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;
19 //////////////////////////////////////////////////////////////////////////////
24 struct CompareValueOnly
26 bool operator()(const pair<int64, pair<const CWalletTx*, unsigned int> >& t1,
27 const pair<int64, pair<const CWalletTx*, unsigned int> >& t2) const
29 return t1.first < t2.first;
33 CPubKey CWallet::GenerateNewKey()
35 bool fCompressed = CanSupportFeature(FEATURE_COMPRPUBKEY); // default to compressed public keys if we want 0.6.0 wallets
39 key.MakeNewKey(fCompressed);
41 // Compressed public keys were introduced in version 0.6.0
43 SetMinVersion(FEATURE_COMPRPUBKEY);
45 CPubKey pubkey = key.GetPubKey();
47 // Create new metadata
48 int64 nCreationTime = GetTime();
49 mapKeyMetadata[pubkey.GetID()] = CKeyMetadata(nCreationTime);
50 if (!nTimeFirstKey || nCreationTime < nTimeFirstKey)
51 nTimeFirstKey = nCreationTime;
54 throw std::runtime_error("CWallet::GenerateNewKey() : AddKey failed");
55 return key.GetPubKey();
58 bool CWallet::AddKey(const CKey& key)
60 CPubKey pubkey = key.GetPubKey();
62 if (!CCryptoKeyStore::AddKey(key))
67 return CWalletDB(strWalletFile).WriteKey(pubkey, key.GetPrivKey(), mapKeyMetadata[pubkey.GetID()]);
71 bool CWallet::AddCryptedKey(const CPubKey &vchPubKey, const vector<unsigned char> &vchCryptedSecret)
73 if (!CCryptoKeyStore::AddCryptedKey(vchPubKey, vchCryptedSecret))
79 if (pwalletdbEncryption)
80 return pwalletdbEncryption->WriteCryptedKey(vchPubKey, vchCryptedSecret, mapKeyMetadata[vchPubKey.GetID()]);
82 return CWalletDB(strWalletFile).WriteCryptedKey(vchPubKey, vchCryptedSecret, mapKeyMetadata[vchPubKey.GetID()]);
87 bool CWallet::LoadKeyMetadata(const CPubKey &pubkey, const CKeyMetadata &meta)
89 if (meta.nCreateTime && (!nTimeFirstKey || meta.nCreateTime < nTimeFirstKey))
90 nTimeFirstKey = meta.nCreateTime;
92 mapKeyMetadata[pubkey.GetID()] = meta;
96 bool CWallet::AddCScript(const CScript& redeemScript)
98 if (!CCryptoKeyStore::AddCScript(redeemScript))
102 return CWalletDB(strWalletFile).WriteCScript(Hash160(redeemScript), redeemScript);
105 // ppcoin: optional setting to unlock wallet for block minting only;
106 // serves to disable the trivial sendmoney when OS account compromised
107 bool fWalletUnlockMintOnly = false;
109 bool CWallet::Unlock(const SecureString& strWalletPassphrase)
115 CKeyingMaterial vMasterKey;
119 BOOST_FOREACH(const MasterKeyMap::value_type& pMasterKey, mapMasterKeys)
121 if(!crypter.SetKeyFromPassphrase(strWalletPassphrase, pMasterKey.second.vchSalt, pMasterKey.second.nDeriveIterations, pMasterKey.second.nDerivationMethod))
123 if (!crypter.Decrypt(pMasterKey.second.vchCryptedKey, vMasterKey))
125 if (CCryptoKeyStore::Unlock(vMasterKey))
132 bool CWallet::ChangeWalletPassphrase(const SecureString& strOldWalletPassphrase, const SecureString& strNewWalletPassphrase)
134 bool fWasLocked = IsLocked();
141 CKeyingMaterial vMasterKey;
142 BOOST_FOREACH(MasterKeyMap::value_type& pMasterKey, mapMasterKeys)
144 if(!crypter.SetKeyFromPassphrase(strOldWalletPassphrase, pMasterKey.second.vchSalt, pMasterKey.second.nDeriveIterations, pMasterKey.second.nDerivationMethod))
146 if (!crypter.Decrypt(pMasterKey.second.vchCryptedKey, vMasterKey))
148 if (CCryptoKeyStore::Unlock(vMasterKey))
150 int64 nStartTime = GetTimeMillis();
151 crypter.SetKeyFromPassphrase(strNewWalletPassphrase, pMasterKey.second.vchSalt, pMasterKey.second.nDeriveIterations, pMasterKey.second.nDerivationMethod);
152 pMasterKey.second.nDeriveIterations = pMasterKey.second.nDeriveIterations * (100 / ((double)(GetTimeMillis() - nStartTime)));
154 nStartTime = GetTimeMillis();
155 crypter.SetKeyFromPassphrase(strNewWalletPassphrase, pMasterKey.second.vchSalt, pMasterKey.second.nDeriveIterations, pMasterKey.second.nDerivationMethod);
156 pMasterKey.second.nDeriveIterations = (pMasterKey.second.nDeriveIterations + pMasterKey.second.nDeriveIterations * 100 / ((double)(GetTimeMillis() - nStartTime))) / 2;
158 if (pMasterKey.second.nDeriveIterations < 25000)
159 pMasterKey.second.nDeriveIterations = 25000;
161 printf("Wallet passphrase changed to an nDeriveIterations of %i\n", pMasterKey.second.nDeriveIterations);
163 if (!crypter.SetKeyFromPassphrase(strNewWalletPassphrase, pMasterKey.second.vchSalt, pMasterKey.second.nDeriveIterations, pMasterKey.second.nDerivationMethod))
165 if (!crypter.Encrypt(vMasterKey, pMasterKey.second.vchCryptedKey))
167 CWalletDB(strWalletFile).WriteMasterKey(pMasterKey.first, pMasterKey.second);
178 void CWallet::SetBestChain(const CBlockLocator& loc)
180 CWalletDB walletdb(strWalletFile);
181 walletdb.WriteBestBlock(loc);
184 // This class implements an addrIncoming entry that causes pre-0.4
185 // clients to crash on startup if reading a private-key-encrypted wallet.
186 class CCorruptAddress
191 if (nType & SER_DISK)
196 bool CWallet::SetMinVersion(enum WalletFeature nVersion, CWalletDB* pwalletdbIn, bool fExplicit)
198 if (nWalletVersion >= nVersion)
201 // when doing an explicit upgrade, if we pass the max version permitted, upgrade all the way
202 if (fExplicit && nVersion > nWalletMaxVersion)
203 nVersion = FEATURE_LATEST;
205 nWalletVersion = nVersion;
207 if (nVersion > nWalletMaxVersion)
208 nWalletMaxVersion = nVersion;
212 CWalletDB* pwalletdb = pwalletdbIn ? pwalletdbIn : new CWalletDB(strWalletFile);
213 if (nWalletVersion >= 40000)
215 // Versions prior to 0.4.0 did not support the "minversion" record.
216 // Use a CCorruptAddress to make them crash instead.
217 CCorruptAddress corruptAddress;
218 pwalletdb->WriteSetting("addrIncoming", corruptAddress);
220 if (nWalletVersion > 40000)
221 pwalletdb->WriteMinVersion(nWalletVersion);
229 bool CWallet::SetMaxVersion(int nVersion)
231 // cannot downgrade below current version
232 if (nWalletVersion > nVersion)
235 nWalletMaxVersion = nVersion;
240 bool CWallet::EncryptWallet(const SecureString& strWalletPassphrase)
245 CKeyingMaterial vMasterKey;
246 RandAddSeedPerfmon();
248 vMasterKey.resize(WALLET_CRYPTO_KEY_SIZE);
249 RAND_bytes(&vMasterKey[0], WALLET_CRYPTO_KEY_SIZE);
251 CMasterKey kMasterKey(nDerivationMethodIndex);
253 RandAddSeedPerfmon();
254 kMasterKey.vchSalt.resize(WALLET_CRYPTO_SALT_SIZE);
255 RAND_bytes(&kMasterKey.vchSalt[0], WALLET_CRYPTO_SALT_SIZE);
258 int64 nStartTime = GetTimeMillis();
259 crypter.SetKeyFromPassphrase(strWalletPassphrase, kMasterKey.vchSalt, 25000, kMasterKey.nDerivationMethod);
260 kMasterKey.nDeriveIterations = 2500000 / ((double)(GetTimeMillis() - nStartTime));
262 nStartTime = GetTimeMillis();
263 crypter.SetKeyFromPassphrase(strWalletPassphrase, kMasterKey.vchSalt, kMasterKey.nDeriveIterations, kMasterKey.nDerivationMethod);
264 kMasterKey.nDeriveIterations = (kMasterKey.nDeriveIterations + kMasterKey.nDeriveIterations * 100 / ((double)(GetTimeMillis() - nStartTime))) / 2;
266 if (kMasterKey.nDeriveIterations < 25000)
267 kMasterKey.nDeriveIterations = 25000;
269 printf("Encrypting Wallet with an nDeriveIterations of %i\n", kMasterKey.nDeriveIterations);
271 if (!crypter.SetKeyFromPassphrase(strWalletPassphrase, kMasterKey.vchSalt, kMasterKey.nDeriveIterations, kMasterKey.nDerivationMethod))
273 if (!crypter.Encrypt(vMasterKey, kMasterKey.vchCryptedKey))
278 mapMasterKeys[++nMasterKeyMaxID] = kMasterKey;
281 pwalletdbEncryption = new CWalletDB(strWalletFile);
282 if (!pwalletdbEncryption->TxnBegin())
284 pwalletdbEncryption->WriteMasterKey(nMasterKeyMaxID, kMasterKey);
287 if (!EncryptKeys(vMasterKey))
290 pwalletdbEncryption->TxnAbort();
291 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.
294 // Encryption was introduced in version 0.4.0
295 SetMinVersion(FEATURE_WALLETCRYPT, pwalletdbEncryption, true);
299 if (!pwalletdbEncryption->TxnCommit())
300 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.
302 delete pwalletdbEncryption;
303 pwalletdbEncryption = NULL;
307 Unlock(strWalletPassphrase);
311 // Need to completely rewrite the wallet file; if we don't, bdb might keep
312 // bits of the unencrypted private key in slack space in the database file.
313 CDB::Rewrite(strWalletFile);
316 NotifyStatusChanged(this);
321 int64 CWallet::IncOrderPosNext(CWalletDB *pwalletdb)
323 int64 nRet = nOrderPosNext++;
325 pwalletdb->WriteOrderPosNext(nOrderPosNext);
327 CWalletDB(strWalletFile).WriteOrderPosNext(nOrderPosNext);
332 CWallet::TxItems CWallet::OrderedTxItems(std::list<CAccountingEntry>& acentries, std::string strAccount)
334 CWalletDB walletdb(strWalletFile);
336 // First: get all CWalletTx and CAccountingEntry into a sorted-by-order multimap.
339 // Note: maintaining indices in the database of (account,time) --> txid and (account, time) --> acentry
340 // would make this much faster for applications that do this a lot.
341 for (map<uint256, CWalletTx>::iterator it = mapWallet.begin(); it != mapWallet.end(); ++it)
343 CWalletTx* wtx = &((*it).second);
344 txOrdered.insert(make_pair(wtx->nOrderPos, TxPair(wtx, (CAccountingEntry*)0)));
347 walletdb.ListAccountCreditDebit(strAccount, acentries);
348 BOOST_FOREACH(CAccountingEntry& entry, acentries)
350 txOrdered.insert(make_pair(entry.nOrderPos, TxPair((CWalletTx*)0, &entry)));
356 void CWallet::WalletUpdateSpent(const CTransaction &tx, bool fBlock)
358 // Anytime a signature is successfully verified, it's proof the outpoint is spent.
359 // Update the wallet spent flag if it doesn't know due to wallet.dat being
360 // restored from backup or the user making copies of wallet.dat.
363 BOOST_FOREACH(const CTxIn& txin, tx.vin)
365 map<uint256, CWalletTx>::iterator mi = mapWallet.find(txin.prevout.hash);
366 if (mi != mapWallet.end())
368 CWalletTx& wtx = (*mi).second;
369 if (txin.prevout.n >= wtx.vout.size())
370 printf("WalletUpdateSpent: bad wtx %s\n", wtx.GetHash().ToString().c_str());
371 else if (!wtx.IsSpent(txin.prevout.n) && IsMine(wtx.vout[txin.prevout.n]))
373 printf("WalletUpdateSpent found spent coin %snvc %s\n", FormatMoney(wtx.GetCredit()).c_str(), wtx.GetHash().ToString().c_str());
374 wtx.MarkSpent(txin.prevout.n);
376 NotifyTransactionChanged(this, txin.prevout.hash, CT_UPDATED);
383 uint256 hash = tx.GetHash();
384 map<uint256, CWalletTx>::iterator mi = mapWallet.find(hash);
385 CWalletTx& wtx = (*mi).second;
387 BOOST_FOREACH(const CTxOut& txout, tx.vout)
391 wtx.MarkUnspent(&txout - &tx.vout[0]);
393 NotifyTransactionChanged(this, hash, CT_UPDATED);
400 void CWallet::MarkDirty()
404 BOOST_FOREACH(PAIRTYPE(const uint256, CWalletTx)& item, mapWallet)
405 item.second.MarkDirty();
409 bool CWallet::AddToWallet(const CWalletTx& wtxIn)
411 uint256 hash = wtxIn.GetHash();
414 // Inserts only if not already there, returns tx inserted or tx found
415 pair<map<uint256, CWalletTx>::iterator, bool> ret = mapWallet.insert(make_pair(hash, wtxIn));
416 CWalletTx& wtx = (*ret.first).second;
417 wtx.BindWallet(this);
418 bool fInsertedNew = ret.second;
421 wtx.nTimeReceived = GetAdjustedTime();
422 wtx.nOrderPos = IncOrderPosNext();
424 wtx.nTimeSmart = wtx.nTimeReceived;
425 if (wtxIn.hashBlock != 0)
427 if (mapBlockIndex.count(wtxIn.hashBlock))
429 unsigned int latestNow = wtx.nTimeReceived;
430 unsigned int latestEntry = 0;
432 // Tolerate times up to the last timestamp in the wallet not more than 5 minutes into the future
433 int64 latestTolerated = latestNow + 300;
434 std::list<CAccountingEntry> acentries;
435 TxItems txOrdered = OrderedTxItems(acentries);
436 for (TxItems::reverse_iterator it = txOrdered.rbegin(); it != txOrdered.rend(); ++it)
438 CWalletTx *const pwtx = (*it).second.first;
441 CAccountingEntry *const pacentry = (*it).second.second;
445 nSmartTime = pwtx->nTimeSmart;
447 nSmartTime = pwtx->nTimeReceived;
450 nSmartTime = pacentry->nTime;
451 if (nSmartTime <= latestTolerated)
453 latestEntry = nSmartTime;
454 if (nSmartTime > latestNow)
455 latestNow = nSmartTime;
461 unsigned int& blocktime = mapBlockIndex[wtxIn.hashBlock]->nTime;
462 wtx.nTimeSmart = std::max(latestEntry, std::min(blocktime, latestNow));
465 printf("AddToWallet() : found %s in block %s not in index\n",
466 hash.ToString().substr(0,10).c_str(),
467 wtxIn.hashBlock.ToString().c_str());
471 bool fUpdated = false;
475 if (wtxIn.hashBlock != 0 && wtxIn.hashBlock != wtx.hashBlock)
477 wtx.hashBlock = wtxIn.hashBlock;
480 if (wtxIn.nIndex != -1 && (wtxIn.vMerkleBranch != wtx.vMerkleBranch || wtxIn.nIndex != wtx.nIndex))
482 wtx.vMerkleBranch = wtxIn.vMerkleBranch;
483 wtx.nIndex = wtxIn.nIndex;
486 if (wtxIn.fFromMe && wtxIn.fFromMe != wtx.fFromMe)
488 wtx.fFromMe = wtxIn.fFromMe;
491 fUpdated |= wtx.UpdateSpent(wtxIn.vfSpent);
495 printf("AddToWallet %s %s%s\n", hash.ToString().substr(0,10).c_str(), (fInsertedNew ? "new" : ""), (fUpdated ? "update" : ""));
498 if (fInsertedNew || fUpdated)
499 if (!wtx.WriteToDisk())
502 // If default receiving address gets used, replace it with a new one
503 CScript scriptDefaultKey;
504 scriptDefaultKey.SetDestination(vchDefaultKey.GetID());
505 BOOST_FOREACH(const CTxOut& txout, wtx.vout)
507 if (txout.scriptPubKey == scriptDefaultKey)
509 CPubKey newDefaultKey;
510 if (GetKeyFromPool(newDefaultKey, false))
512 SetDefaultKey(newDefaultKey);
513 SetAddressBookName(vchDefaultKey.GetID(), "");
518 // since AddToWallet is called directly for self-originating transactions, check for consumption of own coins
519 WalletUpdateSpent(wtx, (wtxIn.hashBlock != 0));
521 // Notify UI of new or updated transaction
522 NotifyTransactionChanged(this, hash, fInsertedNew ? CT_NEW : CT_UPDATED);
524 // notify an external script when a wallet transaction comes in or is updated
525 std::string strCmd = GetArg("-walletnotify", "");
527 if ( !strCmd.empty())
529 boost::replace_all(strCmd, "%s", hash.GetHex());
530 boost::thread t(runCommand, strCmd); // thread runs free
537 // Add a transaction to the wallet, or update it.
538 // pblock is optional, but should be provided if the transaction is known to be in a block.
539 // If fUpdate is true, existing transactions will be updated.
540 bool CWallet::AddToWalletIfInvolvingMe(const uint256 &hash, const CTransaction& tx, const CBlock* pblock, bool fUpdate, bool fFindBlock)
544 bool fExisted = mapWallet.count(hash);
545 if (fExisted && !fUpdate) return false;
546 if (fExisted || IsMine(tx) || IsFromMe(tx))
548 CWalletTx wtx(this,tx);
549 // Get merkle branch if transaction was found in a block
551 wtx.SetMerkleBranch(pblock);
552 return AddToWallet(wtx);
555 WalletUpdateSpent(tx);
560 bool CWallet::EraseFromWallet(uint256 hash)
566 if (mapWallet.erase(hash))
567 CWalletDB(strWalletFile).EraseTx(hash);
573 bool CWallet::IsMine(const CTxIn &txin) const
577 map<uint256, CWalletTx>::const_iterator mi = mapWallet.find(txin.prevout.hash);
578 if (mi != mapWallet.end())
580 const CWalletTx& prev = (*mi).second;
581 if (txin.prevout.n < prev.vout.size())
582 if (IsMine(prev.vout[txin.prevout.n]))
589 int64 CWallet::GetDebit(const CTxIn &txin) const
593 map<uint256, CWalletTx>::const_iterator mi = mapWallet.find(txin.prevout.hash);
594 if (mi != mapWallet.end())
596 const CWalletTx& prev = (*mi).second;
597 if (txin.prevout.n < prev.vout.size())
598 if (IsMine(prev.vout[txin.prevout.n]))
599 return prev.vout[txin.prevout.n].nValue;
605 bool CWallet::IsChange(const CTxOut& txout) const
607 CTxDestination address;
609 // TODO: fix handling of 'change' outputs. The assumption is that any
610 // payment to a TX_PUBKEYHASH that is mine but isn't in the address book
611 // is change. That assumption is likely to break when we implement multisignature
612 // wallets that return change back into a multi-signature-protected address;
613 // a better way of identifying which outputs are 'the send' and which are
614 // 'the change' will need to be implemented (maybe extend CWalletTx to remember
615 // which output, if any, was change).
616 if (ExtractDestination(txout.scriptPubKey, address) && ::IsMine(*this, address))
619 if (!mapAddressBook.count(address))
625 int64 CWalletTx::GetTxTime() const
627 int64 n = nTimeSmart;
628 return n ? n : nTimeReceived;
631 int CWalletTx::GetRequestCount() const
633 // Returns -1 if it wasn't being tracked
636 LOCK(pwallet->cs_wallet);
637 if (IsCoinBase() || IsCoinStake())
642 map<uint256, int>::const_iterator mi = pwallet->mapRequestCount.find(hashBlock);
643 if (mi != pwallet->mapRequestCount.end())
644 nRequests = (*mi).second;
649 // Did anyone request this transaction?
650 map<uint256, int>::const_iterator mi = pwallet->mapRequestCount.find(GetHash());
651 if (mi != pwallet->mapRequestCount.end())
653 nRequests = (*mi).second;
655 // How about the block it's in?
656 if (nRequests == 0 && hashBlock != 0)
658 map<uint256, int>::const_iterator mi = pwallet->mapRequestCount.find(hashBlock);
659 if (mi != pwallet->mapRequestCount.end())
660 nRequests = (*mi).second;
662 nRequests = 1; // If it's in someone else's block it must have got out
670 void CWalletTx::GetAmounts(int64& nGeneratedImmature, int64& nGeneratedMature, list<pair<CTxDestination, int64> >& listReceived,
671 list<pair<CTxDestination, int64> >& listSent, int64& nFee, string& strSentAccount) const
673 nGeneratedImmature = nGeneratedMature = nFee = 0;
674 listReceived.clear();
676 strSentAccount = strFromAccount;
678 if (IsCoinBase() || IsCoinStake())
680 if (GetBlocksToMaturity() > 0)
681 nGeneratedImmature = pwallet->GetCredit(*this);
683 nGeneratedMature = GetCredit();
688 int64 nDebit = GetDebit();
689 if (nDebit > 0) // debit>0 means we signed/sent this transaction
691 int64 nValueOut = GetValueOut();
692 nFee = nDebit - nValueOut;
696 BOOST_FOREACH(const CTxOut& txout, vout)
698 CTxDestination address;
699 vector<unsigned char> vchPubKey;
700 if (!ExtractDestination(txout.scriptPubKey, address))
702 printf("CWalletTx::GetAmounts: Unknown transaction type found, txid %s\n",
703 this->GetHash().ToString().c_str());
706 // Don't report 'change' txouts
707 if (nDebit > 0 && pwallet->IsChange(txout))
711 listSent.push_back(make_pair(address, txout.nValue));
713 if (pwallet->IsMine(txout))
714 listReceived.push_back(make_pair(address, txout.nValue));
719 void CWalletTx::GetAccountAmounts(const string& strAccount, int64& nGenerated, int64& nReceived,
720 int64& nSent, int64& nFee) const
722 nGenerated = nReceived = nSent = nFee = 0;
724 int64 allGeneratedImmature, allGeneratedMature, allFee;
725 allGeneratedImmature = allGeneratedMature = allFee = 0;
726 string strSentAccount;
727 list<pair<CTxDestination, int64> > listReceived;
728 list<pair<CTxDestination, int64> > listSent;
729 GetAmounts(allGeneratedImmature, allGeneratedMature, listReceived, listSent, allFee, strSentAccount);
731 if (strAccount == "")
732 nGenerated = allGeneratedMature;
733 if (strAccount == strSentAccount)
735 BOOST_FOREACH(const PAIRTYPE(CTxDestination,int64)& s, listSent)
740 LOCK(pwallet->cs_wallet);
741 BOOST_FOREACH(const PAIRTYPE(CTxDestination,int64)& r, listReceived)
743 if (pwallet->mapAddressBook.count(r.first))
745 map<CTxDestination, string>::const_iterator mi = pwallet->mapAddressBook.find(r.first);
746 if (mi != pwallet->mapAddressBook.end() && (*mi).second == strAccount)
747 nReceived += r.second;
749 else if (strAccount.empty())
751 nReceived += r.second;
757 void CWalletTx::AddSupportingTransactions()
761 const int COPY_DEPTH = 3;
762 if (SetMerkleBranch() < COPY_DEPTH)
764 vector<uint256> vWorkQueue;
765 BOOST_FOREACH(const CTxIn& txin, vin)
766 vWorkQueue.push_back(txin.prevout.hash);
769 LOCK(pwallet->cs_wallet);
770 map<uint256, const CMerkleTx*> mapWalletPrev;
771 set<uint256> setAlreadyDone;
772 for (unsigned int i = 0; i < vWorkQueue.size(); i++)
774 uint256 hash = vWorkQueue[i];
775 if (setAlreadyDone.count(hash))
777 setAlreadyDone.insert(hash);
780 map<uint256, CWalletTx>::const_iterator mi = pwallet->mapWallet.find(hash);
781 if (mi != pwallet->mapWallet.end())
784 BOOST_FOREACH(const CMerkleTx& txWalletPrev, (*mi).second.vtxPrev)
785 mapWalletPrev[txWalletPrev.GetHash()] = &txWalletPrev;
787 else if (mapWalletPrev.count(hash))
789 tx = *mapWalletPrev[hash];
792 int nDepth = tx.SetMerkleBranch();
793 vtxPrev.push_back(tx);
795 if (nDepth < COPY_DEPTH)
797 BOOST_FOREACH(const CTxIn& txin, tx.vin)
798 vWorkQueue.push_back(txin.prevout.hash);
804 reverse(vtxPrev.begin(), vtxPrev.end());
807 bool CWalletTx::WriteToDisk()
809 return CWalletDB(pwallet->strWalletFile).WriteTx(GetHash(), *this);
812 // Scan the block chain (starting in pindexStart) for transactions
813 // from or to us. If fUpdate is true, found transactions that already
814 // exist in the wallet will be updated.
815 int CWallet::ScanForWalletTransactions(CBlockIndex* pindexStart, bool fUpdate)
819 CBlockIndex* pindex = pindexStart;
825 block.ReadFromDisk(pindex, true);
826 BOOST_FOREACH(CTransaction& tx, block.vtx)
828 if (AddToWalletIfInvolvingMe(tx.GetHash(), tx, &block, fUpdate))
831 pindex = pindex->pnext;
837 void CWallet::ReacceptWalletTransactions()
844 bool fMissing = false;
845 BOOST_FOREACH(PAIRTYPE(const uint256, CWalletTx)& item, mapWallet)
847 CWalletTx& wtx = item.second;
848 if ((wtx.IsCoinBase() && wtx.IsSpent(0)) || (wtx.IsCoinStake() && wtx.IsSpent(1)))
852 bool fUpdated = false;
853 bool fNotFound = pcoinsTip->GetCoins(wtx.GetHash(), coins);
854 if (!fNotFound || wtx.GetDepthInMainChain() > 0)
856 // Update fSpent if a tx got spent somewhere else by a copy of wallet.dat
857 for (unsigned int i = 0; i < wtx.vout.size(); i++)
861 if ((i >= coins.vout.size() || coins.vout[i].IsNull()) && IsMine(wtx.vout[i]))
870 printf("ReacceptWalletTransactions found spent coin %snvc %s\n", FormatMoney(wtx.GetCredit()).c_str(), wtx.GetHash().ToString().c_str());
877 // Re-accept any txes of ours that aren't already in a block
878 if (!(wtx.IsCoinBase() || wtx.IsCoinStake()))
879 wtx.AcceptWalletTransaction(false);
884 // TODO: optimize this to scan just part of the block chain?
885 if (ScanForWalletTransactions(pindexGenesisBlock))
886 fRepeat = true; // Found missing transactions: re-do re-accept.
891 void CWalletTx::RelayWalletTransaction()
893 CCoinsViewCache& coins = *pcoinsTip;
894 BOOST_FOREACH(const CMerkleTx& tx, vtxPrev)
896 if (!(tx.IsCoinBase() || tx.IsCoinStake()))
898 uint256 hash = tx.GetHash();
899 if (!coins.HaveCoins(hash))
900 RelayTransaction((CTransaction)tx, hash);
903 if (!(IsCoinBase() || IsCoinStake()))
905 uint256 hash = GetHash();
906 if (!coins.HaveCoins(hash))
908 printf("Relaying wtx %s\n", hash.ToString().substr(0,10).c_str());
909 RelayTransaction((CTransaction)*this, hash);
914 void CWallet::ResendWalletTransactions(bool fForce)
918 // Do this infrequently and randomly to avoid giving away
919 // that these are our transactions.
920 static int64 nNextTime;
921 if (GetTime() < nNextTime)
923 bool fFirst = (nNextTime == 0);
924 nNextTime = GetTime() + GetRand(30 * 60);
928 // Only do it if there's been a new block since last time
929 static int64 nLastTime;
930 if (nTimeBestReceived < nLastTime)
932 nLastTime = GetTime();
935 // Rebroadcast any of our txes that aren't in a block yet
936 printf("ResendWalletTransactions()\n");
939 // Sort them in chronological order
940 multimap<unsigned int, CWalletTx*> mapSorted;
941 BOOST_FOREACH(PAIRTYPE(const uint256, CWalletTx)& item, mapWallet)
943 CWalletTx& wtx = item.second;
944 // Don't rebroadcast until it's had plenty of time that
945 // it should have gotten in already by now.
946 if (nTimeBestReceived - (int64)wtx.nTimeReceived > 5 * 60)
947 mapSorted.insert(make_pair(wtx.nTimeReceived, &wtx));
949 BOOST_FOREACH(PAIRTYPE(const unsigned int, CWalletTx*)& item, mapSorted)
951 CWalletTx& wtx = *item.second;
952 wtx.RelayWalletTransaction();
962 //////////////////////////////////////////////////////////////////////////////
968 int64 CWallet::GetBalance() const
973 for (map<uint256, CWalletTx>::const_iterator it = mapWallet.begin(); it != mapWallet.end(); ++it)
975 const CWalletTx* pcoin = &(*it).second;
976 if (pcoin->IsTrusted())
977 nTotal += pcoin->GetAvailableCredit();
984 int64 CWallet::GetUnconfirmedBalance() const
989 for (map<uint256, CWalletTx>::const_iterator it = mapWallet.begin(); it != mapWallet.end(); ++it)
991 const CWalletTx* pcoin = &(*it).second;
992 if (!pcoin->IsFinal() || !pcoin->IsTrusted())
993 nTotal += pcoin->GetAvailableCredit();
999 int64 CWallet::GetImmatureBalance() const
1004 for (map<uint256, CWalletTx>::const_iterator it = mapWallet.begin(); it != mapWallet.end(); ++it)
1006 const CWalletTx& pcoin = (*it).second;
1007 if (pcoin.IsCoinBase() && pcoin.GetBlocksToMaturity() > 0 && pcoin.IsInMainChain())
1008 nTotal += GetCredit(pcoin);
1014 // populate vCoins with vector of spendable COutputs
1015 void CWallet::AvailableCoins(vector<COutput>& vCoins, bool fOnlyConfirmed, const CCoinControl *coinControl) const
1021 for (map<uint256, CWalletTx>::const_iterator it = mapWallet.begin(); it != mapWallet.end(); ++it)
1023 const CWalletTx* pcoin = &(*it).second;
1025 if (!pcoin->IsFinal()) {
1029 if (fOnlyConfirmed && !pcoin->IsTrusted()) {
1033 if (pcoin->IsCoinBase() && pcoin->GetBlocksToMaturity() > 0) {
1037 int nDepth = pcoin->GetDepthInMainChain();
1042 if(pcoin->IsCoinStake() && pcoin->GetBlocksToMaturity() > 0) {
1046 for (unsigned int i = 0; i < pcoin->vout.size(); i++) {
1047 if (!(pcoin->IsSpent(i)) && IsMine(pcoin->vout[i]) && pcoin->vout[i].nValue >= nMinimumInputValue &&
1048 (!coinControl || !coinControl->HasSelected() || coinControl->IsSelected((*it).first, i)))
1049 vCoins.push_back(COutput(pcoin, i, nDepth));
1055 void CWallet::AvailableCoinsMinConf(vector<COutput>& vCoins, int nConf) const
1060 for (map<uint256, CWalletTx>::const_iterator it = mapWallet.begin(); it != mapWallet.end(); ++it)
1062 const CWalletTx* pcoin = &(*it).second;
1064 if (!pcoin->IsFinal())
1067 if(pcoin->GetDepthInMainChain() < nConf)
1070 for (unsigned int i = 0; i < pcoin->vout.size(); i++)
1071 if (!(pcoin->IsSpent(i)) && IsMine(pcoin->vout[i]) && pcoin->vout[i].nValue >= nMinimumInputValue)
1072 vCoins.push_back(COutput(pcoin, i, pcoin->GetDepthInMainChain()));
1077 static void ApproximateBestSubset(vector<pair<int64, pair<const CWalletTx*,unsigned int> > >vValue, int64 nTotalLower, int64 nTargetValue,
1078 vector<char>& vfBest, int64& nBest, int iterations = 1000)
1080 vector<char> vfIncluded;
1082 vfBest.assign(vValue.size(), true);
1083 nBest = nTotalLower;
1085 for (int nRep = 0; nRep < iterations && nBest != nTargetValue; nRep++)
1087 vfIncluded.assign(vValue.size(), false);
1089 bool fReachedTarget = false;
1090 for (int nPass = 0; nPass < 2 && !fReachedTarget; nPass++)
1092 for (unsigned int i = 0; i < vValue.size(); i++)
1094 if (nPass == 0 ? rand() % 2 : !vfIncluded[i])
1096 nTotal += vValue[i].first;
1097 vfIncluded[i] = true;
1098 if (nTotal >= nTargetValue)
1100 fReachedTarget = true;
1104 vfBest = vfIncluded;
1106 nTotal -= vValue[i].first;
1107 vfIncluded[i] = false;
1115 // ppcoin: total coins staked (non-spendable until maturity)
1116 int64 CWallet::GetStake() const
1120 for (map<uint256, CWalletTx>::const_iterator it = mapWallet.begin(); it != mapWallet.end(); ++it)
1122 const CWalletTx* pcoin = &(*it).second;
1123 if (pcoin->IsCoinStake() && pcoin->GetBlocksToMaturity() > 0 && pcoin->GetDepthInMainChain() > 0)
1124 nTotal += CWallet::GetCredit(*pcoin);
1129 int64 CWallet::GetNewMint() const
1133 for (map<uint256, CWalletTx>::const_iterator it = mapWallet.begin(); it != mapWallet.end(); ++it)
1135 const CWalletTx* pcoin = &(*it).second;
1136 if (pcoin->IsCoinBase() && pcoin->GetBlocksToMaturity() > 0 && pcoin->GetDepthInMainChain() > 0)
1137 nTotal += CWallet::GetCredit(*pcoin);
1142 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
1144 setCoinsRet.clear();
1147 // List of values less than target
1148 pair<int64, pair<const CWalletTx*,unsigned int> > coinLowestLarger;
1149 coinLowestLarger.first = std::numeric_limits<int64>::max();
1150 coinLowestLarger.second.first = NULL;
1151 vector<pair<int64, pair<const CWalletTx*,unsigned int> > > vValue;
1152 int64 nTotalLower = 0;
1154 random_shuffle(vCoins.begin(), vCoins.end(), GetRandInt);
1156 BOOST_FOREACH(COutput output, vCoins)
1158 const CWalletTx *pcoin = output.tx;
1160 if (output.nDepth < (pcoin->IsFromMe() ? nConfMine : nConfTheirs))
1165 // Follow the timestamp rules
1166 if (pcoin->nTime > nSpendTime)
1169 int64 n = pcoin->vout[i].nValue;
1171 pair<int64,pair<const CWalletTx*,unsigned int> > coin = make_pair(n,make_pair(pcoin, i));
1173 if (n == nTargetValue)
1175 setCoinsRet.insert(coin.second);
1176 nValueRet += coin.first;
1179 else if (n < nTargetValue + CENT)
1181 vValue.push_back(coin);
1184 else if (n < coinLowestLarger.first)
1186 coinLowestLarger = coin;
1190 if (nTotalLower == nTargetValue)
1192 for (unsigned int i = 0; i < vValue.size(); ++i)
1194 setCoinsRet.insert(vValue[i].second);
1195 nValueRet += vValue[i].first;
1200 if (nTotalLower < nTargetValue)
1202 if (coinLowestLarger.second.first == NULL)
1204 setCoinsRet.insert(coinLowestLarger.second);
1205 nValueRet += coinLowestLarger.first;
1209 // Solve subset sum by stochastic approximation
1210 sort(vValue.rbegin(), vValue.rend(), CompareValueOnly());
1211 vector<char> vfBest;
1214 ApproximateBestSubset(vValue, nTotalLower, nTargetValue, vfBest, nBest, 1000);
1215 if (nBest != nTargetValue && nTotalLower >= nTargetValue + CENT)
1216 ApproximateBestSubset(vValue, nTotalLower, nTargetValue + CENT, vfBest, nBest, 1000);
1218 // If we have a bigger coin and (either the stochastic approximation didn't find a good solution,
1219 // or the next bigger coin is closer), return the bigger coin
1220 if (coinLowestLarger.second.first &&
1221 ((nBest != nTargetValue && nBest < nTargetValue + CENT) || coinLowestLarger.first <= nBest))
1223 setCoinsRet.insert(coinLowestLarger.second);
1224 nValueRet += coinLowestLarger.first;
1227 for (unsigned int i = 0; i < vValue.size(); i++)
1230 setCoinsRet.insert(vValue[i].second);
1231 nValueRet += vValue[i].first;
1234 if (fDebug && GetBoolArg("-printpriority"))
1237 printf("SelectCoins() best subset: ");
1238 for (unsigned int i = 0; i < vValue.size(); i++)
1240 printf("%s ", FormatMoney(vValue[i].first).c_str());
1241 printf("total %s\n", FormatMoney(nBest).c_str());
1248 bool CWallet::SelectCoins(int64 nTargetValue, unsigned int nSpendTime, set<pair<const CWalletTx*,unsigned int> >& setCoinsRet, int64& nValueRet, const CCoinControl* coinControl) const
1250 vector<COutput> vCoins;
1251 AvailableCoins(vCoins, true, coinControl);
1253 // coin control -> return all selected outputs (we want all selected to go into the transaction for sure)
1254 if (coinControl && coinControl->HasSelected())
1256 BOOST_FOREACH(const COutput& out, vCoins)
1258 nValueRet += out.tx->vout[out.i].nValue;
1259 setCoinsRet.insert(make_pair(out.tx, out.i));
1261 return (nValueRet >= nTargetValue);
1264 return (SelectCoinsMinConf(nTargetValue, nSpendTime, 1, 6, vCoins, setCoinsRet, nValueRet) ||
1265 SelectCoinsMinConf(nTargetValue, nSpendTime, 1, 1, vCoins, setCoinsRet, nValueRet) ||
1266 SelectCoinsMinConf(nTargetValue, nSpendTime, 0, 1, vCoins, setCoinsRet, nValueRet));
1269 // Select some coins without random shuffle or best subset approximation
1270 bool CWallet::SelectCoinsSimple(int64 nTargetValue, unsigned int nSpendTime, int nMinConf, set<pair<const CWalletTx*,unsigned int> >& setCoinsRet, int64& nValueRet) const
1272 vector<COutput> vCoins;
1273 AvailableCoinsMinConf(vCoins, nMinConf);
1275 setCoinsRet.clear();
1278 BOOST_FOREACH(COutput output, vCoins)
1280 const CWalletTx *pcoin = output.tx;
1283 // Stop if we've chosen enough inputs
1284 if (nValueRet >= nTargetValue)
1287 // Follow the timestamp rules
1288 if (pcoin->nTime > nSpendTime)
1291 int64 n = pcoin->vout[i].nValue;
1293 pair<int64,pair<const CWalletTx*,unsigned int> > coin = make_pair(n,make_pair(pcoin, i));
1295 if (n >= nTargetValue)
1297 // If input value is greater or equal to target then simply insert
1298 // it into the current subset and exit
1299 setCoinsRet.insert(coin.second);
1300 nValueRet += coin.first;
1303 else if (n < nTargetValue + CENT)
1305 setCoinsRet.insert(coin.second);
1306 nValueRet += coin.first;
1313 bool CWallet::CreateTransaction(const vector<pair<CScript, int64> >& vecSend, CWalletTx& wtxNew, CReserveKey& reservekey, int64& nFeeRet, const CCoinControl* coinControl)
1316 BOOST_FOREACH (const PAIRTYPE(CScript, int64)& s, vecSend)
1322 if (vecSend.empty() || nValue < 0)
1325 wtxNew.BindWallet(this);
1328 LOCK2(cs_main, cs_wallet);
1330 nFeeRet = nTransactionFee;
1334 wtxNew.vout.clear();
1335 wtxNew.fFromMe = true;
1337 int64 nTotalValue = nValue + nFeeRet;
1338 double dPriority = 0;
1339 // vouts to the payees
1340 BOOST_FOREACH (const PAIRTYPE(CScript, int64)& s, vecSend)
1341 wtxNew.vout.push_back(CTxOut(s.second, s.first));
1343 // Choose coins to use
1344 set<pair<const CWalletTx*,unsigned int> > setCoins;
1346 if (!SelectCoins(nTotalValue, wtxNew.nTime, setCoins, nValueIn, coinControl))
1348 BOOST_FOREACH(PAIRTYPE(const CWalletTx*, unsigned int) pcoin, setCoins)
1350 int64 nCredit = pcoin.first->vout[pcoin.second].nValue;
1351 dPriority += (double)nCredit * pcoin.first->GetDepthInMainChain();
1354 int64 nChange = nValueIn - nValue - nFeeRet;
1355 // if sub-cent change is required, the fee must be raised to at least MIN_TX_FEE
1356 // or until nChange becomes zero
1357 // NOTE: this depends on the exact behaviour of GetMinFee
1358 if (nFeeRet < MIN_TX_FEE && nChange > 0 && nChange < CENT)
1360 int64 nMoveToFee = min(nChange, MIN_TX_FEE - nFeeRet);
1361 nChange -= nMoveToFee;
1362 nFeeRet += nMoveToFee;
1365 // sub-cent change is moved to fee
1366 if (nChange > 0 && nChange < MIN_TXOUT_AMOUNT)
1374 // Fill a vout to ourself
1375 // TODO: pass in scriptChange instead of reservekey so
1376 // change transaction isn't always pay-to-bitcoin-address
1377 CScript scriptChange;
1379 // coin control: send change to custom address
1380 if (coinControl && !boost::get<CNoDestination>(&coinControl->destChange))
1381 scriptChange.SetDestination(coinControl->destChange);
1383 // no coin control: send change to newly generated address
1386 // Note: We use a new key here to keep it from being obvious which side is the change.
1387 // The drawback is that by not reusing a previous key, the change may be lost if a
1388 // backup is restored, if the backup doesn't have the new private key for the change.
1389 // If we reused the old key, it would be possible to add code to look for and
1390 // rediscover unknown transactions that were written with keys of ours to recover
1391 // post-backup change.
1393 // Reserve a new key pair from key pool
1394 CPubKey vchPubKey = reservekey.GetReservedKey();
1396 scriptChange.SetDestination(vchPubKey.GetID());
1399 // Insert change txn at random position:
1400 vector<CTxOut>::iterator position = wtxNew.vout.begin()+GetRandInt(wtxNew.vout.size());
1401 wtxNew.vout.insert(position, CTxOut(nChange, scriptChange));
1404 reservekey.ReturnKey();
1407 BOOST_FOREACH(const PAIRTYPE(const CWalletTx*,unsigned int)& coin, setCoins)
1408 wtxNew.vin.push_back(CTxIn(coin.first->GetHash(),coin.second));
1412 BOOST_FOREACH(const PAIRTYPE(const CWalletTx*,unsigned int)& coin, setCoins)
1413 if (!SignSignature(*this, *coin.first, wtxNew, nIn++))
1417 unsigned int nBytes = ::GetSerializeSize(*(CTransaction*)&wtxNew, SER_NETWORK, PROTOCOL_VERSION);
1418 if (nBytes >= MAX_BLOCK_SIZE_GEN/5)
1420 dPriority /= nBytes;
1422 // Check that enough fee is included
1423 int64 nPayFee = nTransactionFee * (1 + (int64)nBytes / 1000);
1424 int64 nMinFee = wtxNew.GetMinFee(1, false, GMF_SEND, nBytes);
1425 if (nFeeRet < max(nPayFee, nMinFee))
1427 nFeeRet = max(nPayFee, nMinFee);
1431 // Fill vtxPrev by copying from previous transactions vtxPrev
1432 wtxNew.AddSupportingTransactions();
1433 wtxNew.fTimeReceivedIsTxTime = true;
1442 bool CWallet::CreateTransaction(CScript scriptPubKey, int64 nValue, CWalletTx& wtxNew, CReserveKey& reservekey, int64& nFeeRet, const CCoinControl* coinControl)
1444 vector< pair<CScript, int64> > vecSend;
1445 vecSend.push_back(make_pair(scriptPubKey, nValue));
1446 return CreateTransaction(vecSend, wtxNew, reservekey, nFeeRet, coinControl);
1449 // NovaCoin: get current stake weight
1450 bool CWallet::GetStakeWeight(const CKeyStore& keystore, uint64& nMinWeight, uint64& nMaxWeight, uint64& nWeight)
1452 // Choose coins to use
1453 int64 nBalance = GetBalance();
1454 int64 nReserveBalance = 0;
1456 if (mapArgs.count("-reservebalance") && !ParseMoney(mapArgs["-reservebalance"], nReserveBalance))
1458 error("GetStakeWeight : invalid reserve balance amount");
1462 if (nBalance <= nReserveBalance)
1465 vector<const CWalletTx*> vwtxPrev;
1466 set<pair<const CWalletTx*,unsigned int> > setCoins;
1469 if (!SelectCoinsSimple(nBalance - nReserveBalance, GetTime(), nCoinbaseMaturity * 10, setCoins, nValueIn))
1472 if (setCoins.empty())
1475 CCoinsViewCache &view = *pcoinsTip;
1476 BOOST_FOREACH(PAIRTYPE(const CWalletTx*, unsigned int) pcoin, setCoins)
1480 LOCK2(cs_main, cs_wallet);
1481 if (!view.GetCoinsReadOnly(pcoin.first->GetHash(), coins))
1485 int64 nTimeWeight = GetWeight((int64)pcoin.first->nTime, (int64)GetTime());
1486 CBigNum bnCoinDayWeight = CBigNum(pcoin.first->vout[pcoin.second].nValue) * nTimeWeight / COIN / (24 * 60 * 60);
1488 // Weight is greater than zero
1489 if (nTimeWeight > 0)
1491 nWeight += bnCoinDayWeight.getuint64();
1494 // Weight is greater than zero, but the maximum value isn't reached yet
1495 if (nTimeWeight > 0 && nTimeWeight < nStakeMaxAge)
1497 nMinWeight += bnCoinDayWeight.getuint64();
1500 // Maximum weight was reached
1501 if (nTimeWeight == nStakeMaxAge)
1503 nMaxWeight += bnCoinDayWeight.getuint64();
1510 bool CWallet::CreateCoinStake(const CKeyStore& keystore, unsigned int nBits, int64 nSearchInterval, CTransaction& txNew, CKey& key)
1512 // The following combine threshold is important to security
1513 // Should not be adjusted if you don't understand the consequences
1514 int64 nCombineThreshold = GetProofOfWorkReward(GetLastBlockIndex(pindexBest, false)->nBits) / 3;
1515 CBlockIndex* pindexPrev = pindexBest;
1516 CBigNum bnTargetPerCoinDay;
1517 bnTargetPerCoinDay.SetCompact(nBits);
1522 // Mark coin stake transaction
1523 CScript scriptEmpty;
1524 scriptEmpty.clear();
1525 txNew.vout.push_back(CTxOut(0, scriptEmpty));
1527 // Choose coins to use
1528 int64 nBalance = GetBalance();
1529 int64 nReserveBalance = 0;
1531 if (mapArgs.count("-reservebalance") && !ParseMoney(mapArgs["-reservebalance"], nReserveBalance))
1532 return error("CreateCoinStake : invalid reserve balance amount");
1534 if (nBalance <= nReserveBalance)
1537 vector<const CWalletTx*> vwtxPrev;
1538 set<pair<const CWalletTx*,unsigned int> > setCoins;
1541 // Select coins with suitable depth
1542 if (!SelectCoinsSimple(nBalance - nReserveBalance, txNew.nTime, nCoinbaseMaturity * 10, setCoins, nValueIn))
1545 if (setCoins.empty())
1549 CScript scriptPubKeyKernel;
1551 CCoinsViewCache &view = *pcoinsTip;
1552 BOOST_FOREACH(PAIRTYPE(const CWalletTx*, unsigned int) pcoin, setCoins)
1556 LOCK2(cs_main, cs_wallet);
1557 if (!view.GetCoinsReadOnly(pcoin.first->GetHash(), coins))
1561 static int nMaxStakeSearchInterval = 60;
1562 if (coins.nBlockTime + nStakeMinAge > txNew.nTime - nMaxStakeSearchInterval)
1563 continue; // only count coins meeting min age requirement
1565 // Read block header
1567 unsigned int nTxPos = 0;
1569 LOCK2(cs_main, cs_wallet);
1570 CBlockIndex *pindex = FindBlockByHeight(coins.nHeight);
1572 if (!block.ReadFromDisk(pindex))
1575 BOOST_FOREACH(const CTransaction &tx, block.vtx) {
1576 if (tx.GetHash() == pcoin.first->GetHash()) {
1579 nTxPos += tx.GetSerializeSize(SER_DISK, CLIENT_VERSION);
1581 nTxPos += GetSerializeSize(CBlock(), SER_DISK, CLIENT_VERSION) - (2 * GetSizeOfCompactSize(0)) + GetSizeOfCompactSize(block.vtx.size());
1585 bool fFatal = false;
1586 bool fKernelFound = false;
1587 for (unsigned int n=0; n<min(nSearchInterval,(int64)nMaxStakeSearchInterval) && !fKernelFound && !fShutdown && pindexPrev == pindexBest; n++)
1589 // Search backward in time from the given txNew timestamp
1590 // Search nSearchInterval seconds back up to nMaxStakeSearchInterval
1591 uint256 hashProofOfStake = 0, targetProofOfStake = 0;
1592 COutPoint prevoutStake = COutPoint(pcoin.first->GetHash(), pcoin.second);
1593 if (CheckStakeKernelHash(nBits, block, nTxPos, *pcoin.first, prevoutStake, txNew.nTime - n, hashProofOfStake, targetProofOfStake, fFatal, true))
1596 if (fDebug && GetBoolArg("-printcoinstake"))
1597 printf("CreateCoinStake : kernel found\n");
1598 vector<valtype> vSolutions;
1599 txnouttype whichType;
1600 CScript scriptPubKeyOut;
1601 scriptPubKeyKernel = pcoin.first->vout[pcoin.second].scriptPubKey;
1602 if (!Solver(scriptPubKeyKernel, whichType, vSolutions))
1604 if (fDebug && GetBoolArg("-printcoinstake"))
1605 printf("CreateCoinStake : failed to parse kernel\n");
1608 if (fDebug && GetBoolArg("-printcoinstake"))
1609 printf("CreateCoinStake : parsed kernel type=%d\n", whichType);
1610 if (whichType != TX_PUBKEY && whichType != TX_PUBKEYHASH)
1612 if (fDebug && GetBoolArg("-printcoinstake"))
1613 printf("CreateCoinStake : no support for kernel type=%d\n", whichType);
1614 break; // only support pay to public key and pay to address
1616 if (whichType == TX_PUBKEYHASH) // pay to address type
1618 // convert to pay to public key type
1619 if (!keystore.GetKey(uint160(vSolutions[0]), key))
1621 if (fDebug && GetBoolArg("-printcoinstake"))
1622 printf("CreateCoinStake : failed to get key for kernel type=%d\n", whichType);
1623 break; // unable to find corresponding public key
1625 scriptPubKeyOut << key.GetPubKey() << OP_CHECKSIG;
1627 if (whichType == TX_PUBKEY)
1629 valtype& vchPubKey = vSolutions[0];
1630 if (!keystore.GetKey(Hash160(vchPubKey), key))
1632 if (fDebug && GetBoolArg("-printcoinstake"))
1633 printf("CreateCoinStake : failed to get key for kernel type=%d\n", whichType);
1634 break; // unable to find corresponding public key
1637 if (key.GetPubKey() != vchPubKey)
1639 if (fDebug && GetBoolArg("-printcoinstake"))
1640 printf("CreateCoinStake : invalid key for kernel type=%d\n", whichType);
1641 break; // keys mismatch
1644 scriptPubKeyOut = scriptPubKeyKernel;
1648 txNew.vin.push_back(CTxIn(pcoin.first->GetHash(), pcoin.second));
1649 nCredit += pcoin.first->vout[pcoin.second].nValue;
1650 vwtxPrev.push_back(pcoin.first);
1651 txNew.vout.push_back(CTxOut(0, scriptPubKeyOut));
1653 if (GetWeight(block.GetBlockTime(), (int64)txNew.nTime) < nStakeMaxAge)
1654 txNew.vout.push_back(CTxOut(0, scriptPubKeyOut)); //split stake
1655 if (fDebug && GetBoolArg("-printcoinstake"))
1656 printf("CreateCoinStake : added kernel type=%d\n", whichType);
1657 fKernelFound = true;
1662 if (fKernelFound || fShutdown)
1663 break; // if kernel is found stop searching
1666 if (nCredit == 0 || nCredit > nBalance - nReserveBalance)
1669 BOOST_FOREACH(PAIRTYPE(const CWalletTx*, unsigned int) pcoin, setCoins)
1671 // Attempt to add more inputs
1672 // Only add coins of the same key/address as kernel
1673 if (txNew.vout.size() == 2 && ((pcoin.first->vout[pcoin.second].scriptPubKey == scriptPubKeyKernel || pcoin.first->vout[pcoin.second].scriptPubKey == txNew.vout[1].scriptPubKey))
1674 && pcoin.first->GetHash() != txNew.vin[0].prevout.hash)
1676 int64 nTimeWeight = GetWeight((int64)pcoin.first->nTime, (int64)txNew.nTime);
1678 // Stop adding more inputs if already too many inputs
1679 if (txNew.vin.size() >= 100)
1681 // Stop adding more inputs if value is already pretty significant
1682 if (nCredit > nCombineThreshold)
1684 // Stop adding inputs if reached reserve limit
1685 if (nCredit + pcoin.first->vout[pcoin.second].nValue > nBalance - nReserveBalance)
1687 // Do not add additional significant input
1688 if (pcoin.first->vout[pcoin.second].nValue > nCombineThreshold)
1690 // Do not add input that is still too young
1691 if (nTimeWeight < nStakeMaxAge)
1694 txNew.vin.push_back(CTxIn(pcoin.first->GetHash(), pcoin.second));
1695 nCredit += pcoin.first->vout[pcoin.second].nValue;
1696 vwtxPrev.push_back(pcoin.first);
1700 // Calculate coin age reward
1704 if (!txNew.GetCoinAge(nCoinAge))
1705 return error("CreateCoinStake : failed to calculate coin age");
1706 nCredit += GetProofOfStakeReward(nCoinAge, nBits, txNew.nTime);
1712 // Set output amount
1713 if (txNew.vout.size() == 3)
1715 txNew.vout[1].nValue = ((nCredit - nMinFee) / 2 / CENT) * CENT;
1716 txNew.vout[2].nValue = nCredit - nMinFee - txNew.vout[1].nValue;
1719 txNew.vout[1].nValue = nCredit - nMinFee;
1723 BOOST_FOREACH(const CWalletTx* pcoin, vwtxPrev)
1725 if (!SignSignature(*this, *pcoin, txNew, nIn++))
1726 return error("CreateCoinStake : failed to sign coinstake");
1730 unsigned int nBytes = ::GetSerializeSize(txNew, SER_NETWORK, PROTOCOL_VERSION);
1731 if (nBytes >= MAX_BLOCK_SIZE_GEN/5)
1732 return error("CreateCoinStake : exceeded coinstake size limit");
1734 // Check enough fee is paid
1735 if (nMinFee < txNew.GetMinFee() - MIN_TX_FEE)
1737 nMinFee = txNew.GetMinFee() - MIN_TX_FEE;
1738 continue; // try signing again
1742 if (fDebug && GetBoolArg("-printfee"))
1743 printf("CreateCoinStake : fee for coinstake %s\n", FormatMoney(nMinFee).c_str());
1748 // Successfully generated coinstake
1753 // Call after CreateTransaction unless you want to abort
1754 bool CWallet::CommitTransaction(CWalletTx& wtxNew, CReserveKey& reservekey)
1757 LOCK2(cs_main, cs_wallet);
1758 printf("CommitTransaction:\n%s", wtxNew.ToString().c_str());
1760 // This is only to keep the database open to defeat the auto-flush for the
1761 // duration of this scope. This is the only place where this optimization
1762 // maybe makes sense; please don't do it anywhere else.
1763 CWalletDB* pwalletdb = fFileBacked ? new CWalletDB(strWalletFile,"r") : NULL;
1765 // Take key pair from key pool so it won't be used again
1766 reservekey.KeepKey();
1768 // Add tx to wallet, because if it has change it's also ours,
1769 // otherwise just for transaction history.
1770 AddToWallet(wtxNew);
1772 // Mark old coins as spent
1773 set<CWalletTx*> setCoins;
1774 BOOST_FOREACH(const CTxIn& txin, wtxNew.vin)
1776 CWalletTx &coin = mapWallet[txin.prevout.hash];
1777 coin.BindWallet(this);
1778 coin.MarkSpent(txin.prevout.n);
1780 NotifyTransactionChanged(this, coin.GetHash(), CT_UPDATED);
1787 // Track how many getdata requests our transaction gets
1788 mapRequestCount[wtxNew.GetHash()] = 0;
1791 if (!wtxNew.AcceptToMemoryPool())
1793 // This must not fail. The transaction has already been signed and recorded.
1794 printf("CommitTransaction() : Error: Transaction not valid");
1797 wtxNew.RelayWalletTransaction();
1805 string CWallet::SendMoney(CScript scriptPubKey, int64 nValue, CWalletTx& wtxNew, bool fAskFee)
1807 CReserveKey reservekey(this);
1812 string strError = _("Error: Wallet locked, unable to create transaction ");
1813 printf("SendMoney() : %s", strError.c_str());
1816 if (fWalletUnlockMintOnly)
1818 string strError = _("Error: Wallet unlocked for block minting only, unable to create transaction.");
1819 printf("SendMoney() : %s", strError.c_str());
1822 if (!CreateTransaction(scriptPubKey, nValue, wtxNew, reservekey, nFeeRequired))
1825 if (nValue + nFeeRequired > GetBalance())
1826 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());
1828 strError = _("Error: Transaction creation failed ");
1829 printf("SendMoney() : %s", strError.c_str());
1833 if (fAskFee && !uiInterface.ThreadSafeAskFee(nFeeRequired, _("Sending...")))
1836 if (!CommitTransaction(wtxNew, reservekey))
1837 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.");
1844 string CWallet::SendMoneyToDestination(const CTxDestination& address, int64 nValue, CWalletTx& wtxNew, bool fAskFee)
1848 return _("Invalid amount");
1849 if (nValue + nTransactionFee > GetBalance())
1850 return _("Insufficient funds");
1852 // Parse Bitcoin address
1853 CScript scriptPubKey;
1854 scriptPubKey.SetDestination(address);
1856 return SendMoney(scriptPubKey, nValue, wtxNew, fAskFee);
1862 DBErrors CWallet::LoadWallet(bool& fFirstRunRet)
1866 fFirstRunRet = false;
1867 DBErrors nLoadWalletRet = CWalletDB(strWalletFile,"cr+").LoadWallet(this);
1868 if (nLoadWalletRet == DB_NEED_REWRITE)
1870 if (CDB::Rewrite(strWalletFile, "\x04pool"))
1873 // Note: can't top-up keypool here, because wallet is locked.
1874 // User will be prompted to unlock wallet the next operation
1875 // the requires a new key.
1879 if (nLoadWalletRet != DB_LOAD_OK)
1880 return nLoadWalletRet;
1881 fFirstRunRet = !vchDefaultKey.IsValid();
1883 NewThread(ThreadFlushWalletDB, &strWalletFile);
1887 DBErrors CWallet::ZapWalletTx()
1891 DBErrors nZapWalletTxRet = CWalletDB(strWalletFile,"cr+").ZapWalletTx(this);
1892 if (nZapWalletTxRet == DB_NEED_REWRITE)
1894 if (CDB::Rewrite(strWalletFile, "\x04pool"))
1898 // Note: can't top-up keypool here, because wallet is locked.
1899 // User will be prompted to unlock wallet the next operation
1900 // the requires a new key.
1904 if (nZapWalletTxRet != DB_LOAD_OK)
1905 return nZapWalletTxRet;
1910 bool CWallet::SetAddressBookName(const CTxDestination& address, const string& strName)
1912 std::map<CTxDestination, std::string>::iterator mi = mapAddressBook.find(address);
1913 mapAddressBook[address] = strName;
1914 NotifyAddressBookChanged(this, address, strName, ::IsMine(*this, address), (mi == mapAddressBook.end()) ? CT_NEW : CT_UPDATED);
1917 return CWalletDB(strWalletFile).WriteName(CBitcoinAddress(address).ToString(), strName);
1920 bool CWallet::DelAddressBookName(const CTxDestination& address)
1922 mapAddressBook.erase(address);
1923 NotifyAddressBookChanged(this, address, "", ::IsMine(*this, address), CT_DELETED);
1926 return CWalletDB(strWalletFile).EraseName(CBitcoinAddress(address).ToString());
1930 void CWallet::PrintWallet(const CBlock& block)
1934 if (block.IsProofOfWork() && mapWallet.count(block.vtx[0].GetHash()))
1936 CWalletTx& wtx = mapWallet[block.vtx[0].GetHash()];
1937 printf(" mine: %d %d %"PRI64d"", wtx.GetDepthInMainChain(), wtx.GetBlocksToMaturity(), wtx.GetCredit());
1939 if (block.IsProofOfStake() && mapWallet.count(block.vtx[1].GetHash()))
1941 CWalletTx& wtx = mapWallet[block.vtx[1].GetHash()];
1942 printf(" stake: %d %d %"PRI64d"", wtx.GetDepthInMainChain(), wtx.GetBlocksToMaturity(), wtx.GetCredit());
1949 bool CWallet::GetTransaction(const uint256 &hashTx, CWalletTx& wtx)
1953 map<uint256, CWalletTx>::iterator mi = mapWallet.find(hashTx);
1954 if (mi != mapWallet.end())
1963 bool CWallet::SetDefaultKey(const CPubKey &vchPubKey)
1967 if (!CWalletDB(strWalletFile).WriteDefaultKey(vchPubKey))
1970 vchDefaultKey = vchPubKey;
1974 bool GetWalletFile(CWallet* pwallet, string &strWalletFileOut)
1976 if (!pwallet->fFileBacked)
1978 strWalletFileOut = pwallet->strWalletFile;
1983 // Mark old keypool keys as used,
1984 // and generate all new keys
1986 bool CWallet::NewKeyPool()
1990 CWalletDB walletdb(strWalletFile);
1991 BOOST_FOREACH(int64 nIndex, setKeyPool)
1992 walletdb.ErasePool(nIndex);
1998 int64 nKeys = max(GetArg("-keypool", 100), (int64)0);
1999 for (int i = 0; i < nKeys; i++)
2002 walletdb.WritePool(nIndex, CKeyPool(GenerateNewKey()));
2003 setKeyPool.insert(nIndex);
2005 printf("CWallet::NewKeyPool wrote %"PRI64d" new keys\n", nKeys);
2010 bool CWallet::TopUpKeyPool(unsigned int nSize)
2018 CWalletDB walletdb(strWalletFile);
2021 unsigned int nTargetSize;
2023 nTargetSize = nSize;
2025 nTargetSize = max(GetArg("-keypool", 100), 0LL);
2027 while (setKeyPool.size() < (nTargetSize + 1))
2030 if (!setKeyPool.empty())
2031 nEnd = *(--setKeyPool.end()) + 1;
2032 if (!walletdb.WritePool(nEnd, CKeyPool(GenerateNewKey())))
2033 throw runtime_error("TopUpKeyPool() : writing generated key failed");
2034 setKeyPool.insert(nEnd);
2035 printf("keypool added key %"PRI64d", size=%"PRIszu"\n", nEnd, setKeyPool.size());
2041 void CWallet::ReserveKeyFromKeyPool(int64& nIndex, CKeyPool& keypool)
2044 keypool.vchPubKey = CPubKey();
2051 // Get the oldest key
2052 if(setKeyPool.empty())
2055 CWalletDB walletdb(strWalletFile);
2057 nIndex = *(setKeyPool.begin());
2058 setKeyPool.erase(setKeyPool.begin());
2059 if (!walletdb.ReadPool(nIndex, keypool))
2060 throw runtime_error("ReserveKeyFromKeyPool() : read failed");
2061 if (!HaveKey(keypool.vchPubKey.GetID()))
2062 throw runtime_error("ReserveKeyFromKeyPool() : unknown key in key pool");
2063 assert(keypool.vchPubKey.IsValid());
2064 if (fDebug && GetBoolArg("-printkeypool"))
2065 printf("keypool reserve %"PRI64d"\n", nIndex);
2069 int64 CWallet::AddReserveKey(const CKeyPool& keypool)
2072 LOCK2(cs_main, cs_wallet);
2073 CWalletDB walletdb(strWalletFile);
2075 int64 nIndex = 1 + *(--setKeyPool.end());
2076 if (!walletdb.WritePool(nIndex, keypool))
2077 throw runtime_error("AddReserveKey() : writing added key failed");
2078 setKeyPool.insert(nIndex);
2084 void CWallet::KeepKey(int64 nIndex)
2086 // Remove from key pool
2089 CWalletDB walletdb(strWalletFile);
2090 walletdb.ErasePool(nIndex);
2093 printf("keypool keep %"PRI64d"\n", nIndex);
2096 void CWallet::ReturnKey(int64 nIndex)
2098 // Return to key pool
2101 setKeyPool.insert(nIndex);
2104 printf("keypool return %"PRI64d"\n", nIndex);
2107 bool CWallet::GetKeyFromPool(CPubKey& result, bool fAllowReuse)
2113 ReserveKeyFromKeyPool(nIndex, keypool);
2116 if (fAllowReuse && vchDefaultKey.IsValid())
2118 result = vchDefaultKey;
2121 if (IsLocked()) return false;
2122 result = GenerateNewKey();
2126 result = keypool.vchPubKey;
2131 int64 CWallet::GetOldestKeyPoolTime()
2135 ReserveKeyFromKeyPool(nIndex, keypool);
2139 return keypool.nTime;
2142 std::map<CTxDestination, int64> CWallet::GetAddressBalances()
2144 map<CTxDestination, int64> balances;
2148 BOOST_FOREACH(PAIRTYPE(uint256, CWalletTx) walletEntry, mapWallet)
2150 CWalletTx *pcoin = &walletEntry.second;
2152 if (!pcoin->IsFinal() || !pcoin->IsTrusted())
2155 if ((pcoin->IsCoinBase() || pcoin->IsCoinStake()) && pcoin->GetBlocksToMaturity() > 0)
2158 int nDepth = pcoin->GetDepthInMainChain();
2159 if (nDepth < (pcoin->IsFromMe() ? 0 : 1))
2162 for (unsigned int i = 0; i < pcoin->vout.size(); i++)
2164 CTxDestination addr;
2165 if (!IsMine(pcoin->vout[i]))
2167 if(!ExtractDestination(pcoin->vout[i].scriptPubKey, addr))
2170 int64 n = pcoin->IsSpent(i) ? 0 : pcoin->vout[i].nValue;
2172 if (!balances.count(addr))
2174 balances[addr] += n;
2182 set< set<CTxDestination> > CWallet::GetAddressGroupings()
2184 set< set<CTxDestination> > groupings;
2185 set<CTxDestination> grouping;
2187 BOOST_FOREACH(PAIRTYPE(uint256, CWalletTx) walletEntry, mapWallet)
2189 CWalletTx *pcoin = &walletEntry.second;
2191 if (pcoin->vin.size() > 0 && IsMine(pcoin->vin[0]))
2193 // group all input addresses with each other
2194 BOOST_FOREACH(CTxIn txin, pcoin->vin)
2196 CTxDestination address;
2197 if(!ExtractDestination(mapWallet[txin.prevout.hash].vout[txin.prevout.n].scriptPubKey, address))
2199 grouping.insert(address);
2202 // group change with input addresses
2203 BOOST_FOREACH(CTxOut txout, pcoin->vout)
2204 if (IsChange(txout))
2206 CWalletTx tx = mapWallet[pcoin->vin[0].prevout.hash];
2207 CTxDestination txoutAddr;
2208 if(!ExtractDestination(txout.scriptPubKey, txoutAddr))
2210 grouping.insert(txoutAddr);
2212 groupings.insert(grouping);
2216 // group lone addrs by themselves
2217 for (unsigned int i = 0; i < pcoin->vout.size(); i++)
2218 if (IsMine(pcoin->vout[i]))
2220 CTxDestination address;
2221 if(!ExtractDestination(pcoin->vout[i].scriptPubKey, address))
2223 grouping.insert(address);
2224 groupings.insert(grouping);
2229 set< set<CTxDestination>* > uniqueGroupings; // a set of pointers to groups of addresses
2230 map< CTxDestination, set<CTxDestination>* > setmap; // map addresses to the unique group containing it
2231 BOOST_FOREACH(set<CTxDestination> grouping, groupings)
2233 // make a set of all the groups hit by this new group
2234 set< set<CTxDestination>* > hits;
2235 map< CTxDestination, set<CTxDestination>* >::iterator it;
2236 BOOST_FOREACH(CTxDestination address, grouping)
2237 if ((it = setmap.find(address)) != setmap.end())
2238 hits.insert((*it).second);
2240 // merge all hit groups into a new single group and delete old groups
2241 set<CTxDestination>* merged = new set<CTxDestination>(grouping);
2242 BOOST_FOREACH(set<CTxDestination>* hit, hits)
2244 merged->insert(hit->begin(), hit->end());
2245 uniqueGroupings.erase(hit);
2248 uniqueGroupings.insert(merged);
2251 BOOST_FOREACH(CTxDestination element, *merged)
2252 setmap[element] = merged;
2255 set< set<CTxDestination> > ret;
2256 BOOST_FOREACH(set<CTxDestination>* uniqueGrouping, uniqueGroupings)
2258 ret.insert(*uniqueGrouping);
2259 delete uniqueGrouping;
2265 // 1. check 'spent' consistency between wallet and coins database
2266 // 2. fix wallet spent state according to coins database
2267 // 3. remove orphaned coinstakes and coinbases from wallet
2268 void CWallet::FixSpentCoins(int& nMismatchFound, int64& nBalanceInQuestion, bool fCheckOnly)
2271 nBalanceInQuestion = 0;
2274 vector<CWalletTx*> vCoins;
2275 vCoins.reserve(mapWallet.size());
2276 for (map<uint256, CWalletTx>::iterator it = mapWallet.begin(); it != mapWallet.end(); ++it)
2277 vCoins.push_back(&(*it).second);
2279 CCoinsViewCache &view = *pcoinsTip;
2280 BOOST_FOREACH(CWalletTx* pcoin, vCoins)
2282 uint256 hash = pcoin->GetHash();
2283 if(!view.HaveCoins(hash))
2286 // Find the corresponding transaction index
2287 CCoins &coins = view.GetCoins(hash);
2289 for (unsigned int n=0; n < pcoin->vout.size(); n++)
2291 bool fUpdated = false;
2292 if (IsMine(pcoin->vout[n]))
2294 if (pcoin->IsSpent(n) && coins.IsAvailable(n))
2296 printf("FixSpentCoins found lost coin %snvc %s[%d], %s\n",
2297 FormatMoney(pcoin->vout[n].nValue).c_str(), hash.ToString().c_str(), n, fCheckOnly? "repair not attempted" : "repairing");
2299 nBalanceInQuestion += pcoin->vout[n].nValue;
2303 pcoin->MarkUnspent(n);
2304 pcoin->WriteToDisk();
2307 else if (!pcoin->IsSpent(n) && !coins.IsAvailable(n))
2309 printf("FixSpentCoins found spent coin %snvc %s[%d], %s\n",
2310 FormatMoney(pcoin->vout[n].nValue).c_str(), hash.ToString().c_str(), n, fCheckOnly? "repair not attempted" : "repairing");
2312 nBalanceInQuestion += pcoin->vout[n].nValue;
2316 pcoin->MarkSpent(n);
2317 pcoin->WriteToDisk();
2322 NotifyTransactionChanged(this, hash, CT_UPDATED);
2326 if((pcoin->IsCoinBase() || pcoin->IsCoinStake()) && pcoin->GetDepthInMainChain() == 0)
2330 EraseFromWallet(hash);
2331 NotifyTransactionChanged(this, hash, CT_DELETED);
2334 printf("FixSpentCoins %s orphaned generation tx %s\n", fCheckOnly ? "found" : "removed", hash.ToString().c_str());
2339 // ppcoin: disable transaction (only for coinstake)
2340 void CWallet::DisableTransaction(const CTransaction &tx)
2342 if (!tx.IsCoinStake() || !IsFromMe(tx))
2343 return; // only disconnecting coinstake requires marking input unspent
2346 BOOST_FOREACH(const CTxIn& txin, tx.vin)
2348 map<uint256, CWalletTx>::iterator mi = mapWallet.find(txin.prevout.hash);
2349 if (mi != mapWallet.end())
2351 CWalletTx& prev = (*mi).second;
2352 if (txin.prevout.n < prev.vout.size() && IsMine(prev.vout[txin.prevout.n]))
2354 prev.MarkUnspent(txin.prevout.n);
2361 CPubKey CReserveKey::GetReservedKey()
2366 pwallet->ReserveKeyFromKeyPool(nIndex, keypool);
2368 vchPubKey = keypool.vchPubKey;
2371 printf("CReserveKey::GetReservedKey(): Warning: Using default key instead of a new key, top up your keypool!");
2372 vchPubKey = pwallet->vchDefaultKey;
2375 assert(vchPubKey.IsValid());
2379 void CReserveKey::KeepKey()
2382 pwallet->KeepKey(nIndex);
2384 vchPubKey = CPubKey();
2387 void CReserveKey::ReturnKey()
2390 pwallet->ReturnKey(nIndex);
2392 vchPubKey = CPubKey();
2395 void CWallet::GetAllReserveKeys(set<CKeyID>& setAddress) const
2399 CWalletDB walletdb(strWalletFile);
2401 LOCK2(cs_main, cs_wallet);
2402 BOOST_FOREACH(const int64& id, setKeyPool)
2405 if (!walletdb.ReadPool(id, keypool))
2406 throw runtime_error("GetAllReserveKeyHashes() : read failed");
2407 assert(keypool.vchPubKey.IsValid());
2408 CKeyID keyID = keypool.vchPubKey.GetID();
2409 if (!HaveKey(keyID))
2410 throw runtime_error("GetAllReserveKeyHashes() : unknown key in key pool");
2411 setAddress.insert(keyID);
2415 void CWallet::UpdatedTransaction(const uint256 &hashTx)
2419 // Only notify UI if this transaction is in this wallet
2420 map<uint256, CWalletTx>::const_iterator mi = mapWallet.find(hashTx);
2421 if (mi != mapWallet.end())
2422 NotifyTransactionChanged(this, hashTx, CT_UPDATED);
2426 void CWallet::GetKeyBirthTimes(std::map<CKeyID, int64> &mapKeyBirth) const {
2427 mapKeyBirth.clear();
2429 // get birth times for keys with metadata
2430 for (std::map<CKeyID, CKeyMetadata>::const_iterator it = mapKeyMetadata.begin(); it != mapKeyMetadata.end(); it++)
2431 if (it->second.nCreateTime)
2432 mapKeyBirth[it->first] = it->second.nCreateTime;
2434 // map in which we'll infer heights of other keys
2435 CBlockIndex *pindexMax = FindBlockByHeight(std::max(0, nBestHeight - 144)); // the tip can be reorganised; use a 144-block safety margin
2436 std::map<CKeyID, CBlockIndex*> mapKeyFirstBlock;
2437 std::set<CKeyID> setKeys;
2439 BOOST_FOREACH(const CKeyID &keyid, setKeys) {
2440 if (mapKeyBirth.count(keyid) == 0)
2441 mapKeyFirstBlock[keyid] = pindexMax;
2445 // if there are no such keys, we're done
2446 if (mapKeyFirstBlock.empty())
2449 // find first block that affects those keys, if there are any left
2450 std::vector<CKeyID> vAffected;
2451 for (std::map<uint256, CWalletTx>::const_iterator it = mapWallet.begin(); it != mapWallet.end(); it++) {
2452 // iterate over all wallet transactions...
2453 const CWalletTx &wtx = (*it).second;
2454 std::map<uint256, CBlockIndex*>::const_iterator blit = mapBlockIndex.find(wtx.hashBlock);
2455 if (blit != mapBlockIndex.end() && blit->second->IsInMainChain()) {
2456 // ... which are already in a block
2457 int nHeight = blit->second->nHeight;
2458 BOOST_FOREACH(const CTxOut &txout, wtx.vout) {
2459 // iterate over all their outputs
2460 ::ExtractAffectedKeys(*this, txout.scriptPubKey, vAffected);
2461 BOOST_FOREACH(const CKeyID &keyid, vAffected) {
2462 // ... and all their affected keys
2463 std::map<CKeyID, CBlockIndex*>::iterator rit = mapKeyFirstBlock.find(keyid);
2464 if (rit != mapKeyFirstBlock.end() && nHeight < rit->second->nHeight)
2465 rit->second = blit->second;
2472 // Extract block timestamps for those keys
2473 for (std::map<CKeyID, CBlockIndex*>::const_iterator it = mapKeyFirstBlock.begin(); it != mapKeyFirstBlock.end(); it++)
2474 mapKeyBirth[it->first] = it->second->nTime - 7200; // block times can be 2h off