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3ddafceb9a
Instead of returning a TxGraph::Ref from TxGraph::AddTransaction(), pass in a TxGraph::Ref& which is updated to refer to the new transaction in that graph. This cleans up the usage somewhat, avoiding the need for dummy Refs in CTxMemPoolEntry constructor calls, but the motivation is that a future commit will allow a callback to passed to MakeTxGraph to define a fallback order on the transaction objects. This does not work when a Ref is created separately from the CTxMemPoolEntry it ends up living in, as passing the newly-created Ref to the callback would be UB before it's emplaced in its final CTxMemPoolEntry.
32 lines
1.5 KiB
C++
32 lines
1.5 KiB
C++
// Copyright (c) 2022-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 <consensus/amount.h>
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#include <consensus/consensus.h>
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#include <kernel/mempool_entry.h>
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#include <primitives/transaction.h>
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#include <test/fuzz/FuzzedDataProvider.h>
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#include <test/fuzz/util.h>
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#include <test/fuzz/util/mempool.h>
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#include <cassert>
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#include <cstdint>
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#include <limits>
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CTxMemPoolEntry ConsumeTxMemPoolEntry(FuzzedDataProvider& fuzzed_data_provider, const CTransaction& tx, uint32_t max_height) noexcept
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{
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// Avoid:
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// policy/feerate.cpp:28:34: runtime error: signed integer overflow: 34873208148477500 * 1000 cannot be represented in type 'long'
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//
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// Reproduce using CFeeRate(348732081484775, 10).GetFeePerK()
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const CAmount fee{ConsumeMoney(fuzzed_data_provider, /*max=*/std::numeric_limits<CAmount>::max() / CAmount{100'000})};
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assert(MoneyRange(fee));
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const int64_t time = fuzzed_data_provider.ConsumeIntegral<int64_t>();
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const uint64_t entry_sequence{fuzzed_data_provider.ConsumeIntegral<uint64_t>()};
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const auto entry_height{fuzzed_data_provider.ConsumeIntegralInRange<uint32_t>(0, max_height)};
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const bool spends_coinbase = fuzzed_data_provider.ConsumeBool();
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const unsigned int sig_op_cost = fuzzed_data_provider.ConsumeIntegralInRange<unsigned int>(0, MAX_BLOCK_SIGOPS_COST);
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return CTxMemPoolEntry{MakeTransactionRef(tx), fee, time, entry_height, entry_sequence, spends_coinbase, sig_op_cost, {}};
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}
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