text: // Copyright (c) 2009-2010 Satoshi Nakamoto
  // Copyright (c) 2009-2017 The Bitcoin Core developers
  // Copyright (c) 2017-2018 The Toschain Core developers
  // Distributed under the MIT software license, see the accompanying
  // file COPYING or http://www.opensource.org/licenses/mit-license.php.
  
  #ifndef TOSCHAIN_WALLET_FEES_H
  #define TOSCHAIN_WALLET_FEES_H
  
  #include <amount.h>
  
  class CBlockPolicyEstimator;
  class CCoinControl;
  class CFeeRate;
  class CTxMemPool;
  struct FeeCalculation;
  
  /**
   * Return the minimum required fee taking into account the
   * floating relay fee and user set minimum transaction fee
   */
  CAmount GetRequiredFee(unsigned int nTxBytes);
  
  /**
   * Estimate the minimum fee considering user set parameters
   * and the required fee
   */
  CAmount GetMinimumFee(unsigned int nTxBytes, const CCoinControl& coin_control, const CTxMemPool& pool, const CBlockPolicyEstimator& estimator, FeeCalculation *feeCalc);
  
  /**
   * Return the minimum required feerate taking into account the
   * floating relay feerate and user set minimum transaction feerate
   */
  CFeeRate GetRequiredFeeRate();
  
  /**
   * Estimate the minimum fee rate considering user set parameters
   * and the required fee
   */
  CFeeRate GetMinimumFeeRate(const CCoinControl& coin_control, const CTxMemPool& pool, const CBlockPolicyEstimator& estimator, FeeCalculation *feeCalc);
  
  /**
   * Return the maximum feerate for discarding change.
   */
  CFeeRate GetDiscardRate(const CBlockPolicyEstimator& estimator);
  
  #endif // TOSCHAIN_WALLET_FEES_H
  