X-Git-Url: https://git.novaco.in/?a=blobdiff_plain;f=src%2Fdb.cpp;h=2dddcf095a0e59d6e4fb2c2c2bb948ff2cc4b77a;hb=d11488abd05cb39a9f481e7c4c35f780197a3d28;hp=3bdfd6455623b5d1625c049eec297f6118d9b4ba;hpb=a6b4a11385bf44e695c3e47cbd0de6e40eea0b23;p=novacoin.git diff --git a/src/db.cpp b/src/db.cpp index 3bdfd64..2dddcf0 100644 --- a/src/db.cpp +++ b/src/db.cpp @@ -1,7 +1,7 @@ // Copyright (c) 2009-2010 Satoshi Nakamoto // Copyright (c) 2009-2012 The Bitcoin developers // Distributed under the MIT/X11 software license, see the accompanying -// file license.txt or http://www.opensource.org/licenses/mit-license.php. +// file COPYING or http://www.opensource.org/licenses/mit-license.php. #include "headers.h" #include "db.h" @@ -28,6 +28,7 @@ static bool fDbEnvInit = false; DbEnv dbenv(0); static map mapFileUseCount; static map mapDb; +static int64 nTxn = 0; static void EnvShutdown() { @@ -87,12 +88,13 @@ CDB::CDB(const char* pszFile, const char* pszMode) : pdb(NULL) int nDbCache = GetArg("-dbcache", 25); dbenv.set_lg_dir(strLogDir.c_str()); dbenv.set_cachesize(nDbCache / 1024, (nDbCache % 1024)*1048576, 1); - dbenv.set_lg_bsize(10485760); - dbenv.set_lg_max(104857600); + dbenv.set_lg_bsize(1048576); + dbenv.set_lg_max(10485760); dbenv.set_lk_max_locks(10000); dbenv.set_lk_max_objects(10000); dbenv.set_errfile(fopen(strErrorFile.c_str(), "a")); /// debug dbenv.set_flags(DB_AUTO_COMMIT, 1); + dbenv.log_set_config(DB_LOG_AUTO_REMOVE, 1); ret = dbenv.open(strDataDir.c_str(), DB_CREATE | DB_INIT_LOCK | @@ -159,8 +161,15 @@ void CDB::Close() nMinutes = 1; if (strFile == "addr.dat") nMinutes = 2; - if (strFile == "blkindex.dat" && IsInitialBlockDownload() && nBestHeight % 5000 != 0) - nMinutes = 1; + if (strFile == "blkindex.dat" && IsInitialBlockDownload()) + nMinutes = 5; + + if (nMinutes == 0 || nTxn > 200000) + { + nTxn = 0; + nMinutes = 0; + } + dbenv.txn_checkpoint(0, nMinutes, 0); CRITICAL_BLOCK(cs_db) @@ -335,6 +344,7 @@ bool CTxDB::ReadTxIndex(uint256 hash, CTxIndex& txindex) bool CTxDB::UpdateTxIndex(uint256 hash, const CTxIndex& txindex) { assert(!fClient); + nTxn++; return Write(make_pair(string("tx"), hash), txindex); } @@ -345,6 +355,7 @@ bool CTxDB::AddTxIndex(const CTransaction& tx, const CDiskTxPos& pos, int nHeigh // Add to tx index uint256 hash = tx.GetHash(); CTxIndex txindex(pos, tx.vout.size()); + nTxn++; return Write(make_pair(string("tx"), hash), txindex); } @@ -583,19 +594,118 @@ bool CTxDB::LoadBlockIndex() ReadBestInvalidWork(bnBestInvalidWork); // 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, CBlockIndex*> mapBlockPos; for (CBlockIndex* pindex = pindexBest; pindex && pindex->pprev; pindex = pindex->pprev) { - if (pindex->nHeight < nBestHeight-2500 && !mapArgs.count("-checkblocks")) + if (pindex->nHeight < nBestHeight-nCheckDepth) break; CBlock block; if (!block.ReadFromDisk(pindex)) return error("LoadBlockIndex() : block.ReadFromDisk failed"); - if (!block.CheckBlock()) + // 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 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 + int nOutput = 0; + if (nCheckLevel>3) + { + BOOST_FOREACH(const CDiskTxPos &txpos, txindex.vSpent) + { + if (!txpos.IsNull()) + { + pair 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) { @@ -619,31 +729,23 @@ bool CTxDB::LoadBlockIndex() // CAddrDB // -bool CAddrDB::WriteAddress(const CAddress& addr) -{ - return Write(make_pair(string("addr"), addr.GetKey()), addr); -} - bool CAddrDB::WriteAddrman(const CAddrMan& addrman) { return Write(string("addrman"), addrman); } -bool CAddrDB::EraseAddress(const CAddress& addr) +bool CAddrDB::LoadAddresses() { - return Erase(make_pair(string("addr"), addr.GetKey())); -} - -bool CAddrDB::LoadAddresses(bool &fUpdate) -{ - bool fAddrMan = false; if (Read(string("addrman"), addrman)) { printf("Loaded %i addresses\n", addrman.size()); - fAddrMan = true; + return true; } + + // Read pre-0.6 addr records vector vAddr; + vector > vDelete; // Get cursor Dbc* pcursor = GetCursor(); @@ -666,35 +768,26 @@ bool CAddrDB::LoadAddresses(bool &fUpdate) ssKey >> strType; if (strType == "addr") { - if (fAddrMan) - fUpdate = true; - else - { - CAddress addr; - ssValue >> addr; - vAddr.push_back(addr); - } - + CAddress addr; + ssValue >> addr; + vAddr.push_back(addr); } } pcursor->close(); - if (!fAddrMan) - { - addrman.Add(vAddr, CNetAddr("0.0.0.0")); - printf("Loaded %i addresses\n", addrman.size()); - } + addrman.Add(vAddr, CNetAddr("0.0.0.0")); + printf("Loaded %i addresses\n", addrman.size()); + + // Note: old records left; we ran into hangs-on-startup + // bugs for some users who (we think) were running after + // an unclean shutdown. return true; } bool LoadAddresses() { - bool fUpdate = false; - bool fRet = CAddrDB("cr+").LoadAddresses(fUpdate); - if (fUpdate) - CDB::Rewrite("addr.dat", "\004addr"); - return fRet; + return CAddrDB("cr+").LoadAddresses(); } @@ -799,6 +892,14 @@ int CWalletDB::LoadWallet(CWallet* pwallet) //// todo: shouldn't we catch exceptions and try to recover and continue? CRITICAL_BLOCK(pwallet->cs_wallet) { + int nMinVersion = 0; + if (Read((string)"minversion", nMinVersion)) + { + if (nMinVersion > CLIENT_VERSION) + return DB_TOO_NEW; + pwallet->LoadMinVersion(nMinVersion); + } + // Get cursor Dbc* pcursor = GetCursor(); if (!pcursor) @@ -864,7 +965,7 @@ int CWalletDB::LoadWallet(CWallet* pwallet) //// debug print //printf("LoadWallet %s\n", wtx.GetHash().ToString().c_str()); - //printf(" %12I64d %s %s %s\n", + //printf(" %12"PRI64d" %s %s %s\n", // wtx.vout[0].nValue, // DateTimeStrFormat("%x %H:%M:%S", wtx.GetBlockTime()).c_str(), // wtx.hashBlock.ToString().substr(0,20).c_str(), @@ -968,14 +1069,6 @@ int CWalletDB::LoadWallet(CWallet* pwallet) if (nFileVersion == 10300) nFileVersion = 300; } - else if (strType == "minversion") - { - int nMinVersion = 0; - ssValue >> nMinVersion; - if (nMinVersion > CLIENT_VERSION) - return DB_TOO_NEW; - pwallet->LoadMinVersion(nMinVersion); - } else if (strType == "cscript") { uint160 hash;