src/wallet.h

   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.
   5 #ifndef BITCOIN_WALLET_H
   6 #define BITCOIN_WALLET_H
   7
   8 #include "main.h"
   9 #include "key.h"
  10 #include "keystore.h"
  11 #include "script.h"
  12 #include "ui_interface.h"
  13
  14 class CWalletTx;
  15 class CReserveKey;
  16 class CWalletDB;
  17 class COutput;
  18
  19 /** (client) version numbers for particular wallet features */
  20 enum WalletFeature
  21 {
  22     FEATURE_BASE = 10500, // the earliest version new wallets supports (only useful for getinfo's clientversion output)
  23
  24     FEATURE_WALLETCRYPT = 40000, // wallet encryption
  25     FEATURE_COMPRPUBKEY = 60000, // compressed public keys
  26
  27     FEATURE_LATEST = 60000
  28 };
  29
  30
  31 /** A key pool entry */
  32 class CKeyPool
  33 {
  34 public:
  35     int64 nTime;
  36     CPubKey vchPubKey;
  37
  38     CKeyPool()
  39     {
  40         nTime = GetTime();
  41     }
  42
  43     CKeyPool(const CPubKey& vchPubKeyIn)
  44     {
  45         nTime = GetTime();
  46         vchPubKey = vchPubKeyIn;
  47     }
  48
  49     IMPLEMENT_SERIALIZE
  50     (
  51         if (!(nType & SER_GETHASH))
  52             READWRITE(nVersion);
  53         READWRITE(nTime);
  54         READWRITE(vchPubKey);
  55     )
  56 };
  57
  58 /** A CWallet is an extension of a keystore, which also maintains a set of transactions and balances,
  59  * and provides the ability to create new transactions.
  60  */
  61 class CWallet : public CCryptoKeyStore
  62 {
  63 private:
  64     void AvailableCoins(std::vector<COutput>& vCoins) const;
  65     bool SelectCoins(int64 nTargetValue, std::set<std::pair<const CWalletTx*,unsigned int> >& setCoinsRet, int64& nValueRet) const;
  66
  67     CWalletDB *pwalletdbEncryption;
  68
  69     // the current wallet version: clients below this version are not able to load the wallet
  70     int nWalletVersion;
  71
  72     // the maxmimum wallet format version: memory-only variable that specifies to what version this wallet may be upgraded
  73     int nWalletMaxVersion;
  74
  75 public:
  76     mutable CCriticalSection cs_wallet;
  77
  78     bool fFileBacked;
  79     std::string strWalletFile;
  80
  81     std::set<int64> setKeyPool;
  82
  83
  84     typedef std::map<unsigned int, CMasterKey> MasterKeyMap;
  85     MasterKeyMap mapMasterKeys;
  86     unsigned int nMasterKeyMaxID;
  87
  88     CWallet()
  89     {
  90         nWalletVersion = FEATURE_BASE;
  91         nWalletMaxVersion = FEATURE_BASE;
  92         fFileBacked = false;
  93         nMasterKeyMaxID = 0;
  94         pwalletdbEncryption = NULL;
  95     }
  96     CWallet(std::string strWalletFileIn)
  97     {
  98         nWalletVersion = FEATURE_BASE;
  99         nWalletMaxVersion = FEATURE_BASE;
 100         strWalletFile = strWalletFileIn;
 101         fFileBacked = true;
 102         nMasterKeyMaxID = 0;
 103         pwalletdbEncryption = NULL;
 104     }
 105
 106     std::map<uint256, CWalletTx> mapWallet;
 107     std::map<uint256, int> mapRequestCount;
 108
 109     std::map<CTxDestination, std::string> mapAddressBook;
 110
 111     CPubKey vchDefaultKey;
 112
 113     // check whether we are allowed to upgrade (or already support) to the named feature
 114     bool CanSupportFeature(enum WalletFeature wf) { return nWalletMaxVersion >= wf; }
 115
 116     bool SelectCoinsMinConf(int64 nTargetValue, int nConfMine, int nConfTheirs, std::vector<COutput> vCoins, std::set<std::pair<const CWalletTx*,unsigned int> >& setCoinsRet, int64& nValueRet) const;
 117
 118     // keystore implementation
 119     // Generate a new key
 120     CPubKey GenerateNewKey();
 121     // Adds a key to the store, and saves it to disk.
 122     bool AddKey(const CKey& key);
 123     // Adds a key to the store, without saving it to disk (used by LoadWallet)
 124     bool LoadKey(const CKey& key) { return CCryptoKeyStore::AddKey(key); }
 125
 126     bool LoadMinVersion(int nVersion) { nWalletVersion = nVersion; nWalletMaxVersion = std::max(nWalletMaxVersion, nVersion); return true; }
 127
 128     // Adds an encrypted key to the store, and saves it to disk.
 129     bool AddCryptedKey(const CPubKey &vchPubKey, const std::vector<unsigned char> &vchCryptedSecret);
 130     // Adds an encrypted key to the store, without saving it to disk (used by LoadWallet)
 131     bool LoadCryptedKey(const CPubKey &vchPubKey, const std::vector<unsigned char> &vchCryptedSecret) { SetMinVersion(FEATURE_WALLETCRYPT); return CCryptoKeyStore::AddCryptedKey(vchPubKey, vchCryptedSecret); }
 132     bool AddCScript(const CScript& redeemScript);
 133     bool LoadCScript(const CScript& redeemScript) { return CCryptoKeyStore::AddCScript(redeemScript); }
 134
 135     bool Unlock(const SecureString& strWalletPassphrase);
 136     bool ChangeWalletPassphrase(const SecureString& strOldWalletPassphrase, const SecureString& strNewWalletPassphrase);
 137     bool EncryptWallet(const SecureString& strWalletPassphrase);
 138
 139     void MarkDirty();
 140     bool AddToWallet(const CWalletTx& wtxIn);
 141     bool AddToWalletIfInvolvingMe(const CTransaction& tx, const CBlock* pblock, bool fUpdate = false, bool fFindBlock = false);
 142     bool EraseFromWallet(uint256 hash);
 143     void WalletUpdateSpent(const CTransaction& prevout);
 144     int ScanForWalletTransactions(CBlockIndex* pindexStart, bool fUpdate = false);
 145     int ScanForWalletTransaction(const uint256& hashTx);
 146     void ReacceptWalletTransactions();
 147     void ResendWalletTransactions();
 148     int64 GetBalance() const;
 149     int64 GetUnconfirmedBalance() const;
 150     int64 GetImmatureBalance() const;
 151     bool CreateTransaction(const std::vector<std::pair<CScript, int64> >& vecSend, CWalletTx& wtxNew, CReserveKey& reservekey, int64& nFeeRet);
 152     bool CreateTransaction(CScript scriptPubKey, int64 nValue, CWalletTx& wtxNew, CReserveKey& reservekey, int64& nFeeRet);
 153     bool CommitTransaction(CWalletTx& wtxNew, CReserveKey& reservekey);
 154     std::string SendMoney(CScript scriptPubKey, int64 nValue, CWalletTx& wtxNew, bool fAskFee=false);
 155     std::string SendMoneyToDestination(const CTxDestination &address, int64 nValue, CWalletTx& wtxNew, bool fAskFee=false);
 156
 157     bool NewKeyPool();
 158     bool TopUpKeyPool();
 159     int64 AddReserveKey(const CKeyPool& keypool);
 160     void ReserveKeyFromKeyPool(int64& nIndex, CKeyPool& keypool);
 161     void KeepKey(int64 nIndex);
 162     void ReturnKey(int64 nIndex);
 163     bool GetKeyFromPool(CPubKey &key, bool fAllowReuse=true);
 164     int64 GetOldestKeyPoolTime();
 165     void GetAllReserveKeys(std::set<CKeyID>& setAddress);
 166
 167     bool IsMine(const CTxIn& txin) const;
 168     int64 GetDebit(const CTxIn& txin) const;
 169     bool IsMine(const CTxOut& txout) const
 170     {
 171         return ::IsMine(*this, txout.scriptPubKey);
 172     }
 173     int64 GetCredit(const CTxOut& txout) const
 174     {
 175         if (!MoneyRange(txout.nValue))
 176             throw std::runtime_error("CWallet::GetCredit() : value out of range");
 177         return (IsMine(txout) ? txout.nValue : 0);
 178     }
 179     bool IsChange(const CTxOut& txout) const;
 180     int64 GetChange(const CTxOut& txout) const
 181     {
 182         if (!MoneyRange(txout.nValue))
 183             throw std::runtime_error("CWallet::GetChange() : value out of range");
 184         return (IsChange(txout) ? txout.nValue : 0);
 185     }
 186     bool IsMine(const CTransaction& tx) const
 187     {
 188         BOOST_FOREACH(const CTxOut& txout, tx.vout)
 189             if (IsMine(txout))
 190                 return true;
 191         return false;
 192     }
 193     bool IsFromMe(const CTransaction& tx) const
 194     {
 195         return (GetDebit(tx) > 0);
 196     }
 197     int64 GetDebit(const CTransaction& tx) const
 198     {
 199         int64 nDebit = 0;
 200         BOOST_FOREACH(const CTxIn& txin, tx.vin)
 201         {
 202             nDebit += GetDebit(txin);
 203             if (!MoneyRange(nDebit))
 204                 throw std::runtime_error("CWallet::GetDebit() : value out of range");
 205         }
 206         return nDebit;
 207     }
 208     int64 GetCredit(const CTransaction& tx) const
 209     {
 210         int64 nCredit = 0;
 211         BOOST_FOREACH(const CTxOut& txout, tx.vout)
 212         {
 213             nCredit += GetCredit(txout);
 214             if (!MoneyRange(nCredit))
 215                 throw std::runtime_error("CWallet::GetCredit() : value out of range");
 216         }
 217         return nCredit;
 218     }
 219     int64 GetChange(const CTransaction& tx) const
 220     {
 221         int64 nChange = 0;
 222         BOOST_FOREACH(const CTxOut& txout, tx.vout)
 223         {
 224             nChange += GetChange(txout);
 225             if (!MoneyRange(nChange))
 226                 throw std::runtime_error("CWallet::GetChange() : value out of range");
 227         }
 228         return nChange;
 229     }
 230     void SetBestChain(const CBlockLocator& loc);
 231
 232     int LoadWallet(bool& fFirstRunRet);
 233
 234     bool SetAddressBookName(const CTxDestination& address, const std::string& strName);
 235
 236     bool DelAddressBookName(const CTxDestination& address);
 237
 238     void UpdatedTransaction(const uint256 &hashTx);
 239
 240     void PrintWallet(const CBlock& block);
 241
 242     void Inventory(const uint256 &hash)
 243     {
 244         {
 245             LOCK(cs_wallet);
 246             std::map<uint256, int>::iterator mi = mapRequestCount.find(hash);
 247             if (mi != mapRequestCount.end())
 248                 (*mi).second++;
 249         }
 250     }
 251
 252     int GetKeyPoolSize()
 253     {
 254         return setKeyPool.size();
 255     }
 256
 257     bool GetTransaction(const uint256 &hashTx, CWalletTx& wtx);
 258
 259     bool SetDefaultKey(const CPubKey &vchPubKey);
 260
 261     // signify that a particular wallet feature is now used. this may change nWalletVersion and nWalletMaxVersion if those are lower
 262     bool SetMinVersion(enum WalletFeature, CWalletDB* pwalletdbIn = NULL, bool fExplicit = false);
 263
 264     // change which version we're allowed to upgrade to (note that this does not immediately imply upgrading to that format)
 265     bool SetMaxVersion(int nVersion);
 266
 267     // get the current wallet format (the oldest client version guaranteed to understand this wallet)
 268     int GetVersion() { return nWalletVersion; }
 269
 270     /** Address book entry changed.
 271      * @note called with lock cs_wallet held.
 272      */
 273     boost::signals2::signal<void (CWallet *wallet, const CTxDestination &address, const std::string &label, bool isMine, ChangeType status)> NotifyAddressBookChanged;
 274
 275     /** Wallet transaction added, removed or updated.
 276      * @note called with lock cs_wallet held.
 277      */
 278     boost::signals2::signal<void (CWallet *wallet, const uint256 &hashTx, ChangeType status)> NotifyTransactionChanged;
 279 };
 280
 281 /** A key allocated from the key pool. */
 282 class CReserveKey
 283 {
 284 protected:
 285     CWallet* pwallet;
 286     int64 nIndex;
 287     CPubKey vchPubKey;
 288 public:
 289     CReserveKey(CWallet* pwalletIn)
 290     {
 291         nIndex = -1;
 292         pwallet = pwalletIn;
 293     }
 294
 295     ~CReserveKey()
 296     {
 297         if (!fShutdown)
 298             ReturnKey();
 299     }
 300
 301     void ReturnKey();
 302     CPubKey GetReservedKey();
 303     void KeepKey();
 304 };
 305
 306
 307 /** A transaction with a bunch of additional info that only the owner cares about.
 308  * It includes any unrecorded transactions needed to link it back to the block chain.
 309  */
 310 class CWalletTx : public CMerkleTx
 311 {
 312 private:
 313     const CWallet* pwallet;
 314
 315 public:
 316     std::vector<CMerkleTx> vtxPrev;
 317     std::map<std::string, std::string> mapValue;
 318     std::vector<std::pair<std::string, std::string> > vOrderForm;
 319     unsigned int fTimeReceivedIsTxTime;
 320     unsigned int nTimeReceived;  // time received by this node
 321     char fFromMe;
 322     std::string strFromAccount;
 323     std::vector<char> vfSpent; // which outputs are already spent
 324
 325     // memory only
 326     mutable bool fDebitCached;
 327     mutable bool fCreditCached;
 328     mutable bool fAvailableCreditCached;
 329     mutable bool fChangeCached;
 330     mutable int64 nDebitCached;
 331     mutable int64 nCreditCached;
 332     mutable int64 nAvailableCreditCached;
 333     mutable int64 nChangeCached;
 334
 335     CWalletTx()
 336     {
 337         Init(NULL);
 338     }
 339
 340     CWalletTx(const CWallet* pwalletIn)
 341     {
 342         Init(pwalletIn);
 343     }
 344
 345     CWalletTx(const CWallet* pwalletIn, const CMerkleTx& txIn) : CMerkleTx(txIn)
 346     {
 347         Init(pwalletIn);
 348     }
 349
 350     CWalletTx(const CWallet* pwalletIn, const CTransaction& txIn) : CMerkleTx(txIn)
 351     {
 352         Init(pwalletIn);
 353     }
 354
 355     void Init(const CWallet* pwalletIn)
 356     {
 357         pwallet = pwalletIn;
 358         vtxPrev.clear();
 359         mapValue.clear();
 360         vOrderForm.clear();
 361         fTimeReceivedIsTxTime = false;
 362         nTimeReceived = 0;
 363         fFromMe = false;
 364         strFromAccount.clear();
 365         vfSpent.clear();
 366         fDebitCached = false;
 367         fCreditCached = false;
 368         fAvailableCreditCached = false;
 369         fChangeCached = false;
 370         nDebitCached = 0;
 371         nCreditCached = 0;
 372         nAvailableCreditCached = 0;
 373         nChangeCached = 0;
 374     }
 375
 376     IMPLEMENT_SERIALIZE
 377     (
 378         CWalletTx* pthis = const_cast<CWalletTx*>(this);
 379         if (fRead)
 380             pthis->Init(NULL);
 381         char fSpent = false;
 382
 383         if (!fRead)
 384         {
 385             pthis->mapValue["fromaccount"] = pthis->strFromAccount;
 386
 387             std::string str;
 388             BOOST_FOREACH(char f, vfSpent)
 389             {
 390                 str += (f ? '1' : '0');
 391                 if (f)
 392                     fSpent = true;
 393             }
 394             pthis->mapValue["spent"] = str;
 395         }
 396
 397         nSerSize += SerReadWrite(s, *(CMerkleTx*)this, nType, nVersion,ser_action);
 398         READWRITE(vtxPrev);
 399         READWRITE(mapValue);
 400         READWRITE(vOrderForm);
 401         READWRITE(fTimeReceivedIsTxTime);
 402         READWRITE(nTimeReceived);
 403         READWRITE(fFromMe);
 404         READWRITE(fSpent);
 405
 406         if (fRead)
 407         {
 408             pthis->strFromAccount = pthis->mapValue["fromaccount"];
 409
 410             if (mapValue.count("spent"))
 411                 BOOST_FOREACH(char c, pthis->mapValue["spent"])
 412                     pthis->vfSpent.push_back(c != '0');
 413             else
 414                 pthis->vfSpent.assign(vout.size(), fSpent);
 415         }
 416
 417         pthis->mapValue.erase("fromaccount");
 418         pthis->mapValue.erase("version");
 419         pthis->mapValue.erase("spent");
 420     )
 421
 422     // marks certain txout's as spent
 423     // returns true if any update took place
 424     bool UpdateSpent(const std::vector<char>& vfNewSpent)
 425     {
 426         bool fReturn = false;
 427         for (unsigned int i = 0; i < vfNewSpent.size(); i++)
 428         {
 429             if (i == vfSpent.size())
 430                 break;
 431
 432             if (vfNewSpent[i] && !vfSpent[i])
 433             {
 434                 vfSpent[i] = true;
 435                 fReturn = true;
 436                 fAvailableCreditCached = false;
 437             }
 438         }
 439         return fReturn;
 440     }
 441
 442     // make sure balances are recalculated
 443     void MarkDirty()
 444     {
 445         fCreditCached = false;
 446         fAvailableCreditCached = false;
 447         fDebitCached = false;
 448         fChangeCached = false;
 449     }
 450
 451     void BindWallet(CWallet *pwalletIn)
 452     {
 453         pwallet = pwalletIn;
 454         MarkDirty();
 455     }
 456
 457     void MarkSpent(unsigned int nOut)
 458     {
 459         if (nOut >= vout.size())
 460             throw std::runtime_error("CWalletTx::MarkSpent() : nOut out of range");
 461         vfSpent.resize(vout.size());
 462         if (!vfSpent[nOut])
 463         {
 464             vfSpent[nOut] = true;
 465             fAvailableCreditCached = false;
 466         }
 467     }
 468
 469     bool IsSpent(unsigned int nOut) const
 470     {
 471         if (nOut >= vout.size())
 472             throw std::runtime_error("CWalletTx::IsSpent() : nOut out of range");
 473         if (nOut >= vfSpent.size())
 474             return false;
 475         return (!!vfSpent[nOut]);
 476     }
 477
 478     int64 GetDebit() const
 479     {
 480         if (vin.empty())
 481             return 0;
 482         if (fDebitCached)
 483             return nDebitCached;
 484         nDebitCached = pwallet->GetDebit(*this);
 485         fDebitCached = true;
 486         return nDebitCached;
 487     }
 488
 489     int64 GetCredit(bool fUseCache=true) const
 490     {
 491         // Must wait until coinbase is safely deep enough in the chain before valuing it
 492         if (IsCoinBase() && GetBlocksToMaturity() > 0)
 493             return 0;
 494
 495         // GetBalance can assume transactions in mapWallet won't change
 496         if (fUseCache && fCreditCached)
 497             return nCreditCached;
 498         nCreditCached = pwallet->GetCredit(*this);
 499         fCreditCached = true;
 500         return nCreditCached;
 501     }
 502
 503     int64 GetAvailableCredit(bool fUseCache=true) const
 504     {
 505         // Must wait until coinbase is safely deep enough in the chain before valuing it
 506         if (IsCoinBase() && GetBlocksToMaturity() > 0)
 507             return 0;
 508
 509         if (fUseCache && fAvailableCreditCached)
 510             return nAvailableCreditCached;
 511
 512         int64 nCredit = 0;
 513         for (unsigned int i = 0; i < vout.size(); i++)
 514         {
 515             if (!IsSpent(i))
 516             {
 517                 const CTxOut &txout = vout[i];
 518                 nCredit += pwallet->GetCredit(txout);
 519                 if (!MoneyRange(nCredit))
 520                     throw std::runtime_error("CWalletTx::GetAvailableCredit() : value out of range");
 521             }
 522         }
 523
 524         nAvailableCreditCached = nCredit;
 525         fAvailableCreditCached = true;
 526         return nCredit;
 527     }
 528
 529
 530     int64 GetChange() const
 531     {
 532         if (fChangeCached)
 533             return nChangeCached;
 534         nChangeCached = pwallet->GetChange(*this);
 535         fChangeCached = true;
 536         return nChangeCached;
 537     }
 538
 539     void GetAmounts(int64& nGeneratedImmature, int64& nGeneratedMature, std::list<std::pair<CTxDestination, int64> >& listReceived,
 540                     std::list<std::pair<CTxDestination, int64> >& listSent, int64& nFee, std::string& strSentAccount) const;
 541
 542     void GetAccountAmounts(const std::string& strAccount, int64& nGenerated, int64& nReceived,
 543                            int64& nSent, int64& nFee) const;
 544
 545     bool IsFromMe() const
 546     {
 547         return (GetDebit() > 0);
 548     }
 549
 550     bool IsConfirmed() const
 551     {
 552         // Quick answer in most cases
 553         if (!IsFinal())
 554             return false;
 555         if (GetDepthInMainChain() >= 1)
 556             return true;
 557         if (!IsFromMe()) // using wtx's cached debit
 558             return false;
 559
 560         // If no confirmations but it's from us, we can still
 561         // consider it confirmed if all dependencies are confirmed
 562         std::map<uint256, const CMerkleTx*> mapPrev;
 563         std::vector<const CMerkleTx*> vWorkQueue;
 564         vWorkQueue.reserve(vtxPrev.size()+1);
 565         vWorkQueue.push_back(this);
 566         for (unsigned int i = 0; i < vWorkQueue.size(); i++)
 567         {
 568             const CMerkleTx* ptx = vWorkQueue[i];
 569
 570             if (!ptx->IsFinal())
 571                 return false;
 572             if (ptx->GetDepthInMainChain() >= 1)
 573                 continue;
 574             if (!pwallet->IsFromMe(*ptx))
 575                 return false;
 576
 577             if (mapPrev.empty())
 578             {
 579                 BOOST_FOREACH(const CMerkleTx& tx, vtxPrev)
 580                     mapPrev[tx.GetHash()] = &tx;
 581             }
 582
 583             BOOST_FOREACH(const CTxIn& txin, ptx->vin)
 584             {
 585                 if (!mapPrev.count(txin.prevout.hash))
 586                     return false;
 587                 vWorkQueue.push_back(mapPrev[txin.prevout.hash]);
 588             }
 589         }
 590         return true;
 591     }
 592
 593     bool WriteToDisk();
 594
 595     int64 GetTxTime() const;
 596     int GetRequestCount() const;
 597
 598     void AddSupportingTransactions(CTxDB& txdb);
 599
 600     bool AcceptWalletTransaction(CTxDB& txdb, bool fCheckInputs=true);
 601     bool AcceptWalletTransaction();
 602
 603     void RelayWalletTransaction(CTxDB& txdb);
 604     void RelayWalletTransaction();
 605 };
 606
 607
 608
 609
 610 class COutput
 611 {
 612 public:
 613     const CWalletTx *tx;
 614     int i;
 615     int nDepth;
 616
 617     COutput(const CWalletTx *txIn, int iIn, int nDepthIn)
 618     {
 619         tx = txIn; i = iIn; nDepth = nDepthIn;
 620     }
 621
 622     std::string ToString() const
 623     {
 624         return strprintf("COutput(%s, %d, %d) [%s]", tx->GetHash().ToString().substr(0,10).c_str(), i, nDepth, FormatMoney(tx->vout[i].nValue).c_str());
 625     }
 626
 627     void print() const
 628     {
 629         printf("%s\n", ToString().c_str());
 630     }
 631 };
 632
 633
 634
 635
 636 /** Private key that includes an expiration date in case it never gets used. */
 637 class CWalletKey
 638 {
 639 public:
 640     CPrivKey vchPrivKey;
 641     int64 nTimeCreated;
 642     int64 nTimeExpires;
 643     std::string strComment;
 644     //// todo: add something to note what created it (user, getnewaddress, change)
 645     ////   maybe should have a map<string, string> property map
 646
 647     CWalletKey(int64 nExpires=0)
 648     {
 649         nTimeCreated = (nExpires ? GetTime() : 0);
 650         nTimeExpires = nExpires;
 651     }
 652
 653     IMPLEMENT_SERIALIZE
 654     (
 655         if (!(nType & SER_GETHASH))
 656             READWRITE(nVersion);
 657         READWRITE(vchPrivKey);
 658         READWRITE(nTimeCreated);
 659         READWRITE(nTimeExpires);
 660         READWRITE(strComment);
 661     )
 662 };
 663
 664
 665
 666
 667
 668
 669 /** Account information.
 670  * Stored in wallet with key "acc"+string account name.
 671  */
 672 class CAccount
 673 {
 674 public:
 675     CPubKey vchPubKey;
 676
 677     CAccount()
 678     {
 679         SetNull();
 680     }
 681
 682     void SetNull()
 683     {
 684         vchPubKey = CPubKey();
 685     }
 686
 687     IMPLEMENT_SERIALIZE
 688     (
 689         if (!(nType & SER_GETHASH))
 690             READWRITE(nVersion);
 691         READWRITE(vchPubKey);
 692     )
 693 };
 694
 695
 696
 697 /** Internal transfers.
 698  * Database key is acentry<account><counter>.
 699  */
 700 class CAccountingEntry
 701 {
 702 public:
 703     std::string strAccount;
 704     int64 nCreditDebit;
 705     int64 nTime;
 706     std::string strOtherAccount;
 707     std::string strComment;
 708
 709     CAccountingEntry()
 710     {
 711         SetNull();
 712     }
 713
 714     void SetNull()
 715     {
 716         nCreditDebit = 0;
 717         nTime = 0;
 718         strAccount.clear();
 719         strOtherAccount.clear();
 720         strComment.clear();
 721     }
 722
 723     IMPLEMENT_SERIALIZE
 724     (
 725         if (!(nType & SER_GETHASH))
 726             READWRITE(nVersion);
 727         // Note: strAccount is serialized as part of the key, not here.
 728         READWRITE(nCreditDebit);
 729         READWRITE(nTime);
 730         READWRITE(strOtherAccount);
 731         READWRITE(strComment);
 732     )
 733 };
 734
 735 bool GetWalletFile(CWallet* pwallet, std::string &strWalletFileOut);
 736
 737 #endif