1 // Copyright (c) 2009-2010 Satoshi Nakamoto
2 // Copyright (c) 2009-2012 The Bitcoin developers
3 // Distributed under the MIT/X11 software license, see the accompanying
4 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
10 #include "ui_interface.h"
13 #include "coincontrol.h"
14 #include <boost/algorithm/string/replace.hpp>
17 extern int nStakeMaxAge;
20 //////////////////////////////////////////////////////////////////////////////
25 struct CompareValueOnly
27 bool operator()(const pair<int64, pair<const CWalletTx*, unsigned int> >& t1,
28 const pair<int64, pair<const CWalletTx*, unsigned int> >& t2) const
30 return t1.first < t2.first;
34 CPubKey CWallet::GenerateNewKey()
36 bool fCompressed = CanSupportFeature(FEATURE_COMPRPUBKEY); // default to compressed public keys if we want 0.6.0 wallets
40 key.MakeNewKey(fCompressed);
42 // Compressed public keys were introduced in version 0.6.0
44 SetMinVersion(FEATURE_COMPRPUBKEY);
46 CPubKey pubkey = key.GetPubKey();
48 // Create new metadata
49 int64 nCreationTime = GetTime();
50 mapKeyMetadata[pubkey.GetID()] = CKeyMetadata(nCreationTime);
51 if (!nTimeFirstKey || nCreationTime < nTimeFirstKey)
52 nTimeFirstKey = nCreationTime;
55 throw std::runtime_error("CWallet::GenerateNewKey() : AddKey failed");
56 return key.GetPubKey();
59 bool CWallet::AddKey(const CKey& key)
61 CPubKey pubkey = key.GetPubKey();
63 if (!CCryptoKeyStore::AddKey(key))
68 return CWalletDB(strWalletFile).WriteKey(pubkey, key.GetPrivKey(), mapKeyMetadata[pubkey.GetID()]);
72 bool CWallet::AddCryptedKey(const CPubKey &vchPubKey, const vector<unsigned char> &vchCryptedSecret)
74 if (!CCryptoKeyStore::AddCryptedKey(vchPubKey, vchCryptedSecret))
80 if (pwalletdbEncryption)
81 return pwalletdbEncryption->WriteCryptedKey(vchPubKey, vchCryptedSecret, mapKeyMetadata[vchPubKey.GetID()]);
83 return CWalletDB(strWalletFile).WriteCryptedKey(vchPubKey, vchCryptedSecret, mapKeyMetadata[vchPubKey.GetID()]);
88 bool CWallet::LoadKeyMetadata(const CPubKey &pubkey, const CKeyMetadata &meta)
90 if (meta.nCreateTime && (!nTimeFirstKey || meta.nCreateTime < nTimeFirstKey))
91 nTimeFirstKey = meta.nCreateTime;
93 mapKeyMetadata[pubkey.GetID()] = meta;
97 bool CWallet::AddCScript(const CScript& redeemScript)
99 if (!CCryptoKeyStore::AddCScript(redeemScript))
103 return CWalletDB(strWalletFile).WriteCScript(Hash160(redeemScript), redeemScript);
106 // ppcoin: optional setting to unlock wallet for block minting only;
107 // serves to disable the trivial sendmoney when OS account compromised
108 bool fWalletUnlockMintOnly = false;
110 bool CWallet::Unlock(const SecureString& strWalletPassphrase)
116 CKeyingMaterial vMasterKey;
120 BOOST_FOREACH(const MasterKeyMap::value_type& pMasterKey, mapMasterKeys)
122 if(!crypter.SetKeyFromPassphrase(strWalletPassphrase, pMasterKey.second.vchSalt, pMasterKey.second.nDeriveIterations, pMasterKey.second.nDerivationMethod))
124 if (!crypter.Decrypt(pMasterKey.second.vchCryptedKey, vMasterKey))
126 if (CCryptoKeyStore::Unlock(vMasterKey))
133 bool CWallet::ChangeWalletPassphrase(const SecureString& strOldWalletPassphrase, const SecureString& strNewWalletPassphrase)
135 bool fWasLocked = IsLocked();
142 CKeyingMaterial vMasterKey;
143 BOOST_FOREACH(MasterKeyMap::value_type& pMasterKey, mapMasterKeys)
145 if(!crypter.SetKeyFromPassphrase(strOldWalletPassphrase, pMasterKey.second.vchSalt, pMasterKey.second.nDeriveIterations, pMasterKey.second.nDerivationMethod))
147 if (!crypter.Decrypt(pMasterKey.second.vchCryptedKey, vMasterKey))
149 if (CCryptoKeyStore::Unlock(vMasterKey))
151 int64 nStartTime = GetTimeMillis();
152 crypter.SetKeyFromPassphrase(strNewWalletPassphrase, pMasterKey.second.vchSalt, pMasterKey.second.nDeriveIterations, pMasterKey.second.nDerivationMethod);
153 pMasterKey.second.nDeriveIterations = pMasterKey.second.nDeriveIterations * (100 / ((double)(GetTimeMillis() - nStartTime)));
155 nStartTime = GetTimeMillis();
156 crypter.SetKeyFromPassphrase(strNewWalletPassphrase, pMasterKey.second.vchSalt, pMasterKey.second.nDeriveIterations, pMasterKey.second.nDerivationMethod);
157 pMasterKey.second.nDeriveIterations = (pMasterKey.second.nDeriveIterations + pMasterKey.second.nDeriveIterations * 100 / ((double)(GetTimeMillis() - nStartTime))) / 2;
159 if (pMasterKey.second.nDeriveIterations < 25000)
160 pMasterKey.second.nDeriveIterations = 25000;
162 printf("Wallet passphrase changed to an nDeriveIterations of %i\n", pMasterKey.second.nDeriveIterations);
164 if (!crypter.SetKeyFromPassphrase(strNewWalletPassphrase, pMasterKey.second.vchSalt, pMasterKey.second.nDeriveIterations, pMasterKey.second.nDerivationMethod))
166 if (!crypter.Encrypt(vMasterKey, pMasterKey.second.vchCryptedKey))
168 CWalletDB(strWalletFile).WriteMasterKey(pMasterKey.first, pMasterKey.second);
179 void CWallet::SetBestChain(const CBlockLocator& loc)
181 CWalletDB walletdb(strWalletFile);
182 walletdb.WriteBestBlock(loc);
185 // This class implements an addrIncoming entry that causes pre-0.4
186 // clients to crash on startup if reading a private-key-encrypted wallet.
187 class CCorruptAddress
192 if (nType & SER_DISK)
197 bool CWallet::SetMinVersion(enum WalletFeature nVersion, CWalletDB* pwalletdbIn, bool fExplicit)
199 if (nWalletVersion >= nVersion)
202 // when doing an explicit upgrade, if we pass the max version permitted, upgrade all the way
203 if (fExplicit && nVersion > nWalletMaxVersion)
204 nVersion = FEATURE_LATEST;
206 nWalletVersion = nVersion;
208 if (nVersion > nWalletMaxVersion)
209 nWalletMaxVersion = nVersion;
213 CWalletDB* pwalletdb = pwalletdbIn ? pwalletdbIn : new CWalletDB(strWalletFile);
214 if (nWalletVersion >= 40000)
216 // Versions prior to 0.4.0 did not support the "minversion" record.
217 // Use a CCorruptAddress to make them crash instead.
218 CCorruptAddress corruptAddress;
219 pwalletdb->WriteSetting("addrIncoming", corruptAddress);
221 if (nWalletVersion > 40000)
222 pwalletdb->WriteMinVersion(nWalletVersion);
230 bool CWallet::SetMaxVersion(int nVersion)
232 // cannot downgrade below current version
233 if (nWalletVersion > nVersion)
236 nWalletMaxVersion = nVersion;
241 bool CWallet::EncryptWallet(const SecureString& strWalletPassphrase)
246 CKeyingMaterial vMasterKey;
247 RandAddSeedPerfmon();
249 vMasterKey.resize(WALLET_CRYPTO_KEY_SIZE);
250 RAND_bytes(&vMasterKey[0], WALLET_CRYPTO_KEY_SIZE);
252 CMasterKey kMasterKey(nDerivationMethodIndex);
254 RandAddSeedPerfmon();
255 kMasterKey.vchSalt.resize(WALLET_CRYPTO_SALT_SIZE);
256 RAND_bytes(&kMasterKey.vchSalt[0], WALLET_CRYPTO_SALT_SIZE);
259 int64 nStartTime = GetTimeMillis();
260 crypter.SetKeyFromPassphrase(strWalletPassphrase, kMasterKey.vchSalt, 25000, kMasterKey.nDerivationMethod);
261 kMasterKey.nDeriveIterations = 2500000 / ((double)(GetTimeMillis() - nStartTime));
263 nStartTime = GetTimeMillis();
264 crypter.SetKeyFromPassphrase(strWalletPassphrase, kMasterKey.vchSalt, kMasterKey.nDeriveIterations, kMasterKey.nDerivationMethod);
265 kMasterKey.nDeriveIterations = (kMasterKey.nDeriveIterations + kMasterKey.nDeriveIterations * 100 / ((double)(GetTimeMillis() - nStartTime))) / 2;
267 if (kMasterKey.nDeriveIterations < 25000)
268 kMasterKey.nDeriveIterations = 25000;
270 printf("Encrypting Wallet with an nDeriveIterations of %i\n", kMasterKey.nDeriveIterations);
272 if (!crypter.SetKeyFromPassphrase(strWalletPassphrase, kMasterKey.vchSalt, kMasterKey.nDeriveIterations, kMasterKey.nDerivationMethod))
274 if (!crypter.Encrypt(vMasterKey, kMasterKey.vchCryptedKey))
279 mapMasterKeys[++nMasterKeyMaxID] = kMasterKey;
282 pwalletdbEncryption = new CWalletDB(strWalletFile);
283 if (!pwalletdbEncryption->TxnBegin())
285 pwalletdbEncryption->WriteMasterKey(nMasterKeyMaxID, kMasterKey);
288 if (!EncryptKeys(vMasterKey))
291 pwalletdbEncryption->TxnAbort();
292 exit(1); //We now probably have half of our keys encrypted in memory, and half not...die and let the user reload their unencrypted wallet.
295 // Encryption was introduced in version 0.4.0
296 SetMinVersion(FEATURE_WALLETCRYPT, pwalletdbEncryption, true);
300 if (!pwalletdbEncryption->TxnCommit())
301 exit(1); //We now have keys encrypted in memory, but no on disk...die to avoid confusion and let the user reload their unencrypted wallet.
303 delete pwalletdbEncryption;
304 pwalletdbEncryption = NULL;
308 Unlock(strWalletPassphrase);
312 // Need to completely rewrite the wallet file; if we don't, bdb might keep
313 // bits of the unencrypted private key in slack space in the database file.
314 CDB::Rewrite(strWalletFile);
317 NotifyStatusChanged(this);
322 int64 CWallet::IncOrderPosNext(CWalletDB *pwalletdb)
324 int64 nRet = nOrderPosNext++;
326 pwalletdb->WriteOrderPosNext(nOrderPosNext);
328 CWalletDB(strWalletFile).WriteOrderPosNext(nOrderPosNext);
333 CWallet::TxItems CWallet::OrderedTxItems(std::list<CAccountingEntry>& acentries, std::string strAccount)
335 CWalletDB walletdb(strWalletFile);
337 // First: get all CWalletTx and CAccountingEntry into a sorted-by-order multimap.
340 // Note: maintaining indices in the database of (account,time) --> txid and (account, time) --> acentry
341 // would make this much faster for applications that do this a lot.
342 for (map<uint256, CWalletTx>::iterator it = mapWallet.begin(); it != mapWallet.end(); ++it)
344 CWalletTx* wtx = &((*it).second);
345 txOrdered.insert(make_pair(wtx->nOrderPos, TxPair(wtx, (CAccountingEntry*)0)));
348 walletdb.ListAccountCreditDebit(strAccount, acentries);
349 BOOST_FOREACH(CAccountingEntry& entry, acentries)
351 txOrdered.insert(make_pair(entry.nOrderPos, TxPair((CWalletTx*)0, &entry)));
357 void CWallet::WalletUpdateSpent(const CTransaction &tx)
359 // Anytime a signature is successfully verified, it's proof the outpoint is spent.
360 // Update the wallet spent flag if it doesn't know due to wallet.dat being
361 // restored from backup or the user making copies of wallet.dat.
364 BOOST_FOREACH(const CTxIn& txin, tx.vin)
366 map<uint256, CWalletTx>::iterator mi = mapWallet.find(txin.prevout.hash);
367 if (mi != mapWallet.end())
369 CWalletTx& wtx = (*mi).second;
370 if (txin.prevout.n >= wtx.vout.size())
371 printf("WalletUpdateSpent: bad wtx %s\n", wtx.GetHash().ToString().c_str());
372 else if (!wtx.IsSpent(txin.prevout.n) && IsMine(wtx.vout[txin.prevout.n]))
374 printf("WalletUpdateSpent found spent coin %snvc %s\n", FormatMoney(wtx.GetCredit()).c_str(), wtx.GetHash().ToString().c_str());
375 wtx.MarkSpent(txin.prevout.n);
377 NotifyTransactionChanged(this, txin.prevout.hash, CT_UPDATED);
384 void CWallet::MarkDirty()
388 BOOST_FOREACH(PAIRTYPE(const uint256, CWalletTx)& item, mapWallet)
389 item.second.MarkDirty();
393 bool CWallet::AddToWallet(const CWalletTx& wtxIn)
395 uint256 hash = wtxIn.GetHash();
398 // Inserts only if not already there, returns tx inserted or tx found
399 pair<map<uint256, CWalletTx>::iterator, bool> ret = mapWallet.insert(make_pair(hash, wtxIn));
400 CWalletTx& wtx = (*ret.first).second;
401 wtx.BindWallet(this);
402 bool fInsertedNew = ret.second;
405 wtx.nTimeReceived = GetAdjustedTime();
406 wtx.nOrderPos = IncOrderPosNext();
408 wtx.nTimeSmart = wtx.nTimeReceived;
409 if (wtxIn.hashBlock != 0)
411 if (mapBlockIndex.count(wtxIn.hashBlock))
413 unsigned int latestNow = wtx.nTimeReceived;
414 unsigned int latestEntry = 0;
416 // Tolerate times up to the last timestamp in the wallet not more than 5 minutes into the future
417 int64 latestTolerated = latestNow + 300;
418 std::list<CAccountingEntry> acentries;
419 TxItems txOrdered = OrderedTxItems(acentries);
420 for (TxItems::reverse_iterator it = txOrdered.rbegin(); it != txOrdered.rend(); ++it)
422 CWalletTx *const pwtx = (*it).second.first;
425 CAccountingEntry *const pacentry = (*it).second.second;
429 nSmartTime = pwtx->nTimeSmart;
431 nSmartTime = pwtx->nTimeReceived;
434 nSmartTime = pacentry->nTime;
435 if (nSmartTime <= latestTolerated)
437 latestEntry = nSmartTime;
438 if (nSmartTime > latestNow)
439 latestNow = nSmartTime;
445 unsigned int& blocktime = mapBlockIndex[wtxIn.hashBlock]->nTime;
446 wtx.nTimeSmart = std::max(latestEntry, std::min(blocktime, latestNow));
449 printf("AddToWallet() : found %s in block %s not in index\n",
450 wtxIn.GetHash().ToString().substr(0,10).c_str(),
451 wtxIn.hashBlock.ToString().c_str());
455 bool fUpdated = false;
459 if (wtxIn.hashBlock != 0 && wtxIn.hashBlock != wtx.hashBlock)
461 wtx.hashBlock = wtxIn.hashBlock;
464 if (wtxIn.nIndex != -1 && (wtxIn.vMerkleBranch != wtx.vMerkleBranch || wtxIn.nIndex != wtx.nIndex))
466 wtx.vMerkleBranch = wtxIn.vMerkleBranch;
467 wtx.nIndex = wtxIn.nIndex;
470 if (wtxIn.fFromMe && wtxIn.fFromMe != wtx.fFromMe)
472 wtx.fFromMe = wtxIn.fFromMe;
475 fUpdated |= wtx.UpdateSpent(wtxIn.vfSpent);
479 printf("AddToWallet %s %s%s\n", wtxIn.GetHash().ToString().substr(0,10).c_str(), (fInsertedNew ? "new" : ""), (fUpdated ? "update" : ""));
482 if (fInsertedNew || fUpdated)
483 if (!wtx.WriteToDisk())
486 // If default receiving address gets used, replace it with a new one
487 CScript scriptDefaultKey;
488 scriptDefaultKey.SetDestination(vchDefaultKey.GetID());
489 BOOST_FOREACH(const CTxOut& txout, wtx.vout)
491 if (txout.scriptPubKey == scriptDefaultKey)
493 CPubKey newDefaultKey;
494 if (GetKeyFromPool(newDefaultKey, false))
496 SetDefaultKey(newDefaultKey);
497 SetAddressBookName(vchDefaultKey.GetID(), "");
502 // since AddToWallet is called directly for self-originating transactions, check for consumption of own coins
503 WalletUpdateSpent(wtx);
505 // Notify UI of new or updated transaction
506 NotifyTransactionChanged(this, hash, fInsertedNew ? CT_NEW : CT_UPDATED);
508 // notify an external script when a wallet transaction comes in or is updated
509 std::string strCmd = GetArg("-walletnotify", "");
511 if ( !strCmd.empty())
513 boost::replace_all(strCmd, "%s", wtxIn.GetHash().GetHex());
514 boost::thread t(runCommand, strCmd); // thread runs free
521 // Add a transaction to the wallet, or update it.
522 // pblock is optional, but should be provided if the transaction is known to be in a block.
523 // If fUpdate is true, existing transactions will be updated.
524 bool CWallet::AddToWalletIfInvolvingMe(const CTransaction& tx, const CBlock* pblock, bool fUpdate, bool fFindBlock)
526 uint256 hash = tx.GetHash();
529 bool fExisted = mapWallet.count(hash);
530 if (fExisted && !fUpdate) return false;
531 if (fExisted || IsMine(tx) || IsFromMe(tx))
533 CWalletTx wtx(this,tx);
534 // Get merkle branch if transaction was found in a block
536 wtx.SetMerkleBranch(pblock);
537 return AddToWallet(wtx);
540 WalletUpdateSpent(tx);
545 bool CWallet::EraseFromWallet(uint256 hash)
551 if (mapWallet.erase(hash))
552 CWalletDB(strWalletFile).EraseTx(hash);
558 bool CWallet::IsMine(const CTxIn &txin) const
562 map<uint256, CWalletTx>::const_iterator mi = mapWallet.find(txin.prevout.hash);
563 if (mi != mapWallet.end())
565 const CWalletTx& prev = (*mi).second;
566 if (txin.prevout.n < prev.vout.size())
567 if (IsMine(prev.vout[txin.prevout.n]))
574 int64 CWallet::GetDebit(const CTxIn &txin) const
578 map<uint256, CWalletTx>::const_iterator mi = mapWallet.find(txin.prevout.hash);
579 if (mi != mapWallet.end())
581 const CWalletTx& prev = (*mi).second;
582 if (txin.prevout.n < prev.vout.size())
583 if (IsMine(prev.vout[txin.prevout.n]))
584 return prev.vout[txin.prevout.n].nValue;
590 bool CWallet::IsChange(const CTxOut& txout) const
592 CTxDestination address;
594 // TODO: fix handling of 'change' outputs. The assumption is that any
595 // payment to a TX_PUBKEYHASH that is mine but isn't in the address book
596 // is change. That assumption is likely to break when we implement multisignature
597 // wallets that return change back into a multi-signature-protected address;
598 // a better way of identifying which outputs are 'the send' and which are
599 // 'the change' will need to be implemented (maybe extend CWalletTx to remember
600 // which output, if any, was change).
601 if (ExtractDestination(txout.scriptPubKey, address) && ::IsMine(*this, address))
604 if (!mapAddressBook.count(address))
610 int64 CWalletTx::GetTxTime() const
612 int64 n = nTimeSmart;
613 return n ? n : nTimeReceived;
616 int CWalletTx::GetRequestCount() const
618 // Returns -1 if it wasn't being tracked
621 LOCK(pwallet->cs_wallet);
622 if (IsCoinBase() || IsCoinStake())
627 map<uint256, int>::const_iterator mi = pwallet->mapRequestCount.find(hashBlock);
628 if (mi != pwallet->mapRequestCount.end())
629 nRequests = (*mi).second;
634 // Did anyone request this transaction?
635 map<uint256, int>::const_iterator mi = pwallet->mapRequestCount.find(GetHash());
636 if (mi != pwallet->mapRequestCount.end())
638 nRequests = (*mi).second;
640 // How about the block it's in?
641 if (nRequests == 0 && hashBlock != 0)
643 map<uint256, int>::const_iterator mi = pwallet->mapRequestCount.find(hashBlock);
644 if (mi != pwallet->mapRequestCount.end())
645 nRequests = (*mi).second;
647 nRequests = 1; // If it's in someone else's block it must have got out
655 void CWalletTx::GetAmounts(int64& nGeneratedImmature, int64& nGeneratedMature, list<pair<CTxDestination, int64> >& listReceived,
656 list<pair<CTxDestination, int64> >& listSent, int64& nFee, string& strSentAccount) const
658 nGeneratedImmature = nGeneratedMature = nFee = 0;
659 listReceived.clear();
661 strSentAccount = strFromAccount;
663 if (IsCoinBase() || IsCoinStake())
665 if (GetBlocksToMaturity() > 0)
666 nGeneratedImmature = pwallet->GetCredit(*this);
668 nGeneratedMature = GetCredit();
673 int64 nDebit = GetDebit();
674 if (nDebit > 0) // debit>0 means we signed/sent this transaction
676 int64 nValueOut = GetValueOut();
677 nFee = nDebit - nValueOut;
681 BOOST_FOREACH(const CTxOut& txout, vout)
683 CTxDestination address;
684 vector<unsigned char> vchPubKey;
685 if (!ExtractDestination(txout.scriptPubKey, address))
687 printf("CWalletTx::GetAmounts: Unknown transaction type found, txid %s\n",
688 this->GetHash().ToString().c_str());
691 // Don't report 'change' txouts
692 if (nDebit > 0 && pwallet->IsChange(txout))
696 listSent.push_back(make_pair(address, txout.nValue));
698 if (pwallet->IsMine(txout))
699 listReceived.push_back(make_pair(address, txout.nValue));
704 void CWalletTx::GetAccountAmounts(const string& strAccount, int64& nGenerated, int64& nReceived,
705 int64& nSent, int64& nFee) const
707 nGenerated = nReceived = nSent = nFee = 0;
709 int64 allGeneratedImmature, allGeneratedMature, allFee;
710 allGeneratedImmature = allGeneratedMature = allFee = 0;
711 string strSentAccount;
712 list<pair<CTxDestination, int64> > listReceived;
713 list<pair<CTxDestination, int64> > listSent;
714 GetAmounts(allGeneratedImmature, allGeneratedMature, listReceived, listSent, allFee, strSentAccount);
716 if (strAccount == "")
717 nGenerated = allGeneratedMature;
718 if (strAccount == strSentAccount)
720 BOOST_FOREACH(const PAIRTYPE(CTxDestination,int64)& s, listSent)
725 LOCK(pwallet->cs_wallet);
726 BOOST_FOREACH(const PAIRTYPE(CTxDestination,int64)& r, listReceived)
728 if (pwallet->mapAddressBook.count(r.first))
730 map<CTxDestination, string>::const_iterator mi = pwallet->mapAddressBook.find(r.first);
731 if (mi != pwallet->mapAddressBook.end() && (*mi).second == strAccount)
732 nReceived += r.second;
734 else if (strAccount.empty())
736 nReceived += r.second;
742 void CWalletTx::AddSupportingTransactions()
746 const int COPY_DEPTH = 3;
747 if (SetMerkleBranch() < COPY_DEPTH)
749 vector<uint256> vWorkQueue;
750 BOOST_FOREACH(const CTxIn& txin, vin)
751 vWorkQueue.push_back(txin.prevout.hash);
754 LOCK(pwallet->cs_wallet);
755 map<uint256, const CMerkleTx*> mapWalletPrev;
756 set<uint256> setAlreadyDone;
757 for (unsigned int i = 0; i < vWorkQueue.size(); i++)
759 uint256 hash = vWorkQueue[i];
760 if (setAlreadyDone.count(hash))
762 setAlreadyDone.insert(hash);
765 map<uint256, CWalletTx>::const_iterator mi = pwallet->mapWallet.find(hash);
766 if (mi != pwallet->mapWallet.end())
769 BOOST_FOREACH(const CMerkleTx& txWalletPrev, (*mi).second.vtxPrev)
770 mapWalletPrev[txWalletPrev.GetHash()] = &txWalletPrev;
772 else if (mapWalletPrev.count(hash))
774 tx = *mapWalletPrev[hash];
777 int nDepth = tx.SetMerkleBranch();
778 vtxPrev.push_back(tx);
780 if (nDepth < COPY_DEPTH)
782 BOOST_FOREACH(const CTxIn& txin, tx.vin)
783 vWorkQueue.push_back(txin.prevout.hash);
789 reverse(vtxPrev.begin(), vtxPrev.end());
792 bool CWalletTx::WriteToDisk()
794 return CWalletDB(pwallet->strWalletFile).WriteTx(GetHash(), *this);
797 // Scan the block chain (starting in pindexStart) for transactions
798 // from or to us. If fUpdate is true, found transactions that already
799 // exist in the wallet will be updated.
800 int CWallet::ScanForWalletTransactions(CBlockIndex* pindexStart, bool fUpdate)
804 CBlockIndex* pindex = pindexStart;
810 block.ReadFromDisk(pindex, true);
811 BOOST_FOREACH(CTransaction& tx, block.vtx)
813 if (AddToWalletIfInvolvingMe(tx, &block, fUpdate))
816 pindex = pindex->pnext;
822 void CWallet::ReacceptWalletTransactions()
824 CCoinsDB coinsdb("r");
830 bool fMissing = false;
831 BOOST_FOREACH(PAIRTYPE(const uint256, CWalletTx)& item, mapWallet)
833 CWalletTx& wtx = item.second;
834 if (wtx.IsCoinBase() && wtx.IsSpent(0))
838 bool fUpdated = false;
839 bool fNotFound = coinsdb.ReadCoins(wtx.GetHash(), coins);
840 if (!fNotFound || wtx.GetDepthInMainChain() > 0)
842 // Update fSpent if a tx got spent somewhere else by a copy of wallet.dat
843 for (unsigned int i = 0; i < wtx.vout.size(); i++)
847 if ((i >= coins.vout.size() || coins.vout[i].IsNull()) && IsMine(wtx.vout[i]))
856 printf("ReacceptWalletTransactions found spent coin %sbc %s\n", FormatMoney(wtx.GetCredit()).c_str(), wtx.GetHash().ToString().c_str());
863 // Re-accept any txes of ours that aren't already in a block
864 if (!wtx.IsCoinBase())
865 wtx.AcceptWalletTransaction(coinsdb, false);
870 // TODO: optimize this to scan just part of the block chain?
871 if (ScanForWalletTransactions(pindexGenesisBlock))
872 fRepeat = true; // Found missing transactions: re-do re-accept.
877 void CWalletTx::RelayWalletTransaction(CCoinsDB& coinsdb)
879 BOOST_FOREACH(const CMerkleTx& tx, vtxPrev)
881 if (!tx.IsCoinBase())
883 uint256 hash = tx.GetHash();
884 if (!coinsdb.HaveCoins(hash))
885 RelayTransaction((CTransaction)tx, hash);
890 uint256 hash = GetHash();
891 if (!coinsdb.HaveCoins(hash))
893 printf("Relaying wtx %s\n", hash.ToString().substr(0,10).c_str());
894 RelayTransaction((CTransaction)*this, hash);
899 void CWalletTx::RelayWalletTransaction()
901 CCoinsDB coinsdb("r");
902 RelayWalletTransaction(coinsdb);
905 void CWallet::ResendWalletTransactions()
907 // Do this infrequently and randomly to avoid giving away
908 // that these are our transactions.
909 static int64 nNextTime;
910 if (GetTime() < nNextTime)
912 bool fFirst = (nNextTime == 0);
913 nNextTime = GetTime() + GetRand(30 * 60);
917 // Only do it if there's been a new block since last time
918 static int64 nLastTime;
919 if (nTimeBestReceived < nLastTime)
921 nLastTime = GetTime();
923 // Rebroadcast any of our txes that aren't in a block yet
924 printf("ResendWalletTransactions()\n");
925 CCoinsDB coinsdb("r");
928 // Sort them in chronological order
929 multimap<unsigned int, CWalletTx*> mapSorted;
930 BOOST_FOREACH(PAIRTYPE(const uint256, CWalletTx)& item, mapWallet)
932 CWalletTx& wtx = item.second;
933 // Don't rebroadcast until it's had plenty of time that
934 // it should have gotten in already by now.
935 if (nTimeBestReceived - (int64)wtx.nTimeReceived > 5 * 60)
936 mapSorted.insert(make_pair(wtx.nTimeReceived, &wtx));
938 BOOST_FOREACH(PAIRTYPE(const unsigned int, CWalletTx*)& item, mapSorted)
940 CWalletTx& wtx = *item.second;
941 wtx.RelayWalletTransaction(coinsdb);
951 //////////////////////////////////////////////////////////////////////////////
957 int64 CWallet::GetBalance() const
962 for (map<uint256, CWalletTx>::const_iterator it = mapWallet.begin(); it != mapWallet.end(); ++it)
964 const CWalletTx* pcoin = &(*it).second;
965 if (pcoin->IsConfirmed())
966 nTotal += pcoin->GetAvailableCredit();
973 int64 CWallet::GetUnconfirmedBalance() const
978 for (map<uint256, CWalletTx>::const_iterator it = mapWallet.begin(); it != mapWallet.end(); ++it)
980 const CWalletTx* pcoin = &(*it).second;
981 if (!pcoin->IsFinal() || !pcoin->IsConfirmed())
982 nTotal += pcoin->GetAvailableCredit();
988 int64 CWallet::GetImmatureBalance() const
993 for (map<uint256, CWalletTx>::const_iterator it = mapWallet.begin(); it != mapWallet.end(); ++it)
995 const CWalletTx& pcoin = (*it).second;
996 if (pcoin.IsCoinBase() && pcoin.GetBlocksToMaturity() > 0 && pcoin.IsInMainChain())
997 nTotal += GetCredit(pcoin);
1003 // populate vCoins with vector of spendable COutputs
1004 void CWallet::AvailableCoins(vector<COutput>& vCoins, bool fOnlyConfirmed, const CCoinControl *coinControl) const
1010 for (map<uint256, CWalletTx>::const_iterator it = mapWallet.begin(); it != mapWallet.end(); ++it)
1012 const CWalletTx* pcoin = &(*it).second;
1014 if (!pcoin->IsFinal())
1017 if (fOnlyConfirmed && !pcoin->IsConfirmed())
1020 if (pcoin->IsCoinBase() && pcoin->GetBlocksToMaturity() > 0)
1023 if(pcoin->IsCoinStake() && pcoin->GetBlocksToMaturity() > 0)
1026 for (unsigned int i = 0; i < pcoin->vout.size(); i++)
1027 if (!(pcoin->IsSpent(i)) && IsMine(pcoin->vout[i]) && pcoin->vout[i].nValue >= nMinimumInputValue &&
1028 (!coinControl || !coinControl->HasSelected() || coinControl->IsSelected((*it).first, i)))
1029 vCoins.push_back(COutput(pcoin, i, pcoin->GetDepthInMainChain()));
1035 void CWallet::AvailableCoinsMinConf(vector<COutput>& vCoins, int nConf) const
1041 for (map<uint256, CWalletTx>::const_iterator it = mapWallet.begin(); it != mapWallet.end(); ++it)
1043 const CWalletTx* pcoin = &(*it).second;
1045 if (!pcoin->IsFinal())
1048 if(pcoin->GetDepthInMainChain() < nConf)
1051 for (unsigned int i = 0; i < pcoin->vout.size(); i++)
1052 if (!(pcoin->IsSpent(i)) && IsMine(pcoin->vout[i]) && pcoin->vout[i].nValue >= nMinimumInputValue)
1053 vCoins.push_back(COutput(pcoin, i, pcoin->GetDepthInMainChain()));
1058 static void ApproximateBestSubset(vector<pair<int64, pair<const CWalletTx*,unsigned int> > >vValue, int64 nTotalLower, int64 nTargetValue,
1059 vector<char>& vfBest, int64& nBest, int iterations = 1000)
1061 vector<char> vfIncluded;
1063 vfBest.assign(vValue.size(), true);
1064 nBest = nTotalLower;
1066 for (int nRep = 0; nRep < iterations && nBest != nTargetValue; nRep++)
1068 vfIncluded.assign(vValue.size(), false);
1070 bool fReachedTarget = false;
1071 for (int nPass = 0; nPass < 2 && !fReachedTarget; nPass++)
1073 for (unsigned int i = 0; i < vValue.size(); i++)
1075 if (nPass == 0 ? rand() % 2 : !vfIncluded[i])
1077 nTotal += vValue[i].first;
1078 vfIncluded[i] = true;
1079 if (nTotal >= nTargetValue)
1081 fReachedTarget = true;
1085 vfBest = vfIncluded;
1087 nTotal -= vValue[i].first;
1088 vfIncluded[i] = false;
1096 // ppcoin: total coins staked (non-spendable until maturity)
1097 int64 CWallet::GetStake() const
1101 for (map<uint256, CWalletTx>::const_iterator it = mapWallet.begin(); it != mapWallet.end(); ++it)
1103 const CWalletTx* pcoin = &(*it).second;
1104 if (pcoin->IsCoinStake() && pcoin->GetBlocksToMaturity() > 0 && pcoin->GetDepthInMainChain() > 0)
1105 nTotal += CWallet::GetCredit(*pcoin);
1110 int64 CWallet::GetNewMint() const
1114 for (map<uint256, CWalletTx>::const_iterator it = mapWallet.begin(); it != mapWallet.end(); ++it)
1116 const CWalletTx* pcoin = &(*it).second;
1117 if (pcoin->IsCoinBase() && pcoin->GetBlocksToMaturity() > 0 && pcoin->GetDepthInMainChain() > 0)
1118 nTotal += CWallet::GetCredit(*pcoin);
1123 bool CWallet::SelectCoinsMinConf(int64 nTargetValue, unsigned int nSpendTime, int nConfMine, int nConfTheirs, vector<COutput> vCoins, set<pair<const CWalletTx*,unsigned int> >& setCoinsRet, int64& nValueRet) const
1125 setCoinsRet.clear();
1128 // List of values less than target
1129 pair<int64, pair<const CWalletTx*,unsigned int> > coinLowestLarger;
1130 coinLowestLarger.first = std::numeric_limits<int64>::max();
1131 coinLowestLarger.second.first = NULL;
1132 vector<pair<int64, pair<const CWalletTx*,unsigned int> > > vValue;
1133 int64 nTotalLower = 0;
1135 random_shuffle(vCoins.begin(), vCoins.end(), GetRandInt);
1137 BOOST_FOREACH(COutput output, vCoins)
1139 const CWalletTx *pcoin = output.tx;
1141 if (output.nDepth < (pcoin->IsFromMe() ? nConfMine : nConfTheirs))
1146 // Follow the timestamp rules
1147 if (pcoin->nTime > nSpendTime)
1150 int64 n = pcoin->vout[i].nValue;
1152 pair<int64,pair<const CWalletTx*,unsigned int> > coin = make_pair(n,make_pair(pcoin, i));
1154 if (n == nTargetValue)
1156 setCoinsRet.insert(coin.second);
1157 nValueRet += coin.first;
1160 else if (n < nTargetValue + CENT)
1162 vValue.push_back(coin);
1165 else if (n < coinLowestLarger.first)
1167 coinLowestLarger = coin;
1171 if (nTotalLower == nTargetValue)
1173 for (unsigned int i = 0; i < vValue.size(); ++i)
1175 setCoinsRet.insert(vValue[i].second);
1176 nValueRet += vValue[i].first;
1181 if (nTotalLower < nTargetValue)
1183 if (coinLowestLarger.second.first == NULL)
1185 setCoinsRet.insert(coinLowestLarger.second);
1186 nValueRet += coinLowestLarger.first;
1190 // Solve subset sum by stochastic approximation
1191 sort(vValue.rbegin(), vValue.rend(), CompareValueOnly());
1192 vector<char> vfBest;
1195 ApproximateBestSubset(vValue, nTotalLower, nTargetValue, vfBest, nBest, 1000);
1196 if (nBest != nTargetValue && nTotalLower >= nTargetValue + CENT)
1197 ApproximateBestSubset(vValue, nTotalLower, nTargetValue + CENT, vfBest, nBest, 1000);
1199 // If we have a bigger coin and (either the stochastic approximation didn't find a good solution,
1200 // or the next bigger coin is closer), return the bigger coin
1201 if (coinLowestLarger.second.first &&
1202 ((nBest != nTargetValue && nBest < nTargetValue + CENT) || coinLowestLarger.first <= nBest))
1204 setCoinsRet.insert(coinLowestLarger.second);
1205 nValueRet += coinLowestLarger.first;
1208 for (unsigned int i = 0; i < vValue.size(); i++)
1211 setCoinsRet.insert(vValue[i].second);
1212 nValueRet += vValue[i].first;
1215 if (fDebug && GetBoolArg("-printpriority"))
1218 printf("SelectCoins() best subset: ");
1219 for (unsigned int i = 0; i < vValue.size(); i++)
1221 printf("%s ", FormatMoney(vValue[i].first).c_str());
1222 printf("total %s\n", FormatMoney(nBest).c_str());
1229 bool CWallet::SelectCoins(int64 nTargetValue, unsigned int nSpendTime, set<pair<const CWalletTx*,unsigned int> >& setCoinsRet, int64& nValueRet, const CCoinControl* coinControl) const
1231 vector<COutput> vCoins;
1232 AvailableCoins(vCoins, true, coinControl);
1234 // coin control -> return all selected outputs (we want all selected to go into the transaction for sure)
1235 if (coinControl && coinControl->HasSelected())
1237 BOOST_FOREACH(const COutput& out, vCoins)
1239 nValueRet += out.tx->vout[out.i].nValue;
1240 setCoinsRet.insert(make_pair(out.tx, out.i));
1242 return (nValueRet >= nTargetValue);
1245 return (SelectCoinsMinConf(nTargetValue, nSpendTime, 1, 6, vCoins, setCoinsRet, nValueRet) ||
1246 SelectCoinsMinConf(nTargetValue, nSpendTime, 1, 1, vCoins, setCoinsRet, nValueRet) ||
1247 SelectCoinsMinConf(nTargetValue, nSpendTime, 0, 1, vCoins, setCoinsRet, nValueRet));
1250 // Select some coins without random shuffle or best subset approximation
1251 bool CWallet::SelectCoinsSimple(int64 nTargetValue, unsigned int nSpendTime, int nMinConf, set<pair<const CWalletTx*,unsigned int> >& setCoinsRet, int64& nValueRet) const
1253 vector<COutput> vCoins;
1254 AvailableCoinsMinConf(vCoins, nMinConf);
1256 setCoinsRet.clear();
1259 BOOST_FOREACH(COutput output, vCoins)
1261 const CWalletTx *pcoin = output.tx;
1264 // Stop if we've chosen enough inputs
1265 if (nValueRet >= nTargetValue)
1268 // Follow the timestamp rules
1269 if (pcoin->nTime > nSpendTime)
1272 int64 n = pcoin->vout[i].nValue;
1274 pair<int64,pair<const CWalletTx*,unsigned int> > coin = make_pair(n,make_pair(pcoin, i));
1276 if (n >= nTargetValue)
1278 // If input value is greater or equal to target then simply insert
1279 // it into the current subset and exit
1280 setCoinsRet.insert(coin.second);
1281 nValueRet += coin.first;
1284 else if (n < nTargetValue + CENT)
1286 setCoinsRet.insert(coin.second);
1287 nValueRet += coin.first;
1294 bool CWallet::CreateTransaction(const vector<pair<CScript, int64> >& vecSend, CWalletTx& wtxNew, CReserveKey& reservekey, int64& nFeeRet, const CCoinControl* coinControl)
1297 BOOST_FOREACH (const PAIRTYPE(CScript, int64)& s, vecSend)
1303 if (vecSend.empty() || nValue < 0)
1306 wtxNew.BindWallet(this);
1309 LOCK2(cs_main, cs_wallet);
1311 nFeeRet = nTransactionFee;
1315 wtxNew.vout.clear();
1316 wtxNew.fFromMe = true;
1318 int64 nTotalValue = nValue + nFeeRet;
1319 double dPriority = 0;
1320 // vouts to the payees
1321 BOOST_FOREACH (const PAIRTYPE(CScript, int64)& s, vecSend)
1322 wtxNew.vout.push_back(CTxOut(s.second, s.first));
1324 // Choose coins to use
1325 set<pair<const CWalletTx*,unsigned int> > setCoins;
1327 if (!SelectCoins(nTotalValue, wtxNew.nTime, setCoins, nValueIn, coinControl))
1329 BOOST_FOREACH(PAIRTYPE(const CWalletTx*, unsigned int) pcoin, setCoins)
1331 int64 nCredit = pcoin.first->vout[pcoin.second].nValue;
1332 dPriority += (double)nCredit * pcoin.first->GetDepthInMainChain();
1335 int64 nChange = nValueIn - nValue - nFeeRet;
1336 // if sub-cent change is required, the fee must be raised to at least MIN_TX_FEE
1337 // or until nChange becomes zero
1338 // NOTE: this depends on the exact behaviour of GetMinFee
1339 if (nFeeRet < MIN_TX_FEE && nChange > 0 && nChange < CENT)
1341 int64 nMoveToFee = min(nChange, MIN_TX_FEE - nFeeRet);
1342 nChange -= nMoveToFee;
1343 nFeeRet += nMoveToFee;
1346 // sub-cent change is moved to fee
1347 if (nChange > 0 && nChange < MIN_TXOUT_AMOUNT)
1355 // Fill a vout to ourself
1356 // TODO: pass in scriptChange instead of reservekey so
1357 // change transaction isn't always pay-to-bitcoin-address
1358 CScript scriptChange;
1360 // coin control: send change to custom address
1361 if (coinControl && !boost::get<CNoDestination>(&coinControl->destChange))
1362 scriptChange.SetDestination(coinControl->destChange);
1364 // no coin control: send change to newly generated address
1367 // Note: We use a new key here to keep it from being obvious which side is the change.
1368 // The drawback is that by not reusing a previous key, the change may be lost if a
1369 // backup is restored, if the backup doesn't have the new private key for the change.
1370 // If we reused the old key, it would be possible to add code to look for and
1371 // rediscover unknown transactions that were written with keys of ours to recover
1372 // post-backup change.
1374 // Reserve a new key pair from key pool
1375 CPubKey vchPubKey = reservekey.GetReservedKey();
1377 scriptChange.SetDestination(vchPubKey.GetID());
1380 // Insert change txn at random position:
1381 vector<CTxOut>::iterator position = wtxNew.vout.begin()+GetRandInt(wtxNew.vout.size());
1382 wtxNew.vout.insert(position, CTxOut(nChange, scriptChange));
1385 reservekey.ReturnKey();
1388 BOOST_FOREACH(const PAIRTYPE(const CWalletTx*,unsigned int)& coin, setCoins)
1389 wtxNew.vin.push_back(CTxIn(coin.first->GetHash(),coin.second));
1393 BOOST_FOREACH(const PAIRTYPE(const CWalletTx*,unsigned int)& coin, setCoins)
1394 if (!SignSignature(*this, *coin.first, wtxNew, nIn++))
1398 unsigned int nBytes = ::GetSerializeSize(*(CTransaction*)&wtxNew, SER_NETWORK, PROTOCOL_VERSION);
1399 if (nBytes >= MAX_BLOCK_SIZE_GEN/5)
1401 dPriority /= nBytes;
1403 // Check that enough fee is included
1404 int64 nPayFee = nTransactionFee * (1 + (int64)nBytes / 1000);
1405 bool fAllowFree = CTransaction::AllowFree(dPriority);
1406 int64 nMinFee = wtxNew.GetMinFee(1, fAllowFree, GMF_SEND);
1407 if (nFeeRet < max(nPayFee, nMinFee))
1409 nFeeRet = max(nPayFee, nMinFee);
1413 // Fill vtxPrev by copying from previous transactions vtxPrev
1414 wtxNew.AddSupportingTransactions();
1415 wtxNew.fTimeReceivedIsTxTime = true;
1424 bool CWallet::CreateTransaction(CScript scriptPubKey, int64 nValue, CWalletTx& wtxNew, CReserveKey& reservekey, int64& nFeeRet, const CCoinControl* coinControl)
1426 vector< pair<CScript, int64> > vecSend;
1427 vecSend.push_back(make_pair(scriptPubKey, nValue));
1428 return CreateTransaction(vecSend, wtxNew, reservekey, nFeeRet, coinControl);
1431 // NovaCoin: get current stake weight
1432 bool CWallet::GetStakeWeight(const CKeyStore& keystore, uint64& nMinWeight, uint64& nMaxWeight, uint64& nWeight)
1434 // Choose coins to use
1435 int64 nBalance = GetBalance();
1436 int64 nReserveBalance = 0;
1438 if (mapArgs.count("-reservebalance") && !ParseMoney(mapArgs["-reservebalance"], nReserveBalance))
1440 error("GetStakeWeight : invalid reserve balance amount");
1444 if (nBalance <= nReserveBalance)
1447 vector<const CWalletTx*> vwtxPrev;
1450 * TODO: performance comparison
1452 static set<pair<const CWalletTx*,unsigned int> > setCoins;
1453 static uint256 hashPrevBlock;
1454 static int64 nValueIn = 0;
1456 // Cache outputs unless best block changed
1457 if (hashPrevBlock != pindexBest->GetBlockHash())
1459 if (!SelectCoinsSimple(nBalance - nReserveBalance, GetAdjustedTime(), nCoinbaseMaturity * 10, setCoins, nValueIn))
1462 if (setCoins.empty())
1465 hashPrevBlock == pindexBest->GetBlockHash();
1469 set<pair<const CWalletTx*,unsigned int> > setCoins;
1472 if (!SelectCoinsSimple(nBalance - nReserveBalance, GetTime(), nCoinbaseMaturity * 10, setCoins, nValueIn))
1475 if (setCoins.empty())
1478 CCoinsDB coinsdb("r");
1479 CCoinsViewDB view(coinsdb);
1480 BOOST_FOREACH(PAIRTYPE(const CWalletTx*, unsigned int) pcoin, setCoins)
1484 LOCK2(cs_main, cs_wallet);
1485 if (!view.GetCoins(pcoin.first->GetHash(), coins))
1489 int64 nTimeWeight = GetWeight((int64)pcoin.first->nTime, (int64)GetTime());
1490 CBigNum bnCoinDayWeight = CBigNum(pcoin.first->vout[pcoin.second].nValue) * nTimeWeight / COIN / (24 * 60 * 60);
1492 // Weight is greater than zero
1493 if (nTimeWeight > 0)
1495 nWeight += bnCoinDayWeight.getuint64();
1498 // Weight is greater than zero, but the maximum value isn't reached yet
1499 if (nTimeWeight > 0 && nTimeWeight < nStakeMaxAge)
1501 nMinWeight += bnCoinDayWeight.getuint64();
1504 // Maximum weight was reached
1505 if (nTimeWeight == nStakeMaxAge)
1507 nMaxWeight += bnCoinDayWeight.getuint64();
1514 bool CWallet::CreateCoinStake(const CKeyStore& keystore, unsigned int nBits, int64 nSearchInterval, CTransaction& txNew, CKey& key)
1516 // The following combine threshold is important to security
1517 // Should not be adjusted if you don't understand the consequences
1518 int64 nCombineThreshold = GetProofOfWorkReward(GetLastBlockIndex(pindexBest, false)->nBits) / 3;
1520 CBigNum bnTargetPerCoinDay;
1521 bnTargetPerCoinDay.SetCompact(nBits);
1526 // Mark coin stake transaction
1527 CScript scriptEmpty;
1528 scriptEmpty.clear();
1529 txNew.vout.push_back(CTxOut(0, scriptEmpty));
1531 // Choose coins to use
1532 int64 nBalance = GetBalance();
1533 int64 nReserveBalance = 0;
1535 if (mapArgs.count("-reservebalance") && !ParseMoney(mapArgs["-reservebalance"], nReserveBalance))
1536 return error("CreateCoinStake : invalid reserve balance amount");
1538 if (nBalance <= nReserveBalance)
1541 vector<const CWalletTx*> vwtxPrev;
1544 * TODO: performance comparison
1546 static set<pair<const CWalletTx*,unsigned int> > setCoins;
1547 static uint256 hashPrevBlock;
1548 static int64 nValueIn = 0;
1550 // Cache outputs unless best block changed
1551 if (hashPrevBlock != pindexBest->GetBlockHash())
1553 if (!SelectCoinsSimple(nBalance - nReserveBalance, txNew.nTime, nCoinbaseMaturity * 10, setCoins, nValueIn))
1556 if (setCoins.empty())
1559 hashPrevBlock == pindexBest->GetBlockHash();
1563 set<pair<const CWalletTx*,unsigned int> > setCoins;
1566 // Select coins with suitable depth
1567 if (!SelectCoinsSimple(nBalance - nReserveBalance, txNew.nTime, nCoinbaseMaturity * 10, setCoins, nValueIn))
1570 if (setCoins.empty())
1574 CScript scriptPubKeyKernel;
1576 CCoinsDB coinsdb("r");
1577 CCoinsViewDB view(coinsdb);
1578 BOOST_FOREACH(PAIRTYPE(const CWalletTx*, unsigned int) pcoin, setCoins)
1582 LOCK2(cs_main, cs_wallet);
1583 if (!view.GetCoins(pcoin.first->GetHash(), coins))
1587 static int nMaxStakeSearchInterval = 60;
1588 if (coins.nBlockTime + nStakeMinAge > txNew.nTime - nMaxStakeSearchInterval)
1589 continue; // only count coins meeting min age requirement
1591 // Read block header
1593 unsigned int nTxPos = 0;
1595 LOCK2(cs_main, cs_wallet);
1596 CBlockIndex *pindex = FindBlockByHeight(coins.nHeight);
1598 if (!block.ReadFromDisk(pindex))
1601 BOOST_FOREACH(const CTransaction &tx, block.vtx) {
1602 if (tx.GetHash() == pcoin.first->GetHash()) {
1605 nTxPos += tx.GetSerializeSize(SER_DISK, CLIENT_VERSION);
1607 nTxPos += GetSerializeSize(CBlock(), SER_DISK, CLIENT_VERSION) - (2 * GetSizeOfCompactSize(0)) + GetSizeOfCompactSize(block.vtx.size());
1611 bool fKernelFound = false;
1612 for (unsigned int n=0; n<min(nSearchInterval,(int64)nMaxStakeSearchInterval) && !fKernelFound && !fShutdown; n++)
1614 // Search backward in time from the given txNew timestamp
1615 // Search nSearchInterval seconds back up to nMaxStakeSearchInterval
1616 uint256 hashProofOfStake = 0, targetProofOfStake = 0;
1617 COutPoint prevoutStake = COutPoint(pcoin.first->GetHash(), pcoin.second);
1618 if (CheckStakeKernelHash(nBits, block, nTxPos, *pcoin.first, prevoutStake, txNew.nTime - n, hashProofOfStake, targetProofOfStake))
1621 if (fDebug && GetBoolArg("-printcoinstake"))
1622 printf("CreateCoinStake : kernel found\n");
1623 vector<valtype> vSolutions;
1624 txnouttype whichType;
1625 CScript scriptPubKeyOut;
1626 scriptPubKeyKernel = pcoin.first->vout[pcoin.second].scriptPubKey;
1627 if (!Solver(scriptPubKeyKernel, whichType, vSolutions))
1629 if (fDebug && GetBoolArg("-printcoinstake"))
1630 printf("CreateCoinStake : failed to parse kernel\n");
1633 if (fDebug && GetBoolArg("-printcoinstake"))
1634 printf("CreateCoinStake : parsed kernel type=%d\n", whichType);
1635 if (whichType != TX_PUBKEY && whichType != TX_PUBKEYHASH)
1637 if (fDebug && GetBoolArg("-printcoinstake"))
1638 printf("CreateCoinStake : no support for kernel type=%d\n", whichType);
1639 break; // only support pay to public key and pay to address
1641 if (whichType == TX_PUBKEYHASH) // pay to address type
1643 // convert to pay to public key type
1644 if (!keystore.GetKey(uint160(vSolutions[0]), key))
1646 if (fDebug && GetBoolArg("-printcoinstake"))
1647 printf("CreateCoinStake : failed to get key for kernel type=%d\n", whichType);
1648 break; // unable to find corresponding public key
1650 scriptPubKeyOut << key.GetPubKey() << OP_CHECKSIG;
1652 if (whichType == TX_PUBKEY)
1654 valtype& vchPubKey = vSolutions[0];
1655 if (!keystore.GetKey(Hash160(vchPubKey), key))
1657 if (fDebug && GetBoolArg("-printcoinstake"))
1658 printf("CreateCoinStake : failed to get key for kernel type=%d\n", whichType);
1659 break; // unable to find corresponding public key
1662 if (key.GetPubKey() != vchPubKey)
1664 if (fDebug && GetBoolArg("-printcoinstake"))
1665 printf("CreateCoinStake : invalid key for kernel type=%d\n", whichType);
1666 break; // keys mismatch
1669 scriptPubKeyOut = scriptPubKeyKernel;
1673 txNew.vin.push_back(CTxIn(pcoin.first->GetHash(), pcoin.second));
1674 nCredit += pcoin.first->vout[pcoin.second].nValue;
1675 vwtxPrev.push_back(pcoin.first);
1676 txNew.vout.push_back(CTxOut(0, scriptPubKeyOut));
1678 if (GetWeight(block.GetBlockTime(), (int64)txNew.nTime) < nStakeMaxAge)
1679 txNew.vout.push_back(CTxOut(0, scriptPubKeyOut)); //split stake
1680 if (fDebug && GetBoolArg("-printcoinstake"))
1681 printf("CreateCoinStake : added kernel type=%d\n", whichType);
1682 fKernelFound = true;
1687 if (fKernelFound || fShutdown)
1688 break; // if kernel is found stop searching
1691 if (nCredit == 0 || nCredit > nBalance - nReserveBalance)
1694 BOOST_FOREACH(PAIRTYPE(const CWalletTx*, unsigned int) pcoin, setCoins)
1696 // Attempt to add more inputs
1697 // Only add coins of the same key/address as kernel
1698 if (txNew.vout.size() == 2 && ((pcoin.first->vout[pcoin.second].scriptPubKey == scriptPubKeyKernel || pcoin.first->vout[pcoin.second].scriptPubKey == txNew.vout[1].scriptPubKey))
1699 && pcoin.first->GetHash() != txNew.vin[0].prevout.hash)
1701 int64 nTimeWeight = GetWeight((int64)pcoin.first->nTime, (int64)txNew.nTime);
1703 // Stop adding more inputs if already too many inputs
1704 if (txNew.vin.size() >= 100)
1706 // Stop adding more inputs if value is already pretty significant
1707 if (nCredit > nCombineThreshold)
1709 // Stop adding inputs if reached reserve limit
1710 if (nCredit + pcoin.first->vout[pcoin.second].nValue > nBalance - nReserveBalance)
1712 // Do not add additional significant input
1713 if (pcoin.first->vout[pcoin.second].nValue > nCombineThreshold)
1715 // Do not add input that is still too young
1716 if (nTimeWeight < nStakeMaxAge)
1719 txNew.vin.push_back(CTxIn(pcoin.first->GetHash(), pcoin.second));
1720 nCredit += pcoin.first->vout[pcoin.second].nValue;
1721 vwtxPrev.push_back(pcoin.first);
1725 // Calculate coin age reward
1729 CCoinsDB coindb("r");
1730 CCoinsViewDB view(coindb);
1732 if (!txNew.GetCoinAge(view, nCoinAge))
1733 return error("CreateCoinStake : failed to calculate coin age");
1734 nCredit += GetProofOfStakeReward(nCoinAge, nBits, txNew.nTime);
1740 // Set output amount
1741 if (txNew.vout.size() == 3)
1743 txNew.vout[1].nValue = ((nCredit - nMinFee) / 2 / CENT) * CENT;
1744 txNew.vout[2].nValue = nCredit - nMinFee - txNew.vout[1].nValue;
1747 txNew.vout[1].nValue = nCredit - nMinFee;
1751 BOOST_FOREACH(const CWalletTx* pcoin, vwtxPrev)
1753 if (!SignSignature(*this, *pcoin, txNew, nIn++))
1754 return error("CreateCoinStake : failed to sign coinstake");
1758 unsigned int nBytes = ::GetSerializeSize(txNew, SER_NETWORK, PROTOCOL_VERSION);
1759 if (nBytes >= MAX_BLOCK_SIZE_GEN/5)
1760 return error("CreateCoinStake : exceeded coinstake size limit");
1762 // Check enough fee is paid
1763 if (nMinFee < txNew.GetMinFee() - MIN_TX_FEE)
1765 nMinFee = txNew.GetMinFee() - MIN_TX_FEE;
1766 continue; // try signing again
1770 if (fDebug && GetBoolArg("-printfee"))
1771 printf("CreateCoinStake : fee for coinstake %s\n", FormatMoney(nMinFee).c_str());
1776 // Successfully generated coinstake
1781 // Call after CreateTransaction unless you want to abort
1782 bool CWallet::CommitTransaction(CWalletTx& wtxNew, CReserveKey& reservekey)
1785 LOCK2(cs_main, cs_wallet);
1786 printf("CommitTransaction:\n%s", wtxNew.ToString().c_str());
1788 // This is only to keep the database open to defeat the auto-flush for the
1789 // duration of this scope. This is the only place where this optimization
1790 // maybe makes sense; please don't do it anywhere else.
1791 CWalletDB* pwalletdb = fFileBacked ? new CWalletDB(strWalletFile,"r") : NULL;
1793 // Take key pair from key pool so it won't be used again
1794 reservekey.KeepKey();
1796 // Add tx to wallet, because if it has change it's also ours,
1797 // otherwise just for transaction history.
1798 AddToWallet(wtxNew);
1800 // Mark old coins as spent
1801 set<CWalletTx*> setCoins;
1802 BOOST_FOREACH(const CTxIn& txin, wtxNew.vin)
1804 CWalletTx &coin = mapWallet[txin.prevout.hash];
1805 coin.BindWallet(this);
1806 coin.MarkSpent(txin.prevout.n);
1808 NotifyTransactionChanged(this, coin.GetHash(), CT_UPDATED);
1815 // Track how many getdata requests our transaction gets
1816 mapRequestCount[wtxNew.GetHash()] = 0;
1819 if (!wtxNew.AcceptToMemoryPool())
1821 // This must not fail. The transaction has already been signed and recorded.
1822 printf("CommitTransaction() : Error: Transaction not valid");
1825 wtxNew.RelayWalletTransaction();
1833 string CWallet::SendMoney(CScript scriptPubKey, int64 nValue, CWalletTx& wtxNew, bool fAskFee)
1835 CReserveKey reservekey(this);
1840 string strError = _("Error: Wallet locked, unable to create transaction ");
1841 printf("SendMoney() : %s", strError.c_str());
1844 if (fWalletUnlockMintOnly)
1846 string strError = _("Error: Wallet unlocked for block minting only, unable to create transaction.");
1847 printf("SendMoney() : %s", strError.c_str());
1850 if (!CreateTransaction(scriptPubKey, nValue, wtxNew, reservekey, nFeeRequired))
1853 if (nValue + nFeeRequired > GetBalance())
1854 strError = strprintf(_("Error: This transaction requires a transaction fee of at least %s because of its amount, complexity, or use of recently received funds "), FormatMoney(nFeeRequired).c_str());
1856 strError = _("Error: Transaction creation failed ");
1857 printf("SendMoney() : %s", strError.c_str());
1861 if (fAskFee && !uiInterface.ThreadSafeAskFee(nFeeRequired, _("Sending...")))
1864 if (!CommitTransaction(wtxNew, reservekey))
1865 return _("Error: The transaction was rejected. This might happen if some of the coins in your wallet were already spent, such as if you used a copy of wallet.dat and coins were spent in the copy but not marked as spent here.");
1872 string CWallet::SendMoneyToDestination(const CTxDestination& address, int64 nValue, CWalletTx& wtxNew, bool fAskFee)
1876 return _("Invalid amount");
1877 if (nValue + nTransactionFee > GetBalance())
1878 return _("Insufficient funds");
1880 // Parse Bitcoin address
1881 CScript scriptPubKey;
1882 scriptPubKey.SetDestination(address);
1884 return SendMoney(scriptPubKey, nValue, wtxNew, fAskFee);
1890 DBErrors CWallet::LoadWallet(bool& fFirstRunRet)
1894 fFirstRunRet = false;
1895 DBErrors nLoadWalletRet = CWalletDB(strWalletFile,"cr+").LoadWallet(this);
1896 if (nLoadWalletRet == DB_NEED_REWRITE)
1898 if (CDB::Rewrite(strWalletFile, "\x04pool"))
1901 // Note: can't top-up keypool here, because wallet is locked.
1902 // User will be prompted to unlock wallet the next operation
1903 // the requires a new key.
1907 if (nLoadWalletRet != DB_LOAD_OK)
1908 return nLoadWalletRet;
1909 fFirstRunRet = !vchDefaultKey.IsValid();
1911 NewThread(ThreadFlushWalletDB, &strWalletFile);
1916 bool CWallet::SetAddressBookName(const CTxDestination& address, const string& strName)
1918 std::map<CTxDestination, std::string>::iterator mi = mapAddressBook.find(address);
1919 mapAddressBook[address] = strName;
1920 NotifyAddressBookChanged(this, address, strName, ::IsMine(*this, address), (mi == mapAddressBook.end()) ? CT_NEW : CT_UPDATED);
1923 return CWalletDB(strWalletFile).WriteName(CBitcoinAddress(address).ToString(), strName);
1926 bool CWallet::DelAddressBookName(const CTxDestination& address)
1928 mapAddressBook.erase(address);
1929 NotifyAddressBookChanged(this, address, "", ::IsMine(*this, address), CT_DELETED);
1932 return CWalletDB(strWalletFile).EraseName(CBitcoinAddress(address).ToString());
1936 void CWallet::PrintWallet(const CBlock& block)
1940 if (block.IsProofOfWork() && mapWallet.count(block.vtx[0].GetHash()))
1942 CWalletTx& wtx = mapWallet[block.vtx[0].GetHash()];
1943 printf(" mine: %d %d %"PRI64d"", wtx.GetDepthInMainChain(), wtx.GetBlocksToMaturity(), wtx.GetCredit());
1945 if (block.IsProofOfStake() && mapWallet.count(block.vtx[1].GetHash()))
1947 CWalletTx& wtx = mapWallet[block.vtx[1].GetHash()];
1948 printf(" stake: %d %d %"PRI64d"", wtx.GetDepthInMainChain(), wtx.GetBlocksToMaturity(), wtx.GetCredit());
1955 bool CWallet::GetTransaction(const uint256 &hashTx, CWalletTx& wtx)
1959 map<uint256, CWalletTx>::iterator mi = mapWallet.find(hashTx);
1960 if (mi != mapWallet.end())
1969 bool CWallet::SetDefaultKey(const CPubKey &vchPubKey)
1973 if (!CWalletDB(strWalletFile).WriteDefaultKey(vchPubKey))
1976 vchDefaultKey = vchPubKey;
1980 bool GetWalletFile(CWallet* pwallet, string &strWalletFileOut)
1982 if (!pwallet->fFileBacked)
1984 strWalletFileOut = pwallet->strWalletFile;
1989 // Mark old keypool keys as used,
1990 // and generate all new keys
1992 bool CWallet::NewKeyPool()
1996 CWalletDB walletdb(strWalletFile);
1997 BOOST_FOREACH(int64 nIndex, setKeyPool)
1998 walletdb.ErasePool(nIndex);
2004 int64 nKeys = max(GetArg("-keypool", 100), (int64)0);
2005 for (int i = 0; i < nKeys; i++)
2008 walletdb.WritePool(nIndex, CKeyPool(GenerateNewKey()));
2009 setKeyPool.insert(nIndex);
2011 printf("CWallet::NewKeyPool wrote %"PRI64d" new keys\n", nKeys);
2016 bool CWallet::TopUpKeyPool(unsigned int nSize)
2024 CWalletDB walletdb(strWalletFile);
2027 unsigned int nTargetSize;
2029 nTargetSize = nSize;
2031 nTargetSize = max(GetArg("-keypool", 100), 0LL);
2033 while (setKeyPool.size() < (nTargetSize + 1))
2036 if (!setKeyPool.empty())
2037 nEnd = *(--setKeyPool.end()) + 1;
2038 if (!walletdb.WritePool(nEnd, CKeyPool(GenerateNewKey())))
2039 throw runtime_error("TopUpKeyPool() : writing generated key failed");
2040 setKeyPool.insert(nEnd);
2041 printf("keypool added key %"PRI64d", size=%"PRIszu"\n", nEnd, setKeyPool.size());
2047 void CWallet::ReserveKeyFromKeyPool(int64& nIndex, CKeyPool& keypool)
2050 keypool.vchPubKey = CPubKey();
2057 // Get the oldest key
2058 if(setKeyPool.empty())
2061 CWalletDB walletdb(strWalletFile);
2063 nIndex = *(setKeyPool.begin());
2064 setKeyPool.erase(setKeyPool.begin());
2065 if (!walletdb.ReadPool(nIndex, keypool))
2066 throw runtime_error("ReserveKeyFromKeyPool() : read failed");
2067 if (!HaveKey(keypool.vchPubKey.GetID()))
2068 throw runtime_error("ReserveKeyFromKeyPool() : unknown key in key pool");
2069 assert(keypool.vchPubKey.IsValid());
2070 if (fDebug && GetBoolArg("-printkeypool"))
2071 printf("keypool reserve %"PRI64d"\n", nIndex);
2075 int64 CWallet::AddReserveKey(const CKeyPool& keypool)
2078 LOCK2(cs_main, cs_wallet);
2079 CWalletDB walletdb(strWalletFile);
2081 int64 nIndex = 1 + *(--setKeyPool.end());
2082 if (!walletdb.WritePool(nIndex, keypool))
2083 throw runtime_error("AddReserveKey() : writing added key failed");
2084 setKeyPool.insert(nIndex);
2090 void CWallet::KeepKey(int64 nIndex)
2092 // Remove from key pool
2095 CWalletDB walletdb(strWalletFile);
2096 walletdb.ErasePool(nIndex);
2099 printf("keypool keep %"PRI64d"\n", nIndex);
2102 void CWallet::ReturnKey(int64 nIndex)
2104 // Return to key pool
2107 setKeyPool.insert(nIndex);
2110 printf("keypool return %"PRI64d"\n", nIndex);
2113 bool CWallet::GetKeyFromPool(CPubKey& result, bool fAllowReuse)
2119 ReserveKeyFromKeyPool(nIndex, keypool);
2122 if (fAllowReuse && vchDefaultKey.IsValid())
2124 result = vchDefaultKey;
2127 if (IsLocked()) return false;
2128 result = GenerateNewKey();
2132 result = keypool.vchPubKey;
2137 int64 CWallet::GetOldestKeyPoolTime()
2141 ReserveKeyFromKeyPool(nIndex, keypool);
2145 return keypool.nTime;
2148 std::map<CTxDestination, int64> CWallet::GetAddressBalances()
2150 map<CTxDestination, int64> balances;
2154 BOOST_FOREACH(PAIRTYPE(uint256, CWalletTx) walletEntry, mapWallet)
2156 CWalletTx *pcoin = &walletEntry.second;
2158 if (!pcoin->IsFinal() || !pcoin->IsConfirmed())
2161 if ((pcoin->IsCoinBase() || pcoin->IsCoinStake()) && pcoin->GetBlocksToMaturity() > 0)
2164 int nDepth = pcoin->GetDepthInMainChain();
2165 if (nDepth < (pcoin->IsFromMe() ? 0 : 1))
2168 for (unsigned int i = 0; i < pcoin->vout.size(); i++)
2170 CTxDestination addr;
2171 if (!IsMine(pcoin->vout[i]))
2173 if(!ExtractDestination(pcoin->vout[i].scriptPubKey, addr))
2176 int64 n = pcoin->IsSpent(i) ? 0 : pcoin->vout[i].nValue;
2178 if (!balances.count(addr))
2180 balances[addr] += n;
2188 set< set<CTxDestination> > CWallet::GetAddressGroupings()
2190 set< set<CTxDestination> > groupings;
2191 set<CTxDestination> grouping;
2193 BOOST_FOREACH(PAIRTYPE(uint256, CWalletTx) walletEntry, mapWallet)
2195 CWalletTx *pcoin = &walletEntry.second;
2197 if (pcoin->vin.size() > 0 && IsMine(pcoin->vin[0]))
2199 // group all input addresses with each other
2200 BOOST_FOREACH(CTxIn txin, pcoin->vin)
2202 CTxDestination address;
2203 if(!ExtractDestination(mapWallet[txin.prevout.hash].vout[txin.prevout.n].scriptPubKey, address))
2205 grouping.insert(address);
2208 // group change with input addresses
2209 BOOST_FOREACH(CTxOut txout, pcoin->vout)
2210 if (IsChange(txout))
2212 CWalletTx tx = mapWallet[pcoin->vin[0].prevout.hash];
2213 CTxDestination txoutAddr;
2214 if(!ExtractDestination(txout.scriptPubKey, txoutAddr))
2216 grouping.insert(txoutAddr);
2218 groupings.insert(grouping);
2222 // group lone addrs by themselves
2223 for (unsigned int i = 0; i < pcoin->vout.size(); i++)
2224 if (IsMine(pcoin->vout[i]))
2226 CTxDestination address;
2227 if(!ExtractDestination(pcoin->vout[i].scriptPubKey, address))
2229 grouping.insert(address);
2230 groupings.insert(grouping);
2235 set< set<CTxDestination>* > uniqueGroupings; // a set of pointers to groups of addresses
2236 map< CTxDestination, set<CTxDestination>* > setmap; // map addresses to the unique group containing it
2237 BOOST_FOREACH(set<CTxDestination> grouping, groupings)
2239 // make a set of all the groups hit by this new group
2240 set< set<CTxDestination>* > hits;
2241 map< CTxDestination, set<CTxDestination>* >::iterator it;
2242 BOOST_FOREACH(CTxDestination address, grouping)
2243 if ((it = setmap.find(address)) != setmap.end())
2244 hits.insert((*it).second);
2246 // merge all hit groups into a new single group and delete old groups
2247 set<CTxDestination>* merged = new set<CTxDestination>(grouping);
2248 BOOST_FOREACH(set<CTxDestination>* hit, hits)
2250 merged->insert(hit->begin(), hit->end());
2251 uniqueGroupings.erase(hit);
2254 uniqueGroupings.insert(merged);
2257 BOOST_FOREACH(CTxDestination element, *merged)
2258 setmap[element] = merged;
2261 set< set<CTxDestination> > ret;
2262 BOOST_FOREACH(set<CTxDestination>* uniqueGrouping, uniqueGroupings)
2264 ret.insert(*uniqueGrouping);
2265 delete uniqueGrouping;
2271 // ppcoin: check 'spent' consistency between wallet and txindex
2272 // ppcoin: fix wallet spent state according to txindex
2273 void CWallet::FixSpentCoins(int& nMismatchFound, int64& nBalanceInQuestion, bool fCheckOnly)
2276 nBalanceInQuestion = 0;
2279 vector<CWalletTx*> vCoins;
2280 vCoins.reserve(mapWallet.size());
2281 for (map<uint256, CWalletTx>::iterator it = mapWallet.begin(); it != mapWallet.end(); ++it)
2282 vCoins.push_back(&(*it).second);
2284 CCoinsDB coinsdb("r");
2285 BOOST_FOREACH(CWalletTx* pcoin, vCoins)
2287 // Find the corresponding transaction index
2290 bool fNotFound = coinsdb.ReadCoins(pcoin->GetHash(), coins);
2292 for (unsigned int n=0; n < pcoin->vout.size(); n++)
2294 if (!fNotFound && IsMine(pcoin->vout[n]) && pcoin->IsSpent(n) && coins.IsAvailable(n))
2296 printf("FixSpentCoins found lost coin %sppc %s[%d], %s\n",
2297 FormatMoney(pcoin->vout[n].nValue).c_str(), pcoin->GetHash().ToString().c_str(), n, fCheckOnly? "repair not attempted" : "repairing");
2299 nBalanceInQuestion += pcoin->vout[n].nValue;
2302 pcoin->MarkUnspent(n);
2303 pcoin->WriteToDisk();
2306 else if (!fNotFound && IsMine(pcoin->vout[n]) && !pcoin->IsSpent(n) && coins.IsAvailable(n))
2308 printf("FixSpentCoins found spent coin %sppc %s[%d], %s\n",
2309 FormatMoney(pcoin->vout[n].nValue).c_str(), pcoin->GetHash().ToString().c_str(), n, fCheckOnly? "repair not attempted" : "repairing");
2311 nBalanceInQuestion += pcoin->vout[n].nValue;
2314 pcoin->MarkSpent(n);
2315 pcoin->WriteToDisk();
2322 // ppcoin: disable transaction (only for coinstake)
2323 void CWallet::DisableTransaction(const CTransaction &tx)
2325 if (!tx.IsCoinStake() || !IsFromMe(tx))
2326 return; // only disconnecting coinstake requires marking input unspent
2329 BOOST_FOREACH(const CTxIn& txin, tx.vin)
2331 map<uint256, CWalletTx>::iterator mi = mapWallet.find(txin.prevout.hash);
2332 if (mi != mapWallet.end())
2334 CWalletTx& prev = (*mi).second;
2335 if (txin.prevout.n < prev.vout.size() && IsMine(prev.vout[txin.prevout.n]))
2337 prev.MarkUnspent(txin.prevout.n);
2344 CPubKey CReserveKey::GetReservedKey()
2349 pwallet->ReserveKeyFromKeyPool(nIndex, keypool);
2351 vchPubKey = keypool.vchPubKey;
2354 printf("CReserveKey::GetReservedKey(): Warning: Using default key instead of a new key, top up your keypool!");
2355 vchPubKey = pwallet->vchDefaultKey;
2358 assert(vchPubKey.IsValid());
2362 void CReserveKey::KeepKey()
2365 pwallet->KeepKey(nIndex);
2367 vchPubKey = CPubKey();
2370 void CReserveKey::ReturnKey()
2373 pwallet->ReturnKey(nIndex);
2375 vchPubKey = CPubKey();
2378 void CWallet::GetAllReserveKeys(set<CKeyID>& setAddress) const
2382 CWalletDB walletdb(strWalletFile);
2384 LOCK2(cs_main, cs_wallet);
2385 BOOST_FOREACH(const int64& id, setKeyPool)
2388 if (!walletdb.ReadPool(id, keypool))
2389 throw runtime_error("GetAllReserveKeyHashes() : read failed");
2390 assert(keypool.vchPubKey.IsValid());
2391 CKeyID keyID = keypool.vchPubKey.GetID();
2392 if (!HaveKey(keyID))
2393 throw runtime_error("GetAllReserveKeyHashes() : unknown key in key pool");
2394 setAddress.insert(keyID);
2398 void CWallet::UpdatedTransaction(const uint256 &hashTx)
2402 // Only notify UI if this transaction is in this wallet
2403 map<uint256, CWalletTx>::const_iterator mi = mapWallet.find(hashTx);
2404 if (mi != mapWallet.end())
2405 NotifyTransactionChanged(this, hashTx, CT_UPDATED);
2409 void CWallet::GetKeyBirthTimes(std::map<CKeyID, int64> &mapKeyBirth) const {
2410 mapKeyBirth.clear();
2412 // get birth times for keys with metadata
2413 for (std::map<CKeyID, CKeyMetadata>::const_iterator it = mapKeyMetadata.begin(); it != mapKeyMetadata.end(); it++)
2414 if (it->second.nCreateTime)
2415 mapKeyBirth[it->first] = it->second.nCreateTime;
2417 // map in which we'll infer heights of other keys
2418 CBlockIndex *pindexMax = FindBlockByHeight(std::max(0, nBestHeight - 144)); // the tip can be reorganised; use a 144-block safety margin
2419 std::map<CKeyID, CBlockIndex*> mapKeyFirstBlock;
2420 std::set<CKeyID> setKeys;
2422 BOOST_FOREACH(const CKeyID &keyid, setKeys) {
2423 if (mapKeyBirth.count(keyid) == 0)
2424 mapKeyFirstBlock[keyid] = pindexMax;
2428 // if there are no such keys, we're done
2429 if (mapKeyFirstBlock.empty())
2432 // find first block that affects those keys, if there are any left
2433 std::vector<CKeyID> vAffected;
2434 for (std::map<uint256, CWalletTx>::const_iterator it = mapWallet.begin(); it != mapWallet.end(); it++) {
2435 // iterate over all wallet transactions...
2436 const CWalletTx &wtx = (*it).second;
2437 std::map<uint256, CBlockIndex*>::const_iterator blit = mapBlockIndex.find(wtx.hashBlock);
2438 if (blit != mapBlockIndex.end() && blit->second->IsInMainChain()) {
2439 // ... which are already in a block
2440 int nHeight = blit->second->nHeight;
2441 BOOST_FOREACH(const CTxOut &txout, wtx.vout) {
2442 // iterate over all their outputs
2443 ::ExtractAffectedKeys(*this, txout.scriptPubKey, vAffected);
2444 BOOST_FOREACH(const CKeyID &keyid, vAffected) {
2445 // ... and all their affected keys
2446 std::map<CKeyID, CBlockIndex*>::iterator rit = mapKeyFirstBlock.find(keyid);
2447 if (rit != mapKeyFirstBlock.end() && nHeight < rit->second->nHeight)
2448 rit->second = blit->second;
2455 // Extract block timestamps for those keys
2456 for (std::map<CKeyID, CBlockIndex*>::const_iterator it = mapKeyFirstBlock.begin(); it != mapKeyFirstBlock.end(); it++)
2457 mapKeyBirth[it->first] = it->second->nTime - 7200; // block times can be 2h off