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2023-01-03Merge bitcoin/bitcoin#26289: Use util::Result in for calculating mempool ↵Andrew Chow
ancestors 47c4b1f52ab8d95d7deef83050bad49d1e3e5990 mempool: log/halt when CalculateMemPoolAncestors fails unexpectedly (stickies-v) 5481f65849313ff947f38433b1ac28285a7f7694 mempool: add AssumeCalculateMemPoolAncestors helper function (stickies-v) f911bdfff95eba3793fffaf71a31cc8bfc6f80c9 mempool: use util::Result for CalculateMemPoolAncestors (stickies-v) 66e028f7399b6511f9b73b1cef54b6a6ac38a024 mempool: use util::Result for CalculateAncestorsAndCheckLimits (stickies-v) Pull request description: Upon reviewing the documentation for `CTxMemPool::CalculateMemPoolAncestors`, I noticed `setAncestors` was meant to be an `out` parameter but actually is an `in,out` parameter, as can be observed by adding `assert(setAncestors.empty());` as the first line in the function and running `make check`. This PR fixes this unexpected behaviour and introduces refactoring improvements to make intents and effects of the code more clear. ## Unexpected behaviour This behaviour occurs only in the package acceptance path, currently only triggered by `testmempoolaccept` and `submitpackage` RPCs. In `MemPoolAccept::AcceptMultipleTransactions()`, we first call `PreChecks()` and then `SubmitPackage()` with the same `Workspace ws` reference. `PreChecks` leaves `ws.m_ancestors` in a potentially non-empty state, before it is passed on to `MemPoolAccept::SubmitPackage`. `SubmitPackage` is the only place where `setAncestors` isn't guaranteed to be empty before calling `CalculateMemPoolAncestors`. The most straightforward fix is to just forcefully clear `setAncestors` at the beginning of CalculateMemPoolAncestors, which is done in the first bugfix commit. ## Improvements ### Return value instead of out-parameters This PR updates the function signatures for `CTxMemPool::CalculateMemPoolAncestors` and `CTxMemPool::CalculateAncestorsAndCheckLimits` to use a `util::Result` return type and eliminate both the `setAncestors` `in,out`-parameter as well as the error string. It simplifies the code and makes the intent and effects more explicit. ### Observability There are 7 instances where we currently call `CalculateMemPoolAncestors` without actually checking if the function succeeded because we assume that it can't fail, such as in [miner.cpp](https://github.com/bitcoin/bitcoin/blob/69b10212ea5370606c7a5aa500a70c36b4cbb58f/src/node/miner.cpp#L399). This PR adds a new wrapper `AssumeCalculateMemPoolAncestors` function that logs such unexpected failures, or in case of debug builds even halts the program. It's not crucial to the objective, more of an observability improvement that seems sensible to add on here. ACKs for top commit: achow101: ACK 47c4b1f52ab8d95d7deef83050bad49d1e3e5990 w0xlt: ACK https://github.com/bitcoin/bitcoin/pull/26289/commits/47c4b1f52ab8d95d7deef83050bad49d1e3e5990 glozow: ACK 47c4b1f52ab8d95d7deef83050bad49d1e3e5990 furszy: light code review ACK 47c4b1f5 aureleoules: ACK 47c4b1f52ab8d95d7deef83050bad49d1e3e5990 Tree-SHA512: d908dad00d1a5645eb865c4877cc0bae74b9cd3332a3641eb4a285431aef119f9fc78172d38b55c592168a73dae83242e6af3348815f7b37cbe2d448a3a58648
2022-12-24scripted-diff: Insert missed copyright headerHennadii Stepanov
-BEGIN VERIFY SCRIPT- ./contrib/devtools/copyright_header.py insert src/policy/fees_args.cpp -END VERIFY SCRIPT-
2022-12-24scripted-diff: Bump copyright headersHennadii Stepanov
-BEGIN VERIFY SCRIPT- ./contrib/devtools/copyright_header.py update ./ -END VERIFY SCRIPT- Commits of previous years: - 2021: f47dda2c58b5d8d623e0e7ff4e74bc352dfa83d7 - 2020: fa0074e2d82928016a43ca408717154a1c70a4db - 2019: aaaaad6ac95b402fe18d019d67897ced6b316ee0
2022-12-21Merge bitcoin/bitcoin#26265: POLICY: Relax MIN_STANDARD_TX_NONWITNESS_SIZE ↵Andrew Chow
to 65 non-witness bytes b2aa9e85289fc654106a890c35935e9c76c411fb Add release note for MIN_STANDARD_TX_NONWITNESS_SIZE relaxation (Greg Sanders) 8c5b3646b5afe8a61f5c66478d8e11f0d2ce5108 Relax MIN_STANDARD_TX_NONWITNESS_SIZE to 65 non-witness bytes (Greg Sanders) Pull request description: Since the original fix was set to be a "reasonable" transaction to reduce allocations and the true motivation later revealed, it makes sense to relax this check to something more principled. There are more exotic transaction patterns that could take advantage of a relaxed requirement, such as 1 input, 1 output OP_RETURN to burn a utxo to fees for CPFP purposes when change isn't practical. Two changes could be accomplished: 1) Anything not 64 bytes could be allowed 2) Anything above 64 bytes could be allowed In the Great Consensus Cleanup, suggestion (2) was proposed as a consensus change, and is the simpler of the two suggestions. It would not allow an "empty" OP_RETURN but would reduce the required padding from 22 bytes to 5. The functional test is also modified to test the actual case we care about: 64 bytes Related mailing list discussions here: https://lists.linuxfoundation.org/pipermail/bitcoin-dev/2022-October/020995.html And a couple years earlier: https://lists.linuxfoundation.org/pipermail/bitcoin-dev/2020-May/017883.html ACKs for top commit: achow101: reACK b2aa9e85289fc654106a890c35935e9c76c411fb glozow: reACK b2aa9e85289fc654106a890c35935e9c76c411fb pablomartin4btc: re-ACK https://github.com/bitcoin/bitcoin/commit/b2aa9e85289fc654106a890c35935e9c76c411fb jonatack: ACK b2aa9e85289fc654106a890c35935e9c76c411fb with some suggestions Tree-SHA512: c1ec1af9ddcf31b2272209a4f1ee0c5607399f8172e5a1dfd4604cf98bfb933810dd9369a5917ad122add003327c9fcf6ee26995de3aca41d5c42dba527991ad
2022-12-19Relax MIN_STANDARD_TX_NONWITNESS_SIZE to 65 non-witness bytesGreg Sanders
Since the original fix was set to be a "reasonable" transaction to reduce allocations and the true motivation later revealed, it makes sense to relax this check to something more principled. There are more exotic transaction patterns that could take advantage of a relaxed requirement, such as 1 input, 1 output OP_RETURN to burn a utxo to fees for CPFP purposes when change isn't practical. Two changes could be accomplished: 1) Anything not 64 bytes could be allowed 2) Anything above 64 bytes could be allowed In the Great Consensus Cleanup, suggestion (2) was the route taken. It would not allow an "empty" OP_RETURN but would reduce the required padding from 22 bytes to 5. The functional test is also modified to test the actual case we care about: 64 bytes
2022-12-13mempool: log/halt when CalculateMemPoolAncestors fails unexpectedlystickies-v
When CalculateMemPoolAncestors fails unexpectedly (e.g. it exceeds ancestor/descendant limits even though we expect no limits to be applied), add an error log entry for increased visibility. For debug builds, the application will even halt completely since this is not supposed to happen.
2022-12-13mempool: use util::Result for CalculateMemPoolAncestorsstickies-v
Avoid using setAncestors outparameter, simplify function signatures and avoid creating unused dummy strings.
2022-11-30refactor: Move `txmempool_entry.h` --> `kernel/mempool_entry.h`Hennadii Stepanov
2022-11-16refactor: Move `CTxMemPoolEntry` class to its own moduleHennadii Stepanov
This change nukes the policy/fees->mempool circular dependency. Easy to review using `diff --color-moved=dimmed-zebra`.
2022-10-13add lock annotation for FeeFilterRounder::round()glozow
Calling WITH_LOCK() on a non-recursive mutex requires not holding it beforehand. Co-authored-by: Niklas Gögge <n.goeggi@gmail.com>
2022-10-13Merge bitcoin/bitcoin#24407: fees: make the class FeeFilterRounder thread-safeAndrew Chow
8173f160e085186c9bcc7f3506205c309ee66af6 style: rename variables to match coding style (Vasil Dimov) 8b4ad203d06c5ded6ecebbd7277b29a442d88bcf fees: make FeeFilterRounder::feeset const (Vasil Dimov) e7a5bf6be79e341e037305a4c2d8a1a510a8d709 fees: make the class FeeFilterRounder thread-safe (Vasil Dimov) Pull request description: Make the class `FeeFilterRounder` thread-safe so that its methods can be called concurrently by different threads on the same object. Currently it has just one method (`round()`). The second commit is optional, but it improves readability, showing that the `feeset` member will never be changed, thus does not need protection from concurrent access. ACKs for top commit: jonatack: re-ACK 8173f160e085186c9bcc7f3506205c309ee66af6 laanwj: Code review ACK 8173f160e085186c9bcc7f3506205c309ee66af6 promag: Code review ACK 8173f160e085186c9bcc7f3506205c309ee66af6 Tree-SHA512: 94b809997c485c0d114fa702d0406b980be8eaaebcfefa56808ed670aa943959c2f16cfd0ef72b4752fe2a409a23af1b4b7f2f236e51212957759569e3bbbefd
2022-10-10Merge bitcoin/bitcoin#26118: log: Use steady clock for bench loggingMacroFake
fabf1cdb206e368a9433abf99a5ea2762a5ed2c0 Use steady clock for bench logging (MacroFake) faed342a2338d6a1a26cf977671a736662debae4 scripted-diff: Rename time symbols (MacroFake) Pull request description: Instead of using `0.001` and similar constants to "convert" an int64_t to milliseconds, use the type-safe `Ticks<>` helper. Also, use steady clock instead of system clock, since the durations are used for benchmarking. ACKs for top commit: fanquake: ACK fabf1cdb206e368a9433abf99a5ea2762a5ed2c0 - validation bench output still looks sane. Tree-SHA512: e6525b5fdad6045ca500c56014897d7428ad288aaf375933d3b5939feddf257f6910d562eb66ebcde9186bef9a604ee8d763a318253838318d59df2a285be7c2
2022-10-05refactor: mempool: use CTxMempool::Limitsstickies-v
Simplifies function signatures by removing repetition of all the ancestor/descendant limits, and increases readability by being more verbose by naming the limits, while still reducing the LoC.
2022-09-19Use steady clock for bench loggingMacroFake
2022-08-22fixups for BIP125 doc cleanupglozow
Grammar and readability fixups. Clarifies "bip125-replaceable" helpstrings.
2022-08-04[doc] remove non-signaling mentions of BIP125glozow
Our RBF policy is different from the rules specified in BIP125. For example, the BIP does not mention Rule 6, and our Rule 4 uses the (configurable) incremental relay feerate (distinct from the minimum relay feerate). Those interested in our policy should refer to doc/policy/mempool-replacements.md instead. These rules may also continue to diverge with package RBF and other RBF improvements. Keep references to the BIP125 signaling wrt sequence numbers, since that is still correct and widely used. It is helpful to refer to this as "BIP125 signaling" since it is unambiguous and succint, especially if we have multiple ways to signal replaceability in the future. The rule numbers in doc/policy/mempool-replacements.md correspond largely to those of BIP 125, so we can still refer to them like "Rule 5."
2022-08-03scripted-diff: remove mention of BIP125 from non-signaling var namesglozow
Our RBF policy is different from the rules specified in BIP125 (refer to doc/policy/mempool-replacements.md instead), and will continue to diverge with package RBF. Keep references to BIP125 sequence number, since that is still useful and correct. -BEGIN VERIFY SCRIPT- ren() { sed -i "s:\<$1\>:$2:g" $(git grep -l "\<$1\>" ./src ./test); } ren m_allow_bip125_replacement m_allow_replacement ren allow_bip125_replacement allow_replacement ren MAX_BIP125_REPLACEMENT_CANDIDATES MAX_REPLACEMENT_CANDIDATES -END VERIFY SCRIPT-
2022-08-02Remove ::g_max_datacarrier_bytes globalMacroFake
2022-08-02Pass datacarrier setting into IsStandardMacroFake
2022-08-02Combine datacarrier globals into oneMacroFake
2022-08-02Remove ::GetVirtualTransactionSize() aliasMacroFake
Each alias is only used in one place.
2022-08-02Remove ::fIsBareMultisigStd globalMacroFake
2022-08-02Remove ::dustRelayFeeMacroFake
2022-08-02Remove ::IsStandardTx(tx, reason) aliasMacroFake
Apart from tests, it is only used in one place, so there is no need for an alias.
2022-08-02Remove ::incrementalRelayFee and ::minRelayTxFee globalsMacroFake
2022-06-29Use AutoFile where possibleMacroFake
2022-06-29Merge bitcoin/bitcoin#25290: [kernel 3a/n] Decouple `CTxMemPool` from ↵MacroFake
`ArgsManager` d1684beabe5b738c2cc83de83e1aaef11a761b69 fees: Pass in a filepath instead of referencing gArgs (Carl Dong) 9a3d825c30e8e6118d74a4e568744cb9d03f7f5d init: Remove redundant -*mempool*, -limit* queries (Carl Dong) 6c5c60c4124293d948735756f84efc85262ea66f mempool: Use m_limit for UpdateTransactionsFromBlock (Carl Dong) 9e93b1030182eff92ef91181e17c7dd498c7e164 node/ifaces: Use existing MemPoolLimits (Carl Dong) 38af2bcf358a72b9457d370282e57f4be1c5c849 mempoolaccept: Use limits from mempool in constructor (Carl Dong) 9333427014695ac235c96d48791098168dfdc9db mempool: Introduce (still-unused) MemPoolLimits (Carl Dong) 716bb5fbd31077bbe99d11a54d6c2c250afc8085 scripted-diff: Rename anc/desc size limit vars to indicate SI unit (Carl Dong) 1ecc77321deb61b9f6888e4e10752b9d972fd26e scripted-diff: Rename DEFAULT_MEMPOOL_EXPIRY to indicate time unit (Carl Dong) aa9141cd8185cb7ad532bc16feb9d302b05d9697 mempool: Pass in -mempoolexpiry instead of referencing gArgs (Carl Dong) 51c7a41a5eb6fcb60333812c770d80227cf7b64d init: Only determine maxmempool once (Carl Dong) 386c9472c8764738282e6d163b42e15a8feda7ea mempool: Make GetMinFee() with custom size protected (Carl Dong) 82f00de7a6a60cbc9ad0c6e1d0ffb1bc70c49af5 mempool: Pass in -maxmempool instead of referencing gArgs (Carl Dong) f1941e8bfd2eecc478c7660434b1ebf6a64095a0 pool: Add and use MemPoolOptions, ApplyArgsManOptions (Carl Dong) 0199bd35bb44e32ee0db9b51c9d1bd7518c26f19 fuzz/rbf: Add missing TestingSetup (Carl Dong) ccbaf546a68d6cda8ed3efd0598c0e4121b366bb scripted-diff: Rename DEFAULT_MAX_MEMPOOL_SIZE to indicate SI unit (Carl Dong) fc02f77ca604f0221171bfde3059b34f5d0fb1cd ArgsMan: Add Get*Arg functions returning optional (Carl Dong) Pull request description: This is part of the `libbitcoinkernel` project: #24303, https://github.com/bitcoin/bitcoin/projects/18 ----- As mentioned in the Stage 1 Step 2 description of [the `libbitcoinkernel` project](https://github.com/bitcoin/bitcoin/issues/24303), `ArgsManager` will not be part of `libbitcoinkernel`. Therefore, it is important that we remove any dependence on `ArgsManager` by code that will be part of `libbitcoinkernel`. This is the first in a series of PRs aiming to achieve this. This PR removes `CTxMemPool+MempoolAccept`'s dependency on `ArgsManager` by introducing a `CTxMemPool::Options` struct, which is used to specify `CTxMemPool`'s various options at construction time. These options are: - `-maxmempool` -> `CTxMemPool::Options::max_size` - `-mempoolexpiry` -> `CTxMemPool::Options::expiry` - `-limitancestorcount` -> `CTxMemPool::Options::limits::ancestor_count` - `-limitancestorsize` -> `CTxMemPool::Options::limits::ancestor_size` - `-limitdescendantcount` -> `CTxMemPool::Options::limits::descendant_count` - `-limitdescendantsize` -> `CTxMemPool::Options::limits::descendant_size` More context can be gleaned from the commit messages. The important commits are: - 56eb479ded8bfb2ef635bb6f3b484f9d5952c70d "pool: Add and use MemPoolOptions, ApplyArgsManOptions" - a1e08b70f3068f4e8def1c630d8f50cd54da7832 "mempool: Pass in -maxmempool instead of referencing gArgs" - 6f4bf3ede5812b374828f08fc728ceded2f10024 "mempool: Pass in -mempoolexpiry instead of referencing gArgs" - 5958a7fe4806599fc620ee8c1a881ca10fa2dd16 "mempool: Introduce (still-unused) MemPoolLimits" Reviewers: Help needed in the following commits (see commit messages): - a1e08b70f3068f4e8def1c630d8f50cd54da7832 "mempool: Pass in -maxmempool instead of referencing gArgs" - 0695081a797e9a5d7787b78b0f8289dafcc6bff7 "node/ifaces: Use existing MemPoolLimits" Note to Reviewers: There are perhaps an infinite number of ways to architect `CTxMemPool::Options`, the current one tries to keep it simple, usable, and flexible. I hope we don't spend too much time arguing over the design here since that's not the point. In the case that you're 100% certain that a different design is strictly better than this one in every regard, please show us a fully-implemented branch. ----- TODO: - [x] Use the more ergonomic `CTxMemPool::Options` where appropriate - [x] Doxygen comments for `ApplyArgsManOptions`, `MemPoolOptions` ----- Questions for Reviewers: 1. Should we use `std::chrono::seconds` for `CTxMemPool::Options::expiry` and `CTxMemPool::m_expiry` instead of an `int64_t`? Something else? (`std::chrono::hours`?) 2. Should I merge `CTxMemPool::Limits` inside `CTxMemPool::Options`? ACKs for top commit: MarcoFalke: ACK d1684beabe5b738c2cc83de83e1aaef11a761b69 🍜 ryanofsky: Code review ACK d1684beabe5b738c2cc83de83e1aaef11a761b69. Just minor cleanups since last review, mostly switching to brace initialization Tree-SHA512: 2c138e52d69f61c263f1c3648f01c801338a8f576762c815f478ef5148b8b2f51e91ded5c1be915e678c0b14f6cfba894b82afec58d999d39a7bb7c914736e0b
2022-06-28fees: Pass in a filepath instead of referencing gArgsCarl Dong
2022-06-28scripted-diff: Rename anc/desc size limit vars to indicate SI unitCarl Dong
Better to be explicit when it comes to sizes to avoid unintentional bugs. We use MB and KB all over the place. -BEGIN VERIFY SCRIPT- find_regex="DEFAULT_(ANCESTOR|DESCENDANT)_SIZE_LIMIT" \ && git grep -l -E "$find_regex" \ | xargs sed -i -E "s@$find_regex@\0_KVB@g" -END VERIFY SCRIPT-
2022-06-28mempool: Pass in -maxmempool instead of referencing gArgsCarl Dong
- Store the mempool size limit (-maxmempool) in CTxMemPool as a member. - Remove the requirement to explicitly specify a mempool size limit for CTxMemPool::GetMinFee(...) and LimitMempoolSize(...), just use the stored mempool size limit where possible. - Remove all now-unnecessary instances of: gArgs.GetIntArg("-maxmempool", DEFAULT_MAX_MEMPOOL_SIZE_MB) * 1000000 The code change in CChainState::GetCoinsCacheSizeState() is correct since the coinscache should not repurpose "extra" mempool memory headroom for itself if the mempool doesn't even exist.
2022-06-22scripted-diff: Rename DEFAULT_MAX_MEMPOOL_SIZE to indicate SI unitCarl Dong
Better to be explicit when it comes to sizes to avoid unintentional bugs. We use MB and KB all over the place. -BEGIN VERIFY SCRIPT- find_regex="DEFAULT_MAX_MEMPOOL_SIZE" \ && git grep -l -E "$find_regex" \ | xargs sed -i -E "s@$find_regex@\0_MB@g" -END VERIFY SCRIPT-
2022-06-22Remove LOCKTIME_MEDIAN_TIME_PAST constantMarcoFalke
2022-06-20refactor: move DEFAULT_*_LIMIT assertions from validation to policyfanquake
2022-06-20refactor: move EXTRA_DESCENDANT_TX_SIZE_LIMIT to policy/policy.hfanquake
2022-06-20refactor: use braced initialization in policy/policy.hfanquake
2022-06-20scripted-diff: use static constexpr in policy/policy.hfanquake
-BEGIN VERIFY SCRIPT- sed -i -e "s/static const /static constexpr /" src/policy/policy.h -END VERIFY SCRIPT-
2022-06-20refactor: Move DEFAULT_DESCENDANT_SIZE_LIMIT to policy/policy.hfanquake
2022-06-20refactor: Move DEFAULT_DESCENDANT_LIMIT to policy/policy.hfanquake
2022-06-20refactor: Move DEFAULT_ANCESTOR_SIZE_LIMIT to policy/policy.hfanquake
2022-06-20refactor: Move DEFAULT_ANCESTOR_LIMIT to policy/policy.hCAnon
2022-05-31Move minRelayTxFee to policy/settingsMacroFake
Also fix includes using iwyu
2022-05-17refactor: use C++11 default initializersfanquake
2022-04-18style: rename variables to match coding styleVasil Dimov
Rename the variables that were touched by the previous commit (split logical from style changes). minIncrementalFee -> min_incremental_fee minFeeLimit -> min_fee_limit bucketBoundary -> bucket_boundary feeset -> fee_set FeeFilterRounder::feeset -> FeeFilterRounder::m_fee_set
2022-04-18fees: make FeeFilterRounder::feeset constVasil Dimov
It is only set in the constructor, thus improve readability by marking it as `const` and setting it from the initializer list using a helper function to derive its value. The idea was suggested by Anthony Towns <aj@erisian.com.au> in https://github.com/bitcoin/bitcoin/pull/19268#discussion_r439929792
2022-04-18fees: make the class FeeFilterRounder thread-safeVasil Dimov
So that its methods can be called concurrently by different threads on the same object. Currently it has just one method (`round()`). Co-authored-by: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com>
2022-02-14Remove outdated comment on CFeeRateMurch
This comment described how the constructor of CFeeRate was previously indirectly used to parse fee rate arguments from RPCs. The command line input was actually in sat/vB but due to the use of AmountFromValue() it got converted to BTC/vB. In the constructor this could be rectified by creating a CFeeRate from that given value (in BTC/vB) and COIN as the transaction size, turning the input effectively to sat/vB. Since this usage pattern was removed from the codebase some months ago, the comment is now obsolete. Also: • Use vsize and vbyte instead of size and byte
2022-01-17[validation] better handle errors in SubmitPackageglozow
Behavior change: don't quit right after LimitMempoolSize() when a package is partially submitted. We should still send TransactionAddedToMempool notifications for transactions that were submitted. Not behavior change: add a new package validation result for mempool logic errors.
2021-12-30scripted-diff: Bump copyright headersHennadii Stepanov
-BEGIN VERIFY SCRIPT- ./contrib/devtools/copyright_header.py update ./ -END VERIFY SCRIPT- Commits of previous years: * 2020: fa0074e2d82928016a43ca408717154a1c70a4db * 2019: aaaaad6ac95b402fe18d019d67897ced6b316ee0
2021-12-15Merge bitcoin/bitcoin#22674: validation: mempool validation and submission ↵W. J. van der Laan
for packages of 1 child + parents 046e8ff264be6b888c0f9a9d822e32aa74e19b78 [unit test] package submission (glozow) e12fafda2dfbbdf63f125e5af797ecfaa6488f66 [validation] de-duplicate package transactions already in mempool (glozow) 8310d942e046c5a9b6bd90afdcd3af68dd91e081 [packages] add sanity checks for package vs mempool limits (glozow) be3ff151a1f9665720cdf70d072b098a2f9726a9 [validation] full package accept + mempool submission (glozow) 144a29099a865ac1dc3e5291d9529fbcca9c83a4 [policy] require submitted packages to be child-with-unconfirmed-parents (glozow) d59ddc5c3d1c035474d7bc9fa9f8a0eeb1c8498c [packages/doc] define and document package rules (glozow) ba26169f6035c238378a3c9647213328a006fa23 [unit test] context-free package checks (glozow) 9b2fdca7f03911ac40fe0f8a0b5da534bee4554b [packages] add static IsChildWithParents function (glozow) Pull request description: This is 1 chunk of [Package Mempool Accept](https://gist.github.com/glozow/dc4e9d5c5b14ade7cdfac40f43adb18a); it restricts packages to 1 child with its parents, doesn't allow conflicts, and doesn't have CPFP (yet). Future PRs (see #22290) will add RBF and CPFP within packages. ACKs for top commit: laanwj: Code review ACK 046e8ff264be6b888c0f9a9d822e32aa74e19b78 Tree-SHA512: 37dbba37d527712f8efef71ee05c90a8308992615af35f5e0cfeafc60d859cc792737d125aac526e37742fe7683ac8c155ac24af562426213904333c01260c95
2021-12-03Merge bitcoin/bitcoin#23413: Replace MakeSpan helper with Span deduction guideMarcoFalke
11daf6ceb1d9ea1f8d638b123eecfe39d162a7c3 More Span simplifications (Pieter Wuille) 568dd2f83900a11a4dbba1250722791a135bf0a9 Replace MakeSpan helper with Span deduction guide (Pieter Wuille) Pull request description: C++17 supports [user-defined deduction guides](https://en.cppreference.com/w/cpp/language/class_template_argument_deduction), allowing class constructors to be invoked without specifying class template arguments. Instead, the code can contain rules to infer the template arguments from the constructor argument types. This alleviates the need for the `MakeSpan` helper. Convert the existing MakeSpan rules into deduction rules for `Span` itself, and replace all invocations of `MakeSpan` with just `Span` ones. ACKs for top commit: MarcoFalke: re-ACK 11daf6ceb1d9ea1f8d638b123eecfe39d162a7c3 Only change is removing a hunk in the tests 🌕 Tree-SHA512: 10f3e82e4338f39d9b7b407cd11aac7ebe1e9191b58e3d7f4e5e338a4636c0e126b4a1d912127c7446f57ba356c8d6544482e47f97901efea6a54fffbfd7895f
generated by cgit v1.2.3 (git 2.26.2) at 2024-11-14 15:54:03 +0000