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689 lines
19 KiB
689 lines
19 KiB
// Copyright (c) 2009 Satoshi Nakamoto
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// Distributed under the MIT/X11 software license, see the accompanying
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// file license.txt or http://www.opensource.org/licenses/mit-license.php.
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#include "headers.h"
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void ThreadFlushWalletDB(void* parg);
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unsigned int nWalletDBUpdated;
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//
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// CDB
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//
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static CCriticalSection cs_db;
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static bool fDbEnvInit = false;
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DbEnv dbenv(0);
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static map<string, int> mapFileUseCount;
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class CDBInit
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{
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public:
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CDBInit()
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{
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}
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~CDBInit()
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{
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if (fDbEnvInit)
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{
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dbenv.close(0);
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fDbEnvInit = false;
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}
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}
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}
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instance_of_cdbinit;
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CDB::CDB(const char* pszFile, const char* pszMode, bool fTxn) : pdb(NULL)
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{
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int ret;
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if (pszFile == NULL)
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return;
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bool fCreate = strchr(pszMode, 'c');
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bool fReadOnly = (!strchr(pszMode, '+') && !strchr(pszMode, 'w'));
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unsigned int nFlags = DB_THREAD;
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if (fCreate)
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nFlags |= DB_CREATE;
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else if (fReadOnly)
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nFlags |= DB_RDONLY;
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if (!fReadOnly || fTxn)
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nFlags |= DB_AUTO_COMMIT;
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CRITICAL_BLOCK(cs_db)
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{
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if (!fDbEnvInit)
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{
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if (fShutdown)
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return;
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string strDataDir = GetDataDir();
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string strLogDir = strDataDir + "/database";
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_mkdir(strLogDir.c_str());
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string strErrorFile = strDataDir + "/db.log";
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printf("dbenv.open strLogDir=%s strErrorFile=%s\n", strLogDir.c_str(), strErrorFile.c_str());
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dbenv.set_lg_dir(strLogDir.c_str());
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dbenv.set_lg_max(10000000);
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dbenv.set_lk_max_locks(10000);
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dbenv.set_lk_max_objects(10000);
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dbenv.set_errfile(fopen(strErrorFile.c_str(), "a")); /// debug
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///dbenv.log_set_config(DB_LOG_AUTO_REMOVE, 1); /// causes corruption
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ret = dbenv.open(strDataDir.c_str(),
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DB_CREATE |
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DB_INIT_LOCK |
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DB_INIT_LOG |
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DB_INIT_MPOOL |
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DB_INIT_TXN |
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DB_THREAD |
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DB_PRIVATE |
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DB_RECOVER,
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0);
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if (ret > 0)
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throw runtime_error(strprintf("CDB() : error %d opening database environment\n", ret));
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fDbEnvInit = true;
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}
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strFile = pszFile;
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++mapFileUseCount[strFile];
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}
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pdb = new Db(&dbenv, 0);
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ret = pdb->open(NULL, // Txn pointer
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pszFile, // Filename
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"main", // Logical db name
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DB_BTREE, // Database type
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nFlags, // Flags
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0);
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if (ret > 0)
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{
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delete pdb;
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pdb = NULL;
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CRITICAL_BLOCK(cs_db)
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--mapFileUseCount[strFile];
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strFile = "";
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throw runtime_error(strprintf("CDB() : can't open database file %s, error %d\n", pszFile, ret));
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}
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if (fCreate && !Exists(string("version")))
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WriteVersion(VERSION);
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RandAddSeed();
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}
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void CDB::Close()
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{
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if (!pdb)
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return;
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if (!vTxn.empty())
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vTxn.front()->abort();
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vTxn.clear();
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pdb->close(0);
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delete pdb;
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pdb = NULL;
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dbenv.txn_checkpoint(0, 0, 0);
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CRITICAL_BLOCK(cs_db)
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--mapFileUseCount[strFile];
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RandAddSeed();
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}
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void DBFlush(bool fShutdown)
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{
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// Flush log data to the actual data file
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// on all files that are not in use
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printf("DBFlush(%s)\n", fShutdown ? "true" : "false");
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if (!fDbEnvInit)
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return;
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CRITICAL_BLOCK(cs_db)
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{
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dbenv.txn_checkpoint(0, 0, 0);
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map<string, int>::iterator mi = mapFileUseCount.begin();
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while (mi != mapFileUseCount.end())
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{
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string strFile = (*mi).first;
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int nRefCount = (*mi).second;
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if (nRefCount == 0)
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{
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dbenv.lsn_reset(strFile.c_str(), 0);
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mapFileUseCount.erase(mi++);
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}
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else
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mi++;
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}
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if (fShutdown)
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{
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char** listp;
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if (mapFileUseCount.empty())
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dbenv.log_archive(&listp, DB_ARCH_REMOVE);
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dbenv.close(0);
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fDbEnvInit = false;
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}
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}
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}
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//
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// CTxDB
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//
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bool CTxDB::ReadTxIndex(uint256 hash, CTxIndex& txindex)
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{
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assert(!fClient);
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txindex.SetNull();
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return Read(make_pair(string("tx"), hash), txindex);
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}
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bool CTxDB::UpdateTxIndex(uint256 hash, const CTxIndex& txindex)
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{
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assert(!fClient);
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return Write(make_pair(string("tx"), hash), txindex);
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}
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bool CTxDB::AddTxIndex(const CTransaction& tx, const CDiskTxPos& pos, int nHeight)
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{
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assert(!fClient);
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// Add to tx index
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uint256 hash = tx.GetHash();
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CTxIndex txindex(pos, tx.vout.size());
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return Write(make_pair(string("tx"), hash), txindex);
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}
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bool CTxDB::EraseTxIndex(const CTransaction& tx)
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{
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assert(!fClient);
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uint256 hash = tx.GetHash();
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return Erase(make_pair(string("tx"), hash));
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}
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bool CTxDB::ContainsTx(uint256 hash)
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{
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assert(!fClient);
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return Exists(make_pair(string("tx"), hash));
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}
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bool CTxDB::ReadOwnerTxes(uint160 hash160, int nMinHeight, vector<CTransaction>& vtx)
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{
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assert(!fClient);
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vtx.clear();
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// Get cursor
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Dbc* pcursor = GetCursor();
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if (!pcursor)
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return false;
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unsigned int fFlags = DB_SET_RANGE;
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loop
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{
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// Read next record
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CDataStream ssKey;
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if (fFlags == DB_SET_RANGE)
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ssKey << string("owner") << hash160 << CDiskTxPos(0, 0, 0);
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CDataStream ssValue;
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int ret = ReadAtCursor(pcursor, ssKey, ssValue, fFlags);
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fFlags = DB_NEXT;
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if (ret == DB_NOTFOUND)
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break;
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else if (ret != 0)
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return false;
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// Unserialize
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string strType;
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uint160 hashItem;
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CDiskTxPos pos;
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ssKey >> strType >> hashItem >> pos;
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int nItemHeight;
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ssValue >> nItemHeight;
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// Read transaction
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if (strType != "owner" || hashItem != hash160)
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break;
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if (nItemHeight >= nMinHeight)
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{
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vtx.resize(vtx.size()+1);
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if (!vtx.back().ReadFromDisk(pos))
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return false;
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}
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}
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return true;
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}
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bool CTxDB::ReadDiskTx(uint256 hash, CTransaction& tx, CTxIndex& txindex)
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{
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assert(!fClient);
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tx.SetNull();
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if (!ReadTxIndex(hash, txindex))
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return false;
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return (tx.ReadFromDisk(txindex.pos));
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}
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bool CTxDB::ReadDiskTx(uint256 hash, CTransaction& tx)
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{
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CTxIndex txindex;
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return ReadDiskTx(hash, tx, txindex);
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}
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bool CTxDB::ReadDiskTx(COutPoint outpoint, CTransaction& tx, CTxIndex& txindex)
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{
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return ReadDiskTx(outpoint.hash, tx, txindex);
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}
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bool CTxDB::ReadDiskTx(COutPoint outpoint, CTransaction& tx)
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{
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CTxIndex txindex;
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return ReadDiskTx(outpoint.hash, tx, txindex);
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}
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bool CTxDB::WriteBlockIndex(const CDiskBlockIndex& blockindex)
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{
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return Write(make_pair(string("blockindex"), blockindex.GetBlockHash()), blockindex);
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}
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bool CTxDB::EraseBlockIndex(uint256 hash)
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{
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return Erase(make_pair(string("blockindex"), hash));
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}
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bool CTxDB::ReadHashBestChain(uint256& hashBestChain)
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{
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return Read(string("hashBestChain"), hashBestChain);
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}
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bool CTxDB::WriteHashBestChain(uint256 hashBestChain)
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{
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return Write(string("hashBestChain"), hashBestChain);
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}
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CBlockIndex* InsertBlockIndex(uint256 hash)
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{
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if (hash == 0)
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return NULL;
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// Return existing
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map<uint256, CBlockIndex*>::iterator mi = mapBlockIndex.find(hash);
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if (mi != mapBlockIndex.end())
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return (*mi).second;
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// Create new
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CBlockIndex* pindexNew = new CBlockIndex();
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if (!pindexNew)
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throw runtime_error("LoadBlockIndex() : new CBlockIndex failed");
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mi = mapBlockIndex.insert(make_pair(hash, pindexNew)).first;
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pindexNew->phashBlock = &((*mi).first);
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return pindexNew;
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}
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bool CTxDB::LoadBlockIndex()
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{
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// Get cursor
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Dbc* pcursor = GetCursor();
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if (!pcursor)
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return false;
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unsigned int fFlags = DB_SET_RANGE;
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loop
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{
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// Read next record
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CDataStream ssKey;
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if (fFlags == DB_SET_RANGE)
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ssKey << make_pair(string("blockindex"), uint256(0));
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CDataStream ssValue;
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int ret = ReadAtCursor(pcursor, ssKey, ssValue, fFlags);
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fFlags = DB_NEXT;
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if (ret == DB_NOTFOUND)
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break;
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else if (ret != 0)
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return false;
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// Unserialize
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string strType;
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ssKey >> strType;
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if (strType == "blockindex")
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{
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CDiskBlockIndex diskindex;
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ssValue >> diskindex;
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// Construct block index object
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CBlockIndex* pindexNew = InsertBlockIndex(diskindex.GetBlockHash());
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pindexNew->pprev = InsertBlockIndex(diskindex.hashPrev);
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pindexNew->pnext = InsertBlockIndex(diskindex.hashNext);
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pindexNew->nFile = diskindex.nFile;
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pindexNew->nBlockPos = diskindex.nBlockPos;
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pindexNew->nHeight = diskindex.nHeight;
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pindexNew->nVersion = diskindex.nVersion;
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pindexNew->hashMerkleRoot = diskindex.hashMerkleRoot;
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pindexNew->nTime = diskindex.nTime;
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pindexNew->nBits = diskindex.nBits;
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pindexNew->nNonce = diskindex.nNonce;
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// Watch for genesis block and best block
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if (pindexGenesisBlock == NULL && diskindex.GetBlockHash() == hashGenesisBlock)
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pindexGenesisBlock = pindexNew;
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}
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else
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{
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break;
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}
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}
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if (!ReadHashBestChain(hashBestChain))
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{
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if (pindexGenesisBlock == NULL)
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return true;
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return error("CTxDB::LoadBlockIndex() : hashBestChain not found");
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}
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if (!mapBlockIndex.count(hashBestChain))
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return error("CTxDB::LoadBlockIndex() : blockindex for hashBestChain not found");
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pindexBest = mapBlockIndex[hashBestChain];
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nBestHeight = pindexBest->nHeight;
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printf("LoadBlockIndex(): hashBestChain=%s height=%d\n", hashBestChain.ToString().substr(0,14).c_str(), nBestHeight);
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return true;
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}
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//
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// CAddrDB
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//
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bool CAddrDB::WriteAddress(const CAddress& addr)
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{
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return Write(make_pair(string("addr"), addr.GetKey()), addr);
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}
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bool CAddrDB::LoadAddresses()
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{
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CRITICAL_BLOCK(cs_mapAddresses)
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{
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// Load user provided addresses
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CAutoFile filein = fopen("addr.txt", "rt");
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if (filein)
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{
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try
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{
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char psz[1000];
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while (fgets(psz, sizeof(psz), filein))
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{
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CAddress addr(psz, NODE_NETWORK);
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if (addr.IsValid())
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AddAddress(*this, addr);
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}
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}
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catch (...) { }
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}
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// Get cursor
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Dbc* pcursor = GetCursor();
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if (!pcursor)
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return false;
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loop
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{
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// Read next record
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CDataStream ssKey;
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CDataStream ssValue;
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int ret = ReadAtCursor(pcursor, ssKey, ssValue);
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if (ret == DB_NOTFOUND)
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break;
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else if (ret != 0)
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return false;
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// Unserialize
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string strType;
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ssKey >> strType;
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if (strType == "addr")
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{
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CAddress addr;
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ssValue >> addr;
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mapAddresses.insert(make_pair(addr.GetKey(), addr));
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}
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}
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printf("Loaded %d addresses\n", mapAddresses.size());
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// Fix for possible bug that manifests in mapAddresses.count in irc.cpp,
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// just need to call count here and it doesn't happen there. The bug was the
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// pack pragma in irc.cpp and has been fixed, but I'm not in a hurry to delete this.
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mapAddresses.count(vector<unsigned char>(18));
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}
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return true;
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}
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bool LoadAddresses()
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{
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return CAddrDB("cr+").LoadAddresses();
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}
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//
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// CReviewDB
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//
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bool CReviewDB::ReadReviews(uint256 hash, vector<CReview>& vReviews)
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{
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vReviews.size(); // msvc workaround, just need to do anything with vReviews
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return Read(make_pair(string("reviews"), hash), vReviews);
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}
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bool CReviewDB::WriteReviews(uint256 hash, const vector<CReview>& vReviews)
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{
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return Write(make_pair(string("reviews"), hash), vReviews);
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}
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//
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// CWalletDB
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//
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bool CWalletDB::LoadWallet(vector<unsigned char>& vchDefaultKeyRet)
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{
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vchDefaultKeyRet.clear();
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//// todo: shouldn't we catch exceptions and try to recover and continue?
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CRITICAL_BLOCK(cs_mapKeys)
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CRITICAL_BLOCK(cs_mapWallet)
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{
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// Get cursor
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Dbc* pcursor = GetCursor();
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if (!pcursor)
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return false;
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loop
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{
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// Read next record
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CDataStream ssKey;
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CDataStream ssValue;
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int ret = ReadAtCursor(pcursor, ssKey, ssValue);
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if (ret == DB_NOTFOUND)
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break;
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else if (ret != 0)
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return false;
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// Unserialize
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// Taking advantage of the fact that pair serialization
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// is just the two items serialized one after the other
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string strType;
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ssKey >> strType;
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if (strType == "name")
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{
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string strAddress;
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ssKey >> strAddress;
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ssValue >> mapAddressBook[strAddress];
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}
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else if (strType == "tx")
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{
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uint256 hash;
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ssKey >> hash;
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CWalletTx& wtx = mapWallet[hash];
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ssValue >> wtx;
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if (wtx.GetHash() != hash)
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printf("Error in wallet.dat, hash mismatch\n");
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//// debug print
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//printf("LoadWallet %s\n", wtx.GetHash().ToString().c_str());
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//printf(" %12I64d %s %s %s\n",
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// wtx.vout[0].nValue,
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// DateTimeStr(wtx.nTime).c_str(),
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// wtx.hashBlock.ToString().substr(0,14).c_str(),
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// wtx.mapValue["message"].c_str());
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}
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else if (strType == "key")
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{
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vector<unsigned char> vchPubKey;
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ssKey >> vchPubKey;
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CPrivKey vchPrivKey;
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ssValue >> vchPrivKey;
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mapKeys[vchPubKey] = vchPrivKey;
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mapPubKeys[Hash160(vchPubKey)] = vchPubKey;
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}
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else if (strType == "defaultkey")
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{
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ssValue >> vchDefaultKeyRet;
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}
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else if (strType == "setting")
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{
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string strKey;
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ssKey >> strKey;
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// Menu state
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if (strKey == "fShowGenerated") ssValue >> fShowGenerated;
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if (strKey == "fGenerateBitcoins") ssValue >> fGenerateBitcoins;
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// Options
|
|
if (strKey == "nTransactionFee") ssValue >> nTransactionFee;
|
|
if (strKey == "addrIncoming") ssValue >> addrIncoming;
|
|
if (strKey == "fLimitProcessors") ssValue >> fLimitProcessors;
|
|
if (strKey == "nLimitProcessors") ssValue >> nLimitProcessors;
|
|
if (strKey == "fMinimizeToTray") ssValue >> fMinimizeToTray;
|
|
if (strKey == "fMinimizeOnClose") ssValue >> fMinimizeOnClose;
|
|
if (strKey == "fUseProxy") ssValue >> fUseProxy;
|
|
if (strKey == "addrProxy") ssValue >> addrProxy;
|
|
|
|
}
|
|
}
|
|
}
|
|
|
|
printf("fShowGenerated = %d\n", fShowGenerated);
|
|
printf("fGenerateBitcoins = %d\n", fGenerateBitcoins);
|
|
printf("nTransactionFee = %"PRI64d"\n", nTransactionFee);
|
|
printf("addrIncoming = %s\n", addrIncoming.ToString().c_str());
|
|
printf("fMinimizeToTray = %d\n", fMinimizeToTray);
|
|
printf("fMinimizeOnClose = %d\n", fMinimizeOnClose);
|
|
printf("fUseProxy = %d\n", fUseProxy);
|
|
printf("addrProxy = %s\n", addrProxy.ToString().c_str());
|
|
|
|
|
|
// The transaction fee setting won't be needed for many years to come.
|
|
// Setting it to zero here in case they set it to something in an earlier version.
|
|
if (nTransactionFee != 0)
|
|
{
|
|
nTransactionFee = 0;
|
|
WriteSetting("nTransactionFee", nTransactionFee);
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
bool LoadWallet(bool& fFirstRunRet)
|
|
{
|
|
fFirstRunRet = false;
|
|
vector<unsigned char> vchDefaultKey;
|
|
if (!CWalletDB("cr").LoadWallet(vchDefaultKey))
|
|
return false;
|
|
fFirstRunRet = vchDefaultKey.empty();
|
|
|
|
if (mapKeys.count(vchDefaultKey))
|
|
{
|
|
// Set keyUser
|
|
keyUser.SetPubKey(vchDefaultKey);
|
|
keyUser.SetPrivKey(mapKeys[vchDefaultKey]);
|
|
}
|
|
else
|
|
{
|
|
// Create new keyUser and set as default key
|
|
RandAddSeedPerfmon();
|
|
keyUser.MakeNewKey();
|
|
if (!AddKey(keyUser))
|
|
return false;
|
|
if (!SetAddressBookName(PubKeyToAddress(keyUser.GetPubKey()), "Your Address"))
|
|
return false;
|
|
CWalletDB().WriteDefaultKey(keyUser.GetPubKey());
|
|
}
|
|
|
|
_beginthread(ThreadFlushWalletDB, 0, NULL);
|
|
return true;
|
|
}
|
|
|
|
void ThreadFlushWalletDB(void* parg)
|
|
{
|
|
static bool fOneThread;
|
|
if (fOneThread)
|
|
return;
|
|
fOneThread = true;
|
|
|
|
unsigned int nLastSeen = nWalletDBUpdated;
|
|
unsigned int nLastFlushed = nWalletDBUpdated;
|
|
int64 nLastWalletUpdate = GetTime();
|
|
while (!fShutdown)
|
|
{
|
|
Sleep(500);
|
|
|
|
if (nLastSeen != nWalletDBUpdated)
|
|
{
|
|
nLastSeen = nWalletDBUpdated;
|
|
nLastWalletUpdate = GetTime();
|
|
}
|
|
|
|
if (nLastFlushed != nWalletDBUpdated && nLastWalletUpdate < GetTime() - 1)
|
|
{
|
|
TRY_CRITICAL_BLOCK(cs_db)
|
|
{
|
|
string strFile = "wallet.dat";
|
|
map<string, int>::iterator mi = mapFileUseCount.find(strFile);
|
|
if (mi != mapFileUseCount.end())
|
|
{
|
|
int nRefCount = (*mi).second;
|
|
if (nRefCount == 0 && !fShutdown)
|
|
{
|
|
// Flush wallet.dat so it's self contained
|
|
nLastFlushed = nWalletDBUpdated;
|
|
int64 nStart = GetTimeMillis();
|
|
dbenv.txn_checkpoint(0, 0, 0);
|
|
dbenv.lsn_reset(strFile.c_str(), 0);
|
|
printf("Flushed wallet.dat %"PRI64d"ms\n", GetTimeMillis() - nStart);
|
|
mapFileUseCount.erase(mi++);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|