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author | MarcoFalke <falke.marco@gmail.com> | 2022-03-14 15:22:42 +0100 |
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committer | MarcoFalke <falke.marco@gmail.com> | 2022-03-14 15:17:04 +0100 |
commit | fa7deaa0464576a229b5a6ab13ad033c16d0dada (patch) | |
tree | 9bd5ff8033873f76291b69b2d21dfc16c3fe8ccd /src/wallet/coinselection.h | |
parent | 77773b061cb13229a8afb46f6f3ab89fc70eabe3 (diff) | |
download | bitcoin-fa7deaa0464576a229b5a6ab13ad033c16d0dada.tar.xz |
wallet: Pass FastRandomContext& to coin selection
Diffstat (limited to 'src/wallet/coinselection.h')
-rw-r--r-- | src/wallet/coinselection.h | 34 |
1 files changed, 19 insertions, 15 deletions
diff --git a/src/wallet/coinselection.h b/src/wallet/coinselection.h index 496a026999..a0941d32df 100644 --- a/src/wallet/coinselection.h +++ b/src/wallet/coinselection.h @@ -73,8 +73,9 @@ public: }; /** Parameters for one iteration of Coin Selection. */ -struct CoinSelectionParams -{ +struct CoinSelectionParams { + /** Randomness to use in the context of coin selection. */ + FastRandomContext& rng_fast; /** Size of a change output in bytes, determined by the output type. */ size_t change_output_size = 0; /** Size of the input to spend a change output in virtual bytes. */ @@ -100,17 +101,20 @@ struct CoinSelectionParams * reuse. Dust outputs are not eligible to be added to output groups and thus not considered. */ bool m_avoid_partial_spends = false; - CoinSelectionParams(size_t change_output_size, size_t change_spend_size, CFeeRate effective_feerate, - CFeeRate long_term_feerate, CFeeRate discard_feerate, size_t tx_noinputs_size, bool avoid_partial) : - change_output_size(change_output_size), - change_spend_size(change_spend_size), - m_effective_feerate(effective_feerate), - m_long_term_feerate(long_term_feerate), - m_discard_feerate(discard_feerate), - tx_noinputs_size(tx_noinputs_size), - m_avoid_partial_spends(avoid_partial) - {} - CoinSelectionParams() {} + CoinSelectionParams(FastRandomContext& rng_fast, size_t change_output_size, size_t change_spend_size, CFeeRate effective_feerate, + CFeeRate long_term_feerate, CFeeRate discard_feerate, size_t tx_noinputs_size, bool avoid_partial) + : rng_fast{rng_fast}, + change_output_size(change_output_size), + change_spend_size(change_spend_size), + m_effective_feerate(effective_feerate), + m_long_term_feerate(long_term_feerate), + m_discard_feerate(discard_feerate), + tx_noinputs_size(tx_noinputs_size), + m_avoid_partial_spends(avoid_partial) + { + } + CoinSelectionParams(FastRandomContext& rng_fast) + : rng_fast{rng_fast} {} }; /** Parameters for filtering which OutputGroups we may use in coin selection. @@ -246,10 +250,10 @@ std::optional<SelectionResult> SelectCoinsBnB(std::vector<OutputGroup>& utxo_poo * @param[in] target_value The target value to select for * @returns If successful, a SelectionResult, otherwise, std::nullopt */ -std::optional<SelectionResult> SelectCoinsSRD(const std::vector<OutputGroup>& utxo_pool, CAmount target_value); +std::optional<SelectionResult> SelectCoinsSRD(const std::vector<OutputGroup>& utxo_pool, CAmount target_value, FastRandomContext& rng); // Original coin selection algorithm as a fallback -std::optional<SelectionResult> KnapsackSolver(std::vector<OutputGroup>& groups, const CAmount& nTargetValue); +std::optional<SelectionResult> KnapsackSolver(std::vector<OutputGroup>& groups, const CAmount& nTargetValue, FastRandomContext& rng); } // namespace wallet #endif // BITCOIN_WALLET_COINSELECTION_H |