amount.cpp

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// Copyright (c) 2009-2010 Satoshi Nakamoto
// Copyright (c) 2009-2016 The Bitcoin Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
#include "amount.h"
 
#include "tinyformat.h"
 
const std::string CURRENCY_UNIT = "DOGE";
 
CFeeRate::CFeeRate(const CAmount& nFeePaid, size_t nBytes_)
{
    assert(nBytes_ <= uint64_t(std::numeric_limits<int64_t>::max()));
    int64_t nSize = int64_t(nBytes_);
 
    if (nSize > 0)
        nSatoshisPerK = nFeePaid * 1000 / nSize;
    else
        nSatoshisPerK = 0;
}
 
CAmount CFeeRate::GetFee(size_t nBytes_) const
{
    assert(nBytes_ <= uint64_t(std::numeric_limits<int64_t>::max()));
    int64_t nSize = int64_t(nBytes_);
 
    // Dogecoin: Round up to the nearest 1000 bytes so we get round tx fees
    if (nSize % 1000 > 0) {
        nSize = nSize + 1000 - (nSize % 1000);
    }
 
    CAmount nFee = nSatoshisPerK * nSize / 1000;
 
    if (nFee == 0 && nSize != 0) {
        if (nSatoshisPerK > 0)
            nFee = CAmount(1);
        if (nSatoshisPerK < 0)
            nFee = CAmount(-1);
    }
 
    return nFee;
}
 
std::string CFeeRate::ToString() const
{
    return strprintf("%d.%08d %s/kB", nSatoshisPerK / COIN, nSatoshisPerK % COIN, CURRENCY_UNIT);
}