rebuild the database using -reindex to go back to unpruned mode. This will redownload the entire blockchain");
1442 // At this point blocktree args are consistent with what's on disk.
1443 // If we're not mid-reindex (based on disk + args), add a genesis block on disk
1444 // (otherwise we use the one already on disk).
1445 // This is called again in ThreadImport after the reindex completes.
1446 if (!fReindex
&& !LoadGenesisBlock(chainparams
)) {
1447 strLoadError
= _("Error initializing block database");
1451 // At this point we're either in reindex or we've loaded a useful
1452 // block tree into mapBlockIndex!
1454 pcoinsdbview
= new CCoinsViewDB(nCoinDBCache
, false, fReset
|| fReindexChainState
);
1455 pcoinscatcher
= new CCoinsViewErrorCatcher(pcoinsdbview
);
1457 // If necessary, upgrade from older database format.
1458 // This is a no-op if we cleared the coinsviewdb with -reindex or -reindex-chainstate
1459 if (!pcoinsdbview
->Upgrade()) {
1460 strLoadError
= _("Error upgrading chainstate database");
1464 // ReplayBlocks is a no-op if we cleared the coinsviewdb with -reindex or -reindex-chainstate
1465 if (!ReplayBlocks(chainparams
, pcoinsdbview
)) {
1466 strLoadError
= _("Unable to replay blocks. You will need to rebuild the database using -reindex-chainstate.");
1470 // The on-disk coinsdb is now in a good state, create the cache
1471 pcoinsTip
= new CCoinsViewCache(pcoinscatcher
);
1473 bool is_coinsview_empty
= fReset
|| fReindexChainState
|| pcoinsTip
->GetBestBlock().IsNull();
1474 if (!is_coinsview_empty
) {
1475 // LoadChainTip sets chainActive based on pcoinsTip's best block
1476 if (!LoadChainTip(chainparams
)) {
1477 strLoadError
= _("Error initializing block database");
1480 assert(chainActive
.Tip() != nullptr);
1484 // Note that RewindBlockIndex MUST run even if we're about to -reindex-chainstate.
1485 // It both disconnects blocks based on chainActive, and drops block data in
1486 // mapBlockIndex based on lack of available witness data.
1487 uiInterface
.InitMessage(_("Rewinding blocks..."));
1488 if (!RewindBlockIndex(chainparams
)) {
1489 strLoadError
= _("Unable to rewind the database to a pre-fork state. You will need to redownload the blockchain");
1494 if (!is_coinsview_empty
) {
1495 uiInterface
.InitMessage(_("Verifying blocks..."));
1496 if (fHavePruned
&& gArgs
.GetArg("-checkblocks", DEFAULT_CHECKBLOCKS
) > MIN_BLOCKS_TO_KEEP
) {
1497 LogPrintf("Prune: pruned datadir may not have more than %d blocks; only checking available blocks",
1498 MIN_BLOCKS_TO_KEEP
);
1503 CBlockIndex
* tip
= chainActive
.Tip();
1504 RPCNotifyBlockChange(true, tip
);
1505 if (tip
&& tip
->nTime
> GetAdjustedTime() + 2 * 60 * 60) {
1506 strLoadError
= _("The block database contains a block which appears to be from the future. "
1507 "This may be due to your computer's date and time being set incorrectly. "
1508 "Only rebuild the block database if you are sure that your computer's date and time are correct");
1513 if (!CVerifyDB().VerifyDB(chainparams
, pcoinsdbview
, gArgs
.GetArg("-checklevel", DEFAULT_CHECKLEVEL
),
1514 gArgs
.GetArg("-checkblocks", DEFAULT_CHECKBLOCKS
))) {
1515 strLoadError
= _("Corrupted block database detected");
1519 } catch (const std::exception
& e
) {
1520 LogPrintf("%s\n", e
.what());
1521 strLoadError
= _("Error opening block database");
1528 if (!fLoaded
&& !fRequestShutdown
) {
1529 // first suggest a reindex
1531 bool fRet
= uiInterface
.ThreadSafeQuestion(
1532 strLoadError
+ ".\n\n" + _("Do you want to rebuild the block database now?"),
1533 strLoadError
+ ".\nPlease restart with -reindex or -reindex-chainstate to recover.",
1534 "", CClientUIInterface::MSG_ERROR
| CClientUIInterface::BTN_ABORT
);
1537 fRequestShutdown
= false;
1539 LogPrintf("Aborted block database rebuild. Exiting.\n");
1543 return InitError(strLoadError
);
1548 // As LoadBlockIndex can take several minutes, it's possible the user
1549 // requested to kill the GUI during the last operation. If so, exit.
1550 // As the program has not fully started yet, Shutdown() is possibly overkill.
1551 if (fRequestShutdown
)
1553 LogPrintf("Shutdown requested. Exiting.\n");
1557 LogPrintf(" block index %15dms\n", GetTimeMillis() - nStart
);
1560 fs::path est_path
= GetDataDir() / FEE_ESTIMATES_FILENAME
;
1561 CAutoFile
est_filein(fsbridge::fopen(est_path
, "rb"), SER_DISK
, CLIENT_VERSION
);
1562 // Allowed to fail as this file IS missing on first startup.
1563 if (!est_filein
.IsNull())
1564 ::feeEstimator
.Read(est_filein
);
1565 fFeeEstimatesInitialized
= true;
1567 // ********************************************************* Step 8: load wallet
1568 #ifdef ENABLE_WALLET
1569 if (!CWallet::InitLoadWallet())
1572 LogPrintf("No wallet support compiled in!\n");
1575 // ********************************************************* Step 9: data directory maintenance
1577 // if pruning, unset the service bit and perform the initial blockstore prune
1578 // after any wallet rescanning has taken place.
1580 LogPrintf("Unsetting NODE_NETWORK on prune mode\n");
1581 nLocalServices
= ServiceFlags(nLocalServices
& ~NODE_NETWORK
);
1583 uiInterface
.InitMessage(_("Pruning blockstore..."));
1588 if (chainparams
.GetConsensus().vDeployments
[Consensus::DEPLOYMENT_SEGWIT
].nTimeout
!= 0) {
1589 // Only advertise witness capabilities if they have a reasonable start time.
1590 // This allows us to have the code merged without a defined softfork, by setting its
1592 // Note that setting NODE_WITNESS is never required: the only downside from not
1593 // doing so is that after activation, no upgraded nodes will fetch from you.
1594 nLocalServices
= ServiceFlags(nLocalServices
| NODE_WITNESS
);
1595 // Only care about others providing witness capabilities if there is a softfork
1597 nRelevantServices
= ServiceFlags(nRelevantServices
| NODE_WITNESS
);
1600 // ********************************************************* Step 10: import blocks
1602 if (!CheckDiskSpace())
1605 // Either install a handler to notify us when genesis activates, or set fHaveGenesis directly.
1606 // No locking, as this happens before any background thread is started.
1607 if (chainActive
.Tip() == nullptr) {
1608 uiInterface
.NotifyBlockTip
.connect(BlockNotifyGenesisWait
);
1610 fHaveGenesis
= true;
1613 if (gArgs
.IsArgSet("-blocknotify"))
1614 uiInterface
.NotifyBlockTip
.connect(BlockNotifyCallback
);
1616 std::vector
<fs::path
> vImportFiles
;
1617 for (const std::string
& strFile
: gArgs
.GetArgs("-loadblock")) {
1618 vImportFiles
.push_back(strFile
);
1621 threadGroup
.create_thread(boost::bind(&ThreadImport
, vImportFiles
));
1623 // Wait for genesis block to be processed
1625 boost::unique_lock
<boost::mutex
> lock(cs_GenesisWait
);
1626 while (!fHaveGenesis
) {
1627 condvar_GenesisWait
.wait(lock
);
1629 uiInterface
.NotifyBlockTip
.disconnect(BlockNotifyGenesisWait
);
1632 // ********************************************************* Step 11: start node
1635 LogPrintf("mapBlockIndex.size() = %u\n", mapBlockIndex
.size());
1636 LogPrintf("nBestHeight = %d\n", chainActive
.Height());
1637 if (gArgs
.GetBoolArg("-listenonion", DEFAULT_LISTEN_ONION
))
1638 StartTorControl(threadGroup
, scheduler
);
1640 Discover(threadGroup
);
1642 // Map ports with UPnP
1643 MapPort(gArgs
.GetBoolArg("-upnp", DEFAULT_UPNP
));
1645 CConnman::Options connOptions
;
1646 connOptions
.nLocalServices
= nLocalServices
;
1647 connOptions
.nRelevantServices
= nRelevantServices
;
1648 connOptions
.nMaxConnections
= nMaxConnections
;
1649 connOptions
.nMaxOutbound
= std::min(MAX_OUTBOUND_CONNECTIONS
, connOptions
.nMaxConnections
);
1650 connOptions
.nMaxAddnode
= MAX_ADDNODE_CONNECTIONS
;
1651 connOptions
.nMaxFeeler
= 1;
1652 connOptions
.nBestHeight
= chainActive
.Height();
1653 connOptions
.uiInterface
= &uiInterface
;
1654 connOptions
.nSendBufferMaxSize
= 1000*gArgs
.GetArg("-maxsendbuffer", DEFAULT_MAXSENDBUFFER
);
1655 connOptions
.nReceiveFloodSize
= 1000*gArgs
.GetArg("-maxreceivebuffer", DEFAULT_MAXRECEIVEBUFFER
);
1657 connOptions
.nMaxOutboundTimeframe
= nMaxOutboundTimeframe
;
1658 connOptions
.nMaxOutboundLimit
= nMaxOutboundLimit
;
1660 for (const std::string
& strBind
: gArgs
.GetArgs("-bind")) {
1662 if (!Lookup(strBind
.c_str(), addrBind
, GetListenPort(), false)) {
1663 return InitError(ResolveErrMsg("bind", strBind
));
1665 connOptions
.vBinds
.push_back(addrBind
);
1667 for (const std::string
& strBind
: gArgs
.GetArgs("-whitebind")) {
1669 if (!Lookup(strBind
.c_str(), addrBind
, 0, false)) {
1670 return InitError(ResolveErrMsg("whitebind", strBind
));
1672 if (addrBind
.GetPort() == 0) {
1673 return InitError(strprintf(_("Need to specify a port with -whitebind: '%s'"), strBind
));
1675 connOptions
.vWhiteBinds
.push_back(addrBind
);
1678 for (const auto& net
: gArgs
.GetArgs("-whitelist")) {
1680 LookupSubNet(net
.c_str(), subnet
);
1681 if (!subnet
.IsValid())
1682 return InitError(strprintf(_("Invalid netmask specified in -whitelist: '%s'"), net
));
1683 connOptions
.vWhitelistedRange
.push_back(subnet
);
1686 if (gArgs
.IsArgSet("-seednode")) {
1687 connOptions
.vSeedNodes
= gArgs
.GetArgs("-seednode");
1690 if (!connman
.Start(scheduler
, connOptions
)) {
1694 // ********************************************************* Step 12: finished
1696 SetRPCWarmupFinished();
1697 uiInterface
.InitMessage(_("Done loading"));
1699 #ifdef ENABLE_WALLET
1700 for (CWalletRef pwallet
: vpwallets
) {
1701 pwallet
->postInitProcess(scheduler
);
1705 return !fRequestShutdown
;