d4e551adfe
176c021[qa] Test non-atomic chainstate writes (Suhas Daftuar)d6af06dDont create pcoinsTip until after ReplayBlocks. (Matt Corallo)eaca1b7Random db flush crash simulator (Pieter Wuille)0580ee0Adapt memory usage estimation for flushing (Pieter Wuille)013a56aNon-atomic flushing using the blockchain as replay journal (Pieter Wuille)b3a279c[MOVEONLY] Move LastCommonAncestor to chain (Pieter Wuille) Tree-SHA512: 47ccc62303f9075c44d2a914be75bd6969ff881a857a2ff1227f05ec7def6f4c71c46680c5a28cb150c814999526797dc05cf2701fde1369c06169f46eccddee
129 lines
4.4 KiB
C++
129 lines
4.4 KiB
C++
// Copyright (c) 2009-2010 Satoshi Nakamoto
|
|
// Copyright (c) 2009-2016 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 "dbwrapper.h"
|
|
#include "chain.h"
|
|
|
|
#include <map>
|
|
#include <string>
|
|
#include <utility>
|
|
#include <vector>
|
|
|
|
class CBlockIndex;
|
|
class CCoinsViewDBCursor;
|
|
class uint256;
|
|
|
|
//! No need to periodic flush if at least this much space still available.
|
|
static constexpr int MAX_BLOCK_COINSDB_USAGE = 10;
|
|
//! -dbcache default (MiB)
|
|
static const int64_t nDefaultDbCache = 450;
|
|
//! -dbbatchsize default (bytes)
|
|
static const int64_t nDefaultDbBatchSize = 16 << 20;
|
|
//! max. -dbcache (MiB)
|
|
static const int64_t nMaxDbCache = sizeof(void*) > 4 ? 16384 : 1024;
|
|
//! min. -dbcache (MiB)
|
|
static const int64_t nMinDbCache = 4;
|
|
//! Max memory allocated to block tree DB specific cache, if no -txindex (MiB)
|
|
static const int64_t nMaxBlockDBCache = 2;
|
|
//! Max memory allocated to block tree DB specific cache, if -txindex (MiB)
|
|
// Unlike for the UTXO database, for the txindex scenario the leveldb cache make
|
|
// a meaningful difference: https://github.com/bitcoin/bitcoin/pull/8273#issuecomment-229601991
|
|
static const int64_t nMaxBlockDBAndTxIndexCache = 1024;
|
|
//! Max memory allocated to coin DB specific cache (MiB)
|
|
static const int64_t nMaxCoinsDBCache = 8;
|
|
|
|
struct CDiskTxPos : public CDiskBlockPos
|
|
{
|
|
unsigned int nTxOffset; // after header
|
|
|
|
ADD_SERIALIZE_METHODS;
|
|
|
|
template <typename Stream, typename Operation>
|
|
inline void SerializationOp(Stream& s, Operation ser_action) {
|
|
READWRITE(*(CDiskBlockPos*)this);
|
|
READWRITE(VARINT(nTxOffset));
|
|
}
|
|
|
|
CDiskTxPos(const CDiskBlockPos &blockIn, unsigned int nTxOffsetIn) : CDiskBlockPos(blockIn.nFile, blockIn.nPos), nTxOffset(nTxOffsetIn) {
|
|
}
|
|
|
|
CDiskTxPos() {
|
|
SetNull();
|
|
}
|
|
|
|
void SetNull() {
|
|
CDiskBlockPos::SetNull();
|
|
nTxOffset = 0;
|
|
}
|
|
};
|
|
|
|
/** CCoinsView backed by the coin database (chainstate/) */
|
|
class CCoinsViewDB : public CCoinsView
|
|
{
|
|
protected:
|
|
CDBWrapper db;
|
|
public:
|
|
CCoinsViewDB(size_t nCacheSize, bool fMemory = false, bool fWipe = false);
|
|
|
|
bool GetCoin(const COutPoint &outpoint, Coin &coin) const override;
|
|
bool HaveCoin(const COutPoint &outpoint) const override;
|
|
uint256 GetBestBlock() const override;
|
|
std::vector<uint256> GetHeadBlocks() const override;
|
|
bool BatchWrite(CCoinsMap &mapCoins, const uint256 &hashBlock) override;
|
|
CCoinsViewCursor *Cursor() const override;
|
|
|
|
//! Attempt to update from an older database format. Returns whether an error occurred.
|
|
bool Upgrade();
|
|
size_t EstimateSize() const override;
|
|
};
|
|
|
|
/** Specialization of CCoinsViewCursor to iterate over a CCoinsViewDB */
|
|
class CCoinsViewDBCursor: public CCoinsViewCursor
|
|
{
|
|
public:
|
|
~CCoinsViewDBCursor() {}
|
|
|
|
bool GetKey(COutPoint &key) const override;
|
|
bool GetValue(Coin &coin) const override;
|
|
unsigned int GetValueSize() const override;
|
|
|
|
bool Valid() const override;
|
|
void Next() override;
|
|
|
|
private:
|
|
CCoinsViewDBCursor(CDBIterator* pcursorIn, const uint256 &hashBlockIn):
|
|
CCoinsViewCursor(hashBlockIn), pcursor(pcursorIn) {}
|
|
std::unique_ptr<CDBIterator> pcursor;
|
|
std::pair<char, COutPoint> keyTmp;
|
|
|
|
friend class CCoinsViewDB;
|
|
};
|
|
|
|
/** Access to the block database (blocks/index/) */
|
|
class CBlockTreeDB : public CDBWrapper
|
|
{
|
|
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(const Consensus::Params& consensusParams, std::function<CBlockIndex*(const uint256&)> insertBlockIndex);
|
|
};
|
|
|
|
#endif // BITCOIN_TXDB_H
|