diff options
Diffstat (limited to 'src/main.cpp')
| -rw-r--r-- | src/main.cpp | 268 |
1 files changed, 99 insertions, 169 deletions
diff --git a/src/main.cpp b/src/main.cpp index 01f3e06a6..4aebdadd3 100644 --- a/src/main.cpp +++ b/src/main.cpp @@ -23,6 +23,7 @@ #include <boost/algorithm/string/replace.hpp> #include <boost/filesystem.hpp> #include <boost/filesystem/fstream.hpp> +#include <boost/thread.hpp> using namespace std; using namespace boost; @@ -643,7 +644,7 @@ bool IsFinalTx(const CTransaction &tx, int nBlockHeight, int64_t nBlockTime) // 2. P2SH scripts with a crazy number of expensive // CHECKSIG/CHECKMULTISIG operations // -bool AreInputsStandard(const CTransaction& tx, CCoinsViewCache& mapInputs) +bool AreInputsStandard(const CTransaction& tx, const CCoinsViewCache& mapInputs) { if (tx.IsCoinBase()) return true; // Coinbases don't use vin normally @@ -716,7 +717,7 @@ unsigned int GetLegacySigOpCount(const CTransaction& tx) return nSigOps; } -unsigned int GetP2SHSigOpCount(const CTransaction& tx, CCoinsViewCache& inputs) +unsigned int GetP2SHSigOpCount(const CTransaction& tx, const CCoinsViewCache& inputs) { if (tx.IsCoinBase()) return 0; @@ -731,53 +732,6 @@ unsigned int GetP2SHSigOpCount(const CTransaction& tx, CCoinsViewCache& inputs) return nSigOps; } -int CMerkleTx::SetMerkleBranch(const CBlock* pblock) -{ - AssertLockHeld(cs_main); - CBlock blockTmp; - - if (pblock == NULL) { - CCoins coins; - if (pcoinsTip->GetCoins(GetHash(), coins)) { - CBlockIndex *pindex = chainActive[coins.nHeight]; - if (pindex) { - if (!ReadBlockFromDisk(blockTmp, pindex)) - return 0; - pblock = &blockTmp; - } - } - } - - if (pblock) { - // Update the tx's hashBlock - hashBlock = pblock->GetHash(); - - // Locate the transaction - for (nIndex = 0; nIndex < (int)pblock->vtx.size(); nIndex++) - if (pblock->vtx[nIndex] == *(CTransaction*)this) - break; - if (nIndex == (int)pblock->vtx.size()) - { - vMerkleBranch.clear(); - nIndex = -1; - LogPrintf("ERROR: SetMerkleBranch() : couldn't find tx in block\n"); - return 0; - } - - // Fill in merkle branch - vMerkleBranch = pblock->GetMerkleBranch(nIndex); - } - - // Is the tx in a block that's in the main chain - map<uint256, CBlockIndex*>::iterator mi = mapBlockIndex.find(hashBlock); - if (mi == mapBlockIndex.end()) - return 0; - CBlockIndex* pindex = (*mi).second; - if (!pindex || !chainActive.Contains(pindex)) - return 0; - - return chainActive.Height() - pindex->nHeight + 1; -} @@ -1022,63 +976,11 @@ bool AcceptToMemoryPool(CTxMemPool& pool, CValidationState &state, const CTransa pool.addUnchecked(hash, entry); } - g_signals.SyncTransaction(tx, NULL); + SyncWithWallets(tx, NULL); return true; } - -int CMerkleTx::GetDepthInMainChainINTERNAL(CBlockIndex* &pindexRet) const -{ - if (hashBlock == 0 || nIndex == -1) - return 0; - AssertLockHeld(cs_main); - - // Find the block it claims to be in - map<uint256, CBlockIndex*>::iterator mi = mapBlockIndex.find(hashBlock); - if (mi == mapBlockIndex.end()) - return 0; - CBlockIndex* pindex = (*mi).second; - if (!pindex || !chainActive.Contains(pindex)) - return 0; - - // Make sure the merkle branch connects to this block - if (!fMerkleVerified) - { - if (CBlock::CheckMerkleBranch(GetHash(), vMerkleBranch, nIndex) != pindex->hashMerkleRoot) - return 0; - fMerkleVerified = true; - } - - pindexRet = pindex; - return chainActive.Height() - pindex->nHeight + 1; -} - -int CMerkleTx::GetDepthInMainChain(CBlockIndex* &pindexRet) const -{ - AssertLockHeld(cs_main); - int nResult = GetDepthInMainChainINTERNAL(pindexRet); - if (nResult == 0 && !mempool.exists(GetHash())) - return -1; // Not in chain, not in mempool - - return nResult; -} - -int CMerkleTx::GetBlocksToMaturity() const -{ - if (!IsCoinBase()) - return 0; - return max(0, (COINBASE_MATURITY+1) - GetDepthInMainChain()); -} - - -bool CMerkleTx::AcceptToMemoryPool(bool fLimitFree, bool fRejectInsaneFee) -{ - CValidationState state; - return ::AcceptToMemoryPool(mempool, state, *this, fLimitFree, NULL, fRejectInsaneFee); -} - - // Return transaction in tx, and if it was found inside a block, its hash is placed in hashBlock bool GetTransaction(const uint256 &hash, CTransaction &txOut, uint256 &hashBlock, bool fAllowSlow) { @@ -1386,10 +1288,8 @@ void Misbehaving(NodeId pnode, int howmuch) void static InvalidChainFound(CBlockIndex* pindexNew) { if (!pindexBestInvalid || pindexNew->nChainWork > pindexBestInvalid->nChainWork) - { pindexBestInvalid = pindexNew; - uiInterface.NotifyBlocksChanged(); - } + LogPrintf("InvalidChainFound: invalid block=%s height=%d log2_work=%.8g date=%s\n", pindexNew->GetBlockHash().ToString(), pindexNew->nHeight, log(pindexNew->nChainWork.getdouble())/log(2.0), DateTimeStrFormat("%Y-%m-%d %H:%M:%S", @@ -1419,25 +1319,6 @@ void static InvalidBlockFound(CBlockIndex *pindex, const CValidationState &state } } -void UpdateTime(CBlockHeader& block, const CBlockIndex* pindexPrev) -{ - block.nTime = max(pindexPrev->GetMedianTimePast()+1, GetAdjustedTime()); - - // Updating time can change work required on testnet: - if (Params().AllowMinDifficultyBlocks()) - block.nBits = GetNextWorkRequired(pindexPrev, &block); -} - - - - - - - - - - - void UpdateCoins(const CTransaction& tx, CValidationState &state, CCoinsViewCache &inputs, CTxUndo &txundo, int nHeight) { bool ret; @@ -1469,7 +1350,7 @@ bool VerifySignature(const CCoins& txFrom, const CTransaction& txTo, unsigned in return CScriptCheck(txFrom, txTo, nIn, flags, nHashType)(); } -bool CheckInputs(const CTransaction& tx, CValidationState &state, CCoinsViewCache &inputs, bool fScriptChecks, unsigned int flags, std::vector<CScriptCheck> *pvChecks) +bool CheckInputs(const CTransaction& tx, CValidationState &state, const CCoinsViewCache &inputs, bool fScriptChecks, unsigned int flags, std::vector<CScriptCheck> *pvChecks) { if (!tx.IsCoinBase()) { @@ -1857,10 +1738,6 @@ bool ConnectBlock(CBlock& block, CValidationState& state, CBlockIndex* pindex, C int64_t nTime3 = GetTimeMicros(); nTimeIndex += nTime3 - nTime2; LogPrint("bench", " - Index writing: %.2fms [%.2fs]\n", 0.001 * (nTime3 - nTime2), nTimeIndex * 0.000001); - // Watch for transactions paying to me - BOOST_FOREACH(const CTransaction& tx, block.vtx) - g_signals.SyncTransaction(tx, &block); - // Watch for changes to the previous coinbase transaction. static uint256 hashPrevBestCoinBase; g_signals.UpdatedTransaction(hashPrevBestCoinBase); @@ -1978,15 +1855,19 @@ static int64_t nTimeFlush = 0; static int64_t nTimeChainState = 0; static int64_t nTimePostConnect = 0; -// Connect a new block to chainActive. -bool static ConnectTip(CValidationState &state, CBlockIndex *pindexNew) { +// Connect a new block to chainActive. pblock is either NULL or a pointer to a CBlock +// corresponding to pindexNew, to bypass loading it again from disk. +bool static ConnectTip(CValidationState &state, CBlockIndex *pindexNew, CBlock *pblock) { assert(pindexNew->pprev == chainActive.Tip()); mempool.check(pcoinsTip); // Read block from disk. int64_t nTime1 = GetTimeMicros(); CBlock block; - if (!ReadBlockFromDisk(block, pindexNew)) - return state.Abort(_("Failed to read block")); + if (!pblock) { + if (!ReadBlockFromDisk(block, pindexNew)) + return state.Abort(_("Failed to read block")); + pblock = █ + } // Apply the block atomically to the chain state. int64_t nTime2 = GetTimeMicros(); nTimeReadFromDisk += nTime2 - nTime1; int64_t nTime3; @@ -1994,7 +1875,7 @@ bool static ConnectTip(CValidationState &state, CBlockIndex *pindexNew) { { CCoinsViewCache view(*pcoinsTip, true); CInv inv(MSG_BLOCK, pindexNew->GetBlockHash()); - if (!ConnectBlock(block, state, pindexNew, view)) { + if (!ConnectBlock(*pblock, state, pindexNew, view)) { if (state.IsInvalid()) InvalidBlockFound(pindexNew, state); return error("ConnectTip() : ConnectBlock %s failed", pindexNew->GetBlockHash().ToString()); @@ -2013,7 +1894,7 @@ bool static ConnectTip(CValidationState &state, CBlockIndex *pindexNew) { LogPrint("bench", " - Writing chainstate: %.2fms [%.2fs]\n", (nTime5 - nTime4) * 0.001, nTimeChainState * 0.000001); // Remove conflicting transactions from the mempool. list<CTransaction> txConflicted; - mempool.removeForBlock(block.vtx, pindexNew->nHeight, txConflicted); + mempool.removeForBlock(pblock->vtx, pindexNew->nHeight, txConflicted); mempool.check(pcoinsTip); // Update chainActive & related variables. UpdateTip(pindexNew); @@ -2023,8 +1904,8 @@ bool static ConnectTip(CValidationState &state, CBlockIndex *pindexNew) { SyncWithWallets(tx, NULL); } // ... and about transactions that got confirmed: - BOOST_FOREACH(const CTransaction &tx, block.vtx) { - SyncWithWallets(tx, &block); + BOOST_FOREACH(const CTransaction &tx, pblock->vtx) { + SyncWithWallets(tx, pblock); } int64_t nTime6 = GetTimeMicros(); nTimePostConnect += nTime6 - nTime5; nTimeTotal += nTime6 - nTime1; LogPrint("bench", " - Connect postprocess: %.2fms [%.2fs]\n", (nTime6 - nTime5) * 0.001, nTimePostConnect * 0.000001); @@ -2073,7 +1954,8 @@ static CBlockIndex* FindMostWorkChain() { } // Try to make some progress towards making pindexMostWork the active block. -static bool ActivateBestChainStep(CValidationState &state, CBlockIndex *pindexMostWork) { +// pblock is either NULL or a pointer to a CBlock corresponding to pindexMostWork. +static bool ActivateBestChainStep(CValidationState &state, CBlockIndex *pindexMostWork, CBlock *pblock) { AssertLockHeld(cs_main); bool fInvalidFound = false; const CBlockIndex *pindexOldTip = chainActive.Tip(); @@ -2088,14 +1970,15 @@ static bool ActivateBestChainStep(CValidationState &state, CBlockIndex *pindexMo // Build list of new blocks to connect. std::vector<CBlockIndex*> vpindexToConnect; vpindexToConnect.reserve(pindexMostWork->nHeight - (pindexFork ? pindexFork->nHeight : -1)); - while (pindexMostWork && pindexMostWork != pindexFork) { - vpindexToConnect.push_back(pindexMostWork); - pindexMostWork = pindexMostWork->pprev; + CBlockIndex *pindexIter = pindexMostWork; + while (pindexIter && pindexIter != pindexFork) { + vpindexToConnect.push_back(pindexIter); + pindexIter = pindexIter->pprev; } // Connect new blocks. BOOST_REVERSE_FOREACH(CBlockIndex *pindexConnect, vpindexToConnect) { - if (!ConnectTip(state, pindexConnect)) { + if (!ConnectTip(state, pindexConnect, pindexConnect == pindexMostWork ? pblock : NULL)) { if (state.IsInvalid()) { // The block violates a consensus rule. if (!state.CorruptionPossible()) @@ -2136,7 +2019,10 @@ static bool ActivateBestChainStep(CValidationState &state, CBlockIndex *pindexMo return true; } -bool ActivateBestChain(CValidationState &state) { +// Make the best chain active, in multiple steps. The result is either failure +// or an activated best chain. pblock is either NULL or a pointer to a block +// that is already loaded (to avoid loading it again from disk). +bool ActivateBestChain(CValidationState &state, CBlock *pblock) { CBlockIndex *pindexNewTip = NULL; CBlockIndex *pindexMostWork = NULL; do { @@ -2151,7 +2037,7 @@ bool ActivateBestChain(CValidationState &state) { if (pindexMostWork == NULL || pindexMostWork == chainActive.Tip()) return true; - if (!ActivateBestChainStep(state, pindexMostWork)) + if (!ActivateBestChainStep(state, pindexMostWork, pblock && pblock->GetHash() == pindexMostWork->GetBlockHash() ? pblock : NULL)) return false; pindexNewTip = chainActive.Tip(); @@ -2164,18 +2050,15 @@ bool ActivateBestChain(CValidationState &state) { uint256 hashNewTip = pindexNewTip->GetBlockHash(); // Relay inventory, but don't relay old inventory during initial block download. int nBlockEstimate = Checkpoints::GetTotalBlocksEstimate(); + { LOCK(cs_vNodes); BOOST_FOREACH(CNode* pnode, vNodes) if (chainActive.Height() > (pnode->nStartingHeight != -1 ? pnode->nStartingHeight - 2000 : nBlockEstimate)) pnode->PushInventory(CInv(MSG_BLOCK, hashNewTip)); - - std::string strCmd = GetArg("-blocknotify", ""); - if (!strCmd.empty()) { - boost::replace_all(strCmd, "%s", hashNewTip.GetHex()); - boost::thread t(runCommand, strCmd); // thread runs free } + + uiInterface.NotifyBlockTip(hashNewTip); } - uiInterface.NotifyBlocksChanged(); } while(pindexMostWork != chainActive.Tip()); return true; @@ -2429,12 +2312,7 @@ bool AcceptBlockHeader(CBlockHeader& block, CValidationState& state, CBlockIndex return state.DoS(100, error("CheckBlockHeader() : block with timestamp before last checkpoint"), REJECT_CHECKPOINT, "time-too-old"); } - bool fOverflow = false; - uint256 bnNewBlock; - bnNewBlock.SetCompact(block.nBits, NULL, &fOverflow); - uint256 bnRequired; - bnRequired.SetCompact(ComputeMinWork(pcheckpoint->nBits, deltaTime)); - if (fOverflow || bnNewBlock > bnRequired) + if (!CheckMinWork(block.nBits, pcheckpoint->nBits, deltaTime)) { return state.DoS(100, error("CheckBlockHeader() : block with too little proof-of-work"), REJECT_INVALID, "bad-diffbits"); @@ -2699,7 +2577,7 @@ bool ProcessBlock(CValidationState &state, CNode* pfrom, CBlock* pblock, CDiskBl } - if (!ActivateBestChain(state)) + if (!ActivateBestChain(state, pblock)) return error("ProcessBlock() : ActivateBestChain failed"); return true; @@ -3020,7 +2898,7 @@ CVerifyDB::~CVerifyDB() uiInterface.ShowProgress("", 100); } -bool CVerifyDB::VerifyDB(int nCheckLevel, int nCheckDepth) +bool CVerifyDB::VerifyDB(CCoinsView *coinsview, int nCheckLevel, int nCheckDepth) { LOCK(cs_main); if (chainActive.Tip() == NULL || chainActive.Tip()->pprev == NULL) @@ -3033,7 +2911,7 @@ bool CVerifyDB::VerifyDB(int nCheckLevel, int nCheckDepth) nCheckDepth = chainActive.Height(); nCheckLevel = std::max(0, std::min(4, nCheckLevel)); LogPrintf("Verifying last %i blocks at level %i\n", nCheckDepth, nCheckLevel); - CCoinsViewCache coins(*pcoinsTip, true); + CCoinsViewCache coins(*coinsview, true); CBlockIndex* pindexState = chainActive.Tip(); CBlockIndex* pindexFailure = NULL; int nGoodTransactions = 0; @@ -3139,7 +3017,7 @@ bool InitBlockIndex() { CBlockIndex *pindex = AddToBlockIndex(block); if (!ReceivedBlockTransactions(block, state, pindex, blockPos)) return error("LoadBlockIndex() : genesis block not accepted"); - if (!ActivateBestChain(state)) + if (!ActivateBestChain(state, &block)) return error("LoadBlockIndex() : genesis block cannot be activated"); } catch(std::runtime_error &e) { return error("LoadBlockIndex() : failed to initialize block database: %s", e.what()); @@ -3291,15 +3169,6 @@ bool LoadExternalBlockFile(FILE* fileIn, CDiskBlockPos *dbp) return nLoaded > 0; } - - - - - - - - - ////////////////////////////////////////////////////////////////////////////// // // CAlert @@ -4573,7 +4442,68 @@ bool SendMessages(CNode* pto, bool fSendTrickle) } +bool CBlockUndo::WriteToDisk(CDiskBlockPos &pos, const uint256 &hashBlock) +{ + // Open history file to append + CAutoFile fileout = CAutoFile(OpenUndoFile(pos), SER_DISK, CLIENT_VERSION); + if (!fileout) + return error("CBlockUndo::WriteToDisk : OpenUndoFile failed"); + + // Write index header + unsigned int nSize = fileout.GetSerializeSize(*this); + fileout << FLATDATA(Params().MessageStart()) << nSize; + + // Write undo data + long fileOutPos = ftell(fileout); + if (fileOutPos < 0) + return error("CBlockUndo::WriteToDisk : ftell failed"); + pos.nPos = (unsigned int)fileOutPos; + fileout << *this; + + // calculate & write checksum + CHashWriter hasher(SER_GETHASH, PROTOCOL_VERSION); + hasher << hashBlock; + hasher << *this; + fileout << hasher.GetHash(); + + // Flush stdio buffers and commit to disk before returning + fflush(fileout); + if (!IsInitialBlockDownload()) + FileCommit(fileout); + + return true; +} + +bool CBlockUndo::ReadFromDisk(const CDiskBlockPos &pos, const uint256 &hashBlock) +{ + // Open history file to read + CAutoFile filein = CAutoFile(OpenUndoFile(pos, true), SER_DISK, CLIENT_VERSION); + if (!filein) + return error("CBlockUndo::ReadFromDisk : OpenBlockFile failed"); + + // Read block + uint256 hashChecksum; + try { + filein >> *this; + filein >> hashChecksum; + } + catch (std::exception &e) { + return error("%s : Deserialize or I/O error - %s", __func__, e.what()); + } + + // Verify checksum + CHashWriter hasher(SER_GETHASH, PROTOCOL_VERSION); + hasher << hashBlock; + hasher << *this; + if (hashChecksum != hasher.GetHash()) + return error("CBlockUndo::ReadFromDisk : Checksum mismatch"); + + return true; +} + std::string CBlockFileInfo::ToString() const { + return strprintf("CBlockFileInfo(blocks=%u, size=%u, heights=%u...%u, time=%s...%s)", nBlocks, nSize, nHeightFirst, nHeightLast, DateTimeStrFormat("%Y-%m-%d", nTimeFirst).c_str(), DateTimeStrFormat("%Y-%m-%d", nTimeLast).c_str()); + } |