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1658b8f82b
Transaction hashes are cached, it may not be intuitive that their sizes are actually recalculated every time. This is done before the other refactors to clarify why we want to avoid calling this method; Co-authored-by: maflcko <6399679+maflcko@users.noreply.github.com>
80 lines
2.5 KiB
C++
80 lines
2.5 KiB
C++
// Copyright (c) 2011-present The Bitcoin Core developers
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// Distributed under the MIT software license, see the accompanying
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// file COPYING or http://www.opensource.org/licenses/mit-license.php.
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#include <bench/bench.h>
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#include <chain.h>
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#include <chainparams.h>
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#include <consensus/consensus.h>
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#include <consensus/merkle.h>
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#include <consensus/validation.h>
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#include <pow.h>
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#include <primitives/block.h>
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#include <primitives/transaction.h>
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#include <random.h>
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#include <script/script.h>
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#include <sync.h>
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#include <test/util/setup_common.h>
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#include <uint256.h>
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#include <validation.h>
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#include <cassert>
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#include <cstdint>
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#include <memory>
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#include <string>
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#include <utility>
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#include <vector>
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static void DuplicateInputs(benchmark::Bench& bench)
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{
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const auto testing_setup = MakeNoLogFileContext<const TestingSetup>();
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const CScript SCRIPT_PUB{CScript(OP_TRUE)};
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const CChainParams& chainparams = Params();
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CBlock block{};
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CMutableTransaction coinbaseTx{};
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CMutableTransaction naughtyTx{};
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LOCK(cs_main);
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CBlockIndex* pindexPrev = testing_setup->m_node.chainman->ActiveChain().Tip();
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assert(pindexPrev != nullptr);
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block.nBits = GetNextWorkRequired(pindexPrev, &block, chainparams.GetConsensus());
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block.nNonce = 0;
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auto nHeight = pindexPrev->nHeight + 1;
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// Make a coinbase TX
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coinbaseTx.vin.resize(1);
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coinbaseTx.vin[0].prevout.SetNull();
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coinbaseTx.vout.resize(1);
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coinbaseTx.vout[0].scriptPubKey = SCRIPT_PUB;
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coinbaseTx.vout[0].nValue = GetBlockSubsidy(nHeight, chainparams.GetConsensus());
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coinbaseTx.vin[0].scriptSig = CScript() << nHeight << OP_0;
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naughtyTx.vout.resize(1);
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naughtyTx.vout[0].nValue = 0;
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naughtyTx.vout[0].scriptPubKey = SCRIPT_PUB;
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uint64_t n_inputs = (((MAX_BLOCK_SERIALIZED_SIZE / WITNESS_SCALE_FACTOR) - (CTransaction(coinbaseTx).ComputeTotalSize() + CTransaction(naughtyTx).ComputeTotalSize())) / 41) - 100;
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for (uint64_t x = 0; x < (n_inputs - 1); ++x) {
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naughtyTx.vin.emplace_back(Txid::FromUint256(GetRandHash()), 0, CScript(), 0);
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}
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naughtyTx.vin.emplace_back(naughtyTx.vin.back());
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block.vtx.push_back(MakeTransactionRef(std::move(coinbaseTx)));
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block.vtx.push_back(MakeTransactionRef(std::move(naughtyTx)));
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block.hashMerkleRoot = BlockMerkleRoot(block);
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bench.run([&] {
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BlockValidationState cvstate{};
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assert(!CheckBlock(block, cvstate, chainparams.GetConsensus(), false, false));
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assert(cvstate.GetRejectReason() == "bad-txns-inputs-duplicate");
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});
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}
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BENCHMARK(DuplicateInputs);
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