mirror of
https://github.com/XRPLF/rippled.git
synced 2026-06-04 17:27:00 +00:00
51 lines
1.4 KiB
C++
51 lines
1.4 KiB
C++
#ifndef XRPL_PROTOCOL_FEES_H_INCLUDED
|
|
#define XRPL_PROTOCOL_FEES_H_INCLUDED
|
|
|
|
#include <xrpl/protocol/XRPAmount.h>
|
|
|
|
namespace xrpl {
|
|
|
|
/** Reflects the fee settings for a particular ledger.
|
|
|
|
The fees are always the same for any transactions applied
|
|
to a ledger. Changes to fees occur in between ledgers.
|
|
*/
|
|
struct Fees
|
|
{
|
|
XRPAmount base{0}; // Reference tx cost (drops)
|
|
XRPAmount reserve{0}; // Reserve base (drops)
|
|
XRPAmount increment{0}; // Reserve increment (drops)
|
|
|
|
explicit Fees() = default;
|
|
Fees(Fees const&) = default;
|
|
Fees&
|
|
operator=(Fees const&) = default;
|
|
|
|
/** Returns the account reserve given the owner count, in drops.
|
|
|
|
The reserve is calculated as the reserve base plus
|
|
the reserve increment times the number of increments.
|
|
*/
|
|
XRPAmount
|
|
accountReserve(
|
|
std::size_t ownerCount,
|
|
std::size_t sponsoredOwnerCount = 0,
|
|
std::size_t sponsoringOwnerCount = 0,
|
|
bool isAccountSponsored = false,
|
|
std::size_t sponsoringAccountCount = 0) const
|
|
{
|
|
auto const accountReserveUnits =
|
|
(isAccountSponsored ? 0 : 1) + sponsoringAccountCount;
|
|
|
|
auto const ownerReserveUnits =
|
|
(ownerCount - sponsoredOwnerCount) + sponsoringOwnerCount;
|
|
|
|
return (reserve * accountReserveUnits) +
|
|
(increment * ownerReserveUnits);
|
|
}
|
|
};
|
|
|
|
} // namespace xrpl
|
|
|
|
#endif
|