Browse Source

Remove BDB block database support

pull/1/head
Pieter Wuille 10 years ago
parent
commit
4ca60bba5c
  1. 46
      bitcoin-qt.pro
  2. 12
      src/makefile.linux-mingw
  3. 12
      src/makefile.mingw
  4. 12
      src/makefile.osx
  5. 12
      src/makefile.unix
  6. 5
      src/test/test_bitcoin.cpp
  7. 171
      src/txdb-bdb.cpp
  8. 61
      src/txdb-bdb.h
  9. 47
      src/txdb-leveldb.h
  10. 2
      src/txdb.cpp
  11. 49
      src/txdb.h

46
bitcoin-qt.pro

@ -90,33 +90,23 @@ contains(BITCOIN_NEED_QT_PLUGINS, 1) { @@ -90,33 +90,23 @@ contains(BITCOIN_NEED_QT_PLUGINS, 1) {
QTPLUGIN += qcncodecs qjpcodecs qtwcodecs qkrcodecs qtaccessiblewidgets
}
contains(USE_LEVELDB, -) {
message(Building without LevelDB)
SOURCES += src/txdb-bdb.cpp
HEADERS += src/txdb-bdb.h
INCLUDEPATH += src/leveldb/include src/leveldb/helpers
LIBS += $$PWD/src/leveldb/libleveldb.a $$PWD/src/leveldb/libmemenv.a
!windows {
genleveldb.commands = cd $$PWD/src/leveldb ; $(MAKE) libleveldb.a libmemenv.a
} else {
message(Building with LevelDB)
DEFINES += USE_LEVELDB
INCLUDEPATH += src/leveldb/include src/leveldb/helpers
LIBS += $$PWD/src/leveldb/libleveldb.a $$PWD/src/leveldb/libmemenv.a
SOURCES += src/leveldb.cpp src/txdb-leveldb.cpp
HEADERS += src/leveldb.h src/txdb-leveldb.h
!windows {
genleveldb.commands = cd $$PWD/src/leveldb ; $(MAKE) libleveldb.a libmemenv.a
} else {
# make an educated guess about what the ranlib command is called
isEmpty(QMAKE_RANLIB) {
QMAKE_RANLIB = $$replace(QMAKE_STRIP, strip, ranlib)
}
genleveldb.commands = cd $$PWD/src/leveldb ; CC=$$QMAKE_CC CXX=$$QMAKE_CXX TARGET_OS=OS_WINDOWS_CROSSCOMPILE CXXFLAGS="-I$$BOOST_INCLUDE_PATH" LDFLAGS="-L$$BOOST_LIB_PATH" $(MAKE) libleveldb.a libmemenv.a ; $$QMAKE_RANLIB $$PWD/src/leveldb/libleveldb.a ; $$QMAKE_RANLIB $$PWD/src/leveldb/libmemenv.a
# make an educated guess about what the ranlib command is called
isEmpty(QMAKE_RANLIB) {
QMAKE_RANLIB = $$replace(QMAKE_STRIP, strip, ranlib)
}
genleveldb.target = $$PWD/src/leveldb/libleveldb.a
genleveldb.depends = FORCE
PRE_TARGETDEPS += $$PWD/src/leveldb/libleveldb.a
QMAKE_EXTRA_TARGETS += genleveldb
# Gross ugly hack that depends on qmake internals, unfortunately there's no other way to do it.
QMAKE_CLEAN += $$PWD/src/leveldb/libleveldb.a; cd $$PWD/src/leveldb ; $(MAKE) clean
genleveldb.commands = cd $$PWD/src/leveldb ; CC=$$QMAKE_CC CXX=$$QMAKE_CXX TARGET_OS=OS_WINDOWS_CROSSCOMPILE CXXFLAGS="-I$$BOOST_INCLUDE_PATH" LDFLAGS="-L$$BOOST_LIB_PATH" $(MAKE) libleveldb.a libmemenv.a ; $$QMAKE_RANLIB $$PWD/src/leveldb/libleveldb.a ; $$QMAKE_RANLIB $$PWD/src/leveldb/libmemenv.a
}
genleveldb.target = $$PWD/src/leveldb/libleveldb.a
genleveldb.depends = FORCE
PRE_TARGETDEPS += $$PWD/src/leveldb/libleveldb.a
QMAKE_EXTRA_TARGETS += genleveldb
# Gross ugly hack that depends on qmake internals, unfortunately there's no other way to do it.
QMAKE_CLEAN += $$PWD/src/leveldb/libleveldb.a; cd $$PWD/src/leveldb ; $(MAKE) clean
# regenerate src/build.h
!windows|contains(USE_BUILD_INFO, 1) {
@ -202,7 +192,9 @@ HEADERS += src/qt/bitcoingui.h \ @@ -202,7 +192,9 @@ HEADERS += src/qt/bitcoingui.h \
src/qt/rpcconsole.h \
src/version.h \
src/netbase.h \
src/clientversion.h
src/clientversion.h \
src/txdb.h \
src/leveldb.h
SOURCES += src/qt/bitcoin.cpp src/qt/bitcoingui.cpp \
src/qt/transactiontablemodel.cpp \
@ -262,7 +254,9 @@ SOURCES += src/qt/bitcoin.cpp src/qt/bitcoingui.cpp \ @@ -262,7 +254,9 @@ SOURCES += src/qt/bitcoin.cpp src/qt/bitcoingui.cpp \
src/qt/notificator.cpp \
src/qt/qtipcserver.cpp \
src/qt/rpcconsole.cpp \
src/noui.cpp
src/noui.cpp \
src/leveldb.cpp \
src/txdb.cpp
RESOURCES += \
src/qt/bitcoin.qrc

12
src/makefile.linux-mingw

@ -6,7 +6,6 @@ DEPSDIR:=/usr/i586-mingw32msvc @@ -6,7 +6,6 @@ DEPSDIR:=/usr/i586-mingw32msvc
USE_UPNP:=0
USE_IPV6:=1
USE_LEVELDB:=1
INCLUDEPATHS= \
-I"$(CURDIR)" \
@ -83,21 +82,18 @@ OBJS= \ @@ -83,21 +82,18 @@ OBJS= \
obj/util.o \
obj/wallet.o \
obj/walletdb.o \
obj/noui.o
obj/noui.o \
obj/leveldb.o \
obj/txdb.o
all: bitcoind.exe
ifdef USE_LEVELDB
LIBS += $(CURDIR)/leveldb/libleveldb.a $(CURDIR)/leveldb/libmemenv.a
DEFS += -I"$(CURDIR)/leveldb/include" -DUSE_LEVELDB
DEFS += -I"$(CURDIR)/leveldb/include"
DEFS += -I"$(CURDIR)/leveldb/helpers"
OBJS += obj/leveldb.o obj/txdb-leveldb.o
leveldb/libleveldb.a:
@echo "Building LevelDB ..."; cd leveldb; TARGET_OS=OS_WINDOWS_CROSSCOMPILE CXXFLAGS="-I$(INCLUDEPATHS)" LDFLAGS="-L$(LIBPATHS)" make libleveldb.a libmemenv.a; cd ..
obj/leveldb.o: leveldb/libleveldb.a
else
OBJS += obj/txdb-bdb.o
endif
obj/build.h: FORCE
/bin/sh ../share/genbuild.sh obj/build.h

12
src/makefile.mingw

@ -4,7 +4,6 @@ @@ -4,7 +4,6 @@
USE_UPNP:=0
USE_IPV6:=1
USE_LEVELDB:=1
INCLUDEPATHS= \
-I"C:\boost-1.50.0-mgw" \
@ -79,7 +78,9 @@ OBJS= \ @@ -79,7 +78,9 @@ OBJS= \
obj/util.o \
obj/wallet.o \
obj/walletdb.o \
obj/noui.o
obj/noui.o \
obj/leveldb.o \
obj/txdb.o
all: bitcoind.exe
@ -90,17 +91,12 @@ test check: test_bitcoin.exe FORCE @@ -90,17 +91,12 @@ test check: test_bitcoin.exe FORCE
#
# LevelDB support
#
ifdef USE_LEVELDB
LIBS += $(CURDIR)/leveldb/libleveldb.a $(CURDIR)/leveldb/libmemenv.a
DEFS += $(addprefix -I,$(CURDIR)/leveldb/include) -DUSE_LEVELDB
DEFS += $(addprefix -I,$(CURDIR)/leveldb/include)
DEFS += $(addprefix -I,$(CURDIR)/leveldb/helpers)
OBJS += obj/leveldb.o obj/txdb-leveldb.o
leveldb/libleveldb.a:
cd leveldb; make libleveldb.a libmemenv.a; cd ..
obj/leveldb.o: leveldb/libleveldb.lib
else
OBJS += obj/txdb-bdb.o
endif
obj/%.o: %.cpp $(HEADERS)
g++ -c $(CFLAGS) -o $@ $<

12
src/makefile.osx vendored

@ -21,7 +21,6 @@ LIBPATHS= \ @@ -21,7 +21,6 @@ LIBPATHS= \
USE_UPNP:=1
USE_IPV6:=1
USE_LEVELDB:=1
LIBS= -dead_strip
@ -97,7 +96,9 @@ OBJS= \ @@ -97,7 +96,9 @@ OBJS= \
obj/util.o \
obj/wallet.o \
obj/walletdb.o \
obj/noui.o
obj/noui.o \
obj/leveldb.o \
obj/txdb.o
ifndef USE_UPNP
override USE_UPNP = -
@ -123,17 +124,12 @@ test check: test_bitcoin FORCE @@ -123,17 +124,12 @@ test check: test_bitcoin FORCE
#
# LevelDB support
#
ifdef USE_LEVELDB
LIBS += $(CURDIR)/leveldb/libleveldb.a $(CURDIR)/leveldb/libmemenv.a
DEFS += $(addprefix -I,$(CURDIR)/leveldb/include) -DUSE_LEVELDB
DEFS += $(addprefix -I,$(CURDIR)/leveldb/include)
DEFS += $(addprefix -I,$(CURDIR)/leveldb/helpers)
OBJS += obj/leveldb.o obj/txdb-leveldb.o
leveldb/libleveldb.a:
@echo "Building LevelDB ..."; cd leveldb; make libleveldb.a libmemenv.a; cd ..
obj/leveldb.o: leveldb/libleveldb.a
else
OBJS += obj/txdb-bdb.o
endif
# auto-generated dependencies:
-include obj/*.P

12
src/makefile.unix

@ -4,7 +4,6 @@ @@ -4,7 +4,6 @@
USE_UPNP:=0
USE_IPV6:=1
USE_LEVELDB:=1
LINK:=$(CXX)
@ -128,7 +127,9 @@ OBJS= \ @@ -128,7 +127,9 @@ OBJS= \
obj/util.o \
obj/wallet.o \
obj/walletdb.o \
obj/noui.o
obj/noui.o \
obj/leveldb.o \
obj/txdb.o
all: bitcoind
@ -139,17 +140,12 @@ test check: test_bitcoin FORCE @@ -139,17 +140,12 @@ test check: test_bitcoin FORCE
#
# LevelDB support
#
ifdef USE_LEVELDB
LIBS += $(CURDIR)/leveldb/libleveldb.a $(CURDIR)/leveldb/libmemenv.a
DEFS += $(addprefix -I,$(CURDIR)/leveldb/include) -DUSE_LEVELDB
DEFS += $(addprefix -I,$(CURDIR)/leveldb/include)
DEFS += $(addprefix -I,$(CURDIR)/leveldb/helpers)
OBJS += obj/leveldb.o obj/txdb-leveldb.o
leveldb/libleveldb.a:
@echo "Building LevelDB ..."; cd leveldb; make libleveldb.a libmemenv.a; cd ..;
obj/leveldb.o: leveldb/libleveldb.a
else
OBJS += obj/txdb-bdb.o
endif
# auto-generated dependencies:
-include obj/*.P

5
src/test/test_bitcoin.cpp

@ -19,13 +19,8 @@ struct TestingSetup { @@ -19,13 +19,8 @@ struct TestingSetup {
fPrintToDebugger = true; // don't want to write to debug.log file
noui_connect();
bitdb.MakeMock();
#ifdef USE_LEVELDB
pblocktree = new CBlockTreeDB(true);
pcoinsdbview = new CCoinsViewDB(true);
#else
pblocktree = new CBlockTreeDB();
pcoinsdbview = new CCoinsViewDB();
#endif
pcoinsTip = new CCoinsViewCache(*pcoinsdbview);
LoadBlockIndex(true);
bool fFirstRun;

171
src/txdb-bdb.cpp

@ -1,171 +0,0 @@ @@ -1,171 +0,0 @@
// Copyright (c) 2009-2010 Satoshi Nakamoto
// Copyright (c) 2009-2012 The Bitcoin developers
// Distributed under the MIT/X11 software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#include "txdb-bdb.h"
bool CCoinsDB::HaveCoins(uint256 hash) {
assert(!fClient);
return Exists(make_pair('c', hash));
}
bool CCoinsDB::ReadCoins(uint256 hash, CCoins &coins) {
assert(!fClient);
return Read(make_pair('c', hash), coins);
}
bool CCoinsDB::WriteCoins(uint256 hash, const CCoins &coins) {
assert(!fClient);
if (coins.IsPruned())
return Erase(make_pair('c', hash));
else
return Write(make_pair('c', hash), coins);
}
bool CCoinsDB::ReadHashBestChain(uint256& hashBestChain)
{
return Read('B', hashBestChain);
}
bool CCoinsDB::WriteHashBestChain(uint256 hashBestChain)
{
return Write('B', hashBestChain);
}
bool CBlockTreeDB::WriteBlockIndex(const CDiskBlockIndex& blockindex)
{
return Write(make_pair('b', blockindex.GetBlockHash()), blockindex);
}
bool CBlockTreeDB::ReadBestInvalidWork(CBigNum& bnBestInvalidWork)
{
return Read('I', bnBestInvalidWork);
}
bool CBlockTreeDB::WriteBestInvalidWork(CBigNum bnBestInvalidWork)
{
return Write('I', bnBestInvalidWork);
}
bool CBlockTreeDB::WriteBlockFileInfo(int nFile, const CBlockFileInfo &info) {
return Write(make_pair('f', nFile), info);
}
bool CBlockTreeDB::ReadBlockFileInfo(int nFile, CBlockFileInfo &info) {
return Read(make_pair('f', nFile), info);
}
bool CBlockTreeDB::WriteLastBlockFile(int nFile) {
return Write('l', nFile);
}
bool CBlockTreeDB::ReadLastBlockFile(int &nFile) {
return Read('l', nFile);
}
CCoinsViewDB::CCoinsViewDB() : db() {}
bool CCoinsViewDB::GetCoins(uint256 txid, CCoins &coins) { return db.ReadCoins(txid, coins); }
bool CCoinsViewDB::SetCoins(uint256 txid, const CCoins &coins) { return db.WriteCoins(txid, coins); }
bool CCoinsViewDB::HaveCoins(uint256 txid) { return db.HaveCoins(txid); }
CBlockIndex *CCoinsViewDB::GetBestBlock() {
uint256 hashBestChain;
if (!db.ReadHashBestChain(hashBestChain))
return NULL;
std::map<uint256, CBlockIndex*>::iterator it = mapBlockIndex.find(hashBestChain);
if (it == mapBlockIndex.end())
return NULL;
return it->second;
}
bool CCoinsViewDB::SetBestBlock(CBlockIndex *pindex) { return db.WriteHashBestChain(pindex->GetBlockHash()); }
bool CCoinsViewDB::BatchWrite(const std::map<uint256, CCoins> &mapCoins, CBlockIndex *pindex) {
printf("Committing %u changed transactions to coin database...\n", (unsigned int)mapCoins.size());
if (!db.TxnBegin())
return false;
bool fOk = true;
for (std::map<uint256, CCoins>::const_iterator it = mapCoins.begin(); it != mapCoins.end(); it++) {
fOk = db.WriteCoins(it->first, it->second);
if (!fOk)
break;
}
if (fOk)
fOk = db.WriteHashBestChain(pindex->GetBlockHash());
if (!fOk)
db.TxnAbort();
else
fOk = db.TxnCommit();
return fOk;
}
bool CBlockTreeDB::LoadBlockIndexGuts()
{
// Get database cursor
Dbc* pcursor = GetCursor();
if (!pcursor)
return false;
// Load mapBlockIndex
unsigned int fFlags = DB_SET_RANGE;
loop
{
// Read next record
CDataStream ssKey(SER_DISK, CLIENT_VERSION);
if (fFlags == DB_SET_RANGE)
ssKey << make_pair('b', uint256(0));
CDataStream ssValue(SER_DISK, CLIENT_VERSION);
int ret = ReadAtCursor(pcursor, ssKey, ssValue, fFlags);
fFlags = DB_NEXT;
if (ret == DB_NOTFOUND)
break;
else if (ret != 0)
return false;
// Unserialize
try {
char chType;
ssKey >> chType;
if (chType == 'b' && !fRequestShutdown)
{
CDiskBlockIndex diskindex;
ssValue >> diskindex;
// Construct block index object
CBlockIndex* pindexNew = InsertBlockIndex(diskindex.GetBlockHash());
pindexNew->pprev = InsertBlockIndex(diskindex.hashPrev);
pindexNew->nHeight = diskindex.nHeight;
pindexNew->nFile = diskindex.nFile;
pindexNew->nDataPos = diskindex.nDataPos;
pindexNew->nUndoPos = diskindex.nUndoPos;
pindexNew->nVersion = diskindex.nVersion;
pindexNew->hashMerkleRoot = diskindex.hashMerkleRoot;
pindexNew->nTime = diskindex.nTime;
pindexNew->nBits = diskindex.nBits;
pindexNew->nNonce = diskindex.nNonce;
pindexNew->nStatus = diskindex.nStatus;
pindexNew->nTx = diskindex.nTx;
// Watch for genesis block
if (pindexGenesisBlock == NULL && diskindex.GetBlockHash() == hashGenesisBlock)
pindexGenesisBlock = pindexNew;
if (!pindexNew->CheckIndex())
return error("LoadBlockIndex() : CheckIndex failed: %s", pindexNew->ToString().c_str());
}
else
{
break; // if shutdown requested or finished loading block index
}
} // try
catch (std::exception &e) {
return error("%s() : deserialize error", __PRETTY_FUNCTION__);
}
}
pcursor->close();
return true;
}

61
src/txdb-bdb.h

@ -1,61 +0,0 @@ @@ -1,61 +0,0 @@
// Copyright (c) 2009-2010 Satoshi Nakamoto
// Copyright (c) 2009-2012 The Bitcoin developers
// Distributed under the MIT/X11 software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#ifndef BITCOIN_TXDB_BDB_H
#define BITCOIN_TXDB_BDB_H
#include "db.h"
/** Access to the transaction database (coins.dat) */
class CCoinsDB : public CDB
{
public:
CCoinsDB() : CDB("coins.dat", "cr+") { }
private:
CCoinsDB(const CCoinsDB&);
void operator=(const CCoinsDB&);
public:
bool ReadCoins(uint256 hash, CCoins &coins);
bool WriteCoins(uint256 hash, const CCoins& coins);
bool HaveCoins(uint256 hash);
bool ReadHashBestChain(uint256& hashBestChain);
bool WriteHashBestChain(uint256 hashBestChain);
};
/** CCoinsView backed by a CCoinsDB */
class CCoinsViewDB : public CCoinsView
{
protected:
CCoinsDB db;
public:
CCoinsViewDB();
bool GetCoins(uint256 txid, CCoins &coins);
bool SetCoins(uint256 txid, const CCoins &coins);
bool HaveCoins(uint256 txid);
CBlockIndex *GetBestBlock();
bool SetBestBlock(CBlockIndex *pindex);
bool BatchWrite(const std::map<uint256, CCoins> &mapCoins, CBlockIndex *pindex);
};
/** Access to the block database (blktree.dat) */
class CBlockTreeDB : public CDB
{
public:
CBlockTreeDB() : CDB("blktree.dat", "cr+") { }
private:
CBlockTreeDB(const CBlockTreeDB&);
void operator=(const CBlockTreeDB&);
public:
bool WriteBlockIndex(const CDiskBlockIndex& blockindex);
bool ReadBestInvalidWork(CBigNum& bnBestInvalidWork);
bool WriteBestInvalidWork(CBigNum bnBestInvalidWork);
bool ReadBlockFileInfo(int nFile, CBlockFileInfo &fileinfo);
bool WriteBlockFileInfo(int nFile, const CBlockFileInfo &fileinfo);
bool ReadLastBlockFile(int &nFile);
bool WriteLastBlockFile(int nFile);
bool LoadBlockIndexGuts();
};
#endif // BITCOIN_TXDB_BDB_H

47
src/txdb-leveldb.h

@ -1,47 +0,0 @@ @@ -1,47 +0,0 @@
// Copyright (c) 2009-2010 Satoshi Nakamoto
// Copyright (c) 2009-2012 The Bitcoin developers
// Distributed under the MIT/X11 software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#ifndef BITCOIN_TXDB_LEVELDB_H
#define BITCOIN_TXDB_LEVELDB_H
#include "main.h"
#include "leveldb.h"
/** CCoinsView backed by the LevelDB coin database (coins/) */
class CCoinsViewDB : public CCoinsView
{
protected:
CLevelDB db;
public:
CCoinsViewDB(bool fMemory = false);
bool GetCoins(uint256 txid, CCoins &coins);
bool SetCoins(uint256 txid, const CCoins &coins);
bool HaveCoins(uint256 txid);
CBlockIndex *GetBestBlock();
bool SetBestBlock(CBlockIndex *pindex);
bool BatchWrite(const std::map<uint256, CCoins> &mapCoins, CBlockIndex *pindex);
bool GetStats(CCoinsStats &stats);
};
/** Access to the block database (blktree/) */
class CBlockTreeDB : public CLevelDB
{
public:
CBlockTreeDB(bool fMemory = false);
private:
CBlockTreeDB(const CBlockTreeDB&);
void operator=(const CBlockTreeDB&);
public:
bool WriteBlockIndex(const CDiskBlockIndex& blockindex);
bool ReadBestInvalidWork(CBigNum& bnBestInvalidWork);
bool WriteBestInvalidWork(const CBigNum& bnBestInvalidWork);
bool ReadBlockFileInfo(int nFile, CBlockFileInfo &fileinfo);
bool WriteBlockFileInfo(int nFile, const CBlockFileInfo &fileinfo);
bool ReadLastBlockFile(int &nFile);
bool WriteLastBlockFile(int nFile);
bool LoadBlockIndexGuts();
};
#endif // BITCOIN_TXDB_LEVELDB_H

2
src/txdb-leveldb.cpp → src/txdb.cpp

@ -3,7 +3,7 @@ @@ -3,7 +3,7 @@
// Distributed under the MIT/X11 software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#include "txdb-leveldb.h"
#include "txdb.h"
#include "main.h"
using namespace std;

49
src/txdb.h

@ -2,13 +2,46 @@ @@ -2,13 +2,46 @@
// Copyright (c) 2009-2012 The Bitcoin developers
// Distributed under the MIT/X11 software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#ifndef BITCOIN_TXDB_H
#define BITCOIN_TXDB_H
#ifndef BITCOIN_TXDB_LEVELDB_H
#define BITCOIN_TXDB_LEVELDB_H
#ifdef USE_LEVELDB
#include "txdb-leveldb.h"
#else
#include "txdb-bdb.h"
#endif
#include "main.h"
#include "leveldb.h"
#endif // BITCOIN_TXDB_H
/** CCoinsView backed by the LevelDB coin database (coins/) */
class CCoinsViewDB : public CCoinsView
{
protected:
CLevelDB db;
public:
CCoinsViewDB(bool fMemory = false);
bool GetCoins(uint256 txid, CCoins &coins);
bool SetCoins(uint256 txid, const CCoins &coins);
bool HaveCoins(uint256 txid);
CBlockIndex *GetBestBlock();
bool SetBestBlock(CBlockIndex *pindex);
bool BatchWrite(const std::map<uint256, CCoins> &mapCoins, CBlockIndex *pindex);
bool GetStats(CCoinsStats &stats);
};
/** Access to the block database (blktree/) */
class CBlockTreeDB : public CLevelDB
{
public:
CBlockTreeDB(bool fMemory = false);
private:
CBlockTreeDB(const CBlockTreeDB&);
void operator=(const CBlockTreeDB&);
public:
bool WriteBlockIndex(const CDiskBlockIndex& blockindex);
bool ReadBestInvalidWork(CBigNum& bnBestInvalidWork);
bool WriteBestInvalidWork(const CBigNum& bnBestInvalidWork);
bool ReadBlockFileInfo(int nFile, CBlockFileInfo &fileinfo);
bool WriteBlockFileInfo(int nFile, const CBlockFileInfo &fileinfo);
bool ReadLastBlockFile(int &nFile);
bool WriteLastBlockFile(int nFile);
bool LoadBlockIndexGuts();
};
#endif // BITCOIN_TXDB_LEVELDB_H

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