+++ /dev/null
-// 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 <boost/version.hpp>
-#include <boost/filesystem.hpp>
-#include <boost/filesystem/fstream.hpp>
-
-#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<uint256, CBlockIndex*>::iterator mi = mapBlockIndex.find(hash);
- if (mi != mapBlockIndex.end())
- return (*mi).second;
-
- // Create new
- CBlockIndex* pindexNew = new(nothrow) 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<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->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" PRIx64, 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 = GetArgInt("-checklevel", 1);
- int nCheckDepth = GetArgInt( "-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
- // 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<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;
- for ( ; ; )
- {
- // 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 (const std::exception&) {
- return error("%s() : deserialize error", BOOST_CURRENT_FUNCTION);
- }
- }
- pcursor->close();
-
- return true;
-}
-
-
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