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 #include "wallet/wallet.h"
9 #include "checkpoints.h"
11 #include "wallet/coincontrol.h"
12 #include "consensus/consensus.h"
13 #include "consensus/validation.h"
17 #include "validation.h"
19 #include "policy/fees.h"
20 #include "policy/policy.h"
21 #include "policy/rbf.h"
22 #include "primitives/block.h"
23 #include "primitives/transaction.h"
24 #include "script/script.h"
25 #include "script/sign.h"
26 #include "scheduler.h"
28 #include "txmempool.h"
30 #include "ui_interface.h"
31 #include "utilmoneystr.h"
35 #include <boost/algorithm/string/replace.hpp>
36 #include <boost/thread.hpp>
38 CWallet
* pwalletMain
= NULL
;
39 /** Transaction fee set by the user */
40 CFeeRate
payTxFee(DEFAULT_TRANSACTION_FEE
);
41 unsigned int nTxConfirmTarget
= DEFAULT_TX_CONFIRM_TARGET
;
42 bool bSpendZeroConfChange
= DEFAULT_SPEND_ZEROCONF_CHANGE
;
43 bool fWalletRbf
= DEFAULT_WALLET_RBF
;
45 const char * DEFAULT_WALLET_DAT
= "wallet.dat";
46 const uint32_t BIP32_HARDENED_KEY_LIMIT
= 0x80000000;
49 * Fees smaller than this (in satoshi) are considered zero fee (for transaction creation)
50 * Override with -mintxfee
52 CFeeRate
CWallet::minTxFee
= CFeeRate(DEFAULT_TRANSACTION_MINFEE
);
54 * If fee estimation does not have enough data to provide estimates, use this fee instead.
55 * Has no effect if not using fee estimation
56 * Override with -fallbackfee
58 CFeeRate
CWallet::fallbackFee
= CFeeRate(DEFAULT_FALLBACK_FEE
);
60 const uint256
CMerkleTx::ABANDON_HASH(uint256S("0000000000000000000000000000000000000000000000000000000000000001"));
62 /** @defgroup mapWallet
67 struct CompareValueOnly
69 bool operator()(const CInputCoin
& t1
,
70 const CInputCoin
& t2
) const
72 return t1
.txout
.nValue
< t2
.txout
.nValue
;
76 std::string
COutput::ToString() const
78 return strprintf("COutput(%s, %d, %d) [%s]", tx
->GetHash().ToString(), i
, nDepth
, FormatMoney(tx
->tx
->vout
[i
].nValue
));
81 const CWalletTx
* CWallet::GetWalletTx(const uint256
& hash
) const
84 std::map
<uint256
, CWalletTx
>::const_iterator it
= mapWallet
.find(hash
);
85 if (it
== mapWallet
.end())
90 CPubKey
CWallet::GenerateNewKey(bool internal
)
92 AssertLockHeld(cs_wallet
); // mapKeyMetadata
93 bool fCompressed
= CanSupportFeature(FEATURE_COMPRPUBKEY
); // default to compressed public keys if we want 0.6.0 wallets
97 // Create new metadata
98 int64_t nCreationTime
= GetTime();
99 CKeyMetadata
metadata(nCreationTime
);
101 // use HD key derivation if HD was enabled during wallet creation
103 DeriveNewChildKey(metadata
, secret
, (CanSupportFeature(FEATURE_HD_SPLIT
) ? internal
: false));
105 secret
.MakeNewKey(fCompressed
);
108 // Compressed public keys were introduced in version 0.6.0
110 SetMinVersion(FEATURE_COMPRPUBKEY
);
112 CPubKey pubkey
= secret
.GetPubKey();
113 assert(secret
.VerifyPubKey(pubkey
));
115 mapKeyMetadata
[pubkey
.GetID()] = metadata
;
116 UpdateTimeFirstKey(nCreationTime
);
118 if (!AddKeyPubKey(secret
, pubkey
))
119 throw std::runtime_error(std::string(__func__
) + ": AddKey failed");
123 void CWallet::DeriveNewChildKey(CKeyMetadata
& metadata
, CKey
& secret
, bool internal
)
125 // for now we use a fixed keypath scheme of m/0'/0'/k
126 CKey key
; //master key seed (256bit)
127 CExtKey masterKey
; //hd master key
128 CExtKey accountKey
; //key at m/0'
129 CExtKey chainChildKey
; //key at m/0'/0' (external) or m/0'/1' (internal)
130 CExtKey childKey
; //key at m/0'/0'/<n>'
132 // try to get the master key
133 if (!GetKey(hdChain
.masterKeyID
, key
))
134 throw std::runtime_error(std::string(__func__
) + ": Master key not found");
136 masterKey
.SetMaster(key
.begin(), key
.size());
139 // use hardened derivation (child keys >= 0x80000000 are hardened after bip32)
140 masterKey
.Derive(accountKey
, BIP32_HARDENED_KEY_LIMIT
);
142 // derive m/0'/0' (external chain) OR m/0'/1' (internal chain)
143 assert(internal
? CanSupportFeature(FEATURE_HD_SPLIT
) : true);
144 accountKey
.Derive(chainChildKey
, BIP32_HARDENED_KEY_LIMIT
+(internal
? 1 : 0));
146 // derive child key at next index, skip keys already known to the wallet
148 // always derive hardened keys
149 // childIndex | BIP32_HARDENED_KEY_LIMIT = derive childIndex in hardened child-index-range
150 // example: 1 | BIP32_HARDENED_KEY_LIMIT == 0x80000001 == 2147483649
152 chainChildKey
.Derive(childKey
, hdChain
.nInternalChainCounter
| BIP32_HARDENED_KEY_LIMIT
);
153 metadata
.hdKeypath
= "m/0'/1'/" + std::to_string(hdChain
.nInternalChainCounter
) + "'";
154 hdChain
.nInternalChainCounter
++;
157 chainChildKey
.Derive(childKey
, hdChain
.nExternalChainCounter
| BIP32_HARDENED_KEY_LIMIT
);
158 metadata
.hdKeypath
= "m/0'/0'/" + std::to_string(hdChain
.nExternalChainCounter
) + "'";
159 hdChain
.nExternalChainCounter
++;
161 } while (HaveKey(childKey
.key
.GetPubKey().GetID()));
162 secret
= childKey
.key
;
163 metadata
.hdMasterKeyID
= hdChain
.masterKeyID
;
164 // update the chain model in the database
165 if (!CWalletDB(*dbw
).WriteHDChain(hdChain
))
166 throw std::runtime_error(std::string(__func__
) + ": Writing HD chain model failed");
169 bool CWallet::AddKeyPubKey(const CKey
& secret
, const CPubKey
&pubkey
)
171 AssertLockHeld(cs_wallet
); // mapKeyMetadata
172 if (!CCryptoKeyStore::AddKeyPubKey(secret
, pubkey
))
175 // check if we need to remove from watch-only
177 script
= GetScriptForDestination(pubkey
.GetID());
178 if (HaveWatchOnly(script
))
179 RemoveWatchOnly(script
);
180 script
= GetScriptForRawPubKey(pubkey
);
181 if (HaveWatchOnly(script
))
182 RemoveWatchOnly(script
);
185 return CWalletDB(*dbw
).WriteKey(pubkey
,
187 mapKeyMetadata
[pubkey
.GetID()]);
192 bool CWallet::AddCryptedKey(const CPubKey
&vchPubKey
,
193 const std::vector
<unsigned char> &vchCryptedSecret
)
195 if (!CCryptoKeyStore::AddCryptedKey(vchPubKey
, vchCryptedSecret
))
199 if (pwalletdbEncryption
)
200 return pwalletdbEncryption
->WriteCryptedKey(vchPubKey
,
202 mapKeyMetadata
[vchPubKey
.GetID()]);
204 return CWalletDB(*dbw
).WriteCryptedKey(vchPubKey
,
206 mapKeyMetadata
[vchPubKey
.GetID()]);
211 bool CWallet::LoadKeyMetadata(const CTxDestination
& keyID
, const CKeyMetadata
&meta
)
213 AssertLockHeld(cs_wallet
); // mapKeyMetadata
214 UpdateTimeFirstKey(meta
.nCreateTime
);
215 mapKeyMetadata
[keyID
] = meta
;
219 bool CWallet::LoadCryptedKey(const CPubKey
&vchPubKey
, const std::vector
<unsigned char> &vchCryptedSecret
)
221 return CCryptoKeyStore::AddCryptedKey(vchPubKey
, vchCryptedSecret
);
224 void CWallet::UpdateTimeFirstKey(int64_t nCreateTime
)
226 AssertLockHeld(cs_wallet
);
227 if (nCreateTime
<= 1) {
228 // Cannot determine birthday information, so set the wallet birthday to
229 // the beginning of time.
231 } else if (!nTimeFirstKey
|| nCreateTime
< nTimeFirstKey
) {
232 nTimeFirstKey
= nCreateTime
;
236 bool CWallet::AddCScript(const CScript
& redeemScript
)
238 if (!CCryptoKeyStore::AddCScript(redeemScript
))
240 return CWalletDB(*dbw
).WriteCScript(Hash160(redeemScript
), redeemScript
);
243 bool CWallet::LoadCScript(const CScript
& redeemScript
)
245 /* A sanity check was added in pull #3843 to avoid adding redeemScripts
246 * that never can be redeemed. However, old wallets may still contain
247 * these. Do not add them to the wallet and warn. */
248 if (redeemScript
.size() > MAX_SCRIPT_ELEMENT_SIZE
)
250 std::string strAddr
= CBitcoinAddress(CScriptID(redeemScript
)).ToString();
251 LogPrintf("%s: Warning: This wallet contains a redeemScript of size %i which exceeds maximum size %i thus can never be redeemed. Do not use address %s.\n",
252 __func__
, redeemScript
.size(), MAX_SCRIPT_ELEMENT_SIZE
, strAddr
);
256 return CCryptoKeyStore::AddCScript(redeemScript
);
259 bool CWallet::AddWatchOnly(const CScript
& dest
)
261 if (!CCryptoKeyStore::AddWatchOnly(dest
))
263 const CKeyMetadata
& meta
= mapKeyMetadata
[CScriptID(dest
)];
264 UpdateTimeFirstKey(meta
.nCreateTime
);
265 NotifyWatchonlyChanged(true);
266 return CWalletDB(*dbw
).WriteWatchOnly(dest
, meta
);
269 bool CWallet::AddWatchOnly(const CScript
& dest
, int64_t nCreateTime
)
271 mapKeyMetadata
[CScriptID(dest
)].nCreateTime
= nCreateTime
;
272 return AddWatchOnly(dest
);
275 bool CWallet::RemoveWatchOnly(const CScript
&dest
)
277 AssertLockHeld(cs_wallet
);
278 if (!CCryptoKeyStore::RemoveWatchOnly(dest
))
280 if (!HaveWatchOnly())
281 NotifyWatchonlyChanged(false);
282 if (!CWalletDB(*dbw
).EraseWatchOnly(dest
))
288 bool CWallet::LoadWatchOnly(const CScript
&dest
)
290 return CCryptoKeyStore::AddWatchOnly(dest
);
293 bool CWallet::Unlock(const SecureString
& strWalletPassphrase
)
296 CKeyingMaterial _vMasterKey
;
300 BOOST_FOREACH(const MasterKeyMap::value_type
& pMasterKey
, mapMasterKeys
)
302 if(!crypter
.SetKeyFromPassphrase(strWalletPassphrase
, pMasterKey
.second
.vchSalt
, pMasterKey
.second
.nDeriveIterations
, pMasterKey
.second
.nDerivationMethod
))
304 if (!crypter
.Decrypt(pMasterKey
.second
.vchCryptedKey
, _vMasterKey
))
305 continue; // try another master key
306 if (CCryptoKeyStore::Unlock(_vMasterKey
))
313 bool CWallet::ChangeWalletPassphrase(const SecureString
& strOldWalletPassphrase
, const SecureString
& strNewWalletPassphrase
)
315 bool fWasLocked
= IsLocked();
322 CKeyingMaterial _vMasterKey
;
323 BOOST_FOREACH(MasterKeyMap::value_type
& pMasterKey
, mapMasterKeys
)
325 if(!crypter
.SetKeyFromPassphrase(strOldWalletPassphrase
, pMasterKey
.second
.vchSalt
, pMasterKey
.second
.nDeriveIterations
, pMasterKey
.second
.nDerivationMethod
))
327 if (!crypter
.Decrypt(pMasterKey
.second
.vchCryptedKey
, _vMasterKey
))
329 if (CCryptoKeyStore::Unlock(_vMasterKey
))
331 int64_t nStartTime
= GetTimeMillis();
332 crypter
.SetKeyFromPassphrase(strNewWalletPassphrase
, pMasterKey
.second
.vchSalt
, pMasterKey
.second
.nDeriveIterations
, pMasterKey
.second
.nDerivationMethod
);
333 pMasterKey
.second
.nDeriveIterations
= pMasterKey
.second
.nDeriveIterations
* (100 / ((double)(GetTimeMillis() - nStartTime
)));
335 nStartTime
= GetTimeMillis();
336 crypter
.SetKeyFromPassphrase(strNewWalletPassphrase
, pMasterKey
.second
.vchSalt
, pMasterKey
.second
.nDeriveIterations
, pMasterKey
.second
.nDerivationMethod
);
337 pMasterKey
.second
.nDeriveIterations
= (pMasterKey
.second
.nDeriveIterations
+ pMasterKey
.second
.nDeriveIterations
* 100 / ((double)(GetTimeMillis() - nStartTime
))) / 2;
339 if (pMasterKey
.second
.nDeriveIterations
< 25000)
340 pMasterKey
.second
.nDeriveIterations
= 25000;
342 LogPrintf("Wallet passphrase changed to an nDeriveIterations of %i\n", pMasterKey
.second
.nDeriveIterations
);
344 if (!crypter
.SetKeyFromPassphrase(strNewWalletPassphrase
, pMasterKey
.second
.vchSalt
, pMasterKey
.second
.nDeriveIterations
, pMasterKey
.second
.nDerivationMethod
))
346 if (!crypter
.Encrypt(_vMasterKey
, pMasterKey
.second
.vchCryptedKey
))
348 CWalletDB(*dbw
).WriteMasterKey(pMasterKey
.first
, pMasterKey
.second
);
359 void CWallet::SetBestChain(const CBlockLocator
& loc
)
361 CWalletDB
walletdb(*dbw
);
362 walletdb
.WriteBestBlock(loc
);
365 bool CWallet::SetMinVersion(enum WalletFeature nVersion
, CWalletDB
* pwalletdbIn
, bool fExplicit
)
367 LOCK(cs_wallet
); // nWalletVersion
368 if (nWalletVersion
>= nVersion
)
371 // when doing an explicit upgrade, if we pass the max version permitted, upgrade all the way
372 if (fExplicit
&& nVersion
> nWalletMaxVersion
)
373 nVersion
= FEATURE_LATEST
;
375 nWalletVersion
= nVersion
;
377 if (nVersion
> nWalletMaxVersion
)
378 nWalletMaxVersion
= nVersion
;
381 CWalletDB
* pwalletdb
= pwalletdbIn
? pwalletdbIn
: new CWalletDB(*dbw
);
382 if (nWalletVersion
> 40000)
383 pwalletdb
->WriteMinVersion(nWalletVersion
);
391 bool CWallet::SetMaxVersion(int nVersion
)
393 LOCK(cs_wallet
); // nWalletVersion, nWalletMaxVersion
394 // cannot downgrade below current version
395 if (nWalletVersion
> nVersion
)
398 nWalletMaxVersion
= nVersion
;
403 std::set
<uint256
> CWallet::GetConflicts(const uint256
& txid
) const
405 std::set
<uint256
> result
;
406 AssertLockHeld(cs_wallet
);
408 std::map
<uint256
, CWalletTx
>::const_iterator it
= mapWallet
.find(txid
);
409 if (it
== mapWallet
.end())
411 const CWalletTx
& wtx
= it
->second
;
413 std::pair
<TxSpends::const_iterator
, TxSpends::const_iterator
> range
;
415 BOOST_FOREACH(const CTxIn
& txin
, wtx
.tx
->vin
)
417 if (mapTxSpends
.count(txin
.prevout
) <= 1)
418 continue; // No conflict if zero or one spends
419 range
= mapTxSpends
.equal_range(txin
.prevout
);
420 for (TxSpends::const_iterator _it
= range
.first
; _it
!= range
.second
; ++_it
)
421 result
.insert(_it
->second
);
426 bool CWallet::HasWalletSpend(const uint256
& txid
) const
428 AssertLockHeld(cs_wallet
);
429 auto iter
= mapTxSpends
.lower_bound(COutPoint(txid
, 0));
430 return (iter
!= mapTxSpends
.end() && iter
->first
.hash
== txid
);
433 void CWallet::Flush(bool shutdown
)
435 dbw
->Flush(shutdown
);
438 bool CWallet::Verify()
440 if (GetBoolArg("-disablewallet", DEFAULT_DISABLE_WALLET
))
443 uiInterface
.InitMessage(_("Verifying wallet..."));
444 std::string walletFile
= GetArg("-wallet", DEFAULT_WALLET_DAT
);
446 std::string strError
;
447 if (!CWalletDB::VerifyEnvironment(walletFile
, GetDataDir().string(), strError
))
448 return InitError(strError
);
450 if (GetBoolArg("-salvagewallet", false))
452 // Recover readable keypairs:
454 if (!CWalletDB::Recover(walletFile
, (void *)&dummyWallet
, CWalletDB::RecoverKeysOnlyFilter
))
458 std::string strWarning
;
459 bool dbV
= CWalletDB::VerifyDatabaseFile(walletFile
, GetDataDir().string(), strWarning
, strError
);
460 if (!strWarning
.empty())
461 InitWarning(strWarning
);
470 void CWallet::SyncMetaData(std::pair
<TxSpends::iterator
, TxSpends::iterator
> range
)
472 // We want all the wallet transactions in range to have the same metadata as
473 // the oldest (smallest nOrderPos).
474 // So: find smallest nOrderPos:
476 int nMinOrderPos
= std::numeric_limits
<int>::max();
477 const CWalletTx
* copyFrom
= NULL
;
478 for (TxSpends::iterator it
= range
.first
; it
!= range
.second
; ++it
)
480 const uint256
& hash
= it
->second
;
481 int n
= mapWallet
[hash
].nOrderPos
;
482 if (n
< nMinOrderPos
)
485 copyFrom
= &mapWallet
[hash
];
488 // Now copy data from copyFrom to rest:
489 for (TxSpends::iterator it
= range
.first
; it
!= range
.second
; ++it
)
491 const uint256
& hash
= it
->second
;
492 CWalletTx
* copyTo
= &mapWallet
[hash
];
493 if (copyFrom
== copyTo
) continue;
494 if (!copyFrom
->IsEquivalentTo(*copyTo
)) continue;
495 copyTo
->mapValue
= copyFrom
->mapValue
;
496 copyTo
->vOrderForm
= copyFrom
->vOrderForm
;
497 // fTimeReceivedIsTxTime not copied on purpose
498 // nTimeReceived not copied on purpose
499 copyTo
->nTimeSmart
= copyFrom
->nTimeSmart
;
500 copyTo
->fFromMe
= copyFrom
->fFromMe
;
501 copyTo
->strFromAccount
= copyFrom
->strFromAccount
;
502 // nOrderPos not copied on purpose
503 // cached members not copied on purpose
508 * Outpoint is spent if any non-conflicted transaction
511 bool CWallet::IsSpent(const uint256
& hash
, unsigned int n
) const
513 const COutPoint
outpoint(hash
, n
);
514 std::pair
<TxSpends::const_iterator
, TxSpends::const_iterator
> range
;
515 range
= mapTxSpends
.equal_range(outpoint
);
517 for (TxSpends::const_iterator it
= range
.first
; it
!= range
.second
; ++it
)
519 const uint256
& wtxid
= it
->second
;
520 std::map
<uint256
, CWalletTx
>::const_iterator mit
= mapWallet
.find(wtxid
);
521 if (mit
!= mapWallet
.end()) {
522 int depth
= mit
->second
.GetDepthInMainChain();
523 if (depth
> 0 || (depth
== 0 && !mit
->second
.isAbandoned()))
524 return true; // Spent
530 void CWallet::AddToSpends(const COutPoint
& outpoint
, const uint256
& wtxid
)
532 mapTxSpends
.insert(std::make_pair(outpoint
, wtxid
));
534 std::pair
<TxSpends::iterator
, TxSpends::iterator
> range
;
535 range
= mapTxSpends
.equal_range(outpoint
);
540 void CWallet::AddToSpends(const uint256
& wtxid
)
542 assert(mapWallet
.count(wtxid
));
543 CWalletTx
& thisTx
= mapWallet
[wtxid
];
544 if (thisTx
.IsCoinBase()) // Coinbases don't spend anything!
547 BOOST_FOREACH(const CTxIn
& txin
, thisTx
.tx
->vin
)
548 AddToSpends(txin
.prevout
, wtxid
);
551 bool CWallet::EncryptWallet(const SecureString
& strWalletPassphrase
)
556 CKeyingMaterial _vMasterKey
;
558 _vMasterKey
.resize(WALLET_CRYPTO_KEY_SIZE
);
559 GetStrongRandBytes(&_vMasterKey
[0], WALLET_CRYPTO_KEY_SIZE
);
561 CMasterKey kMasterKey
;
563 kMasterKey
.vchSalt
.resize(WALLET_CRYPTO_SALT_SIZE
);
564 GetStrongRandBytes(&kMasterKey
.vchSalt
[0], WALLET_CRYPTO_SALT_SIZE
);
567 int64_t nStartTime
= GetTimeMillis();
568 crypter
.SetKeyFromPassphrase(strWalletPassphrase
, kMasterKey
.vchSalt
, 25000, kMasterKey
.nDerivationMethod
);
569 kMasterKey
.nDeriveIterations
= 2500000 / ((double)(GetTimeMillis() - nStartTime
));
571 nStartTime
= GetTimeMillis();
572 crypter
.SetKeyFromPassphrase(strWalletPassphrase
, kMasterKey
.vchSalt
, kMasterKey
.nDeriveIterations
, kMasterKey
.nDerivationMethod
);
573 kMasterKey
.nDeriveIterations
= (kMasterKey
.nDeriveIterations
+ kMasterKey
.nDeriveIterations
* 100 / ((double)(GetTimeMillis() - nStartTime
))) / 2;
575 if (kMasterKey
.nDeriveIterations
< 25000)
576 kMasterKey
.nDeriveIterations
= 25000;
578 LogPrintf("Encrypting Wallet with an nDeriveIterations of %i\n", kMasterKey
.nDeriveIterations
);
580 if (!crypter
.SetKeyFromPassphrase(strWalletPassphrase
, kMasterKey
.vchSalt
, kMasterKey
.nDeriveIterations
, kMasterKey
.nDerivationMethod
))
582 if (!crypter
.Encrypt(_vMasterKey
, kMasterKey
.vchCryptedKey
))
587 mapMasterKeys
[++nMasterKeyMaxID
] = kMasterKey
;
588 assert(!pwalletdbEncryption
);
589 pwalletdbEncryption
= new CWalletDB(*dbw
);
590 if (!pwalletdbEncryption
->TxnBegin()) {
591 delete pwalletdbEncryption
;
592 pwalletdbEncryption
= NULL
;
595 pwalletdbEncryption
->WriteMasterKey(nMasterKeyMaxID
, kMasterKey
);
597 if (!EncryptKeys(_vMasterKey
))
599 pwalletdbEncryption
->TxnAbort();
600 delete pwalletdbEncryption
;
601 // We now probably have half of our keys encrypted in memory, and half not...
602 // die and let the user reload the unencrypted wallet.
606 // Encryption was introduced in version 0.4.0
607 SetMinVersion(FEATURE_WALLETCRYPT
, pwalletdbEncryption
, true);
609 if (!pwalletdbEncryption
->TxnCommit()) {
610 delete pwalletdbEncryption
;
611 // We now have keys encrypted in memory, but not on disk...
612 // die to avoid confusion and let the user reload the unencrypted wallet.
616 delete pwalletdbEncryption
;
617 pwalletdbEncryption
= NULL
;
620 Unlock(strWalletPassphrase
);
622 // if we are using HD, replace the HD master key (seed) with a new one
624 if (!SetHDMasterKey(GenerateNewHDMasterKey())) {
632 // Need to completely rewrite the wallet file; if we don't, bdb might keep
633 // bits of the unencrypted private key in slack space in the database file.
637 NotifyStatusChanged(this);
642 DBErrors
CWallet::ReorderTransactions()
645 CWalletDB
walletdb(*dbw
);
647 // Old wallets didn't have any defined order for transactions
648 // Probably a bad idea to change the output of this
650 // First: get all CWalletTx and CAccountingEntry into a sorted-by-time multimap.
651 typedef std::pair
<CWalletTx
*, CAccountingEntry
*> TxPair
;
652 typedef std::multimap
<int64_t, TxPair
> TxItems
;
655 for (std::map
<uint256
, CWalletTx
>::iterator it
= mapWallet
.begin(); it
!= mapWallet
.end(); ++it
)
657 CWalletTx
* wtx
= &((*it
).second
);
658 txByTime
.insert(std::make_pair(wtx
->nTimeReceived
, TxPair(wtx
, (CAccountingEntry
*)0)));
660 std::list
<CAccountingEntry
> acentries
;
661 walletdb
.ListAccountCreditDebit("", acentries
);
662 BOOST_FOREACH(CAccountingEntry
& entry
, acentries
)
664 txByTime
.insert(std::make_pair(entry
.nTime
, TxPair((CWalletTx
*)0, &entry
)));
668 std::vector
<int64_t> nOrderPosOffsets
;
669 for (TxItems::iterator it
= txByTime
.begin(); it
!= txByTime
.end(); ++it
)
671 CWalletTx
*const pwtx
= (*it
).second
.first
;
672 CAccountingEntry
*const pacentry
= (*it
).second
.second
;
673 int64_t& nOrderPos
= (pwtx
!= 0) ? pwtx
->nOrderPos
: pacentry
->nOrderPos
;
677 nOrderPos
= nOrderPosNext
++;
678 nOrderPosOffsets
.push_back(nOrderPos
);
682 if (!walletdb
.WriteTx(*pwtx
))
686 if (!walletdb
.WriteAccountingEntry(pacentry
->nEntryNo
, *pacentry
))
691 int64_t nOrderPosOff
= 0;
692 BOOST_FOREACH(const int64_t& nOffsetStart
, nOrderPosOffsets
)
694 if (nOrderPos
>= nOffsetStart
)
697 nOrderPos
+= nOrderPosOff
;
698 nOrderPosNext
= std::max(nOrderPosNext
, nOrderPos
+ 1);
703 // Since we're changing the order, write it back
706 if (!walletdb
.WriteTx(*pwtx
))
710 if (!walletdb
.WriteAccountingEntry(pacentry
->nEntryNo
, *pacentry
))
714 walletdb
.WriteOrderPosNext(nOrderPosNext
);
719 int64_t CWallet::IncOrderPosNext(CWalletDB
*pwalletdb
)
721 AssertLockHeld(cs_wallet
); // nOrderPosNext
722 int64_t nRet
= nOrderPosNext
++;
724 pwalletdb
->WriteOrderPosNext(nOrderPosNext
);
726 CWalletDB(*dbw
).WriteOrderPosNext(nOrderPosNext
);
731 bool CWallet::AccountMove(std::string strFrom
, std::string strTo
, CAmount nAmount
, std::string strComment
)
733 CWalletDB
walletdb(*dbw
);
734 if (!walletdb
.TxnBegin())
737 int64_t nNow
= GetAdjustedTime();
740 CAccountingEntry debit
;
741 debit
.nOrderPos
= IncOrderPosNext(&walletdb
);
742 debit
.strAccount
= strFrom
;
743 debit
.nCreditDebit
= -nAmount
;
745 debit
.strOtherAccount
= strTo
;
746 debit
.strComment
= strComment
;
747 AddAccountingEntry(debit
, &walletdb
);
750 CAccountingEntry credit
;
751 credit
.nOrderPos
= IncOrderPosNext(&walletdb
);
752 credit
.strAccount
= strTo
;
753 credit
.nCreditDebit
= nAmount
;
755 credit
.strOtherAccount
= strFrom
;
756 credit
.strComment
= strComment
;
757 AddAccountingEntry(credit
, &walletdb
);
759 if (!walletdb
.TxnCommit())
765 bool CWallet::GetAccountPubkey(CPubKey
&pubKey
, std::string strAccount
, bool bForceNew
)
767 CWalletDB
walletdb(*dbw
);
770 walletdb
.ReadAccount(strAccount
, account
);
773 if (!account
.vchPubKey
.IsValid())
776 // Check if the current key has been used
777 CScript scriptPubKey
= GetScriptForDestination(account
.vchPubKey
.GetID());
778 for (std::map
<uint256
, CWalletTx
>::iterator it
= mapWallet
.begin();
779 it
!= mapWallet
.end() && account
.vchPubKey
.IsValid();
781 BOOST_FOREACH(const CTxOut
& txout
, (*it
).second
.tx
->vout
)
782 if (txout
.scriptPubKey
== scriptPubKey
) {
789 // Generate a new key
791 if (!GetKeyFromPool(account
.vchPubKey
, false))
794 SetAddressBook(account
.vchPubKey
.GetID(), strAccount
, "receive");
795 walletdb
.WriteAccount(strAccount
, account
);
798 pubKey
= account
.vchPubKey
;
803 void CWallet::MarkDirty()
807 BOOST_FOREACH(PAIRTYPE(const uint256
, CWalletTx
)& item
, mapWallet
)
808 item
.second
.MarkDirty();
812 bool CWallet::MarkReplaced(const uint256
& originalHash
, const uint256
& newHash
)
816 auto mi
= mapWallet
.find(originalHash
);
818 // There is a bug if MarkReplaced is not called on an existing wallet transaction.
819 assert(mi
!= mapWallet
.end());
821 CWalletTx
& wtx
= (*mi
).second
;
823 // Ensure for now that we're not overwriting data
824 assert(wtx
.mapValue
.count("replaced_by_txid") == 0);
826 wtx
.mapValue
["replaced_by_txid"] = newHash
.ToString();
828 CWalletDB
walletdb(*dbw
, "r+");
831 if (!walletdb
.WriteTx(wtx
)) {
832 LogPrintf("%s: Updating walletdb tx %s failed", __func__
, wtx
.GetHash().ToString());
836 NotifyTransactionChanged(this, originalHash
, CT_UPDATED
);
841 bool CWallet::AddToWallet(const CWalletTx
& wtxIn
, bool fFlushOnClose
)
845 CWalletDB
walletdb(*dbw
, "r+", fFlushOnClose
);
847 uint256 hash
= wtxIn
.GetHash();
849 // Inserts only if not already there, returns tx inserted or tx found
850 std::pair
<std::map
<uint256
, CWalletTx
>::iterator
, bool> ret
= mapWallet
.insert(std::make_pair(hash
, wtxIn
));
851 CWalletTx
& wtx
= (*ret
.first
).second
;
852 wtx
.BindWallet(this);
853 bool fInsertedNew
= ret
.second
;
856 wtx
.nTimeReceived
= GetAdjustedTime();
857 wtx
.nOrderPos
= IncOrderPosNext(&walletdb
);
858 wtxOrdered
.insert(std::make_pair(wtx
.nOrderPos
, TxPair(&wtx
, (CAccountingEntry
*)0)));
859 wtx
.nTimeSmart
= ComputeTimeSmart(wtx
);
863 bool fUpdated
= false;
867 if (!wtxIn
.hashUnset() && wtxIn
.hashBlock
!= wtx
.hashBlock
)
869 wtx
.hashBlock
= wtxIn
.hashBlock
;
872 // If no longer abandoned, update
873 if (wtxIn
.hashBlock
.IsNull() && wtx
.isAbandoned())
875 wtx
.hashBlock
= wtxIn
.hashBlock
;
878 if (wtxIn
.nIndex
!= -1 && (wtxIn
.nIndex
!= wtx
.nIndex
))
880 wtx
.nIndex
= wtxIn
.nIndex
;
883 if (wtxIn
.fFromMe
&& wtxIn
.fFromMe
!= wtx
.fFromMe
)
885 wtx
.fFromMe
= wtxIn
.fFromMe
;
891 LogPrintf("AddToWallet %s %s%s\n", wtxIn
.GetHash().ToString(), (fInsertedNew
? "new" : ""), (fUpdated
? "update" : ""));
894 if (fInsertedNew
|| fUpdated
)
895 if (!walletdb
.WriteTx(wtx
))
898 // Break debit/credit balance caches:
901 // Notify UI of new or updated transaction
902 NotifyTransactionChanged(this, hash
, fInsertedNew
? CT_NEW
: CT_UPDATED
);
904 // notify an external script when a wallet transaction comes in or is updated
905 std::string strCmd
= GetArg("-walletnotify", "");
907 if ( !strCmd
.empty())
909 boost::replace_all(strCmd
, "%s", wtxIn
.GetHash().GetHex());
910 boost::thread
t(runCommand
, strCmd
); // thread runs free
916 bool CWallet::LoadToWallet(const CWalletTx
& wtxIn
)
918 uint256 hash
= wtxIn
.GetHash();
920 mapWallet
[hash
] = wtxIn
;
921 CWalletTx
& wtx
= mapWallet
[hash
];
922 wtx
.BindWallet(this);
923 wtxOrdered
.insert(std::make_pair(wtx
.nOrderPos
, TxPair(&wtx
, (CAccountingEntry
*)0)));
925 BOOST_FOREACH(const CTxIn
& txin
, wtx
.tx
->vin
) {
926 if (mapWallet
.count(txin
.prevout
.hash
)) {
927 CWalletTx
& prevtx
= mapWallet
[txin
.prevout
.hash
];
928 if (prevtx
.nIndex
== -1 && !prevtx
.hashUnset()) {
929 MarkConflicted(prevtx
.hashBlock
, wtx
.GetHash());
938 * Add a transaction to the wallet, or update it. pIndex and posInBlock should
939 * be set when the transaction was known to be included in a block. When
940 * pIndex == NULL, then wallet state is not updated in AddToWallet, but
941 * notifications happen and cached balances are marked dirty.
943 * If fUpdate is true, existing transactions will be updated.
944 * TODO: One exception to this is that the abandoned state is cleared under the
945 * assumption that any further notification of a transaction that was considered
946 * abandoned is an indication that it is not safe to be considered abandoned.
947 * Abandoned state should probably be more carefully tracked via different
948 * posInBlock signals or by checking mempool presence when necessary.
950 bool CWallet::AddToWalletIfInvolvingMe(const CTransactionRef
& ptx
, const CBlockIndex
* pIndex
, int posInBlock
, bool fUpdate
)
952 const CTransaction
& tx
= *ptx
;
954 AssertLockHeld(cs_wallet
);
956 if (pIndex
!= NULL
) {
957 BOOST_FOREACH(const CTxIn
& txin
, tx
.vin
) {
958 std::pair
<TxSpends::const_iterator
, TxSpends::const_iterator
> range
= mapTxSpends
.equal_range(txin
.prevout
);
959 while (range
.first
!= range
.second
) {
960 if (range
.first
->second
!= tx
.GetHash()) {
961 LogPrintf("Transaction %s (in block %s) conflicts with wallet transaction %s (both spend %s:%i)\n", tx
.GetHash().ToString(), pIndex
->GetBlockHash().ToString(), range
.first
->second
.ToString(), range
.first
->first
.hash
.ToString(), range
.first
->first
.n
);
962 MarkConflicted(pIndex
->GetBlockHash(), range
.first
->second
);
969 bool fExisted
= mapWallet
.count(tx
.GetHash()) != 0;
970 if (fExisted
&& !fUpdate
) return false;
971 if (fExisted
|| IsMine(tx
) || IsFromMe(tx
))
973 CWalletTx
wtx(this, ptx
);
975 // Get merkle branch if transaction was found in a block
977 wtx
.SetMerkleBranch(pIndex
, posInBlock
);
979 return AddToWallet(wtx
, false);
985 bool CWallet::TransactionCanBeAbandoned(const uint256
& hashTx
) const
987 LOCK2(cs_main
, cs_wallet
);
988 const CWalletTx
* wtx
= GetWalletTx(hashTx
);
989 return wtx
&& !wtx
->isAbandoned() && wtx
->GetDepthInMainChain() <= 0 && !wtx
->InMempool();
992 bool CWallet::AbandonTransaction(const uint256
& hashTx
)
994 LOCK2(cs_main
, cs_wallet
);
996 CWalletDB
walletdb(*dbw
, "r+");
998 std::set
<uint256
> todo
;
999 std::set
<uint256
> done
;
1001 // Can't mark abandoned if confirmed or in mempool
1002 assert(mapWallet
.count(hashTx
));
1003 CWalletTx
& origtx
= mapWallet
[hashTx
];
1004 if (origtx
.GetDepthInMainChain() > 0 || origtx
.InMempool()) {
1008 todo
.insert(hashTx
);
1010 while (!todo
.empty()) {
1011 uint256 now
= *todo
.begin();
1014 assert(mapWallet
.count(now
));
1015 CWalletTx
& wtx
= mapWallet
[now
];
1016 int currentconfirm
= wtx
.GetDepthInMainChain();
1017 // If the orig tx was not in block, none of its spends can be
1018 assert(currentconfirm
<= 0);
1019 // if (currentconfirm < 0) {Tx and spends are already conflicted, no need to abandon}
1020 if (currentconfirm
== 0 && !wtx
.isAbandoned()) {
1021 // If the orig tx was not in block/mempool, none of its spends can be in mempool
1022 assert(!wtx
.InMempool());
1026 walletdb
.WriteTx(wtx
);
1027 NotifyTransactionChanged(this, wtx
.GetHash(), CT_UPDATED
);
1028 // Iterate over all its outputs, and mark transactions in the wallet that spend them abandoned too
1029 TxSpends::const_iterator iter
= mapTxSpends
.lower_bound(COutPoint(hashTx
, 0));
1030 while (iter
!= mapTxSpends
.end() && iter
->first
.hash
== now
) {
1031 if (!done
.count(iter
->second
)) {
1032 todo
.insert(iter
->second
);
1036 // If a transaction changes 'conflicted' state, that changes the balance
1037 // available of the outputs it spends. So force those to be recomputed
1038 BOOST_FOREACH(const CTxIn
& txin
, wtx
.tx
->vin
)
1040 if (mapWallet
.count(txin
.prevout
.hash
))
1041 mapWallet
[txin
.prevout
.hash
].MarkDirty();
1049 void CWallet::MarkConflicted(const uint256
& hashBlock
, const uint256
& hashTx
)
1051 LOCK2(cs_main
, cs_wallet
);
1053 int conflictconfirms
= 0;
1054 if (mapBlockIndex
.count(hashBlock
)) {
1055 CBlockIndex
* pindex
= mapBlockIndex
[hashBlock
];
1056 if (chainActive
.Contains(pindex
)) {
1057 conflictconfirms
= -(chainActive
.Height() - pindex
->nHeight
+ 1);
1060 // If number of conflict confirms cannot be determined, this means
1061 // that the block is still unknown or not yet part of the main chain,
1062 // for example when loading the wallet during a reindex. Do nothing in that
1064 if (conflictconfirms
>= 0)
1067 // Do not flush the wallet here for performance reasons
1068 CWalletDB
walletdb(*dbw
, "r+", false);
1070 std::set
<uint256
> todo
;
1071 std::set
<uint256
> done
;
1073 todo
.insert(hashTx
);
1075 while (!todo
.empty()) {
1076 uint256 now
= *todo
.begin();
1079 assert(mapWallet
.count(now
));
1080 CWalletTx
& wtx
= mapWallet
[now
];
1081 int currentconfirm
= wtx
.GetDepthInMainChain();
1082 if (conflictconfirms
< currentconfirm
) {
1083 // Block is 'more conflicted' than current confirm; update.
1084 // Mark transaction as conflicted with this block.
1086 wtx
.hashBlock
= hashBlock
;
1088 walletdb
.WriteTx(wtx
);
1089 // Iterate over all its outputs, and mark transactions in the wallet that spend them conflicted too
1090 TxSpends::const_iterator iter
= mapTxSpends
.lower_bound(COutPoint(now
, 0));
1091 while (iter
!= mapTxSpends
.end() && iter
->first
.hash
== now
) {
1092 if (!done
.count(iter
->second
)) {
1093 todo
.insert(iter
->second
);
1097 // If a transaction changes 'conflicted' state, that changes the balance
1098 // available of the outputs it spends. So force those to be recomputed
1099 BOOST_FOREACH(const CTxIn
& txin
, wtx
.tx
->vin
)
1101 if (mapWallet
.count(txin
.prevout
.hash
))
1102 mapWallet
[txin
.prevout
.hash
].MarkDirty();
1108 void CWallet::SyncTransaction(const CTransactionRef
& ptx
, const CBlockIndex
*pindex
, int posInBlock
) {
1109 const CTransaction
& tx
= *ptx
;
1111 if (!AddToWalletIfInvolvingMe(ptx
, pindex
, posInBlock
, true))
1112 return; // Not one of ours
1114 // If a transaction changes 'conflicted' state, that changes the balance
1115 // available of the outputs it spends. So force those to be
1116 // recomputed, also:
1117 BOOST_FOREACH(const CTxIn
& txin
, tx
.vin
)
1119 if (mapWallet
.count(txin
.prevout
.hash
))
1120 mapWallet
[txin
.prevout
.hash
].MarkDirty();
1124 void CWallet::TransactionAddedToMempool(const CTransactionRef
& ptx
) {
1125 LOCK2(cs_main
, cs_wallet
);
1126 SyncTransaction(ptx
);
1129 void CWallet::BlockConnected(const std::shared_ptr
<const CBlock
>& pblock
, const CBlockIndex
*pindex
, const std::vector
<CTransactionRef
>& vtxConflicted
) {
1130 LOCK2(cs_main
, cs_wallet
);
1131 // TODO: Temporarily ensure that mempool removals are notified before
1132 // connected transactions. This shouldn't matter, but the abandoned
1133 // state of transactions in our wallet is currently cleared when we
1134 // receive another notification and there is a race condition where
1135 // notification of a connected conflict might cause an outside process
1136 // to abandon a transaction and then have it inadvertently cleared by
1137 // the notification that the conflicted transaction was evicted.
1139 for (const CTransactionRef
& ptx
: vtxConflicted
) {
1140 SyncTransaction(ptx
);
1142 for (size_t i
= 0; i
< pblock
->vtx
.size(); i
++) {
1143 SyncTransaction(pblock
->vtx
[i
], pindex
, i
);
1147 void CWallet::BlockDisconnected(const std::shared_ptr
<const CBlock
>& pblock
) {
1148 LOCK2(cs_main
, cs_wallet
);
1150 for (const CTransactionRef
& ptx
: pblock
->vtx
) {
1151 SyncTransaction(ptx
);
1157 isminetype
CWallet::IsMine(const CTxIn
&txin
) const
1161 std::map
<uint256
, CWalletTx
>::const_iterator mi
= mapWallet
.find(txin
.prevout
.hash
);
1162 if (mi
!= mapWallet
.end())
1164 const CWalletTx
& prev
= (*mi
).second
;
1165 if (txin
.prevout
.n
< prev
.tx
->vout
.size())
1166 return IsMine(prev
.tx
->vout
[txin
.prevout
.n
]);
1172 // Note that this function doesn't distinguish between a 0-valued input,
1173 // and a not-"is mine" (according to the filter) input.
1174 CAmount
CWallet::GetDebit(const CTxIn
&txin
, const isminefilter
& filter
) const
1178 std::map
<uint256
, CWalletTx
>::const_iterator mi
= mapWallet
.find(txin
.prevout
.hash
);
1179 if (mi
!= mapWallet
.end())
1181 const CWalletTx
& prev
= (*mi
).second
;
1182 if (txin
.prevout
.n
< prev
.tx
->vout
.size())
1183 if (IsMine(prev
.tx
->vout
[txin
.prevout
.n
]) & filter
)
1184 return prev
.tx
->vout
[txin
.prevout
.n
].nValue
;
1190 isminetype
CWallet::IsMine(const CTxOut
& txout
) const
1192 return ::IsMine(*this, txout
.scriptPubKey
);
1195 CAmount
CWallet::GetCredit(const CTxOut
& txout
, const isminefilter
& filter
) const
1197 if (!MoneyRange(txout
.nValue
))
1198 throw std::runtime_error(std::string(__func__
) + ": value out of range");
1199 return ((IsMine(txout
) & filter
) ? txout
.nValue
: 0);
1202 bool CWallet::IsChange(const CTxOut
& txout
) const
1204 // TODO: fix handling of 'change' outputs. The assumption is that any
1205 // payment to a script that is ours, but is not in the address book
1206 // is change. That assumption is likely to break when we implement multisignature
1207 // wallets that return change back into a multi-signature-protected address;
1208 // a better way of identifying which outputs are 'the send' and which are
1209 // 'the change' will need to be implemented (maybe extend CWalletTx to remember
1210 // which output, if any, was change).
1211 if (::IsMine(*this, txout
.scriptPubKey
))
1213 CTxDestination address
;
1214 if (!ExtractDestination(txout
.scriptPubKey
, address
))
1218 if (!mapAddressBook
.count(address
))
1224 CAmount
CWallet::GetChange(const CTxOut
& txout
) const
1226 if (!MoneyRange(txout
.nValue
))
1227 throw std::runtime_error(std::string(__func__
) + ": value out of range");
1228 return (IsChange(txout
) ? txout
.nValue
: 0);
1231 bool CWallet::IsMine(const CTransaction
& tx
) const
1233 BOOST_FOREACH(const CTxOut
& txout
, tx
.vout
)
1239 bool CWallet::IsFromMe(const CTransaction
& tx
) const
1241 return (GetDebit(tx
, ISMINE_ALL
) > 0);
1244 CAmount
CWallet::GetDebit(const CTransaction
& tx
, const isminefilter
& filter
) const
1247 BOOST_FOREACH(const CTxIn
& txin
, tx
.vin
)
1249 nDebit
+= GetDebit(txin
, filter
);
1250 if (!MoneyRange(nDebit
))
1251 throw std::runtime_error(std::string(__func__
) + ": value out of range");
1256 bool CWallet::IsAllFromMe(const CTransaction
& tx
, const isminefilter
& filter
) const
1260 BOOST_FOREACH(const CTxIn
& txin
, tx
.vin
)
1262 auto mi
= mapWallet
.find(txin
.prevout
.hash
);
1263 if (mi
== mapWallet
.end())
1264 return false; // any unknown inputs can't be from us
1266 const CWalletTx
& prev
= (*mi
).second
;
1268 if (txin
.prevout
.n
>= prev
.tx
->vout
.size())
1269 return false; // invalid input!
1271 if (!(IsMine(prev
.tx
->vout
[txin
.prevout
.n
]) & filter
))
1277 CAmount
CWallet::GetCredit(const CTransaction
& tx
, const isminefilter
& filter
) const
1279 CAmount nCredit
= 0;
1280 BOOST_FOREACH(const CTxOut
& txout
, tx
.vout
)
1282 nCredit
+= GetCredit(txout
, filter
);
1283 if (!MoneyRange(nCredit
))
1284 throw std::runtime_error(std::string(__func__
) + ": value out of range");
1289 CAmount
CWallet::GetChange(const CTransaction
& tx
) const
1291 CAmount nChange
= 0;
1292 BOOST_FOREACH(const CTxOut
& txout
, tx
.vout
)
1294 nChange
+= GetChange(txout
);
1295 if (!MoneyRange(nChange
))
1296 throw std::runtime_error(std::string(__func__
) + ": value out of range");
1301 CPubKey
CWallet::GenerateNewHDMasterKey()
1304 key
.MakeNewKey(true);
1306 int64_t nCreationTime
= GetTime();
1307 CKeyMetadata
metadata(nCreationTime
);
1309 // calculate the pubkey
1310 CPubKey pubkey
= key
.GetPubKey();
1311 assert(key
.VerifyPubKey(pubkey
));
1313 // set the hd keypath to "m" -> Master, refers the masterkeyid to itself
1314 metadata
.hdKeypath
= "m";
1315 metadata
.hdMasterKeyID
= pubkey
.GetID();
1320 // mem store the metadata
1321 mapKeyMetadata
[pubkey
.GetID()] = metadata
;
1323 // write the key&metadata to the database
1324 if (!AddKeyPubKey(key
, pubkey
))
1325 throw std::runtime_error(std::string(__func__
) + ": AddKeyPubKey failed");
1331 bool CWallet::SetHDMasterKey(const CPubKey
& pubkey
)
1334 // store the keyid (hash160) together with
1335 // the child index counter in the database
1336 // as a hdchain object
1337 CHDChain newHdChain
;
1338 newHdChain
.nVersion
= CanSupportFeature(FEATURE_HD_SPLIT
) ? CHDChain::VERSION_HD_CHAIN_SPLIT
: CHDChain::VERSION_HD_BASE
;
1339 newHdChain
.masterKeyID
= pubkey
.GetID();
1340 SetHDChain(newHdChain
, false);
1345 bool CWallet::SetHDChain(const CHDChain
& chain
, bool memonly
)
1348 if (!memonly
&& !CWalletDB(*dbw
).WriteHDChain(chain
))
1349 throw std::runtime_error(std::string(__func__
) + ": writing chain failed");
1355 bool CWallet::IsHDEnabled() const
1357 return !hdChain
.masterKeyID
.IsNull();
1360 int64_t CWalletTx::GetTxTime() const
1362 int64_t n
= nTimeSmart
;
1363 return n
? n
: nTimeReceived
;
1366 int CWalletTx::GetRequestCount() const
1368 // Returns -1 if it wasn't being tracked
1371 LOCK(pwallet
->cs_wallet
);
1377 std::map
<uint256
, int>::const_iterator mi
= pwallet
->mapRequestCount
.find(hashBlock
);
1378 if (mi
!= pwallet
->mapRequestCount
.end())
1379 nRequests
= (*mi
).second
;
1384 // Did anyone request this transaction?
1385 std::map
<uint256
, int>::const_iterator mi
= pwallet
->mapRequestCount
.find(GetHash());
1386 if (mi
!= pwallet
->mapRequestCount
.end())
1388 nRequests
= (*mi
).second
;
1390 // How about the block it's in?
1391 if (nRequests
== 0 && !hashUnset())
1393 std::map
<uint256
, int>::const_iterator _mi
= pwallet
->mapRequestCount
.find(hashBlock
);
1394 if (_mi
!= pwallet
->mapRequestCount
.end())
1395 nRequests
= (*_mi
).second
;
1397 nRequests
= 1; // If it's in someone else's block it must have got out
1405 void CWalletTx::GetAmounts(std::list
<COutputEntry
>& listReceived
,
1406 std::list
<COutputEntry
>& listSent
, CAmount
& nFee
, std::string
& strSentAccount
, const isminefilter
& filter
) const
1409 listReceived
.clear();
1411 strSentAccount
= strFromAccount
;
1414 CAmount nDebit
= GetDebit(filter
);
1415 if (nDebit
> 0) // debit>0 means we signed/sent this transaction
1417 CAmount nValueOut
= tx
->GetValueOut();
1418 nFee
= nDebit
- nValueOut
;
1422 for (unsigned int i
= 0; i
< tx
->vout
.size(); ++i
)
1424 const CTxOut
& txout
= tx
->vout
[i
];
1425 isminetype fIsMine
= pwallet
->IsMine(txout
);
1426 // Only need to handle txouts if AT LEAST one of these is true:
1427 // 1) they debit from us (sent)
1428 // 2) the output is to us (received)
1431 // Don't report 'change' txouts
1432 if (pwallet
->IsChange(txout
))
1435 else if (!(fIsMine
& filter
))
1438 // In either case, we need to get the destination address
1439 CTxDestination address
;
1441 if (!ExtractDestination(txout
.scriptPubKey
, address
) && !txout
.scriptPubKey
.IsUnspendable())
1443 LogPrintf("CWalletTx::GetAmounts: Unknown transaction type found, txid %s\n",
1444 this->GetHash().ToString());
1445 address
= CNoDestination();
1448 COutputEntry output
= {address
, txout
.nValue
, (int)i
};
1450 // If we are debited by the transaction, add the output as a "sent" entry
1452 listSent
.push_back(output
);
1454 // If we are receiving the output, add it as a "received" entry
1455 if (fIsMine
& filter
)
1456 listReceived
.push_back(output
);
1462 * Scan the block chain (starting in pindexStart) for transactions
1463 * from or to us. If fUpdate is true, found transactions that already
1464 * exist in the wallet will be updated.
1466 * Returns null if scan was successful. Otherwise, if a complete rescan was not
1467 * possible (due to pruning or corruption), returns pointer to the most recent
1468 * block that could not be scanned.
1470 CBlockIndex
* CWallet::ScanForWalletTransactions(CBlockIndex
* pindexStart
, bool fUpdate
)
1472 int64_t nNow
= GetTime();
1473 const CChainParams
& chainParams
= Params();
1475 CBlockIndex
* pindex
= pindexStart
;
1476 CBlockIndex
* ret
= nullptr;
1478 LOCK2(cs_main
, cs_wallet
);
1479 fAbortRescan
= false;
1480 fScanningWallet
= true;
1482 // no need to read and scan block, if block was created before
1483 // our wallet birthday (as adjusted for block time variability)
1484 while (pindex
&& nTimeFirstKey
&& (pindex
->GetBlockTime() < (nTimeFirstKey
- TIMESTAMP_WINDOW
)))
1485 pindex
= chainActive
.Next(pindex
);
1487 ShowProgress(_("Rescanning..."), 0); // show rescan progress in GUI as dialog or on splashscreen, if -rescan on startup
1488 double dProgressStart
= GuessVerificationProgress(chainParams
.TxData(), pindex
);
1489 double dProgressTip
= GuessVerificationProgress(chainParams
.TxData(), chainActive
.Tip());
1490 while (pindex
&& !fAbortRescan
)
1492 if (pindex
->nHeight
% 100 == 0 && dProgressTip
- dProgressStart
> 0.0)
1493 ShowProgress(_("Rescanning..."), std::max(1, std::min(99, (int)((GuessVerificationProgress(chainParams
.TxData(), pindex
) - dProgressStart
) / (dProgressTip
- dProgressStart
) * 100))));
1494 if (GetTime() >= nNow
+ 60) {
1496 LogPrintf("Still rescanning. At block %d. Progress=%f\n", pindex
->nHeight
, GuessVerificationProgress(chainParams
.TxData(), pindex
));
1500 if (ReadBlockFromDisk(block
, pindex
, Params().GetConsensus())) {
1501 for (size_t posInBlock
= 0; posInBlock
< block
.vtx
.size(); ++posInBlock
) {
1502 AddToWalletIfInvolvingMe(block
.vtx
[posInBlock
], pindex
, posInBlock
, fUpdate
);
1507 pindex
= chainActive
.Next(pindex
);
1509 if (pindex
&& fAbortRescan
) {
1510 LogPrintf("Rescan aborted at block %d. Progress=%f\n", pindex
->nHeight
, GuessVerificationProgress(chainParams
.TxData(), pindex
));
1512 ShowProgress(_("Rescanning..."), 100); // hide progress dialog in GUI
1514 fScanningWallet
= false;
1519 void CWallet::ReacceptWalletTransactions()
1521 // If transactions aren't being broadcasted, don't let them into local mempool either
1522 if (!fBroadcastTransactions
)
1524 LOCK2(cs_main
, cs_wallet
);
1525 std::map
<int64_t, CWalletTx
*> mapSorted
;
1527 // Sort pending wallet transactions based on their initial wallet insertion order
1528 BOOST_FOREACH(PAIRTYPE(const uint256
, CWalletTx
)& item
, mapWallet
)
1530 const uint256
& wtxid
= item
.first
;
1531 CWalletTx
& wtx
= item
.second
;
1532 assert(wtx
.GetHash() == wtxid
);
1534 int nDepth
= wtx
.GetDepthInMainChain();
1536 if (!wtx
.IsCoinBase() && (nDepth
== 0 && !wtx
.isAbandoned())) {
1537 mapSorted
.insert(std::make_pair(wtx
.nOrderPos
, &wtx
));
1541 // Try to add wallet transactions to memory pool
1542 BOOST_FOREACH(PAIRTYPE(const int64_t, CWalletTx
*)& item
, mapSorted
)
1544 CWalletTx
& wtx
= *(item
.second
);
1547 CValidationState state
;
1548 wtx
.AcceptToMemoryPool(maxTxFee
, state
);
1552 bool CWalletTx::RelayWalletTransaction(CConnman
* connman
)
1554 assert(pwallet
->GetBroadcastTransactions());
1555 if (!IsCoinBase() && !isAbandoned() && GetDepthInMainChain() == 0)
1557 CValidationState state
;
1558 /* GetDepthInMainChain already catches known conflicts. */
1559 if (InMempool() || AcceptToMemoryPool(maxTxFee
, state
)) {
1560 LogPrintf("Relaying wtx %s\n", GetHash().ToString());
1562 CInv
inv(MSG_TX
, GetHash());
1563 connman
->ForEachNode([&inv
](CNode
* pnode
)
1565 pnode
->PushInventory(inv
);
1574 std::set
<uint256
> CWalletTx::GetConflicts() const
1576 std::set
<uint256
> result
;
1577 if (pwallet
!= NULL
)
1579 uint256 myHash
= GetHash();
1580 result
= pwallet
->GetConflicts(myHash
);
1581 result
.erase(myHash
);
1586 CAmount
CWalletTx::GetDebit(const isminefilter
& filter
) const
1588 if (tx
->vin
.empty())
1592 if(filter
& ISMINE_SPENDABLE
)
1595 debit
+= nDebitCached
;
1598 nDebitCached
= pwallet
->GetDebit(*this, ISMINE_SPENDABLE
);
1599 fDebitCached
= true;
1600 debit
+= nDebitCached
;
1603 if(filter
& ISMINE_WATCH_ONLY
)
1605 if(fWatchDebitCached
)
1606 debit
+= nWatchDebitCached
;
1609 nWatchDebitCached
= pwallet
->GetDebit(*this, ISMINE_WATCH_ONLY
);
1610 fWatchDebitCached
= true;
1611 debit
+= nWatchDebitCached
;
1617 CAmount
CWalletTx::GetCredit(const isminefilter
& filter
) const
1619 // Must wait until coinbase is safely deep enough in the chain before valuing it
1620 if (IsCoinBase() && GetBlocksToMaturity() > 0)
1624 if (filter
& ISMINE_SPENDABLE
)
1626 // GetBalance can assume transactions in mapWallet won't change
1628 credit
+= nCreditCached
;
1631 nCreditCached
= pwallet
->GetCredit(*this, ISMINE_SPENDABLE
);
1632 fCreditCached
= true;
1633 credit
+= nCreditCached
;
1636 if (filter
& ISMINE_WATCH_ONLY
)
1638 if (fWatchCreditCached
)
1639 credit
+= nWatchCreditCached
;
1642 nWatchCreditCached
= pwallet
->GetCredit(*this, ISMINE_WATCH_ONLY
);
1643 fWatchCreditCached
= true;
1644 credit
+= nWatchCreditCached
;
1650 CAmount
CWalletTx::GetImmatureCredit(bool fUseCache
) const
1652 if (IsCoinBase() && GetBlocksToMaturity() > 0 && IsInMainChain())
1654 if (fUseCache
&& fImmatureCreditCached
)
1655 return nImmatureCreditCached
;
1656 nImmatureCreditCached
= pwallet
->GetCredit(*this, ISMINE_SPENDABLE
);
1657 fImmatureCreditCached
= true;
1658 return nImmatureCreditCached
;
1664 CAmount
CWalletTx::GetAvailableCredit(bool fUseCache
) const
1669 // Must wait until coinbase is safely deep enough in the chain before valuing it
1670 if (IsCoinBase() && GetBlocksToMaturity() > 0)
1673 if (fUseCache
&& fAvailableCreditCached
)
1674 return nAvailableCreditCached
;
1676 CAmount nCredit
= 0;
1677 uint256 hashTx
= GetHash();
1678 for (unsigned int i
= 0; i
< tx
->vout
.size(); i
++)
1680 if (!pwallet
->IsSpent(hashTx
, i
))
1682 const CTxOut
&txout
= tx
->vout
[i
];
1683 nCredit
+= pwallet
->GetCredit(txout
, ISMINE_SPENDABLE
);
1684 if (!MoneyRange(nCredit
))
1685 throw std::runtime_error("CWalletTx::GetAvailableCredit() : value out of range");
1689 nAvailableCreditCached
= nCredit
;
1690 fAvailableCreditCached
= true;
1694 CAmount
CWalletTx::GetImmatureWatchOnlyCredit(const bool& fUseCache
) const
1696 if (IsCoinBase() && GetBlocksToMaturity() > 0 && IsInMainChain())
1698 if (fUseCache
&& fImmatureWatchCreditCached
)
1699 return nImmatureWatchCreditCached
;
1700 nImmatureWatchCreditCached
= pwallet
->GetCredit(*this, ISMINE_WATCH_ONLY
);
1701 fImmatureWatchCreditCached
= true;
1702 return nImmatureWatchCreditCached
;
1708 CAmount
CWalletTx::GetAvailableWatchOnlyCredit(const bool& fUseCache
) const
1713 // Must wait until coinbase is safely deep enough in the chain before valuing it
1714 if (IsCoinBase() && GetBlocksToMaturity() > 0)
1717 if (fUseCache
&& fAvailableWatchCreditCached
)
1718 return nAvailableWatchCreditCached
;
1720 CAmount nCredit
= 0;
1721 for (unsigned int i
= 0; i
< tx
->vout
.size(); i
++)
1723 if (!pwallet
->IsSpent(GetHash(), i
))
1725 const CTxOut
&txout
= tx
->vout
[i
];
1726 nCredit
+= pwallet
->GetCredit(txout
, ISMINE_WATCH_ONLY
);
1727 if (!MoneyRange(nCredit
))
1728 throw std::runtime_error("CWalletTx::GetAvailableCredit() : value out of range");
1732 nAvailableWatchCreditCached
= nCredit
;
1733 fAvailableWatchCreditCached
= true;
1737 CAmount
CWalletTx::GetChange() const
1740 return nChangeCached
;
1741 nChangeCached
= pwallet
->GetChange(*this);
1742 fChangeCached
= true;
1743 return nChangeCached
;
1746 bool CWalletTx::InMempool() const
1749 return mempool
.exists(GetHash());
1752 bool CWalletTx::IsTrusted() const
1754 // Quick answer in most cases
1755 if (!CheckFinalTx(*this))
1757 int nDepth
= GetDepthInMainChain();
1762 if (!bSpendZeroConfChange
|| !IsFromMe(ISMINE_ALL
)) // using wtx's cached debit
1765 // Don't trust unconfirmed transactions from us unless they are in the mempool.
1769 // Trusted if all inputs are from us and are in the mempool:
1770 BOOST_FOREACH(const CTxIn
& txin
, tx
->vin
)
1772 // Transactions not sent by us: not trusted
1773 const CWalletTx
* parent
= pwallet
->GetWalletTx(txin
.prevout
.hash
);
1776 const CTxOut
& parentOut
= parent
->tx
->vout
[txin
.prevout
.n
];
1777 if (pwallet
->IsMine(parentOut
) != ISMINE_SPENDABLE
)
1783 bool CWalletTx::IsEquivalentTo(const CWalletTx
& _tx
) const
1785 CMutableTransaction tx1
= *this->tx
;
1786 CMutableTransaction tx2
= *_tx
.tx
;
1787 for (auto& txin
: tx1
.vin
) txin
.scriptSig
= CScript();
1788 for (auto& txin
: tx2
.vin
) txin
.scriptSig
= CScript();
1789 return CTransaction(tx1
) == CTransaction(tx2
);
1792 std::vector
<uint256
> CWallet::ResendWalletTransactionsBefore(int64_t nTime
, CConnman
* connman
)
1794 std::vector
<uint256
> result
;
1797 // Sort them in chronological order
1798 std::multimap
<unsigned int, CWalletTx
*> mapSorted
;
1799 BOOST_FOREACH(PAIRTYPE(const uint256
, CWalletTx
)& item
, mapWallet
)
1801 CWalletTx
& wtx
= item
.second
;
1802 // Don't rebroadcast if newer than nTime:
1803 if (wtx
.nTimeReceived
> nTime
)
1805 mapSorted
.insert(std::make_pair(wtx
.nTimeReceived
, &wtx
));
1807 BOOST_FOREACH(PAIRTYPE(const unsigned int, CWalletTx
*)& item
, mapSorted
)
1809 CWalletTx
& wtx
= *item
.second
;
1810 if (wtx
.RelayWalletTransaction(connman
))
1811 result
.push_back(wtx
.GetHash());
1816 void CWallet::ResendWalletTransactions(int64_t nBestBlockTime
, CConnman
* connman
)
1818 // Do this infrequently and randomly to avoid giving away
1819 // that these are our transactions.
1820 if (GetTime() < nNextResend
|| !fBroadcastTransactions
)
1822 bool fFirst
= (nNextResend
== 0);
1823 nNextResend
= GetTime() + GetRand(30 * 60);
1827 // Only do it if there's been a new block since last time
1828 if (nBestBlockTime
< nLastResend
)
1830 nLastResend
= GetTime();
1832 // Rebroadcast unconfirmed txes older than 5 minutes before the last
1834 std::vector
<uint256
> relayed
= ResendWalletTransactionsBefore(nBestBlockTime
-5*60, connman
);
1835 if (!relayed
.empty())
1836 LogPrintf("%s: rebroadcast %u unconfirmed transactions\n", __func__
, relayed
.size());
1839 /** @} */ // end of mapWallet
1844 /** @defgroup Actions
1850 CAmount
CWallet::GetBalance() const
1854 LOCK2(cs_main
, cs_wallet
);
1855 for (std::map
<uint256
, CWalletTx
>::const_iterator it
= mapWallet
.begin(); it
!= mapWallet
.end(); ++it
)
1857 const CWalletTx
* pcoin
= &(*it
).second
;
1858 if (pcoin
->IsTrusted())
1859 nTotal
+= pcoin
->GetAvailableCredit();
1866 CAmount
CWallet::GetUnconfirmedBalance() const
1870 LOCK2(cs_main
, cs_wallet
);
1871 for (std::map
<uint256
, CWalletTx
>::const_iterator it
= mapWallet
.begin(); it
!= mapWallet
.end(); ++it
)
1873 const CWalletTx
* pcoin
= &(*it
).second
;
1874 if (!pcoin
->IsTrusted() && pcoin
->GetDepthInMainChain() == 0 && pcoin
->InMempool())
1875 nTotal
+= pcoin
->GetAvailableCredit();
1881 CAmount
CWallet::GetImmatureBalance() const
1885 LOCK2(cs_main
, cs_wallet
);
1886 for (std::map
<uint256
, CWalletTx
>::const_iterator it
= mapWallet
.begin(); it
!= mapWallet
.end(); ++it
)
1888 const CWalletTx
* pcoin
= &(*it
).second
;
1889 nTotal
+= pcoin
->GetImmatureCredit();
1895 CAmount
CWallet::GetWatchOnlyBalance() const
1899 LOCK2(cs_main
, cs_wallet
);
1900 for (std::map
<uint256
, CWalletTx
>::const_iterator it
= mapWallet
.begin(); it
!= mapWallet
.end(); ++it
)
1902 const CWalletTx
* pcoin
= &(*it
).second
;
1903 if (pcoin
->IsTrusted())
1904 nTotal
+= pcoin
->GetAvailableWatchOnlyCredit();
1911 CAmount
CWallet::GetUnconfirmedWatchOnlyBalance() const
1915 LOCK2(cs_main
, cs_wallet
);
1916 for (std::map
<uint256
, CWalletTx
>::const_iterator it
= mapWallet
.begin(); it
!= mapWallet
.end(); ++it
)
1918 const CWalletTx
* pcoin
= &(*it
).second
;
1919 if (!pcoin
->IsTrusted() && pcoin
->GetDepthInMainChain() == 0 && pcoin
->InMempool())
1920 nTotal
+= pcoin
->GetAvailableWatchOnlyCredit();
1926 CAmount
CWallet::GetImmatureWatchOnlyBalance() const
1930 LOCK2(cs_main
, cs_wallet
);
1931 for (std::map
<uint256
, CWalletTx
>::const_iterator it
= mapWallet
.begin(); it
!= mapWallet
.end(); ++it
)
1933 const CWalletTx
* pcoin
= &(*it
).second
;
1934 nTotal
+= pcoin
->GetImmatureWatchOnlyCredit();
1940 // Calculate total balance in a different way from GetBalance. The biggest
1941 // difference is that GetBalance sums up all unspent TxOuts paying to the
1942 // wallet, while this sums up both spent and unspent TxOuts paying to the
1943 // wallet, and then subtracts the values of TxIns spending from the wallet. This
1944 // also has fewer restrictions on which unconfirmed transactions are considered
1946 CAmount
CWallet::GetLegacyBalance(const isminefilter
& filter
, int minDepth
, const std::string
* account
) const
1948 LOCK2(cs_main
, cs_wallet
);
1950 CAmount balance
= 0;
1951 for (const auto& entry
: mapWallet
) {
1952 const CWalletTx
& wtx
= entry
.second
;
1953 const int depth
= wtx
.GetDepthInMainChain();
1954 if (depth
< 0 || !CheckFinalTx(*wtx
.tx
) || wtx
.GetBlocksToMaturity() > 0) {
1958 // Loop through tx outputs and add incoming payments. For outgoing txs,
1959 // treat change outputs specially, as part of the amount debited.
1960 CAmount debit
= wtx
.GetDebit(filter
);
1961 const bool outgoing
= debit
> 0;
1962 for (const CTxOut
& out
: wtx
.tx
->vout
) {
1963 if (outgoing
&& IsChange(out
)) {
1964 debit
-= out
.nValue
;
1965 } else if (IsMine(out
) & filter
&& depth
>= minDepth
&& (!account
|| *account
== GetAccountName(out
.scriptPubKey
))) {
1966 balance
+= out
.nValue
;
1970 // For outgoing txs, subtract amount debited.
1971 if (outgoing
&& (!account
|| *account
== wtx
.strFromAccount
)) {
1977 balance
+= CWalletDB(*dbw
).GetAccountCreditDebit(*account
);
1983 CAmount
CWallet::GetAvailableBalance(const CCoinControl
* coinControl
) const
1985 LOCK2(cs_main
, cs_wallet
);
1987 CAmount balance
= 0;
1988 std::vector
<COutput
> vCoins
;
1989 AvailableCoins(vCoins
, true, coinControl
);
1990 for (const COutput
& out
: vCoins
) {
1991 if (out
.fSpendable
) {
1992 balance
+= out
.tx
->tx
->vout
[out
.i
].nValue
;
1998 void CWallet::AvailableCoins(std::vector
<COutput
> &vCoins
, bool fOnlySafe
, const CCoinControl
*coinControl
, const CAmount
&nMinimumAmount
, const CAmount
&nMaximumAmount
, const CAmount
&nMinimumSumAmount
, const uint64_t &nMaximumCount
, const int &nMinDepth
, const int &nMaxDepth
) const
2003 LOCK2(cs_main
, cs_wallet
);
2007 for (std::map
<uint256
, CWalletTx
>::const_iterator it
= mapWallet
.begin(); it
!= mapWallet
.end(); ++it
)
2009 const uint256
& wtxid
= it
->first
;
2010 const CWalletTx
* pcoin
= &(*it
).second
;
2012 if (!CheckFinalTx(*pcoin
))
2015 if (pcoin
->IsCoinBase() && pcoin
->GetBlocksToMaturity() > 0)
2018 int nDepth
= pcoin
->GetDepthInMainChain();
2022 // We should not consider coins which aren't at least in our mempool
2023 // It's possible for these to be conflicted via ancestors which we may never be able to detect
2024 if (nDepth
== 0 && !pcoin
->InMempool())
2027 bool safeTx
= pcoin
->IsTrusted();
2029 // We should not consider coins from transactions that are replacing
2030 // other transactions.
2032 // Example: There is a transaction A which is replaced by bumpfee
2033 // transaction B. In this case, we want to prevent creation of
2034 // a transaction B' which spends an output of B.
2036 // Reason: If transaction A were initially confirmed, transactions B
2037 // and B' would no longer be valid, so the user would have to create
2038 // a new transaction C to replace B'. However, in the case of a
2039 // one-block reorg, transactions B' and C might BOTH be accepted,
2040 // when the user only wanted one of them. Specifically, there could
2041 // be a 1-block reorg away from the chain where transactions A and C
2042 // were accepted to another chain where B, B', and C were all
2044 if (nDepth
== 0 && pcoin
->mapValue
.count("replaces_txid")) {
2048 // Similarly, we should not consider coins from transactions that
2049 // have been replaced. In the example above, we would want to prevent
2050 // creation of a transaction A' spending an output of A, because if
2051 // transaction B were initially confirmed, conflicting with A and
2052 // A', we wouldn't want to the user to create a transaction D
2053 // intending to replace A', but potentially resulting in a scenario
2054 // where A, A', and D could all be accepted (instead of just B and
2055 // D, or just A and A' like the user would want).
2056 if (nDepth
== 0 && pcoin
->mapValue
.count("replaced_by_txid")) {
2060 if (fOnlySafe
&& !safeTx
) {
2064 if (nDepth
< nMinDepth
|| nDepth
> nMaxDepth
)
2067 for (unsigned int i
= 0; i
< pcoin
->tx
->vout
.size(); i
++) {
2068 if (pcoin
->tx
->vout
[i
].nValue
< nMinimumAmount
|| pcoin
->tx
->vout
[i
].nValue
> nMaximumAmount
)
2071 if (coinControl
&& coinControl
->HasSelected() && !coinControl
->fAllowOtherInputs
&& !coinControl
->IsSelected(COutPoint((*it
).first
, i
)))
2074 if (IsLockedCoin((*it
).first
, i
))
2077 if (IsSpent(wtxid
, i
))
2080 isminetype mine
= IsMine(pcoin
->tx
->vout
[i
]);
2082 if (mine
== ISMINE_NO
) {
2086 bool fSpendableIn
= ((mine
& ISMINE_SPENDABLE
) != ISMINE_NO
) || (coinControl
&& coinControl
->fAllowWatchOnly
&& (mine
& ISMINE_WATCH_SOLVABLE
) != ISMINE_NO
);
2087 bool fSolvableIn
= (mine
& (ISMINE_SPENDABLE
| ISMINE_WATCH_SOLVABLE
)) != ISMINE_NO
;
2089 vCoins
.push_back(COutput(pcoin
, i
, nDepth
, fSpendableIn
, fSolvableIn
, safeTx
));
2091 // Checks the sum amount of all UTXO's.
2092 if (nMinimumSumAmount
!= MAX_MONEY
) {
2093 nTotal
+= pcoin
->tx
->vout
[i
].nValue
;
2095 if (nTotal
>= nMinimumSumAmount
) {
2100 // Checks the maximum number of UTXO's.
2101 if (nMaximumCount
> 0 && vCoins
.size() >= nMaximumCount
) {
2109 std::map
<CTxDestination
, std::vector
<COutput
>> CWallet::ListCoins() const
2111 // TODO: Add AssertLockHeld(cs_wallet) here.
2113 // Because the return value from this function contains pointers to
2114 // CWalletTx objects, callers to this function really should acquire the
2115 // cs_wallet lock before calling it. However, the current caller doesn't
2116 // acquire this lock yet. There was an attempt to add the missing lock in
2117 // https://github.com/bitcoin/bitcoin/pull/10340, but that change has been
2118 // postponed until after https://github.com/bitcoin/bitcoin/pull/10244 to
2119 // avoid adding some extra complexity to the Qt code.
2121 std::map
<CTxDestination
, std::vector
<COutput
>> result
;
2123 std::vector
<COutput
> availableCoins
;
2124 AvailableCoins(availableCoins
);
2126 LOCK2(cs_main
, cs_wallet
);
2127 for (auto& coin
: availableCoins
) {
2128 CTxDestination address
;
2129 if (coin
.fSpendable
&&
2130 ExtractDestination(FindNonChangeParentOutput(*coin
.tx
->tx
, coin
.i
).scriptPubKey
, address
)) {
2131 result
[address
].emplace_back(std::move(coin
));
2135 std::vector
<COutPoint
> lockedCoins
;
2136 ListLockedCoins(lockedCoins
);
2137 for (const auto& output
: lockedCoins
) {
2138 auto it
= mapWallet
.find(output
.hash
);
2139 if (it
!= mapWallet
.end()) {
2140 int depth
= it
->second
.GetDepthInMainChain();
2141 if (depth
>= 0 && output
.n
< it
->second
.tx
->vout
.size() &&
2142 IsMine(it
->second
.tx
->vout
[output
.n
]) == ISMINE_SPENDABLE
) {
2143 CTxDestination address
;
2144 if (ExtractDestination(FindNonChangeParentOutput(*it
->second
.tx
, output
.n
).scriptPubKey
, address
)) {
2145 result
[address
].emplace_back(
2146 &it
->second
, output
.n
, depth
, true /* spendable */, true /* solvable */, false /* safe */);
2155 const CTxOut
& CWallet::FindNonChangeParentOutput(const CTransaction
& tx
, int output
) const
2157 const CTransaction
* ptx
= &tx
;
2159 while (IsChange(ptx
->vout
[n
]) && ptx
->vin
.size() > 0) {
2160 const COutPoint
& prevout
= ptx
->vin
[0].prevout
;
2161 auto it
= mapWallet
.find(prevout
.hash
);
2162 if (it
== mapWallet
.end() || it
->second
.tx
->vout
.size() <= prevout
.n
||
2163 !IsMine(it
->second
.tx
->vout
[prevout
.n
])) {
2166 ptx
= it
->second
.tx
.get();
2169 return ptx
->vout
[n
];
2172 static void ApproximateBestSubset(const std::vector
<CInputCoin
>& vValue
, const CAmount
& nTotalLower
, const CAmount
& nTargetValue
,
2173 std::vector
<char>& vfBest
, CAmount
& nBest
, int iterations
= 1000)
2175 std::vector
<char> vfIncluded
;
2177 vfBest
.assign(vValue
.size(), true);
2178 nBest
= nTotalLower
;
2180 FastRandomContext insecure_rand
;
2182 for (int nRep
= 0; nRep
< iterations
&& nBest
!= nTargetValue
; nRep
++)
2184 vfIncluded
.assign(vValue
.size(), false);
2186 bool fReachedTarget
= false;
2187 for (int nPass
= 0; nPass
< 2 && !fReachedTarget
; nPass
++)
2189 for (unsigned int i
= 0; i
< vValue
.size(); i
++)
2191 //The solver here uses a randomized algorithm,
2192 //the randomness serves no real security purpose but is just
2193 //needed to prevent degenerate behavior and it is important
2194 //that the rng is fast. We do not use a constant random sequence,
2195 //because there may be some privacy improvement by making
2196 //the selection random.
2197 if (nPass
== 0 ? insecure_rand
.randbool() : !vfIncluded
[i
])
2199 nTotal
+= vValue
[i
].txout
.nValue
;
2200 vfIncluded
[i
] = true;
2201 if (nTotal
>= nTargetValue
)
2203 fReachedTarget
= true;
2207 vfBest
= vfIncluded
;
2209 nTotal
-= vValue
[i
].txout
.nValue
;
2210 vfIncluded
[i
] = false;
2218 bool CWallet::SelectCoinsMinConf(const CAmount
& nTargetValue
, const int nConfMine
, const int nConfTheirs
, const uint64_t nMaxAncestors
, std::vector
<COutput
> vCoins
,
2219 std::set
<CInputCoin
>& setCoinsRet
, CAmount
& nValueRet
) const
2221 setCoinsRet
.clear();
2224 // List of values less than target
2225 boost::optional
<CInputCoin
> coinLowestLarger
;
2226 std::vector
<CInputCoin
> vValue
;
2227 CAmount nTotalLower
= 0;
2229 random_shuffle(vCoins
.begin(), vCoins
.end(), GetRandInt
);
2231 BOOST_FOREACH(const COutput
&output
, vCoins
)
2233 if (!output
.fSpendable
)
2236 const CWalletTx
*pcoin
= output
.tx
;
2238 if (output
.nDepth
< (pcoin
->IsFromMe(ISMINE_ALL
) ? nConfMine
: nConfTheirs
))
2241 if (!mempool
.TransactionWithinChainLimit(pcoin
->GetHash(), nMaxAncestors
))
2246 CInputCoin coin
= CInputCoin(pcoin
, i
);
2248 if (coin
.txout
.nValue
== nTargetValue
)
2250 setCoinsRet
.insert(coin
);
2251 nValueRet
+= coin
.txout
.nValue
;
2254 else if (coin
.txout
.nValue
< nTargetValue
+ MIN_CHANGE
)
2256 vValue
.push_back(coin
);
2257 nTotalLower
+= coin
.txout
.nValue
;
2259 else if (!coinLowestLarger
|| coin
.txout
.nValue
< coinLowestLarger
->txout
.nValue
)
2261 coinLowestLarger
= coin
;
2265 if (nTotalLower
== nTargetValue
)
2267 for (const auto& input
: vValue
)
2269 setCoinsRet
.insert(input
);
2270 nValueRet
+= input
.txout
.nValue
;
2275 if (nTotalLower
< nTargetValue
)
2277 if (!coinLowestLarger
)
2279 setCoinsRet
.insert(coinLowestLarger
.get());
2280 nValueRet
+= coinLowestLarger
->txout
.nValue
;
2284 // Solve subset sum by stochastic approximation
2285 std::sort(vValue
.begin(), vValue
.end(), CompareValueOnly());
2286 std::reverse(vValue
.begin(), vValue
.end());
2287 std::vector
<char> vfBest
;
2290 ApproximateBestSubset(vValue
, nTotalLower
, nTargetValue
, vfBest
, nBest
);
2291 if (nBest
!= nTargetValue
&& nTotalLower
>= nTargetValue
+ MIN_CHANGE
)
2292 ApproximateBestSubset(vValue
, nTotalLower
, nTargetValue
+ MIN_CHANGE
, vfBest
, nBest
);
2294 // If we have a bigger coin and (either the stochastic approximation didn't find a good solution,
2295 // or the next bigger coin is closer), return the bigger coin
2296 if (coinLowestLarger
&&
2297 ((nBest
!= nTargetValue
&& nBest
< nTargetValue
+ MIN_CHANGE
) || coinLowestLarger
->txout
.nValue
<= nBest
))
2299 setCoinsRet
.insert(coinLowestLarger
.get());
2300 nValueRet
+= coinLowestLarger
->txout
.nValue
;
2303 for (unsigned int i
= 0; i
< vValue
.size(); i
++)
2306 setCoinsRet
.insert(vValue
[i
]);
2307 nValueRet
+= vValue
[i
].txout
.nValue
;
2310 if (LogAcceptCategory(BCLog::SELECTCOINS
)) {
2311 LogPrint(BCLog::SELECTCOINS
, "SelectCoins() best subset: ");
2312 for (unsigned int i
= 0; i
< vValue
.size(); i
++) {
2314 LogPrint(BCLog::SELECTCOINS
, "%s ", FormatMoney(vValue
[i
].txout
.nValue
));
2317 LogPrint(BCLog::SELECTCOINS
, "total %s\n", FormatMoney(nBest
));
2324 bool CWallet::SelectCoins(const std::vector
<COutput
>& vAvailableCoins
, const CAmount
& nTargetValue
, std::set
<CInputCoin
>& setCoinsRet
, CAmount
& nValueRet
, const CCoinControl
* coinControl
) const
2326 std::vector
<COutput
> vCoins(vAvailableCoins
);
2328 // coin control -> return all selected outputs (we want all selected to go into the transaction for sure)
2329 if (coinControl
&& coinControl
->HasSelected() && !coinControl
->fAllowOtherInputs
)
2331 BOOST_FOREACH(const COutput
& out
, vCoins
)
2333 if (!out
.fSpendable
)
2335 nValueRet
+= out
.tx
->tx
->vout
[out
.i
].nValue
;
2336 setCoinsRet
.insert(CInputCoin(out
.tx
, out
.i
));
2338 return (nValueRet
>= nTargetValue
);
2341 // calculate value from preset inputs and store them
2342 std::set
<CInputCoin
> setPresetCoins
;
2343 CAmount nValueFromPresetInputs
= 0;
2345 std::vector
<COutPoint
> vPresetInputs
;
2347 coinControl
->ListSelected(vPresetInputs
);
2348 BOOST_FOREACH(const COutPoint
& outpoint
, vPresetInputs
)
2350 std::map
<uint256
, CWalletTx
>::const_iterator it
= mapWallet
.find(outpoint
.hash
);
2351 if (it
!= mapWallet
.end())
2353 const CWalletTx
* pcoin
= &it
->second
;
2354 // Clearly invalid input, fail
2355 if (pcoin
->tx
->vout
.size() <= outpoint
.n
)
2357 nValueFromPresetInputs
+= pcoin
->tx
->vout
[outpoint
.n
].nValue
;
2358 setPresetCoins
.insert(CInputCoin(pcoin
, outpoint
.n
));
2360 return false; // TODO: Allow non-wallet inputs
2363 // remove preset inputs from vCoins
2364 for (std::vector
<COutput
>::iterator it
= vCoins
.begin(); it
!= vCoins
.end() && coinControl
&& coinControl
->HasSelected();)
2366 if (setPresetCoins
.count(CInputCoin(it
->tx
, it
->i
)))
2367 it
= vCoins
.erase(it
);
2372 size_t nMaxChainLength
= std::min(GetArg("-limitancestorcount", DEFAULT_ANCESTOR_LIMIT
), GetArg("-limitdescendantcount", DEFAULT_DESCENDANT_LIMIT
));
2373 bool fRejectLongChains
= GetBoolArg("-walletrejectlongchains", DEFAULT_WALLET_REJECT_LONG_CHAINS
);
2375 bool res
= nTargetValue
<= nValueFromPresetInputs
||
2376 SelectCoinsMinConf(nTargetValue
- nValueFromPresetInputs
, 1, 6, 0, vCoins
, setCoinsRet
, nValueRet
) ||
2377 SelectCoinsMinConf(nTargetValue
- nValueFromPresetInputs
, 1, 1, 0, vCoins
, setCoinsRet
, nValueRet
) ||
2378 (bSpendZeroConfChange
&& SelectCoinsMinConf(nTargetValue
- nValueFromPresetInputs
, 0, 1, 2, vCoins
, setCoinsRet
, nValueRet
)) ||
2379 (bSpendZeroConfChange
&& SelectCoinsMinConf(nTargetValue
- nValueFromPresetInputs
, 0, 1, std::min((size_t)4, nMaxChainLength
/3), vCoins
, setCoinsRet
, nValueRet
)) ||
2380 (bSpendZeroConfChange
&& SelectCoinsMinConf(nTargetValue
- nValueFromPresetInputs
, 0, 1, nMaxChainLength
/2, vCoins
, setCoinsRet
, nValueRet
)) ||
2381 (bSpendZeroConfChange
&& SelectCoinsMinConf(nTargetValue
- nValueFromPresetInputs
, 0, 1, nMaxChainLength
, vCoins
, setCoinsRet
, nValueRet
)) ||
2382 (bSpendZeroConfChange
&& !fRejectLongChains
&& SelectCoinsMinConf(nTargetValue
- nValueFromPresetInputs
, 0, 1, std::numeric_limits
<uint64_t>::max(), vCoins
, setCoinsRet
, nValueRet
));
2384 // because SelectCoinsMinConf clears the setCoinsRet, we now add the possible inputs to the coinset
2385 setCoinsRet
.insert(setPresetCoins
.begin(), setPresetCoins
.end());
2387 // add preset inputs to the total value selected
2388 nValueRet
+= nValueFromPresetInputs
;
2393 bool CWallet::SignTransaction(CMutableTransaction
&tx
)
2395 AssertLockHeld(cs_wallet
); // mapWallet
2398 CTransaction
txNewConst(tx
);
2400 for (const auto& input
: tx
.vin
) {
2401 std::map
<uint256
, CWalletTx
>::const_iterator mi
= mapWallet
.find(input
.prevout
.hash
);
2402 if(mi
== mapWallet
.end() || input
.prevout
.n
>= mi
->second
.tx
->vout
.size()) {
2405 const CScript
& scriptPubKey
= mi
->second
.tx
->vout
[input
.prevout
.n
].scriptPubKey
;
2406 const CAmount
& amount
= mi
->second
.tx
->vout
[input
.prevout
.n
].nValue
;
2407 SignatureData sigdata
;
2408 if (!ProduceSignature(TransactionSignatureCreator(this, &txNewConst
, nIn
, amount
, SIGHASH_ALL
), scriptPubKey
, sigdata
)) {
2411 UpdateTransaction(tx
, nIn
, sigdata
);
2417 bool CWallet::FundTransaction(CMutableTransaction
& tx
, CAmount
& nFeeRet
, int& nChangePosInOut
, std::string
& strFailReason
, bool lockUnspents
, const std::set
<int>& setSubtractFeeFromOutputs
, CCoinControl coinControl
, bool keepReserveKey
)
2419 std::vector
<CRecipient
> vecSend
;
2421 // Turn the txout set into a CRecipient vector
2422 for (size_t idx
= 0; idx
< tx
.vout
.size(); idx
++)
2424 const CTxOut
& txOut
= tx
.vout
[idx
];
2425 CRecipient recipient
= {txOut
.scriptPubKey
, txOut
.nValue
, setSubtractFeeFromOutputs
.count(idx
) == 1};
2426 vecSend
.push_back(recipient
);
2429 coinControl
.fAllowOtherInputs
= true;
2431 BOOST_FOREACH(const CTxIn
& txin
, tx
.vin
)
2432 coinControl
.Select(txin
.prevout
);
2434 CReserveKey
reservekey(this);
2436 if (!CreateTransaction(vecSend
, wtx
, reservekey
, nFeeRet
, nChangePosInOut
, strFailReason
, &coinControl
, false))
2439 if (nChangePosInOut
!= -1)
2440 tx
.vout
.insert(tx
.vout
.begin() + nChangePosInOut
, wtx
.tx
->vout
[nChangePosInOut
]);
2442 // Copy output sizes from new transaction; they may have had the fee subtracted from them
2443 for (unsigned int idx
= 0; idx
< tx
.vout
.size(); idx
++)
2444 tx
.vout
[idx
].nValue
= wtx
.tx
->vout
[idx
].nValue
;
2446 // Add new txins (keeping original txin scriptSig/order)
2447 BOOST_FOREACH(const CTxIn
& txin
, wtx
.tx
->vin
)
2449 if (!coinControl
.IsSelected(txin
.prevout
))
2451 tx
.vin
.push_back(txin
);
2455 LOCK2(cs_main
, cs_wallet
);
2456 LockCoin(txin
.prevout
);
2461 // optionally keep the change output key
2463 reservekey
.KeepKey();
2468 bool CWallet::CreateTransaction(const std::vector
<CRecipient
>& vecSend
, CWalletTx
& wtxNew
, CReserveKey
& reservekey
, CAmount
& nFeeRet
,
2469 int& nChangePosInOut
, std::string
& strFailReason
, const CCoinControl
* coinControl
, bool sign
)
2472 int nChangePosRequest
= nChangePosInOut
;
2473 unsigned int nSubtractFeeFromAmount
= 0;
2474 for (const auto& recipient
: vecSend
)
2476 if (nValue
< 0 || recipient
.nAmount
< 0)
2478 strFailReason
= _("Transaction amounts must not be negative");
2481 nValue
+= recipient
.nAmount
;
2483 if (recipient
.fSubtractFeeFromAmount
)
2484 nSubtractFeeFromAmount
++;
2486 if (vecSend
.empty())
2488 strFailReason
= _("Transaction must have at least one recipient");
2492 wtxNew
.fTimeReceivedIsTxTime
= true;
2493 wtxNew
.BindWallet(this);
2494 CMutableTransaction txNew
;
2496 // Discourage fee sniping.
2498 // For a large miner the value of the transactions in the best block and
2499 // the mempool can exceed the cost of deliberately attempting to mine two
2500 // blocks to orphan the current best block. By setting nLockTime such that
2501 // only the next block can include the transaction, we discourage this
2502 // practice as the height restricted and limited blocksize gives miners
2503 // considering fee sniping fewer options for pulling off this attack.
2505 // A simple way to think about this is from the wallet's point of view we
2506 // always want the blockchain to move forward. By setting nLockTime this
2507 // way we're basically making the statement that we only want this
2508 // transaction to appear in the next block; we don't want to potentially
2509 // encourage reorgs by allowing transactions to appear at lower heights
2510 // than the next block in forks of the best chain.
2512 // Of course, the subsidy is high enough, and transaction volume low
2513 // enough, that fee sniping isn't a problem yet, but by implementing a fix
2514 // now we ensure code won't be written that makes assumptions about
2515 // nLockTime that preclude a fix later.
2516 txNew
.nLockTime
= chainActive
.Height();
2518 // Secondly occasionally randomly pick a nLockTime even further back, so
2519 // that transactions that are delayed after signing for whatever reason,
2520 // e.g. high-latency mix networks and some CoinJoin implementations, have
2522 if (GetRandInt(10) == 0)
2523 txNew
.nLockTime
= std::max(0, (int)txNew
.nLockTime
- GetRandInt(100));
2525 assert(txNew
.nLockTime
<= (unsigned int)chainActive
.Height());
2526 assert(txNew
.nLockTime
< LOCKTIME_THRESHOLD
);
2529 std::set
<CInputCoin
> setCoins
;
2530 LOCK2(cs_main
, cs_wallet
);
2532 std::vector
<COutput
> vAvailableCoins
;
2533 AvailableCoins(vAvailableCoins
, true, coinControl
);
2536 // Start with no fee and loop until there is enough fee
2539 nChangePosInOut
= nChangePosRequest
;
2542 wtxNew
.fFromMe
= true;
2545 CAmount nValueToSelect
= nValue
;
2546 if (nSubtractFeeFromAmount
== 0)
2547 nValueToSelect
+= nFeeRet
;
2548 // vouts to the payees
2549 for (const auto& recipient
: vecSend
)
2551 CTxOut
txout(recipient
.nAmount
, recipient
.scriptPubKey
);
2553 if (recipient
.fSubtractFeeFromAmount
)
2555 txout
.nValue
-= nFeeRet
/ nSubtractFeeFromAmount
; // Subtract fee equally from each selected recipient
2557 if (fFirst
) // first receiver pays the remainder not divisible by output count
2560 txout
.nValue
-= nFeeRet
% nSubtractFeeFromAmount
;
2564 if (IsDust(txout
, ::dustRelayFee
))
2566 if (recipient
.fSubtractFeeFromAmount
&& nFeeRet
> 0)
2568 if (txout
.nValue
< 0)
2569 strFailReason
= _("The transaction amount is too small to pay the fee");
2571 strFailReason
= _("The transaction amount is too small to send after the fee has been deducted");
2574 strFailReason
= _("Transaction amount too small");
2577 txNew
.vout
.push_back(txout
);
2580 // Choose coins to use
2581 CAmount nValueIn
= 0;
2583 if (!SelectCoins(vAvailableCoins
, nValueToSelect
, setCoins
, nValueIn
, coinControl
))
2585 strFailReason
= _("Insufficient funds");
2589 const CAmount nChange
= nValueIn
- nValueToSelect
;
2592 // Fill a vout to ourself
2593 // TODO: pass in scriptChange instead of reservekey so
2594 // change transaction isn't always pay-to-bitcoin-address
2595 CScript scriptChange
;
2597 // coin control: send change to custom address
2598 if (coinControl
&& !boost::get
<CNoDestination
>(&coinControl
->destChange
))
2599 scriptChange
= GetScriptForDestination(coinControl
->destChange
);
2601 // no coin control: send change to newly generated address
2604 // Note: We use a new key here to keep it from being obvious which side is the change.
2605 // The drawback is that by not reusing a previous key, the change may be lost if a
2606 // backup is restored, if the backup doesn't have the new private key for the change.
2607 // If we reused the old key, it would be possible to add code to look for and
2608 // rediscover unknown transactions that were written with keys of ours to recover
2609 // post-backup change.
2611 // Reserve a new key pair from key pool
2614 ret
= reservekey
.GetReservedKey(vchPubKey
, true);
2617 strFailReason
= _("Keypool ran out, please call keypoolrefill first");
2621 scriptChange
= GetScriptForDestination(vchPubKey
.GetID());
2624 CTxOut
newTxOut(nChange
, scriptChange
);
2626 // We do not move dust-change to fees, because the sender would end up paying more than requested.
2627 // This would be against the purpose of the all-inclusive feature.
2628 // So instead we raise the change and deduct from the recipient.
2629 if (nSubtractFeeFromAmount
> 0 && IsDust(newTxOut
, ::dustRelayFee
))
2631 CAmount nDust
= GetDustThreshold(newTxOut
, ::dustRelayFee
) - newTxOut
.nValue
;
2632 newTxOut
.nValue
+= nDust
; // raise change until no more dust
2633 for (unsigned int i
= 0; i
< vecSend
.size(); i
++) // subtract from first recipient
2635 if (vecSend
[i
].fSubtractFeeFromAmount
)
2637 txNew
.vout
[i
].nValue
-= nDust
;
2638 if (IsDust(txNew
.vout
[i
], ::dustRelayFee
))
2640 strFailReason
= _("The transaction amount is too small to send after the fee has been deducted");
2648 // Never create dust outputs; if we would, just
2649 // add the dust to the fee.
2650 if (IsDust(newTxOut
, ::dustRelayFee
))
2652 nChangePosInOut
= -1;
2654 reservekey
.ReturnKey();
2658 if (nChangePosInOut
== -1)
2660 // Insert change txn at random position:
2661 nChangePosInOut
= GetRandInt(txNew
.vout
.size()+1);
2663 else if ((unsigned int)nChangePosInOut
> txNew
.vout
.size())
2665 strFailReason
= _("Change index out of range");
2669 std::vector
<CTxOut
>::iterator position
= txNew
.vout
.begin()+nChangePosInOut
;
2670 txNew
.vout
.insert(position
, newTxOut
);
2673 reservekey
.ReturnKey();
2674 nChangePosInOut
= -1;
2679 // Note how the sequence number is set to non-maxint so that
2680 // the nLockTime set above actually works.
2682 // BIP125 defines opt-in RBF as any nSequence < maxint-1, so
2683 // we use the highest possible value in that range (maxint-2)
2684 // to avoid conflicting with other possible uses of nSequence,
2685 // and in the spirit of "smallest possible change from prior
2687 bool rbf
= coinControl
? coinControl
->signalRbf
: fWalletRbf
;
2688 const uint32_t nSequence
= rbf
? MAX_BIP125_RBF_SEQUENCE
: (std::numeric_limits
<unsigned int>::max() - 1);
2689 for (const auto& coin
: setCoins
)
2690 txNew
.vin
.push_back(CTxIn(coin
.outpoint
,CScript(),
2693 // Fill in dummy signatures for fee calculation.
2694 if (!DummySignTx(txNew
, setCoins
)) {
2695 strFailReason
= _("Signing transaction failed");
2699 unsigned int nBytes
= GetVirtualTransactionSize(txNew
);
2701 CTransaction
txNewConst(txNew
);
2703 // Remove scriptSigs to eliminate the fee calculation dummy signatures
2704 for (auto& vin
: txNew
.vin
) {
2705 vin
.scriptSig
= CScript();
2706 vin
.scriptWitness
.SetNull();
2709 // Allow to override the default confirmation target over the CoinControl instance
2710 int currentConfirmationTarget
= nTxConfirmTarget
;
2711 if (coinControl
&& coinControl
->nConfirmTarget
> 0)
2712 currentConfirmationTarget
= coinControl
->nConfirmTarget
;
2714 CAmount nFeeNeeded
= GetMinimumFee(nBytes
, currentConfirmationTarget
, ::mempool
, ::feeEstimator
);
2715 if (coinControl
&& coinControl
->fOverrideFeeRate
)
2716 nFeeNeeded
= coinControl
->nFeeRate
.GetFee(nBytes
);
2718 // If we made it here and we aren't even able to meet the relay fee on the next pass, give up
2719 // because we must be at the maximum allowed fee.
2720 if (nFeeNeeded
< ::minRelayTxFee
.GetFee(nBytes
))
2722 strFailReason
= _("Transaction too large for fee policy");
2726 if (nFeeRet
>= nFeeNeeded
) {
2727 // Reduce fee to only the needed amount if we have change
2728 // output to increase. This prevents potential overpayment
2729 // in fees if the coins selected to meet nFeeNeeded result
2730 // in a transaction that requires less fee than the prior
2732 // TODO: The case where nSubtractFeeFromAmount > 0 remains
2733 // to be addressed because it requires returning the fee to
2734 // the payees and not the change output.
2735 // TODO: The case where there is no change output remains
2736 // to be addressed so we avoid creating too small an output.
2737 if (nFeeRet
> nFeeNeeded
&& nChangePosInOut
!= -1 && nSubtractFeeFromAmount
== 0) {
2738 CAmount extraFeePaid
= nFeeRet
- nFeeNeeded
;
2739 std::vector
<CTxOut
>::iterator change_position
= txNew
.vout
.begin()+nChangePosInOut
;
2740 change_position
->nValue
+= extraFeePaid
;
2741 nFeeRet
-= extraFeePaid
;
2743 break; // Done, enough fee included.
2746 // Try to reduce change to include necessary fee
2747 if (nChangePosInOut
!= -1 && nSubtractFeeFromAmount
== 0) {
2748 CAmount additionalFeeNeeded
= nFeeNeeded
- nFeeRet
;
2749 std::vector
<CTxOut
>::iterator change_position
= txNew
.vout
.begin()+nChangePosInOut
;
2750 // Only reduce change if remaining amount is still a large enough output.
2751 if (change_position
->nValue
>= MIN_FINAL_CHANGE
+ additionalFeeNeeded
) {
2752 change_position
->nValue
-= additionalFeeNeeded
;
2753 nFeeRet
+= additionalFeeNeeded
;
2754 break; // Done, able to increase fee from change
2758 // Include more fee and try again.
2759 nFeeRet
= nFeeNeeded
;
2766 CTransaction
txNewConst(txNew
);
2768 for (const auto& coin
: setCoins
)
2770 const CScript
& scriptPubKey
= coin
.txout
.scriptPubKey
;
2771 SignatureData sigdata
;
2773 if (!ProduceSignature(TransactionSignatureCreator(this, &txNewConst
, nIn
, coin
.txout
.nValue
, SIGHASH_ALL
), scriptPubKey
, sigdata
))
2775 strFailReason
= _("Signing transaction failed");
2778 UpdateTransaction(txNew
, nIn
, sigdata
);
2785 // Embed the constructed transaction data in wtxNew.
2786 wtxNew
.SetTx(MakeTransactionRef(std::move(txNew
)));
2789 if (GetTransactionWeight(wtxNew
) >= MAX_STANDARD_TX_WEIGHT
)
2791 strFailReason
= _("Transaction too large");
2796 if (GetBoolArg("-walletrejectlongchains", DEFAULT_WALLET_REJECT_LONG_CHAINS
)) {
2797 // Lastly, ensure this tx will pass the mempool's chain limits
2799 CTxMemPoolEntry
entry(wtxNew
.tx
, 0, 0, 0, false, 0, lp
);
2800 CTxMemPool::setEntries setAncestors
;
2801 size_t nLimitAncestors
= GetArg("-limitancestorcount", DEFAULT_ANCESTOR_LIMIT
);
2802 size_t nLimitAncestorSize
= GetArg("-limitancestorsize", DEFAULT_ANCESTOR_SIZE_LIMIT
)*1000;
2803 size_t nLimitDescendants
= GetArg("-limitdescendantcount", DEFAULT_DESCENDANT_LIMIT
);
2804 size_t nLimitDescendantSize
= GetArg("-limitdescendantsize", DEFAULT_DESCENDANT_SIZE_LIMIT
)*1000;
2805 std::string errString
;
2806 if (!mempool
.CalculateMemPoolAncestors(entry
, setAncestors
, nLimitAncestors
, nLimitAncestorSize
, nLimitDescendants
, nLimitDescendantSize
, errString
)) {
2807 strFailReason
= _("Transaction has too long of a mempool chain");
2815 * Call after CreateTransaction unless you want to abort
2817 bool CWallet::CommitTransaction(CWalletTx
& wtxNew
, CReserveKey
& reservekey
, CConnman
* connman
, CValidationState
& state
)
2820 LOCK2(cs_main
, cs_wallet
);
2821 LogPrintf("CommitTransaction:\n%s", wtxNew
.tx
->ToString());
2823 // Take key pair from key pool so it won't be used again
2824 reservekey
.KeepKey();
2826 // Add tx to wallet, because if it has change it's also ours,
2827 // otherwise just for transaction history.
2828 AddToWallet(wtxNew
);
2830 // Notify that old coins are spent
2831 BOOST_FOREACH(const CTxIn
& txin
, wtxNew
.tx
->vin
)
2833 CWalletTx
&coin
= mapWallet
[txin
.prevout
.hash
];
2834 coin
.BindWallet(this);
2835 NotifyTransactionChanged(this, coin
.GetHash(), CT_UPDATED
);
2839 // Track how many getdata requests our transaction gets
2840 mapRequestCount
[wtxNew
.GetHash()] = 0;
2842 if (fBroadcastTransactions
)
2845 if (!wtxNew
.AcceptToMemoryPool(maxTxFee
, state
)) {
2846 LogPrintf("CommitTransaction(): Transaction cannot be broadcast immediately, %s\n", state
.GetRejectReason());
2847 // TODO: if we expect the failure to be long term or permanent, instead delete wtx from the wallet and return failure.
2849 wtxNew
.RelayWalletTransaction(connman
);
2856 void CWallet::ListAccountCreditDebit(const std::string
& strAccount
, std::list
<CAccountingEntry
>& entries
) {
2857 CWalletDB
walletdb(*dbw
);
2858 return walletdb
.ListAccountCreditDebit(strAccount
, entries
);
2861 bool CWallet::AddAccountingEntry(const CAccountingEntry
& acentry
)
2863 CWalletDB
walletdb(*dbw
);
2865 return AddAccountingEntry(acentry
, &walletdb
);
2868 bool CWallet::AddAccountingEntry(const CAccountingEntry
& acentry
, CWalletDB
*pwalletdb
)
2870 if (!pwalletdb
->WriteAccountingEntry_Backend(acentry
))
2873 laccentries
.push_back(acentry
);
2874 CAccountingEntry
& entry
= laccentries
.back();
2875 wtxOrdered
.insert(std::make_pair(entry
.nOrderPos
, TxPair((CWalletTx
*)0, &entry
)));
2880 CAmount
CWallet::GetRequiredFee(unsigned int nTxBytes
)
2882 return std::max(minTxFee
.GetFee(nTxBytes
), ::minRelayTxFee
.GetFee(nTxBytes
));
2885 CAmount
CWallet::GetMinimumFee(unsigned int nTxBytes
, unsigned int nConfirmTarget
, const CTxMemPool
& pool
, const CBlockPolicyEstimator
& estimator
, bool ignoreGlobalPayTxFee
)
2887 // payTxFee is the user-set global for desired feerate
2888 CAmount nFeeNeeded
= payTxFee
.GetFee(nTxBytes
);
2889 // User didn't set: use -txconfirmtarget to estimate...
2890 if (nFeeNeeded
== 0 || ignoreGlobalPayTxFee
) {
2891 int estimateFoundTarget
= nConfirmTarget
;
2892 nFeeNeeded
= estimator
.estimateSmartFee(nConfirmTarget
, &estimateFoundTarget
, pool
).GetFee(nTxBytes
);
2893 // ... unless we don't have enough mempool data for estimatefee, then use fallbackFee
2894 if (nFeeNeeded
== 0)
2895 nFeeNeeded
= fallbackFee
.GetFee(nTxBytes
);
2897 // prevent user from paying a fee below minRelayTxFee or minTxFee
2898 nFeeNeeded
= std::max(nFeeNeeded
, GetRequiredFee(nTxBytes
));
2899 // But always obey the maximum
2900 if (nFeeNeeded
> maxTxFee
)
2901 nFeeNeeded
= maxTxFee
;
2908 DBErrors
CWallet::LoadWallet(bool& fFirstRunRet
)
2910 fFirstRunRet
= false;
2911 DBErrors nLoadWalletRet
= CWalletDB(*dbw
,"cr+").LoadWallet(this);
2912 if (nLoadWalletRet
== DB_NEED_REWRITE
)
2914 if (dbw
->Rewrite("\x04pool"))
2918 // Note: can't top-up keypool here, because wallet is locked.
2919 // User will be prompted to unlock wallet the next operation
2920 // that requires a new key.
2924 if (nLoadWalletRet
!= DB_LOAD_OK
)
2925 return nLoadWalletRet
;
2926 fFirstRunRet
= !vchDefaultKey
.IsValid();
2928 uiInterface
.LoadWallet(this);
2933 DBErrors
CWallet::ZapSelectTx(std::vector
<uint256
>& vHashIn
, std::vector
<uint256
>& vHashOut
)
2935 AssertLockHeld(cs_wallet
); // mapWallet
2936 vchDefaultKey
= CPubKey();
2937 DBErrors nZapSelectTxRet
= CWalletDB(*dbw
,"cr+").ZapSelectTx(vHashIn
, vHashOut
);
2938 for (uint256 hash
: vHashOut
)
2939 mapWallet
.erase(hash
);
2941 if (nZapSelectTxRet
== DB_NEED_REWRITE
)
2943 if (dbw
->Rewrite("\x04pool"))
2946 // Note: can't top-up keypool here, because wallet is locked.
2947 // User will be prompted to unlock wallet the next operation
2948 // that requires a new key.
2952 if (nZapSelectTxRet
!= DB_LOAD_OK
)
2953 return nZapSelectTxRet
;
2961 DBErrors
CWallet::ZapWalletTx(std::vector
<CWalletTx
>& vWtx
)
2963 vchDefaultKey
= CPubKey();
2964 DBErrors nZapWalletTxRet
= CWalletDB(*dbw
,"cr+").ZapWalletTx(vWtx
);
2965 if (nZapWalletTxRet
== DB_NEED_REWRITE
)
2967 if (dbw
->Rewrite("\x04pool"))
2971 // Note: can't top-up keypool here, because wallet is locked.
2972 // User will be prompted to unlock wallet the next operation
2973 // that requires a new key.
2977 if (nZapWalletTxRet
!= DB_LOAD_OK
)
2978 return nZapWalletTxRet
;
2984 bool CWallet::SetAddressBook(const CTxDestination
& address
, const std::string
& strName
, const std::string
& strPurpose
)
2986 bool fUpdated
= false;
2988 LOCK(cs_wallet
); // mapAddressBook
2989 std::map
<CTxDestination
, CAddressBookData
>::iterator mi
= mapAddressBook
.find(address
);
2990 fUpdated
= mi
!= mapAddressBook
.end();
2991 mapAddressBook
[address
].name
= strName
;
2992 if (!strPurpose
.empty()) /* update purpose only if requested */
2993 mapAddressBook
[address
].purpose
= strPurpose
;
2995 NotifyAddressBookChanged(this, address
, strName
, ::IsMine(*this, address
) != ISMINE_NO
,
2996 strPurpose
, (fUpdated
? CT_UPDATED
: CT_NEW
) );
2997 if (!strPurpose
.empty() && !CWalletDB(*dbw
).WritePurpose(CBitcoinAddress(address
).ToString(), strPurpose
))
2999 return CWalletDB(*dbw
).WriteName(CBitcoinAddress(address
).ToString(), strName
);
3002 bool CWallet::DelAddressBook(const CTxDestination
& address
)
3005 LOCK(cs_wallet
); // mapAddressBook
3007 // Delete destdata tuples associated with address
3008 std::string strAddress
= CBitcoinAddress(address
).ToString();
3009 BOOST_FOREACH(const PAIRTYPE(std::string
, std::string
) &item
, mapAddressBook
[address
].destdata
)
3011 CWalletDB(*dbw
).EraseDestData(strAddress
, item
.first
);
3013 mapAddressBook
.erase(address
);
3016 NotifyAddressBookChanged(this, address
, "", ::IsMine(*this, address
) != ISMINE_NO
, "", CT_DELETED
);
3018 CWalletDB(*dbw
).ErasePurpose(CBitcoinAddress(address
).ToString());
3019 return CWalletDB(*dbw
).EraseName(CBitcoinAddress(address
).ToString());
3022 const std::string
& CWallet::GetAccountName(const CScript
& scriptPubKey
) const
3024 CTxDestination address
;
3025 if (ExtractDestination(scriptPubKey
, address
) && !scriptPubKey
.IsUnspendable()) {
3026 auto mi
= mapAddressBook
.find(address
);
3027 if (mi
!= mapAddressBook
.end()) {
3028 return mi
->second
.name
;
3031 // A scriptPubKey that doesn't have an entry in the address book is
3032 // associated with the default account ("").
3033 const static std::string DEFAULT_ACCOUNT_NAME
;
3034 return DEFAULT_ACCOUNT_NAME
;
3037 bool CWallet::SetDefaultKey(const CPubKey
&vchPubKey
)
3039 if (!CWalletDB(*dbw
).WriteDefaultKey(vchPubKey
))
3041 vchDefaultKey
= vchPubKey
;
3046 * Mark old keypool keys as used,
3047 * and generate all new keys
3049 bool CWallet::NewKeyPool()
3053 CWalletDB
walletdb(*dbw
);
3054 BOOST_FOREACH(int64_t nIndex
, setKeyPool
)
3055 walletdb
.ErasePool(nIndex
);
3058 if (!TopUpKeyPool()) {
3061 LogPrintf("CWallet::NewKeyPool rewrote keypool\n");
3066 size_t CWallet::KeypoolCountExternalKeys()
3068 AssertLockHeld(cs_wallet
); // setKeyPool
3070 // immediately return setKeyPool's size if HD or HD_SPLIT is disabled or not supported
3071 if (!IsHDEnabled() || !CanSupportFeature(FEATURE_HD_SPLIT
))
3072 return setKeyPool
.size();
3074 CWalletDB
walletdb(*dbw
);
3076 // count amount of external keys
3078 for(const int64_t& id
: setKeyPool
)
3080 CKeyPool tmpKeypool
;
3081 if (!walletdb
.ReadPool(id
, tmpKeypool
))
3082 throw std::runtime_error(std::string(__func__
) + ": read failed");
3083 amountE
+= !tmpKeypool
.fInternal
;
3089 bool CWallet::TopUpKeyPool(unsigned int kpSize
)
3098 unsigned int nTargetSize
;
3100 nTargetSize
= kpSize
;
3102 nTargetSize
= std::max(GetArg("-keypool", DEFAULT_KEYPOOL_SIZE
), (int64_t) 0);
3104 // count amount of available keys (internal, external)
3105 // make sure the keypool of external and internal keys fits the user selected target (-keypool)
3106 int64_t amountExternal
= KeypoolCountExternalKeys();
3107 int64_t amountInternal
= setKeyPool
.size() - amountExternal
;
3108 int64_t missingExternal
= std::max(std::max((int64_t) nTargetSize
, (int64_t) 1) - amountExternal
, (int64_t) 0);
3109 int64_t missingInternal
= std::max(std::max((int64_t) nTargetSize
, (int64_t) 1) - amountInternal
, (int64_t) 0);
3111 if (!IsHDEnabled() || !CanSupportFeature(FEATURE_HD_SPLIT
))
3113 // don't create extra internal keys
3114 missingInternal
= 0;
3116 bool internal
= false;
3117 CWalletDB
walletdb(*dbw
);
3118 for (int64_t i
= missingInternal
+ missingExternal
; i
--;)
3121 if (i
< missingInternal
)
3123 if (!setKeyPool
.empty())
3124 nEnd
= *(--setKeyPool
.end()) + 1;
3125 if (!walletdb
.WritePool(nEnd
, CKeyPool(GenerateNewKey(internal
), internal
)))
3126 throw std::runtime_error(std::string(__func__
) + ": writing generated key failed");
3127 setKeyPool
.insert(nEnd
);
3128 LogPrintf("keypool added key %d, size=%u, internal=%d\n", nEnd
, setKeyPool
.size(), internal
);
3134 void CWallet::ReserveKeyFromKeyPool(int64_t& nIndex
, CKeyPool
& keypool
, bool internal
)
3137 keypool
.vchPubKey
= CPubKey();
3144 // Get the oldest key
3145 if(setKeyPool
.empty())
3148 CWalletDB
walletdb(*dbw
);
3150 // try to find a key that matches the internal/external filter
3151 for(const int64_t& id
: setKeyPool
)
3153 CKeyPool tmpKeypool
;
3154 if (!walletdb
.ReadPool(id
, tmpKeypool
))
3155 throw std::runtime_error(std::string(__func__
) + ": read failed");
3156 if (!HaveKey(tmpKeypool
.vchPubKey
.GetID()))
3157 throw std::runtime_error(std::string(__func__
) + ": unknown key in key pool");
3158 if (!IsHDEnabled() || !CanSupportFeature(FEATURE_HD_SPLIT
) || tmpKeypool
.fInternal
== internal
)
3161 keypool
= tmpKeypool
;
3162 setKeyPool
.erase(id
);
3163 assert(keypool
.vchPubKey
.IsValid());
3164 LogPrintf("keypool reserve %d\n", nIndex
);
3171 void CWallet::KeepKey(int64_t nIndex
)
3173 // Remove from key pool
3174 CWalletDB
walletdb(*dbw
);
3175 walletdb
.ErasePool(nIndex
);
3176 LogPrintf("keypool keep %d\n", nIndex
);
3179 void CWallet::ReturnKey(int64_t nIndex
)
3181 // Return to key pool
3184 setKeyPool
.insert(nIndex
);
3186 LogPrintf("keypool return %d\n", nIndex
);
3189 bool CWallet::GetKeyFromPool(CPubKey
& result
, bool internal
)
3195 ReserveKeyFromKeyPool(nIndex
, keypool
, internal
);
3198 if (IsLocked()) return false;
3199 result
= GenerateNewKey(internal
);
3203 result
= keypool
.vchPubKey
;
3208 int64_t CWallet::GetOldestKeyPoolTime()
3212 // if the keypool is empty, return <NOW>
3213 if (setKeyPool
.empty())
3217 CWalletDB
walletdb(*dbw
);
3219 if (IsHDEnabled() && CanSupportFeature(FEATURE_HD_SPLIT
))
3221 // if HD & HD Chain Split is enabled, response max(oldest-internal-key, oldest-external-key)
3222 int64_t now
= GetTime();
3223 int64_t oldest_external
= now
, oldest_internal
= now
;
3225 for(const int64_t& id
: setKeyPool
)
3227 if (!walletdb
.ReadPool(id
, keypool
)) {
3228 throw std::runtime_error(std::string(__func__
) + ": read failed");
3230 if (keypool
.fInternal
&& keypool
.nTime
< oldest_internal
) {
3231 oldest_internal
= keypool
.nTime
;
3233 else if (!keypool
.fInternal
&& keypool
.nTime
< oldest_external
) {
3234 oldest_external
= keypool
.nTime
;
3236 if (oldest_internal
!= now
&& oldest_external
!= now
) {
3240 return std::max(oldest_internal
, oldest_external
);
3242 // load oldest key from keypool, get time and return
3243 int64_t nIndex
= *(setKeyPool
.begin());
3244 if (!walletdb
.ReadPool(nIndex
, keypool
))
3245 throw std::runtime_error(std::string(__func__
) + ": read oldest key in keypool failed");
3246 assert(keypool
.vchPubKey
.IsValid());
3247 return keypool
.nTime
;
3250 std::map
<CTxDestination
, CAmount
> CWallet::GetAddressBalances()
3252 std::map
<CTxDestination
, CAmount
> balances
;
3256 for (const auto& walletEntry
: mapWallet
)
3258 const CWalletTx
*pcoin
= &walletEntry
.second
;
3260 if (!pcoin
->IsTrusted())
3263 if (pcoin
->IsCoinBase() && pcoin
->GetBlocksToMaturity() > 0)
3266 int nDepth
= pcoin
->GetDepthInMainChain();
3267 if (nDepth
< (pcoin
->IsFromMe(ISMINE_ALL
) ? 0 : 1))
3270 for (unsigned int i
= 0; i
< pcoin
->tx
->vout
.size(); i
++)
3272 CTxDestination addr
;
3273 if (!IsMine(pcoin
->tx
->vout
[i
]))
3275 if(!ExtractDestination(pcoin
->tx
->vout
[i
].scriptPubKey
, addr
))
3278 CAmount n
= IsSpent(walletEntry
.first
, i
) ? 0 : pcoin
->tx
->vout
[i
].nValue
;
3280 if (!balances
.count(addr
))
3282 balances
[addr
] += n
;
3290 std::set
< std::set
<CTxDestination
> > CWallet::GetAddressGroupings()
3292 AssertLockHeld(cs_wallet
); // mapWallet
3293 std::set
< std::set
<CTxDestination
> > groupings
;
3294 std::set
<CTxDestination
> grouping
;
3296 for (const auto& walletEntry
: mapWallet
)
3298 const CWalletTx
*pcoin
= &walletEntry
.second
;
3300 if (pcoin
->tx
->vin
.size() > 0)
3302 bool any_mine
= false;
3303 // group all input addresses with each other
3304 BOOST_FOREACH(CTxIn txin
, pcoin
->tx
->vin
)
3306 CTxDestination address
;
3307 if(!IsMine(txin
)) /* If this input isn't mine, ignore it */
3309 if(!ExtractDestination(mapWallet
[txin
.prevout
.hash
].tx
->vout
[txin
.prevout
.n
].scriptPubKey
, address
))
3311 grouping
.insert(address
);
3315 // group change with input addresses
3318 BOOST_FOREACH(CTxOut txout
, pcoin
->tx
->vout
)
3319 if (IsChange(txout
))
3321 CTxDestination txoutAddr
;
3322 if(!ExtractDestination(txout
.scriptPubKey
, txoutAddr
))
3324 grouping
.insert(txoutAddr
);
3327 if (grouping
.size() > 0)
3329 groupings
.insert(grouping
);
3334 // group lone addrs by themselves
3335 for (const auto& txout
: pcoin
->tx
->vout
)
3338 CTxDestination address
;
3339 if(!ExtractDestination(txout
.scriptPubKey
, address
))
3341 grouping
.insert(address
);
3342 groupings
.insert(grouping
);
3347 std::set
< std::set
<CTxDestination
>* > uniqueGroupings
; // a set of pointers to groups of addresses
3348 std::map
< CTxDestination
, std::set
<CTxDestination
>* > setmap
; // map addresses to the unique group containing it
3349 BOOST_FOREACH(std::set
<CTxDestination
> _grouping
, groupings
)
3351 // make a set of all the groups hit by this new group
3352 std::set
< std::set
<CTxDestination
>* > hits
;
3353 std::map
< CTxDestination
, std::set
<CTxDestination
>* >::iterator it
;
3354 BOOST_FOREACH(CTxDestination address
, _grouping
)
3355 if ((it
= setmap
.find(address
)) != setmap
.end())
3356 hits
.insert((*it
).second
);
3358 // merge all hit groups into a new single group and delete old groups
3359 std::set
<CTxDestination
>* merged
= new std::set
<CTxDestination
>(_grouping
);
3360 BOOST_FOREACH(std::set
<CTxDestination
>* hit
, hits
)
3362 merged
->insert(hit
->begin(), hit
->end());
3363 uniqueGroupings
.erase(hit
);
3366 uniqueGroupings
.insert(merged
);
3369 BOOST_FOREACH(CTxDestination element
, *merged
)
3370 setmap
[element
] = merged
;
3373 std::set
< std::set
<CTxDestination
> > ret
;
3374 BOOST_FOREACH(std::set
<CTxDestination
>* uniqueGrouping
, uniqueGroupings
)
3376 ret
.insert(*uniqueGrouping
);
3377 delete uniqueGrouping
;
3383 std::set
<CTxDestination
> CWallet::GetAccountAddresses(const std::string
& strAccount
) const
3386 std::set
<CTxDestination
> result
;
3387 BOOST_FOREACH(const PAIRTYPE(CTxDestination
, CAddressBookData
)& item
, mapAddressBook
)
3389 const CTxDestination
& address
= item
.first
;
3390 const std::string
& strName
= item
.second
.name
;
3391 if (strName
== strAccount
)
3392 result
.insert(address
);
3397 bool CReserveKey::GetReservedKey(CPubKey
& pubkey
, bool internal
)
3402 pwallet
->ReserveKeyFromKeyPool(nIndex
, keypool
, internal
);
3404 vchPubKey
= keypool
.vchPubKey
;
3409 assert(vchPubKey
.IsValid());
3414 void CReserveKey::KeepKey()
3417 pwallet
->KeepKey(nIndex
);
3419 vchPubKey
= CPubKey();
3422 void CReserveKey::ReturnKey()
3425 pwallet
->ReturnKey(nIndex
);
3427 vchPubKey
= CPubKey();
3430 void CWallet::GetAllReserveKeys(std::set
<CKeyID
>& setAddress
) const
3434 CWalletDB
walletdb(*dbw
);
3436 LOCK2(cs_main
, cs_wallet
);
3437 BOOST_FOREACH(const int64_t& id
, setKeyPool
)
3440 if (!walletdb
.ReadPool(id
, keypool
))
3441 throw std::runtime_error(std::string(__func__
) + ": read failed");
3442 assert(keypool
.vchPubKey
.IsValid());
3443 CKeyID keyID
= keypool
.vchPubKey
.GetID();
3444 if (!HaveKey(keyID
))
3445 throw std::runtime_error(std::string(__func__
) + ": unknown key in key pool");
3446 setAddress
.insert(keyID
);
3450 void CWallet::GetScriptForMining(std::shared_ptr
<CReserveScript
> &script
)
3452 std::shared_ptr
<CReserveKey
> rKey
= std::make_shared
<CReserveKey
>(this);
3454 if (!rKey
->GetReservedKey(pubkey
))
3458 script
->reserveScript
= CScript() << ToByteVector(pubkey
) << OP_CHECKSIG
;
3461 void CWallet::LockCoin(const COutPoint
& output
)
3463 AssertLockHeld(cs_wallet
); // setLockedCoins
3464 setLockedCoins
.insert(output
);
3467 void CWallet::UnlockCoin(const COutPoint
& output
)
3469 AssertLockHeld(cs_wallet
); // setLockedCoins
3470 setLockedCoins
.erase(output
);
3473 void CWallet::UnlockAllCoins()
3475 AssertLockHeld(cs_wallet
); // setLockedCoins
3476 setLockedCoins
.clear();
3479 bool CWallet::IsLockedCoin(uint256 hash
, unsigned int n
) const
3481 AssertLockHeld(cs_wallet
); // setLockedCoins
3482 COutPoint
outpt(hash
, n
);
3484 return (setLockedCoins
.count(outpt
) > 0);
3487 void CWallet::ListLockedCoins(std::vector
<COutPoint
>& vOutpts
) const
3489 AssertLockHeld(cs_wallet
); // setLockedCoins
3490 for (std::set
<COutPoint
>::iterator it
= setLockedCoins
.begin();
3491 it
!= setLockedCoins
.end(); it
++) {
3492 COutPoint outpt
= (*it
);
3493 vOutpts
.push_back(outpt
);
3497 /** @} */ // end of Actions
3499 class CAffectedKeysVisitor
: public boost::static_visitor
<void> {
3501 const CKeyStore
&keystore
;
3502 std::vector
<CKeyID
> &vKeys
;
3505 CAffectedKeysVisitor(const CKeyStore
&keystoreIn
, std::vector
<CKeyID
> &vKeysIn
) : keystore(keystoreIn
), vKeys(vKeysIn
) {}
3507 void Process(const CScript
&script
) {
3509 std::vector
<CTxDestination
> vDest
;
3511 if (ExtractDestinations(script
, type
, vDest
, nRequired
)) {
3512 BOOST_FOREACH(const CTxDestination
&dest
, vDest
)
3513 boost::apply_visitor(*this, dest
);
3517 void operator()(const CKeyID
&keyId
) {
3518 if (keystore
.HaveKey(keyId
))
3519 vKeys
.push_back(keyId
);
3522 void operator()(const CScriptID
&scriptId
) {
3524 if (keystore
.GetCScript(scriptId
, script
))
3528 void operator()(const CNoDestination
&none
) {}
3531 void CWallet::GetKeyBirthTimes(std::map
<CTxDestination
, int64_t> &mapKeyBirth
) const {
3532 AssertLockHeld(cs_wallet
); // mapKeyMetadata
3533 mapKeyBirth
.clear();
3535 // get birth times for keys with metadata
3536 for (const auto& entry
: mapKeyMetadata
) {
3537 if (entry
.second
.nCreateTime
) {
3538 mapKeyBirth
[entry
.first
] = entry
.second
.nCreateTime
;
3542 // map in which we'll infer heights of other keys
3543 CBlockIndex
*pindexMax
= chainActive
[std::max(0, chainActive
.Height() - 144)]; // the tip can be reorganized; use a 144-block safety margin
3544 std::map
<CKeyID
, CBlockIndex
*> mapKeyFirstBlock
;
3545 std::set
<CKeyID
> setKeys
;
3547 BOOST_FOREACH(const CKeyID
&keyid
, setKeys
) {
3548 if (mapKeyBirth
.count(keyid
) == 0)
3549 mapKeyFirstBlock
[keyid
] = pindexMax
;
3553 // if there are no such keys, we're done
3554 if (mapKeyFirstBlock
.empty())
3557 // find first block that affects those keys, if there are any left
3558 std::vector
<CKeyID
> vAffected
;
3559 for (std::map
<uint256
, CWalletTx
>::const_iterator it
= mapWallet
.begin(); it
!= mapWallet
.end(); it
++) {
3560 // iterate over all wallet transactions...
3561 const CWalletTx
&wtx
= (*it
).second
;
3562 BlockMap::const_iterator blit
= mapBlockIndex
.find(wtx
.hashBlock
);
3563 if (blit
!= mapBlockIndex
.end() && chainActive
.Contains(blit
->second
)) {
3564 // ... which are already in a block
3565 int nHeight
= blit
->second
->nHeight
;
3566 BOOST_FOREACH(const CTxOut
&txout
, wtx
.tx
->vout
) {
3567 // iterate over all their outputs
3568 CAffectedKeysVisitor(*this, vAffected
).Process(txout
.scriptPubKey
);
3569 BOOST_FOREACH(const CKeyID
&keyid
, vAffected
) {
3570 // ... and all their affected keys
3571 std::map
<CKeyID
, CBlockIndex
*>::iterator rit
= mapKeyFirstBlock
.find(keyid
);
3572 if (rit
!= mapKeyFirstBlock
.end() && nHeight
< rit
->second
->nHeight
)
3573 rit
->second
= blit
->second
;
3580 // Extract block timestamps for those keys
3581 for (std::map
<CKeyID
, CBlockIndex
*>::const_iterator it
= mapKeyFirstBlock
.begin(); it
!= mapKeyFirstBlock
.end(); it
++)
3582 mapKeyBirth
[it
->first
] = it
->second
->GetBlockTime() - TIMESTAMP_WINDOW
; // block times can be 2h off
3586 * Compute smart timestamp for a transaction being added to the wallet.
3589 * - If sending a transaction, assign its timestamp to the current time.
3590 * - If receiving a transaction outside a block, assign its timestamp to the
3592 * - If receiving a block with a future timestamp, assign all its (not already
3593 * known) transactions' timestamps to the current time.
3594 * - If receiving a block with a past timestamp, before the most recent known
3595 * transaction (that we care about), assign all its (not already known)
3596 * transactions' timestamps to the same timestamp as that most-recent-known
3598 * - If receiving a block with a past timestamp, but after the most recent known
3599 * transaction, assign all its (not already known) transactions' timestamps to
3602 * For more information see CWalletTx::nTimeSmart,
3603 * https://bitcointalk.org/?topic=54527, or
3604 * https://github.com/bitcoin/bitcoin/pull/1393.
3606 unsigned int CWallet::ComputeTimeSmart(const CWalletTx
& wtx
) const
3608 unsigned int nTimeSmart
= wtx
.nTimeReceived
;
3609 if (!wtx
.hashUnset()) {
3610 if (mapBlockIndex
.count(wtx
.hashBlock
)) {
3611 int64_t latestNow
= wtx
.nTimeReceived
;
3612 int64_t latestEntry
= 0;
3614 // Tolerate times up to the last timestamp in the wallet not more than 5 minutes into the future
3615 int64_t latestTolerated
= latestNow
+ 300;
3616 const TxItems
& txOrdered
= wtxOrdered
;
3617 for (auto it
= txOrdered
.rbegin(); it
!= txOrdered
.rend(); ++it
) {
3618 CWalletTx
* const pwtx
= it
->second
.first
;
3622 CAccountingEntry
* const pacentry
= it
->second
.second
;
3625 nSmartTime
= pwtx
->nTimeSmart
;
3627 nSmartTime
= pwtx
->nTimeReceived
;
3630 nSmartTime
= pacentry
->nTime
;
3632 if (nSmartTime
<= latestTolerated
) {
3633 latestEntry
= nSmartTime
;
3634 if (nSmartTime
> latestNow
) {
3635 latestNow
= nSmartTime
;
3641 int64_t blocktime
= mapBlockIndex
[wtx
.hashBlock
]->GetBlockTime();
3642 nTimeSmart
= std::max(latestEntry
, std::min(blocktime
, latestNow
));
3644 LogPrintf("%s: found %s in block %s not in index\n", __func__
, wtx
.GetHash().ToString(), wtx
.hashBlock
.ToString());
3650 bool CWallet::AddDestData(const CTxDestination
&dest
, const std::string
&key
, const std::string
&value
)
3652 if (boost::get
<CNoDestination
>(&dest
))
3655 mapAddressBook
[dest
].destdata
.insert(std::make_pair(key
, value
));
3656 return CWalletDB(*dbw
).WriteDestData(CBitcoinAddress(dest
).ToString(), key
, value
);
3659 bool CWallet::EraseDestData(const CTxDestination
&dest
, const std::string
&key
)
3661 if (!mapAddressBook
[dest
].destdata
.erase(key
))
3663 return CWalletDB(*dbw
).EraseDestData(CBitcoinAddress(dest
).ToString(), key
);
3666 bool CWallet::LoadDestData(const CTxDestination
&dest
, const std::string
&key
, const std::string
&value
)
3668 mapAddressBook
[dest
].destdata
.insert(std::make_pair(key
, value
));
3672 bool CWallet::GetDestData(const CTxDestination
&dest
, const std::string
&key
, std::string
*value
) const
3674 std::map
<CTxDestination
, CAddressBookData
>::const_iterator i
= mapAddressBook
.find(dest
);
3675 if(i
!= mapAddressBook
.end())
3677 CAddressBookData::StringMap::const_iterator j
= i
->second
.destdata
.find(key
);
3678 if(j
!= i
->second
.destdata
.end())
3688 std::vector
<std::string
> CWallet::GetDestValues(const std::string
& prefix
) const
3691 std::vector
<std::string
> values
;
3692 for (const auto& address
: mapAddressBook
) {
3693 for (const auto& data
: address
.second
.destdata
) {
3694 if (!data
.first
.compare(0, prefix
.size(), prefix
)) {
3695 values
.emplace_back(data
.second
);
3702 std::string
CWallet::GetWalletHelpString(bool showDebug
)
3704 std::string strUsage
= HelpMessageGroup(_("Wallet options:"));
3705 strUsage
+= HelpMessageOpt("-disablewallet", _("Do not load the wallet and disable wallet RPC calls"));
3706 strUsage
+= HelpMessageOpt("-keypool=<n>", strprintf(_("Set key pool size to <n> (default: %u)"), DEFAULT_KEYPOOL_SIZE
));
3707 strUsage
+= HelpMessageOpt("-fallbackfee=<amt>", strprintf(_("A fee rate (in %s/kB) that will be used when fee estimation has insufficient data (default: %s)"),
3708 CURRENCY_UNIT
, FormatMoney(DEFAULT_FALLBACK_FEE
)));
3709 strUsage
+= HelpMessageOpt("-mintxfee=<amt>", strprintf(_("Fees (in %s/kB) smaller than this are considered zero fee for transaction creation (default: %s)"),
3710 CURRENCY_UNIT
, FormatMoney(DEFAULT_TRANSACTION_MINFEE
)));
3711 strUsage
+= HelpMessageOpt("-paytxfee=<amt>", strprintf(_("Fee (in %s/kB) to add to transactions you send (default: %s)"),
3712 CURRENCY_UNIT
, FormatMoney(payTxFee
.GetFeePerK())));
3713 strUsage
+= HelpMessageOpt("-rescan", _("Rescan the block chain for missing wallet transactions on startup"));
3714 strUsage
+= HelpMessageOpt("-salvagewallet", _("Attempt to recover private keys from a corrupt wallet on startup"));
3715 strUsage
+= HelpMessageOpt("-spendzeroconfchange", strprintf(_("Spend unconfirmed change when sending transactions (default: %u)"), DEFAULT_SPEND_ZEROCONF_CHANGE
));
3716 strUsage
+= HelpMessageOpt("-txconfirmtarget=<n>", strprintf(_("If paytxfee is not set, include enough fee so transactions begin confirmation on average within n blocks (default: %u)"), DEFAULT_TX_CONFIRM_TARGET
));
3717 strUsage
+= HelpMessageOpt("-usehd", _("Use hierarchical deterministic key generation (HD) after BIP32. Only has effect during wallet creation/first start") + " " + strprintf(_("(default: %u)"), DEFAULT_USE_HD_WALLET
));
3718 strUsage
+= HelpMessageOpt("-walletrbf", strprintf(_("Send transactions with full-RBF opt-in enabled (default: %u)"), DEFAULT_WALLET_RBF
));
3719 strUsage
+= HelpMessageOpt("-upgradewallet", _("Upgrade wallet to latest format on startup"));
3720 strUsage
+= HelpMessageOpt("-wallet=<file>", _("Specify wallet file (within data directory)") + " " + strprintf(_("(default: %s)"), DEFAULT_WALLET_DAT
));
3721 strUsage
+= HelpMessageOpt("-walletbroadcast", _("Make the wallet broadcast transactions") + " " + strprintf(_("(default: %u)"), DEFAULT_WALLETBROADCAST
));
3722 strUsage
+= HelpMessageOpt("-walletnotify=<cmd>", _("Execute command when a wallet transaction changes (%s in cmd is replaced by TxID)"));
3723 strUsage
+= HelpMessageOpt("-zapwallettxes=<mode>", _("Delete all wallet transactions and only recover those parts of the blockchain through -rescan on startup") +
3724 " " + _("(1 = keep tx meta data e.g. account owner and payment request information, 2 = drop tx meta data)"));
3728 strUsage
+= HelpMessageGroup(_("Wallet debugging/testing options:"));
3730 strUsage
+= HelpMessageOpt("-dblogsize=<n>", strprintf("Flush wallet database activity from memory to disk log every <n> megabytes (default: %u)", DEFAULT_WALLET_DBLOGSIZE
));
3731 strUsage
+= HelpMessageOpt("-flushwallet", strprintf("Run a thread to flush wallet periodically (default: %u)", DEFAULT_FLUSHWALLET
));
3732 strUsage
+= HelpMessageOpt("-privdb", strprintf("Sets the DB_PRIVATE flag in the wallet db environment (default: %u)", DEFAULT_WALLET_PRIVDB
));
3733 strUsage
+= HelpMessageOpt("-walletrejectlongchains", strprintf(_("Wallet will not create transactions that violate mempool chain limits (default: %u)"), DEFAULT_WALLET_REJECT_LONG_CHAINS
));
3739 CWallet
* CWallet::CreateWalletFromFile(const std::string walletFile
)
3741 // needed to restore wallet transaction meta data after -zapwallettxes
3742 std::vector
<CWalletTx
> vWtx
;
3744 if (GetBoolArg("-zapwallettxes", false)) {
3745 uiInterface
.InitMessage(_("Zapping all transactions from wallet..."));
3747 std::unique_ptr
<CWalletDBWrapper
> dbw(new CWalletDBWrapper(&bitdb
, walletFile
));
3748 CWallet
*tempWallet
= new CWallet(std::move(dbw
));
3749 DBErrors nZapWalletRet
= tempWallet
->ZapWalletTx(vWtx
);
3750 if (nZapWalletRet
!= DB_LOAD_OK
) {
3751 InitError(strprintf(_("Error loading %s: Wallet corrupted"), walletFile
));
3759 uiInterface
.InitMessage(_("Loading wallet..."));
3761 int64_t nStart
= GetTimeMillis();
3762 bool fFirstRun
= true;
3763 std::unique_ptr
<CWalletDBWrapper
> dbw(new CWalletDBWrapper(&bitdb
, walletFile
));
3764 CWallet
*walletInstance
= new CWallet(std::move(dbw
));
3765 DBErrors nLoadWalletRet
= walletInstance
->LoadWallet(fFirstRun
);
3766 if (nLoadWalletRet
!= DB_LOAD_OK
)
3768 if (nLoadWalletRet
== DB_CORRUPT
) {
3769 InitError(strprintf(_("Error loading %s: Wallet corrupted"), walletFile
));
3772 else if (nLoadWalletRet
== DB_NONCRITICAL_ERROR
)
3774 InitWarning(strprintf(_("Error reading %s! All keys read correctly, but transaction data"
3775 " or address book entries might be missing or incorrect."),
3778 else if (nLoadWalletRet
== DB_TOO_NEW
) {
3779 InitError(strprintf(_("Error loading %s: Wallet requires newer version of %s"), walletFile
, _(PACKAGE_NAME
)));
3782 else if (nLoadWalletRet
== DB_NEED_REWRITE
)
3784 InitError(strprintf(_("Wallet needed to be rewritten: restart %s to complete"), _(PACKAGE_NAME
)));
3788 InitError(strprintf(_("Error loading %s"), walletFile
));
3793 if (GetBoolArg("-upgradewallet", fFirstRun
))
3795 int nMaxVersion
= GetArg("-upgradewallet", 0);
3796 if (nMaxVersion
== 0) // the -upgradewallet without argument case
3798 LogPrintf("Performing wallet upgrade to %i\n", FEATURE_LATEST
);
3799 nMaxVersion
= CLIENT_VERSION
;
3800 walletInstance
->SetMinVersion(FEATURE_LATEST
); // permanently upgrade the wallet immediately
3803 LogPrintf("Allowing wallet upgrade up to %i\n", nMaxVersion
);
3804 if (nMaxVersion
< walletInstance
->GetVersion())
3806 InitError(_("Cannot downgrade wallet"));
3809 walletInstance
->SetMaxVersion(nMaxVersion
);
3814 // Create new keyUser and set as default key
3815 if (GetBoolArg("-usehd", DEFAULT_USE_HD_WALLET
) && !walletInstance
->IsHDEnabled()) {
3817 // ensure this wallet.dat can only be opened by clients supporting HD with chain split
3818 walletInstance
->SetMinVersion(FEATURE_HD_SPLIT
);
3820 // generate a new master key
3821 CPubKey masterPubKey
= walletInstance
->GenerateNewHDMasterKey();
3822 if (!walletInstance
->SetHDMasterKey(masterPubKey
))
3823 throw std::runtime_error(std::string(__func__
) + ": Storing master key failed");
3825 CPubKey newDefaultKey
;
3826 if (walletInstance
->GetKeyFromPool(newDefaultKey
, false)) {
3827 walletInstance
->SetDefaultKey(newDefaultKey
);
3828 if (!walletInstance
->SetAddressBook(walletInstance
->vchDefaultKey
.GetID(), "", "receive")) {
3829 InitError(_("Cannot write default address") += "\n");
3834 walletInstance
->SetBestChain(chainActive
.GetLocator());
3836 else if (IsArgSet("-usehd")) {
3837 bool useHD
= GetBoolArg("-usehd", DEFAULT_USE_HD_WALLET
);
3838 if (walletInstance
->IsHDEnabled() && !useHD
) {
3839 InitError(strprintf(_("Error loading %s: You can't disable HD on a already existing HD wallet"), walletFile
));
3842 if (!walletInstance
->IsHDEnabled() && useHD
) {
3843 InitError(strprintf(_("Error loading %s: You can't enable HD on a already existing non-HD wallet"), walletFile
));
3848 LogPrintf(" wallet %15dms\n", GetTimeMillis() - nStart
);
3850 RegisterValidationInterface(walletInstance
);
3852 CBlockIndex
*pindexRescan
= chainActive
.Genesis();
3853 if (!GetBoolArg("-rescan", false))
3855 CWalletDB
walletdb(*walletInstance
->dbw
);
3856 CBlockLocator locator
;
3857 if (walletdb
.ReadBestBlock(locator
))
3858 pindexRescan
= FindForkInGlobalIndex(chainActive
, locator
);
3860 if (chainActive
.Tip() && chainActive
.Tip() != pindexRescan
)
3862 //We can't rescan beyond non-pruned blocks, stop and throw an error
3863 //this might happen if a user uses a old wallet within a pruned node
3864 // or if he ran -disablewallet for a longer time, then decided to re-enable
3867 CBlockIndex
*block
= chainActive
.Tip();
3868 while (block
&& block
->pprev
&& (block
->pprev
->nStatus
& BLOCK_HAVE_DATA
) && block
->pprev
->nTx
> 0 && pindexRescan
!= block
)
3869 block
= block
->pprev
;
3871 if (pindexRescan
!= block
) {
3872 InitError(_("Prune: last wallet synchronisation goes beyond pruned data. You need to -reindex (download the whole blockchain again in case of pruned node)"));
3877 uiInterface
.InitMessage(_("Rescanning..."));
3878 LogPrintf("Rescanning last %i blocks (from block %i)...\n", chainActive
.Height() - pindexRescan
->nHeight
, pindexRescan
->nHeight
);
3879 nStart
= GetTimeMillis();
3880 walletInstance
->ScanForWalletTransactions(pindexRescan
, true);
3881 LogPrintf(" rescan %15dms\n", GetTimeMillis() - nStart
);
3882 walletInstance
->SetBestChain(chainActive
.GetLocator());
3883 CWalletDB::IncrementUpdateCounter();
3885 // Restore wallet transaction metadata after -zapwallettxes=1
3886 if (GetBoolArg("-zapwallettxes", false) && GetArg("-zapwallettxes", "1") != "2")
3888 CWalletDB
walletdb(*walletInstance
->dbw
);
3890 BOOST_FOREACH(const CWalletTx
& wtxOld
, vWtx
)
3892 uint256 hash
= wtxOld
.GetHash();
3893 std::map
<uint256
, CWalletTx
>::iterator mi
= walletInstance
->mapWallet
.find(hash
);
3894 if (mi
!= walletInstance
->mapWallet
.end())
3896 const CWalletTx
* copyFrom
= &wtxOld
;
3897 CWalletTx
* copyTo
= &mi
->second
;
3898 copyTo
->mapValue
= copyFrom
->mapValue
;
3899 copyTo
->vOrderForm
= copyFrom
->vOrderForm
;
3900 copyTo
->nTimeReceived
= copyFrom
->nTimeReceived
;
3901 copyTo
->nTimeSmart
= copyFrom
->nTimeSmart
;
3902 copyTo
->fFromMe
= copyFrom
->fFromMe
;
3903 copyTo
->strFromAccount
= copyFrom
->strFromAccount
;
3904 copyTo
->nOrderPos
= copyFrom
->nOrderPos
;
3905 walletdb
.WriteTx(*copyTo
);
3910 walletInstance
->SetBroadcastTransactions(GetBoolArg("-walletbroadcast", DEFAULT_WALLETBROADCAST
));
3913 LOCK(walletInstance
->cs_wallet
);
3914 LogPrintf("setKeyPool.size() = %u\n", walletInstance
->GetKeyPoolSize());
3915 LogPrintf("mapWallet.size() = %u\n", walletInstance
->mapWallet
.size());
3916 LogPrintf("mapAddressBook.size() = %u\n", walletInstance
->mapAddressBook
.size());
3919 return walletInstance
;
3922 bool CWallet::InitLoadWallet()
3924 if (GetBoolArg("-disablewallet", DEFAULT_DISABLE_WALLET
)) {
3926 LogPrintf("Wallet disabled!\n");
3930 std::string walletFile
= GetArg("-wallet", DEFAULT_WALLET_DAT
);
3932 if (boost::filesystem::path(walletFile
).filename() != walletFile
) {
3933 return InitError(_("-wallet parameter must only specify a filename (not a path)"));
3934 } else if (SanitizeString(walletFile
, SAFE_CHARS_FILENAME
) != walletFile
) {
3935 return InitError(_("Invalid characters in -wallet filename"));
3938 CWallet
* const pwallet
= CreateWalletFromFile(walletFile
);
3942 pwalletMain
= pwallet
;
3947 std::atomic
<bool> CWallet::fFlushScheduled(false);
3949 void CWallet::postInitProcess(CScheduler
& scheduler
)
3951 // Add wallet transactions that aren't already in a block to mempool
3952 // Do this here as mempool requires genesis block to be loaded
3953 ReacceptWalletTransactions();
3955 // Run a thread to flush wallet periodically
3956 if (!CWallet::fFlushScheduled
.exchange(true)) {
3957 scheduler
.scheduleEvery(MaybeCompactWalletDB
, 500);
3961 bool CWallet::ParameterInteraction()
3963 if (GetBoolArg("-disablewallet", DEFAULT_DISABLE_WALLET
))
3966 if (GetBoolArg("-blocksonly", DEFAULT_BLOCKSONLY
) && SoftSetBoolArg("-walletbroadcast", false)) {
3967 LogPrintf("%s: parameter interaction: -blocksonly=1 -> setting -walletbroadcast=0\n", __func__
);
3970 if (GetBoolArg("-salvagewallet", false) && SoftSetBoolArg("-rescan", true)) {
3971 // Rewrite just private keys: rescan to find transactions
3972 LogPrintf("%s: parameter interaction: -salvagewallet=1 -> setting -rescan=1\n", __func__
);
3975 // -zapwallettx implies a rescan
3976 if (GetBoolArg("-zapwallettxes", false) && SoftSetBoolArg("-rescan", true)) {
3977 LogPrintf("%s: parameter interaction: -zapwallettxes=<mode> -> setting -rescan=1\n", __func__
);
3980 if (GetBoolArg("-sysperms", false))
3981 return InitError("-sysperms is not allowed in combination with enabled wallet functionality");
3982 if (GetArg("-prune", 0) && GetBoolArg("-rescan", false))
3983 return InitError(_("Rescans are not possible in pruned mode. You will need to use -reindex which will download the whole blockchain again."));
3985 if (::minRelayTxFee
.GetFeePerK() > HIGH_TX_FEE_PER_KB
)
3986 InitWarning(AmountHighWarn("-minrelaytxfee") + " " +
3987 _("The wallet will avoid paying less than the minimum relay fee."));
3989 if (IsArgSet("-mintxfee"))
3992 if (!ParseMoney(GetArg("-mintxfee", ""), n
) || 0 == n
)
3993 return InitError(AmountErrMsg("mintxfee", GetArg("-mintxfee", "")));
3994 if (n
> HIGH_TX_FEE_PER_KB
)
3995 InitWarning(AmountHighWarn("-mintxfee") + " " +
3996 _("This is the minimum transaction fee you pay on every transaction."));
3997 CWallet::minTxFee
= CFeeRate(n
);
3999 if (IsArgSet("-fallbackfee"))
4001 CAmount nFeePerK
= 0;
4002 if (!ParseMoney(GetArg("-fallbackfee", ""), nFeePerK
))
4003 return InitError(strprintf(_("Invalid amount for -fallbackfee=<amount>: '%s'"), GetArg("-fallbackfee", "")));
4004 if (nFeePerK
> HIGH_TX_FEE_PER_KB
)
4005 InitWarning(AmountHighWarn("-fallbackfee") + " " +
4006 _("This is the transaction fee you may pay when fee estimates are not available."));
4007 CWallet::fallbackFee
= CFeeRate(nFeePerK
);
4009 if (IsArgSet("-paytxfee"))
4011 CAmount nFeePerK
= 0;
4012 if (!ParseMoney(GetArg("-paytxfee", ""), nFeePerK
))
4013 return InitError(AmountErrMsg("paytxfee", GetArg("-paytxfee", "")));
4014 if (nFeePerK
> HIGH_TX_FEE_PER_KB
)
4015 InitWarning(AmountHighWarn("-paytxfee") + " " +
4016 _("This is the transaction fee you will pay if you send a transaction."));
4018 payTxFee
= CFeeRate(nFeePerK
, 1000);
4019 if (payTxFee
< ::minRelayTxFee
)
4021 return InitError(strprintf(_("Invalid amount for -paytxfee=<amount>: '%s' (must be at least %s)"),
4022 GetArg("-paytxfee", ""), ::minRelayTxFee
.ToString()));
4025 if (IsArgSet("-maxtxfee"))
4027 CAmount nMaxFee
= 0;
4028 if (!ParseMoney(GetArg("-maxtxfee", ""), nMaxFee
))
4029 return InitError(AmountErrMsg("maxtxfee", GetArg("-maxtxfee", "")));
4030 if (nMaxFee
> HIGH_MAX_TX_FEE
)
4031 InitWarning(_("-maxtxfee is set very high! Fees this large could be paid on a single transaction."));
4033 if (CFeeRate(maxTxFee
, 1000) < ::minRelayTxFee
)
4035 return InitError(strprintf(_("Invalid amount for -maxtxfee=<amount>: '%s' (must be at least the minrelay fee of %s to prevent stuck transactions)"),
4036 GetArg("-maxtxfee", ""), ::minRelayTxFee
.ToString()));
4039 nTxConfirmTarget
= GetArg("-txconfirmtarget", DEFAULT_TX_CONFIRM_TARGET
);
4040 bSpendZeroConfChange
= GetBoolArg("-spendzeroconfchange", DEFAULT_SPEND_ZEROCONF_CHANGE
);
4041 fWalletRbf
= GetBoolArg("-walletrbf", DEFAULT_WALLET_RBF
);
4046 bool CWallet::BackupWallet(const std::string
& strDest
)
4048 return dbw
->Backup(strDest
);
4051 CKeyPool::CKeyPool()
4057 CKeyPool::CKeyPool(const CPubKey
& vchPubKeyIn
, bool internalIn
)
4060 vchPubKey
= vchPubKeyIn
;
4061 fInternal
= internalIn
;
4064 CWalletKey::CWalletKey(int64_t nExpires
)
4066 nTimeCreated
= (nExpires
? GetTime() : 0);
4067 nTimeExpires
= nExpires
;
4070 void CMerkleTx::SetMerkleBranch(const CBlockIndex
* pindex
, int posInBlock
)
4072 // Update the tx's hashBlock
4073 hashBlock
= pindex
->GetBlockHash();
4075 // set the position of the transaction in the block
4076 nIndex
= posInBlock
;
4079 int CMerkleTx::GetDepthInMainChain(const CBlockIndex
* &pindexRet
) const
4084 AssertLockHeld(cs_main
);
4086 // Find the block it claims to be in
4087 BlockMap::iterator mi
= mapBlockIndex
.find(hashBlock
);
4088 if (mi
== mapBlockIndex
.end())
4090 CBlockIndex
* pindex
= (*mi
).second
;
4091 if (!pindex
|| !chainActive
.Contains(pindex
))
4095 return ((nIndex
== -1) ? (-1) : 1) * (chainActive
.Height() - pindex
->nHeight
+ 1);
4098 int CMerkleTx::GetBlocksToMaturity() const
4102 return std::max(0, (COINBASE_MATURITY
+1) - GetDepthInMainChain());
4106 bool CMerkleTx::AcceptToMemoryPool(const CAmount
& nAbsurdFee
, CValidationState
& state
)
4108 return ::AcceptToMemoryPool(mempool
, state
, tx
, true, NULL
, NULL
, false, nAbsurdFee
);