Initial upload
This commit is contained in:
TrianglesDev
+976
@@ -0,0 +1,976 @@
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// Copyright (c) 2009-2010 Satoshi Nakamoto
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// Copyright (c) 2009-2012 The Bitcoin developers
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// Distributed under the MIT/X11 software license, see the accompanying
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// file COPYING or http://www.opensource.org/licenses/mit-license.php.
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#include "db.h"
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#include "net.h"
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#include "checkpoints.h"
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#include "util.h"
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#include "main.h"
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#include "kernel.h"
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#include <boost/version.hpp>
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#include <boost/filesystem.hpp>
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#include <boost/filesystem/fstream.hpp>
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#ifndef WIN32
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#include "sys/stat.h"
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#endif
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using namespace std;
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using namespace boost;
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unsigned int nWalletDBUpdated;
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//
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// CDB
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//
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CDBEnv bitdb;
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void CDBEnv::EnvShutdown()
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{
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if (!fDbEnvInit)
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return;
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fDbEnvInit = false;
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int ret = dbenv.close(0);
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if (ret != 0)
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printf("EnvShutdown exception: %s (%d)\n", DbEnv::strerror(ret), ret);
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if (!fMockDb)
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DbEnv(0).remove(strPath.c_str(), 0);
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}
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CDBEnv::CDBEnv() : dbenv(DB_CXX_NO_EXCEPTIONS)
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{
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fDbEnvInit = false;
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fMockDb = false;
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}
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CDBEnv::~CDBEnv()
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{
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EnvShutdown();
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}
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void CDBEnv::Close()
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{
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EnvShutdown();
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}
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bool CDBEnv::Open(boost::filesystem::path pathEnv_)
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{
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if (fDbEnvInit)
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return true;
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if (fShutdown)
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return false;
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pathEnv = pathEnv_;
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filesystem::path pathDataDir = pathEnv;
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strPath = pathDataDir.string();
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filesystem::path pathLogDir = pathDataDir / "database";
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filesystem::create_directory(pathLogDir);
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filesystem::path pathErrorFile = pathDataDir / "db.log";
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printf("dbenv.open LogDir=%s ErrorFile=%s\n", pathLogDir.string().c_str(), pathErrorFile.string().c_str());
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unsigned int nEnvFlags = 0;
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if (GetBoolArg("-privdb", true))
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nEnvFlags |= DB_PRIVATE;
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int nDbCache = GetArg("-dbcache", 25);
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dbenv.set_lg_dir(pathLogDir.string().c_str());
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dbenv.set_cachesize(nDbCache / 1024, (nDbCache % 1024)*1048576, 1);
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dbenv.set_lg_bsize(1048576);
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dbenv.set_lg_max(10485760);
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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(pathErrorFile.string().c_str(), "a")); /// debug
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dbenv.set_flags(DB_AUTO_COMMIT, 1);
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dbenv.set_flags(DB_TXN_WRITE_NOSYNC, 1);
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// dbenv.log_set_config(DB_LOG_AUTO_REMOVE, 1);
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int ret = dbenv.open(strPath.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_RECOVER |
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nEnvFlags,
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S_IRUSR | S_IWUSR);
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if (ret != 0)
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return error("CDB() : error %s (%d) opening database environment", DbEnv::strerror(ret), ret);
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fDbEnvInit = true;
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fMockDb = false;
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return true;
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}
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void CDBEnv::MakeMock()
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{
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if (fDbEnvInit)
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throw runtime_error("CDBEnv::MakeMock(): already initialized");
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if (fShutdown)
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throw runtime_error("CDBEnv::MakeMock(): during shutdown");
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printf("CDBEnv::MakeMock()\n");
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dbenv.set_cachesize(1, 0, 1);
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dbenv.set_lg_bsize(10485760*4);
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dbenv.set_lg_max(10485760);
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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_flags(DB_AUTO_COMMIT, 1);
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// dbenv.log_set_config(DB_LOG_IN_MEMORY, 1);
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int ret = dbenv.open(NULL,
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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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S_IRUSR | S_IWUSR);
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if (ret > 0)
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throw runtime_error(strprintf("CDBEnv::MakeMock(): error %d opening database environment", ret));
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fDbEnvInit = true;
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fMockDb = true;
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}
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CDBEnv::VerifyResult CDBEnv::Verify(std::string strFile, bool (*recoverFunc)(CDBEnv& dbenv, std::string strFile))
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{
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LOCK(cs_db);
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assert(mapFileUseCount.count(strFile) == 0);
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Db db(&dbenv, 0);
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int result = db.verify(strFile.c_str(), NULL, NULL, 0);
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if (result == 0)
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return VERIFY_OK;
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else if (recoverFunc == NULL)
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return RECOVER_FAIL;
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// Try to recover:
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bool fRecovered = (*recoverFunc)(*this, strFile);
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return (fRecovered ? RECOVER_OK : RECOVER_FAIL);
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}
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bool CDBEnv::Salvage(std::string strFile, bool fAggressive,
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std::vector<CDBEnv::KeyValPair >& vResult)
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{
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LOCK(cs_db);
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assert(mapFileUseCount.count(strFile) == 0);
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u_int32_t flags = DB_SALVAGE;
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if (fAggressive) flags |= DB_AGGRESSIVE;
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stringstream strDump;
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Db db(&dbenv, 0);
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int result = db.verify(strFile.c_str(), NULL, &strDump, flags);
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if (result != 0)
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{
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printf("ERROR: db salvage failed\n");
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return false;
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}
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// Format of bdb dump is ascii lines:
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// header lines...
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// HEADER=END
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// hexadecimal key
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// hexadecimal value
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// ... repeated
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// DATA=END
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string strLine;
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while (!strDump.eof() && strLine != "HEADER=END")
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getline(strDump, strLine); // Skip past header
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std::string keyHex, valueHex;
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while (!strDump.eof() && keyHex != "DATA=END")
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{
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getline(strDump, keyHex);
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if (keyHex != "DATA_END")
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{
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getline(strDump, valueHex);
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vResult.push_back(make_pair(ParseHex(keyHex),ParseHex(valueHex)));
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}
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}
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return (result == 0);
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}
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void CDBEnv::CheckpointLSN(std::string strFile)
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{
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dbenv.txn_checkpoint(0, 0, 0);
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if (fMockDb)
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return;
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dbenv.lsn_reset(strFile.c_str(), 0);
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}
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CDB::CDB(const char *pszFile, const char* pszMode) :
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pdb(NULL), activeTxn(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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fReadOnly = (!strchr(pszMode, '+') && !strchr(pszMode, 'w'));
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bool fCreate = strchr(pszMode, 'c');
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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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{
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LOCK(bitdb.cs_db);
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if (!bitdb.Open(GetDataDir()))
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throw runtime_error("env open failed");
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strFile = pszFile;
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++bitdb.mapFileUseCount[strFile];
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pdb = bitdb.mapDb[strFile];
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if (pdb == NULL)
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{
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pdb = new Db(&bitdb.dbenv, 0);
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bool fMockDb = bitdb.IsMock();
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if (fMockDb)
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{
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DbMpoolFile*mpf = pdb->get_mpf();
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ret = mpf->set_flags(DB_MPOOL_NOFILE, 1);
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if (ret != 0)
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throw runtime_error(strprintf("CDB() : failed to configure for no temp file backing for database %s", pszFile));
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}
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ret = pdb->open(NULL, // Txn pointer
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fMockDb ? NULL : 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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--bitdb.mapFileUseCount[strFile];
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strFile = "";
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throw runtime_error(strprintf("CDB() : can't open database file %s, error %d", pszFile, ret));
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}
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if (fCreate && !Exists(string("version")))
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{
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bool fTmp = fReadOnly;
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fReadOnly = false;
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WriteVersion(CLIENT_VERSION);
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fReadOnly = fTmp;
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}
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bitdb.mapDb[strFile] = pdb;
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}
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}
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}
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static bool IsChainFile(std::string strFile)
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{
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if (strFile == "blkindex.dat")
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return true;
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return false;
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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 (activeTxn)
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activeTxn->abort();
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activeTxn = NULL;
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pdb = NULL;
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// Flush database activity from memory pool to disk log
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unsigned int nMinutes = 0;
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if (fReadOnly)
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nMinutes = 1;
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if (IsChainFile(strFile))
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nMinutes = 2;
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if (IsChainFile(strFile) && IsInitialBlockDownload())
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nMinutes = 5;
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bitdb.dbenv.txn_checkpoint(nMinutes ? GetArg("-dblogsize", 100)*1024 : 0, nMinutes, 0);
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{
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LOCK(bitdb.cs_db);
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--bitdb.mapFileUseCount[strFile];
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}
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}
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void CDBEnv::CloseDb(const string& strFile)
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{
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{
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LOCK(cs_db);
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if (mapDb[strFile] != NULL)
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{
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// Close the database handle
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Db* pdb = mapDb[strFile];
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pdb->close(0);
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delete pdb;
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mapDb[strFile] = NULL;
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}
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}
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}
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bool CDBEnv::RemoveDb(const string& strFile)
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{
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this->CloseDb(strFile);
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LOCK(cs_db);
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int rc = dbenv.dbremove(NULL, strFile.c_str(), NULL, DB_AUTO_COMMIT);
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return (rc == 0);
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}
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bool CDB::Rewrite(const string& strFile, const char* pszSkip)
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{
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while (!fShutdown)
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{
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{
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LOCK(bitdb.cs_db);
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if (!bitdb.mapFileUseCount.count(strFile) || bitdb.mapFileUseCount[strFile] == 0)
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{
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// Flush log data to the dat file
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bitdb.CloseDb(strFile);
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bitdb.CheckpointLSN(strFile);
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bitdb.mapFileUseCount.erase(strFile);
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bool fSuccess = true;
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printf("Rewriting %s...\n", strFile.c_str());
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string strFileRes = strFile + ".rewrite";
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{ // surround usage of db with extra {}
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CDB db(strFile.c_str(), "r");
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Db* pdbCopy = new Db(&bitdb.dbenv, 0);
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int ret = pdbCopy->open(NULL, // Txn pointer
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strFileRes.c_str(), // Filename
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"main", // Logical db name
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DB_BTREE, // Database type
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DB_CREATE, // Flags
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0);
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if (ret > 0)
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{
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printf("Cannot create database file %s\n", strFileRes.c_str());
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fSuccess = false;
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}
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Dbc* pcursor = db.GetCursor();
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if (pcursor)
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while (fSuccess)
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{
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CDataStream ssKey(SER_DISK, CLIENT_VERSION);
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CDataStream ssValue(SER_DISK, CLIENT_VERSION);
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int ret = db.ReadAtCursor(pcursor, ssKey, ssValue, DB_NEXT);
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if (ret == DB_NOTFOUND)
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{
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pcursor->close();
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break;
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}
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else if (ret != 0)
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{
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pcursor->close();
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fSuccess = false;
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break;
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}
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if (pszSkip &&
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strncmp(&ssKey[0], pszSkip, std::min(ssKey.size(), strlen(pszSkip))) == 0)
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continue;
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if (strncmp(&ssKey[0], "\x07version", 8) == 0)
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{
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// Update version:
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ssValue.clear();
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ssValue << CLIENT_VERSION;
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}
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Dbt datKey(&ssKey[0], ssKey.size());
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Dbt datValue(&ssValue[0], ssValue.size());
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int ret2 = pdbCopy->put(NULL, &datKey, &datValue, DB_NOOVERWRITE);
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if (ret2 > 0)
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fSuccess = false;
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}
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if (fSuccess)
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{
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db.Close();
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bitdb.CloseDb(strFile);
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if (pdbCopy->close(0))
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fSuccess = false;
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delete pdbCopy;
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}
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}
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if (fSuccess)
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{
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Db dbA(&bitdb.dbenv, 0);
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if (dbA.remove(strFile.c_str(), NULL, 0))
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fSuccess = false;
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Db dbB(&bitdb.dbenv, 0);
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if (dbB.rename(strFileRes.c_str(), NULL, strFile.c_str(), 0))
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fSuccess = false;
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}
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if (!fSuccess)
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printf("Rewriting of %s FAILED!\n", strFileRes.c_str());
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return fSuccess;
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}
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}
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Sleep(100);
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}
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return false;
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}
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||||
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void CDBEnv::Flush(bool fShutdown)
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{
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int64 nStart = GetTimeMillis();
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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("Flush(%s)%s\n", fShutdown ? "true" : "false", fDbEnvInit ? "" : " db not started");
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if (!fDbEnvInit)
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return;
|
||||
{
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LOCK(cs_db);
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map<string, int>::iterator mi = mapFileUseCount.begin();
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||||
while (mi != mapFileUseCount.end())
|
||||
{
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||||
string strFile = (*mi).first;
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int nRefCount = (*mi).second;
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printf("%s refcount=%d\n", strFile.c_str(), nRefCount);
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if (nRefCount == 0)
|
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{
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// Move log data to the dat file
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||||
CloseDb(strFile);
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printf("%s checkpoint\n", strFile.c_str());
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dbenv.txn_checkpoint(0, 0, 0);
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if (!IsChainFile(strFile) || fDetachDB) {
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printf("%s detach\n", strFile.c_str());
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if (!fMockDb)
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dbenv.lsn_reset(strFile.c_str(), 0);
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}
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printf("%s closed\n", strFile.c_str());
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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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||||
printf("DBFlush(%s)%s ended %15"PRI64d"ms\n", fShutdown ? "true" : "false", fDbEnvInit ? "" : " db not started", GetTimeMillis() - nStart);
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||||
if (fShutdown)
|
||||
{
|
||||
char** listp;
|
||||
if (mapFileUseCount.empty())
|
||||
{
|
||||
dbenv.log_archive(&listp, DB_ARCH_REMOVE);
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||||
Close();
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
//
|
||||
// CTxDB
|
||||
//
|
||||
|
||||
bool CTxDB::ReadTxIndex(uint256 hash, CTxIndex& txindex)
|
||||
{
|
||||
assert(!fClient);
|
||||
txindex.SetNull();
|
||||
return Read(make_pair(string("tx"), hash), txindex);
|
||||
}
|
||||
|
||||
bool CTxDB::UpdateTxIndex(uint256 hash, const CTxIndex& txindex)
|
||||
{
|
||||
assert(!fClient);
|
||||
return Write(make_pair(string("tx"), hash), txindex);
|
||||
}
|
||||
|
||||
bool CTxDB::AddTxIndex(const CTransaction& tx, const CDiskTxPos& pos, int nHeight)
|
||||
{
|
||||
assert(!fClient);
|
||||
|
||||
// Add to tx index
|
||||
uint256 hash = tx.GetHash();
|
||||
CTxIndex txindex(pos, tx.vout.size());
|
||||
return Write(make_pair(string("tx"), hash), txindex);
|
||||
}
|
||||
|
||||
bool CTxDB::EraseTxIndex(const CTransaction& tx)
|
||||
{
|
||||
assert(!fClient);
|
||||
uint256 hash = tx.GetHash();
|
||||
|
||||
return Erase(make_pair(string("tx"), hash));
|
||||
}
|
||||
|
||||
bool CTxDB::ContainsTx(uint256 hash)
|
||||
{
|
||||
assert(!fClient);
|
||||
return Exists(make_pair(string("tx"), hash));
|
||||
}
|
||||
|
||||
bool CTxDB::ReadDiskTx(uint256 hash, CTransaction& tx, CTxIndex& txindex)
|
||||
{
|
||||
assert(!fClient);
|
||||
tx.SetNull();
|
||||
if (!ReadTxIndex(hash, txindex))
|
||||
return false;
|
||||
return (tx.ReadFromDisk(txindex.pos));
|
||||
}
|
||||
|
||||
bool CTxDB::ReadDiskTx(uint256 hash, CTransaction& tx)
|
||||
{
|
||||
CTxIndex txindex;
|
||||
return ReadDiskTx(hash, tx, txindex);
|
||||
}
|
||||
|
||||
bool CTxDB::ReadDiskTx(COutPoint outpoint, CTransaction& tx, CTxIndex& txindex)
|
||||
{
|
||||
return ReadDiskTx(outpoint.hash, tx, txindex);
|
||||
}
|
||||
|
||||
bool CTxDB::ReadDiskTx(COutPoint outpoint, CTransaction& tx)
|
||||
{
|
||||
CTxIndex txindex;
|
||||
return ReadDiskTx(outpoint.hash, tx, txindex);
|
||||
}
|
||||
|
||||
bool CTxDB::WriteBlockIndex(const CDiskBlockIndex& blockindex)
|
||||
{
|
||||
return Write(make_pair(string("blockindex"), blockindex.GetBlockHash()), blockindex);
|
||||
}
|
||||
|
||||
bool CTxDB::ReadHashBestChain(uint256& hashBestChain)
|
||||
{
|
||||
return Read(string("hashBestChain"), hashBestChain);
|
||||
}
|
||||
|
||||
bool CTxDB::WriteHashBestChain(uint256 hashBestChain)
|
||||
{
|
||||
return Write(string("hashBestChain"), hashBestChain);
|
||||
}
|
||||
|
||||
bool CTxDB::ReadBestInvalidTrust(CBigNum& bnBestInvalidTrust)
|
||||
{
|
||||
return Read(string("bnBestInvalidTrust"), bnBestInvalidTrust);
|
||||
}
|
||||
|
||||
bool CTxDB::WriteBestInvalidTrust(CBigNum bnBestInvalidTrust)
|
||||
{
|
||||
return Write(string("bnBestInvalidTrust"), bnBestInvalidTrust);
|
||||
}
|
||||
|
||||
bool CTxDB::ReadSyncCheckpoint(uint256& hashCheckpoint)
|
||||
{
|
||||
return Read(string("hashSyncCheckpoint"), hashCheckpoint);
|
||||
}
|
||||
|
||||
bool CTxDB::WriteSyncCheckpoint(uint256 hashCheckpoint)
|
||||
{
|
||||
return Write(string("hashSyncCheckpoint"), hashCheckpoint);
|
||||
}
|
||||
|
||||
bool CTxDB::ReadCheckpointPubKey(string& strPubKey)
|
||||
{
|
||||
return Read(string("strCheckpointPubKey"), strPubKey);
|
||||
}
|
||||
|
||||
bool CTxDB::WriteCheckpointPubKey(const string& strPubKey)
|
||||
{
|
||||
return Write(string("strCheckpointPubKey"), strPubKey);
|
||||
}
|
||||
|
||||
CBlockIndex static * InsertBlockIndex(uint256 hash)
|
||||
{
|
||||
if (hash == 0)
|
||||
return NULL;
|
||||
|
||||
// Return existing
|
||||
map<uint256, CBlockIndex*>::iterator mi = mapBlockIndex.find(hash);
|
||||
if (mi != mapBlockIndex.end())
|
||||
return (*mi).second;
|
||||
|
||||
// Create new
|
||||
CBlockIndex* pindexNew = new CBlockIndex();
|
||||
if (!pindexNew)
|
||||
throw runtime_error("LoadBlockIndex() : new CBlockIndex failed");
|
||||
mi = mapBlockIndex.insert(make_pair(hash, pindexNew)).first;
|
||||
pindexNew->phashBlock = &((*mi).first);
|
||||
|
||||
return pindexNew;
|
||||
}
|
||||
|
||||
bool CTxDB::LoadBlockIndex()
|
||||
{
|
||||
if (!LoadBlockIndexGuts())
|
||||
return false;
|
||||
|
||||
if (fRequestShutdown)
|
||||
return true;
|
||||
|
||||
// Calculate bnChainTrust
|
||||
vector<pair<int, CBlockIndex*> > vSortedByHeight;
|
||||
vSortedByHeight.reserve(mapBlockIndex.size());
|
||||
BOOST_FOREACH(const PAIRTYPE(uint256, CBlockIndex*)& item, mapBlockIndex)
|
||||
{
|
||||
CBlockIndex* pindex = item.second;
|
||||
vSortedByHeight.push_back(make_pair(pindex->nHeight, pindex));
|
||||
}
|
||||
sort(vSortedByHeight.begin(), vSortedByHeight.end());
|
||||
BOOST_FOREACH(const PAIRTYPE(int, CBlockIndex*)& item, vSortedByHeight)
|
||||
{
|
||||
CBlockIndex* pindex = item.second;
|
||||
pindex->bnChainTrust = (pindex->pprev ? pindex->pprev->bnChainTrust : 0) + pindex->GetBlockTrust();
|
||||
// triangles: calculate stake modifier checksum
|
||||
pindex->nStakeModifierChecksum = GetStakeModifierChecksum(pindex);
|
||||
if (!CheckStakeModifierCheckpoints(pindex->nHeight, pindex->nStakeModifierChecksum))
|
||||
return error("CTxDB::LoadBlockIndex() : Failed stake modifier checkpoint height=%d, modifier=0x%016"PRI64x, pindex->nHeight, pindex->nStakeModifier);
|
||||
}
|
||||
|
||||
// Load hashBestChain pointer to end of best chain
|
||||
if (!ReadHashBestChain(hashBestChain))
|
||||
{
|
||||
if (pindexGenesisBlock == NULL)
|
||||
return true;
|
||||
return error("CTxDB::LoadBlockIndex() : hashBestChain not loaded");
|
||||
}
|
||||
if (!mapBlockIndex.count(hashBestChain))
|
||||
return error("CTxDB::LoadBlockIndex() : hashBestChain not found in the block index");
|
||||
pindexBest = mapBlockIndex[hashBestChain];
|
||||
nBestHeight = pindexBest->nHeight;
|
||||
bnBestChainTrust = pindexBest->bnChainTrust;
|
||||
printf("LoadBlockIndex(): hashBestChain=%s height=%d trust=%s date=%s\n",
|
||||
hashBestChain.ToString().substr(0,20).c_str(), nBestHeight, bnBestChainTrust.ToString().c_str(),
|
||||
DateTimeStrFormat("%x %H:%M:%S", pindexBest->GetBlockTime()).c_str());
|
||||
|
||||
// triangles: load hashSyncCheckpoint
|
||||
if (!ReadSyncCheckpoint(Checkpoints::hashSyncCheckpoint))
|
||||
return error("CTxDB::LoadBlockIndex() : hashSyncCheckpoint not loaded");
|
||||
printf("LoadBlockIndex(): synchronized checkpoint %s\n", Checkpoints::hashSyncCheckpoint.ToString().c_str());
|
||||
|
||||
// Load bnBestInvalidTrust, OK if it doesn't exist
|
||||
ReadBestInvalidTrust(bnBestInvalidTrust);
|
||||
|
||||
// Verify blocks in the best chain
|
||||
int nCheckLevel = GetArg("-checklevel", 1);
|
||||
int nCheckDepth = GetArg( "-checkblocks", 2500);
|
||||
if (nCheckDepth == 0)
|
||||
nCheckDepth = 1000000000; // suffices until the year 19000
|
||||
if (nCheckDepth > nBestHeight)
|
||||
nCheckDepth = nBestHeight;
|
||||
printf("Verifying last %i blocks at level %i\n", nCheckDepth, nCheckLevel);
|
||||
CBlockIndex* pindexFork = NULL;
|
||||
map<pair<unsigned int, unsigned int>, CBlockIndex*> mapBlockPos;
|
||||
for (CBlockIndex* pindex = pindexBest; pindex && pindex->pprev; pindex = pindex->pprev)
|
||||
{
|
||||
if (fRequestShutdown || pindex->nHeight < nBestHeight-nCheckDepth)
|
||||
break;
|
||||
CBlock block;
|
||||
if (!block.ReadFromDisk(pindex))
|
||||
return error("LoadBlockIndex() : block.ReadFromDisk failed");
|
||||
// check level 1: verify block validity
|
||||
if (nCheckLevel>0 && !block.CheckBlock())
|
||||
{
|
||||
printf("LoadBlockIndex() : *** found bad block at %d, hash=%s\n", pindex->nHeight, pindex->GetBlockHash().ToString().c_str());
|
||||
pindexFork = pindex->pprev;
|
||||
}
|
||||
// check level 2: verify transaction index validity
|
||||
if (nCheckLevel>1)
|
||||
{
|
||||
pair<unsigned int, unsigned int> pos = make_pair(pindex->nFile, pindex->nBlockPos);
|
||||
mapBlockPos[pos] = pindex;
|
||||
BOOST_FOREACH(const CTransaction &tx, block.vtx)
|
||||
{
|
||||
uint256 hashTx = tx.GetHash();
|
||||
CTxIndex txindex;
|
||||
if (ReadTxIndex(hashTx, txindex))
|
||||
{
|
||||
// check level 3: checker transaction hashes
|
||||
if (nCheckLevel>2 || pindex->nFile != txindex.pos.nFile || pindex->nBlockPos != txindex.pos.nBlockPos)
|
||||
{
|
||||
// either an error or a duplicate transaction
|
||||
CTransaction txFound;
|
||||
if (!txFound.ReadFromDisk(txindex.pos))
|
||||
{
|
||||
printf("LoadBlockIndex() : *** cannot read mislocated transaction %s\n", hashTx.ToString().c_str());
|
||||
pindexFork = pindex->pprev;
|
||||
}
|
||||
else
|
||||
if (txFound.GetHash() != hashTx) // not a duplicate tx
|
||||
{
|
||||
printf("LoadBlockIndex(): *** invalid tx position for %s\n", hashTx.ToString().c_str());
|
||||
pindexFork = pindex->pprev;
|
||||
}
|
||||
}
|
||||
// check level 4: check whether spent txouts were spent within the main chain
|
||||
unsigned int nOutput = 0;
|
||||
if (nCheckLevel>3)
|
||||
{
|
||||
BOOST_FOREACH(const CDiskTxPos &txpos, txindex.vSpent)
|
||||
{
|
||||
if (!txpos.IsNull())
|
||||
{
|
||||
pair<unsigned int, unsigned int> posFind = make_pair(txpos.nFile, txpos.nBlockPos);
|
||||
if (!mapBlockPos.count(posFind))
|
||||
{
|
||||
printf("LoadBlockIndex(): *** found bad spend at %d, hashBlock=%s, hashTx=%s\n", pindex->nHeight, pindex->GetBlockHash().ToString().c_str(), hashTx.ToString().c_str());
|
||||
pindexFork = pindex->pprev;
|
||||
}
|
||||
// check level 6: check whether spent txouts were spent by a valid transaction that consume them
|
||||
if (nCheckLevel>5)
|
||||
{
|
||||
CTransaction txSpend;
|
||||
if (!txSpend.ReadFromDisk(txpos))
|
||||
{
|
||||
printf("LoadBlockIndex(): *** cannot read spending transaction of %s:%i from disk\n", hashTx.ToString().c_str(), nOutput);
|
||||
pindexFork = pindex->pprev;
|
||||
}
|
||||
else if (!txSpend.CheckTransaction())
|
||||
{
|
||||
printf("LoadBlockIndex(): *** spending transaction of %s:%i is invalid\n", hashTx.ToString().c_str(), nOutput);
|
||||
pindexFork = pindex->pprev;
|
||||
}
|
||||
else
|
||||
{
|
||||
bool fFound = false;
|
||||
BOOST_FOREACH(const CTxIn &txin, txSpend.vin)
|
||||
if (txin.prevout.hash == hashTx && txin.prevout.n == nOutput)
|
||||
fFound = true;
|
||||
if (!fFound)
|
||||
{
|
||||
printf("LoadBlockIndex(): *** spending transaction of %s:%i does not spend it\n", hashTx.ToString().c_str(), nOutput);
|
||||
pindexFork = pindex->pprev;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
nOutput++;
|
||||
}
|
||||
}
|
||||
}
|
||||
// check level 5: check whether all prevouts are marked spent
|
||||
if (nCheckLevel>4)
|
||||
{
|
||||
BOOST_FOREACH(const CTxIn &txin, tx.vin)
|
||||
{
|
||||
CTxIndex txindex;
|
||||
if (ReadTxIndex(txin.prevout.hash, txindex))
|
||||
if (txindex.vSpent.size()-1 < txin.prevout.n || txindex.vSpent[txin.prevout.n].IsNull())
|
||||
{
|
||||
printf("LoadBlockIndex(): *** found unspent prevout %s:%i in %s\n", txin.prevout.hash.ToString().c_str(), txin.prevout.n, hashTx.ToString().c_str());
|
||||
pindexFork = pindex->pprev;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
if (pindexFork && !fRequestShutdown)
|
||||
{
|
||||
// Reorg back to the fork
|
||||
printf("LoadBlockIndex() : *** moving best chain pointer back to block %d\n", pindexFork->nHeight);
|
||||
CBlock block;
|
||||
if (!block.ReadFromDisk(pindexFork))
|
||||
return error("LoadBlockIndex() : block.ReadFromDisk failed");
|
||||
CTxDB txdb;
|
||||
block.SetBestChain(txdb, pindexFork);
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
|
||||
|
||||
bool CTxDB::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(string("blockindex"), 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 {
|
||||
string strType;
|
||||
ssKey >> strType;
|
||||
if (strType == "blockindex" && !fRequestShutdown)
|
||||
{
|
||||
CDiskBlockIndex diskindex;
|
||||
ssValue >> diskindex;
|
||||
|
||||
// Construct block index object
|
||||
CBlockIndex* pindexNew = InsertBlockIndex(diskindex.GetBlockHash());
|
||||
pindexNew->pprev = InsertBlockIndex(diskindex.hashPrev);
|
||||
pindexNew->pnext = InsertBlockIndex(diskindex.hashNext);
|
||||
pindexNew->nFile = diskindex.nFile;
|
||||
pindexNew->nBlockPos = diskindex.nBlockPos;
|
||||
pindexNew->nHeight = diskindex.nHeight;
|
||||
pindexNew->nMint = diskindex.nMint;
|
||||
pindexNew->nMoneySupply = diskindex.nMoneySupply;
|
||||
pindexNew->nFlags = diskindex.nFlags;
|
||||
pindexNew->nStakeModifier = diskindex.nStakeModifier;
|
||||
pindexNew->prevoutStake = diskindex.prevoutStake;
|
||||
pindexNew->nStakeTime = diskindex.nStakeTime;
|
||||
pindexNew->hashProofOfStake = diskindex.hashProofOfStake;
|
||||
pindexNew->nVersion = diskindex.nVersion;
|
||||
pindexNew->hashMerkleRoot = diskindex.hashMerkleRoot;
|
||||
pindexNew->nTime = diskindex.nTime;
|
||||
pindexNew->nBits = diskindex.nBits;
|
||||
pindexNew->nNonce = diskindex.nNonce;
|
||||
|
||||
// Watch for genesis block
|
||||
if (pindexGenesisBlock == NULL && diskindex.GetBlockHash() == (!fTestNet ? hashGenesisBlock : hashGenesisBlockTestNet))
|
||||
pindexGenesisBlock = pindexNew;
|
||||
|
||||
if (!pindexNew->CheckIndex())
|
||||
return error("LoadBlockIndex() : CheckIndex failed at %d", pindexNew->nHeight);
|
||||
|
||||
// triangles: build setStakeSeen
|
||||
if (pindexNew->IsProofOfStake())
|
||||
setStakeSeen.insert(make_pair(pindexNew->prevoutStake, pindexNew->nStakeTime));
|
||||
}
|
||||
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;
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
//
|
||||
// CAddrDB
|
||||
//
|
||||
|
||||
|
||||
CAddrDB::CAddrDB()
|
||||
{
|
||||
pathAddr = GetDataDir() / "peers.dat";
|
||||
}
|
||||
|
||||
bool CAddrDB::Write(const CAddrMan& addr)
|
||||
{
|
||||
// Generate random temporary filename
|
||||
unsigned short randv = 0;
|
||||
RAND_bytes((unsigned char *)&randv, sizeof(randv));
|
||||
std::string tmpfn = strprintf("peers.dat.%04x", randv);
|
||||
|
||||
// serialize addresses, checksum data up to that point, then append csum
|
||||
CDataStream ssPeers(SER_DISK, CLIENT_VERSION);
|
||||
ssPeers << FLATDATA(pchMessageStart);
|
||||
ssPeers << addr;
|
||||
uint256 hash = Hash(ssPeers.begin(), ssPeers.end());
|
||||
ssPeers << hash;
|
||||
|
||||
// open temp output file, and associate with CAutoFile
|
||||
boost::filesystem::path pathTmp = GetDataDir() / tmpfn;
|
||||
FILE *file = fopen(pathTmp.string().c_str(), "wb");
|
||||
CAutoFile fileout = CAutoFile(file, SER_DISK, CLIENT_VERSION);
|
||||
if (!fileout)
|
||||
return error("CAddrman::Write() : open failed");
|
||||
|
||||
// Write and commit header, data
|
||||
try {
|
||||
fileout << ssPeers;
|
||||
}
|
||||
catch (std::exception &e) {
|
||||
return error("CAddrman::Write() : I/O error");
|
||||
}
|
||||
FileCommit(fileout);
|
||||
fileout.fclose();
|
||||
|
||||
// replace existing peers.dat, if any, with new peers.dat.XXXX
|
||||
if (!RenameOver(pathTmp, pathAddr))
|
||||
return error("CAddrman::Write() : Rename-into-place failed");
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
bool CAddrDB::Read(CAddrMan& addr)
|
||||
{
|
||||
// open input file, and associate with CAutoFile
|
||||
FILE *file = fopen(pathAddr.string().c_str(), "rb");
|
||||
CAutoFile filein = CAutoFile(file, SER_DISK, CLIENT_VERSION);
|
||||
if (!filein)
|
||||
return error("CAddrman::Read() : open failed");
|
||||
|
||||
// use file size to size memory buffer
|
||||
int fileSize = GetFilesize(filein);
|
||||
int dataSize = fileSize - sizeof(uint256);
|
||||
vector<unsigned char> vchData;
|
||||
vchData.resize(dataSize);
|
||||
uint256 hashIn;
|
||||
|
||||
// read data and checksum from file
|
||||
try {
|
||||
filein.read((char *)&vchData[0], dataSize);
|
||||
filein >> hashIn;
|
||||
}
|
||||
catch (std::exception &e) {
|
||||
return error("CAddrman::Read() 2 : I/O error or stream data corrupted");
|
||||
}
|
||||
filein.fclose();
|
||||
|
||||
CDataStream ssPeers(vchData, SER_DISK, CLIENT_VERSION);
|
||||
|
||||
// verify stored checksum matches input data
|
||||
uint256 hashTmp = Hash(ssPeers.begin(), ssPeers.end());
|
||||
if (hashIn != hashTmp)
|
||||
return error("CAddrman::Read() : checksum mismatch; data corrupted");
|
||||
|
||||
unsigned char pchMsgTmp[4];
|
||||
try {
|
||||
// de-serialize file header (pchMessageStart magic number) and
|
||||
ssPeers >> FLATDATA(pchMsgTmp);
|
||||
|
||||
// verify the network matches ours
|
||||
if (memcmp(pchMsgTmp, pchMessageStart, sizeof(pchMsgTmp)))
|
||||
return error("CAddrman::Read() : invalid network magic number");
|
||||
|
||||
// de-serialize address data into one CAddrMan object
|
||||
ssPeers >> addr;
|
||||
}
|
||||
catch (std::exception &e) {
|
||||
return error("CAddrman::Read() : I/O error or stream data corrupted");
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user