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Stable release v32.1bitcoin/bitcoin · f0de87f04062 ↗3,020 source files · 47.5 MB stored on the server440 file guides

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1// Copyright (c) 2023-present The Bitcoin Core developers
2// Distributed under the MIT software license, see the accompanying
3// file COPYING or http://www.opensource.org/licenses/mit-license.php.
4//
5#include <boost/test/unit_test.hpp>
6#include <core_memusage.h>
7#include <kernel/disconnected_transactions.h>
8#include <test/util/setup_common.h>
9
10BOOST_AUTO_TEST_SUITE(disconnected_transactions)
11
12//! Tests that DisconnectedBlockTransactions limits its own memory properly
13BOOST_FIXTURE_TEST_CASE(disconnectpool_memory_limits, TestChain100Setup)
14{
15    // Use the coinbase transactions from TestChain100Setup. It doesn't matter whether these
16    // transactions would realistically be in a block together, they just need distinct txids and
17    // uniform size for this test to work.
18    std::vector<CTransactionRef> block_vtx(m_coinbase_txns);
19    BOOST_CHECK_EQUAL(block_vtx.size(), 100);
20
21    // Roughly estimate sizes to sanity check that DisconnectedBlockTransactions::DynamicMemoryUsage
22    // is within an expected range.
23
24    // Overhead for the hashmap depends on number of buckets
25    std::unordered_map<Txid, CTransaction*, SaltedTxidHasher> temp_map;
26    temp_map.reserve(1);
27    const size_t MAP_1{memusage::DynamicUsage(temp_map)};
28    temp_map.reserve(100);
29    const size_t MAP_100{memusage::DynamicUsage(temp_map)};
30
31    const size_t TX_USAGE{RecursiveDynamicUsage(block_vtx.front())};
32    for (const auto& tx : block_vtx)
33        BOOST_CHECK_EQUAL(RecursiveDynamicUsage(tx), TX_USAGE);
34
35    // Our overall formula is unordered map overhead + usage per entry.
36    // Implementations may vary, but we're trying to guess the usage of data structures.
37    const size_t ENTRY_USAGE_ESTIMATE{
38        TX_USAGE
39        // list entry: 2 pointers (next pointer and prev pointer) + element itself
40        + memusage::MallocUsage((2 * sizeof(void*)) + sizeof(decltype(block_vtx)::value_type))
41        // unordered map: 1 pointer for the hashtable + key and value
42        + memusage::MallocUsage(sizeof(void*) + sizeof(decltype(temp_map)::key_type)
43                                + sizeof(decltype(temp_map)::value_type))};
44
45    // DisconnectedBlockTransactions that's just big enough for 1 transaction.
46    {
47        DisconnectedBlockTransactions disconnectpool{MAP_1 + ENTRY_USAGE_ESTIMATE};
48        // Add just 2 (and not all 100) transactions to keep the unordered map's hashtable overhead
49        // to a minimum and avoid all (instead of all but 1) transactions getting evicted.
50        std::vector<CTransactionRef> two_txns({block_vtx.at(0), block_vtx.at(1)});
51        auto evicted_txns{disconnectpool.AddTransactionsFromBlock(two_txns)};
52        BOOST_CHECK(disconnectpool.DynamicMemoryUsage() <= MAP_1 + ENTRY_USAGE_ESTIMATE);
53
54        // Only 1 transaction can be kept
55        BOOST_CHECK_EQUAL(1, evicted_txns.size());
56        // Transactions are added from back to front and eviction is FIFO.
57        BOOST_CHECK_EQUAL(block_vtx.at(1), evicted_txns.front());
58
59        disconnectpool.clear();
60    }
61
62    // DisconnectedBlockTransactions with a comfortable maximum memory usage so that nothing is evicted.
63    // Record usage so we can check size limiting in the next test.
64    size_t usage_full{0};
65    {
66        const size_t USAGE_100_OVERESTIMATE{MAP_100 + ENTRY_USAGE_ESTIMATE * 100};
67        DisconnectedBlockTransactions disconnectpool{USAGE_100_OVERESTIMATE};
68        auto evicted_txns{disconnectpool.AddTransactionsFromBlock(block_vtx)};
69        BOOST_CHECK_EQUAL(evicted_txns.size(), 0);
70        BOOST_CHECK(disconnectpool.DynamicMemoryUsage() <= USAGE_100_OVERESTIMATE);
71
72        usage_full = disconnectpool.DynamicMemoryUsage();
73
74        disconnectpool.clear();
75    }
76
77    // DisconnectedBlockTransactions that's just a little too small for all of the transactions.
78    {
79        const size_t MAX_MEMUSAGE_99{usage_full - sizeof(void*)};
80        DisconnectedBlockTransactions disconnectpool{MAX_MEMUSAGE_99};
81        auto evicted_txns{disconnectpool.AddTransactionsFromBlock(block_vtx)};
82        BOOST_CHECK(disconnectpool.DynamicMemoryUsage() <= MAX_MEMUSAGE_99);
83
84        // Only 1 transaction needed to be evicted
85        BOOST_CHECK_EQUAL(1, evicted_txns.size());
86
87        // Transactions are added from back to front and eviction is FIFO.
88        // The last transaction of block_vtx should be the first to be evicted.
89        BOOST_CHECK_EQUAL(block_vtx.back(), evicted_txns.front());
90
91        disconnectpool.clear();
92    }
93}
94
95BOOST_AUTO_TEST_SUITE_END()
96

src/wallet/receive.cpp

src/wallet/coinselection.cpp

src/consensus/validation.h

src/primitives/transaction.cpp

src/script/descriptor.cpp

src/bitcoin-cli.cpp

src/rpc/blockchain.cpp

src/rpc/rawtransaction.cpp

src/init.cpp

src/crypto/sha256.cpp

src/consensus/merkle.h

src/consensus/tx_check.h

src/consensus/tx_verify.h

src/policy/feerate.h

src/policy/feerate.cpp

src/primitives/transaction_identifier.h

src/chainparamsbase.h

src/chainparamsbase.cpp

src/util/moneystr.cpp

src/crypto/ripemd160.h

src/crypto/sha1.h

src/crypto/sha512.h

src/crypto/hmac_sha256.h

src/crypto/hmac_sha512.h

src/crypto/hmac_sha256.cpp

src/crypto/hmac_sha512.cpp

src/crypto/hkdf_sha256_32.h

src/crypto/hkdf_sha256_32.cpp

src/support/cleanse.h

src/support/cleanse.cpp

src/crypto/siphash.cpp

src/crypto/muhash.h

src/crypto/chacha20.h

src/crypto/poly1305.h

src/crypto/chacha20poly1305.h

src/crypto/chacha20poly1305.cpp

src/util/chaintype.cpp

src/util/obfuscation.h

src/util/byte_units.h

src/util/overflow.h

src/blockencodings.cpp

src/net_permissions.cpp

src/policy/packages.cpp

src/policy/rbf.cpp

src/policy/truc_policy.cpp

src/policy/ephemeral_policy.cpp

src/policy/settings.cpp

src/policy/policy.cpp

src/node/transaction.cpp

src/node/coin.cpp

src/rpc/client.cpp

src/rpc/external_signer.cpp

src/rpc/request.cpp

src/rpc/server_util.cpp

src/rpc/fees.cpp

src/rpc/output_script.cpp

src/rpc/rawtransaction_util.cpp

src/rpc/rawtransaction_util.h

src/rpc/register.h

src/rpc/request.h

src/rpc/server_util.h

src/rpc/protocol.h

src/rpc/server.h

src/rpc/signmessage.cpp

src/rpc/txoutproof.cpp

src/rpc/util.cpp

src/rpc/util.h

src/wallet/rpc/addresses.cpp

src/wallet/rpc/backup.cpp

src/wallet/rpc/coins.cpp

src/wallet/rpc/encrypt.cpp

src/wallet/rpc/signmessage.cpp

src/wallet/rpc/util.cpp

src/wallet/rpc/util.h

src/wallet/coincontrol.cpp

src/wallet/coincontrol.h

src/wallet/context.cpp

src/wallet/context.h

src/wallet/crypter.cpp

src/wallet/crypter.h

src/wallet/db.cpp

src/wallet/export.cpp

src/wallet/external_signer_scriptpubkeyman.cpp

src/wallet/rpc/spend.cpp

src/wallet/rpc/transactions.cpp

src/wallet/rpc/wallet.cpp

src/wallet/feebumper.cpp

src/wallet/feebumper.h

src/index/base.h

src/index/base.cpp

src/index/txindex.h

src/index/txindex.cpp

src/index/txindex_key.h

src/index/txospenderindex.h

src/index/txospenderindex.cpp

src/index/blockfilterindex.h

src/index/blockfilterindex.cpp

src/index/coinstatsindex.h

src/index/coinstatsindex.cpp

src/index/db_key.h

src/index/disktxpos.h

src/kernel/chain.cpp

src/kernel/chain.h

src/kernel/checks.cpp

src/kernel/checks.h

src/kernel/context.cpp

src/kernel/context.h

src/kernel/cs_main.cpp

src/kernel/cs_main.h

src/kernel/disconnected_transactions.cpp

src/kernel/disconnected_transactions.h

src/kernel/mempool_removal_reason.cpp

src/kernel/mempool_removal_reason.h

src/kernel/coinstats.cpp

src/kernel/coinstats.h

src/kernel/chainparams.cpp

src/kernel/chainparams.h

src/wallet/sqlite.cpp

src/wallet/sqlite.h

src/wallet/transaction.cpp

src/wallet/transaction.h

src/wallet/dump.cpp

src/wallet/dump.h

src/wallet/init.cpp

src/wallet/walletutil.cpp

src/wallet/walletutil.h

src/wallet/wallettool.cpp

src/wallet/wallettool.h

src/wallet/export.h

src/wallet/migrate.cpp

src/wallet/migrate.h

src/wallet/db.h

src/wallet/walletdb.cpp

src/wallet/interfaces.cpp

src/wallet/scriptpubkeyman.cpp

src/wallet/scriptpubkeyman.h

src/kernel/bitcoinkernel.cpp

src/kernel/bitcoinkernel.h

src/kernel/bitcoinkernel_wrapper.h

src/node/chainstate.cpp

src/node/chainstate.h

src/node/blockstorage.cpp

src/node/blockstorage.h

src/node/mempool_persist.cpp

src/node/mempool_persist.h

src/node/utxo_snapshot.cpp

src/node/utxo_snapshot.h

src/node/kernel_notifications.cpp

src/node/kernel_notifications.h

src/node/blockmanager_args.cpp

src/kernel/blockmanager_opts.h

src/util/expected.cpp

src/policy/settings.h

src/util/types.h

src/kernel/messagestartchars.h

src/kernel/warning.h

src/util/exception.h

src/common/license_info.h

src/node/coins_view_args.h

src/node/database_args.h

src/util/batchpriority.h

src/util/ui_change_type.h

src/node/coins_view_args.cpp

src/node/peerman_args.h

src/util/serfloat.h

src/node/blockmanager_args.h

src/node/database_args.cpp

src/util/overloaded.h

src/interfaces/types.h

src/node/chainstatemanager_args.h

src/node/minisketchwrapper.h

src/util/macros.h

src/util/syserror.h

src/common/run_command.h

src/util/bytevectorhash.cpp

src/node/mempool_persist_args.cpp

src/util/exec.h

src/util/rbf.h

src/crypto/hex_base.h

src/node/mempool_persist_args.h

src/interfaces/echo.h

src/util/any.h

src/util/batchpriority.cpp

src/util/threadnames.h

src/node/coin.h

src/node/mempool_args.h

src/util/asmap.h

src/util/bytevectorhash.h

src/node/context.cpp

src/util/insert.h

src/util/readwritefile.h

src/node/peerman_args.cpp

src/node/interface_ui.cpp

src/interfaces/handler.h

src/node/mining_args.h

src/util/hasher.cpp

src/common/init.h

src/kernel/mempool_limits.h

src/common/system.h

src/crypto/sha3.h

src/util/threadinterrupt.cpp

src/node/protocol_version.h

src/util/exception.cpp

src/common/messages.h

src/node/connection_types.cpp

src/util/bip32.h

src/common/license_info.cpp

src/util/stdmutex.h

src/common/run_command.cpp

src/util/check.cpp

src/util/golombrice.h

src/node/types.h

src/node/timeoffsets.h

src/util/readwritefile.cpp

src/util/fastrange.h

src/util/signalinterrupt.h

src/util/task_runner.h

src/util/syserror.cpp

src/common/interfaces.cpp

src/common/types.h

src/util/threadinterrupt.h

src/kernel/chainstatemanager_opts.h

src/node/psbt.h

src/policy/ephemeral_policy.h

src/util/trace.h

src/common/url.cpp

src/kernel/mempool_options.h

src/util/serfloat.cpp

src/kernel/notifications_interface.h

src/node/timeoffsets.cpp

src/node/warnings.cpp

src/util/hash_type.h

src/crypto/hex_base.cpp

src/node/eviction.h

src/util/tokenbucket.h

src/crypto/aes.h

src/common/pcp.h

src/util/feefrac.cpp

src/node/transaction.h

src/util/threadnames.cpp

src/common/signmessage.h

src/util/exec.cpp

src/util/signalinterrupt.cpp

src/clientversion.cpp

src/common/signmessage.cpp

src/compat/assumptions.h

src/compat/byteswap.h

src/deploymentinfo.cpp

src/deploymentinfo.h

src/deploymentstatus.cpp

src/deploymentstatus.h

src/dummywallet.cpp

src/external_signer.h

src/init/bitcoin-gui.cpp

src/init/bitcoin-node.cpp

src/init/bitcoin-qt.cpp

src/init/bitcoin-wallet.cpp

src/init/bitcoind.cpp

src/init/common.h

src/interfaces/init.h

src/interfaces/ipc.h

src/key_io.h

src/logging/categories.h

src/logging/timer.h

src/mapport.h

src/musig.h

src/net_permissions.h

src/netgroup.h

src/netmessagemaker.h

src/node/chainstatemanager_args.cpp

src/node/connection_types.h

src/node/context.h

src/node/interface_ui.h

src/node/mempool_args.cpp

src/node/mining_args.cpp

src/node/minisketchwrapper.cpp

src/node/txreconciliation.h

src/policy/fees/estimator_args.cpp

src/policy/fees/estimator_args.h

src/policy/fees/estimator_man.cpp

src/policy/fees/estimator_man.h

src/policy/packages.h

src/policy/rbf.h

src/policy/truc_policy.h

src/pow.h

src/primitives/block.cpp

src/randomenv.h

src/rest.h

src/script/keyorigin.h

src/script/parsing.cpp

src/script/parsing.h

src/script/script_error.h

src/script/sigcache.cpp

src/script/sigcache.h

src/script/solver.h

src/script/verify_flags.h

src/semaphore_grant.h

src/signet.h

src/span.h

src/support/allocators/secure.h

src/support/allocators/zeroafterfree.h

src/util/tokenpipe.cpp

src/util/translation.h

src/util/vector.h

src/versionbits.h

src/versionbits_impl.h

src/wallet/external_signer_scriptpubkeyman.h

src/wallet/fees.h

src/wallet/load.h

src/wallet/receive.h

src/wallet/rpc/wallet.h

src/wallet/types.h

src/walletinitinterface.h

src/zmq/zmqabstractnotifier.cpp

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