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path: root/src/wallet/coinselection.h
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2022-01-06Add src/wallet/* code to wallet:: namespaceRussell Yanofsky
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
2021-12-05Use SelectionResult for waste calculationAndrew Chow
2021-12-05Return SelectionResult from SelectCoinsSRDAndrew Chow
Changes SelectCoinsSRD to return a SelectionResult.
2021-12-05Return SelectionResult from KnapsackSolverAndrew Chow
Returns a std::optional<SelectionResult> from KnapsackSolver instead of using out parameters for the inputs set and selected value.
2021-12-05Return SelectionResult from SelectCoinsBnBAndrew Chow
Removes coins_out and value_ret has SelectCoinsBnB return a std::optional<SelectionResult>
2021-12-05Make member variables of SelectionResult privateAndrew Chow
2021-12-05Introduce SelectionResult structAndrew Chow
Introduces a SelectionResult struct which contains the set of selected inputs and the total transaction fee for the transaction. This will be used by the various SelectCoins* functions. Additionally helpers are provided to compute the total input value and result comparisons.
2021-10-05Merge bitcoin/bitcoin#22951: consensus: move amount.h into consensusMarcoFalke
9d0379cea6c164610d05287ae6dd4e66f35b92b3 consensus: use <cstdint> over <stdint.h> in amount.h (fanquake) 863e52fe63a67fa020fb1ef527b9095a35ab77a5 consensus: make COIN & MAX_MONEY constexpr (fanquake) d09071da5bc997f2de1f55ca7a9babc3d7619329 [MOVEONLY] consensus: move amount.h into consensus (fanquake) Pull request description: A first step (of a few) towards some source code reorganization, as well as making libbitcoinconsensus slightly more self contained. Related to #15732. ACKs for top commit: MarcoFalke: concept ACK 9d0379cea6c164610d05287ae6dd4e66f35b92b 🏝 Tree-SHA512: 97fc79262dcb8c00996852a288fee69ddf8398ae2c95700bba5b326f1f38ffcfaf8fa66e29d0cb446d9b3f4e608a96525fae0c2ad9cd531ad98ad2a4a687cd6a
2021-09-30[MOVEONLY] consensus: move amount.h into consensusfanquake
Move amount.h to consensus/amount.h. Renames, adds missing and removes uneeded includes.
2021-09-29Allow CInputCoin to also be constructed with COutPoint and CTxOutAndrew Chow
2021-09-03Merge bitcoin/bitcoin#17526: Add Single Random Draw as an additional coin ↵Samuel Dobson
selection algorithm 3633b667ffca5a715d9fb27e977515c1e24f600a Use SelectCoinsSRD if it has less waste (Andrew Chow) 8bf789b4b4b26082aea1d91c4d7aa8b01aedfdcf Add SelectCoinsSRD function (Andrew Chow) 2ad3b5d2ad03f781f564ee697ef11e18b2edcea3 tests: wallet_basic lock needed unspents (Andrew Chow) b77885f13e480304085c654f1b948b20bba63452 tests: wallet_txn explicilty specify inputs (Andrew Chow) 59ba7d2861359f19fa740da9daad1a199409583f tests: rpc_fundrawtx better test for UTXO inclusion with include_unsafe (Andrew Chow) a165bfbe44b4db3a40b8d1ba8095035367c932a7 tests: rpc_fundrawtx use specific inputs for unavailable change test (Andrew Chow) df765a484d84702f066e127813fa45a7d440a957 tests: rpc_fundrawtx lock to UTXO types (Andrew Chow) Pull request description: To ease in the use of SRD as our fallback mechanism, this PR adds it as a secondary fallback algorithm in addition to the knapsack solver. Since #22009, the solution with the least waste will be chosen. This pattern is continued with SRD simply being another solution whose waste is compared. ACKs for top commit: glozow: reACK 3633b66 via `git range-diff 981b9d1...3633b66`, thanks for taking the suggestions laanwj: Concept and code review ACK 3633b667ffca5a715d9fb27e977515c1e24f600a Tree-SHA512: 895659f553fea2230990136565bdf18b1328de8b0ce47f06b64bb4d69301f6dd68cb38debe5c24fb6de1317b735fc020a987c541f00bbea65229de47e53adf92
2021-09-23Add SelectCoinsSRD functionAndrew Chow
2021-09-05doc: Clarify that change_cost cannot be negative in GetSelectionWastebenthecarman
2021-08-27Add waste metric calculation functionAndrew Chow
2021-05-19Have OutputGroup determine the value to useAndrew Chow
Instead of hijacking the effective_feerate to use the correct value during coin selection, have OutputGroup be aware of whether we are subtracting the fee from the outputs and provide the correct value to use for selection. To do this, OutputGroup now takes CoinSelectionParams and has a new function GetSelectionAmount().
2021-05-19Roll static tx fees into nValueToSelect instead of having it be separateAndrew Chow
The fees for transaction overhead and recipient outputs are now included in nTargetValue instead of being a separate parameter. For the coin selection algorithms, it doesn't matter that these are separate as in either case, the algorithm needs to select enough to cover these fees. Note that setting nValueToSelect is changed as it now includes not_input_fees. Without the change to how nValueToSelect is increased for KnapsackSolver, this would result in overpaying fees. The change to increase by the difference between nFeeRet and not_input_fees allows this to have the same behavior as previously. Additionally, because we assume that KnapsackSolver will always find a solution that requires change (we assume that BnB always finds a non-change solution), we also include the fee for the change output in KnapsackSolver's target. As part of this, we also use the changeless nFeeRet when iterating for KnapsackSolver. This is because we include the change fee when doing KnapsackSolver, so nFeeRet on further iterations won't include the change fee.
2021-04-30rpc: include_unsafe option for fundrawtransactiont-bast
Allow RPC users to opt-in to unsafe inputs when funding a raw transaction. Applications that need to manage a complex RBF flow (such as lightning nodes using anchor outputs) are very limited if they can only use safe inputs. Fixes #21299
2021-04-26[docs] add doxygen comments to wallet codeglozow
Co-authored-by: Xekyo <murch@murch.one>
2021-02-01Merge #20040: wallet: Refactor OutputGroups to handle fees and spending ↵Samuel Dobson
eligibility on grouping 5d4597666d589e39354e0d8dd5b2afbe1a5d7d8e Rewrite OutputGroups to be clearer and to use scriptPubKeys (Andrew Chow) f6b305273910db0e46798d361413a7e878cb45f7 Explicitly filter out partial groups when we don't want them (Andrew Chow) 416d74fb1687ae1d47a58c153d09d9afe0b6dc60 Move OutputGroup positive only filtering into Insert (Andrew Chow) d895e98b594b873f3d34c8ba63e9b55125d51b5a Move EligibleForSpending into GroupOutputs (Andrew Chow) 99b399aba5d27476b61b4865cc39553d03965d57 Move fee setting of OutputGroup to Insert (Andrew Chow) 6148a8acda5e594bb9b3b2d989056f9e03ddbdbd Move GroupOutputs into SelectCoinsMinConf (Andrew Chow) 2acad036575ec998f8bbe4f10f6206b1c8ad3d23 Remove OutputGroup non-default constructors (Andrew Chow) Pull request description: Even after #17458, we still deal with setting fees of an `OutputGroup` and filtering the `OutputGroup` outside of the struct. We currently make all of the `OutputGroup`s in `SelectCoins` and then copy and modify them within each `SelectCoinsMinConf` scenario. This PR changes this to constructing the `OutputGroup`s within the `SelectCoinsMinConf` so that the scenario can be taken into account during the group construction. Furthermore, setting of fees and filtering for effective value is moved into `OutputGroup::Insert` itself so that we don't add undesirable outputs to an `OutputGroup` rather than deleting them afterwards. To facilitate fee calculation and effective value filtering during `OutputGroup::Insert`, `OutputGroup` now takes the feerates in its constructor and computes the fees and effective value for each output during `Insert`. While removing `OutputGroup`s in accordance with the `CoinEligibilityFilter` still requires creating the `OutputGroup`s first, we can do that within the function that makes them - `GroupOutput`s. ACKs for top commit: Xekyo: Code review ACK: https://github.com/bitcoin/bitcoin/pull/20040/commits/5d4597666d589e39354e0d8dd5b2afbe1a5d7d8e fjahr: Code review ACK 5d4597666d589e39354e0d8dd5b2afbe1a5d7d8e meshcollider: Light utACK 5d4597666d589e39354e0d8dd5b2afbe1a5d7d8e Tree-SHA512: 35965b6d49a87f4ebb366ec4f00aafaaf78e9282481ae2c9682b515a3a9f2cbcd3cd6e202fee29489d48fe7f3a7cede4270796f5e72bbaff76da647138fb3059
2020-12-31scripted-diff: Bump copyright headersMarcoFalke
-BEGIN VERIFY SCRIPT- ./contrib/devtools/copyright_header.py update ./ -END VERIFY SCRIPT-
2020-10-02Explicitly filter out partial groups when we don't want themAndrew Chow
Instead of hacking OutputGroup::m_ancestors to discourage the inclusion of partial groups via the eligibility filter, add a parameter to the eligibility filter that indicates whether we want to include the group. Then for those partial groups, don't return them in GroupOutputs if we indicate they aren't desired.
2020-10-02Move OutputGroup positive only filtering into InsertAndrew Chow
2020-09-29Move fee setting of OutputGroup to InsertAndrew Chow
OutputGroup will handle the fee and effective value computations inside of Insert. It now needs to take the effective feerate and long term feerates as arguments to its constructor.
2020-09-29Remove OutputGroup non-default constructorsAndrew Chow
2020-08-11Refactor OutputGroups to handle effective values, fees, and filteringAndrew Chow
Instead of having callers set the fees, effective values, and filtering of outputs, do these within OutputGroups themselves as member functions. m_fee and m_long_term_fee is added to OutputGroup to track the fees of the OutputGroup.
2018-09-17amount: Move CAmount CENT to unit test headerMarcoFalke
2018-07-27Update copyright headers to 2018DrahtBot
2018-07-24clean-up: Remove no longer used ivars from CInputCoinKarl-Johan Alm
2018-07-24wallet: Switch to using output groups instead of coins in coin selectionKarl-Johan Alm
2018-07-24wallet: Add output groupingKarl-Johan Alm
2018-07-24wallet: Add input bytes to CInputCoinKarl-Johan Alm
With nInputBytes, coin selection can execute without a reference to the COutput
2018-07-24moveonly: CoinElegibilityFilter into coinselection.hKarl-Johan Alm
2018-03-22Fix missing or inconsistent include guardspracticalswift
2018-03-13Move current coin selection algorithm to coinselection.{cpp,h}Andrew Chow
Moves the current coin selection algorithm out of SelectCoinsMinConf and puts it in coinselection.{cpp,h}. The new function, KnapsackSolver, instead of taking a vector of COutputs, will take a vector of CInputCoins that is prepared by SelectCoinsMinConf.
2018-03-13Remove coinselection.h -> wallet.h circular dependencyAndrew Chow
Changes CInputCoin to coinselection and to use CTransactionRef in order to avoid a circular dependency. Also moves other coin selection specific variables out of wallet.h to coinselectoin.h
2018-03-13Implement Branch and Bound coin selection in a new fileAndrew Chow
Create a new file for coin selection logic and implement the BnB algorithm in it.