// Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2011 The Bitcoin developers
+// 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_DB_H
#define BITCOIN_DB_H
-#include "key.h"
+#include "main.h"
#include <map>
#include <string>
#include <db_cxx.h>
-class CTxIndex;
+class CAddress;
+class CAddrMan;
+class CBlockLocator;
class CDiskBlockIndex;
class CDiskTxPos;
+class CMasterKey;
class COutPoint;
-class CAddress;
-class CWalletTx;
+class CTxIndex;
class CWallet;
-class CAccount;
-class CAccountingEntry;
-class CBlockLocator;
-
+class CWalletTx;
extern unsigned int nWalletDBUpdated;
-extern DbEnv dbenv;
-extern void DBFlush(bool fShutdown);
void ThreadFlushWalletDB(void* parg);
bool BackupWallet(const CWallet& wallet, const std::string& strDest);
+bool DumpWallet(CWallet* pwallet, const std::string& strDest);
+bool ImportWallet(CWallet* pwallet, const std::string& strLocation);
+class CDBEnv
+{
+private:
+ bool fDetachDB;
+ bool fDbEnvInit;
+ bool fMockDb;
+ boost::filesystem::path pathEnv;
+ std::string strPath;
+
+ void EnvShutdown();
+public:
+ mutable CCriticalSection cs_db;
+ DbEnv dbenv;
+ std::map<std::string, int> mapFileUseCount;
+ std::map<std::string, Db*> mapDb;
+
+ CDBEnv();
+ ~CDBEnv();
+ void MakeMock();
+ bool IsMock() { return fMockDb; };
+
+ /*
+ * Verify that database file strFile is OK. If it is not,
+ * call the callback to try to recover.
+ * This must be called BEFORE strFile is opened.
+ * Returns true if strFile is OK.
+ */
+ enum VerifyResult { VERIFY_OK, RECOVER_OK, RECOVER_FAIL };
+ VerifyResult Verify(std::string strFile, bool (*recoverFunc)(CDBEnv& dbenv, std::string strFile));
+ /*
+ * Salvage data from a file that Verify says is bad.
+ * fAggressive sets the DB_AGGRESSIVE flag (see berkeley DB->verify() method documentation).
+ * Appends binary key/value pairs to vResult, returns true if successful.
+ * NOTE: reads the entire database into memory, so cannot be used
+ * for huge databases.
+ */
+ typedef std::pair<std::vector<unsigned char>, std::vector<unsigned char> > KeyValPair;
+ bool Salvage(std::string strFile, bool fAggressive, std::vector<KeyValPair>& vResult);
+
+ bool Open(boost::filesystem::path pathEnv_);
+ void Close();
+ void Flush(bool fShutdown);
+ void CheckpointLSN(std::string strFile);
+ void SetDetach(bool fDetachDB_) { fDetachDB = fDetachDB_; }
+ bool GetDetach() { return fDetachDB; }
+ void CloseDb(const std::string& strFile);
+ bool RemoveDb(const std::string& strFile);
+
+ DbTxn *TxnBegin(int flags=DB_TXN_WRITE_NOSYNC)
+ {
+ DbTxn* ptxn = NULL;
+ int ret = dbenv.txn_begin(NULL, &ptxn, flags);
+ if (!ptxn || ret != 0)
+ return NULL;
+ return ptxn;
+ }
+};
+
+extern CDBEnv bitdb;
+
+
+/** RAII class that provides access to a Berkeley database */
class CDB
{
protected:
Db* pdb;
std::string strFile;
- std::vector<DbTxn*> vTxn;
+ DbTxn *activeTxn;
bool fReadOnly;
explicit CDB(const char* pszFile, const char* pszMode="r+");
return false;
// Key
- CDataStream ssKey(SER_DISK);
+ CDataStream ssKey(SER_DISK, CLIENT_VERSION);
ssKey.reserve(1000);
ssKey << key;
- Dbt datKey(&ssKey[0], ssKey.size());
+ Dbt datKey(&ssKey[0], (uint32_t)ssKey.size());
// Read
Dbt datValue;
datValue.set_flags(DB_DBT_MALLOC);
- int ret = pdb->get(GetTxn(), &datKey, &datValue, 0);
+ int ret = pdb->get(activeTxn, &datKey, &datValue, 0);
memset(datKey.get_data(), 0, datKey.get_size());
if (datValue.get_data() == NULL)
return false;
// Unserialize value
try {
- CDataStream ssValue((char*)datValue.get_data(), (char*)datValue.get_data() + datValue.get_size(), SER_DISK);
+ CDataStream ssValue((char*)datValue.get_data(), (char*)datValue.get_data() + datValue.get_size(), SER_DISK, CLIENT_VERSION);
ssValue >> value;
}
- catch (std::exception &e) {
+ catch (const std::exception&) {
return false;
}
assert(!"Write called on database in read-only mode");
// Key
- CDataStream ssKey(SER_DISK);
+ CDataStream ssKey(SER_DISK, CLIENT_VERSION);
ssKey.reserve(1000);
ssKey << key;
- Dbt datKey(&ssKey[0], ssKey.size());
+ Dbt datKey(&ssKey[0], (uint32_t)ssKey.size());
// Value
- CDataStream ssValue(SER_DISK);
+ CDataStream ssValue(SER_DISK, CLIENT_VERSION);
ssValue.reserve(10000);
ssValue << value;
- Dbt datValue(&ssValue[0], ssValue.size());
+ Dbt datValue(&ssValue[0], (uint32_t)ssValue.size());
// Write
- int ret = pdb->put(GetTxn(), &datKey, &datValue, (fOverwrite ? 0 : DB_NOOVERWRITE));
+ int ret = pdb->put(activeTxn, &datKey, &datValue, (fOverwrite ? 0 : DB_NOOVERWRITE));
// Clear memory in case it was a private key
memset(datKey.get_data(), 0, datKey.get_size());
assert(!"Erase called on database in read-only mode");
// Key
- CDataStream ssKey(SER_DISK);
+ CDataStream ssKey(SER_DISK, CLIENT_VERSION);
ssKey.reserve(1000);
ssKey << key;
- Dbt datKey(&ssKey[0], ssKey.size());
+ Dbt datKey(&ssKey[0], (uint32_t)ssKey.size());
// Erase
- int ret = pdb->del(GetTxn(), &datKey, 0);
+ int ret = pdb->del(activeTxn, &datKey, 0);
// Clear memory
memset(datKey.get_data(), 0, datKey.get_size());
return false;
// Key
- CDataStream ssKey(SER_DISK);
+ CDataStream ssKey(SER_DISK, CLIENT_VERSION);
ssKey.reserve(1000);
ssKey << key;
- Dbt datKey(&ssKey[0], ssKey.size());
+ Dbt datKey(&ssKey[0], (uint32_t)ssKey.size());
// Exists
- int ret = pdb->exists(GetTxn(), &datKey, 0);
+ int ret = pdb->exists(activeTxn, &datKey, 0);
// Clear memory
memset(datKey.get_data(), 0, datKey.get_size());
if (fFlags == DB_SET || fFlags == DB_SET_RANGE || fFlags == DB_GET_BOTH || fFlags == DB_GET_BOTH_RANGE)
{
datKey.set_data(&ssKey[0]);
- datKey.set_size(ssKey.size());
+ datKey.set_size((uint32_t)ssKey.size());
}
Dbt datValue;
if (fFlags == DB_GET_BOTH || fFlags == DB_GET_BOTH_RANGE)
{
datValue.set_data(&ssValue[0]);
- datValue.set_size(ssValue.size());
+ datValue.set_size((uint32_t)ssValue.size());
}
datKey.set_flags(DB_DBT_MALLOC);
datValue.set_flags(DB_DBT_MALLOC);
return 0;
}
- DbTxn* GetTxn()
- {
- if (!vTxn.empty())
- return vTxn.back();
- else
- return NULL;
- }
-
public:
bool TxnBegin()
{
- if (!pdb)
+ if (!pdb || activeTxn)
return false;
- DbTxn* ptxn = NULL;
- int ret = dbenv.txn_begin(GetTxn(), &ptxn, DB_TXN_NOSYNC);
- if (!ptxn || ret != 0)
+ DbTxn* ptxn = bitdb.TxnBegin();
+ if (!ptxn)
return false;
- vTxn.push_back(ptxn);
+ activeTxn = ptxn;
return true;
}
bool TxnCommit()
{
- if (!pdb)
- return false;
- if (vTxn.empty())
+ if (!pdb || !activeTxn)
return false;
- int ret = vTxn.back()->commit(0);
- vTxn.pop_back();
+ int ret = activeTxn->commit(0);
+ activeTxn = NULL;
return (ret == 0);
}
bool TxnAbort()
{
- if (!pdb)
- return false;
- if (vTxn.empty())
+ if (!pdb || !activeTxn)
return false;
- int ret = vTxn.back()->abort();
- vTxn.pop_back();
+ int ret = activeTxn->abort();
+ activeTxn = NULL;
return (ret == 0);
}
};
-
-
-
-
-
-
-class CTxDB : public CDB
-{
-public:
- CTxDB(const char* pszMode="r+") : CDB("blkindex.dat", pszMode) { }
-private:
- CTxDB(const CTxDB&);
- void operator=(const CTxDB&);
-public:
- bool ReadTxIndex(uint256 hash, CTxIndex& txindex);
- bool UpdateTxIndex(uint256 hash, const CTxIndex& txindex);
- bool AddTxIndex(const CTransaction& tx, const CDiskTxPos& pos, int nHeight);
- bool EraseTxIndex(const CTransaction& tx);
- bool ContainsTx(uint256 hash);
- bool ReadOwnerTxes(uint160 hash160, int nHeight, std::vector<CTransaction>& vtx);
- bool ReadDiskTx(uint256 hash, CTransaction& tx, CTxIndex& txindex);
- bool ReadDiskTx(uint256 hash, CTransaction& tx);
- bool ReadDiskTx(COutPoint outpoint, CTransaction& tx, CTxIndex& txindex);
- bool ReadDiskTx(COutPoint outpoint, CTransaction& tx);
- bool WriteBlockIndex(const CDiskBlockIndex& blockindex);
- bool EraseBlockIndex(uint256 hash);
- bool ReadHashBestChain(uint256& hashBestChain);
- bool WriteHashBestChain(uint256 hashBestChain);
- bool ReadBestInvalidWork(CBigNum& bnBestInvalidWork);
- bool WriteBestInvalidWork(CBigNum bnBestInvalidWork);
- bool LoadBlockIndex();
-};
-
-
-
-
-
-class CAddrDB : public CDB
-{
-public:
- CAddrDB(const char* pszMode="r+") : CDB("addr.dat", pszMode) { }
-private:
- CAddrDB(const CAddrDB&);
- void operator=(const CAddrDB&);
-public:
- bool WriteAddress(const CAddress& addr);
- bool EraseAddress(const CAddress& addr);
- bool LoadAddresses();
-};
-
-bool LoadAddresses();
-
-
-
-class CKeyPool
-{
-public:
- int64 nTime;
- std::vector<unsigned char> vchPubKey;
-
- CKeyPool()
- {
- nTime = GetTime();
- }
-
- CKeyPool(const std::vector<unsigned char>& vchPubKeyIn)
- {
- nTime = GetTime();
- vchPubKey = vchPubKeyIn;
- }
-
- IMPLEMENT_SERIALIZE
- (
- if (!(nType & SER_GETHASH))
- READWRITE(nVersion);
- READWRITE(nTime);
- READWRITE(vchPubKey);
- )
-};
-
-
-
-
-enum DBErrors
+/** Access to the (IP) address database (peers.dat) */
+class CAddrDB
{
- DB_LOAD_OK,
- DB_CORRUPT,
- DB_TOO_NEW,
- DB_LOAD_FAIL,
- DB_NEED_REWRITE
-};
-
-class CWalletDB : public CDB
-{
-public:
- CWalletDB(std::string strFilename, const char* pszMode="r+") : CDB(strFilename.c_str(), pszMode)
- {
- }
private:
- CWalletDB(const CWalletDB&);
- void operator=(const CWalletDB&);
+ boost::filesystem::path pathAddr;
public:
- bool ReadName(const std::string& strAddress, std::string& strName)
- {
- strName = "";
- return Read(std::make_pair(std::string("name"), strAddress), strName);
- }
-
- bool WriteName(const std::string& strAddress, const std::string& strName);
-
- bool EraseName(const std::string& strAddress);
-
- bool ReadTx(uint256 hash, CWalletTx& wtx)
- {
- return Read(std::make_pair(std::string("tx"), hash), wtx);
- }
-
- bool WriteTx(uint256 hash, const CWalletTx& wtx)
- {
- nWalletDBUpdated++;
- return Write(std::make_pair(std::string("tx"), hash), wtx);
- }
-
- bool EraseTx(uint256 hash)
- {
- nWalletDBUpdated++;
- return Erase(std::make_pair(std::string("tx"), hash));
- }
-
- bool ReadKey(const std::vector<unsigned char>& vchPubKey, CPrivKey& vchPrivKey)
- {
- vchPrivKey.clear();
- return Read(std::make_pair(std::string("key"), vchPubKey), vchPrivKey);
- }
-
- bool WriteKey(const std::vector<unsigned char>& vchPubKey, const CPrivKey& vchPrivKey)
- {
- nWalletDBUpdated++;
- return Write(std::make_pair(std::string("key"), vchPubKey), vchPrivKey, false);
- }
-
- bool WriteCryptedKey(const std::vector<unsigned char>& vchPubKey, const std::vector<unsigned char>& vchCryptedSecret, bool fEraseUnencryptedKey = true)
- {
- nWalletDBUpdated++;
- if (!Write(std::make_pair(std::string("ckey"), vchPubKey), vchCryptedSecret, false))
- return false;
- if (fEraseUnencryptedKey)
- {
- Erase(std::make_pair(std::string("key"), vchPubKey));
- Erase(std::make_pair(std::string("wkey"), vchPubKey));
- }
- return true;
- }
-
- bool WriteMasterKey(unsigned int nID, const CMasterKey& kMasterKey)
- {
- nWalletDBUpdated++;
- return Write(std::make_pair(std::string("mkey"), nID), kMasterKey, true);
- }
-
- bool WriteBestBlock(const CBlockLocator& locator)
- {
- nWalletDBUpdated++;
- return Write(std::string("bestblock"), locator);
- }
-
- bool ReadBestBlock(CBlockLocator& locator)
- {
- return Read(std::string("bestblock"), locator);
- }
-
- bool ReadDefaultKey(std::vector<unsigned char>& vchPubKey)
- {
- vchPubKey.clear();
- return Read(std::string("defaultkey"), vchPubKey);
- }
-
- bool WriteDefaultKey(const std::vector<unsigned char>& vchPubKey)
- {
- nWalletDBUpdated++;
- return Write(std::string("defaultkey"), vchPubKey);
- }
-
- bool ReadPool(int64 nPool, CKeyPool& keypool)
- {
- return Read(std::make_pair(std::string("pool"), nPool), keypool);
- }
-
- bool WritePool(int64 nPool, const CKeyPool& keypool)
- {
- nWalletDBUpdated++;
- return Write(std::make_pair(std::string("pool"), nPool), keypool);
- }
-
- bool ErasePool(int64 nPool)
- {
- nWalletDBUpdated++;
- return Erase(std::make_pair(std::string("pool"), nPool));
- }
-
- template<typename T>
- bool ReadSetting(const std::string& strKey, T& value)
- {
- return Read(std::make_pair(std::string("setting"), strKey), value);
- }
-
- template<typename T>
- bool WriteSetting(const std::string& strKey, const T& value)
- {
- nWalletDBUpdated++;
- return Write(std::make_pair(std::string("setting"), strKey), value);
- }
-
- bool ReadAccount(const std::string& strAccount, CAccount& account);
- bool WriteAccount(const std::string& strAccount, const CAccount& account);
- bool WriteAccountingEntry(const CAccountingEntry& acentry);
- int64 GetAccountCreditDebit(const std::string& strAccount);
- void ListAccountCreditDebit(const std::string& strAccount, std::list<CAccountingEntry>& acentries);
-
- int LoadWallet(CWallet* pwallet);
+ CAddrDB();
+ bool Write(const CAddrMan& addr);
+ bool Read(CAddrMan& addr);
};
-#endif
+#endif // BITCOIN_DB_H
git://git.novaco.in / novacoin.git / blobdiff