55 lines
2.0 KiB
C++
55 lines
2.0 KiB
C++
// Copyright (c) 2009-2010 Satoshi Nakamoto
|
|
// Copyright (c) 2009-2014 The Bitcoin developers
|
|
// Distributed under the MIT software license, see the accompanying
|
|
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
|
|
|
|
#ifndef BITCOIN_AMOUNT_H
|
|
#define BITCOIN_AMOUNT_H
|
|
|
|
#include "serialize.h"
|
|
|
|
#include <stdlib.h>
|
|
#include <string>
|
|
|
|
typedef int64_t CAmount;
|
|
|
|
static const CAmount COIN = 100000000;
|
|
static const CAmount CENT = 1000000;
|
|
|
|
/** No amount larger than this (in satoshi) is valid */
|
|
static const CAmount MAX_MONEY = 21000000 * COIN;
|
|
inline bool MoneyRange(const CAmount& nValue) { return (nValue >= 0 && nValue <= MAX_MONEY); }
|
|
|
|
/** Type-safe wrapper class to for fee rates
|
|
* (how much to pay based on transaction size)
|
|
*/
|
|
class CFeeRate
|
|
{
|
|
private:
|
|
CAmount nSatoshisPerK; // unit is satoshis-per-1,000-bytes
|
|
public:
|
|
CFeeRate() : nSatoshisPerK(0) { }
|
|
explicit CFeeRate(const CAmount& _nSatoshisPerK): nSatoshisPerK(_nSatoshisPerK) { }
|
|
CFeeRate(const CAmount& nFeePaid, size_t nSize);
|
|
CFeeRate(const CFeeRate& other) { nSatoshisPerK = other.nSatoshisPerK; }
|
|
|
|
CAmount GetFee(size_t size) const; // unit returned is satoshis
|
|
CAmount GetFeePerK() const { return GetFee(1000); } // satoshis-per-1000-bytes
|
|
|
|
friend bool operator<(const CFeeRate& a, const CFeeRate& b) { return a.nSatoshisPerK < b.nSatoshisPerK; }
|
|
friend bool operator>(const CFeeRate& a, const CFeeRate& b) { return a.nSatoshisPerK > b.nSatoshisPerK; }
|
|
friend bool operator==(const CFeeRate& a, const CFeeRate& b) { return a.nSatoshisPerK == b.nSatoshisPerK; }
|
|
friend bool operator<=(const CFeeRate& a, const CFeeRate& b) { return a.nSatoshisPerK <= b.nSatoshisPerK; }
|
|
friend bool operator>=(const CFeeRate& a, const CFeeRate& b) { return a.nSatoshisPerK >= b.nSatoshisPerK; }
|
|
std::string ToString() const;
|
|
|
|
ADD_SERIALIZE_METHODS;
|
|
|
|
template <typename Stream, typename Operation>
|
|
inline void SerializationOp(Stream& s, Operation ser_action, int nType, int nVersion) {
|
|
READWRITE(nSatoshisPerK);
|
|
}
|
|
};
|
|
|
|
#endif // BITCOIN_AMOUNT_H
|