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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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▤ block_policy_estimator.cpp

▤ block_policy_estimator.h

▤ estimator_args.cppGuide

▤ estimator_args.hGuide

▤ estimator_man.cppGuide

▤ estimator_man.hGuide

▤ mempool_estimator.cpp

▤ mempool_estimator.h

▤ ephemeral_policy.cppGuide

▤ ephemeral_policy.hGuide

▤ truc_policy.cppGuide

▤ 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

▤ noui.hGuide

▤ outputtype.cppGuide

▤ private_broadcast.cpp

▤ private_broadcast.h

▤ semaphore_grant.hGuide

▤ threadsafety.hGuide

▤ tinyformat.h

▤ torcontrol.cppGuide

▤ validation.cppGuide

▤ validation.h

▤ validationinterface.cpp

▤ validationinterface.h

▤ versionbits_impl.hGuide

▤ versionbits.cpp

▤ versionbits.hGuide

▤ walletinitinterface.hGuide

▤ CMakeLists.txtGuide

▤ libbitcoinkernel.pc.in

bitcoin / src / policy / fees / block_policy_estimator.cpp

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1001        LogWarning("Failed to close fee estimates file %s: %s. Continuing anyway.", fs::PathToString(m_estimation_filepath), SysErrorString(errno));
1002        return;
1003    }
1004    LogDebug(BCLog::ESTIMATEFEE, "Flushed fee estimates to %s.", fs::PathToString(m_estimation_filepath));
1005}
1006
1007bool CBlockPolicyEstimator::Write(AutoFile& fileout) const
1008{
1009    try {
1010        LOCK(m_cs_fee_estimator);
1011        fileout << CURRENT_FEES_FILE_VERSION;
1012        fileout << nBestSeenHeight;
1013        if (BlockSpan() > HistoricalBlockSpan()/2) {
1014            fileout << firstRecordedHeight << nBestSeenHeight;
1015        }
1016        else {
1017            fileout << historicalFirst << historicalBest;
1018        }
1019        fileout << Using<VectorFormatter<EncodedDoubleFormatter>>(buckets);
1020        feeStats->Write(fileout);
1021        shortStats->Write(fileout);
1022        longStats->Write(fileout);
1023    }
1024    catch (const std::exception&) {
1025        LogWarning("Unable to write policy estimator data (non-fatal)");
1026        return false;
1027    }
1028    return true;
1029}
1030
1031bool CBlockPolicyEstimator::Read(AutoFile& filein)
1032{
1033    try {
1034        LOCK(m_cs_fee_estimator);
1035        int nVersionRequired;
1036        filein >> nVersionRequired;
1037        if (nVersionRequired > CURRENT_FEES_FILE_VERSION) {
1038            throw std::runtime_error{strprintf("File version (%d) too high to be read.", nVersionRequired)};
1039        }
1040        if (nVersionRequired < CURRENT_FEES_FILE_VERSION) {
1041            throw std::runtime_error{strprintf("File version (%d) incompatible: Too old to be read", nVersionRequired)};
1042        }
1043
1044        // Read fee estimates file into temporary variables so existing data
1045        // structures aren't corrupted if there is an exception.
1046        unsigned int nFileBestSeenHeight;
1047        filein >> nFileBestSeenHeight;
1048
1049        // nVersionRequired == CURRENT_FEES_FILE_VERSION
1050        unsigned int nFileHistoricalFirst, nFileHistoricalBest;
1051        filein >> nFileHistoricalFirst >> nFileHistoricalBest;
1052        if (nFileHistoricalFirst > nFileHistoricalBest || nFileHistoricalBest > nFileBestSeenHeight) {
1053            throw std::runtime_error("Corrupt estimates file. Historical block range for estimates is invalid");
1054        }
1055        std::vector<double> fileBuckets;
1056        filein >> Using<VectorFormatter<EncodedDoubleFormatter>>(fileBuckets);
1057        size_t numBuckets = fileBuckets.size();
1058        if (numBuckets <= 1 || numBuckets > 1000) {
1059            throw std::runtime_error("Corrupt estimates file. Must have between 2 and 1000 feerate buckets");
1060        }
1061
1062        std::unique_ptr<TxConfirmStats> fileFeeStats(new TxConfirmStats(buckets, bucketMap, MED_BLOCK_PERIODS, MED_DECAY, MED_SCALE));
1063        std::unique_ptr<TxConfirmStats> fileShortStats(new TxConfirmStats(buckets, bucketMap, SHORT_BLOCK_PERIODS, SHORT_DECAY, SHORT_SCALE));
1064        std::unique_ptr<TxConfirmStats> fileLongStats(new TxConfirmStats(buckets, bucketMap, LONG_BLOCK_PERIODS, LONG_DECAY, LONG_SCALE));
1065        fileFeeStats->Read(filein, numBuckets);
1066        fileShortStats->Read(filein, numBuckets);
1067        fileLongStats->Read(filein, numBuckets);
1068
1069        // Fee estimates file parsed correctly
1070        // Copy buckets from file and refresh our bucketmap
1071        buckets = fileBuckets;
1072        bucketMap.clear();
1073        for (unsigned int i = 0; i < buckets.size(); i++) {
1074            bucketMap[buckets[i]] = i;
1075        }
1076
1077        // Destroy old TxConfirmStats and point to new ones that already reference buckets and bucketMap
1078        feeStats = std::move(fileFeeStats);
1079        shortStats = std::move(fileShortStats);
1080        longStats = std::move(fileLongStats);
1081
1082        nBestSeenHeight = nFileBestSeenHeight;
1083        historicalFirst = nFileHistoricalFirst;
1084        historicalBest = nFileHistoricalBest;
1085    }
1086    catch (const std::exception& e) {
1087        LogWarning("Unable to read policy estimator data (non-fatal): %s", e.what());
1088        return false;
1089    }
1090    return true;
1091}
1092
1093void CBlockPolicyEstimator::FlushUnconfirmed()
1094{
1095    const auto startclear{SteadyClock::now()};
1096    LOCK(m_cs_fee_estimator);
1097    size_t num_entries = mapMemPoolTxs.size();
1098    // Remove every entry in mapMemPoolTxs
1099    while (!mapMemPoolTxs.empty()) {
1100        auto mi = mapMemPoolTxs.begin();
1101        _removeTx(mi->first, false); // this calls erase() on mapMemPoolTxs
1102    }
1103    const auto endclear{SteadyClock::now()};
1104    LogDebug(BCLog::ESTIMATEFEE, "Recorded %u unconfirmed txs from mempool in %.3fs\n", num_entries, Ticks<SecondsDouble>(endclear - startclear));
1105}
1106
1107std::chrono::hours CBlockPolicyEstimator::GetFeeEstimatorFileAge()
1108{
1109    auto file_time{fs::last_write_time(m_estimation_filepath)};
1110    auto now{fs::file_time_type::clock::now()};
1111    return std::chrono::duration_cast<std::chrono::hours>(now - file_time);
1112}
1113
1114static std::set<double> MakeFeeSet(const CFeeRate& min_incremental_fee,
1115                                   double max_filter_fee_rate,
1116                                   double fee_filter_spacing)
1117{
1118    std::set<double> fee_set;
1119
1120    const CAmount min_fee_limit{std::max(CAmount(1), min_incremental_fee.GetFeePerK() / 2)};
1121    fee_set.insert(0);
1122    for (double bucket_boundary = min_fee_limit;
1123         bucket_boundary <= max_filter_fee_rate;
1124         bucket_boundary *= fee_filter_spacing) {
1125
1126        fee_set.insert(bucket_boundary);
1127    }
1128
1129    return fee_set;
1130}
1131
1132FeeFilterRounder::FeeFilterRounder(const CFeeRate& minIncrementalFee, FastRandomContext& rng)
1133    : m_fee_set{MakeFeeSet(minIncrementalFee, MAX_FILTER_FEERATE, FEE_FILTER_SPACING)},
1134      insecure_rand{rng}
1135{
1136}
1137
1138CAmount FeeFilterRounder::round(CAmount currentMinFee)
1139{
1140    AssertLockNotHeld(m_insecure_rand_mutex);
1141    std::set<double>::iterator it = m_fee_set.lower_bound(currentMinFee);
1142    if (it == m_fee_set.end() ||
1143        (it != m_fee_set.begin() &&
1144         WITH_LOCK(m_insecure_rand_mutex, return insecure_rand.rand32()) % 3 != 0)) {
1145        --it;
1146    }
1147    return static_cast<CAmount>(*it);
1148}
1149

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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 5

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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