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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.

bitcoin / bitcoinstable

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▤ allocator_tests.cpp

▤ amount_tests.cpp

▤ argsman_tests.cpp

▤ arith_uint256_tests.cpp

▤ baseindex_tests.cpp

▤ blockchain_tests.cpp

▤ blockencodings_tests.cpp

▤ blockfilter_index_tests.cpp

▤ blockfilter_tests.cpp

▤ blockmanager_tests.cpp

▤ blockpolicyestimator_tests.cpp

▤ bloom_tests.cpp

▤ bswap_tests.cpp

▤ btcsignals_tests.cpp

▤ caches_tests.cpp

▤ chain_tests.cpp

▤ chainstate_write_tests.cpp

▤ checkqueue_tests.cpp

▤ cluster_linearize_tests.cpp

▤ CMakeLists.txt

▤ coins_tests.cpp

▤ coinscachepair_tests.cpp

▤ coinstatsindex_tests.cpp

▤ coinsviewoverlay_tests.cpp

▤ common_url_tests.cpp

▤ compress_tests.cpp

▤ crypto_tests.cpp

▤ cuckoocache_tests.cpp

▤ dbwrapper_tests.cpp

▤ denialofservice_tests.cpp

▤ descriptor_tests.cpp

▤ disconnected_transactions.cpp

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▤ fees_util_tests.cpp

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▤ miner_tests.cpp

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▤ minisketch_tests.cpp

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▤ net_peer_eviction_tests.cpp

▤ net_tests.cpp

▤ netbase_tests.cpp

▤ node_init_tests.cpp

▤ node_warnings_tests.cpp

▤ orphanage_tests.cpp

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bitcoin / src / test / coins_tests.cpp

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251                CCoinsView* tip = base;
252                if (stack.size() > 0) {
253                    tip = stack.back().get();
254                } else {
255                    removed_all_caches = true;
256                }
257                stack.push_back(std::make_unique<CCoinsViewCacheTest>(tip));
258                if (stack.size() == 4) {
259                    reached_4_caches = true;
260                }
261            }
262        }
263    }
264
265    // Verify coverage.
266    BOOST_CHECK(removed_all_caches);
267    BOOST_CHECK(reached_4_caches);
268    BOOST_CHECK(added_an_entry);
269    BOOST_CHECK(added_an_unspendable_entry);
270    BOOST_CHECK(removed_an_entry);
271    BOOST_CHECK(updated_an_entry);
272    BOOST_CHECK(found_an_entry);
273    BOOST_CHECK(missed_an_entry);
274    BOOST_CHECK(uncached_an_entry);
275    BOOST_CHECK(flushed_without_erase);
276}
277}; // struct CacheTest
278
279BOOST_FIXTURE_TEST_SUITE(coins_tests_base, BasicTestingSetup)
280
281// Run the above simulation for multiple base types.
282BOOST_FIXTURE_TEST_CASE(coins_cache_base_simulation_test, CacheTest)
283{
284    CCoinsViewTest base{m_rng};
285    SimulationTest(&base, false);
286}
287
288BOOST_AUTO_TEST_SUITE_END()
289
290BOOST_FIXTURE_TEST_SUITE(coins_tests_dbbase, BasicTestingSetup)
291
292BOOST_FIXTURE_TEST_CASE(coins_cache_dbbase_simulation_test, CacheTest)
293{
294    CCoinsViewDB db_base{{.path = "test", .cache_bytes = 8_MiB, .memory_only = true}, {}};
295    SimulationTest(&db_base, true);
296}
297
298BOOST_AUTO_TEST_SUITE_END()
299
300BOOST_FIXTURE_TEST_SUITE(coins_tests, BasicTestingSetup)
301
302struct UpdateTest : BasicTestingSetup {
303// Store of all necessary tx and undo data for next test
304typedef std::map<COutPoint, std::tuple<CTransaction,CTxUndo,Coin>> UtxoData;
305UtxoData utxoData;
306
307UtxoData::iterator FindRandomFrom(const std::set<COutPoint> &utxoSet) {
308    assert(utxoSet.size());
309    auto utxoSetIt = utxoSet.lower_bound(COutPoint(Txid::FromUint256(m_rng.rand256()), 0));
310    if (utxoSetIt == utxoSet.end()) {
311        utxoSetIt = utxoSet.begin();
312    }
313    auto utxoDataIt = utxoData.find(*utxoSetIt);
314    assert(utxoDataIt != utxoData.end());
315    return utxoDataIt;
316}
317}; // struct UpdateTest
318
319
320// This test is similar to the previous test
321// except the emphasis is on testing the functionality of UpdateCoins
322// random txs are created and UpdateCoins is used to update the cache stack
323// In particular it is tested that spending a duplicate coinbase tx
324// has the expected effect (the other duplicate is overwritten at all cache levels)
325BOOST_FIXTURE_TEST_CASE(updatecoins_simulation_test, UpdateTest)
326{
327    SeedRandomForTest(SeedRand::ZEROS);
328
329    bool spent_a_duplicate_coinbase = false;
330    // A simple map to track what we expect the cache stack to represent.
331    std::map<COutPoint, Coin> result;
332
333    // The cache stack.
334    CCoinsViewTest base{m_rng}; // A CCoinsViewTest at the bottom.
335    std::vector<std::unique_ptr<CCoinsViewCacheTest>> stack; // A stack of CCoinsViewCaches on top.
336    stack.push_back(std::make_unique<CCoinsViewCacheTest>(&base)); // Start with one cache.
337
338    // Track the txids we've used in various sets
339    std::set<COutPoint> coinbase_coins;
340    std::set<COutPoint> disconnected_coins;
341    std::set<COutPoint> duplicate_coins;
342    std::set<COutPoint> utxoset;
343
344    for (unsigned int i = 0; i < NUM_SIMULATION_ITERATIONS; i++) {
345        uint32_t randiter = m_rng.rand32();
346
347        // 19/20 txs add a new transaction
348        if (randiter % 20 < 19) {
349            CMutableTransaction tx;
350            tx.vin.resize(1);
351            tx.vout.resize(1);
352            tx.vout[0].nValue = i; //Keep txs unique unless intended to duplicate
353            tx.vout[0].scriptPubKey.assign(m_rng.rand32() & 0x3F, 0); // Random sizes so we can test memory usage accounting
354            const int height{int(m_rng.rand32() >> 1)};
355            Coin old_coin;
356
357            // 2/20 times create a new coinbase
358            if (randiter % 20 < 2 || coinbase_coins.size() < 10) {
359                // 1/10 of those times create a duplicate coinbase
360                if (m_rng.randrange(10) == 0 && coinbase_coins.size()) {
361                    auto utxod = FindRandomFrom(coinbase_coins);
362                    // Reuse the exact same coinbase
363                    tx = CMutableTransaction{std::get<0>(utxod->second)};
364                    // shouldn't be available for reconnection if it's been duplicated
365                    disconnected_coins.erase(utxod->first);
366
367                    duplicate_coins.insert(utxod->first);
368                }
369                else {
370                    coinbase_coins.insert(COutPoint(tx.GetHash(), 0));
371                }
372                assert(CTransaction(tx).IsCoinBase());
373            }
374
375            // 17/20 times reconnect previous or add a regular tx
376            else {
377
378                COutPoint prevout;
379                // 1/20 times reconnect a previously disconnected tx
380                if (randiter % 20 == 2 && disconnected_coins.size()) {
381                    auto utxod = FindRandomFrom(disconnected_coins);
382                    tx = CMutableTransaction{std::get<0>(utxod->second)};
383                    prevout = tx.vin[0].prevout;
384                    if (!CTransaction(tx).IsCoinBase() && !utxoset.contains(prevout)) {
385                        disconnected_coins.erase(utxod->first);
386                        continue;
387                    }
388
389                    // If this tx is already IN the UTXO, then it must be a coinbase, and it must be a duplicate
390                    if (utxoset.contains(utxod->first)) {
391                        assert(CTransaction(tx).IsCoinBase());
392                        assert(duplicate_coins.contains(utxod->first));
393                    }
394                    disconnected_coins.erase(utxod->first);
395                }
396
397                // 16/20 times create a regular tx
398                else {
399                    auto utxod = FindRandomFrom(utxoset);
400                    prevout = utxod->first;
401
402                    // Construct the tx to spend the coins of prevouthash
403                    tx.vin[0].prevout = prevout;
404                    assert(!CTransaction(tx).IsCoinBase());
405                }
406                // In this simple test coins only have two states, spent or unspent, save the unspent state to restore
407                old_coin = result[prevout];
408                // Update the expected result of prevouthash to know these coins are spent
409                result[prevout].Clear();
410
411                utxoset.erase(prevout);
412
413                // The test is designed to ensure spending a duplicate coinbase will work properly
414                // if that ever happens and not resurrect the previously overwritten coinbase
415                if (duplicate_coins.contains(prevout)) {
416                    spent_a_duplicate_coinbase = true;
417                }
418
419            }
420            // Update the expected result to know about the new output coins
421            assert(tx.vout.size() == 1);
422            const COutPoint outpoint(tx.GetHash(), 0);
423            result[outpoint] = Coin{tx.vout[0], height, CTransaction{tx}.IsCoinBase()};
424
425            // Call UpdateCoins on the top cache
426            CTxUndo undo;
427            UpdateCoins(CTransaction{tx}, *(stack.back()), undo, height);
428
429            // Update the utxo set for future spends
430            utxoset.insert(outpoint);
431
432            // Track this tx and undo info to use later
433            utxoData.emplace(outpoint, std::make_tuple(tx,undo,old_coin));
434        } else if (utxoset.size()) {
435            //1/20 times undo a previous transaction
436            auto utxod = FindRandomFrom(utxoset);
437
438            CTransaction &tx = std::get<0>(utxod->second);
439            CTxUndo &undo = std::get<1>(utxod->second);
440            Coin &orig_coin = std::get<2>(utxod->second);
441
442            // Update the expected result
443            // Remove new outputs
444            result[utxod->first].Clear();
445            // If not coinbase restore prevout
446            if (!tx.IsCoinBase()) {
447                result[tx.vin[0].prevout] = orig_coin;
448            }
449
450            // Disconnect the tx from the current UTXO
451            // See code in DisconnectBlock
452            // remove outputs
453            BOOST_CHECK(stack.back()->SpendCoin(utxod->first));
454            // restore inputs
455            if (!tx.IsCoinBase()) {
456                const COutPoint &out = tx.vin[0].prevout;
457                Coin coin = undo.vprevout[0];
458                ApplyTxInUndo(std::move(coin), *(stack.back()), out);
459            }
460            // Store as a candidate for reconnection
461            disconnected_coins.insert(utxod->first);
462
463            // Update the utxoset
464            utxoset.erase(utxod->first);
465            if (!tx.IsCoinBase())
466                utxoset.insert(tx.vin[0].prevout);
467        }
468
469        // Once every 1000 iterations and at the end, verify the full cache.
470        if (m_rng.randrange(1000) == 1 || i == NUM_SIMULATION_ITERATIONS - 1) {
471            for (const auto& entry : result) {
472                bool have = stack.back()->HaveCoin(entry.first);
473                const Coin& coin = stack.back()->AccessCoin(entry.first);
474                BOOST_CHECK(have == !coin.IsSpent());
475                BOOST_CHECK_EQUAL(coin, entry.second);
476            }
477        }
478
479        // One every 10 iterations, remove a random entry from the cache
480        if (utxoset.size() > 1 && m_rng.randrange(30) == 0) {
481            stack[m_rng.rand32() % stack.size()]->Uncache(FindRandomFrom(utxoset)->first);
482        }
483        if (disconnected_coins.size() > 1 && m_rng.randrange(30) == 0) {
484            stack[m_rng.rand32() % stack.size()]->Uncache(FindRandomFrom(disconnected_coins)->first);
485        }
486        if (duplicate_coins.size() > 1 && m_rng.randrange(30) == 0) {
487            stack[m_rng.rand32() % stack.size()]->Uncache(FindRandomFrom(duplicate_coins)->first);
488        }
489
490        if (m_rng.randrange(100) == 0) {
491            // Every 100 iterations, flush an intermediate cache
492            if (stack.size() > 1 && m_rng.randbool() == 0) {
493                unsigned int flushIndex = m_rng.randrange(stack.size() - 1);
494                stack[flushIndex]->Flush();
495            }
496        }
497        if (m_rng.randrange(100) == 0) {
498            // Every 100 iterations, change the cache stack.
499            if (stack.size() > 0 && m_rng.randbool() == 0) {
500                stack.back()->Flush();

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cmake/bitcoin-build-config.h.in src/consensus/amount.h src/consensus/consensus.h src/primitives/block.h src/primitives/transaction.h src/crypto/sha256.h src/util/moneystr.h src/clientversion.h src/uint256.h src/script/script.h src/policy/policy.h CMakeLists.txt README.md COPYING src/consensus/tx_check.cpp src/consensus/tx_verify.cpp src/consensus/merkle.cpp src/pow.cpp src/validation.cpp src/script/interpreter.cpp src/script/solver.cpp src/script/sign.cpp src/key_io.cpp src/net.cpp src/net_processing.cpp src/netaddress.cpp src/protocol.h src/wallet/wallet.cpp src/wallet/spend.cpp

← Previous 250 linesCode page 2Next 250 lines →

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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