You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
69 lines
2.7 KiB
69 lines
2.7 KiB
// Copyright (c) 2009-2010 Satoshi Nakamoto |
|
// Copyright (c) 2009-2015 The Bitcoin Core 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; |
|
|
|
extern const std::string CURRENCY_UNIT; |
|
|
|
/** No amount larger than this (in satoshi) is valid. |
|
* |
|
* Note that this constant is *not* the total money supply, which in Bitcoin |
|
* currently happens to be less than 21,000,000 BTC for various reasons, but |
|
* rather a sanity check. As this sanity check is used by consensus-critical |
|
* validation code, the exact value of the MAX_MONEY constant is consensus |
|
* critical; in unusual circumstances like a(nother) overflow bug that allowed |
|
* for the creation of coins out of thin air modification could lead to a fork. |
|
* */ |
|
static const CAmount MAX_MONEY = 21000000 * COIN; |
|
inline bool MoneyRange(const CAmount& nValue) { return (nValue >= 0 && nValue <= MAX_MONEY); } |
|
|
|
/** Type-safe wrapper class 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; } |
|
/** |
|
* Return the fee in satoshis for the given size in bytes. |
|
*/ |
|
CAmount GetFee(size_t size) const; |
|
/** |
|
* Return the fee in satoshis for a size of 1000 bytes |
|
*/ |
|
CAmount GetFeePerK() const { return GetFee(1000); } |
|
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; } |
|
CFeeRate& operator+=(const CFeeRate& a) { nSatoshisPerK += a.nSatoshisPerK; return *this; } |
|
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
|
|
|