root
100 lines
3.4 KiB
C++
100 lines
3.4 KiB
C++
// Copyright (c) 2009-2010 Satoshi Nakamoto
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// Copyright (c) 2009-2014 The Bitcoin developers
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// Copyright (c) 2016-2018 The PIVX 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 "leveldbwrapper.h"
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#include "main.h"
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#include "zagr/zerocoin.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 CCoins;
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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 ? 4096 : 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 LevelDB coin database (chainstate/) */
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class CCoinsViewDB : public CCoinsView
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{
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protected:
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CLevelDBWrapper 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 CLevelDBWrapper
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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 WriteBlockIndex(const CDiskBlockIndex& blockindex);
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bool ReadBlockFileInfo(int nFile, CBlockFileInfo& fileinfo);
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bool WriteBlockFileInfo(int nFile, const CBlockFileInfo& fileinfo);
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bool ReadLastBlockFile(int& nFile);
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bool WriteLastBlockFile(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 WriteFlag(const std::string& name, bool fValue);
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bool ReadFlag(const std::string& name, bool& fValue);
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bool WriteInt(const std::string& name, int nValue);
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bool ReadInt(const std::string& name, int& nValue);
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bool LoadBlockIndexGuts();
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};
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/** Zerocoin database (zerocoin/) */
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class CZerocoinDB : public CLevelDBWrapper
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{
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public:
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CZerocoinDB(size_t nCacheSize, bool fMemory = false, bool fWipe = false);
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private:
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CZerocoinDB(const CZerocoinDB&);
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void operator=(const CZerocoinDB&);
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public:
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/** Write zAGR mints to the zerocoinDB in a batch */
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bool WriteCoinMintBatch(const std::vector<std::pair<libzerocoin::PublicCoin, uint256> >& mintInfo);
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bool ReadCoinMint(const CBigNum& bnPubcoin, uint256& txHash);
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bool ReadCoinMint(const uint256& hashPubcoin, uint256& hashTx);
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/** Write zAGR spends to the zerocoinDB in a batch */
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bool WriteCoinSpendBatch(const std::vector<std::pair<libzerocoin::CoinSpend, uint256> >& spendInfo);
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bool ReadCoinSpend(const CBigNum& bnSerial, uint256& txHash);
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bool ReadCoinSpend(const uint256& hashSerial, uint256 &txHash);
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bool EraseCoinMint(const CBigNum& bnPubcoin);
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bool EraseCoinSpend(const CBigNum& bnSerial);
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bool WipeCoins(const std::string& strType);
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bool WriteAccumulatorValue(const uint32_t& nChecksum, const CBigNum& bnValue);
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bool ReadAccumulatorValue(const uint32_t& nChecksum, CBigNum& bnValue);
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bool EraseAccumulatorValue(const uint32_t& nChecksum);
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};
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#endif // BITCOIN_TXDB_H
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