1 // Copyright (c) 2009-2010 Satoshi Nakamoto
2 // Copyright (c) 2009-2018 The Bitcoin Core developers
3 // Distributed under the MIT software license, see the accompanying
4 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
5 
6 #ifndef BITCOIN_WALLET_FEES_H
7 #define BITCOIN_WALLET_FEES_H
8 
9 #include <amount.h>
10 
11 class CCoinControl;
12 class CFeeRate;
13 class CWallet;
14 struct FeeCalculation;
15 
16 /**
17  * Return the minimum required absolute fee for this size
18  * based on the required fee rate
19  */
20 CAmount GetRequiredFee(const CWallet& wallet, unsigned int nTxBytes);
21 
22 /**
23  * Estimate the minimum fee considering user set parameters
24  * and the required fee
25  */
26 CAmount GetMinimumFee(const CWallet& wallet, unsigned int nTxBytes, const CCoinControl& coin_control, FeeCalculation* feeCalc);
27 
28 /**
29  * Return the minimum required feerate taking into account the
30  * minimum relay feerate and user set minimum transaction feerate
31  */
32 CFeeRate GetRequiredFeeRate(const CWallet& wallet);
33 
34 /**
35  * Estimate the minimum fee rate considering user set parameters
36  * and the required fee
37  */
38 CFeeRate GetMinimumFeeRate(const CWallet& wallet, const CCoinControl& coin_control, FeeCalculation* feeCalc);
39 
40 /**
41  * Return the maximum feerate for discarding change.
42  */
43 CFeeRate GetDiscardRate(const CWallet& wallet);
44 
45 #endif // BITCOIN_WALLET_FEES_H
46