87 lines
3.3 KiB
C++
87 lines
3.3 KiB
C++
// Copyright (c) 2009-2010 Satoshi Nakamoto
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// Copyright (c) 2009-2015 The Bitcoin Core developers
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// Distributed under the MIT software license, see the accompanying
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// file COPYING or http://www.opensource.org/licenses/mit-license.php.
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#ifndef BITCOIN_TXDB_H
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#define BITCOIN_TXDB_H
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#include "coins.h"
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#include "dbwrapper.h"
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#include <map>
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#include <string>
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#include <utility>
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#include <vector>
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class CBlockFileInfo;
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class CBlockIndex;
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struct CDiskTxPos;
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struct CAddressUnspentKey;
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struct CAddressUnspentValue;
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struct CAddressIndexKey;
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struct CAddressIndexIteratorKey;
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struct CAddressIndexIteratorHeightKey;
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struct CTimestampIndexKey;
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struct CTimestampIndexIteratorKey;
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struct CSpentIndexKey;
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struct CSpentIndexValue;
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class uint256;
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//! -dbcache default (MiB)
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static const int64_t nDefaultDbCache = 100;
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//! max. -dbcache in (MiB)
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static const int64_t nMaxDbCache = sizeof(void*) > 4 ? 16384 : 1024;
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//! min. -dbcache in (MiB)
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static const int64_t nMinDbCache = 4;
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/** CCoinsView backed by the coin database (chainstate/) */
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class CCoinsViewDB : public CCoinsView
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{
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protected:
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CDBWrapper db;
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public:
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CCoinsViewDB(size_t nCacheSize, bool fMemory = false, bool fWipe = false);
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bool GetCoins(const uint256 &txid, CCoins &coins) const;
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bool HaveCoins(const uint256 &txid) const;
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uint256 GetBestBlock() const;
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bool BatchWrite(CCoinsMap &mapCoins, const uint256 &hashBlock);
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bool GetStats(CCoinsStats &stats) const;
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};
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/** Access to the block database (blocks/index/) */
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class CBlockTreeDB : public CDBWrapper
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{
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public:
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CBlockTreeDB(size_t nCacheSize, bool fMemory = false, bool fWipe = false);
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private:
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CBlockTreeDB(const CBlockTreeDB&);
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void operator=(const CBlockTreeDB&);
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public:
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bool WriteBatchSync(const std::vector<std::pair<int, const CBlockFileInfo*> >& fileInfo, int nLastFile, const std::vector<const CBlockIndex*>& blockinfo);
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bool ReadBlockFileInfo(int nFile, CBlockFileInfo &fileinfo);
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bool ReadLastBlockFile(int &nFile);
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bool WriteReindexing(bool fReindex);
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bool ReadReindexing(bool &fReindex);
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bool ReadTxIndex(const uint256 &txid, CDiskTxPos &pos);
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bool WriteTxIndex(const std::vector<std::pair<uint256, CDiskTxPos> > &list);
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bool ReadSpentIndex(CSpentIndexKey &key, CSpentIndexValue &value);
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bool UpdateSpentIndex(const std::vector<std::pair<CSpentIndexKey, CSpentIndexValue> >&vect);
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bool UpdateAddressUnspentIndex(const std::vector<std::pair<CAddressUnspentKey, CAddressUnspentValue > >&vect);
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bool ReadAddressUnspentIndex(uint160 addressHash, int type,
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std::vector<std::pair<CAddressUnspentKey, CAddressUnspentValue> > &vect);
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bool WriteAddressIndex(const std::vector<std::pair<CAddressIndexKey, CAmount> > &vect);
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bool EraseAddressIndex(const std::vector<std::pair<CAddressIndexKey, CAmount> > &vect);
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bool ReadAddressIndex(uint160 addressHash, int type,
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std::vector<std::pair<CAddressIndexKey, CAmount> > &addressIndex,
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int start = 0, int end = 0);
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bool WriteTimestampIndex(const CTimestampIndexKey ×tampIndex);
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bool ReadTimestampIndex(const unsigned int &high, const unsigned int &low, std::vector<uint256> &vect);
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bool WriteFlag(const std::string &name, bool fValue);
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bool ReadFlag(const std::string &name, bool &fValue);
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bool LoadBlockIndexGuts();
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};
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#endif // BITCOIN_TXDB_H
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