X-Git-Url: https://git.novaco.in/?a=blobdiff_plain;f=src%2Ftxdb-bdb.cpp;h=1235125c821d95d1c35d08de4d3d50eade13f33c;hb=HEAD;hp=6c1fdac2963cd967913cd0357d29c22530fd40a4;hpb=d008ea3376606276a86ed3c972654363eb23f47d;p=novacoin.git diff --git a/src/txdb-bdb.cpp b/src/txdb-bdb.cpp deleted file mode 100644 index 6c1fdac..0000000 --- a/src/txdb-bdb.cpp +++ /dev/null @@ -1,436 +0,0 @@ -// Copyright (c) 2009-2010 Satoshi Nakamoto -// Copyright (c) 2009-2012 The Bitcoin developers -// Distributed under the MIT/X11 software license, see the accompanying -// file COPYING or http://www.opensource.org/licenses/mit-license.php. - -#include "db.h" -#include "kernel.h" -#include "checkpoints.h" -#include "txdb-bdb.h" -#include "util.h" -#include "main.h" -#include -#include -#include - -#ifndef WIN32 -#include "sys/stat.h" -#endif - -using namespace std; -using namespace boost; - -void MakeMockTXDB() { - // In practice this won't do anything because the test framework always initializes - // an in-memory BDB via bitdb.MakeMock() first, as we use BDB for addresses and wallets. - if (!bitdb.IsMock()) - bitdb.MakeMock(); -} - -// -// 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); -} - -bool CTxDB::ReadModifierUpgradeTime(unsigned int& nUpgradeTime) -{ - return Read(string("nUpgradeTime"), nUpgradeTime); -} - -bool CTxDB::WriteModifierUpgradeTime(const unsigned int& nUpgradeTime) -{ - return Write(string("nUpgradeTime"), nUpgradeTime); -} - -CBlockIndex static * InsertBlockIndex(uint256 hash) -{ - if (hash == 0) - return NULL; - - // Return existing - map::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 nChainTrust - vector > 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->nChainTrust = (pindex->pprev ? pindex->pprev->nChainTrust : 0) + pindex->GetBlockTrust(); - // ppcoin: 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; - nBestChainTrust = pindexBest->nChainTrust; - printf("LoadBlockIndex(): hashBestChain=%s height=%d trust=%s date=%s\n", - hashBestChain.ToString().substr(0,20).c_str(), nBestHeight, CBigNum(nBestChainTrust).ToString().c_str(), - DateTimeStrFormat("%x %H:%M:%S", pindexBest->GetBlockTime()).c_str()); - - // ppcoin: 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 - CBigNum bnBestInvalidTrust; - ReadBestInvalidTrust(bnBestInvalidTrust); - nBestInvalidTrust = bnBestInvalidTrust.getuint256(); - - // 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 (fRequestShutdown || pindex->nHeight < nBestHeight-nCheckDepth) - break; - CBlock block; - if (!block.ReadFromDisk(pindex)) - return error("LoadBlockIndex() : block.ReadFromDisk failed"); - // check level 1: verify block validity - // check level 7: verify block signature too - if (nCheckLevel>0 && !block.CheckBlock(true, true, (nCheckLevel>6))) - { - 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 - unsigned 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 && !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; - while (true) - { - // 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; - - uint256 blockHash = diskindex.GetBlockHash(); - - // Construct block index object - CBlockIndex* pindexNew = InsertBlockIndex(blockHash); - 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 && blockHash == (!fTestNet ? hashGenesisBlock : hashGenesisBlockTestNet)) - pindexGenesisBlock = pindexNew; - - if (!pindexNew->CheckIndex()) - return error("LoadBlockIndex() : CheckIndex failed at %d", pindexNew->nHeight); - - // ppcoin: 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", BOOST_CURRENT_FUNCTION); - } - } - pcursor->close(); - - return true; -} - -