Struct BlockSize

pub struct BlockSize(/* private fields */);

Size of a block in bytes.

This type enforces some restrictions on the block size: it must be at least 512 bytes and fit within a u32.

Minimum size

The MasterBootRecord size is 512 bytes and must fit within a block, so the block size must be at least that large.

Implementations

impl BlockSize

pub const BS_512: Self

512-byte block size.

pub const BS_4096: Self

4096-byte block size.

pub const fn new(num_bytes: u32) -> Option<Self>

Create a BlockSize.

pub fn from_usize(num_bytes: usize) -> Option<Self>

Create a BlockSize.

pub const fn to_u32(self) -> u32

Get the size in bytes as a u32.

pub const fn to_u64(self) -> u64

Get the size in bytes as a u64.

pub fn to_usize(self) -> Option<usize>

Get the size in bytes as a usize.

pub fn is_multiple_of_block_size<T>(&self, value: T) -> bool

where T: TryInto<u64>,

Check if value is an even multiple of the block size.

Panics

Panics if value does not fit in a u64.

pub fn assert_valid_block_buffer(&self, buffer: &[u8])

Assert that the buffer size is an even multiple of the block size.

Panics

Panics if buffer.len() is not an even multiple of the block size.

Trait Implementations

impl Clone for BlockSize

fn clone(&self) -> BlockSize

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for BlockSize

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for BlockSize

fn default() -> Self

Returns the “default value” for a type.

impl Display for BlockSize

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Hash for BlockSize

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for BlockSize

fn cmp(&self, other: &BlockSize) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for BlockSize

fn eq(&self, other: &BlockSize) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for BlockSize

fn partial_cmp(&self, other: &BlockSize) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Copy for BlockSize

impl Eq for BlockSize

impl StructuralPartialEq for BlockSize