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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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▤ checkblockindex.cpp

▤ checkqueue.cpp

▤ cluster_linearize.cpp

▤ disconnected_transactions.cpp

▤ duplicate_inputs.cpp

▤ index_blockfilter.cpp

▤ load_external.cpp

▤ lockedpool.cpp

▤ logging.cpp

▤ mempool_ephemeral_spends.cpp

▤ mempool_eviction.cpp

▤ sign_transaction.cpp

▤ streams_findbyte.cpp

▤ wallet_create_tx.cpp

▤ wallet_migration.cpp

▤ arith_uint256.hGuide

▤ bitcoin-chainstate.cpp

▤ bitcoin-cli-res.rc

▤ bitcoin-cli.cppGuide

▤ bitcoin-res.rc

▤ bitcoin-tx-res.rc

▤ bitcoin-tx.cpp

▤ bitcoin-util-res.rc

▤ bitcoin-util.cpp

▤ bitcoin-wallet-res.rc

▤ blockencodings.cppGuide

▤ blockencodings.hGuide

▤ blockfilter.cppGuide

▤ blockfilter.hGuide

▤ chain.cppGuide

▤ chain.h

▤ chainparams.cppGuide

▤ chainparams.hGuide

▤ chainparamsbase.cppGuide

▤ chainparamsbase.hGuide

▤ chainparamsseeds.h

▤ checkqueue.hGuide

▤ clientversion.cppGuide

▤ clientversion.hGuide

▤ cluster_linearize.h

▤ CMakeLists.txt

▤ coins.cppGuide

▤ coins.hGuide

▤ compressor.cppGuide

▤ compressor.hGuide

▤ core_io.cpp

▤ core_io.hGuide

▤ core_memusage.hGuide

▤ cuckoocache.h

▤ dbwrapper.cpp

▤ dbwrapper.hGuide

▤ deploymentinfo.cppGuide

▤ deploymentinfo.hGuide

▤ deploymentstatus.cppGuide

▤ deploymentstatus.hGuide

▤ dummywallet.cppGuide

▤ external_signer.cpp

▤ external_signer.hGuide

▤ merkleblock.cppGuide

▤ merkleblock.hGuide

▤ musig.cpp

▤ musig.hGuide

▤ net_permissions.cppGuide

▤ net_permissions.hGuide

▤ net_processing.cppGuide

▤ netaddress.cppGuide

▤ netmessagemaker.hGuide

▤ noui.cppGuide

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▤ outputtype.cppGuide

▤ private_broadcast.cpp

▤ private_broadcast.h

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▤ validation.h

▤ validationinterface.cpp

▤ validationinterface.h

▤ versionbits_impl.hGuide

▤ versionbits.cpp

▤ versionbits.hGuide

▤ walletinitinterface.hGuide

▤ CMakeLists.txtGuide

▤ libbitcoinkernel.pc.in

bitcoin / src / bench / nanobench.h

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130,367 bytes · SHA-256 324a40ee27419492… · View upstream ↗

2751
2752    // NOLINTNEXTLINE(cppcoreguidelines-pro-type-vararg)
2753    auto fd = static_cast<int>(syscall(__NR_perf_event_open, &pea, pid, cpu, mFd, flags));
2754    if (-1 == fd) {
2755        return false;
2756    }
2757    if (-1 == mFd) {
2758        // first call: set to fd, and use this from now on
2759        mFd = fd;
2760    }
2761    uint64_t id = 0;
2762    // NOLINTNEXTLINE(hicpp-signed-bitwise,cppcoreguidelines-pro-type-vararg)
2763    if (-1 == ioctl(fd, PERF_EVENT_IOC_ID, &id)) {
2764        // couldn't get id
2765        return false;
2766    }
2767
2768    // insert into map, rely on the fact that map's references are constant.
2769    mIdToTarget.emplace(id, target);
2770
2771    // prepare readformat with the correct size (after the insert)
2772    auto size = 3 + 2 * mIdToTarget.size();
2773    mCounters.resize(size);
2774    mCalibratedOverhead.resize(size);
2775    mLoopOverhead.resize(size);
2776
2777    return true;
2778}
2779
2780PerformanceCounters::PerformanceCounters()
2781    : mPc(new LinuxPerformanceCounters())
2782    , mVal()
2783    , mHas() {
2784
2785    // HW events
2786    mHas.cpuCycles = mPc->monitor(PERF_COUNT_HW_REF_CPU_CYCLES, LinuxPerformanceCounters::Target(&mVal.cpuCycles, true, false));
2787    if (!mHas.cpuCycles) {
2788        // Fallback to cycles counter, reference cycles not available in many systems.
2789        mHas.cpuCycles = mPc->monitor(PERF_COUNT_HW_CPU_CYCLES, LinuxPerformanceCounters::Target(&mVal.cpuCycles, true, false));
2790    }
2791    mHas.instructions = mPc->monitor(PERF_COUNT_HW_INSTRUCTIONS, LinuxPerformanceCounters::Target(&mVal.instructions, true, true));
2792    mHas.branchInstructions =
2793        mPc->monitor(PERF_COUNT_HW_BRANCH_INSTRUCTIONS, LinuxPerformanceCounters::Target(&mVal.branchInstructions, true, false));
2794    mHas.branchMisses = mPc->monitor(PERF_COUNT_HW_BRANCH_MISSES, LinuxPerformanceCounters::Target(&mVal.branchMisses, true, false));
2795    // mHas.branchMisses = false;
2796
2797    // SW events
2798    mHas.pageFaults = mPc->monitor(PERF_COUNT_SW_PAGE_FAULTS, LinuxPerformanceCounters::Target(&mVal.pageFaults, true, false));
2799    mHas.contextSwitches =
2800        mPc->monitor(PERF_COUNT_SW_CONTEXT_SWITCHES, LinuxPerformanceCounters::Target(&mVal.contextSwitches, true, false));
2801
2802    mPc->start();
2803    mPc->calibrate([] {
2804        auto before = ankerl::nanobench::Clock::now();
2805        auto after = ankerl::nanobench::Clock::now();
2806        (void)before;
2807        (void)after;
2808    });
2809
2810    if (mPc->hasError()) {
2811        // something failed, don't monitor anything.
2812        mHas = PerfCountSet<bool>{};
2813    }
2814}
2815
2816PerformanceCounters::~PerformanceCounters() {
2817    // no need to check for nullptr, delete nullptr has no effect
2818    delete mPc;
2819}
2820
2821void PerformanceCounters::beginMeasure() {
2822    mPc->beginMeasure();
2823}
2824
2825void PerformanceCounters::endMeasure() {
2826    mPc->endMeasure();
2827}
2828
2829void PerformanceCounters::updateResults(uint64_t numIters) {
2830    mPc->updateResults(numIters);
2831}
2832
2833#    else
2834
2835PerformanceCounters::PerformanceCounters() = default;
2836PerformanceCounters::~PerformanceCounters() = default;
2837void PerformanceCounters::beginMeasure() {}
2838void PerformanceCounters::endMeasure() {}
2839void PerformanceCounters::updateResults(uint64_t) {}
2840
2841#    endif
2842
2843ANKERL_NANOBENCH(NODISCARD) PerfCountSet<uint64_t> const& PerformanceCounters::val() const noexcept {
2844    return mVal;
2845}
2846ANKERL_NANOBENCH(NODISCARD) PerfCountSet<bool> const& PerformanceCounters::has() const noexcept {
2847    return mHas;
2848}
2849
2850// formatting utilities
2851namespace fmt {
2852
2853// adds thousands separator to numbers
2854NumSep::NumSep(char sep)
2855    : mSep(sep) {}
2856
2857char NumSep::do_thousands_sep() const {
2858    return mSep;
2859}
2860
2861std::string NumSep::do_grouping() const {
2862    return "\003";
2863}
2864
2865// RAII to save & restore a stream's state
2866StreamStateRestorer::StreamStateRestorer(std::ostream& s)
2867    : mStream(s)
2868    , mLocale(s.getloc())
2869    , mPrecision(s.precision())
2870    , mWidth(s.width())
2871    , mFill(s.fill())
2872    , mFmtFlags(s.flags()) {}
2873
2874StreamStateRestorer::~StreamStateRestorer() {
2875    restore();
2876}
2877
2878// sets back all stream info that we remembered at construction
2879void StreamStateRestorer::restore() {
2880    mStream.imbue(mLocale);
2881    mStream.precision(mPrecision);
2882    mStream.width(mWidth);
2883    mStream.fill(mFill);
2884    mStream.flags(mFmtFlags);
2885}
2886
2887Number::Number(int width, int precision, int64_t value)
2888    : mWidth(width)
2889    , mPrecision(precision)
2890    , mValue(d(value)) {}
2891
2892Number::Number(int width, int precision, double value)
2893    : mWidth(width)
2894    , mPrecision(precision)
2895    , mValue(value) {}
2896
2897std::ostream& Number::write(std::ostream& os) const {
2898    StreamStateRestorer const restorer(os);
2899    os.imbue(std::locale(os.getloc(), new NumSep(',')));
2900    os << std::setw(mWidth) << std::setprecision(mPrecision) << std::fixed << mValue;
2901    return os;
2902}
2903
2904std::string Number::to_s() const {
2905    std::stringstream ss;
2906    write(ss);
2907    return ss.str();
2908}
2909
2910std::string to_s(uint64_t n) {
2911    std::string str;
2912    do {
2913        str += static_cast<char>('0' + static_cast<char>(n % 10));
2914        n /= 10;
2915    } while (n != 0);
2916    std::reverse(str.begin(), str.end());
2917    return str;
2918}
2919
2920std::ostream& operator<<(std::ostream& os, Number const& n) {
2921    return n.write(os);
2922}
2923
2924MarkDownColumn::MarkDownColumn(int w, int prec, std::string tit, std::string suff, double val) noexcept
2925    : mWidth(w)
2926    , mPrecision(prec)
2927    , mTitle(std::move(tit))
2928    , mSuffix(std::move(suff))
2929    , mValue(val) {}
2930
2931std::string MarkDownColumn::title() const {
2932    std::stringstream ss;
2933    ss << '|' << std::setw(mWidth - 2) << std::right << mTitle << ' ';
2934    return ss.str();
2935}
2936
2937std::string MarkDownColumn::separator() const {
2938    std::string sep(static_cast<size_t>(mWidth), '-');
2939    sep.front() = '|';
2940    sep.back() = ':';
2941    return sep;
2942}
2943
2944std::string MarkDownColumn::invalid() const {
2945    std::string sep(static_cast<size_t>(mWidth), ' ');
2946    sep.front() = '|';
2947    sep[sep.size() - 2] = '-';
2948    return sep;
2949}
2950
2951std::string MarkDownColumn::value() const {
2952    std::stringstream ss;
2953    auto width = mWidth - 2 - static_cast<int>(mSuffix.size());
2954    ss << '|' << Number(width, mPrecision, mValue) << mSuffix << ' ';
2955    return ss.str();
2956}
2957
2958// Formats any text as markdown code, escaping backticks.
2959MarkDownCode::MarkDownCode(std::string const& what) {
2960    mWhat.reserve(what.size() + 2);
2961    mWhat.push_back('`');
2962    for (char const c : what) {
2963        mWhat.push_back(c);
2964        if ('`' == c) {
2965            mWhat.push_back('`');
2966        }
2967    }
2968    mWhat.push_back('`');
2969}
2970
2971std::ostream& MarkDownCode::write(std::ostream& os) const {
2972    return os << mWhat;
2973}
2974
2975std::ostream& operator<<(std::ostream& os, MarkDownCode const& mdCode) {
2976    return mdCode.write(os);
2977}
2978} // namespace fmt
2979} // namespace detail
2980
2981// provide implementation here so it's only generated once
2982Config::Config() = default;
2983Config::~Config() = default;
2984Config& Config::operator=(Config const&) = default;
2985Config& Config::operator=(Config&&) noexcept(ANKERL_NANOBENCH(NOEXCEPT_STRING_MOVE)) = default;
2986Config::Config(Config const&) = default;
2987Config::Config(Config&&) noexcept = default;
2988
2989// provide implementation here so it's only generated once
2990Result::~Result() = default;
2991Result& Result::operator=(Result const&) = default;
2992Result& Result::operator=(Result&&) noexcept(ANKERL_NANOBENCH(NOEXCEPT_STRING_MOVE)) = default;
2993Result::Result(Result const&) = default;
2994Result::Result(Result&&) noexcept = default;
2995
2996namespace detail {
2997template <typename T>
2998inline constexpr typename std::underlying_type<T>::type u(T val) noexcept {
2999    return static_cast<typename std::underlying_type<T>::type>(val);
3000}

A READING COMPANION

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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 12Next 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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