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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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bitcoin / bitcoinstable

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▤ addition_overflow.cpp

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bitcoin / src / test / fuzz / cluster_linearize.cpp

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501                for (DepGraphIndex i = 0; i < TestBitSet::Size(); ++i) {
502                    if (!sim[i].has_value()) {
503                        assert(idx == i);
504                        break;
505                    }
506                }
507                // Update sim.
508                sim[idx] = {feerate, TestBitSet::Singleton(idx)};
509                ++num_tx_sim;
510                break;
511            } else if (num_tx_sim > 0 && command-- == 0) {
512                // AddDependencies.
513                DepGraphIndex child = idx_fn();
514                auto parents = subset_fn();
515                // Apply to DepGraph.
516                real.AddDependencies(parents, child);
517                // Apply to sim.
518                sim[child]->second |= parents;
519                break;
520            } else if (num_tx_sim > 0 && command-- == 0) {
521                // Remove transactions.
522                auto del = set_fn();
523                // Propagate all ancestry information before deleting anything in the simulation (as
524                // intermediary transactions may be deleted which impact connectivity).
525                anc_update_fn();
526                // Compare the state of the transactions being deleted.
527                for (auto i : del) check_fn(i);
528                // Apply to DepGraph.
529                real.RemoveTransactions(del);
530                // Apply to sim.
531                for (DepGraphIndex i = 0; i < sim.size(); ++i) {
532                    if (sim[i].has_value()) {
533                        if (del[i]) {
534                            --num_tx_sim;
535                            sim[i] = std::nullopt;
536                        } else {
537                            sim[i]->second -= del;
538                        }
539                    }
540                }
541                break;
542            } else if (command-- == 0) {
543                // Compact.
544                const size_t mem_before{real.DynamicMemoryUsage()};
545                real.Compact();
546                const size_t mem_after{real.DynamicMemoryUsage()};
547                assert(real.PositionRange() < last_compaction_pos ? mem_after < mem_before : mem_after <= mem_before);
548                last_compaction_pos = real.PositionRange();
549                break;
550            }
551        }
552    }
553
554    // Compare the real obtained depgraph against the simulation.
555    anc_update_fn();
556    for (DepGraphIndex i = 0; i < sim.size(); ++i) check_fn(i);
557    assert(real.TxCount() == num_tx_sim);
558    // Sanity check the result (which includes round-tripping serialization, if applicable).
559    SanityCheck(real);
560}
561
562FUZZ_TARGET(clusterlin_depgraph_serialization)
563{
564    // Verify that any deserialized depgraph is acyclic and roundtrips to an identical depgraph.
565
566    // Construct a graph by deserializing.
567    SpanReader reader(buffer);
568    DepGraph<TestBitSet> depgraph;
569    DepGraphIndex par_code{0}, chl_code{0};
570    try {
571        reader >> Using<DepGraphFormatter>(depgraph) >> VARINT(par_code) >> VARINT(chl_code);
572    } catch (const std::ios_base::failure&) {}
573    SanityCheck(depgraph);
574
575    // Verify the graph is a DAG.
576    assert(depgraph.IsAcyclic());
577
578    // Introduce a cycle, and then test that IsAcyclic returns false.
579    if (depgraph.TxCount() < 2) return;
580    DepGraphIndex par(0), chl(0);
581    // Pick any transaction of depgraph as parent.
582    par_code %= depgraph.TxCount();
583    for (auto i : depgraph.Positions()) {
584        if (par_code == 0) {
585            par = i;
586            break;
587        }
588        --par_code;
589    }
590    // Pick any ancestor of par (excluding itself) as child, if any.
591    auto ancestors = depgraph.Ancestors(par) - TestBitSet::Singleton(par);
592    if (ancestors.None()) return;
593    chl_code %= ancestors.Count();
594    for (auto i : ancestors) {
595        if (chl_code == 0) {
596            chl = i;
597            break;
598        }
599        --chl_code;
600    }
601    // Add the cycle-introducing dependency.
602    depgraph.AddDependencies(TestBitSet::Singleton(par), chl);
603    // Check that we now detect a cycle.
604    assert(!depgraph.IsAcyclic());
605}
606
607FUZZ_TARGET(clusterlin_components)
608{
609    // Verify the behavior of DepGraphs's FindConnectedComponent and IsConnected functions.
610
611    // Construct a depgraph.
612    SpanReader reader(buffer);
613    DepGraph<TestBitSet> depgraph;
614    try {
615        reader >> Using<DepGraphFormatter>(depgraph);
616    } catch (const std::ios_base::failure&) {}
617
618    TestBitSet todo = depgraph.Positions();
619    while (todo.Any()) {
620        // Pick a transaction in todo, or nothing.
621        std::optional<DepGraphIndex> picked;
622        {
623            uint64_t picked_num{0};
624            try {
625                reader >> VARINT(picked_num);
626            } catch (const std::ios_base::failure&) {}
627            if (picked_num < todo.Size() && todo[picked_num]) {
628                picked = picked_num;
629            }
630        }
631
632        // Find a connected component inside todo, including picked if any.
633        auto component = picked ? depgraph.GetConnectedComponent(todo, *picked)
634                                : depgraph.FindConnectedComponent(todo);
635
636        // The component must be a subset of todo and non-empty.
637        assert(component.IsSubsetOf(todo));
638        assert(component.Any());
639
640        // If picked was provided, the component must include it.
641        if (picked) assert(component[*picked]);
642
643        // If todo is the entire graph, and the entire graph is connected, then the component must
644        // be the entire graph.
645        if (todo == depgraph.Positions()) {
646            assert((component == todo) == depgraph.IsConnected());
647        }
648
649        // If subset is connected, then component must match subset.
650        assert((component == todo) == depgraph.IsConnected(todo));
651
652        // The component cannot have any ancestors or descendants outside of component but in todo.
653        for (auto i : component) {
654            assert((depgraph.Ancestors(i) & todo).IsSubsetOf(component));
655            assert((depgraph.Descendants(i) & todo).IsSubsetOf(component));
656        }
657
658        // Starting from any component element, we must be able to reach every element.
659        for (auto i : component) {
660            // Start with just i as reachable.
661            TestBitSet reachable = TestBitSet::Singleton(i);
662            // Add in-todo descendants and ancestors to reachable until it does not change anymore.
663            while (true) {
664                TestBitSet new_reachable = reachable;
665                for (auto j : new_reachable) {
666                    new_reachable |= depgraph.Ancestors(j) & todo;
667                    new_reachable |= depgraph.Descendants(j) & todo;
668                }
669                if (new_reachable == reachable) break;
670                reachable = new_reachable;
671            }
672            // Verify that the result is the entire component.
673            assert(component == reachable);
674        }
675
676        // Construct an arbitrary subset of todo.
677        uint64_t subset_bits{0};
678        try {
679            reader >> VARINT(subset_bits);
680        } catch (const std::ios_base::failure&) {}
681        TestBitSet subset;
682        for (DepGraphIndex i : depgraph.Positions()) {
683            if (todo[i]) {
684                if (subset_bits & 1) subset.Set(i);
685                subset_bits >>= 1;
686            }
687        }
688        // Which must be non-empty.
689        if (subset.None()) subset = TestBitSet::Singleton(todo.First());
690        // Remove it from todo.
691        todo -= subset;
692    }
693
694    // No components can be found in an empty subset.
695    assert(depgraph.FindConnectedComponent(todo).None());
696}
697
698FUZZ_TARGET(clusterlin_make_connected)
699{
700    // Verify that MakeConnected makes graphs connected.
701
702    SpanReader reader(buffer);
703    DepGraph<TestBitSet> depgraph;
704    try {
705        reader >> Using<DepGraphFormatter>(depgraph);
706    } catch (const std::ios_base::failure&) {}
707    MakeConnected(depgraph);
708    SanityCheck(depgraph);
709    assert(depgraph.IsConnected());
710}
711
712FUZZ_TARGET(clusterlin_chunking)
713{
714    // Verify the correctness of the ChunkLinearization function.
715
716    // Construct a graph by deserializing.
717    SpanReader reader(buffer);
718    DepGraph<TestBitSet> depgraph;
719    try {
720        reader >> Using<DepGraphFormatter>(depgraph);
721    } catch (const std::ios_base::failure&) {}
722
723    // Read a valid linearization for depgraph.
724    auto linearization = ReadLinearization(depgraph, reader);
725
726    // Invoke the chunking functions.
727    auto chunking = ChunkLinearization(depgraph, linearization);
728    auto chunking_info = ChunkLinearizationInfo(depgraph, linearization);
729
730    // Verify consistency between the two functions.
731    assert(chunking.size() == chunking_info.size());
732    for (size_t i = 0; i < chunking.size(); ++i) {
733        assert(chunking[i] == chunking_info[i].feerate);
734        assert(SetInfo(depgraph, chunking_info[i].transactions) == chunking_info[i]);
735    }
736
737    // Verify that chunk feerates are monotonically non-increasing.
738    for (size_t i = 1; i < chunking.size(); ++i) {
739        assert(ByRatio{chunking[i]} <= ByRatio{chunking[i - 1]});
740    }
741
742    // Naively recompute the chunks (each is the highest-feerate prefix of what remains).
743    auto todo = depgraph.Positions();
744    for (const auto& [chunk_set, chunk_feerate] : chunking_info) {
745        assert(todo.Any());
746        SetInfo<TestBitSet> accumulator, best;
747        for (DepGraphIndex idx : linearization) {
748            if (todo[idx]) {
749                accumulator.Set(depgraph, idx);
750                if (best.feerate.IsEmpty() || ByRatio{accumulator.feerate} > ByRatio{best.feerate}) {

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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 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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