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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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▤ addition_overflow.cpp

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bitcoin / src / test / fuzz / coins_view.cpp

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251                        }
252                        coins_cache_entry.coin = *opt_coin;
253                    }
254                    // Avoid setting FRESH for an outpoint that already exists unspent in the parent view.
255                    bool fresh{!coins_view_cache.PeekCoin(random_out_point) && fuzzed_data_provider.ConsumeBool()};
256                    bool dirty{fresh || fuzzed_data_provider.ConsumeBool()};
257                    auto it{coins_map.emplace(random_out_point, std::move(coins_cache_entry)).first};
258                    if (dirty) CCoinsCacheEntry::SetDirty(*it, sentinel);
259                    if (fresh) CCoinsCacheEntry::SetFresh(*it, sentinel);
260                    dirty_count += dirty;
261                }
262                auto cursor{CoinsViewCacheCursor(dirty_count, sentinel, coins_map, /*will_erase=*/true)};
263                uint256 best_block{coins_view_cache.GetBestBlock()};
264                if (fuzzed_data_provider.ConsumeBool()) best_block = ConsumeUInt256(fuzzed_data_provider);
265                // Set best block hash to non-null to satisfy the assertion in CCoinsViewDB::BatchWrite().
266                if (is_db && best_block.IsNull()) best_block = uint256::ONE;
267                coins_view_cache.BatchWrite(cursor, best_block);
268            });
269    }
270
271    {
272        (void)coins_view_cache.DynamicMemoryUsage();
273        (void)coins_view_cache.EstimateSize();
274        (void)coins_view_cache.GetBestBlock();
275        (void)coins_view_cache.GetCacheSize();
276        (void)coins_view_cache.GetHeadBlocks();
277        (void)coins_view_cache.HaveInputs(CTransaction{random_mutable_transaction});
278    }
279
280    {
281        if (is_db && backend_coins_view == original_backend) {
282            assert(db->Cursor());
283        }
284        (void)backend_coins_view->EstimateSize();
285        (void)backend_coins_view->GetBestBlock();
286        (void)backend_coins_view->GetHeadBlocks();
287    }
288
289    if (fuzzed_data_provider.ConsumeBool()) {
290        CallOneOf(
291            fuzzed_data_provider,
292            [&] {
293                const CTransaction transaction{random_mutable_transaction};
294                bool is_spent = false;
295                for (const CTxOut& tx_out : transaction.vout) {
296                    if (Coin{tx_out, 0, transaction.IsCoinBase()}.IsSpent()) {
297                        is_spent = true;
298                    }
299                }
300                if (is_spent) {
301                    // Avoid:
302                    // coins.cpp:69: void CCoinsViewCache::AddCoin(const COutPoint &, Coin &&, bool): Assertion `!coin.IsSpent()' failed.
303                    return;
304                }
305                const int height{int(fuzzed_data_provider.ConsumeIntegral<uint32_t>() >> 1)};
306                const bool check_for_overwrite{transaction.IsCoinBase() || [&] {
307                    for (uint32_t i{0}; i < transaction.vout.size(); ++i) {
308                        if (coins_view_cache.PeekCoin(COutPoint{transaction.GetHash(), i})) return true;
309                    }
310                    return fuzzed_data_provider.ConsumeBool();
311                }()}; // We can only skip the check if the current txid has no unspent outputs
312                AddCoins(coins_view_cache, transaction, height, check_for_overwrite);
313            },
314            [&] {
315                (void)ValidateInputsStandardness(CTransaction{random_mutable_transaction}, coins_view_cache);
316            },
317            [&] {
318                TxValidationState state;
319                CAmount tx_fee_out;
320                const CTransaction transaction{random_mutable_transaction};
321                if (ContainsSpentInput(transaction, coins_view_cache)) {
322                    // Avoid:
323                    // consensus/tx_verify.cpp:171: bool Consensus::CheckTxInputs(const CTransaction &, TxValidationState &, const CCoinsViewCache &, int, CAmount &): Assertion `!coin.IsSpent()' failed.
324                    return;
325                }
326                TxValidationState dummy;
327                if (!CheckTransaction(transaction, dummy)) {
328                    // It is not allowed to call CheckTxInputs if CheckTransaction failed
329                    return;
330                }
331                if (Consensus::CheckTxInputs(transaction, state, coins_view_cache, fuzzed_data_provider.ConsumeIntegralInRange<int>(0, std::numeric_limits<int>::max()), tx_fee_out)) {
332                    assert(MoneyRange(tx_fee_out));
333                }
334            },
335            [&] {
336                const CTransaction transaction{random_mutable_transaction};
337                if (ContainsSpentInput(transaction, coins_view_cache)) {
338                    // Avoid:
339                    // consensus/tx_verify.cpp:130: unsigned int GetP2SHSigOpCount(const CTransaction &, const CCoinsViewCache &): Assertion `!coin.IsSpent()' failed.
340                    return;
341                }
342                (void)GetP2SHSigOpCount(transaction, coins_view_cache);
343            },
344            [&] {
345                const CTransaction transaction{random_mutable_transaction};
346                if (ContainsSpentInput(transaction, coins_view_cache)) {
347                    // Avoid:
348                    // consensus/tx_verify.cpp:130: unsigned int GetP2SHSigOpCount(const CTransaction &, const CCoinsViewCache &): Assertion `!coin.IsSpent()' failed.
349                    return;
350                }
351                const auto flags = script_verify_flags::from_int(fuzzed_data_provider.ConsumeIntegral<script_verify_flags::value_type>());
352                if (!transaction.vin.empty() && (flags & SCRIPT_VERIFY_WITNESS) != 0 && (flags & SCRIPT_VERIFY_P2SH) == 0) {
353                    // Avoid:
354                    // script/interpreter.cpp:1705: size_t CountWitnessSigOps(const CScript &, const CScript &, const CScriptWitness &, unsigned int): Assertion `(flags & SCRIPT_VERIFY_P2SH) != 0' failed.
355                    return;
356                }
357                (void)GetTransactionSigOpCost(transaction, coins_view_cache, flags);
358            },
359            [&] {
360                (void)IsWitnessStandard(CTransaction{random_mutable_transaction}, coins_view_cache);
361            });
362    }
363
364    {
365        const Coin& coin_using_access_coin = coins_view_cache.AccessCoin(random_out_point);
366        const bool exists_using_access_coin = !coin_using_access_coin.IsSpent();
367        const bool exists_using_have_coin = coins_view_cache.HaveCoin(random_out_point);
368        const bool exists_using_have_coin_in_cache = coins_view_cache.HaveCoinInCache(random_out_point);
369        if (auto coin{coins_view_cache.GetCoin(random_out_point)}) {
370            assert(*coin == coin_using_access_coin);
371            assert(exists_using_access_coin && exists_using_have_coin_in_cache && exists_using_have_coin);
372        } else {
373            assert(!exists_using_access_coin && !exists_using_have_coin_in_cache && !exists_using_have_coin);
374        }
375        // If HaveCoin on the backend is true, it must also be on the cache if the coin wasn't spent.
376        std::optional<Coin> coin_in_backend;
377        bool exists_using_have_coin_in_backend;
378        if (overlay) {
379            // PeekCoin does not mutate cacheCoins, so async workers can keep running.
380            coin_in_backend = backend_coins_view->PeekCoin(random_out_point);
381            exists_using_have_coin_in_backend = coin_in_backend.has_value();
382        } else {
383            exists_using_have_coin_in_backend = backend_coins_view->HaveCoin(random_out_point);
384            coin_in_backend = backend_coins_view->GetCoin(random_out_point);
385        }
386        if (!coin_using_access_coin.IsSpent() && exists_using_have_coin_in_backend) {
387            assert(exists_using_have_coin);
388        }
389        if (coin_in_backend) {
390            assert(exists_using_have_coin_in_backend);
391            // Note we can't assert that `coin_using_get_coin == *coin` because the coin in
392            // the cache may have been modified but not yet flushed.
393        } else {
394            assert(!exists_using_have_coin_in_backend);
395        }
396    }
397}
398
399FUZZ_TARGET(coins_view, .init = initialize_coins_view)
400{
401    FuzzedDataProvider fuzzed_data_provider{buffer.data(), buffer.size()};
402    CCoinsViewCache coins_view_cache{&CoinsViewEmpty::Get(), /*deterministic=*/true};
403    TestCoinsView(fuzzed_data_provider, coins_view_cache, &CoinsViewEmpty::Get());
404}
405
406FUZZ_TARGET(coins_view_db, .init = initialize_coins_view)
407{
408    FuzzedDataProvider fuzzed_data_provider{buffer.data(), buffer.size()};
409    auto db_params = DBParams{
410        .path = "",
411        .cache_bytes = 1_MiB,
412        .memory_only = true,
413    };
414    CCoinsViewDB backend_coins_view{std::move(db_params), CoinsViewOptions{}};
415    CCoinsViewCache coins_view_cache{&backend_coins_view, /*deterministic=*/true};
416    TestCoinsView(fuzzed_data_provider, coins_view_cache, &backend_coins_view);
417}
418
419// Creates a CoinsViewOverlay and a MutationGuardCoinsViewCache as the base.
420// This allows us to exercise all methods on a CoinsViewOverlay, while also
421// ensuring that nothing can mutate the underlying cache until Flush or Sync is
422// called.
423FUZZ_TARGET(coins_view_overlay, .init = initialize_coins_view)
424{
425    SeedRandomStateForTest(SeedRand::ZEROS); // for SaltedCoinsCacheHasher
426    StartPoolIfNeeded();
427    FuzzedDataProvider fuzzed_data_provider{buffer.data(), buffer.size()};
428    MutationGuardCoinsViewCache backend_cache{&CoinsViewEmpty::Get(), /*deterministic=*/true};
429    CoinsViewOverlay coins_view_cache{&backend_cache, g_thread_pool, /*deterministic=*/true};
430    CBlock block{BuildRandomBlock(fuzzed_data_provider, backend_cache)};
431    const auto reset_guard{coins_view_cache.StartFetching(block)};
432    TestCoinsView(fuzzed_data_provider, coins_view_cache, &backend_cache);
433}
434
435FUZZ_TARGET(coins_view_stacked, .init = initialize_coins_view)
436{
437    SeedRandomStateForTest(SeedRand::ZEROS); // for SaltedCoinsCacheHasher
438    StartPoolIfNeeded();
439    FuzzedDataProvider fuzzed_data_provider{buffer.data(), buffer.size()};
440    auto db_params = DBParams{
441        .path = "",
442        .cache_bytes = 1_MiB,
443        .memory_only = true,
444    };
445    CCoinsViewDB backend_base_coins_view{std::move(db_params), CoinsViewOptions{}};
446    CCoinsViewCache backend_cache{&backend_base_coins_view, /*deterministic=*/true};
447    TestCoinsView(fuzzed_data_provider, backend_cache, &backend_base_coins_view);
448    CoinsViewOverlay coins_view_cache{&backend_cache, g_thread_pool, /*deterministic=*/true};
449    CBlock block{BuildRandomBlock(fuzzed_data_provider, backend_base_coins_view)};
450    {
451        const auto reset_guard{coins_view_cache.StartFetching(block)};
452        TestCoinsView(fuzzed_data_provider, coins_view_cache, &backend_cache);
453    }
454    TestCoinsView(fuzzed_data_provider, backend_cache, &backend_base_coins_view);
455}
456

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440 guided files · 2,580 pending. Guides cover key sections, not every line.

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 2

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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