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Merge pull request #4906

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fc0f52d Added a test for the pruning of extraneous inputs after ApproximateBestSet (Murch)
af9510e Moved set reduction to the end of ApproximateBestSubset to reduce performance impact (Murch)
5c03483 Coinselection prunes extraneous inputs from ApproximateBestSubset (AlSzacrel)
This commit is contained in:
Wladimir J. van der Laan 2015-12-08 10:22:34 +01:00
parent 16ccb74ef2 fc0f52d780
commit 0800092fc2
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2 changed files with 28 additions and 0 deletions
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18
src/wallet/test/wallet_tests.cpp
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@ -328,4 +328,22 @@ BOOST_AUTO_TEST_CASE(coin_selection_tests)
empty_wallet();
}
BOOST_AUTO_TEST_CASE(pruning_in_ApproximateBestSet)
{
CoinSet setCoinsRet;
CAmount nValueRet;
LOCK(wallet.cs_wallet);
empty_wallet();
for (int i = 0; i < 12; i++)
{
add_coin(10*CENT);
}
add_coin(100*CENT);
add_coin(100*CENT);
BOOST_CHECK(wallet.SelectCoinsMinConf(221*CENT, 1, 6, vCoins, setCoinsRet, nValueRet));
BOOST_CHECK_EQUAL(nValueRet, 230*CENT);
}
BOOST_AUTO_TEST_SUITE_END()

10
src/wallet/wallet.cpp
View file

@ -1632,6 +1632,16 @@ static void ApproximateBestSubset(vector<pair<CAmount, pair<const CWalletTx*,uns
}
}
}
//Reduces the approximate best subset by removing any inputs that are smaller than the surplus of nTotal beyond nTargetValue.
for (unsigned int i = 0; i < vValue.size(); i++)
{
if (vfBest[i] && (nBest - vValue[i].first) >= nTargetValue )
{
vfBest[i] = false;
nBest -= vValue[i].first;
}
}
}
bool CWallet::SelectCoinsMinConf(const CAmount& nTargetValue, int nConfMine, int nConfTheirs, vector<COutput> vCoins,