Russell Yanofsky
d8a99f65e5
Remove requirement that two wallet files can only be opened at the same time if they are contained in the same directory. This change mostly consists of updates to function signatures (updating functions to take fs::path arguments, instead of combinations of strings, fs::path, and CDBEnv / CWalletDBWrapper arguments).
61 lines
2.1 KiB
C++
61 lines
2.1 KiB
C++
// Copyright (c) 2012-2017 The Bitcoin Core developers
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// Distributed under the MIT software license, see the accompanying
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// file COPYING or http://www.opensource.org/licenses/mit-license.php.
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#include <bench/bench.h>
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#include <wallet/wallet.h>
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#include <set>
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static void addCoin(const CAmount& nValue, const CWallet& wallet, std::vector<COutput>& vCoins)
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{
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int nInput = 0;
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static int nextLockTime = 0;
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CMutableTransaction tx;
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tx.nLockTime = nextLockTime++; // so all transactions get different hashes
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tx.vout.resize(nInput + 1);
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tx.vout[nInput].nValue = nValue;
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CWalletTx* wtx = new CWalletTx(&wallet, MakeTransactionRef(std::move(tx)));
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int nAge = 6 * 24;
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COutput output(wtx, nInput, nAge, true /* spendable */, true /* solvable */, true /* safe */);
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vCoins.push_back(output);
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}
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// Simple benchmark for wallet coin selection. Note that it maybe be necessary
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// to build up more complicated scenarios in order to get meaningful
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// measurements of performance. From laanwj, "Wallet coin selection is probably
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// the hardest, as you need a wider selection of scenarios, just testing the
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// same one over and over isn't too useful. Generating random isn't useful
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// either for measurements."
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// (https://github.com/bitcoin/bitcoin/issues/7883#issuecomment-224807484)
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static void CoinSelection(benchmark::State& state)
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{
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const CWallet wallet("dummy", CWalletDBWrapper::CreateDummy());
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std::vector<COutput> vCoins;
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LOCK(wallet.cs_wallet);
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while (state.KeepRunning()) {
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// Add coins.
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for (int i = 0; i < 1000; i++)
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addCoin(1000 * COIN, wallet, vCoins);
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addCoin(3 * COIN, wallet, vCoins);
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std::set<CInputCoin> setCoinsRet;
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CAmount nValueRet;
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bool success = wallet.SelectCoinsMinConf(1003 * COIN, 1, 6, 0, vCoins, setCoinsRet, nValueRet);
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assert(success);
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assert(nValueRet == 1003 * COIN);
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assert(setCoinsRet.size() == 2);
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// Empty wallet.
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for (COutput& output : vCoins) {
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delete output.tx;
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}
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vCoins.clear();
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}
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}
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BENCHMARK(CoinSelection, 650);
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