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| author | Andrew Chow <achow101-github@achow101.com> | 2019-11-06 14:35:11 -0500 |
|---|---|---|
| committer | Andrew Chow <achow101-github@achow101.com> | 2021-09-23 13:33:25 -0400 |
| commit | 8bf789b4b4b26082aea1d91c4d7aa8b01aedfdcf (patch) | |
| tree | 5b7e6d05db8d18d78a1dd02c420ac23b3454d5e9 /src/wallet/coinselection.h | |
| parent | 2ad3b5d2ad03f781f564ee697ef11e18b2edcea3 (diff) | |
| download | bitcoin-8bf789b4b4b26082aea1d91c4d7aa8b01aedfdcf.tar.xz | |
Add SelectCoinsSRD function
Diffstat (limited to 'src/wallet/coinselection.h')
| -rw-r--r-- | src/wallet/coinselection.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/src/wallet/coinselection.h b/src/wallet/coinselection.h index 35617d455b..0f07017ef2 100644 --- a/src/wallet/coinselection.h +++ b/src/wallet/coinselection.h @@ -10,6 +10,8 @@ #include <primitives/transaction.h> #include <random.h> +#include <optional> + //! target minimum change amount static constexpr CAmount MIN_CHANGE{COIN / 100}; //! final minimum change amount after paying for fees @@ -183,6 +185,15 @@ struct OutputGroup bool SelectCoinsBnB(std::vector<OutputGroup>& utxo_pool, const CAmount& selection_target, const CAmount& cost_of_change, std::set<CInputCoin>& out_set, CAmount& value_ret); +/** Select coins by Single Random Draw. OutputGroups are selected randomly from the eligible + * outputs until the target is satisfied + * + * @param[in] utxo_pool The positive effective value OutputGroups eligible for selection + * @param[in] target_value The target value to select for + * @returns If successful, a pair of set of outputs and total selected value, otherwise, std::nullopt + */ +std::optional<std::pair<std::set<CInputCoin>, CAmount>> SelectCoinsSRD(const std::vector<OutputGroup>& utxo_pool, CAmount target_value); + // Original coin selection algorithm as a fallback bool KnapsackSolver(const CAmount& nTargetValue, std::vector<OutputGroup>& groups, std::set<CInputCoin>& setCoinsRet, CAmount& nValueRet); |