diff options
Diffstat (limited to 'src/main.cpp')
| -rw-r--r-- | src/main.cpp | 55 |
1 files changed, 38 insertions, 17 deletions
diff --git a/src/main.cpp b/src/main.cpp index 8afb7ddcdd..5208fbb031 100644 --- a/src/main.cpp +++ b/src/main.cpp @@ -1711,6 +1711,8 @@ void PartitionCheck(bool (*initialDownloadCheck)(), CCriticalSection& cs, const } } +static int64_t nTimeCheck = 0; +static int64_t nTimeForks = 0; static int64_t nTimeVerify = 0; static int64_t nTimeConnect = 0; static int64_t nTimeIndex = 0; @@ -1721,6 +1723,9 @@ bool ConnectBlock(const CBlock& block, CValidationState& state, CBlockIndex* pin { const CChainParams& chainparams = Params(); AssertLockHeld(cs_main); + + int64_t nTimeStart = GetTimeMicros(); + // Check it again in case a previous version let a bad block in if (!CheckBlock(block, state, !fJustCheck, !fJustCheck)) return false; @@ -1746,6 +1751,9 @@ bool ConnectBlock(const CBlock& block, CValidationState& state, CBlockIndex* pin } } + int64_t nTime1 = GetTimeMicros(); nTimeCheck += nTime1 - nTimeStart; + LogPrint("bench", " - Sanity checks: %.2fms [%.2fs]\n", 0.001 * (nTime1 - nTimeStart), nTimeCheck * 0.000001); + // Do not allow blocks that contain transactions which 'overwrite' older transactions, // unless those are already completely spent. // If such overwrites are allowed, coinbases and transactions depending upon those @@ -1761,6 +1769,17 @@ bool ConnectBlock(const CBlock& block, CValidationState& state, CBlockIndex* pin bool fEnforceBIP30 = (!pindex->phashBlock) || // Enforce on CreateNewBlock invocations which don't have a hash. !((pindex->nHeight==91842 && pindex->GetBlockHash() == uint256S("0x00000000000a4d0a398161ffc163c503763b1f4360639393e0e4c8e300e0caec")) || (pindex->nHeight==91880 && pindex->GetBlockHash() == uint256S("0x00000000000743f190a18c5577a3c2d2a1f610ae9601ac046a38084ccb7cd721"))); + + // Once BIP34 activated it was not possible to create new duplicate coinbases and thus other than starting + // with the 2 existing duplicate coinbase pairs, not possible to create overwriting txs. But by the + // time BIP34 activated, in each of the existing pairs the duplicate coinbase had overwritten the first + // before the first had been spent. Since those coinbases are sufficiently buried its no longer possible to create further + // duplicate transactions descending from the known pairs either. + // If we're on the known chain at height greater than where BIP34 activated, we can save the db accesses needed for the BIP30 check. + CBlockIndex *pindexBIP34height = pindex->pprev->GetAncestor(chainparams.GetConsensus().BIP34Height); + //Only continue to enforce if we're below BIP34 activation height or the block hash at that height doesn't correspond. + fEnforceBIP30 = fEnforceBIP30 && (!pindexBIP34height || !(pindexBIP34height->GetBlockHash() == chainparams.GetConsensus().BIP34Hash)); + if (fEnforceBIP30) { BOOST_FOREACH(const CTransaction& tx, block.vtx) { const CCoins* coins = view.AccessCoins(tx.GetHash()); @@ -1788,11 +1807,13 @@ bool ConnectBlock(const CBlock& block, CValidationState& state, CBlockIndex* pin flags |= SCRIPT_VERIFY_CHECKLOCKTIMEVERIFY; } + int64_t nTime2 = GetTimeMicros(); nTimeForks += nTime2 - nTime1; + LogPrint("bench", " - Fork checks: %.2fms [%.2fs]\n", 0.001 * (nTime2 - nTime1), nTimeForks * 0.000001); + CBlockUndo blockundo; CCheckQueueControl<CScriptCheck> control(fScriptChecks && nScriptCheckThreads ? &scriptcheckqueue : NULL); - int64_t nTimeStart = GetTimeMicros(); CAmount nFees = 0; int nInputs = 0; unsigned int nSigOps = 0; @@ -1830,7 +1851,8 @@ bool ConnectBlock(const CBlock& block, CValidationState& state, CBlockIndex* pin nFees += view.GetValueIn(tx)-tx.GetValueOut(); std::vector<CScriptCheck> vChecks; - if (!CheckInputs(tx, state, view, fScriptChecks, flags, false, nScriptCheckThreads ? &vChecks : NULL)) + bool fCacheResults = fJustCheck; /* Don't cache results if we're actually connecting blocks (still consult the cache, though) */ + if (!CheckInputs(tx, state, view, fScriptChecks, flags, fCacheResults, nScriptCheckThreads ? &vChecks : NULL)) return error("ConnectBlock(): CheckInputs on %s failed with %s", tx.GetHash().ToString(), FormatStateMessage(state)); control.Add(vChecks); @@ -1845,8 +1867,8 @@ bool ConnectBlock(const CBlock& block, CValidationState& state, CBlockIndex* pin vPos.push_back(std::make_pair(tx.GetHash(), pos)); pos.nTxOffset += ::GetSerializeSize(tx, SER_DISK, CLIENT_VERSION); } - int64_t nTime1 = GetTimeMicros(); nTimeConnect += nTime1 - nTimeStart; - LogPrint("bench", " - Connect %u transactions: %.2fms (%.3fms/tx, %.3fms/txin) [%.2fs]\n", (unsigned)block.vtx.size(), 0.001 * (nTime1 - nTimeStart), 0.001 * (nTime1 - nTimeStart) / block.vtx.size(), nInputs <= 1 ? 0 : 0.001 * (nTime1 - nTimeStart) / (nInputs-1), nTimeConnect * 0.000001); + int64_t nTime3 = GetTimeMicros(); nTimeConnect += nTime3 - nTime2; + LogPrint("bench", " - Connect %u transactions: %.2fms (%.3fms/tx, %.3fms/txin) [%.2fs]\n", (unsigned)block.vtx.size(), 0.001 * (nTime3 - nTime2), 0.001 * (nTime3 - nTime2) / block.vtx.size(), nInputs <= 1 ? 0 : 0.001 * (nTime3 - nTime2) / (nInputs-1), nTimeConnect * 0.000001); CAmount blockReward = nFees + GetBlockSubsidy(pindex->nHeight, chainparams.GetConsensus()); if (block.vtx[0].GetValueOut() > blockReward) @@ -1857,8 +1879,8 @@ bool ConnectBlock(const CBlock& block, CValidationState& state, CBlockIndex* pin if (!control.Wait()) return state.DoS(100, false); - int64_t nTime2 = GetTimeMicros(); nTimeVerify += nTime2 - nTimeStart; - LogPrint("bench", " - Verify %u txins: %.2fms (%.3fms/txin) [%.2fs]\n", nInputs - 1, 0.001 * (nTime2 - nTimeStart), nInputs <= 1 ? 0 : 0.001 * (nTime2 - nTimeStart) / (nInputs-1), nTimeVerify * 0.000001); + int64_t nTime4 = GetTimeMicros(); nTimeVerify += nTime4 - nTime2; + LogPrint("bench", " - Verify %u txins: %.2fms (%.3fms/txin) [%.2fs]\n", nInputs - 1, 0.001 * (nTime4 - nTime2), nInputs <= 1 ? 0 : 0.001 * (nTime4 - nTime2) / (nInputs-1), nTimeVerify * 0.000001); if (fJustCheck) return true; @@ -1889,16 +1911,16 @@ bool ConnectBlock(const CBlock& block, CValidationState& state, CBlockIndex* pin // add this block to the view's block chain view.SetBestBlock(pindex->GetBlockHash()); - int64_t nTime3 = GetTimeMicros(); nTimeIndex += nTime3 - nTime2; - LogPrint("bench", " - Index writing: %.2fms [%.2fs]\n", 0.001 * (nTime3 - nTime2), nTimeIndex * 0.000001); + int64_t nTime5 = GetTimeMicros(); nTimeIndex += nTime5 - nTime4; + LogPrint("bench", " - Index writing: %.2fms [%.2fs]\n", 0.001 * (nTime5 - nTime4), nTimeIndex * 0.000001); // Watch for changes to the previous coinbase transaction. static uint256 hashPrevBestCoinBase; GetMainSignals().UpdatedTransaction(hashPrevBestCoinBase); hashPrevBestCoinBase = block.vtx[0].GetHash(); - int64_t nTime4 = GetTimeMicros(); nTimeCallbacks += nTime4 - nTime3; - LogPrint("bench", " - Callbacks: %.2fms [%.2fs]\n", 0.001 * (nTime4 - nTime3), nTimeCallbacks * 0.000001); + int64_t nTime6 = GetTimeMicros(); nTimeCallbacks += nTime6 - nTime5; + LogPrint("bench", " - Callbacks: %.2fms [%.2fs]\n", 0.001 * (nTime6 - nTime5), nTimeCallbacks * 0.000001); return true; } @@ -2781,9 +2803,8 @@ bool ContextualCheckBlock(const CBlock& block, CValidationState& state, CBlockIn return true; } -bool AcceptBlockHeader(const CBlockHeader& block, CValidationState& state, CBlockIndex** ppindex) +static bool AcceptBlockHeader(const CBlockHeader& block, CValidationState& state, const CChainParams& chainparams, CBlockIndex** ppindex=NULL) { - const CChainParams& chainparams = Params(); AssertLockHeld(cs_main); // Check for duplicate uint256 hash = block.GetHash(); @@ -2836,7 +2857,7 @@ bool AcceptBlock(const CBlock& block, CValidationState& state, CBlockIndex** ppi CBlockIndex *&pindex = *ppindex; - if (!AcceptBlockHeader(block, state, &pindex)) + if (!AcceptBlockHeader(block, state, chainparams, &pindex)) return false; // Try to process all requested blocks that we don't have, but only @@ -4310,10 +4331,10 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv, vRecv >> locator >> hashStop; LOCK(cs_main); - - if (IsInitialBlockDownload()) + if (IsInitialBlockDownload() && !pfrom->fWhitelisted) { + LogPrint("net", "Ignoring getheaders from peer=%d because node is in initial block download\n", pfrom->id); return true; - + } CBlockIndex* pindex = NULL; if (locator.IsNull()) { @@ -4500,7 +4521,7 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv, Misbehaving(pfrom->GetId(), 20); return error("non-continuous headers sequence"); } - if (!AcceptBlockHeader(header, state, &pindexLast)) { + if (!AcceptBlockHeader(header, state, chainparams, &pindexLast)) { int nDoS; if (state.IsInvalid(nDoS)) { if (nDoS > 0) |