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wallet.h
// Copyright (c) 2009-2010 Satoshi Nakamoto
// Copyright (c) 2009-2014 The Bitcoin developers
// Distributed under the MIT/X11 software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#ifndef BITCOIN_WALLET_H
#define BITCOIN_WALLET_H
#include <string>
#include <vector>
#include <stdlib.h>
#include "main.h"
#include "key.h"
#include "keystore.h"
#include "script.h"
#include "ui_interface.h"
#include "util.h"
#include "walletdb.h"
extern bool bSpendZeroConfChange;
class CAccountingEntry;
class CWalletTx;
class CReserveKey;
class COutput;
class CCoinControl;
/** (client) version numbers for particular wallet features */
enum WalletFeature
{
FEATURE_BASE = 10500, // the earliest version new wallets supports (only useful for getinfo's clientversion output)
FEATURE_WALLETCRYPT = 40000, // wallet encryption
FEATURE_COMPRPUBKEY = 60000, // compressed public keys
FEATURE_LATEST = 60000
};
/** A key pool entry */
class CKeyPool
{
public:
int64 nTime;
CPubKey vchPubKey;
CKeyPool()
{
nTime = GetTime();
}
CKeyPool(const CPubKey& vchPubKeyIn)
{
nTime = GetTime();
vchPubKey = vchPubKeyIn;
}
IMPLEMENT_SERIALIZE
(
if (!(nType & SER_GETHASH))
READWRITE(nVersion);
READWRITE(nTime);
READWRITE(vchPubKey);
)
};
/** A CWallet is an extension of a keystore, which also maintains a set of transactions and balances,
* and provides the ability to create new transactions.
*/
class CWallet : public CCryptoKeyStore
{
private:
bool SelectCoins(int64 nTargetValue, std::set<std::pair<const CWalletTx*,unsigned int> >& setCoinsRet, int64& nValueRet, const CCoinControl *coinControl=NULL) const;
CWalletDB *pwalletdbEncryption;
// the current wallet version: clients below this version are not able to load the wallet
int nWalletVersion;
// the maximum wallet format version: memory-only variable that specifies to what version this wallet may be upgraded
int nWalletMaxVersion;
public:
mutable CCriticalSection cs_wallet;
bool fFileBacked;
std::string strWalletFile;
std::set<int64> setKeyPool;
typedef std::map<unsigned int, CMasterKey> MasterKeyMap;
MasterKeyMap mapMasterKeys;
unsigned int nMasterKeyMaxID;
CWallet()
{
nWalletVersion = FEATURE_BASE;
nWalletMaxVersion = FEATURE_BASE;
fFileBacked = false;
nMasterKeyMaxID = 0;
pwalletdbEncryption = NULL;
nOrderPosNext = 0;
}
CWallet(std::string strWalletFileIn)
{
nWalletVersion = FEATURE_BASE;
nWalletMaxVersion = FEATURE_BASE;
strWalletFile = strWalletFileIn;
fFileBacked = true;
nMasterKeyMaxID = 0;
pwalletdbEncryption = NULL;
nOrderPosNext = 0;
}
std::map<uint256, CWalletTx> mapWallet;
int64 nOrderPosNext;
std::map<uint256, int> mapRequestCount;
std::map<CTxDestination, std::string> mapAddressBook;
CPubKey vchDefaultKey;
std::set<COutPoint> setLockedCoins;
// check whether we are allowed to upgrade (or already support) to the named feature
bool CanSupportFeature(enum WalletFeature wf) { return nWalletMaxVersion >= wf; }
void AvailableCoins(std::vector<COutput>& vCoins, bool fOnlyConfirmed=true, const CCoinControl *coinControl=NULL) const;
bool SelectCoinsMinConf(int64 nTargetValue, int nConfMine, int nConfTheirs, std::vector<COutput> vCoins, std::set<std::pair<const CWalletTx*,unsigned int> >& setCoinsRet, int64& nValueRet) const;
bool IsLockedCoin(uint256 hash, unsigned int n) const;
void LockCoin(COutPoint& output);
void UnlockCoin(COutPoint& output);
void UnlockAllCoins();
void ListLockedCoins(std::vector<COutPoint>& vOutpts);
// keystore implementation
// Generate a new key
CPubKey GenerateNewKey();
// Adds a key to the store, and saves it to disk.
bool AddKeyPubKey(const CKey& key, const CPubKey &pubkey);
// Adds a key to the store, without saving it to disk (used by LoadWallet)
bool LoadKey(const CKey& key, const CPubKey &pubkey) { return CCryptoKeyStore::AddKeyPubKey(key, pubkey); }
bool LoadMinVersion(int nVersion) { nWalletVersion = nVersion; nWalletMaxVersion = std::max(nWalletMaxVersion, nVersion); return true; }
// Adds an encrypted key to the store, and saves it to disk.
bool AddCryptedKey(const CPubKey &vchPubKey, const std::vector<unsigned char> &vchCryptedSecret);
// Adds an encrypted key to the store, without saving it to disk (used by LoadWallet)
bool LoadCryptedKey(const CPubKey &vchPubKey, const std::vector<unsigned char> &vchCryptedSecret);
bool AddCScript(const CScript& redeemScript);
bool LoadCScript(const CScript& redeemScript) { return CCryptoKeyStore::AddCScript(redeemScript); }
bool Unlock(const SecureString& strWalletPassphrase);
bool ChangeWalletPassphrase(const SecureString& strOldWalletPassphrase, const SecureString& strNewWalletPassphrase);
bool EncryptWallet(const SecureString& strWalletPassphrase);
/** Increment the next transaction order id
@return next transaction order id
*/
int64 IncOrderPosNext(CWalletDB *pwalletdb = NULL);
typedef std::pair<CWalletTx*, CAccountingEntry*> TxPair;
typedef std::multimap<int64, TxPair > TxItems;
/** Get the wallet's activity log
@return multimap of ordered transactions and accounting entries
@warning Returned pointers are *only* valid within the scope of passed acentries
*/
TxItems OrderedTxItems(std::list<CAccountingEntry>& acentries, std::string strAccount = "");
void MarkDirty();
bool AddToWallet(const CWalletTx& wtxIn);
bool AddToWalletIfInvolvingMe(const uint256 &hash, const CTransaction& tx, const CBlock* pblock, bool fUpdate = false, bool fFindBlock = false);
bool EraseFromWallet(uint256 hash);
void WalletUpdateSpent(const CTransaction& prevout);
int ScanForWalletTransactions(CBlockIndex* pindexStart, bool fUpdate = false);
void ReacceptWalletTransactions();
void ResendWalletTransactions();
int64 GetBalance() const;
int64 GetUnconfirmedBalance() const;
int64 GetImmatureBalance() const;
bool CreateTransaction(const std::vector<std::pair<CScript, int64> >& vecSend,
CWalletTx& wtxNew, CReserveKey& reservekey, int64& nFeeRet, std::string& strFailReason, const CCoinControl *coinControl=NULL);
bool CreateTransaction(CScript scriptPubKey, int64 nValue,
CWalletTx& wtxNew, CReserveKey& reservekey, int64& nFeeRet, std::string& strFailReason, const CCoinControl *coinControl=NULL);
bool CommitTransaction(CWalletTx& wtxNew, CReserveKey& reservekey);
std::string SendMoney(CScript scriptPubKey, int64 nValue, CWalletTx& wtxNew, bool fAskFee=false);
std::string SendMoneyToDestination(const CTxDestination &address, int64 nValue, CWalletTx& wtxNew, bool fAskFee=false);
bool NewKeyPool();
bool TopUpKeyPool();
int64 AddReserveKey(const CKeyPool& keypool);
void ReserveKeyFromKeyPool(int64& nIndex, CKeyPool& keypool);
void KeepKey(int64 nIndex);
void ReturnKey(int64 nIndex);
bool GetKeyFromPool(CPubKey &key, bool fAllowReuse=true);
int64 GetOldestKeyPoolTime();
void GetAllReserveKeys(std::set<CKeyID>& setAddress);
std::set< std::set<CTxDestination> > GetAddressGroupings();
std::map<CTxDestination, int64> GetAddressBalances();
bool IsMine(const CTxIn& txin) const;
int64 GetDebit(const CTxIn& txin) const;
bool IsMine(const CTxOut& txout) const
{
return ::IsMine(*this, txout.scriptPubKey);
}
int64 GetCredit(const CTxOut& txout) const
{
if (!MoneyRange(txout.nValue))
throw std::runtime_error("CWallet::GetCredit() : value out of range");
return (IsMine(txout) ? txout.nValue : 0);
}
bool IsChange(const CTxOut& txout) const;
int64 GetChange(const CTxOut& txout) const
{
if (!MoneyRange(txout.nValue))
throw std::runtime_error("CWallet::GetChange() : value out of range");
return (IsChange(txout) ? txout.nValue : 0);
}
bool IsMine(const CTransaction& tx) const
{
BOOST_FOREACH(const CTxOut& txout, tx.vout)
if (IsMine(txout) && txout.nValue >= nMinimumInputValue)
return true;
return false;
}
bool IsFromMe(const CTransaction& tx) const
{
return (GetDebit(tx) > 0);
}
int64 GetDebit(const CTransaction& tx) const
{
int64 nDebit = 0;
BOOST_FOREACH(const CTxIn& txin, tx.vin)
{
nDebit += GetDebit(txin);
if (!MoneyRange(nDebit))
throw std::runtime_error("CWallet::GetDebit() : value out of range");
}
return nDebit;
}
int64 GetCredit(const CTransaction& tx) const
{
int64 nCredit = 0;
BOOST_FOREACH(const CTxOut& txout, tx.vout)
{
nCredit += GetCredit(txout);
if (!MoneyRange(nCredit))
throw std::runtime_error("CWallet::GetCredit() : value out of range");
}
return nCredit;
}
int64 GetChange(const CTransaction& tx) const
{
int64 nChange = 0;
BOOST_FOREACH(const CTxOut& txout, tx.vout)
{
nChange += GetChange(txout);
if (!MoneyRange(nChange))
throw std::runtime_error("CWallet::GetChange() : value out of range");
}
return nChange;
}
void SetBestChain(const CBlockLocator& loc);
DBErrors LoadWallet(bool& fFirstRunRet);
bool SetAddressBookName(const CTxDestination& address, const std::string& strName);
bool DelAddressBookName(const CTxDestination& address);
void UpdatedTransaction(const uint256 &hashTx);
void PrintWallet(const CBlock& block);
void Inventory(const uint256 &hash)
{
{
LOCK(cs_wallet);
std::map<uint256, int>::iterator mi = mapRequestCount.find(hash);
if (mi != mapRequestCount.end())
(*mi).second++;
}
}
int GetKeyPoolSize()
{
return setKeyPool.size();
}
bool GetTransaction(const uint256 &hashTx, CWalletTx& wtx);
bool SetDefaultKey(const CPubKey &vchPubKey);
// signify that a particular wallet feature is now used. this may change nWalletVersion and nWalletMaxVersion if those are lower
bool SetMinVersion(enum WalletFeature, CWalletDB* pwalletdbIn = NULL, bool fExplicit = false);
// change which version we're allowed to upgrade to (note that this does not immediately imply upgrading to that format)
bool SetMaxVersion(int nVersion);
// get the current wallet format (the oldest client version guaranteed to understand this wallet)
int GetVersion() { return nWalletVersion; }
/** Address book entry changed.
* @note called with lock cs_wallet held.
*/
boost::signals2::signal<void (CWallet *wallet, const CTxDestination &address, const std::string &label, bool isMine, ChangeType status)> NotifyAddressBookChanged;
/** Wallet transaction added, removed or updated.
* @note called with lock cs_wallet held.
*/
boost::signals2::signal<void (CWallet *wallet, const uint256 &hashTx, ChangeType status)> NotifyTransactionChanged;
};
/** A key allocated from the key pool. */
class CReserveKey
{
protected:
CWallet* pwallet;
int64 nIndex;
CPubKey vchPubKey;
public:
CReserveKey(CWallet* pwalletIn)
{
nIndex = -1;
pwallet = pwalletIn;
}
~CReserveKey()
{
ReturnKey();
}
void ReturnKey();
bool GetReservedKey(CPubKey &pubkey);
void KeepKey();
};
typedef std::map<std::string, std::string> mapValue_t;
static void ReadOrderPos(int64& nOrderPos, mapValue_t& mapValue)
{
if (!mapValue.count("n"))
{
nOrderPos = -1; // TODO: calculate elsewhere
return;
}
nOrderPos = atoi64(mapValue["n"].c_str());
}
static void WriteOrderPos(const int64& nOrderPos, mapValue_t& mapValue)
{
if (nOrderPos == -1)
return;
mapValue["n"] = i64tostr(nOrderPos);
}
/** A transaction with a bunch of additional info that only the owner cares about.
* It includes any unrecorded transactions needed to link it back to the block chain.
*/
class CWalletTx : public CMerkleTx
{
private:
const CWallet* pwallet;
public:
std::vector<CMerkleTx> vtxPrev;
mapValue_t mapValue;
std::vector<std::pair<std::string, std::string> > vOrderForm;
unsigned int fTimeReceivedIsTxTime;
unsigned int nTimeReceived; // time received by this node
unsigned int nTimeSmart;
char fFromMe;
std::string strFromAccount;
std::vector<char> vfSpent; // which outputs are already spent
int64 nOrderPos; // position in ordered transaction list
// memory only
mutable bool fDebitCached;
mutable bool fCreditCached;
mutable bool fImmatureCreditCached;
mutable bool fAvailableCreditCached;
mutable bool fChangeCached;
mutable int64 nDebitCached;
mutable int64 nCreditCached;
mutable int64 nImmatureCreditCached;
mutable int64 nAvailableCreditCached;
mutable int64 nChangeCached;
CWalletTx()
{
Init(NULL);
}
CWalletTx(const CWallet* pwalletIn)
{
Init(pwalletIn);
}
CWalletTx(const CWallet* pwalletIn, const CMerkleTx& txIn) : CMerkleTx(txIn)
{
Init(pwalletIn);
}
CWalletTx(const CWallet* pwalletIn, const CTransaction& txIn) : CMerkleTx(txIn)
{
Init(pwalletIn);
}
void Init(const CWallet* pwalletIn)
{
pwallet = pwalletIn;
vtxPrev.clear();
mapValue.clear();
vOrderForm.clear();
fTimeReceivedIsTxTime = false;
nTimeReceived = 0;
nTimeSmart = 0;
fFromMe = false;
strFromAccount.clear();
vfSpent.clear();
fDebitCached = false;
fCreditCached = false;
fImmatureCreditCached = false;
fAvailableCreditCached = false;
fChangeCached = false;
nDebitCached = 0;
nCreditCached = 0;
nImmatureCreditCached = 0;
nAvailableCreditCached = 0;
nChangeCached = 0;
nOrderPos = -1;
}
IMPLEMENT_SERIALIZE
(
CWalletTx* pthis = const_cast<CWalletTx*>(this);
if (fRead)
pthis->Init(NULL);
char fSpent = false;
if (!fRead)
{
pthis->mapValue["fromaccount"] = pthis->strFromAccount;
std::string str;
BOOST_FOREACH(char f, vfSpent)
{
str += (f ? '1' : '0');
if (f)
fSpent = true;
}
pthis->mapValue["spent"] = str;
WriteOrderPos(pthis->nOrderPos, pthis->mapValue);
if (nTimeSmart)
pthis->mapValue["timesmart"] = strprintf("%u", nTimeSmart);
}
nSerSize += SerReadWrite(s, *(CMerkleTx*)this, nType, nVersion,ser_action);
READWRITE(vtxPrev);
READWRITE(mapValue);
READWRITE(vOrderForm);
READWRITE(fTimeReceivedIsTxTime);
READWRITE(nTimeReceived);
READWRITE(fFromMe);
READWRITE(fSpent);
if (fRead)
{
pthis->strFromAccount = pthis->mapValue["fromaccount"];
if (mapValue.count("spent"))
BOOST_FOREACH(char c, pthis->mapValue["spent"])
pthis->vfSpent.push_back(c != '0');
else
pthis->vfSpent.assign(vout.size(), fSpent);
ReadOrderPos(pthis->nOrderPos, pthis->mapValue);
pthis->nTimeSmart = mapValue.count("timesmart") ? (unsigned int)atoi64(pthis->mapValue["timesmart"]) : 0;
}
pthis->mapValue.erase("fromaccount");
pthis->mapValue.erase("version");
pthis->mapValue.erase("spent");
pthis->mapValue.erase("n");
pthis->mapValue.erase("timesmart");
)
// marks certain txout's as spent
// returns true if any update took place
bool UpdateSpent(const std::vector<char>& vfNewSpent)
{
bool fReturn = false;
for (unsigned int i = 0; i < vfNewSpent.size(); i++)
{
if (i == vfSpent.size())
break;
if (vfNewSpent[i] && !vfSpent[i])
{
vfSpent[i] = true;
fReturn = true;
fAvailableCreditCached = false;
}
}
return fReturn;
}
// make sure balances are recalculated
void MarkDirty()
{
fCreditCached = false;
fAvailableCreditCached = false;
fDebitCached = false;
fChangeCached = false;
}
void BindWallet(CWallet *pwalletIn)
{
pwallet = pwalletIn;
MarkDirty();
}
void MarkSpent(unsigned int nOut)
{
if (nOut >= vout.size())
throw std::runtime_error("CWalletTx::MarkSpent() : nOut out of range");
vfSpent.resize(vout.size());
if (!vfSpent[nOut])
{
vfSpent[nOut] = true;
fAvailableCreditCached = false;
}
}
bool IsSpent(unsigned int nOut) const
{
if (nOut >= vout.size())
throw std::runtime_error("CWalletTx::IsSpent() : nOut out of range");
if (nOut >= vfSpent.size())
return false;
return (!!vfSpent[nOut]);
}
int64 GetDebit() const
{
if (vin.empty())
return 0;
if (fDebitCached)
return nDebitCached;
nDebitCached = pwallet->GetDebit(*this);
fDebitCached = true;
return nDebitCached;
}
int64 GetCredit(bool fUseCache=true) const
{
// Must wait until coinbase is safely deep enough in the chain before valuing it
if (IsCoinBase() && GetBlocksToMaturity() > 0)
return 0;
// GetBalance can assume transactions in mapWallet won't change
if (fUseCache && fCreditCached)
return nCreditCached;
nCreditCached = pwallet->GetCredit(*this);
fCreditCached = true;
return nCreditCached;
}
int64 GetImmatureCredit(bool fUseCache=true) const
{
if (IsCoinBase() && GetBlocksToMaturity() > 0 && IsInMainChain())
{
if (fUseCache && fImmatureCreditCached)
return nImmatureCreditCached;
nImmatureCreditCached = pwallet->GetCredit(*this);
fImmatureCreditCached = true;
return nImmatureCreditCached;
}
return 0;
}
int64 GetAvailableCredit(bool fUseCache=true) const
{
// Must wait until coinbase is safely deep enough in the chain before valuing it
if (IsCoinBase() && GetBlocksToMaturity() > 0)
return 0;
if (fUseCache && fAvailableCreditCached)
return nAvailableCreditCached;
int64 nCredit = 0;
for (unsigned int i = 0; i < vout.size(); i++)
{
if (!IsSpent(i))
{
const CTxOut &txout = vout[i];
nCredit += pwallet->GetCredit(txout);
if (!MoneyRange(nCredit))
throw std::runtime_error("CWalletTx::GetAvailableCredit() : value out of range");
}
}
nAvailableCreditCached = nCredit;
fAvailableCreditCached = true;
return nCredit;
}
int64 GetChange() const
{
if (fChangeCached)
return nChangeCached;
nChangeCached = pwallet->GetChange(*this);
fChangeCached = true;
return nChangeCached;
}
void GetAmounts(std::list<std::pair<CTxDestination, int64> >& listReceived,
std::list<std::pair<CTxDestination, int64> >& listSent, int64& nFee, std::string& strSentAccount) const;
void GetAccountAmounts(const std::string& strAccount, int64& nReceived,
int64& nSent, int64& nFee) const;
bool IsFromMe() const
{
return (GetDebit() > 0);
}
bool IsConfirmed() const
{
// Quick answer in most cases
if (!IsFinal())
return false;
int nDepth = GetDepthInMainChain();
if (nDepth >= 1)
return true;
if (nDepth < 0)
return false;
if (!bSpendZeroConfChange || !IsFromMe()) // using wtx's cached debit
return false;
// If no confirmations but it's from us, we can still
// consider it confirmed if all dependencies are confirmed
std::map<uint256, const CMerkleTx*> mapPrev;
std::vector<const CMerkleTx*> vWorkQueue;
vWorkQueue.reserve(vtxPrev.size()+1);
vWorkQueue.push_back(this);
for (unsigned int i = 0; i < vWorkQueue.size(); i++)
{
const CMerkleTx* ptx = vWorkQueue[i];
if (!ptx->IsFinal())
return false;
int nPDepth = ptx->GetDepthInMainChain();
if (nPDepth >= 1)
continue;
if (nPDepth < 0)
return false;
if (!pwallet->IsFromMe(*ptx))
return false;
if (mapPrev.empty())
{
BOOST_FOREACH(const CMerkleTx& tx, vtxPrev)
mapPrev[tx.GetHash()] = &tx;
}
BOOST_FOREACH(const CTxIn& txin, ptx->vin)
{
if (!mapPrev.count(txin.prevout.hash))
return false;
vWorkQueue.push_back(mapPrev[txin.prevout.hash]);
}
}
return true;
}
bool WriteToDisk();
int64 GetTxTime() const;
int GetRequestCount() const;
void AddSupportingTransactions();
bool AcceptWalletTransaction(bool fCheckInputs=true);
void RelayWalletTransaction();
};
class COutput
{
public:
const CWalletTx *tx;
int i;
int nDepth;
COutput(const CWalletTx *txIn, int iIn, int nDepthIn)
{
tx = txIn; i = iIn; nDepth = nDepthIn;
}
std::string ToString() const
{
return strprintf("COutput(%s, %d, %d) [%s]", tx->GetHash().ToString().c_str(), i, nDepth, FormatMoney(tx->vout[i].nValue).c_str());
}
void print() const
{
printf("%s\n", ToString().c_str());
}
};
/** Private key that includes an expiration date in case it never gets used. */
class CWalletKey
{
public:
CPrivKey vchPrivKey;
int64 nTimeCreated;
int64 nTimeExpires;
std::string strComment;
//// todo: add something to note what created it (user, getnewaddress, change)
//// maybe should have a map<string, string> property map
CWalletKey(int64 nExpires=0)
{
nTimeCreated = (nExpires ? GetTime() : 0);
nTimeExpires = nExpires;
}
IMPLEMENT_SERIALIZE
(
if (!(nType & SER_GETHASH))
READWRITE(nVersion);
READWRITE(vchPrivKey);
READWRITE(nTimeCreated);
READWRITE(nTimeExpires);
READWRITE(strComment);
)
};
/** Account information.
* Stored in wallet with key "acc"+string account name.
*/
class CAccount
{
public:
CPubKey vchPubKey;
CAccount()
{
SetNull();
}
void SetNull()
{
vchPubKey = CPubKey();
}
IMPLEMENT_SERIALIZE
(
if (!(nType & SER_GETHASH))
READWRITE(nVersion);
READWRITE(vchPubKey);
)
};
/** Internal transfers.
* Database key is acentry<account><counter>.
*/
class CAccountingEntry
{
public:
std::string strAccount;
int64 nCreditDebit;
int64 nTime;
std::string strOtherAccount;
std::string strComment;
mapValue_t mapValue;
int64 nOrderPos; // position in ordered transaction list
uint64 nEntryNo;
CAccountingEntry()
{
SetNull();
}
void SetNull()
{
nCreditDebit = 0;
nTime = 0;
strAccount.clear();
strOtherAccount.clear();
strComment.clear();
nOrderPos = -1;
}
IMPLEMENT_SERIALIZE
(
CAccountingEntry& me = *const_cast<CAccountingEntry*>(this);
if (!(nType & SER_GETHASH))
READWRITE(nVersion);
// Note: strAccount is serialized as part of the key, not here.
READWRITE(nCreditDebit);
READWRITE(nTime);
READWRITE(strOtherAccount);
if (!fRead)
{
WriteOrderPos(nOrderPos, me.mapValue);
if (!(mapValue.empty() && _ssExtra.empty()))
{
CDataStream ss(nType, nVersion);
ss.insert(ss.begin(), '\0');
ss << mapValue;
ss.insert(ss.end(), _ssExtra.begin(), _ssExtra.end());
me.strComment.append(ss.str());
}
}
READWRITE(strComment);
size_t nSepPos = strComment.find("\0", 0, 1);
if (fRead)
{
me.mapValue.clear();
if (std::string::npos != nSepPos)
{
CDataStream ss(std::vector<char>(strComment.begin() + nSepPos + 1, strComment.end()), nType, nVersion);
ss >> me.mapValue;
me._ssExtra = std::vector<char>(ss.begin(), ss.end());
}
ReadOrderPos(me.nOrderPos, me.mapValue);
}
if (std::string::npos != nSepPos)
me.strComment.erase(nSepPos);
me.mapValue.erase("n");
)
private:
std::vector<char> _ssExtra;
};
bool GetWalletFile(CWallet* pwallet, std::string &strWalletFileOut);
#endif
Raw
walletdb.cpp
// Copyright (c) 2009-2010 Satoshi Nakamoto
// Copyright (c) 2009-2012 The Bitcoin developers
// Distributed under the MIT/X11 software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#include "walletdb.h"
#include "wallet.h"
#include <boost/version.hpp>
#include <boost/filesystem.hpp>
using namespace std;
using namespace boost;
static uint64 nAccountingEntryNumber = 0;
//
// CWalletDB
//
bool CWalletDB::WriteName(const string& strAddress, const string& strName)
{
nWalletDBUpdated++;
return Write(make_pair(string("name"), strAddress), strName);
}
bool CWalletDB::EraseName(const string& strAddress)
{
// This should only be used for sending addresses, never for receiving addresses,
// receiving addresses must always have an address book entry if they're not change return.
nWalletDBUpdated++;
return Erase(make_pair(string("name"), strAddress));
}
bool CWalletDB::ReadAccount(const string& strAccount, CAccount& account)
{
account.SetNull();
return Read(make_pair(string("acc"), strAccount), account);
}
bool CWalletDB::WriteAccount(const string& strAccount, const CAccount& account)
{
return Write(make_pair(string("acc"), strAccount), account);
}
bool CWalletDB::WriteAccountingEntry(const uint64 nAccEntryNum, const CAccountingEntry& acentry)
{
return Write(boost::make_tuple(string("acentry"), acentry.strAccount, nAccEntryNum), acentry);
}
bool CWalletDB::WriteAccountingEntry(const CAccountingEntry& acentry)
{
return WriteAccountingEntry(++nAccountingEntryNumber, acentry);
}
int64 CWalletDB::GetAccountCreditDebit(const string& strAccount)
{
list<CAccountingEntry> entries;
ListAccountCreditDebit(strAccount, entries);
int64 nCreditDebit = 0;
BOOST_FOREACH (const CAccountingEntry& entry, entries)
nCreditDebit += entry.nCreditDebit;
return nCreditDebit;
}
void CWalletDB::ListAccountCreditDebit(const string& strAccount, list<CAccountingEntry>& entries)
{
bool fAllAccounts = (strAccount == "*");
Dbc* pcursor = GetCursor();
if (!pcursor)
throw runtime_error("CWalletDB::ListAccountCreditDebit() : cannot create DB cursor");
unsigned int fFlags = DB_SET_RANGE;
loop
{
// Read next record
CDataStream ssKey(SER_DISK, CLIENT_VERSION);
if (fFlags == DB_SET_RANGE)
ssKey << boost::make_tuple(string("acentry"), (fAllAccounts? string("") : strAccount), uint64(0));
CDataStream ssValue(SER_DISK, CLIENT_VERSION);
int ret = ReadAtCursor(pcursor, ssKey, ssValue, fFlags);
fFlags = DB_NEXT;
if (ret == DB_NOTFOUND)
break;
else if (ret != 0)
{
pcursor->close();
throw runtime_error("CWalletDB::ListAccountCreditDebit() : error scanning DB");
}
// Unserialize
string strType;
ssKey >> strType;
if (strType != "acentry")
break;
CAccountingEntry acentry;
ssKey >> acentry.strAccount;
if (!fAllAccounts && acentry.strAccount != strAccount)
break;
ssValue >> acentry;
ssKey >> acentry.nEntryNo;
entries.push_back(acentry);
}
pcursor->close();
}
DBErrors
CWalletDB::ReorderTransactions(CWallet* pwallet)
{
LOCK(pwallet->cs_wallet);
// Old wallets didn't have any defined order for transactions
// Probably a bad idea to change the output of this
// First: get all CWalletTx and CAccountingEntry into a sorted-by-time multimap.
typedef pair<CWalletTx*, CAccountingEntry*> TxPair;
typedef multimap<int64, TxPair > TxItems;
TxItems txByTime;
for (map<uint256, CWalletTx>::iterator it = pwallet->mapWallet.begin(); it != pwallet->mapWallet.end(); ++it)
{
CWalletTx* wtx = &((*it).second);
txByTime.insert(make_pair(wtx->nTimeReceived, TxPair(wtx, (CAccountingEntry*)0)));
}
list<CAccountingEntry> acentries;
ListAccountCreditDebit("", acentries);
BOOST_FOREACH(CAccountingEntry& entry, acentries)
{
txByTime.insert(make_pair(entry.nTime, TxPair((CWalletTx*)0, &entry)));
}
int64& nOrderPosNext = pwallet->nOrderPosNext;
nOrderPosNext = 0;
std::vector<int64> nOrderPosOffsets;
for (TxItems::iterator it = txByTime.begin(); it != txByTime.end(); ++it)
{
CWalletTx *const pwtx = (*it).second.first;
CAccountingEntry *const pacentry = (*it).second.second;
int64& nOrderPos = (pwtx != 0) ? pwtx->nOrderPos : pacentry->nOrderPos;
if (nOrderPos == -1)
{
nOrderPos = nOrderPosNext++;
nOrderPosOffsets.push_back(nOrderPos);
if (pacentry)
// Have to write accounting regardless, since we don't keep it in memory
if (!WriteAccountingEntry(pacentry->nEntryNo, *pacentry))
return DB_LOAD_FAIL;
}
else
{
int64 nOrderPosOff = 0;
BOOST_FOREACH(const int64& nOffsetStart, nOrderPosOffsets)
{
if (nOrderPos >= nOffsetStart)
++nOrderPosOff;
}
nOrderPos += nOrderPosOff;
nOrderPosNext = std::max(nOrderPosNext, nOrderPos + 1);
if (!nOrderPosOff)
continue;
// Since we're changing the order, write it back
if (pwtx)
{
if (!WriteTx(pwtx->GetHash(), *pwtx))
return DB_LOAD_FAIL;
}
else
if (!WriteAccountingEntry(pacentry->nEntryNo, *pacentry))
return DB_LOAD_FAIL;
}
}
return DB_LOAD_OK;
}
bool
ReadKeyValue(CWallet* pwallet, CDataStream& ssKey, CDataStream& ssValue,
int& nFileVersion, vector<uint256>& vWalletUpgrade,
bool& fIsEncrypted, bool& fAnyUnordered, string& strType, string& strErr)
{
try {
// Unserialize
// Taking advantage of the fact that pair serialization
// is just the two items serialized one after the other
ssKey >> strType;
if (strType == "name")
{
string strAddress;
ssKey >> strAddress;
ssValue >> pwallet->mapAddressBook[CBitcoinAddress(strAddress).Get()];
}
else if (strType == "tx")
{
uint256 hash;
ssKey >> hash;
CWalletTx wtx;
ssValue >> wtx;
CValidationState state;
if (wtx.CheckTransaction(state) && (wtx.GetHash() == hash) && state.IsValid())
wtx.BindWallet(pwallet);
else
return false;
// Undo serialize changes in 31600
if (31404 <= wtx.fTimeReceivedIsTxTime && wtx.fTimeReceivedIsTxTime <= 31703)
{
if (!ssValue.empty())
{
char fTmp;
char fUnused;
ssValue >> fTmp >> fUnused >> wtx.strFromAccount;
strErr = strprintf("LoadWallet() upgrading tx ver=%d %d '%s' %s",
wtx.fTimeReceivedIsTxTime, fTmp, wtx.strFromAccount.c_str(), hash.ToString().c_str());
wtx.fTimeReceivedIsTxTime = fTmp;
}
else
{
strErr = strprintf("LoadWallet() repairing tx ver=%d %s", wtx.fTimeReceivedIsTxTime, hash.ToString().c_str());
wtx.fTimeReceivedIsTxTime = 0;
}
vWalletUpgrade.push_back(hash);
}
if (wtx.nOrderPos == -1)
fAnyUnordered = true;
pwallet->mapWallet[hash] = wtx;
//// debug print
//printf("LoadWallet %s\n", wtx.GetHash().ToString().c_str());
//printf(" %12"PRI64d" %s %s %s\n",
// wtx.vout[0].nValue,
// DateTimeStrFormat("%Y-%m-%d %H:%M:%S", wtx.GetBlockTime()).c_str(),
// wtx.hashBlock.ToString().c_str(),
// wtx.mapValue["message"].c_str());
}
else if (strType == "acentry")
{
string strAccount;
ssKey >> strAccount;
uint64 nNumber;
ssKey >> nNumber;
if (nNumber > nAccountingEntryNumber)
nAccountingEntryNumber = nNumber;
if (!fAnyUnordered)
{
CAccountingEntry acentry;
ssValue >> acentry;
if (acentry.nOrderPos == -1)
fAnyUnordered = true;
}
}
else if (strType == "key" || strType == "wkey")
{
CPubKey vchPubKey;
ssKey >> vchPubKey;
if (!vchPubKey.IsValid())
{
strErr = "Error reading wallet database: CPubKey corrupt";
return false;
}
CKey key;
CPrivKey pkey;
if (strType == "key")
ssValue >> pkey;
else {
CWalletKey wkey;
ssValue >> wkey;
pkey = wkey.vchPrivKey;
}
if (!key.SetPrivKey(pkey, vchPubKey.IsCompressed()))
{
strErr = "Error reading wallet database: CPrivKey corrupt";
return false;
}
if (key.GetPubKey() != vchPubKey)
{
strErr = "Error reading wallet database: CPrivKey pubkey inconsistency";
return false;
}
if (!pwallet->LoadKey(key, vchPubKey))
{
strErr = "Error reading wallet database: LoadKey failed";
return false;
}
}
else if (strType == "mkey")
{
unsigned int nID;
ssKey >> nID;
CMasterKey kMasterKey;
ssValue >> kMasterKey;
if(pwallet->mapMasterKeys.count(nID) != 0)
{
strErr = strprintf("Error reading wallet database: duplicate CMasterKey id %u", nID);
return false;
}
pwallet->mapMasterKeys[nID] = kMasterKey;
if (pwallet->nMasterKeyMaxID < nID)
pwallet->nMasterKeyMaxID = nID;
}
else if (strType == "ckey")
{
vector<unsigned char> vchPubKey;
ssKey >> vchPubKey;
vector<unsigned char> vchPrivKey;
ssValue >> vchPrivKey;
if (!pwallet->LoadCryptedKey(vchPubKey, vchPrivKey))
{
strErr = "Error reading wallet database: LoadCryptedKey failed";
return false;
}
fIsEncrypted = true;
}
else if (strType == "defaultkey")
{
ssValue >> pwallet->vchDefaultKey;
}
else if (strType == "pool")
{
int64 nIndex;
ssKey >> nIndex;
pwallet->setKeyPool.insert(nIndex);
}
else if (strType == "version")
{
ssValue >> nFileVersion;
if (nFileVersion == 10300)
nFileVersion = 300;
}
else if (strType == "cscript")
{
uint160 hash;
ssKey >> hash;
CScript script;
ssValue >> script;
if (!pwallet->LoadCScript(script))
{
strErr = "Error reading wallet database: LoadCScript failed";
return false;
}
}
else if (strType == "orderposnext")
{
ssValue >> pwallet->nOrderPosNext;
}
} catch (...)
{
return false;
}
return true;
}
static bool IsKeyType(string strType)
{
return (strType== "key" || strType == "wkey" ||
strType == "mkey" || strType == "ckey");
}
DBErrors CWalletDB::LoadWallet(CWallet* pwallet)
{
pwallet->vchDefaultKey = CPubKey();
int nFileVersion = 0;
vector<uint256> vWalletUpgrade;
bool fIsEncrypted = false;
bool fAnyUnordered = false;
bool fNoncriticalErrors = false;
DBErrors result = DB_LOAD_OK;
try {
LOCK(pwallet->cs_wallet);
int nMinVersion = 0;
if (Read((string)"minversion", nMinVersion))
{
if (nMinVersion > CLIENT_VERSION)
return DB_TOO_NEW;
pwallet->LoadMinVersion(nMinVersion);
}
// Get cursor
Dbc* pcursor = GetCursor();
if (!pcursor)
{
printf("Error getting wallet database cursor\n");
return DB_CORRUPT;
}
loop
{
// Read next record
CDataStream ssKey(SER_DISK, CLIENT_VERSION);
CDataStream ssValue(SER_DISK, CLIENT_VERSION);
int ret = ReadAtCursor(pcursor, ssKey, ssValue);
if (ret == DB_NOTFOUND)
break;
else if (ret != 0)
{
printf("Error reading next record from wallet database\n");
return DB_CORRUPT;
}
// Try to be tolerant of single corrupt records:
string strType, strErr;
if (!ReadKeyValue(pwallet, ssKey, ssValue, nFileVersion,
vWalletUpgrade, fIsEncrypted, fAnyUnordered, strType, strErr))
{
// losing keys is considered a catastrophic error, anything else
// we assume the user can live with:
if (IsKeyType(strType))
result = DB_CORRUPT;
else
{
// Leave other errors alone, if we try to fix them we might make things worse.
fNoncriticalErrors = true; // ... but do warn the user there is something wrong.
if (strType == "tx")
// Rescan if there is a bad transaction record:
SoftSetBoolArg("-rescan", true);
}
}
if (!strErr.empty())
printf("%s\n", strErr.c_str());
}
pcursor->close();
}
catch (boost::thread_interrupted) {
throw;
}
catch (...) {
result = DB_CORRUPT;
}
if (fNoncriticalErrors && result == DB_LOAD_OK)
result = DB_NONCRITICAL_ERROR;
// Any wallet corruption at all: skip any rewriting or
// upgrading, we don't want to make it worse.
if (result != DB_LOAD_OK)
return result;
printf("nFileVersion = %d\n", nFileVersion);
BOOST_FOREACH(uint256 hash, vWalletUpgrade)
WriteTx(hash, pwallet->mapWallet[hash]);
// Rewrite encrypted wallets of versions 0.4.0 and 0.5.0rc:
if (fIsEncrypted && (nFileVersion == 40000 || nFileVersion == 50000))
return DB_NEED_REWRITE;
if (nFileVersion < CLIENT_VERSION) // Update
WriteVersion(CLIENT_VERSION);
if (fAnyUnordered)
result = ReorderTransactions(pwallet);
return result;
}
void ThreadFlushWalletDB(const string& strFile)
{
// Make this thread recognisable as the wallet flushing thread
RenameThread("bitcoin-wallet");
static bool fOneThread;
if (fOneThread)
return;
fOneThread = true;
if (!GetBoolArg("-flushwallet", true))
return;
unsigned int nLastSeen = nWalletDBUpdated;
unsigned int nLastFlushed = nWalletDBUpdated;
int64 nLastWalletUpdate = GetTime();
while (true)
{
MilliSleep(500);
if (nLastSeen != nWalletDBUpdated)
{
nLastSeen = nWalletDBUpdated;
nLastWalletUpdate = GetTime();
}
if (nLastFlushed != nWalletDBUpdated && GetTime() - nLastWalletUpdate >= 2)
{
TRY_LOCK(bitdb.cs_db,lockDb);
if (lockDb)
{
// Don't do this if any databases are in use
int nRefCount = 0;
map<string, int>::iterator mi = bitdb.mapFileUseCount.begin();
while (mi != bitdb.mapFileUseCount.end())
{
nRefCount += (*mi).second;
mi++;
}
if (nRefCount == 0)
{
boost::this_thread::interruption_point();
map<string, int>::iterator mi = bitdb.mapFileUseCount.find(strFile);
if (mi != bitdb.mapFileUseCount.end())
{
printf("Flushing wallet.dat\n");
nLastFlushed = nWalletDBUpdated;
int64 nStart = GetTimeMillis();
// Flush wallet.dat so it's self contained
bitdb.CloseDb(strFile);
bitdb.CheckpointLSN(strFile);
bitdb.mapFileUseCount.erase(mi++);
printf("Flushed wallet.dat %"PRI64d"ms\n", GetTimeMillis() - nStart);
}
}
}
}
}
}
bool BackupWallet(const CWallet& wallet, const string& strDest)
{
if (!wallet.fFileBacked)
return false;
while (true)
{
{
LOCK(bitdb.cs_db);
if (!bitdb.mapFileUseCount.count(wallet.strWalletFile) || bitdb.mapFileUseCount[wallet.strWalletFile] == 0)
{
// Flush log data to the dat file
bitdb.CloseDb(wallet.strWalletFile);
bitdb.CheckpointLSN(wallet.strWalletFile);
bitdb.mapFileUseCount.erase(wallet.strWalletFile);
// Copy wallet.dat
filesystem::path pathSrc = GetDataDir() / wallet.strWalletFile;
filesystem::path pathDest(strDest);
if (filesystem::is_directory(pathDest))
pathDest /= wallet.strWalletFile;
try {
#if BOOST_VERSION >= 104000
filesystem::copy_file(pathSrc, pathDest, filesystem::copy_option::overwrite_if_exists);
#else
filesystem::copy_file(pathSrc, pathDest);
#endif
printf("copied wallet.dat to %s\n", pathDest.string().c_str());
return true;
} catch(const filesystem::filesystem_error &e) {
printf("error copying wallet.dat to %s - %s\n", pathDest.string().c_str(), e.what());
return false;
}
}
}
MilliSleep(100);
}
return false;
}
//
// Try to (very carefully!) recover wallet.dat if there is a problem.
//
bool CWalletDB::Recover(CDBEnv& dbenv, std::string filename, bool fOnlyKeys)
{
// Recovery procedure:
// move wallet.dat to wallet.timestamp.bak
// Call Salvage with fAggressive=true to
// get as much data as possible.
// Rewrite salvaged data to wallet.dat
// Set -rescan so any missing transactions will be
// found.
int64 now = GetTime();
std::string newFilename = strprintf("wallet.%"PRI64d".bak", now);
int result = dbenv.dbenv.dbrename(NULL, filename.c_str(), NULL,
newFilename.c_str(), DB_AUTO_COMMIT);
if (result == 0)
printf("Renamed %s to %s\n", filename.c_str(), newFilename.c_str());
else
{
printf("Failed to rename %s to %s\n", filename.c_str(), newFilename.c_str());
return false;
}
std::vector<CDBEnv::KeyValPair> salvagedData;
bool allOK = dbenv.Salvage(newFilename, true, salvagedData);
if (salvagedData.empty())
{
printf("Salvage(aggressive) found no records in %s.\n", newFilename.c_str());
return false;
}
printf("Salvage(aggressive) found %"PRIszu" records\n", salvagedData.size());
bool fSuccess = allOK;
Db* pdbCopy = new Db(&dbenv.dbenv, 0);
int ret = pdbCopy->open(NULL, // Txn pointer
filename.c_str(), // Filename
"main", // Logical db name
DB_BTREE, // Database type
DB_CREATE, // Flags
0);
if (ret > 0)
{
printf("Cannot create database file %s\n", filename.c_str());
return false;
}
CWallet dummyWallet;
int nFileVersion = 0;
vector<uint256> vWalletUpgrade;
bool fIsEncrypted = false;
bool fAnyUnordered = false;
DbTxn* ptxn = dbenv.TxnBegin();
BOOST_FOREACH(CDBEnv::KeyValPair& row, salvagedData)
{
if (fOnlyKeys)
{
CDataStream ssKey(row.first, SER_DISK, CLIENT_VERSION);
CDataStream ssValue(row.second, SER_DISK, CLIENT_VERSION);
string strType, strErr;
bool fReadOK = ReadKeyValue(&dummyWallet, ssKey, ssValue,
nFileVersion, vWalletUpgrade,
fIsEncrypted, fAnyUnordered,
strType, strErr);
if (!IsKeyType(strType))
continue;
if (!fReadOK)
{
printf("WARNING: CWalletDB::Recover skipping %s: %s\n", strType.c_str(), strErr.c_str());
continue;
}
}
Dbt datKey(&row.first[0], row.first.size());
Dbt datValue(&row.second[0], row.second.size());
int ret2 = pdbCopy->put(ptxn, &datKey, &datValue, DB_NOOVERWRITE);
if (ret2 > 0)
fSuccess = false;
}
ptxn->commit(0);
pdbCopy->close(0);
delete pdbCopy;
return fSuccess;
}
bool CWalletDB::Recover(CDBEnv& dbenv, std::string filename)
{
return CWalletDB::Recover(dbenv, filename, false);
}
Raw
walletdb.h
// Copyright (c) 2009-2010 Satoshi Nakamoto
// Copyright (c) 2009-2012 The Bitcoin developers
// Distributed under the MIT/X11 software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#ifndef BITCOIN_WALLETDB_H
#define BITCOIN_WALLETDB_H
#include "db.h"
#include "base58.h"
class CKeyPool;
class CAccount;
class CAccountingEntry;
/** Error statuses for the wallet database */
enum DBErrors
{
DB_LOAD_OK,
DB_CORRUPT,
DB_NONCRITICAL_ERROR,
DB_TOO_NEW,
DB_LOAD_FAIL,
DB_NEED_REWRITE
};
/** Access to the wallet database (wallet.dat) */
class CWalletDB : public CDB
{
public:
CWalletDB(std::string strFilename, const char* pszMode="r+") : CDB(strFilename.c_str(), pszMode)
{
}
private:
CWalletDB(const CWalletDB&);
void operator=(const CWalletDB&);
public:
bool WriteName(const std::string& strAddress, const std::string& strName);
bool EraseName(const std::string& strAddress);
bool WriteTx(uint256 hash, const CWalletTx& wtx)
{
nWalletDBUpdated++;
return Write(std::make_pair(std::string("tx"), hash), wtx);
}
bool EraseTx(uint256 hash)
{
nWalletDBUpdated++;
return Erase(std::make_pair(std::string("tx"), hash));
}
bool WriteKey(const CPubKey& vchPubKey, const CPrivKey& vchPrivKey)
{
nWalletDBUpdated++;
return Write(std::make_pair(std::string("key"), vchPubKey), vchPrivKey, false);
}
bool WriteCryptedKey(const CPubKey& vchPubKey, const std::vector<unsigned char>& vchCryptedSecret, bool fEraseUnencryptedKey = true)
{
nWalletDBUpdated++;
if (!Write(std::make_pair(std::string("ckey"), vchPubKey), vchCryptedSecret, false))
return false;
if (fEraseUnencryptedKey)
{
Erase(std::make_pair(std::string("key"), vchPubKey));
Erase(std::make_pair(std::string("wkey"), vchPubKey));
}
return true;
}
bool WriteMasterKey(unsigned int nID, const CMasterKey& kMasterKey)
{
nWalletDBUpdated++;
return Write(std::make_pair(std::string("mkey"), nID), kMasterKey, true);
}
bool WriteCScript(const uint160& hash, const CScript& redeemScript)
{
nWalletDBUpdated++;
return Write(std::make_pair(std::string("cscript"), hash), redeemScript, false);
}
bool WriteBestBlock(const CBlockLocator& locator)
{
nWalletDBUpdated++;
return Write(std::string("bestblock"), locator);
}
bool ReadBestBlock(CBlockLocator& locator)
{
return Read(std::string("bestblock"), locator);
}
bool WriteOrderPosNext(int64 nOrderPosNext)
{
nWalletDBUpdated++;
return Write(std::string("orderposnext"), nOrderPosNext);
}
bool WriteDefaultKey(const CPubKey& vchPubKey)
{
nWalletDBUpdated++;
return Write(std::string("defaultkey"), vchPubKey);
}
bool ReadPool(int64 nPool, CKeyPool& keypool)
{
return Read(std::make_pair(std::string("pool"), nPool), keypool);
}
bool WritePool(int64 nPool, const CKeyPool& keypool)
{
nWalletDBUpdated++;
return Write(std::make_pair(std::string("pool"), nPool), keypool);
}
bool ErasePool(int64 nPool)
{
nWalletDBUpdated++;
return Erase(std::make_pair(std::string("pool"), nPool));
}
// Settings are no longer stored in wallet.dat; these are
// used only for backwards compatibility:
template<typename T>
bool ReadSetting(const std::string& strKey, T& value)
{
return Read(std::make_pair(std::string("setting"), strKey), value);
}
template<typename T>
bool WriteSetting(const std::string& strKey, const T& value)
{
nWalletDBUpdated++;
return Write(std::make_pair(std::string("setting"), strKey), value);
}
bool EraseSetting(const std::string& strKey)
{
nWalletDBUpdated++;
return Erase(std::make_pair(std::string("setting"), strKey));
}
bool WriteMinVersion(int nVersion)
{
return Write(std::string("minversion"), nVersion);
}
bool ReadAccount(const std::string& strAccount, CAccount& account);
bool WriteAccount(const std::string& strAccount, const CAccount& account);
private:
bool WriteAccountingEntry(const uint64 nAccEntryNum, const CAccountingEntry& acentry);
public:
bool WriteAccountingEntry(const CAccountingEntry& acentry);
int64 GetAccountCreditDebit(const std::string& strAccount);
void ListAccountCreditDebit(const std::string& strAccount, std::list<CAccountingEntry>& acentries);
DBErrors ReorderTransactions(CWallet*);
DBErrors LoadWallet(CWallet* pwallet);
static bool Recover(CDBEnv& dbenv, std::string filename, bool fOnlyKeys);
static bool Recover(CDBEnv& dbenv, std::string filename);
};
#endif // BITCOIN_WALLETDB_H
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