Version 1.1.0.0 update

src/db.h

@@ -1,7 +1,5 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
 // Copyright (c) 2009-2012 The Bitcoin developers
-// Copyright (c) 2011-2012 Litecoin Developers
-// Copyright (c) 2013 CasinoCoin 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
@@ -19,25 +17,23 @@ class CAddress;
 class CAddrMan;
 class CBlockLocator;
 class CDiskBlockIndex;
-class CDiskTxPos;
 class CMasterKey;
 class COutPoint;
-class CTxIndex;
 class CWallet;
 class CWalletTx;
 
 extern unsigned int nWalletDBUpdated;
 
-void ThreadFlushWalletDB(void* parg);
+void ThreadFlushWalletDB(const std::string& strWalletFile);
 bool BackupWallet(const CWallet& wallet, const std::string& strDest);
 
 
 class CDBEnv
 {
 private:
-    bool fDetachDB;
     bool fDbEnvInit;
-    boost::filesystem::path pathEnv;
+    bool fMockDb;
+    boost::filesystem::path path;
 
     void EnvShutdown();
 
@@ -49,14 +45,34 @@ public:
 
     CDBEnv();
     ~CDBEnv();
-    bool Open(boost::filesystem::path pathEnv_);
+    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(const boost::filesystem::path &path);
     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)
     {
@@ -83,6 +99,7 @@ protected:
     explicit CDB(const char* pszFile, const char* pszMode="r+");
     ~CDB() { Close(); }
 public:
+    void Flush();
     void Close();
 private:
     CDB(const CDB&);
@@ -295,36 +312,6 @@ public:
 
 
 
-/** Access to the transaction database (blkindex.dat) */
-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 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 ReadHashBestChain(uint256& hashBestChain);
-    bool WriteHashBestChain(uint256 hashBestChain);
-    bool ReadBestInvalidWork(CBigNum& bnBestInvalidWork);
-    bool WriteBestInvalidWork(CBigNum bnBestInvalidWork);
-    bool LoadBlockIndex();
-private:
-    bool LoadBlockIndexGuts();
-};
-
-
-
 
 /** Access to the (IP) address database (peers.dat) */
 class CAddrDB