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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

▤ base_encode_decode.cpp

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▤ crypto_aes256cbc.cpp

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▤ secp256k1_ec_seckey_import_export_der.cpp

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▤ signature_checker.cpp

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▤ txospenderindex_tests.cpp

▤ txpackage_tests.cpp

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▤ arith_uint256.hGuide

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▤ bitcoin-cli.cppGuide

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bitcoin / src / test / fuzz / txgraph.cpp

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501                    if (top_sim.graph.Ancestors(pos_par)[pos_chl]) break;
502                }
503                top_sim.AddDependency(par, chl);
504                top_sim.real_is_optimal = false;
505                real->AddDependency(*par, *chl);
506                break;
507            } else if ((block_builders.empty() || sims.size() > 1) && top_sim.removed.size() < 100 && command-- == 0) {
508                // RemoveTransaction. Either all its ancestors or all its descendants are also
509                // removed (if any), to make sure TxGraph's reordering of removals and dependencies
510                // has no effect.
511                std::vector<TxGraph::Ref*> to_remove;
512                to_remove.push_back(pick_fn());
513                top_sim.IncludeAncDesc(to_remove, alt);
514                // The order in which these ancestors/descendants are removed should not matter;
515                // randomly shuffle them.
516                std::shuffle(to_remove.begin(), to_remove.end(), rng);
517                for (TxGraph::Ref* ptr : to_remove) {
518                    real->RemoveTransaction(*ptr);
519                    top_sim.RemoveTransaction(ptr);
520                }
521                break;
522            } else if (sel_sim.removed.size() > 0 && command-- == 0) {
523                // ~Ref (of an already-removed transaction). Destroying a TxGraph::Ref has an
524                // observable effect on the TxGraph it refers to, so this simulation permits doing
525                // so separately from other actions on TxGraph.
526
527                // Pick a Ref of sel_sim.removed to destroy. Note that the same Ref may still occur
528                // in the other graph, and thus not actually trigger ~Ref yet (which is exactly
529                // what we want, as destroying Refs is only allowed when it does not refer to an
530                // existing transaction in either graph).
531                auto removed_pos = provider.ConsumeIntegralInRange<size_t>(0, sel_sim.removed.size() - 1);
532                if (removed_pos != sel_sim.removed.size() - 1) {
533                    std::swap(sel_sim.removed[removed_pos], sel_sim.removed.back());
534                }
535                sel_sim.removed.pop_back();
536                break;
537            } else if (block_builders.empty() && command-- == 0) {
538                // ~Ref (of any transaction).
539                std::vector<TxGraph::Ref*> to_destroy;
540                to_destroy.push_back(pick_fn());
541                while (true) {
542                    // Keep adding either the ancestors or descendants the already picked
543                    // transactions have in both graphs (main and staging) combined. Destroying
544                    // will trigger deletions in both, so to have consistent TxGraph behavior, the
545                    // set must be closed under ancestors, or descendants, in both graphs.
546                    auto old_size = to_destroy.size();
547                    for (auto& sim : sims) sim.IncludeAncDesc(to_destroy, alt);
548                    if (to_destroy.size() == old_size) break;
549                }
550                // The order in which these ancestors/descendants are destroyed should not matter;
551                // randomly shuffle them.
552                std::shuffle(to_destroy.begin(), to_destroy.end(), rng);
553                for (TxGraph::Ref* ptr : to_destroy) {
554                    for (size_t level = 0; level < sims.size(); ++level) {
555                        sims[level].DestroyTransaction(ptr, level == sims.size() - 1);
556                    }
557                }
558                break;
559            } else if (block_builders.empty() && command-- == 0) {
560                // SetTransactionFee.
561                int64_t fee;
562                if (alt) {
563                    fee = provider.ConsumeIntegralInRange<int64_t>(-0x8000000000000, 0x7ffffffffffff);
564                } else {
565                    fee = provider.ConsumeIntegral<uint8_t>();
566                }
567                auto ref = pick_fn();
568                real->SetTransactionFee(*ref, fee);
569                for (auto& sim : sims) {
570                    sim.SetTransactionFee(ref, fee);
571                }
572                break;
573            } else if (command-- == 0) {
574                // GetTransactionCount.
575                assert(real->GetTransactionCount(level_select) == sel_sim.GetTransactionCount());
576                break;
577            } else if (command-- == 0) {
578                // Exists.
579                auto ref = pick_fn();
580                bool exists = real->Exists(*ref, level_select);
581                bool should_exist = sel_sim.Find(ref) != SimTxGraph::MISSING;
582                assert(exists == should_exist);
583                break;
584            } else if (command-- == 0) {
585                // IsOversized.
586                assert(sel_sim.IsOversized() == real->IsOversized(level_select));
587                break;
588            } else if (command-- == 0) {
589                // GetIndividualFeerate.
590                auto ref = pick_fn();
591                auto feerate = real->GetIndividualFeerate(*ref);
592                bool found{false};
593                for (auto& sim : sims) {
594                    auto simpos = sim.Find(ref);
595                    if (simpos != SimTxGraph::MISSING) {
596                        found = true;
597                        assert(feerate == sim.graph.FeeRate(simpos));
598                    }
599                }
600                if (!found) assert(feerate.IsEmpty());
601                break;
602            } else if (!main_sim.IsOversized() && command-- == 0) {
603                // GetMainChunkFeerate.
604                auto ref = pick_fn();
605                auto feerate = real->GetMainChunkFeerate(*ref);
606                auto simpos = main_sim.Find(ref);
607                if (simpos == SimTxGraph::MISSING) {
608                    assert(feerate.IsEmpty());
609                } else {
610                    // Just do some quick checks that the reported value is in range. A full
611                    // recomputation of expected chunk feerates is done at the end.
612                    assert(feerate.size >= main_sim.graph.FeeRate(simpos).size);
613                    assert(feerate.size <= main_sim.SumAll().size);
614                }
615                break;
616            } else if (!sel_sim.IsOversized() && command-- == 0) {
617                // GetAncestors/GetDescendants.
618                auto ref = pick_fn();
619                auto result = alt ? real->GetDescendants(*ref, level_select)
620                                  : real->GetAncestors(*ref, level_select);
621                assert(result.size() <= max_cluster_count);
622                auto result_set = sel_sim.MakeSet(result);
623                assert(result.size() == result_set.Count());
624                auto expect_set = sel_sim.GetAncDesc(ref, alt);
625                assert(result_set == expect_set);
626                break;
627            } else if (!sel_sim.IsOversized() && command-- == 0) {
628                // GetAncestorsUnion/GetDescendantsUnion.
629                std::vector<TxGraph::Ref*> refs;
630                // Gather a list of up to 15 Ref pointers.
631                auto count = provider.ConsumeIntegralInRange<size_t>(0, 15);
632                refs.resize(count);
633                for (size_t i = 0; i < count; ++i) {
634                    refs[i] = pick_fn();
635                }
636                // Their order should not matter, shuffle them.
637                std::shuffle(refs.begin(), refs.end(), rng);
638                // Invoke the real function, and convert to SimPos set.
639                auto result = alt ? real->GetDescendantsUnion(refs, level_select)
640                                  : real->GetAncestorsUnion(refs, level_select);
641                auto result_set = sel_sim.MakeSet(result);
642                assert(result.size() == result_set.Count());
643                // Compute the expected result.
644                SimTxGraph::SetType expect_set;
645                for (TxGraph::Ref* ref : refs) expect_set |= sel_sim.GetAncDesc(ref, alt);
646                // Compare.
647                assert(result_set == expect_set);
648                break;
649            } else if (!sel_sim.IsOversized() && command-- == 0) {
650                // GetCluster.
651                auto ref = pick_fn();
652                auto result = real->GetCluster(*ref, level_select);
653                // Check cluster count limit.
654                assert(result.size() <= max_cluster_count);
655                // Require the result to be topologically valid and not contain duplicates.
656                auto left = sel_sim.graph.Positions();
657                uint64_t total_size{0};
658                for (auto refptr : result) {
659                    auto simpos = sel_sim.Find(refptr);
660                    total_size += sel_sim.graph.FeeRate(simpos).size;
661                    assert(simpos != SimTxGraph::MISSING);
662                    assert(left[simpos]);
663                    left.Reset(simpos);
664                    assert(!sel_sim.graph.Ancestors(simpos).Overlaps(left));
665                }
666                // Check cluster size limit.
667                assert(total_size <= max_cluster_size);
668                // Require the set to be connected.
669                auto result_set = sel_sim.MakeSet(result);
670                assert(sel_sim.graph.IsConnected(result_set));
671                // If ref exists, the result must contain it. If not, it must be empty.
672                auto simpos = sel_sim.Find(ref);
673                if (simpos != SimTxGraph::MISSING) {
674                    assert(result_set[simpos]);
675                } else {
676                    assert(result_set.None());
677                }
678                // Require the set not to have ancestors or descendants outside of it.
679                for (auto i : result_set) {
680                    assert(sel_sim.graph.Ancestors(i).IsSubsetOf(result_set));
681                    assert(sel_sim.graph.Descendants(i).IsSubsetOf(result_set));
682                }
683                break;
684            } else if (command-- == 0) {
685                // HaveStaging.
686                assert((sims.size() == 2) == real->HaveStaging());
687                break;
688            } else if (sims.size() < 2 && command-- == 0) {
689                // StartStaging.
690                sims.emplace_back(sims.back());
691                sims.back().modified = SimTxGraph::SetType{};
692                real->StartStaging();
693                break;
694            } else if (block_builders.empty() && sims.size() > 1 && command-- == 0) {
695                // CommitStaging.
696                real->CommitStaging();
697                // Resulting main level is only guaranteed to be optimal if all levels are
698                const bool main_optimal = std::all_of(sims.cbegin(), sims.cend(), [](const auto &sim) { return sim.real_is_optimal; });
699                sims.erase(sims.begin());
700                sims.front().real_is_optimal = main_optimal;
701                break;
702            } else if (sims.size() > 1 && command-- == 0) {
703                // AbortStaging.
704                real->AbortStaging();
705                sims.pop_back();
706                // Reset the cached oversized value (if TxGraph::Ref destructions triggered
707                // removals of main transactions while staging was active, then aborting will
708                // cause it to be re-evaluated in TxGraph).
709                sims.back().oversized = std::nullopt;
710                break;
711            } else if (!main_sim.IsOversized() && command-- == 0) {
712                // CompareMainOrder.
713                auto ref_a = pick_fn();
714                auto ref_b = pick_fn();
715                auto sim_a = main_sim.Find(ref_a);
716                auto sim_b = main_sim.Find(ref_b);
717                // Both transactions must exist in the main graph.
718                if (sim_a == SimTxGraph::MISSING || sim_b == SimTxGraph::MISSING) break;
719                auto cmp = real->CompareMainOrder(*ref_a, *ref_b);
720                // Distinct transactions have distinct places.
721                if (sim_a != sim_b) assert(cmp != 0);
722                // Ancestors go before descendants.
723                if (main_sim.graph.Ancestors(sim_a)[sim_b]) assert(cmp >= 0);
724                if (main_sim.graph.Descendants(sim_a)[sim_b]) assert(cmp <= 0);
725                // Do not verify consistency with chunk feerates, as we cannot easily determine
726                // these here without making more calls to real, which could affect its internal
727                // state. A full comparison is done at the end.
728                break;
729            } else if (!sel_sim.IsOversized() && command-- == 0) {
730                // CountDistinctClusters.
731                std::vector<TxGraph::Ref*> refs;
732                // Gather a list of up to 15 (or up to 255) Ref pointers.
733                auto count = provider.ConsumeIntegralInRange<size_t>(0, alt ? 255 : 15);
734                refs.resize(count);
735                for (size_t i = 0; i < count; ++i) {
736                    refs[i] = pick_fn();
737                }
738                // Their order should not matter, shuffle them.
739                std::shuffle(refs.begin(), refs.end(), rng);
740                // Invoke the real function.
741                auto result = real->CountDistinctClusters(refs, level_select);
742                // Build a set with representatives of the clusters the Refs occur in the
743                // simulated graph. For each, remember the lowest-index transaction SimPos in the
744                // cluster.
745                SimTxGraph::SetType sim_reps;
746                for (auto ref : refs) {
747                    // Skip Refs that do not occur in the simulated graph.
748                    auto simpos = sel_sim.Find(ref);
749                    if (simpos == SimTxGraph::MISSING) continue;
750                    // Find the component that includes ref.

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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 3Next 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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