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bitcoin/src/test/fuzz
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merge-script d0b8d445fb Merge bitcoin/bitcoin#35455: fuzz: improve dbwrapper_concurrent_reads performance 
1ce9e26239 fuzz: improve dbwrapper_concurrent_reads performance (Andrew Toth)

Pull request description:

  The recently merged fuzz harness targeting concurrent reads suffers from poor performance and memory leaks (https://github.com/bitcoin/bitcoin/pull/34866#issuecomment-4614323925).

  Fix this by
  - using a global thread pool instead of a local one per iteration
  - reduce thread count to 8 from 16
  - use a std::map oracle to check results inline instead of reading from the db to get a baseline and storing results

ACKs for top commit:
  marcofleon:
    reACK 1ce9e26239
  l0rinc:
    ACK 1ce9e26239
  sedited:
    ACK 1ce9e26239

Tree-SHA512: 2e532caf246f389105e4a9b487496386d1fe9add7b27fba9ecbbf51a432ef493765ad7095288dd7e0a896860ff150d89ecb6afb8baf311a4af94d8e01b77dba5
2026-06-11 09:47:12 +02:00
..
util
Merge bitcoin/bitcoin#35478: fuzz: reset the mockable steady clock between iterations
2026-06-10 17:05:07 +02:00
addition_overflow.cpp
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
addrman.cpp
scripted-diff: Rename NodeClockContext to FakeNodeClock
2026-06-08 14:27:24 +00:00
asmap_direct.cpp
refactor: Simplify Interpret asmap function
2026-01-20 23:59:43 +01:00
asmap.cpp
refactor: Use span instead of vector for data in util/asmap
2026-01-20 23:59:41 +01:00
autofile.cpp
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
banman.cpp
scripted-diff: Rename NodeClockContext to FakeNodeClock
2026-06-08 14:27:24 +00:00
base_encode_decode.cpp
psbt: Remove default constructor
2026-04-29 14:51:47 -07:00
bech32.cpp
string: replace AsciiCaseInsensitiveKeyEqual with CaseInsensitiveEqual
2026-04-08 16:08:54 -04:00
bip324.cpp
scripted-diff: Bump copyright headers after std::span changes
2025-03-12 19:46:54 +01:00
bitdeque.cpp
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
bitset.cpp
…
block_header.cpp
Merge bitcoin/bitcoin#32740: refactor: Header sync optimisations & simplifications
2026-01-14 11:38:07 -08:00
block_index_tree.cpp
scripted-diff: Rename NodeClockContext to FakeNodeClock
2026-06-08 14:27:24 +00:00
block_index.cpp
refactor: use _MiB consistently for Mebibyte conversions
2026-04-20 11:15:41 +02:00
block.cpp
refactor: Use SpanReader over DataStream
2026-02-06 07:56:57 +01:00
blockfilter.cpp
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
bloom_filter.cpp
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
buffered_file.cpp
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
chain.cpp
validation: remove BLOCK_FAILED_MASK
2026-02-17 21:40:46 +05:30
checkqueue.cpp
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
cluster_linearize.cpp
feefrac: drop comparison and operator{<<,>>} for sorted wrappers
2026-02-27 08:37:33 -05:00
CMakeLists.txt
Merge bitcoin/bitcoin#34887: fuzz: target CDBWrapper
2026-05-21 15:03:49 +01:00
cmpctblock.cpp
scripted-diff: Rename NodeClockContext to FakeNodeClock
2026-06-08 14:27:24 +00:00
coins_view.cpp
coins: add explicit CoinsViewEmpty noop backend
2026-04-08 22:36:13 +02:00
coinscache_sim.cpp
test: fix P2SH output in coins cache fuzz
2026-05-06 09:39:07 +02:00
connman.cpp
scripted-diff: Rename NodeClockContext to FakeNodeClock
2026-06-08 14:27:24 +00:00
crypto_aes256.cpp
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
crypto_aes256cbc.cpp
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
crypto_chacha20.cpp
scripted-diff: Bump copyright headers after std::span changes
2025-03-12 19:46:54 +01:00
crypto_chacha20poly1305.cpp
scripted-diff: Bump copyright headers after std::span changes
2025-03-12 19:46:54 +01:00
crypto_common.cpp
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
crypto_diff_fuzz_chacha20.cpp
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
crypto_hkdf_hmac_sha256_l32.cpp
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
crypto_poly1305.cpp
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
crypto.cpp
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
cuckoocache.cpp
refactor: use _MiB consistently for Mebibyte conversions
2026-04-20 11:15:41 +02:00
dbwrapper.cpp
fuzz: improve dbwrapper_concurrent_reads performance
2026-06-10 14:31:03 -04:00
decode_tx.cpp
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
descriptor_parse.cpp
fuzz: test non-max descriptor satisfaction weight
2026-06-10 13:37:23 -07:00
deserialize.cpp
psbt: Remove default constructor
2026-04-29 14:51:47 -07:00
difference_formatter.cpp
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
eval_script.cpp
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
fee_rate.cpp
Refactor CFeeRate to use FeeFrac internally
2025-07-07 10:39:45 +02:00
feefrac.cpp
feefrac: drop comparison and operator{<<,>>} for sorted wrappers
2026-02-27 08:37:33 -05:00
feeratediagram.cpp
feefrac: drop comparison and operator{<<,>>} for sorted wrappers
2026-02-27 08:37:33 -05:00
fees.cpp
wallet, rpc:remove settxfee and paytxfee
2026-02-13 10:52:25 +01:00
flatfile.cpp
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
float.cpp
refactor: Avoid GCC false positive error
2025-01-20 17:43:58 +01:00
fuzz.cpp
test: Replace DEBUG_LOG_OUT with -printtoconsole=1
2026-03-26 14:41:57 +01:00
fuzz.h
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
FuzzedDataProvider.h
fuzz: pull latest FuzzedDataProvider.h from upstream
2026-01-31 08:45:10 +03:00
golomb_rice.cpp
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
headerssync.cpp
scripted-diff: Rename NodeClockContext to FakeNodeClock
2026-06-08 14:27:24 +00:00
hex.cpp
refactor: Move transaction_identifier.h to primitives
2025-08-11 16:47:51 +01:00
http_request.cpp
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
i2p.cpp
scripted-diff: Rename NodeClockContext to FakeNodeClock
2026-06-08 14:27:24 +00:00
integer.cpp
Merge bitcoin/bitcoin#32497: merkle: pre‑reserve leaves to prevent reallocs with odd vtx count
2026-01-20 15:47:17 -08:00
key_io.cpp
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
key.cpp
key: cleanse ChainCode on destruction
2026-05-12 21:24:19 +02:00
kitchen_sink.cpp
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
load_external_block_file.cpp
scripted-diff: Rename NodeClockContext to FakeNodeClock
2026-06-08 14:27:24 +00:00
locale.cpp
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
merkle.cpp
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
merkleblock.cpp
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
message.cpp
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
mini_miner.cpp
scripted-diff: Rename NodeClockContext to FakeNodeClock
2026-06-08 14:27:24 +00:00
miniscript.cpp
miniscript: Using Func and Expr when parsing keys, hashes, and locktimes
2026-02-02 15:20:51 -08:00
minisketch.cpp
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
muhash.cpp
refactor: Revert "disable self-assign warning for tests"
2025-10-09 20:47:25 +02:00
multiplication_overflow.cpp
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
net_permissions.cpp
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
net.cpp
scripted-diff: Rename NodeClockContext to FakeNodeClock
2026-06-08 14:27:24 +00:00
netaddress.cpp
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
netbase_dns_lookup.cpp
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
node_eviction.cpp
refactor: Use NodeClock::time_point for m_connected
2026-04-13 09:49:13 +02:00
overflow.cpp
fuzz: Add fuzz test for checked and saturating add and left shift
2025-01-15 15:44:03 +01:00
p2p_handshake.cpp
scripted-diff: Rename NodeClockContext to FakeNodeClock
2026-06-08 14:27:24 +00:00
p2p_headers_presync.cpp
scripted-diff: Rename NodeClockContext to FakeNodeClock
2026-06-08 14:27:24 +00:00
p2p_transport_serialization.cpp
refactor: Use NodeClock::time_point for CNetMessage::m_time
2026-03-31 09:48:06 +02:00
package_eval.cpp
test: Use operator<< for time_points instead of manual TickSinceEpoch
2026-05-27 10:33:35 +02:00
parse_hd_keypath.cpp
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
parse_iso8601.cpp
Remove wallet::ParseISO8601DateTime, use ParseISO8601DateTime instead
2024-12-02 15:09:31 +01:00
parse_numbers.cpp
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
parse_script.cpp
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
parse_univalue.cpp
fuzz: Limit parse_univalue input length
2024-07-19 15:39:02 +02:00
partially_downloaded_block.cpp
scripted-diff: Rename NodeClockContext to FakeNodeClock
2026-06-08 14:27:24 +00:00
pcp.cpp
IWYU fixes
2026-05-16 03:36:51 +10:00
policy_estimator_io.cpp
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
policy_estimator.cpp
Merge bitcoin/bitcoin#33629: Cluster mempool
2025-11-25 10:35:11 +00:00
poolresource.cpp
refactor: use _MiB consistently for Mebibyte conversions
2026-04-20 11:15:41 +02:00
pow.cpp
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
prevector.cpp
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
primitives_transaction.cpp
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
process_message.cpp
scripted-diff: Rename NodeClockContext to FakeNodeClock
2026-06-08 14:27:24 +00:00
process_messages.cpp
scripted-diff: Rename NodeClockContext to FakeNodeClock
2026-06-08 14:27:24 +00:00
protocol.cpp
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
psbt.cpp
fuzz: Enforce additional version invariants in PSBT fuzzer
2026-04-29 15:04:22 -07:00
random.cpp
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
rbf.cpp
scripted-diff: Rename NodeClockContext to FakeNodeClock
2026-06-08 14:27:24 +00:00
rolling_bloom_filter.cpp
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
rpc.cpp
scripted-diff: Rename NodeClockContext to FakeNodeClock
2026-06-08 14:27:24 +00:00
script_assets_test_minimizer.cpp
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
script_descriptor_cache.cpp
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
script_flags.cpp
refactor: Use SpanReader over DataStream
2026-02-06 07:56:57 +01:00
script_format.cpp
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
script_interpreter.cpp
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
script_ops.cpp
fuzz: remove redundant CScript method calls from script harness
2026-04-20 21:18:03 -03:00
script_parsing.cpp
refactor: use _MiB consistently for Mebibyte conversions
2026-04-20 11:15:41 +02:00
script_sigcache.cpp
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
script_sign.cpp
fuzz: fix dead HD keypaths (de)serialization round-trip
2026-06-07 20:56:03 +02:00
script.cpp
fuzz: remove redundant CScript method calls from script harness
2026-04-20 21:18:03 -03:00
scriptnum_ops.cpp
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
secp256k1_ec_seckey_import_export_der.cpp
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
secp256k1_ecdsa_signature_parse_der_lax.cpp
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
signature_checker.cpp
script/verify_flags: make script_verify_flags type safe
2025-08-14 10:17:32 +10:00
signet.cpp
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
socks5.cpp
scripted-diff: Rename NodeClockContext to FakeNodeClock
2026-06-08 14:27:24 +00:00
span.cpp
scripted-diff: Bump copyright headers after std::span changes
2025-03-12 19:46:54 +01:00
string.cpp
ArgsManager: support command-specific options
2026-04-22 16:45:31 +10:00
strprintf.cpp
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
system.cpp
tests: Add some fuzz test coverage for command-specific args
2026-04-22 17:58:25 +10:00
threadpool.cpp
threadpool: make Submit return Expected instead of throwing
2026-02-17 15:02:40 -05:00
timeoffsets.cpp
…
torcontrol.cpp
fuzz: Improve torcontrol fuzz test
2026-04-03 22:00:29 +02:00
transaction.cpp
coins: add explicit CoinsViewEmpty noop backend
2026-04-08 22:36:13 +02:00
tx_in.cpp
refactor: Use SpanReader over DataStream
2026-02-06 07:56:57 +01:00
tx_out.cpp
refactor: Use SpanReader over DataStream
2026-02-06 07:56:57 +01:00
tx_pool.cpp
refactor: have mining files include what they use
2026-05-22 08:33:36 +02:00
txdownloadman.cpp
scripted-diff: Rename NodeClockContext to FakeNodeClock
2026-06-08 14:27:24 +00:00
txgraph.cpp
clusterlin: adopt STL ranges algorithms (refactor)
2026-02-27 08:38:01 -05:00
txorphan.cpp
scripted-diff: Rename NodeClockContext to FakeNodeClock
2026-06-08 14:27:24 +00:00
txrequest.cpp
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
util.cpp
fuzz: Use time helpers in node_eviction
2026-03-25 16:55:18 +01:00
util.h
Merge bitcoin/bitcoin#21283: Implement BIP 370 PSBTv2
2026-05-05 14:43:28 +02:00
utxo_snapshot.cpp
scripted-diff: Rename NodeClockContext to FakeNodeClock
2026-06-08 14:27:24 +00:00
utxo_total_supply.cpp
scripted-diff: Rename NodeClockContext to FakeNodeClock
2026-06-08 14:27:24 +00:00
validation_load_mempool.cpp
scripted-diff: Rename NodeClockContext to FakeNodeClock
2026-06-08 14:27:24 +00:00
vecdeque.cpp
refactor: Sort includes of touched source files
2025-06-03 19:56:55 +02:00
versionbits.cpp
Merge bitcoin/bitcoin#34779: BIP 323: reserve version bits 5-28 as extra nonce space
2026-06-03 11:56:14 -07:00