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// Copyright (c) 2009-2010 Satoshi Nakamoto
// Copyright (c) 2009-2015 The Bitcoin Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#ifndef BITCOIN_WALLET_WALLETDB_H
#define BITCOIN_WALLET_WALLETDB_H
#include "amount.h"
#include "wallet/db.h"
#include "key.h"
#include <list>
#include <stdint.h>
#include <string>
#include <utility>
#include <vector>
static const bool DEFAULT_FLUSHWALLET = true;
class CAccount;
class CAccountingEntry;
struct CBlockLocator;
class CKeyPool;
class CMasterKey;
class CScript;
class CWallet;
class CWalletTx;
class uint160;
class uint256;
/** 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
};
class CKeyMetadata
{
public:
static const int CURRENT_VERSION=1;
int nVersion;
int64_t nCreateTime; // 0 means unknown
CKeyMetadata()
{
SetNull();
}
CKeyMetadata(int64_t nCreateTime_)
{
nVersion = CKeyMetadata::CURRENT_VERSION;
nCreateTime = nCreateTime_;
}
ADD_SERIALIZE_METHODS;
template <typename Stream, typename Operation>
inline void SerializationOp(Stream& s, Operation ser_action, int nType, int nVersion) {
READWRITE(this->nVersion);
nVersion = this->nVersion;
READWRITE(nCreateTime);
}
void SetNull()
{
nVersion = CKeyMetadata::CURRENT_VERSION;
nCreateTime = 0;
}
};
/** Access to the wallet database */
class CWalletDB : public CDB
{
public:
CWalletDB(const std::string& strFilename, const char* pszMode = "r+", bool fFlushOnClose = true) : CDB(strFilename, pszMode, fFlushOnClose)
{
}
bool WriteName(const std::string& strAddress, const std::string& strName);
bool EraseName(const std::string& strAddress);
bool WritePurpose(const std::string& strAddress, const std::string& purpose);
bool ErasePurpose(const std::string& strAddress);
bool WriteTx(uint256 hash, const CWalletTx& wtx);
bool EraseTx(uint256 hash);
bool WriteKey(const CPubKey& vchPubKey, const CPrivKey& vchPrivKey, const CKeyMetadata &keyMeta);
bool WriteCryptedKey(const CPubKey& vchPubKey, const std::vector<unsigned char>& vchCryptedSecret, const CKeyMetadata &keyMeta);
bool WriteMasterKey(unsigned int nID, const CMasterKey& kMasterKey);
bool WriteCScript(const uint160& hash, const CScript& redeemScript);
bool WriteWatchOnly(const CScript &script);
bool EraseWatchOnly(const CScript &script);
bool WriteBestBlock(const CBlockLocator& locator);
bool ReadBestBlock(CBlockLocator& locator);
bool WriteOrderPosNext(int64_t nOrderPosNext);
bool WriteDefaultKey(const CPubKey& vchPubKey);
bool ReadPool(int64_t nPool, CKeyPool& keypool);
bool WritePool(int64_t nPool, const CKeyPool& keypool);
bool ErasePool(int64_t nPool);
bool WriteMinVersion(int nVersion);
/// This writes directly to the database, and will not update the CWallet's cached accounting entries!
/// Use wallet.AddAccountingEntry instead, to write *and* update its caches.
bool WriteAccountingEntry_Backend(const CAccountingEntry& acentry);
bool ReadAccount(const std::string& strAccount, CAccount& account);
bool WriteAccount(const std::string& strAccount, const CAccount& account);
/// Write destination data key,value tuple to database
bool WriteDestData(const std::string &address, const std::string &key, const std::string &value);
/// Erase destination data tuple from wallet database
bool EraseDestData(const std::string &address, const std::string &key);
CAmount GetAccountCreditDebit(const std::string& strAccount);
void ListAccountCreditDebit(const std::string& strAccount, std::list<CAccountingEntry>& acentries);
DBErrors ReorderTransactions(CWallet* pwallet);
DBErrors LoadWallet(CWallet* pwallet);
DBErrors FindWalletTx(CWallet* pwallet, std::vector<uint256>& vTxHash, std::vector<CWalletTx>& vWtx);
DBErrors ZapWalletTx(CWallet* pwallet, std::vector<CWalletTx>& vWtx);
DBErrors ZapSelectTx(CWallet* pwallet, std::vector<uint256>& vHashIn, std::vector<uint256>& vHashOut);
static bool Recover(CDBEnv& dbenv, const std::string& filename, bool fOnlyKeys);
static bool Recover(CDBEnv& dbenv, const std::string& filename);
private:
CWalletDB(const CWalletDB&);
void operator=(const CWalletDB&);
bool WriteAccountingEntry(const uint64_t nAccEntryNum, const CAccountingEntry& acentry);
};
bool BackupWallet(const CWallet& wallet, const std::string& strDest);
void ThreadFlushWalletDB(const std::string& strFile);
#endif // BITCOIN_WALLET_WALLETDB_H
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