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

Release published 2026-10-28 · Snapshot fetched 2026-11-01. Latest stable release at fetch time; development branches and Git history are excluded. Only the selected code window and visible folders load here.

21,932 bytes · SHA-256 ac0e35c10c8113a8… · View upstream ↗

1// Copyright (c) 2011-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 <common/system.h>
6#include <policy/policy.h>
7#include <test/util/time.h>
8#include <test/util/txmempool.h>
9#include <txmempool.h>
10#include <util/time.h>
11
12#include <test/util/setup_common.h>
13
14#include <boost/test/unit_test.hpp>
15#include <vector>
16
17BOOST_FIXTURE_TEST_SUITE(mempool_tests, TestingSetup)
18
19static constexpr auto REMOVAL_REASON_DUMMY = MemPoolRemovalReason::REPLACED;
20
21class MemPoolTest final : public CTxMemPool
22{
23public:
24    using CTxMemPool::GetMinFee;
25};
26
27BOOST_AUTO_TEST_CASE(MempoolLookupTest)
28{
29    auto& pool = static_cast<MemPoolTest&>(*Assert(m_node.mempool));
30    LOCK2(cs_main, pool.cs);
31    TestMemPoolEntryHelper entry;
32
33    CMutableTransaction tx = CMutableTransaction();
34    tx.vin.resize(1);
35    tx.vin[0].scriptSig = CScript() << OP_1;
36    tx.vout.resize(1);
37    tx.vout[0].scriptPubKey = CScript() << OP_1 << OP_EQUAL;
38    tx.vout[0].nValue = 10 * COIN;
39
40    // Not in the mempool, so can't find it by txid or wtxid
41    BOOST_CHECK(!pool.get(tx.GetHash()));
42    BOOST_CHECK(!pool.get(CTransaction(tx).GetWitnessHash()));
43
44    TryAddToMempool(pool, entry.Fee(1000LL).FromTx(tx));
45
46    // Lookup by Txid
47    BOOST_CHECK(pool.get(tx.GetHash()));
48
49    // Lookup by Wtxid
50    BOOST_CHECK(pool.get(CTransaction(tx).GetWitnessHash()));
51}
52
53BOOST_AUTO_TEST_CASE(MempoolRemoveTest)
54{
55    // Test CTxMemPool::remove functionality
56
57    TestMemPoolEntryHelper entry;
58    // Parent transaction with three children,
59    // and three grand-children:
60    CMutableTransaction txParent;
61    txParent.vin.resize(1);
62    txParent.vin[0].scriptSig = CScript() << OP_11;
63    txParent.vout.resize(3);
64    for (int i = 0; i < 3; i++)
65    {
66        txParent.vout[i].scriptPubKey = CScript() << OP_11 << OP_EQUAL;
67        txParent.vout[i].nValue = 33000LL;
68    }
69    CMutableTransaction txChild[3];
70    for (int i = 0; i < 3; i++)
71    {
72        txChild[i].vin.resize(1);
73        txChild[i].vin[0].scriptSig = CScript() << OP_11;
74        txChild[i].vin[0].prevout.hash = txParent.GetHash();
75        txChild[i].vin[0].prevout.n = i;
76        txChild[i].vout.resize(1);
77        txChild[i].vout[0].scriptPubKey = CScript() << OP_11 << OP_EQUAL;
78        txChild[i].vout[0].nValue = 11000LL;
79    }
80    CMutableTransaction txGrandChild[3];
81    for (int i = 0; i < 3; i++)
82    {
83        txGrandChild[i].vin.resize(1);
84        txGrandChild[i].vin[0].scriptSig = CScript() << OP_11;
85        txGrandChild[i].vin[0].prevout.hash = txChild[i].GetHash();
86        txGrandChild[i].vin[0].prevout.n = 0;
87        txGrandChild[i].vout.resize(1);
88        txGrandChild[i].vout[0].scriptPubKey = CScript() << OP_11 << OP_EQUAL;
89        txGrandChild[i].vout[0].nValue = 11000LL;
90    }
91
92
93    CTxMemPool& testPool = *Assert(m_node.mempool);
94    LOCK2(::cs_main, testPool.cs);
95
96    // Nothing in pool, remove should do nothing:
97    unsigned int poolSize = testPool.size();
98    testPool.removeRecursive(CTransaction(txParent), REMOVAL_REASON_DUMMY);
99    BOOST_CHECK_EQUAL(testPool.size(), poolSize);
100
101    // Just the parent:
102    TryAddToMempool(testPool, entry.FromTx(txParent));
103    poolSize = testPool.size();
104    testPool.removeRecursive(CTransaction(txParent), REMOVAL_REASON_DUMMY);
105    BOOST_CHECK_EQUAL(testPool.size(), poolSize - 1);
106
107    // Parent, children, grandchildren:
108    TryAddToMempool(testPool, entry.FromTx(txParent));
109    for (int i = 0; i < 3; i++)
110    {
111        TryAddToMempool(testPool, entry.FromTx(txChild[i]));
112        TryAddToMempool(testPool, entry.FromTx(txGrandChild[i]));
113    }
114    // Remove Child[0], GrandChild[0] should be removed:
115    poolSize = testPool.size();
116    testPool.removeRecursive(CTransaction(txChild[0]), REMOVAL_REASON_DUMMY);
117    BOOST_CHECK_EQUAL(testPool.size(), poolSize - 2);
118    // ... make sure grandchild and child are gone:
119    poolSize = testPool.size();
120    testPool.removeRecursive(CTransaction(txGrandChild[0]), REMOVAL_REASON_DUMMY);
121    BOOST_CHECK_EQUAL(testPool.size(), poolSize);
122    poolSize = testPool.size();
123    testPool.removeRecursive(CTransaction(txChild[0]), REMOVAL_REASON_DUMMY);
124    BOOST_CHECK_EQUAL(testPool.size(), poolSize);
125    // Remove parent, all children/grandchildren should go:
126    poolSize = testPool.size();
127    testPool.removeRecursive(CTransaction(txParent), REMOVAL_REASON_DUMMY);
128    BOOST_CHECK_EQUAL(testPool.size(), poolSize - 5);
129    BOOST_CHECK_EQUAL(testPool.size(), 0U);
130
131    // Add children and grandchildren, but NOT the parent (simulate the parent being in a block)
132    for (int i = 0; i < 3; i++)
133    {
134        TryAddToMempool(testPool, entry.FromTx(txChild[i]));
135        TryAddToMempool(testPool, entry.FromTx(txGrandChild[i]));
136    }
137    // Now remove the parent, as might happen if a block-re-org occurs but the parent cannot be
138    // put into the mempool (maybe because it is non-standard):
139    poolSize = testPool.size();
140    testPool.removeRecursive(CTransaction(txParent), REMOVAL_REASON_DUMMY);
141    BOOST_CHECK_EQUAL(testPool.size(), poolSize - 6);
142    BOOST_CHECK_EQUAL(testPool.size(), 0U);
143}
144
145BOOST_AUTO_TEST_CASE(MempoolSizeLimitTest)
146{
147    auto& pool = static_cast<MemPoolTest&>(*Assert(m_node.mempool));
148    LOCK2(cs_main, pool.cs);
149    TestMemPoolEntryHelper entry;
150
151    CMutableTransaction tx1 = CMutableTransaction();
152    tx1.vin.resize(1);
153    tx1.vin[0].scriptSig = CScript() << OP_1;
154    tx1.vout.resize(1);
155    tx1.vout[0].scriptPubKey = CScript() << OP_1 << OP_EQUAL;
156    tx1.vout[0].nValue = 10 * COIN;
157    TryAddToMempool(pool, entry.Fee(1000LL).FromTx(tx1));
158
159    CMutableTransaction tx2 = CMutableTransaction();
160    tx2.vin.resize(1);
161    tx2.vin[0].scriptSig = CScript() << OP_2;
162    tx2.vout.resize(1);
163    tx2.vout[0].scriptPubKey = CScript() << OP_2 << OP_EQUAL;
164    tx2.vout[0].nValue = 10 * COIN;
165    TryAddToMempool(pool, entry.Fee(500LL).FromTx(tx2));
166
167    pool.TrimToSize(pool.DynamicMemoryUsage()); // should do nothing
168    BOOST_CHECK(pool.exists(tx1.GetHash()));
169    BOOST_CHECK(pool.exists(tx2.GetHash()));
170
171    pool.TrimToSize(pool.DynamicMemoryUsage() * 3 / 4); // should remove the lower-feerate transaction
172    BOOST_CHECK(pool.exists(tx1.GetHash()));
173    BOOST_CHECK(!pool.exists(tx2.GetHash()));
174
175    TryAddToMempool(pool, entry.FromTx(tx2));
176    CMutableTransaction tx3 = CMutableTransaction();
177    tx3.vin.resize(1);
178    tx3.vin[0].prevout = COutPoint(tx2.GetHash(), 0);
179    tx3.vin[0].scriptSig = CScript() << OP_2;
180    tx3.vout.resize(1);
181    tx3.vout[0].scriptPubKey = CScript() << OP_3 << OP_EQUAL;
182    tx3.vout[0].nValue = 10 * COIN;
183    TryAddToMempool(pool, entry.Fee(2000LL).FromTx(tx3));
184
185    pool.TrimToSize(pool.DynamicMemoryUsage() * 3 / 4); // tx3 should pay for tx2 (CPFP)
186    BOOST_CHECK(!pool.exists(tx1.GetHash()));
187    BOOST_CHECK(pool.exists(tx2.GetHash()));
188    BOOST_CHECK(pool.exists(tx3.GetHash()));
189
190    pool.TrimToSize(GetVirtualTransactionSize(CTransaction(tx1))); // mempool is limited to tx1's size in memory usage, so nothing fits
191    BOOST_CHECK(!pool.exists(tx1.GetHash()));
192    BOOST_CHECK(!pool.exists(tx2.GetHash()));
193    BOOST_CHECK(!pool.exists(tx3.GetHash()));
194
195    CFeeRate maxFeeRateRemoved(2500, GetVirtualTransactionSize(CTransaction(tx3)) + GetVirtualTransactionSize(CTransaction(tx2)));
196    BOOST_CHECK_EQUAL(pool.GetMinFee(1).GetFeePerK(), maxFeeRateRemoved.GetFeePerK() + DEFAULT_INCREMENTAL_RELAY_FEE);
197
198    CMutableTransaction tx4 = CMutableTransaction();
199    tx4.vin.resize(2);
200    tx4.vin[0].prevout.SetNull();
201    tx4.vin[0].scriptSig = CScript() << OP_4;
202    tx4.vin[1].prevout.SetNull();
203    tx4.vin[1].scriptSig = CScript() << OP_4;
204    tx4.vout.resize(2);
205    tx4.vout[0].scriptPubKey = CScript() << OP_4 << OP_EQUAL;
206    tx4.vout[0].nValue = 10 * COIN;
207    tx4.vout[1].scriptPubKey = CScript() << OP_4 << OP_EQUAL;
208    tx4.vout[1].nValue = 10 * COIN;
209
210    CMutableTransaction tx5 = CMutableTransaction();
211    tx5.vin.resize(2);
212    tx5.vin[0].prevout = COutPoint(tx4.GetHash(), 0);
213    tx5.vin[0].scriptSig = CScript() << OP_4;
214    tx5.vin[1].prevout.SetNull();
215    tx5.vin[1].scriptSig = CScript() << OP_5;
216    tx5.vout.resize(2);
217    tx5.vout[0].scriptPubKey = CScript() << OP_5 << OP_EQUAL;
218    tx5.vout[0].nValue = 10 * COIN;
219    tx5.vout[1].scriptPubKey = CScript() << OP_5 << OP_EQUAL;
220    tx5.vout[1].nValue = 10 * COIN;
221
222    CMutableTransaction tx6 = CMutableTransaction();
223    tx6.vin.resize(2);
224    tx6.vin[0].prevout = COutPoint(tx4.GetHash(), 1);
225    tx6.vin[0].scriptSig = CScript() << OP_4;
226    tx6.vin[1].prevout.SetNull();
227    tx6.vin[1].scriptSig = CScript() << OP_6;
228    tx6.vout.resize(2);
229    tx6.vout[0].scriptPubKey = CScript() << OP_6 << OP_EQUAL;
230    tx6.vout[0].nValue = 10 * COIN;
231    tx6.vout[1].scriptPubKey = CScript() << OP_6 << OP_EQUAL;
232    tx6.vout[1].nValue = 10 * COIN;
233
234    CMutableTransaction tx7 = CMutableTransaction();
235    tx7.vin.resize(2);
236    tx7.vin[0].prevout = COutPoint(tx5.GetHash(), 0);
237    tx7.vin[0].scriptSig = CScript() << OP_5;
238    tx7.vin[1].prevout = COutPoint(tx6.GetHash(), 0);
239    tx7.vin[1].scriptSig = CScript() << OP_6;
240    tx7.vout.resize(2);
241    tx7.vout[0].scriptPubKey = CScript() << OP_7 << OP_EQUAL;
242    tx7.vout[0].nValue = 10 * COIN;
243    tx7.vout[1].scriptPubKey = CScript() << OP_7 << OP_EQUAL;
244    tx7.vout[1].nValue = 10 * COIN;
245
246    TryAddToMempool(pool, entry.Fee(700LL).FromTx(tx4));
247    auto usage_with_tx4_only = pool.DynamicMemoryUsage();
248    TryAddToMempool(pool, entry.Fee(100LL).FromTx(tx5));
249    TryAddToMempool(pool, entry.Fee(110LL).FromTx(tx6));
250    TryAddToMempool(pool, entry.Fee(900LL).FromTx(tx7));

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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