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bitcoin/src
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merge-script 1a54886b63
Merge bitcoin/bitcoin#24539: Add a "tx output spender" index 
0b96b9c600e0dd946fd4d0e827e7f7cbef7a571a Minimize mempool lock, sync txo spender index only when and if needed (sstone)
3d82ec5bdd019cf1c048c41fe44faa855fcb8b53 Add a "tx output spender" index (sstone)

Pull request description:

  This PR adds a new "tx output spender" index, which allows users to query which tx spent a given outpoint with the `gettxspendingprevout` RPC call that was added by https://github.com/bitcoin/bitcoin/pull/24408.

  Such an index would be extremely useful for Lightning, and probably for most layer-2 protocols that rely on chains of unpublished transactions.

  UPDATE: this PR is ready for review and issues have been addressed:
  - using a watch-only wallet instead would not work if there is a significant number of outpoints to watch (see https://github.com/bitcoin/bitcoin/pull/24539#issuecomment-1276595646)
  - this PR does not require `-txindex` anymore

  We use a composite key with 2 parts (suggested by romanz): hash(spent outpoint) and tx position, with an empty value. Average composite key size is 15 bytes.

  The spending tx can optionally be returned by `gettxspendingprevout` (even it `-txindex is not set`).

ACKs for top commit:
  hodlinator:
    re-ACK 0b96b9c600e0dd946fd4d0e827e7f7cbef7a571a
  sedited:
    Re-ACK 0b96b9c600e0dd946fd4d0e827e7f7cbef7a571a
  fjahr:
    ACK 0b96b9c600e0dd946fd4d0e827e7f7cbef7a571a
  w0xlt:
    reACK 0b96b9c600e0dd946fd4d0e827e7f7cbef7a571a

Tree-SHA512: 95c2c313ef4086e7d5bf1cf1a3c7b91cfe2bb1a0dcb4c9d3aa8a6e5bfde66aaca48d85a1f1251a780523c3e4356ec8a97fe6f5c7145bc6ccb6f820b26716ae01
2026-02-20 09:27:17 +01:00
..
bench
txgraph: pass fallback_order to TxGraph (preparation)
2026-02-09 15:55:58 -05:00
common
Merge bitcoin/bitcoin#34549: net: reduce log level for PCP/NAT-PMP NOT_AUTHORIZED failures
2026-02-19 16:57:54 -08:00
compat
Merge bitcoin/bitcoin#34090: net: Fix -Wmissing-braces
2026-01-22 12:39:52 +01:00
consensus
consensus/doc: explain GetValueOut() precondition
2026-02-02 19:32:14 +01:00
crc32c
Update crc32c subtree to latest upstream master
2025-08-07 09:27:25 +01:00
crypto
iwyu: Add temporary mapping to work around upstream bug
2026-01-30 11:50:17 +00:00
index
Add a "tx output spender" index
2026-02-19 11:41:53 +01:00
init
log: Print warning about privacy-sensitive log info unconditionally
2026-01-27 13:08:50 +01:00
interfaces
refactor: interfaces, make 'createTransaction' less error-prone
2026-02-06 18:15:59 -05:00
ipc
cmake: Add missed Boost::headers
2026-02-05 13:46:14 +00:00
kernel
Merge bitcoin/bitcoin#34546: kernel: Avoid duplicating symbols in the kernel library
2026-02-13 11:11:14 +00:00
leveldb
Bump leveldb subtree
2026-02-03 11:19:01 +01:00
logging
logging: use util/log.h where possible
2026-02-02 17:22:31 +00:00
minisketch
Update minisketch subtree to latest upstream
2025-10-13 12:33:23 +01:00
node
Merge bitcoin/bitcoin#24539: Add a "tx output spender" index
2026-02-20 09:27:17 +01:00
policy
Merge bitcoin/bitcoin#33199: fees: enable CBlockPolicyEstimator return sub 1 sat/vb fee rate estimates
2026-02-19 11:41:34 -08:00
primitives
txgraph: pass fallback_order to TxGraph (preparation)
2026-02-09 15:55:58 -05:00
qt
Merge bitcoin/bitcoin#34582: rpc: Properly parse -rpcworkqueue/-rpcthreads
2026-02-19 17:44:52 +01:00
rpc
Merge bitcoin/bitcoin#24539: Add a "tx output spender" index
2026-02-20 09:27:17 +01:00
script
Merge bitcoin/bitcoin#32745: scripted-diff: Update DeriveType enum values to mention ranged derivations
2026-02-19 13:27:29 +01:00
secp256k1
Update secp256k1 subtree to latest master
2026-02-02 15:21:14 +00:00
support
kernel: avoid potential duplicate object in shared library/binary
2026-02-13 08:50:50 +01:00
test
Merge bitcoin/bitcoin#24539: Add a "tx output spender" index
2026-02-20 09:27:17 +01:00
univalue
ci, iwyu: Fix warnings in src/univalue and treat them as errors
2026-01-31 10:41:50 +00:00
util
Merge bitcoin/bitcoin#34577: http: fix submission during shutdown race
2026-02-19 12:41:12 -08:00
wallet
Merge bitcoin/bitcoin#32138: wallet, rpc: remove settxfee and paytxfee
2026-02-18 16:36:13 -08:00
zmq
ci, iwyu: Fix warnings in src/zmq and treat them as errors
2026-01-29 14:38:35 +00:00
.clang-format
ci, iwyu: Fix warnings in src/zmq and treat them as errors
2026-01-29 14:38:35 +00:00
.clang-tidy
doc: Clarify why performance-move-const-arg.CheckTriviallyCopyableMove=false
2026-02-06 08:37:19 +01:00
addrdb.cpp
log: Properly log warnings with warn loglevel in addrdb
2025-07-10 11:24:40 +02:00
addrdb.h
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
addresstype.cpp
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
addresstype.h
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
addrman_impl.h
refactor: Enforce readability-avoid-const-params-in-decls
2026-01-14 23:04:12 +01:00
addrman.cpp
refactor: Unify asmap version calculation and naming
2026-01-20 23:45:29 +01:00
addrman.h
refactor: Enforce readability-avoid-const-params-in-decls
2026-01-14 23:04:12 +01:00
arith_uint256.cpp
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
arith_uint256.h
refactor(headerssync): Extract test constants ahead of breakup into functions
2025-09-12 22:28:41 +02:00
attributes.h
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
banman.cpp
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
banman.h
doc: remove For ... comments
2025-05-19 16:40:33 +01:00
base58.cpp
clang-tidy: Apply modernize-deprecated-headers
2025-06-03 15:13:54 +02:00
base58.h
…
bech32.cpp
scripted-diff: Bump copyright headers after include changes
2025-06-03 15:13:57 +02:00
bech32.h
scripted-diff: Bump copyright headers after include changes
2025-06-03 15:13:57 +02:00
bip324.cpp
refactor: Sort includes of touched source files
2025-06-03 19:56:55 +02:00
bip324.h
…
bitcoin-chainstate.cpp
kernel: Add Handle/View pattern for BlockValidationState
2026-01-21 19:40:25 +05:30
bitcoin-cli-res.rc
doc, windows: CompanyName "Bitcoin" => "Bitcoin Core project"
2025-06-10 15:14:24 +02:00
bitcoin-cli.cpp
wallet, rpc:remove settxfee and paytxfee
2026-02-13 10:52:25 +01:00
bitcoin-res.rc
doc, windows: CompanyName "Bitcoin" => "Bitcoin Core project"
2025-06-10 15:14:24 +02:00
bitcoin-tx-res.rc
doc, windows: CompanyName "Bitcoin" => "Bitcoin Core project"
2025-06-10 15:14:24 +02:00
bitcoin-tx.cpp
Merge bitcoin/bitcoin#34084: scripted-diff: [doc] Unify stale copyright headers
2025-12-19 16:56:02 +00:00
bitcoin-util-res.rc
doc, windows: CompanyName "Bitcoin" => "Bitcoin Core project"
2025-06-10 15:14:24 +02:00
bitcoin-util.cpp
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
bitcoin-wallet-res.rc
doc, windows: CompanyName "Bitcoin" => "Bitcoin Core project"
2025-06-10 15:14:24 +02:00
bitcoin-wallet.cpp
Remove no longer necessary WinCmdLineArgs class
2025-10-06 19:41:35 +01:00
bitcoin.cpp
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
bitcoind-res.rc
doc, windows: CompanyName "Bitcoin" => "Bitcoin Core project"
2025-06-10 15:14:24 +02:00
bitcoind.cpp
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
blockencodings.cpp
log,blocks: avoid ComputeTotalSize and GetHash work when logging is disabled
2026-01-19 20:20:13 +01:00
blockencodings.h
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
blockfilter.cpp
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
blockfilter.h
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
chain.cpp
Merge bitcoin/bitcoin#32740: refactor: Header sync optimisations & simplifications
2026-01-14 11:38:07 -08:00
chain.h
validation: remove BLOCK_FAILED_MASK
2026-02-17 21:40:46 +05:30
chainparams.cpp
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
chainparams.h
refactor: Enforce readability-avoid-const-params-in-decls
2026-01-14 23:04:12 +01:00
chainparamsbase.cpp
scripted-diff: Bump copyright headers after include changes
2025-06-03 15:13:57 +02:00
chainparamsbase.h
refactor: Enforce readability-avoid-const-params-in-decls
2026-01-14 23:04:12 +01:00
chainparamsseeds.h
contrib: update fixed seeds
2025-09-03 11:23:30 +01:00
checkqueue.h
logging: use util/log.h where possible
2026-02-02 17:22:31 +00:00
clientversion.cpp
refactor: Avoid -W*-whitespace in git archive
2025-11-13 09:33:36 +01:00
clientversion.h
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
cluster_linearize.h
clusterlin: inline GetReachable into Deactivate (optimization)
2026-02-17 09:04:36 -05:00
CMakeLists.txt
Merge bitcoin/bitcoin#24539: Add a "tx output spender" index
2026-02-20 09:27:17 +01:00
coins.cpp
Merge bitcoin/bitcoin#34165: coins: don't mutate main cache when connecting block
2026-02-19 22:10:41 -05:00
coins.h
Merge bitcoin/bitcoin#34165: coins: don't mutate main cache when connecting block
2026-02-19 22:10:41 -05:00
compressor.cpp
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
compressor.h
…
core_io.cpp
Merge bitcoin/bitcoin#34524: refactor: [rpc] Remove confusing and brittle integral casts (take 2)
2026-02-09 13:32:28 +00:00
core_io.h
refactor: [move-only] Merge core_io module
2026-01-19 12:57:16 +01:00
core_memusage.h
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
cuckoocache.h
doc: remove For ... comments
2025-05-19 16:40:33 +01:00
dbwrapper.cpp
logging: use util/log.h where possible
2026-02-02 17:22:31 +00:00
dbwrapper.h
refactor: Use SpanReader over DataStream
2026-02-02 18:42:44 +01:00
deploymentinfo.cpp
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
deploymentinfo.h
refactor: Enforce readability-avoid-const-params-in-decls
2026-01-14 23:04:12 +01:00
deploymentstatus.cpp
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
deploymentstatus.h
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
dummywallet.cpp
wallet, rpc:remove settxfee and paytxfee
2026-02-13 10:52:25 +01:00
external_signer.cpp
util: Remove brittle and confusing sp::Popen(std::string)
2026-02-17 12:55:26 +01:00
external_signer.h
util: Remove brittle and confusing sp::Popen(std::string)
2026-02-17 12:55:26 +01:00
flatfile.cpp
logging: use util/log.h where possible
2026-02-02 17:22:31 +00:00
flatfile.h
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
hash.cpp
…
hash.h
…
headerssync.cpp
refactor: Use reference for chain_start in HeadersSyncState
2025-11-20 11:34:21 +09:00
headerssync.h
refactor: Use reference for chain_start in HeadersSyncState
2025-11-20 11:34:21 +09:00
httprpc.cpp
Merge bitcoin/bitcoin#34084: scripted-diff: [doc] Unify stale copyright headers
2025-12-19 16:56:02 +00:00
httprpc.h
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
httpserver.cpp
Merge bitcoin/bitcoin#34577: http: fix submission during shutdown race
2026-02-19 12:41:12 -08:00
httpserver.h
http: replace WorkQueue and threads handling for ThreadPool
2026-01-30 16:17:12 -05:00
i2p.cpp
log: Remove brittle and confusing LogPrintLevel
2025-12-13 13:43:24 +01:00
i2p.h
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
indirectmap.h
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
init.cpp
Merge bitcoin/bitcoin#24539: Add a "tx output spender" index
2026-02-20 09:27:17 +01:00
init.h
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
key_io.cpp
scripted-diff: Bump copyright headers after include changes
2025-06-03 15:13:57 +02:00
key_io.h
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
key.cpp
Merge bitcoin/bitcoin#29675: wallet: Be able to receive and spend inputs involving MuSig2 aggregate keys
2025-10-14 16:25:52 -04:00
key.h
sign: Add CreateMuSig2PartialSig
2025-09-30 11:06:43 -07:00
logging.cpp
logging: Move message formatting to util/log.h
2026-02-02 17:22:31 +00:00
logging.h
logging: Move message formatting to util/log.h
2026-02-02 17:22:31 +00:00
mapport.cpp
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
mapport.h
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
memusage.h
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
merkleblock.cpp
Merge bitcoin/bitcoin#32740: refactor: Header sync optimisations & simplifications
2026-01-14 11:38:07 -08:00
merkleblock.h
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
musig.cpp
musig: Move MUSIG_CHAINCODE to musig.cpp
2025-11-24 18:48:43 +01:00
musig.h
musig: Move MUSIG_CHAINCODE to musig.cpp
2025-11-24 18:48:43 +01:00
net_permissions.cpp
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
net_permissions.h
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
net_processing.cpp
rpc: Add abortprivatebroadcast
2026-02-11 19:46:19 -05:00
net_processing.h
rpc: Add abortprivatebroadcast
2026-02-11 19:46:19 -05:00
net_types.cpp
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
net_types.h
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
net.cpp
Merge bitcoin/bitcoin#34483: refactor: Use SpanReader over DataStream
2026-02-06 18:00:18 -08:00
net.h
Merge bitcoin/bitcoin#34511: test: fully reset the state of CConnman in tests
2026-02-13 11:17:26 +00:00
netaddress.cpp
refactor: increase string_view usage
2025-10-02 12:53:55 +01:00
netaddress.h
refactor: Enforce readability-avoid-const-params-in-decls
2026-01-14 23:04:12 +01:00
netbase.cpp
Modernize GetBindAddress()
2026-01-22 10:35:14 -05:00
netbase.h
Merge bitcoin/bitcoin#34242: Prepare string and net utils for future HTTP operations
2026-01-23 13:25:42 +01:00
netgroup.cpp
refactor: Use span instead of vector for data in util/asmap
2026-01-20 23:59:41 +01:00
netgroup.h
refactor: Use span instead of vector for data in util/asmap
2026-01-20 23:59:41 +01:00
netmessagemaker.h
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
noui.cpp
noui: Remove always empty caption while formatting
2026-01-14 19:39:01 +01:00
noui.h
refactor: Remove empty caption from ThreadSafeMessageBox
2026-01-14 19:36:14 +01:00
outputtype.cpp
refactor: increase string_view usage
2025-10-02 12:53:55 +01:00
outputtype.h
refactor: increase string_view usage
2025-10-02 12:53:55 +01:00
pow.cpp
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
pow.h
refactor: Enforce readability-avoid-const-params-in-decls
2026-01-14 23:04:12 +01:00
prevector.h
refactor: Prefer <=> over multiple relational operators
2025-11-03 14:39:50 +01:00
private_broadcast.cpp
net: Add PrivateBroadcast::GetBroadcastInfo
2026-02-11 19:46:12 -05:00
private_broadcast.h
net: Add PrivateBroadcast::GetBroadcastInfo
2026-02-11 19:46:12 -05:00
protocol.cpp
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
protocol.h
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
psbt.cpp
refactor: Use SpanReader over DataStream
2026-02-06 07:56:57 +01:00
psbt.h
refactor: Avoid copies by using const references or by move-construction
2026-01-14 23:03:47 +01:00
pubkey.cpp
pubkey: Return tweaks from BIP32 derivation
2025-09-30 11:06:09 -07:00
pubkey.h
refactor: Remove all operator!= definitions
2025-11-03 14:39:48 +01:00
random.cpp
logging: use util/log.h where possible
2026-02-02 17:22:31 +00:00
random.h
refactor: Enforce readability-avoid-const-params-in-decls
2026-01-14 23:04:12 +01:00
randomenv.cpp
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
randomenv.h
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
rest.cpp
Merge bitcoin/bitcoin#34524: refactor: [rpc] Remove confusing and brittle integral casts (take 2)
2026-02-09 13:32:28 +00:00
rest.h
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
scheduler.cpp
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
scheduler.h
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
semaphore_grant.h
threading: semaphore: move CountingSemaphoreGrant to its own header
2025-05-10 03:31:30 +00:00
serialize.h
refactor: Use empty() over eof() in the streams interface
2026-02-02 17:55:10 +01:00
signet.cpp
logging: use util/log.h where possible
2026-02-02 17:22:31 +00:00
signet.h
kernel: Remove some unnecessary non-kernel includes
2025-12-21 10:24:09 +01:00
span.h
…
streams.cpp
refactor: Add AutoFile::size
2025-11-14 01:17:38 +02:00
streams.h
Merge bitcoin/bitcoin#34465: refactor: separate log generation from log handling
2026-02-07 23:01:17 +01:00
sync.cpp
logging: use util/log.h where possible
2026-02-02 17:22:31 +00:00
sync.h
logging: use util/log.h where possible
2026-02-02 17:22:31 +00:00
threadsafety.h
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
tinyformat.h
…
torcontrol.cpp
refactor: Use std::bind_front over std::bind
2026-01-20 15:30:46 +01:00
torcontrol.h
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
txdb.cpp
validation: Use dirty entry count in flush warnings and disk space checks
2026-02-08 08:23:37 +01:00
txdb.h
Merge bitcoin/bitcoin#33866: refactor: Let CCoinsViewCache::BatchWrite return void
2026-01-02 16:49:23 -08:00
txgraph.cpp
txgraph: use fallback order to sort chunks (feature)
2026-02-09 15:55:58 -05:00
txgraph.h
txgraph: pass fallback_order to TxGraph (preparation)
2026-02-09 15:55:58 -05:00
txmempool.cpp
txgraph: pass fallback_order to TxGraph (preparation)
2026-02-09 15:55:58 -05:00
txmempool.h
Rework CTxMemPool::GetChildren() to not use epochs
2026-01-22 21:51:13 -05:00
txrequest.cpp
Fix compilation for old Boost versions
2025-12-18 22:38:02 +01:00
txrequest.h
doc: fix double-word typos in comments
2025-12-30 12:12:26 -08:00
uint256.cpp
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
uint256.h
refactor: Remove all operator!= definitions
2025-11-03 14:39:48 +01:00
undo.h
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
validation.cpp
Merge bitcoin/bitcoin#34165: coins: don't mutate main cache when connecting block
2026-02-19 22:10:41 -05:00
validation.h
Merge bitcoin/bitcoin#34165: coins: don't mutate main cache when connecting block
2026-02-19 22:10:41 -05:00
validationinterface.cpp
logging: use util/log.h where possible
2026-02-02 17:22:31 +00:00
validationinterface.h
refactor: Convert ChainstateRole enum to struct
2025-12-12 06:49:59 -04:00
versionbits_impl.h
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
versionbits.cpp
Merge bitcoin/bitcoin#34084: scripted-diff: [doc] Unify stale copyright headers
2025-12-19 16:56:02 +00:00
versionbits.h
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00
walletinitinterface.h
scripted-diff: [doc] Unify stale copyright headers
2025-12-16 22:21:15 +01:00