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This is done in preparation for the next two commits, where the CMainSignals are de-globalized. This avoids adding new constructor arguments to the ChainstateManager and CTxMemPool classes over the next two commits. This could also allow future tests that are only interested in the internal behaviour of the classes to forgo instantiating the signals.
67 lines
2.7 KiB
C++
67 lines
2.7 KiB
C++
// Copyright (c) 2022 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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#ifndef BITCOIN_KERNEL_MEMPOOL_OPTIONS_H
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#define BITCOIN_KERNEL_MEMPOOL_OPTIONS_H
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#include <kernel/mempool_limits.h>
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#include <policy/feerate.h>
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#include <policy/policy.h>
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#include <chrono>
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#include <cstdint>
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#include <optional>
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class CMainSignals;
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/** Default for -maxmempool, maximum megabytes of mempool memory usage */
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static constexpr unsigned int DEFAULT_MAX_MEMPOOL_SIZE_MB{300};
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/** Default for -maxmempool when blocksonly is set */
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static constexpr unsigned int DEFAULT_BLOCKSONLY_MAX_MEMPOOL_SIZE_MB{5};
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/** Default for -mempoolexpiry, expiration time for mempool transactions in hours */
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static constexpr unsigned int DEFAULT_MEMPOOL_EXPIRY_HOURS{336};
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/** Default for -mempoolfullrbf, if the transaction replaceability signaling is ignored */
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static constexpr bool DEFAULT_MEMPOOL_FULL_RBF{false};
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/** Whether to fall back to legacy V1 serialization when writing mempool.dat */
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static constexpr bool DEFAULT_PERSIST_V1_DAT{false};
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/** Default for -acceptnonstdtxn */
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static constexpr bool DEFAULT_ACCEPT_NON_STD_TXN{false};
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namespace kernel {
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/**
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* Options struct containing options for constructing a CTxMemPool. Default
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* constructor populates the struct with sane default values which can be
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* modified.
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*
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* Most of the time, this struct should be referenced as CTxMemPool::Options.
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*/
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struct MemPoolOptions {
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/* The ratio used to determine how often sanity checks will run. */
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int check_ratio{0};
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int64_t max_size_bytes{DEFAULT_MAX_MEMPOOL_SIZE_MB * 1'000'000};
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std::chrono::seconds expiry{std::chrono::hours{DEFAULT_MEMPOOL_EXPIRY_HOURS}};
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CFeeRate incremental_relay_feerate{DEFAULT_INCREMENTAL_RELAY_FEE};
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/** A fee rate smaller than this is considered zero fee (for relaying, mining and transaction creation) */
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CFeeRate min_relay_feerate{DEFAULT_MIN_RELAY_TX_FEE};
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CFeeRate dust_relay_feerate{DUST_RELAY_TX_FEE};
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/**
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* A data carrying output is an unspendable output containing data. The script
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* type is designated as TxoutType::NULL_DATA.
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*
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* Maximum size of TxoutType::NULL_DATA scripts that this node considers standard.
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* If nullopt, any size is nonstandard.
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*/
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std::optional<unsigned> max_datacarrier_bytes{DEFAULT_ACCEPT_DATACARRIER ? std::optional{MAX_OP_RETURN_RELAY} : std::nullopt};
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bool permit_bare_multisig{DEFAULT_PERMIT_BAREMULTISIG};
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bool require_standard{true};
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bool full_rbf{DEFAULT_MEMPOOL_FULL_RBF};
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bool persist_v1_dat{DEFAULT_PERSIST_V1_DAT};
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MemPoolLimits limits{};
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CMainSignals* signals{nullptr};
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};
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} // namespace kernel
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#endif // BITCOIN_KERNEL_MEMPOOL_OPTIONS_H
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