Trait UefiVariable

pub trait UefiVariable: Sized {
    const SIZE: usize;

    // Required methods
    fn to_bytes(&self, out: &mut [u8]) -> usize;
    fn from_bytes(bytes: &[u8]) -> Self;
    fn default() -> Self;
}

A value that can be stored in a UEFI variable.

This is essentially a type that can be converted into and from a vector of bytes. What byte ordering these bytes are in does not particularly matter, or how these bytes are encoded or decoded, as long as the method from UefiVariable is used instead of whatever type you have. It also has to be a set size.

Required Associated Constants

const SIZE: usize

The size of the type in bytes.

Required Methods

fn to_bytes(&self, out: &mut [u8]) -> usize

Convert Self to a buffer of bytes, then return the bytes written.

fn from_bytes(bytes: &[u8]) -> Self

Convert a vector of bytes to Self.

fn default() -> Self

Return 0, or an equivalent value.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementations on Foreign Types

impl UefiVariable for bool

const SIZE: usize = 1usize

fn to_bytes(&self, out: &mut [u8]) -> usize

fn from_bytes(bytes: &[u8]) -> Self

fn default() -> Self

impl UefiVariable for u8

const SIZE: usize = 1usize

fn to_bytes(&self, out: &mut [u8]) -> usize

fn from_bytes(bytes: &[u8]) -> Self

fn default() -> Self

impl UefiVariable for u16

const SIZE: usize = 2usize

fn to_bytes(&self, out: &mut [u8]) -> usize

fn from_bytes(bytes: &[u8]) -> Self

fn default() -> Self

impl UefiVariable for u32

const SIZE: usize = 4usize

fn to_bytes(&self, out: &mut [u8]) -> usize

fn from_bytes(bytes: &[u8]) -> Self

fn default() -> Self

impl UefiVariable for u64

const SIZE: usize = 8usize

fn to_bytes(&self, out: &mut [u8]) -> usize

fn from_bytes(bytes: &[u8]) -> Self

fn default() -> Self

impl UefiVariable for usize

const SIZE: Self = 8usize

fn to_bytes(&self, out: &mut [u8]) -> usize

fn from_bytes(bytes: &[u8]) -> Self

fn default() -> Self

Implementors