-
Notifications
You must be signed in to change notification settings - Fork 125
/
init.cpp
1194 lines (1058 loc) · 51.5 KB
/
init.cpp
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
// Copyright (c) 2009-2010 Satoshi Nakamoto
// Copyright (c) 2009-2014 The Bitcoin developers
// Copyright (c) 2017 The Feathercoin 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 "addrman.h"
#include "checkpoints.h"
#include "key.h"
#include "main.h"
#include "miner.h"
#include "net.h"
#include "rpcserver.h"
#include "txdb.h"
#include "ui_interface.h"
#include "util.h"
#include "checkpointsync.h"
#ifdef ENABLE_WALLET
#include "db.h"
#include "wallet.h"
#include "walletdb.h"
#endif
#include <stdint.h>
#include <stdio.h>
#ifndef WIN32
#include <signal.h>
#endif
#include <boost/algorithm/string/predicate.hpp>
#include <boost/filesystem.hpp>
#include <boost/interprocess/sync/file_lock.hpp>
#include <openssl/crypto.h>
using namespace std;
using namespace boost;
#ifdef ENABLE_WALLET
std::string strWalletFile;
CWallet* pwalletMain;
#endif
#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)
};
/* Assembly level processor optimisation features */
unsigned int opt_flags = 0;
//////////////////////////////////////////////////////////////////////////////
//
// 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()
{
// if (fDebug) LogPrintf("Shutdown : In progress...\n");
static CCriticalSection cs_Shutdown;
TRY_LOCK(cs_Shutdown, lockShutdown);
if (!lockShutdown) return;
RenameThread("feathercoin-shutoff");
mempool.AddTransactionsUpdated(1);
StopRPCThreads();
ShutdownRPCMining();
#ifdef ENABLE_WALLET
if (pwalletMain)
bitdb.Flush(false);
GenerateBitcoins(false, NULL, 0);
#endif
StopNode();
UnregisterNodeSignals(GetNodeSignals());
{
LOCK(cs_main);
#ifdef ENABLE_WALLET
if (pwalletMain)
pwalletMain->SetBestChain(chainActive.GetLocator());
#endif
if (pblocktree)
pblocktree->Flush();
if (pcoinsTip)
pcoinsTip->Flush();
delete pcoinsTip; pcoinsTip = NULL;
delete pcoinsdbview; pcoinsdbview = NULL;
delete pblocktree; pblocktree = NULL;
}
#ifdef ENABLE_WALLET
if (pwalletMain)
bitdb.Flush(true);
#endif
boost::filesystem::remove(GetPidFile());
UnregisterAllWallets();
#ifdef ENABLE_WALLET
if (pwalletMain)
delete pwalletMain;
#endif
{
// if (fDebug) 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 | CClientUIInterface::NOSHOWGUI);
return false;
}
bool static InitWarning(const std::string &str)
{
uiInterface.ThreadSafeMessageBox(str, "", CClientUIInterface::MSG_WARNING | CClientUIInterface::NOSHOWGUI);
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, daemon and RPC client
std::string HelpMessage(HelpMessageMode hmm)
{
string strUsage = _("Options:") + "\n";
strUsage += " -? " + _("This help message") + "\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 += " -blocknotify=<cmd> " + _("Execute command when the best block changes (%s in cmd is replaced by block hash)") + "\n";
strUsage += " -checkblocks=<n> " + _("How many blocks to check at startup (default: 288, 0 = all)") + "\n";
strUsage += " -checklevel=<n> " + _("How thorough the block verification of -checkblocks is (0-4, default: 3)") + "\n";
strUsage += " -conf=<file> " + _("Specify configuration file (default: feathercoin.conf)") + "\n";
if (hmm == HMM_BITCOIND)
{
#if !defined(WIN32)
strUsage += " -daemon " + _("Run in the background as a daemon and accept commands") + "\n";
#endif
}
strUsage += " -datadir=<dir> " + _("Specify data directory") + "\n";
strUsage += " -dbcache=<n> " + strprintf(_("Set database cache size in megabytes (%d to %d, default: %d)"), nMinDbCache, nMaxDbCache, nDefaultDbCache) + "\n";
strUsage += " -loadblock=<file> " + _("Imports blocks from external blk000??.dat file") + " " + _("on startup") + "\n";
strUsage += " -maxorphanblocks=<n> " + strprintf(_("Keep at most <n> unconnectable blocks in memory (default: %u)"), DEFAULT_MAX_ORPHAN_BLOCKS) + "\n";
strUsage += " -maxorphantx=<n> " + strprintf(_("Keep at most <n> unconnectable transactions in memory (default: %u)"), DEFAULT_MAX_ORPHAN_TRANSACTIONS) + "\n";
strUsage += " -par=<n> " + strprintf(_("Set the number of script verification threads (%u to %d, 0 = auto, <0 = leave that many cores free, default: %d)"), -(int)boost::thread::hardware_concurrency(), MAX_SCRIPTCHECK_THREADS, DEFAULT_SCRIPTCHECK_THREADS) + "\n";
strUsage += " -pid=<file> " + _("Specify pid file (default: feathercoind.pid)") + "\n";
strUsage += " -reindex " + _("Rebuild block chain index from current blk000??.dat files") + " " + _("on startup") + "\n";
strUsage += " -txindex " + _("Maintain a full transaction index (default: 0)") + "\n";
strUsage += "\n" + _("Connection options:") + "\n";
strUsage += " -addnode=<ip> " + _("Add a node to connect to and attempt to keep the connection open") + "\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 += " -bind=<addr> " + _("Bind to given address and always listen on it. Use [host]:port notation for IPv6") + "\n";
strUsage += " -connect=<ip> " + _("Connect only to the specified node(s)") + "\n";
strUsage += " -discover " + _("Discover own IP address (default: 1 when listening and no -externalip)") + "\n";
strUsage += " -dns " + _("Allow DNS lookups for -addnode, -seednode and -connect") + " " + _("(default: 1)") + "\n";
strUsage += " -dnsseed " + _("Query for peer addresses via DNS lookup, if low on addresses (default: 1 unless -connect)") + "\n";
strUsage += " -forcednsseed " + _("Always query for peer addresses via DNS lookup (default: 0)") + "\n";
strUsage += " -externalip=<ip> " + _("Specify your own public address") + "\n";
strUsage += " -listen " + _("Accept connections from outside (default: 1 if no -proxy or -connect)") + "\n";
strUsage += " -maxconnections=<n> " + _("Maintain at most <n> connections to peers (default: 150)") + "\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";
strUsage += " -onion=<ip:port> " + _("Use separate SOCKS5 proxy to reach peers via Tor hidden services (default: -proxy)") + "\n";
strUsage += " -onlynet=<net> " + _("Only connect to nodes in network <net> (IPv4, IPv6 or Tor)") + "\n";
strUsage += " -port=<port> " + _("Listen for connections on <port> (default: 9336 or testnet: 19336)") + "\n";
strUsage += " -proxy=<ip:port> " + _("Connect through SOCKS proxy") + "\n";
strUsage += " -seednode=<ip> " + _("Connect to a node to retrieve peer addresses, and disconnect") + "\n";
strUsage += " -socks=<n> " + _("Select SOCKS version for -proxy (4 or 5, default: 5)") + "\n";
strUsage += " -timeout=<n> " + _("Specify connection timeout in milliseconds (default: 5000)") + "\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
#ifdef ENABLE_WALLET
strUsage += "\n" + _("Wallet options:") + "\n";
strUsage += " -disablewallet " + _("Do not load the wallet and disable wallet RPC calls") + "\n";
strUsage += " -keypool=<n> " + _("Set key pool size to <n> (default: 100)") + "\n";
strUsage += " -paytxfee=<amt> " + _("Fee per kB to add to transactions you send") + "\n";
strUsage += " -rescan " + _("Rescan the block chain for missing wallet transactions") + " " + _("on startup") + "\n";
strUsage += " -salvagewallet " + _("Attempt to recover private keys from a corrupt wallet.dat") + " " + _("on startup") + "\n";
strUsage += " -spendzeroconfchange " + _("Spend unconfirmed change when sending transactions (default: 1)") + "\n";
strUsage += " -upgradewallet " + _("Upgrade wallet to latest format") + " " + _("on startup") + "\n";
strUsage += " -wallet=<file> " + _("Specify wallet file (within data directory)") + " " + _("(default: wallet.dat)") + "\n";
strUsage += " -walletnotify=<cmd> " + _("Execute command when a wallet transaction changes (%s in cmd is replaced by TxID)") + "\n";
strUsage += " -zapwallettxes " + _("Clear list of wallet transactions (diagnostic tool; implies -rescan)") + "\n";
#endif
strUsage += "\n" + _("Debugging/Testing options:") + "\n";
if (GetBoolArg("-help-debug", false))
{
strUsage += " -benchmark " + _("Show benchmark information (default: 0)") + "\n";
strUsage += " -checkpoints " + _("Only accept block chain matching built-in checkpoints (default: 1)") + "\n";
strUsage += " -dblogsize=<n> " + _("Flush database activity from memory pool to disk log every <n> megabytes (default: 100)") + "\n";
strUsage += " -disablesafemode " + _("Disable safemode, override a real safe mode event (default: 0)") + "\n";
strUsage += " -testsafemode " + _("Force safe mode (default: 0)") + "\n";
strUsage += " -dropmessagestest=<n> " + _("Randomly drop 1 of every <n> network messages") + "\n";
strUsage += " -fuzzmessagestest=<n> " + _("Randomly fuzz 1 of every <n> network messages") + "\n";
strUsage += " -flushwallet " + _("Run a thread to flush wallet periodically (default: 1)") + "\n";
}
strUsage += " -debug=<category> " + _("Output debugging information (default: 0, supplying <category> is optional)") + "\n";
strUsage += " " + _("If <category> is not supplied, output all debugging information.") + "\n";
strUsage += " " + _("<category> can be:");
strUsage += " addrman, alert, coindb, db, lock, rand, rpc, selectcoins, mempool, net"; // Don't translate these and qt below
if (hmm == HMM_BITCOIN_QT)
strUsage += ", qt";
strUsage += ".\n";
#ifdef ENABLE_WALLET
strUsage += " -gen " + _("Generate coins (default: 0)") + "\n";
strUsage += " -genproclimit=<n> " + _("Set the processor limit for when generation is on (-1 = unlimited, default: -1)") + "\n";
#endif
strUsage += " -help-debug " + _("Show all debugging options (usage: --help -help-debug)") + "\n";
strUsage += " -logtimestamps " + _("Prepend debug output with timestamp (default: 1)") + "\n";
if (GetBoolArg("-help-debug", false))
{
strUsage += " -limitfreerelay=<n> " + _("Continuously rate-limit free transactions to <n>*1000 bytes per minute (default:15)") + "\n";
strUsage += " -maxsigcachesize=<n> " + _("Limit size of signature cache to <n> entries (default: 50000)") + "\n";
}
strUsage += " -mintxfee=<amt> " + _("Fees smaller than this are considered zero fee (for transaction creation) (default:") + " " + FormatMoney(CTransaction::nMinTxFee) + ")" + "\n";
strUsage += " -minrelaytxfee=<amt> " + _("Fees smaller than this are considered zero fee (for relaying) (default:") + " " + FormatMoney(CTransaction::nMinRelayTxFee) + ")" + "\n";
strUsage += " -printtoconsole " + _("Send trace/debug info to console instead of debug.log file") + "\n";
if (GetBoolArg("-help-debug", false))
{
strUsage += " -printblock=<hash> " + _("Print block on startup, if found in block index") + "\n";
strUsage += " -printblocktree " + _("Print block tree on startup (default: 0)") + "\n";
strUsage += " -printpriority " + _("Log transaction priority and fee per kB when mining blocks (default: 0)") + "\n";
strUsage += " -privdb " + _("Sets the DB_PRIVATE flag in the wallet db environment (default: 1)") + "\n";
strUsage += " -regtest " + _("Enter regression test mode, which uses a special chain in which blocks can be solved instantly.") + "\n";
strUsage += " " + _("This is intended for regression testing tools and app development.") + "\n";
strUsage += " " + _("In this mode -genproclimit controls how many blocks are generated immediately.") + "\n";
}
strUsage += " -shrinkdebugfile " + _("Shrink debug.log file on client startup (default: 1 when no -debug)") + "\n";
strUsage += " -testnet " + _("Use the test network") + "\n";
strUsage += "\n" + _("Block creation options:") + "\n";
strUsage += " -blockminsize=<n> " + _("Set minimum block size in bytes (default: 0)") + "\n";
strUsage += " -blockmaxsize=<n> " + strprintf(_("Set maximum block size in bytes (default: %d)"), DEFAULT_BLOCK_MAX_SIZE) + "\n";
strUsage += " -blockprioritysize=<n> " + strprintf(_("Set maximum size of high-priority/low-fee transactions in bytes (default: %d)"), DEFAULT_BLOCK_PRIORITY_SIZE) + "\n";
strUsage += "\n" + _("RPC server options:") + "\n";
strUsage += " -server " + _("Accept command line and JSON-RPC commands") + "\n";
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: 9337 or testnet: 19337)") + "\n";
strUsage += " -rpcallowip=<ip> " + _("Allow JSON-RPC connections from specified IP address") + "\n";
strUsage += " -rpcthreads=<n> " + _("Set the number of threads to service RPC calls (default: 4)") + "\n";
strUsage += "\n" + _("RPC 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: TLSv1.2+HIGH:TLSv1+HIGH:!SSLv2:!aNULL:!eNULL:!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("feathercoin-loadblk");
// -reindex
if (fReindex) {
CImportingNow imp;
int nFile = 0;
while (true) {
CDiskBlockPos pos(nFile, 0);
FILE *file = OpenBlockFile(pos, true);
if (!file)
break;
// if (fDebug) LogPrintf("Reindexing block file blk%05u.dat...\n", (unsigned int)nFile);
LoadExternalBlockFile(file, &pos);
nFile++;
}
pblocktree->WriteReindexing(false);
fReindex = false;
// if (fDebug) 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);
} else {
// if (fDebug) LogPrintf("Warning: Could not open bootstrap file %s\n", pathBootstrap.string());
}
}
// -loadblock=
BOOST_FOREACH(boost::filesystem::path &path, vImportFiles) {
FILE *file = fopen(path.string().c_str(), "rb");
if (file) {
CImportingNow imp;
// if (fDebug) LogPrintf("Importing blocks file %s...\n", path.string());
LoadExternalBlockFile(file);
} else {
// if (fDebug) LogPrintf("Warning: Could not open blocks file %s\n", path.string());
}
}
}
/** Sanity checks
* Ensure that Bitcoin is running in a usable environment with all
* necessary library support.
*/
bool InitSanityCheck(void)
{
if(!ECC_InitSanityCheck()) {
InitError("OpenSSL appears to lack support for elliptic curve cryptography. For more "
"information, visit https://en.bitcoin.it/wiki/OpenSSL_and_EC_Libraries");
return false;
}
// TODO: remaining sanity checks, see #4081
return true;
}
/** Initialize feathercoin.
* @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
opt_flags = cpu_vec_exts();
if(GetBoolArg("-sse2", true)) {
/* Verify hardware SSE2 support */
if(opt_flags & 0x00000020) {
printf("SSE2 optimisations enabled\n");
nNeoScryptOptions |= 0x1000;
} else {
printf("SSE2 unsupported, optimisations disabled\n");
}
} else {
printf("SSE2 optimisations disabled\n");
}
if (mapArgs.count("-bind")) {
// when specifying an explicit binding address, you want to listen on it
// even when -connect or -proxy is specified
if (SoftSetBoolArg("-listen", true)) {
// if (fDebug) LogPrintf("AppInit2 : parameter interaction: -bind set -> setting -listen=1\n");
}
}
if (mapArgs.count("-connect") && mapMultiArgs["-connect"].size() > 0) {
// when only connecting to trusted nodes, do not seed via DNS, or listen by default
if (SoftSetBoolArg("-dnsseed", false)) {
// if (fDebug) LogPrintf("AppInit2 : parameter interaction: -connect set -> setting -dnsseed=0\n");
}
if (SoftSetBoolArg("-listen", false)) {
// if (fDebug) LogPrintf("AppInit2 : parameter interaction: -connect set -> setting -listen=0\n");
}
}
if (mapArgs.count("-proxy")) {
// to protect privacy, do not listen by default if a default proxy server is specified
if (SoftSetBoolArg("-listen", false)) {
// if (fDebug) LogPrintf("AppInit2 : parameter interaction: -proxy set -> setting -listen=0\n");
}
}
if (!GetBoolArg("-listen", true)) {
// do not map ports or try to retrieve public IP when not listening (pointless)
if (SoftSetBoolArg("-upnp", false)) {
// if (fDebug) LogPrintf("AppInit2 : parameter interaction: -listen=0 -> setting -upnp=0\n");
}
if (SoftSetBoolArg("-discover", false)) {
// if (fDebug) LogPrintf("AppInit2 : parameter interaction: -listen=0 -> setting -discover=0\n");
}
}
if (mapArgs.count("-externalip")) {
// if an explicit public IP is specified, do not try to find others
if (SoftSetBoolArg("-discover", false)) {
// if (fDebug) LogPrintf("AppInit2 : parameter interaction: -externalip set -> setting -discover=0\n");
}
}
if (GetBoolArg("-salvagewallet", false)) {
// Rewrite just private keys: rescan to find transactions
if (SoftSetBoolArg("-rescan", true)) {
// if (fDebug) LogPrintf("AppInit2 : parameter interaction: -salvagewallet=1 -> setting -rescan=1\n");
}
}
// -zapwallettx implies a rescan
if (GetBoolArg("-zapwallettxes", false)) {
if (SoftSetBoolArg("-rescan", true)) {
// if (fDebug) LogPrintf("AppInit2 : parameter interaction: -zapwallettxes=1 -> setting -rescan=1\n");
}
}
// Make sure enough file descriptors are available
int nBind = std::max((int)mapArgs.count("-bind"), 1);
nMaxConnections = GetArg("-maxconnections", 150);
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
fDebug = !mapMultiArgs["-debug"].empty();
// Special-case: if -debug=0/-nodebug is set, turn off debugging messages
const vector<string>& categories = mapMultiArgs["-debug"];
if (GetBoolArg("-nodebug", false) || find(categories.begin(), categories.end(), string("0")) != categories.end())
fDebug = false;
// Check for -debugnet (deprecated)
if (GetBoolArg("-debugnet", false))
InitWarning(_("Warning: Deprecated argument -debugnet ignored, use -debug=net"));
fBenchmark = GetBoolArg("-benchmark", false);
mempool.setSanityCheck(GetBoolArg("-checkmempool", RegTest()));
Checkpoints::fEnabled = GetBoolArg("-checkpoints", true);
// -par=0 means autodetect, but nScriptCheckThreads==0 means no concurrency
nScriptCheckThreads = GetArg("-par", DEFAULT_SCRIPTCHECK_THREADS);
if (nScriptCheckThreads <= 0)
nScriptCheckThreads += boost::thread::hardware_concurrency();
if (nScriptCheckThreads <= 1)
nScriptCheckThreads = 0;
else if (nScriptCheckThreads > MAX_SCRIPTCHECK_THREADS)
nScriptCheckThreads = MAX_SCRIPTCHECK_THREADS;
fServer = GetBoolArg("-server", false);
fPrintToConsole = GetBoolArg("-printtoconsole", false);
fLogTimestamps = GetBoolArg("-logtimestamps", true);
setvbuf(stdout, NULL, _IOLBF, 0);
#ifdef ENABLE_WALLET
bool fDisableWallet = GetBoolArg("-disablewallet", false);
#endif
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_t n = 0;
if (ParseMoney(mapArgs["-mintxfee"], n) && n > 0)
CTransaction::nMinTxFee = n;
else
return InitError(strprintf(_("Invalid amount for -mintxfee=<amount>: '%s'"), mapArgs["-mintxfee"]));
}
if (mapArgs.count("-minrelaytxfee"))
{
int64_t n = 0;
if (ParseMoney(mapArgs["-minrelaytxfee"], n) && n > 0)
CTransaction::nMinRelayTxFee = n;
else
return InitError(strprintf(_("Invalid amount for -minrelaytxfee=<amount>: '%s'"), mapArgs["-minrelaytxfee"]));
}
#ifdef ENABLE_WALLET
if (mapArgs.count("-paytxfee"))
{
if (!ParseMoney(mapArgs["-paytxfee"], nTransactionFee))
return InitError(strprintf(_("Invalid amount for -paytxfee=<amount>: '%s'"), mapArgs["-paytxfee"]));
if (nTransactionFee > nHighTransactionFeeWarning)
InitWarning(_("Warning: -paytxfee is set very high! This is the transaction fee you will pay if you send a transaction."));
}
bSpendZeroConfChange = GetArg("-spendzeroconfchange", true);
strWalletFile = GetArg("-wallet", "wallet.dat");
#endif
if (mapArgs.count("-checkpointkey")) // ppcoin: checkpoint master priv key
{
if (!SetCheckpointPrivKey(GetArg("-checkpointkey", "")))
return InitError(_("Unable to sign checkpoint, wrong checkpointkey?"));
}
// ********************************************************* Step 4: application initialization: dir lock, daemonize, pidfile, debug log
// Sanity check
if (!InitSanityCheck())
return InitError(_("Initialization sanity check failed. Feathercoin Core is shutting down."));
std::string strDataDir = GetDataDir().string();
#ifdef ENABLE_WALLET
// 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, strDataDir));
#endif
// Make sure only a single feathercoin 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. Feathercoin Core is probably already running."), strDataDir));
if (GetBoolArg("-shrinkdebugfile", !fDebug))
ShrinkDebugFile();
// if (fDebug) LogPrintf("\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n");
// if (fDebug) LogPrintf("Feathercoin version %s (%s)\n", FormatFullVersion(), CLIENT_DATE);
// if (fDebug) LogPrintf("Using OpenSSL version %s\n", SSLeay_version(SSLEAY_VERSION));
#ifdef ENABLE_WALLET
{
// if (fDebug) LogPrintf("Using BerkeleyDB version %s\n", DbEnv::version(0, 0, 0));
}
#endif
// if (fDebug) {
// if (!fLogTimestamps)
// LogPrintf("Startup time: %s\n", DateTimeStrFormat("%Y-%m-%d %H:%M:%S", GetTime()));
// }
// if (fDebug) LogPrintf("Default data directory %s\n", GetDefaultDataDir().string());
// if (fDebug) LogPrintf("Using data directory %s\n", strDataDir);
// if (fDebug) LogPrintf("Using at most %i connections (%i file descriptors available)\n", nMaxConnections, nFD);
std::ostringstream strErrors;
if (nScriptCheckThreads) {
// if (fDebug) LogPrintf("Using %u threads for script verification\n", nScriptCheckThreads);
for (int i=0; i<nScriptCheckThreads-1; i++)
threadGroup.create_thread(&ThreadScriptCheck);
}
int64_t nStart;
// ********************************************************* Step 5: verify wallet database integrity
#ifdef ENABLE_WALLET
if (!fDisableWallet) {
// if (fDebug) LogPrintf("Using wallet %s\n", strWalletFile);
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.%d.bak", GetTime());
try {
boost::filesystem::rename(pathDatabase, pathDatabaseBak);
// if (fDebug) LogPrintf("Moved old %s to %s. Retrying.\n", pathDatabase.string(), pathDatabaseBak.string());
} 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);
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);
InitWarning(msg);
}
if (r == CDBEnv::RECOVER_FAIL)
return InitError(_("wallet.dat corrupt, salvage failed"));
}
} // (!fDisableWallet)
#endif // ENABLE_WALLET
// ********************************************************* 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));
nets.insert(net);
}
for (int n = 0; n < NET_MAX; n++) {
enum Network net = (enum Network)n;
if (!nets.count(net))
SetLimited(net);
}
}
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"]));
if (!IsLimited(NET_IPV4))
SetProxy(NET_IPV4, addrProxy, nSocksVersion);
if (nSocksVersion > 4) {
if (!IsLimited(NET_IPV6))
SetProxy(NET_IPV6, addrProxy, nSocksVersion);
SetNameProxy(addrProxy, nSocksVersion);
}
fProxy = true;
}
// -onion can override normal proxy, -noonion disables tor entirely
// -tor here is a temporary backwards compatibility measure
if (mapArgs.count("-tor")) {
// if (fDebug) printf("Notice: option -tor has been replaced with -onion and will be removed in a later version.\n");
}
if (!(mapArgs.count("-onion") && mapArgs["-onion"] == "0") &&
!(mapArgs.count("-tor") && mapArgs["-tor"] == "0") &&
(fProxy || mapArgs.count("-onion") || mapArgs.count("-tor"))) {
CService addrOnion;
if (!mapArgs.count("-onion") && !mapArgs.count("-tor"))
addrOnion = addrProxy;
else
addrOnion = mapArgs.count("-onion")?CService(mapArgs["-onion"], 9050):CService(mapArgs["-tor"], 9050);
if (!addrOnion.IsValid())
return InitError(strprintf(_("Invalid -onion address: '%s'"), mapArgs.count("-onion")?mapArgs["-onion"]:mapArgs["-tor"]));
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));
fBound |= Bind(addrBind, (BF_EXPLICIT | BF_REPORT_ERROR));
}
}
else {
struct in_addr inaddr_any;
inaddr_any.s_addr = INADDR_ANY;
fBound |= Bind(CService(in6addr_any, GetListenPort()), BF_NONE);
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));
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);
// if (fDebug) LogPrintf("Hardlinked %s -> %s\n", source.string(), dest.string());
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.
// if (fDebug) LogPrintf("Error hardlinking blk%04u.dat : %s\n", i, e.what());
break;
}
}
if (linked)
{
fReindex = true;
}
}
// cache size calculations
size_t nTotalCache = (GetArg("-dbcache", nDefaultDbCache) << 20);
if (nTotalCache < (nMinDbCache << 20))
nTotalCache = (nMinDbCache << 20); // total cache cannot be less than nMinDbCache
else if (nTotalCache > (nMaxDbCache << 20))
nTotalCache = (nMaxDbCache << 20); // total cache cannot be greater than nMaxDbCache
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() && chainActive.Genesis() == 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;
}
uiInterface.InitMessage(_("Checking ACP ..."));
if (!CheckCheckpointPubKey()) {
strLoadError = _("Checking ACP pubkey failed");
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 the GUI during the last operation. If so, exit.
// As the program has not fully started yet, Shutdown() is possibly overkill.
if (fRequestShutdown)
{
// if (fDebug) LogPrintf("Shutdown requested. Exiting.\n");
return false;
}
// if (fDebug) LogPrintf(" block index %15dms\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();
// if (fDebug) LogPrintf("\n");
nFound++;
}
}
// if (nFound == 0) {