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twister-core/src/wallet.h

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// 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_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"
class CAccountingEntry;
class CWalletTx;
class CReserveKey;
class COutput;
/** (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;
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;
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 AddKey(const CKey& key);
// Adds a key to the store, without saving it to disk (used by LoadWallet)
bool LoadKey(const CKey& key) { return CCryptoKeyStore::AddKey(key); }
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) { SetMinVersion(FEATURE_WALLETCRYPT); return CCryptoKeyStore::AddCryptedKey(vchPubKey, 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);
bool CreateTransaction(CScript scriptPubKey, int64 nValue, CWalletTx& wtxNew, CReserveKey& reservekey, int64& nFeeRet);
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))
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()
{
if (!fShutdown)
ReturnKey();
}
void ReturnKey();
CPubKey GetReservedKey();
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;
if (GetDepthInMainChain() >= 1)
return true;
if (!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;
if (ptx->GetDepthInMainChain() >= 1)
continue;
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().substr(0,10).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