forked from bitcoin/bitcoin
-
Notifications
You must be signed in to change notification settings - Fork 0
/
main.h
1929 lines (1592 loc) · 47.4 KB
/
main.h
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
// Distributed under the MIT/X11 software license, see the accompanying
// file license.txt or http://www.opensource.org/licenses/mit-license.php.
class COutPoint;
class CInPoint;
class CDiskTxPos;
class CCoinBase;
class CTxIn;
class CTxOut;
class CTransaction;
class CBlock;
class CBlockIndex;
class CWalletTx;
class CKeyItem;
static const unsigned int MAX_BLOCK_SIZE = 1000000;
static const unsigned int MAX_BLOCK_SIZE_GEN = MAX_BLOCK_SIZE/2;
static const int MAX_BLOCK_SIGOPS = MAX_BLOCK_SIZE/50;
static const int64 COIN = 100000000;
static const int64 CENT = 1000000;
static const int64 MAX_MONEY = 21000000 * COIN;
inline bool MoneyRange(int64 nValue) { return (nValue >= 0 && nValue <= MAX_MONEY); }
static const int COINBASE_MATURITY = 100;
extern CCriticalSection cs_main;
extern map<uint256, CBlockIndex*> mapBlockIndex;
extern uint256 hashGenesisBlock;
extern CBigNum bnProofOfWorkLimit;
extern CBlockIndex* pindexGenesisBlock;
extern int nBestHeight;
extern CBigNum bnBestChainWork;
extern CBigNum bnBestInvalidWork;
extern uint256 hashBestChain;
extern CBlockIndex* pindexBest;
extern unsigned int nTransactionsUpdated;
extern map<uint256, int> mapRequestCount;
extern CCriticalSection cs_mapRequestCount;
extern map<string, string> mapAddressBook;
extern CCriticalSection cs_mapAddressBook;
extern vector<unsigned char> vchDefaultKey;
extern double dHashesPerSec;
extern int64 nHPSTimerStart;
// Settings
extern int fGenerateBitcoins;
extern int64 nTransactionFee;
extern CAddress addrIncoming;
extern int fLimitProcessors;
extern int nLimitProcessors;
extern int fMinimizeToTray;
extern int fMinimizeOnClose;
bool CheckDiskSpace(uint64 nAdditionalBytes=0);
FILE* OpenBlockFile(unsigned int nFile, unsigned int nBlockPos, const char* pszMode="rb");
FILE* AppendBlockFile(unsigned int& nFileRet);
bool AddKey(const CKey& key);
vector<unsigned char> GenerateNewKey();
bool AddToWallet(const CWalletTx& wtxIn);
void WalletUpdateSpent(const COutPoint& prevout);
int ScanForWalletTransactions(CBlockIndex* pindexStart);
void ReacceptWalletTransactions();
bool LoadBlockIndex(bool fAllowNew=true);
void PrintBlockTree();
bool ProcessMessages(CNode* pfrom);
bool ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv);
bool SendMessages(CNode* pto, bool fSendTrickle);
int64 GetBalance();
bool CreateTransaction(CScript scriptPubKey, int64 nValue, CWalletTx& wtxNew, CReserveKey& reservekey, int64& nFeeRet);
bool CommitTransaction(CWalletTx& wtxNew, CReserveKey& reservekey);
bool BroadcastTransaction(CWalletTx& wtxNew);
string SendMoney(CScript scriptPubKey, int64 nValue, CWalletTx& wtxNew, bool fAskFee=false);
string SendMoneyToBitcoinAddress(string strAddress, int64 nValue, CWalletTx& wtxNew, bool fAskFee=false);
void GenerateBitcoins(bool fGenerate);
void ThreadBitcoinMiner(void* parg);
CBlock* CreateNewBlock(CReserveKey& reservekey);
void IncrementExtraNonce(CBlock* pblock, CBlockIndex* pindexPrev, unsigned int& nExtraNonce, int64& nPrevTime);
void FormatHashBuffers(CBlock* pblock, char* pmidstate, char* pdata, char* phash1);
bool CheckWork(CBlock* pblock, CReserveKey& reservekey);
void BitcoinMiner();
bool CheckProofOfWork(uint256 hash, unsigned int nBits);
bool IsInitialBlockDownload();
string GetWarnings(string strFor);
class CDiskTxPos
{
public:
unsigned int nFile;
unsigned int nBlockPos;
unsigned int nTxPos;
CDiskTxPos()
{
SetNull();
}
CDiskTxPos(unsigned int nFileIn, unsigned int nBlockPosIn, unsigned int nTxPosIn)
{
nFile = nFileIn;
nBlockPos = nBlockPosIn;
nTxPos = nTxPosIn;
}
IMPLEMENT_SERIALIZE( READWRITE(FLATDATA(*this)); )
void SetNull() { nFile = -1; nBlockPos = 0; nTxPos = 0; }
bool IsNull() const { return (nFile == -1); }
friend bool operator==(const CDiskTxPos& a, const CDiskTxPos& b)
{
return (a.nFile == b.nFile &&
a.nBlockPos == b.nBlockPos &&
a.nTxPos == b.nTxPos);
}
friend bool operator!=(const CDiskTxPos& a, const CDiskTxPos& b)
{
return !(a == b);
}
string ToString() const
{
if (IsNull())
return strprintf("null");
else
return strprintf("(nFile=%d, nBlockPos=%d, nTxPos=%d)", nFile, nBlockPos, nTxPos);
}
void print() const
{
printf("%s", ToString().c_str());
}
};
class CInPoint
{
public:
CTransaction* ptx;
unsigned int n;
CInPoint() { SetNull(); }
CInPoint(CTransaction* ptxIn, unsigned int nIn) { ptx = ptxIn; n = nIn; }
void SetNull() { ptx = NULL; n = -1; }
bool IsNull() const { return (ptx == NULL && n == -1); }
};
class COutPoint
{
public:
uint256 hash;
unsigned int n;
COutPoint() { SetNull(); }
COutPoint(uint256 hashIn, unsigned int nIn) { hash = hashIn; n = nIn; }
IMPLEMENT_SERIALIZE( READWRITE(FLATDATA(*this)); )
void SetNull() { hash = 0; n = -1; }
bool IsNull() const { return (hash == 0 && n == -1); }
friend bool operator<(const COutPoint& a, const COutPoint& b)
{
return (a.hash < b.hash || (a.hash == b.hash && a.n < b.n));
}
friend bool operator==(const COutPoint& a, const COutPoint& b)
{
return (a.hash == b.hash && a.n == b.n);
}
friend bool operator!=(const COutPoint& a, const COutPoint& b)
{
return !(a == b);
}
string ToString() const
{
return strprintf("COutPoint(%s, %d)", hash.ToString().substr(0,10).c_str(), n);
}
void print() const
{
printf("%s\n", ToString().c_str());
}
};
//
// An input of a transaction. It contains the location of the previous
// transaction's output that it claims and a signature that matches the
// output's public key.
//
class CTxIn
{
public:
COutPoint prevout;
CScript scriptSig;
unsigned int nSequence;
CTxIn()
{
nSequence = UINT_MAX;
}
explicit CTxIn(COutPoint prevoutIn, CScript scriptSigIn=CScript(), unsigned int nSequenceIn=UINT_MAX)
{
prevout = prevoutIn;
scriptSig = scriptSigIn;
nSequence = nSequenceIn;
}
CTxIn(uint256 hashPrevTx, unsigned int nOut, CScript scriptSigIn=CScript(), unsigned int nSequenceIn=UINT_MAX)
{
prevout = COutPoint(hashPrevTx, nOut);
scriptSig = scriptSigIn;
nSequence = nSequenceIn;
}
IMPLEMENT_SERIALIZE
(
READWRITE(prevout);
READWRITE(scriptSig);
READWRITE(nSequence);
)
bool IsFinal() const
{
return (nSequence == UINT_MAX);
}
friend bool operator==(const CTxIn& a, const CTxIn& b)
{
return (a.prevout == b.prevout &&
a.scriptSig == b.scriptSig &&
a.nSequence == b.nSequence);
}
friend bool operator!=(const CTxIn& a, const CTxIn& b)
{
return !(a == b);
}
string ToString() const
{
string str;
str += strprintf("CTxIn(");
str += prevout.ToString();
if (prevout.IsNull())
str += strprintf(", coinbase %s", HexStr(scriptSig).c_str());
else
str += strprintf(", scriptSig=%s", scriptSig.ToString().substr(0,24).c_str());
if (nSequence != UINT_MAX)
str += strprintf(", nSequence=%u", nSequence);
str += ")";
return str;
}
void print() const
{
printf("%s\n", ToString().c_str());
}
bool IsMine() const;
int64 GetDebit() const;
};
//
// An output of a transaction. It contains the public key that the next input
// must be able to sign with to claim it.
//
class CTxOut
{
public:
int64 nValue;
CScript scriptPubKey;
CTxOut()
{
SetNull();
}
CTxOut(int64 nValueIn, CScript scriptPubKeyIn)
{
nValue = nValueIn;
scriptPubKey = scriptPubKeyIn;
}
IMPLEMENT_SERIALIZE
(
READWRITE(nValue);
READWRITE(scriptPubKey);
)
void SetNull()
{
nValue = -1;
scriptPubKey.clear();
}
bool IsNull()
{
return (nValue == -1);
}
uint256 GetHash() const
{
return SerializeHash(*this);
}
bool IsMine() const
{
return ::IsMine(scriptPubKey);
}
int64 GetCredit() const
{
if (!MoneyRange(nValue))
throw runtime_error("CTxOut::GetCredit() : value out of range");
return (IsMine() ? nValue : 0);
}
bool IsChange() const
{
// On a debit transaction, a txout that's mine but isn't in the address book is change
vector<unsigned char> vchPubKey;
if (ExtractPubKey(scriptPubKey, true, vchPubKey))
CRITICAL_BLOCK(cs_mapAddressBook)
if (!mapAddressBook.count(PubKeyToAddress(vchPubKey)))
return true;
return false;
}
int64 GetChange() const
{
if (!MoneyRange(nValue))
throw runtime_error("CTxOut::GetChange() : value out of range");
return (IsChange() ? nValue : 0);
}
friend bool operator==(const CTxOut& a, const CTxOut& b)
{
return (a.nValue == b.nValue &&
a.scriptPubKey == b.scriptPubKey);
}
friend bool operator!=(const CTxOut& a, const CTxOut& b)
{
return !(a == b);
}
string ToString() const
{
if (scriptPubKey.size() < 6)
return "CTxOut(error)";
return strprintf("CTxOut(nValue=%"PRI64d".%08"PRI64d", scriptPubKey=%s)", nValue / COIN, nValue % COIN, scriptPubKey.ToString().substr(0,30).c_str());
}
void print() const
{
printf("%s\n", ToString().c_str());
}
};
//
// The basic transaction that is broadcasted on the network and contained in
// blocks. A transaction can contain multiple inputs and outputs.
//
class CTransaction
{
public:
int nVersion;
vector<CTxIn> vin;
vector<CTxOut> vout;
unsigned int nLockTime;
CTransaction()
{
SetNull();
}
IMPLEMENT_SERIALIZE
(
READWRITE(this->nVersion);
nVersion = this->nVersion;
READWRITE(vin);
READWRITE(vout);
READWRITE(nLockTime);
)
void SetNull()
{
nVersion = 1;
vin.clear();
vout.clear();
nLockTime = 0;
}
bool IsNull() const
{
return (vin.empty() && vout.empty());
}
uint256 GetHash() const
{
return SerializeHash(*this);
}
bool IsFinal(int nBlockHeight=0, int64 nBlockTime=0) const
{
// Time based nLockTime implemented in 0.1.6
if (nLockTime == 0)
return true;
if (nBlockHeight == 0)
nBlockHeight = nBestHeight;
if (nBlockTime == 0)
nBlockTime = GetAdjustedTime();
if ((int64)nLockTime < (nLockTime < 500000000 ? (int64)nBlockHeight : nBlockTime))
return true;
foreach(const CTxIn& txin, vin)
if (!txin.IsFinal())
return false;
return true;
}
bool IsNewerThan(const CTransaction& old) const
{
if (vin.size() != old.vin.size())
return false;
for (int i = 0; i < vin.size(); i++)
if (vin[i].prevout != old.vin[i].prevout)
return false;
bool fNewer = false;
unsigned int nLowest = UINT_MAX;
for (int i = 0; i < vin.size(); i++)
{
if (vin[i].nSequence != old.vin[i].nSequence)
{
if (vin[i].nSequence <= nLowest)
{
fNewer = false;
nLowest = vin[i].nSequence;
}
if (old.vin[i].nSequence < nLowest)
{
fNewer = true;
nLowest = old.vin[i].nSequence;
}
}
}
return fNewer;
}
bool IsCoinBase() const
{
return (vin.size() == 1 && vin[0].prevout.IsNull());
}
int GetSigOpCount() const
{
int n = 0;
foreach(const CTxIn& txin, vin)
n += txin.scriptSig.GetSigOpCount();
foreach(const CTxOut& txout, vout)
n += txout.scriptPubKey.GetSigOpCount();
return n;
}
bool IsStandard() const
{
foreach(const CTxIn& txin, vin)
if (!txin.scriptSig.IsPushOnly())
return error("nonstandard txin: %s", txin.scriptSig.ToString().c_str());
foreach(const CTxOut& txout, vout)
if (!::IsStandard(txout.scriptPubKey))
return error("nonstandard txout: %s", txout.scriptPubKey.ToString().c_str());
return true;
}
bool IsMine() const
{
foreach(const CTxOut& txout, vout)
if (txout.IsMine())
return true;
return false;
}
bool IsFromMe() const
{
return (GetDebit() > 0);
}
int64 GetDebit() const
{
int64 nDebit = 0;
foreach(const CTxIn& txin, vin)
{
nDebit += txin.GetDebit();
if (!MoneyRange(nDebit))
throw runtime_error("CTransaction::GetDebit() : value out of range");
}
return nDebit;
}
int64 GetCredit() const
{
int64 nCredit = 0;
foreach(const CTxOut& txout, vout)
{
nCredit += txout.GetCredit();
if (!MoneyRange(nCredit))
throw runtime_error("CTransaction::GetCredit() : value out of range");
}
return nCredit;
}
int64 GetChange() const
{
if (IsCoinBase())
return 0;
int64 nChange = 0;
foreach(const CTxOut& txout, vout)
{
nChange += txout.GetChange();
if (!MoneyRange(nChange))
throw runtime_error("CTransaction::GetChange() : value out of range");
}
return nChange;
}
int64 GetValueOut() const
{
int64 nValueOut = 0;
foreach(const CTxOut& txout, vout)
{
nValueOut += txout.nValue;
if (!MoneyRange(txout.nValue) || !MoneyRange(nValueOut))
throw runtime_error("CTransaction::GetValueOut() : value out of range");
}
return nValueOut;
}
int64 GetMinFee(unsigned int nBlockSize=1, bool fAllowFree=true) const
{
// Base fee is 1 cent per kilobyte
unsigned int nBytes = ::GetSerializeSize(*this, SER_NETWORK);
unsigned int nNewBlockSize = nBlockSize + nBytes;
int64 nMinFee = (1 + (int64)nBytes / 1000) * CENT;
if (fAllowFree)
{
if (nBlockSize == 1)
{
// Transactions under 10K are free
// (about 4500bc if made of 50bc inputs)
if (nBytes < 10000)
nMinFee = 0;
}
else
{
// Free transaction area
if (nNewBlockSize < 27000)
nMinFee = 0;
}
}
// To limit dust spam, require a 0.01 fee if any output is less than 0.01
if (nMinFee < CENT)
foreach(const CTxOut& txout, vout)
if (txout.nValue < CENT)
nMinFee = CENT;
// Raise the price as the block approaches full
if (nBlockSize != 1 && nNewBlockSize >= MAX_BLOCK_SIZE_GEN/2)
{
if (nNewBlockSize >= MAX_BLOCK_SIZE_GEN)
return MAX_MONEY;
nMinFee *= MAX_BLOCK_SIZE_GEN / (MAX_BLOCK_SIZE_GEN - nNewBlockSize);
}
if (!MoneyRange(nMinFee))
nMinFee = MAX_MONEY;
return nMinFee;
}
bool ReadFromDisk(CDiskTxPos pos, FILE** pfileRet=NULL)
{
CAutoFile filein = OpenBlockFile(pos.nFile, 0, pfileRet ? "rb+" : "rb");
if (!filein)
return error("CTransaction::ReadFromDisk() : OpenBlockFile failed");
// Read transaction
if (fseek(filein, pos.nTxPos, SEEK_SET) != 0)
return error("CTransaction::ReadFromDisk() : fseek failed");
filein >> *this;
// Return file pointer
if (pfileRet)
{
if (fseek(filein, pos.nTxPos, SEEK_SET) != 0)
return error("CTransaction::ReadFromDisk() : second fseek failed");
*pfileRet = filein.release();
}
return true;
}
friend bool operator==(const CTransaction& a, const CTransaction& b)
{
return (a.nVersion == b.nVersion &&
a.vin == b.vin &&
a.vout == b.vout &&
a.nLockTime == b.nLockTime);
}
friend bool operator!=(const CTransaction& a, const CTransaction& b)
{
return !(a == b);
}
string ToString() const
{
string str;
str += strprintf("CTransaction(hash=%s, ver=%d, vin.size=%d, vout.size=%d, nLockTime=%d)\n",
GetHash().ToString().substr(0,10).c_str(),
nVersion,
vin.size(),
vout.size(),
nLockTime);
for (int i = 0; i < vin.size(); i++)
str += " " + vin[i].ToString() + "\n";
for (int i = 0; i < vout.size(); i++)
str += " " + vout[i].ToString() + "\n";
return str;
}
void print() const
{
printf("%s", ToString().c_str());
}
bool ReadFromDisk(CTxDB& txdb, COutPoint prevout, CTxIndex& txindexRet);
bool ReadFromDisk(CTxDB& txdb, COutPoint prevout);
bool ReadFromDisk(COutPoint prevout);
bool DisconnectInputs(CTxDB& txdb);
bool ConnectInputs(CTxDB& txdb, map<uint256, CTxIndex>& mapTestPool, CDiskTxPos posThisTx,
CBlockIndex* pindexBlock, int64& nFees, bool fBlock, bool fMiner, int64 nMinFee=0);
bool ClientConnectInputs();
bool CheckTransaction() const;
bool AcceptToMemoryPool(CTxDB& txdb, bool fCheckInputs=true, bool* pfMissingInputs=NULL);
bool AcceptToMemoryPool(bool fCheckInputs=true, bool* pfMissingInputs=NULL)
{
CTxDB txdb("r");
return AcceptToMemoryPool(txdb, fCheckInputs, pfMissingInputs);
}
protected:
bool AddToMemoryPoolUnchecked();
public:
bool RemoveFromMemoryPool();
};
//
// A transaction with a merkle branch linking it to the block chain
//
class CMerkleTx : public CTransaction
{
public:
uint256 hashBlock;
vector<uint256> vMerkleBranch;
int nIndex;
// memory only
mutable char fMerkleVerified;
CMerkleTx()
{
Init();
}
CMerkleTx(const CTransaction& txIn) : CTransaction(txIn)
{
Init();
}
void Init()
{
hashBlock = 0;
nIndex = -1;
fMerkleVerified = false;
}
IMPLEMENT_SERIALIZE
(
nSerSize += SerReadWrite(s, *(CTransaction*)this, nType, nVersion, ser_action);
nVersion = this->nVersion;
READWRITE(hashBlock);
READWRITE(vMerkleBranch);
READWRITE(nIndex);
)
int SetMerkleBranch(const CBlock* pblock=NULL);
int GetDepthInMainChain(int& nHeightRet) const;
int GetDepthInMainChain() const { int nHeight; return GetDepthInMainChain(nHeight); }
bool IsInMainChain() const { return GetDepthInMainChain() > 0; }
int GetBlocksToMaturity() const;
bool AcceptToMemoryPool(CTxDB& txdb, bool fCheckInputs=true);
bool AcceptToMemoryPool() { CTxDB txdb("r"); return AcceptToMemoryPool(txdb); }
};
//
// A transaction with a bunch of additional info that only the owner cares
// about. It includes any unrecorded transactions needed to link it back
// to the block chain.
//
class CWalletTx : public CMerkleTx
{
public:
vector<CMerkleTx> vtxPrev;
map<string, string> mapValue;
vector<pair<string, string> > vOrderForm;
unsigned int fTimeReceivedIsTxTime;
unsigned int nTimeReceived; // time received by this node
char fFromMe;
char fSpent;
string strFromAccount;
// memory only
mutable char fDebitCached;
mutable char fCreditCached;
mutable char fChangeCached;
mutable int64 nDebitCached;
mutable int64 nCreditCached;
mutable int64 nChangeCached;
// memory only UI hints
mutable unsigned int nTimeDisplayed;
mutable int nLinesDisplayed;
mutable char fConfirmedDisplayed;
CWalletTx()
{
Init();
}
CWalletTx(const CMerkleTx& txIn) : CMerkleTx(txIn)
{
Init();
}
CWalletTx(const CTransaction& txIn) : CMerkleTx(txIn)
{
Init();
}
void Init()
{
vtxPrev.clear();
mapValue.clear();
vOrderForm.clear();
fTimeReceivedIsTxTime = false;
nTimeReceived = 0;
fFromMe = false;
fSpent = false;
strFromAccount.clear();
fDebitCached = false;
fCreditCached = false;
fChangeCached = false;
nDebitCached = 0;
nCreditCached = 0;
nChangeCached = 0;
nTimeDisplayed = 0;
nLinesDisplayed = 0;
fConfirmedDisplayed = false;
}
IMPLEMENT_SERIALIZE
(
CWalletTx* pthis = const_cast<CWalletTx*>(this);
if (fRead)
pthis->Init();
nSerSize += SerReadWrite(s, *(CMerkleTx*)this, nType, nVersion, ser_action);
READWRITE(vtxPrev);
pthis->mapValue["fromaccount"] = pthis->strFromAccount;
READWRITE(mapValue);
pthis->strFromAccount = pthis->mapValue["fromaccount"];
pthis->mapValue.erase("fromaccount");
pthis->mapValue.erase("version");
READWRITE(vOrderForm);
READWRITE(fTimeReceivedIsTxTime);
READWRITE(nTimeReceived);
READWRITE(fFromMe);
READWRITE(fSpent);
)
int64 GetDebit() const
{
if (vin.empty())
return 0;
if (fDebitCached)
return nDebitCached;
nDebitCached = CTransaction::GetDebit();
fDebitCached = true;
return nDebitCached;
}
int64 GetCredit(bool fUseCache=true) const
{
// Must wait until coinbase is safely deep enough in the chain before valuing it
if (IsCoinBase() && GetBlocksToMaturity() > 0)
return 0;
// GetBalance can assume transactions in mapWallet won't change
if (fUseCache && fCreditCached)
return nCreditCached;
nCreditCached = CTransaction::GetCredit();
fCreditCached = true;
return nCreditCached;
}
int64 GetChange() const
{
if (fChangeCached)
return nChangeCached;
nChangeCached = CTransaction::GetChange();
fChangeCached = true;
return nChangeCached;
}
void GetAmounts(int64& nGenerated, list<pair<string /* address */, int64> >& listReceived,
list<pair<string /* address */, int64> >& listSent, int64& nFee, string& strSentAccount) const;
void GetAccountAmounts(const string& strAccount, int64& nGenerated, int64& nReceived,
int64& nSent, int64& nFee) const;
bool IsFromMe() const
{
return (GetDebit() > 0);
}
bool IsConfirmed() const
{
// Quick answer in most cases
if (!IsFinal())
return false;
if (GetDepthInMainChain() >= 1)
return true;
if (!IsFromMe()) // using wtx's cached debit
return false;
// If no confirmations but it's from us, we can still
// consider it confirmed if all dependencies are confirmed
map<uint256, const CMerkleTx*> mapPrev;
vector<const CMerkleTx*> vWorkQueue;
vWorkQueue.reserve(vtxPrev.size()+1);
vWorkQueue.push_back(this);
for (int i = 0; i < vWorkQueue.size(); i++)
{
const CMerkleTx* ptx = vWorkQueue[i];
if (!ptx->IsFinal())
return false;
if (ptx->GetDepthInMainChain() >= 1)
return true;
if (!ptx->IsFromMe())
return false;
if (mapPrev.empty())
foreach(const CMerkleTx& tx, vtxPrev)
mapPrev[tx.GetHash()] = &tx;
foreach(const CTxIn& txin, ptx->vin)
{
if (!mapPrev.count(txin.prevout.hash))
return false;
vWorkQueue.push_back(mapPrev[txin.prevout.hash]);
}
}
return true;
}
bool WriteToDisk()
{
return CWalletDB().WriteTx(GetHash(), *this);
}
int64 GetTxTime() const;
int GetRequestCount() const;
void AddSupportingTransactions(CTxDB& txdb);
bool AcceptWalletTransaction(CTxDB& txdb, bool fCheckInputs=true);
bool AcceptWalletTransaction() { CTxDB txdb("r"); return AcceptWalletTransaction(txdb); }
void RelayWalletTransaction(CTxDB& txdb);
void RelayWalletTransaction() { CTxDB txdb("r"); RelayWalletTransaction(txdb); }
};
//
// A txdb record that contains the disk location of a transaction and the
// locations of transactions that spend its outputs. vSpent is really only
// used as a flag, but having the location is very helpful for debugging.
//
class CTxIndex
{
public:
CDiskTxPos pos;
vector<CDiskTxPos> vSpent;
CTxIndex()
{
SetNull();
}
CTxIndex(const CDiskTxPos& posIn, unsigned int nOutputs)
{
pos = posIn;
vSpent.resize(nOutputs);
}
IMPLEMENT_SERIALIZE
(
if (!(nType & SER_GETHASH))
READWRITE(nVersion);
READWRITE(pos);
READWRITE(vSpent);
)
void SetNull()
{
pos.SetNull();
vSpent.clear();
}
bool IsNull()
{
return pos.IsNull();
}
friend bool operator==(const CTxIndex& a, const CTxIndex& b)
{
return (a.pos == b.pos &&
a.vSpent == b.vSpent);
}
friend bool operator!=(const CTxIndex& a, const CTxIndex& b)
{
return !(a == b);
}