6efc333ffe
CFeeRate and CTxMemPoolEntry have explicitly defined copy ctors which has
the same functionality as the implicit default copy ctors which would
have been generated otherwise.
Besides being redundant, it violates the rule of three
(see https://en.wikipedia.org/wiki/Rule_of_three_(C%2B%2B_programming) ).
(Of course, the rule of three doesn't -really- cause a resource
management issue here, but the reason for that is exactly that there is
no need for an explicit copy ctor in the first place since no resources
are being managed).
CFeeRate has an explicitly defined copy ctor which has the same
functionality as the implicit default copy ctor which would have been
generated otherwise.
-----------------------------
Cherry-picked from: b426e2467
Note:
Solved conflict where upstream moved CFeeRate into ./policy/
whereas we still have it in amount.h/cpp on 1.14.
76 lines
3 KiB
C++
76 lines
3 KiB
C++
// Copyright (c) 2009-2010 Satoshi Nakamoto
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// Copyright (c) 2009-2016 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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#ifndef BITCOIN_AMOUNT_H
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#define BITCOIN_AMOUNT_H
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#include "serialize.h"
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#include <stdlib.h>
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#include <string>
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/** Amount in satoshis (Can be negative) */
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typedef int64_t CAmount;
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static const CAmount COIN = 100000000;
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static const CAmount CENT = 1000000;
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extern const std::string CURRENCY_UNIT;
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/** No amount larger than this (in satoshi) is valid.
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*
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* Note that this constant is *not* the total money supply, which in Bitcoin
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* currently happens to be less than 21,000,000 BTC for various reasons, but
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* rather a sanity check. As this sanity check is used by consensus-critical
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* validation code, the exact value of the MAX_MONEY constant is consensus
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* critical; in unusual circumstances like a(nother) overflow bug that allowed
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* for the creation of coins out of thin air modification could lead to a fork.
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* */
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static const CAmount MAX_MONEY = 10000000000 * COIN; // Dogecoin: maximum of 100B coins (given some randomness), max transaction 10,000,000,000
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inline bool MoneyRange(const CAmount& nValue) { return (nValue >= 0 && nValue <= MAX_MONEY); }
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/**
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* Fee rate in satoshis per kilobyte: CAmount / kB
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*/
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class CFeeRate
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{
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private:
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CAmount nSatoshisPerK; // unit is satoshis-per-1,000-bytes
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public:
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/** Fee rate of 0 satoshis per kB */
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CFeeRate() : nSatoshisPerK(0) { }
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explicit CFeeRate(const CAmount& _nSatoshisPerK): nSatoshisPerK(_nSatoshisPerK) { }
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/** Constructor for a fee rate in satoshis per kB. The size in bytes must not exceed (2^63 - 1)*/
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CFeeRate(const CAmount& nFeePaid, size_t nBytes);
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/**
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* Return the wallet fee in koinus for the given size in bytes.
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*/
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CAmount GetFee(size_t nBytes) const;
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/**
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* Return the relay fee in koinus for the given size in bytes.
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*/
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CAmount GetRelayFee(size_t nBytes) const;
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/**
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* Return the fee in satoshis for a size of 1000 bytes
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*/
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CAmount GetFeePerK() const { return GetFee(1000); }
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friend bool operator<(const CFeeRate& a, const CFeeRate& b) { return a.nSatoshisPerK < b.nSatoshisPerK; }
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friend bool operator>(const CFeeRate& a, const CFeeRate& b) { return a.nSatoshisPerK > b.nSatoshisPerK; }
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friend bool operator==(const CFeeRate& a, const CFeeRate& b) { return a.nSatoshisPerK == b.nSatoshisPerK; }
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friend bool operator<=(const CFeeRate& a, const CFeeRate& b) { return a.nSatoshisPerK <= b.nSatoshisPerK; }
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friend bool operator>=(const CFeeRate& a, const CFeeRate& b) { return a.nSatoshisPerK >= b.nSatoshisPerK; }
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CFeeRate& operator+=(const CFeeRate& a) { nSatoshisPerK += a.nSatoshisPerK; return *this; }
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std::string ToString() const;
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ADD_SERIALIZE_METHODS;
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template <typename Stream, typename Operation>
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inline void SerializationOp(Stream& s, Operation ser_action) {
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READWRITE(nSatoshisPerK);
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}
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};
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#endif // BITCOIN_AMOUNT_H
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