fdo2_uart_interface.hpp

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#pragma once
 
#include <cstddef>
#include <cstdint>
#include <type_traits>
 
namespace fdo2 {
 
template <typename Derived>
class UartInterface {
public:
    void write(const uint8_t* data, std::size_t length) noexcept {
        static_cast<Derived*>(this)->write(data, length);
    }
 
    std::size_t read(uint8_t* out, std::size_t max, uint32_t timeout_ms) noexcept {
        return static_cast<Derived*>(this)->read(out, max, timeout_ms);
    }
 
    void flush_rx() noexcept { static_cast<Derived*>(this)->flush_rx(); }
 
    void delay_ms(uint32_t ms) noexcept {
        if constexpr (HasDelay<Derived>::value) {
            static_cast<Derived*>(this)->delay_ms_impl(ms);
        } else {
            (void)ms;
        }
    }
 
private:
    template <typename, typename = void>
    struct HasDelay : std::false_type {};
    template <typename T>
    struct HasDelay<T, std::void_t<decltype(std::declval<T>().delay_ms_impl(0U))>>
        : std::true_type {};
};
 
}  // namespace fdo2