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rippled/include/xrpl/ledger/helpers/OracleHelpers.h
2026-07-09 13:31:59 -04:00

32 lines
867 B
C++

#pragma once
#include <xrpl/protocol/SField.h>
#include <xrpl/protocol/STArray.h> // IWYU pragma: keep
#include <xrpl/protocol/STLedgerEntry.h>
#include <cstddef>
#include <cstdint>
namespace xrpl {
constexpr std::uint32_t kMinOracleReserveCount = 1;
constexpr std::uint32_t kMaxOracleReserveCount = 2;
constexpr std::size_t kOracleReserveCountThreshold = 5;
template <typename T>
requires requires(T const& t) { t.size(); }
inline std::uint32_t
calculateOracleReserve(T const& priceDataSeries)
{
return priceDataSeries.size() > kOracleReserveCountThreshold ? kMaxOracleReserveCount
: kMinOracleReserveCount;
}
inline std::uint32_t
calculateOracleReserve(SLE::const_ref oracleSle)
{
return calculateOracleReserve(oracleSle->getFieldArray(sfPriceDataSeries));
}
} // namespace xrpl