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- // Copyright (c) 2009-2010 Satoshi Nakamoto
- // Copyright (c) 2009-2014 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_TXDB_H
- #define BITCOIN_TXDB_H
- #include "coins.h"
- #include "leveldbwrapper.h"
- #include <map>
- #include <string>
- #include <utility>
- #include <vector>
- class CBlockFileInfo;
- class CBlockIndex;
- struct CDiskTxPos;
- class uint256;
- //! -dbcache default (MiB)
- static const int64_t nDefaultDbCache = 100;
- //! max. -dbcache in (MiB)
- static const int64_t nMaxDbCache = sizeof(void*) > 4 ? 16384 : 1024;
- //! min. -dbcache in (MiB)
- static const int64_t nMinDbCache = 4;
- /** CCoinsView backed by the LevelDB coin database (chainstate/) */
- class CCoinsViewDB : public CCoinsView
- {
- protected:
- CLevelDBWrapper db;
- public:
- CCoinsViewDB(size_t nCacheSize, bool fMemory = false, bool fWipe = false);
- bool GetAnchorAt(const uint256 &rt, ZCIncrementalMerkleTree &tree) const;
- bool GetNullifier(const uint256 &nf) const;
- bool GetCoins(const uint256 &txid, CCoins &coins) const;
- bool HaveCoins(const uint256 &txid) const;
- uint256 GetBestBlock() const;
- uint256 GetBestAnchor() const;
- bool BatchWrite(CCoinsMap &mapCoins,
- const uint256 &hashBlock,
- const uint256 &hashAnchor,
- CAnchorsMap &mapAnchors,
- CNullifiersMap &mapNullifiers);
- bool GetStats(CCoinsStats &stats) const;
- };
- /** Access to the block database (blocks/index/) */
- class CBlockTreeDB : public CLevelDBWrapper
- {
- public:
- CBlockTreeDB(size_t nCacheSize, bool fMemory = false, bool fWipe = false);
- private:
- CBlockTreeDB(const CBlockTreeDB&);
- void operator=(const CBlockTreeDB&);
- public:
- bool WriteBatchSync(const std::vector<std::pair<int, const CBlockFileInfo*> >& fileInfo, int nLastFile, const std::vector<const CBlockIndex*>& blockinfo);
- bool ReadBlockFileInfo(int nFile, CBlockFileInfo &fileinfo);
- bool ReadLastBlockFile(int &nFile);
- bool WriteReindexing(bool fReindex);
- bool ReadReindexing(bool &fReindex);
- bool ReadTxIndex(const uint256 &txid, CDiskTxPos &pos);
- bool WriteTxIndex(const std::vector<std::pair<uint256, CDiskTxPos> > &list);
- bool WriteFlag(const std::string &name, bool fValue);
- bool ReadFlag(const std::string &name, bool &fValue);
- bool LoadBlockIndexGuts();
- };
- #endif // BITCOIN_TXDB_H
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