diff options
Diffstat (limited to 'src/main.cpp')
-rw-r--r-- | src/main.cpp | 94 |
1 files changed, 40 insertions, 54 deletions
diff --git a/src/main.cpp b/src/main.cpp index 46118fff81..27ab677eb1 100644 --- a/src/main.cpp +++ b/src/main.cpp @@ -106,11 +106,6 @@ map<uint256, COrphanTx> mapOrphanTransactions GUARDED_BY(cs_main); map<COutPoint, set<map<uint256, COrphanTx>::iterator, IteratorComparator>> mapOrphanTransactionsByPrev GUARDED_BY(cs_main); void EraseOrphansFor(NodeId peer) EXCLUSIVE_LOCKS_REQUIRED(cs_main); -/** - * Returns true if there are nRequired or more blocks of minVersion or above - * in the last Consensus::Params::nMajorityWindow blocks, starting at pstart and going backwards. - */ -static bool IsSuperMajority(int minVersion, const CBlockIndex* pstart, unsigned nRequired, const Consensus::Params& consensusParams); static void CheckBlockIndex(const Consensus::Params& consensusParams); /** Constant stuff for coinbase transactions we create: */ @@ -1179,7 +1174,7 @@ bool AcceptToMemoryPoolWorker(CTxMemPool& pool, CValidationState& state, const C // nSequence >= maxint-1 on all inputs. // // maxint-1 is picked to still allow use of nLockTime by - // non-replacable transactions. All inputs rather than just one + // non-replaceable transactions. All inputs rather than just one // is for the sake of multi-party protocols, where we don't // want a single party to be able to disable replacement. // @@ -1546,7 +1541,7 @@ bool AcceptToMemoryPoolWorker(CTxMemPool& pool, CValidationState& state, const C } } - SyncWithWallets(tx, NULL, NULL); + SyncWithWallets(tx, NULL); return true; } @@ -1993,7 +1988,7 @@ bool CheckInputs(const CTransaction& tx, CValidationState &state, const CCoinsVi // is safe because block merkle hashes are still computed and checked, // and any change will be caught at the next checkpoint. Of course, if // the checkpoint is for a chain that's invalid due to false scriptSigs - // this optimisation would allow an invalid chain to be accepted. + // this optimization would allow an invalid chain to be accepted. if (fScriptChecks) { for (unsigned int i = 0; i < tx.vin.size(); i++) { const COutPoint &prevout = tx.vin[i].prevout; @@ -2372,15 +2367,13 @@ bool ConnectBlock(const CBlock& block, CValidationState& state, CBlockIndex* pin unsigned int flags = fStrictPayToScriptHash ? SCRIPT_VERIFY_P2SH : SCRIPT_VERIFY_NONE; - // Start enforcing the DERSIG (BIP66) rules, for block.nVersion=3 blocks, - // when 75% of the network has upgraded: - if (block.nVersion >= 3 && IsSuperMajority(3, pindex->pprev, chainparams.GetConsensus().nMajorityEnforceBlockUpgrade, chainparams.GetConsensus())) { + // Start enforcing the DERSIG (BIP66) rule + if (pindex->nHeight >= chainparams.GetConsensus().BIP66Height) { flags |= SCRIPT_VERIFY_DERSIG; } - // Start enforcing CHECKLOCKTIMEVERIFY, (BIP65) for block.nVersion=4 - // blocks, when 75% of the network has upgraded: - if (block.nVersion >= 4 && IsSuperMajority(4, pindex->pprev, chainparams.GetConsensus().nMajorityEnforceBlockUpgrade, chainparams.GetConsensus())) { + // Start enforcing CHECKLOCKTIMEVERIFY (BIP65) rule + if (pindex->nHeight >= chainparams.GetConsensus().BIP65Height) { flags |= SCRIPT_VERIFY_CHECKLOCKTIMEVERIFY; } @@ -2777,7 +2770,7 @@ bool static DisconnectTip(CValidationState& state, const CChainParams& chainpara // Let wallets know transactions went from 1-confirmed to // 0-confirmed or conflicted: BOOST_FOREACH(const CTransaction &tx, block.vtx) { - SyncWithWallets(tx, pindexDelete->pprev, NULL); + SyncWithWallets(tx, pindexDelete->pprev); } return true; } @@ -2792,7 +2785,7 @@ static int64_t nTimePostConnect = 0; * 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, const CChainParams& chainparams, CBlockIndex* pindexNew, const CBlock* pblock) +bool static ConnectTip(CValidationState& state, const CChainParams& chainparams, CBlockIndex* pindexNew, const CBlock* pblock, std::list<CTransaction> &txConflicted, std::vector<std::tuple<CTransaction,CBlockIndex*,int> > &txChanged) { assert(pindexNew->pprev == chainActive.Tip()); // Read block from disk. @@ -2828,20 +2821,13 @@ bool static ConnectTip(CValidationState& state, const CChainParams& chainparams, return false; int64_t nTime5 = GetTimeMicros(); nTimeChainState += nTime5 - nTime4; LogPrint("bench", " - Writing chainstate: %.2fms [%.2fs]\n", (nTime5 - nTime4) * 0.001, nTimeChainState * 0.000001); - // Remove conflicting transactions from the mempool. - list<CTransaction> txConflicted; + // Remove conflicting transactions from the mempool.; mempool.removeForBlock(pblock->vtx, pindexNew->nHeight, txConflicted, !IsInitialBlockDownload()); // Update chainActive & related variables. UpdateTip(pindexNew, chainparams); - // Tell wallet about transactions that went from mempool - // to conflicted: - BOOST_FOREACH(const CTransaction &tx, txConflicted) { - SyncWithWallets(tx, pindexNew, NULL); - } - // ... and about transactions that got confirmed: - BOOST_FOREACH(const CTransaction &tx, pblock->vtx) { - SyncWithWallets(tx, pindexNew, pblock); - } + + for(unsigned int i=0; i < pblock->vtx.size(); i++) + txChanged.push_back(std::make_tuple(pblock->vtx[i], pindexNew, i)); int64_t nTime6 = GetTimeMicros(); nTimePostConnect += nTime6 - nTime5; nTimeTotal += nTime6 - nTime1; LogPrint("bench", " - Connect postprocess: %.2fms [%.2fs]\n", (nTime6 - nTime5) * 0.001, nTimePostConnect * 0.000001); @@ -2923,7 +2909,7 @@ static void PruneBlockIndexCandidates() { * Try to make some progress towards making pindexMostWork the active block. * pblock is either NULL or a pointer to a CBlock corresponding to pindexMostWork. */ -static bool ActivateBestChainStep(CValidationState& state, const CChainParams& chainparams, CBlockIndex* pindexMostWork, const CBlock* pblock, bool& fInvalidFound) +static bool ActivateBestChainStep(CValidationState& state, const CChainParams& chainparams, CBlockIndex* pindexMostWork, const CBlock* pblock, bool& fInvalidFound, std::list<CTransaction>& txConflicted, std::vector<std::tuple<CTransaction,CBlockIndex*,int> >& txChanged) { AssertLockHeld(cs_main); const CBlockIndex *pindexOldTip = chainActive.Tip(); @@ -2956,7 +2942,7 @@ static bool ActivateBestChainStep(CValidationState& state, const CChainParams& c // Connect new blocks. BOOST_REVERSE_FOREACH(CBlockIndex *pindexConnect, vpindexToConnect) { - if (!ConnectTip(state, chainparams, pindexConnect, pindexConnect == pindexMostWork ? pblock : NULL)) { + if (!ConnectTip(state, chainparams, pindexConnect, pindexConnect == pindexMostWork ? pblock : NULL, txConflicted, txChanged)) { if (state.IsInvalid()) { // The block violates a consensus rule. if (!state.CorruptionPossible()) @@ -3031,6 +3017,8 @@ bool ActivateBestChain(CValidationState &state, const CChainParams& chainparams, break; const CBlockIndex *pindexFork; + std::list<CTransaction> txConflicted; + std::vector<std::tuple<CTransaction,CBlockIndex*,int> > txChanged; bool fInitialDownload; int nNewHeight; { @@ -3045,7 +3033,7 @@ bool ActivateBestChain(CValidationState &state, const CChainParams& chainparams, return true; bool fInvalidFound = false; - if (!ActivateBestChainStep(state, chainparams, pindexMostWork, pblock && pblock->GetHash() == pindexMostWork->GetBlockHash() ? pblock : NULL, fInvalidFound)) + if (!ActivateBestChainStep(state, chainparams, pindexMostWork, pblock && pblock->GetHash() == pindexMostWork->GetBlockHash() ? pblock : NULL, fInvalidFound, txConflicted, txChanged)) return false; if (fInvalidFound) { @@ -3060,6 +3048,17 @@ bool ActivateBestChain(CValidationState &state, const CChainParams& chainparams, // When we reach this point, we switched to a new tip (stored in pindexNewTip). // Notifications/callbacks that can run without cs_main + + // throw all transactions though the signal-interface + // while _not_ holding the cs_main lock + BOOST_FOREACH(const CTransaction &tx, txConflicted) + { + SyncWithWallets(tx, pindexNewTip); + } + // ... and about transactions that got confirmed: + for(unsigned int i = 0; i < txChanged.size(); i++) + SyncWithWallets(std::get<0>(txChanged[i]), std::get<1>(txChanged[i]), std::get<2>(txChanged[i])); + // Always notify the UI if a new block tip was connected if (pindexFork != pindexNewTip) { uiInterface.NotifyBlockTip(fInitialDownload, pindexNewTip); @@ -3504,6 +3503,7 @@ std::vector<unsigned char> GenerateCoinbaseCommitment(CBlock& block, const CBloc bool ContextualCheckBlockHeader(const CBlockHeader& block, CValidationState& state, const Consensus::Params& consensusParams, const CBlockIndex* pindexPrev, int64_t nAdjustedTime) { + const int nHeight = pindexPrev == NULL ? 0 : pindexPrev->nHeight + 1; // Check proof of work if (block.nBits != GetNextWorkRequired(pindexPrev, &block, consensusParams)) return state.DoS(100, false, REJECT_INVALID, "bad-diffbits", false, "incorrect proof of work"); @@ -3517,10 +3517,12 @@ bool ContextualCheckBlockHeader(const CBlockHeader& block, CValidationState& sta return state.Invalid(false, REJECT_INVALID, "time-too-new", "block timestamp too far in the future"); // Reject outdated version blocks when 95% (75% on testnet) of the network has upgraded: - for (int32_t version = 2; version < 5; ++version) // check for version 2, 3 and 4 upgrades - if (block.nVersion < version && IsSuperMajority(version, pindexPrev, consensusParams.nMajorityRejectBlockOutdated, consensusParams)) - return state.Invalid(false, REJECT_OBSOLETE, strprintf("bad-version(0x%08x)", version - 1), - strprintf("rejected nVersion=0x%08x block", version - 1)); + // check for version 2, 3 and 4 upgrades + if((block.nVersion < 2 && nHeight >= consensusParams.BIP34Height) || + (block.nVersion < 3 && nHeight >= consensusParams.BIP66Height) || + (block.nVersion < 4 && nHeight >= consensusParams.BIP65Height)) + return state.Invalid(false, REJECT_OBSOLETE, strprintf("bad-version(0x%08x)", block.nVersion), + strprintf("rejected nVersion=0x%08x block", block.nVersion)); return true; } @@ -3546,9 +3548,8 @@ bool ContextualCheckBlock(const CBlock& block, CValidationState& state, const Co } } - // Enforce block.nVersion=2 rule that the coinbase starts with serialized block height - // if 750 of the last 1,000 blocks are version 2 or greater (51/100 if testnet): - if (block.nVersion >= 2 && IsSuperMajority(2, pindexPrev, consensusParams.nMajorityEnforceBlockUpgrade, consensusParams)) + // Enforce rule that the coinbase starts with serialized block height + if (nHeight >= consensusParams.BIP34Height) { CScript expect = CScript() << nHeight; if (block.vtx[0].vin[0].scriptSig.size() < expect.size() || @@ -3722,19 +3723,6 @@ static bool AcceptBlock(const CBlock& block, CValidationState& state, const CCha return true; } -static bool IsSuperMajority(int minVersion, const CBlockIndex* pstart, unsigned nRequired, const Consensus::Params& consensusParams) -{ - unsigned int nFound = 0; - for (int i = 0; i < consensusParams.nMajorityWindow && nFound < nRequired && pstart != NULL; i++) - { - if (pstart->nVersion >= minVersion) - ++nFound; - pstart = pstart->pprev; - } - return (nFound >= nRequired); -} - - bool ProcessNewBlock(CValidationState& state, const CChainParams& chainparams, CNode* pfrom, const CBlock* pblock, bool fForceProcessing, const CDiskBlockPos* dbp) { { @@ -3954,7 +3942,7 @@ CBlockIndex * InsertBlockIndex(uint256 hash) // Create new CBlockIndex* pindexNew = new CBlockIndex(); if (!pindexNew) - throw runtime_error("LoadBlockIndex(): new CBlockIndex failed"); + throw runtime_error(std::string(__func__) + ": new CBlockIndex failed"); mi = mapBlockIndex.insert(make_pair(hash, pindexNew)).first; pindexNew->phashBlock = &((*mi).first); @@ -4331,8 +4319,6 @@ bool InitBlockIndex(const CChainParams& chainparams) CBlockIndex *pindex = AddToBlockIndex(block); if (!ReceivedBlockTransactions(block, state, pindex, blockPos)) return error("LoadBlockIndex(): genesis block not accepted"); - if (!ActivateBestChain(state, chainparams, &block)) - return error("LoadBlockIndex(): genesis block cannot be activated"); // Force a chainstate write so that when we VerifyDB in a moment, it doesn't check stale data return FlushStateToDisk(state, FLUSH_STATE_ALWAYS); } catch (const std::runtime_error& e) { @@ -4815,7 +4801,7 @@ void static ProcessGetData(CNode* pfrom, const Consensus::Params& consensusParam { // If a peer is asking for old blocks, we're almost guaranteed // they wont have a useful mempool to match against a compact block, - // and we dont feel like constructing the object for them, so + // and we don't feel like constructing the object for them, so // instead we respond with the full, non-compact block. if (mi->second->nHeight >= chainActive.Height() - 10) { CBlockHeaderAndShortTxIDs cmpctblock(block); |