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-BEGIN VERIFY SCRIPT- ./contrib/devtools/copyright_header.py update ./ -END VERIFY SCRIPT- Commits of previous years: - 2021:f47dda2c58- 2020:fa0074e2d8- 2019:aaaaad6ac9
45 lines
1.4 KiB
C++
45 lines
1.4 KiB
C++
// Copyright (c) 2009-2010 Satoshi Nakamoto
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// Copyright (c) 2009-2022 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 <consensus/amount.h>
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#include <policy/feerate.h>
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#include <tinyformat.h>
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#include <cmath>
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CFeeRate::CFeeRate(const CAmount& nFeePaid, uint32_t num_bytes)
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{
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const int64_t nSize{num_bytes};
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if (nSize > 0) {
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nSatoshisPerK = nFeePaid * 1000 / nSize;
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} else {
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nSatoshisPerK = 0;
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}
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}
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CAmount CFeeRate::GetFee(uint32_t num_bytes) const
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{
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const int64_t nSize{num_bytes};
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// Be explicit that we're converting from a double to int64_t (CAmount) here.
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// We've previously had issues with the silent double->int64_t conversion.
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CAmount nFee{static_cast<CAmount>(std::ceil(nSatoshisPerK * nSize / 1000.0))};
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if (nFee == 0 && nSize != 0) {
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if (nSatoshisPerK > 0) nFee = CAmount(1);
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if (nSatoshisPerK < 0) nFee = CAmount(-1);
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}
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return nFee;
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}
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std::string CFeeRate::ToString(const FeeEstimateMode& fee_estimate_mode) const
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{
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switch (fee_estimate_mode) {
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case FeeEstimateMode::SAT_VB: return strprintf("%d.%03d %s/vB", nSatoshisPerK / 1000, nSatoshisPerK % 1000, CURRENCY_ATOM);
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default: return strprintf("%d.%08d %s/kvB", nSatoshisPerK / COIN, nSatoshisPerK % COIN, CURRENCY_UNIT);
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}
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}
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