Struct BlockCount

pub struct BlockCount(pub u32);

The a number of blocks (or sectors).

Add this to a BlockIdx to get an actual address on disk.

Tuple Fields

0: u32

Implementations

impl BlockCount

pub const fn from_bytes(byte_count: u32) -> BlockCount

How many blocks are required to hold this many bytes.

assert_eq!(BlockCount::from_bytes(511), BlockCount(1));
assert_eq!(BlockCount::from_bytes(512), BlockCount(1));
assert_eq!(BlockCount::from_bytes(513), BlockCount(2));
assert_eq!(BlockCount::from_bytes(1024), BlockCount(2));
assert_eq!(BlockCount::from_bytes(1025), BlockCount(3));

pub fn offset_bytes(self, offset: u32) -> Self

Take a number of blocks and increment by the integer number of blocks required to get to the block that holds the byte at the given offset.

Trait Implementations

impl Add<BlockCount> for BlockIdx

type Output = BlockIdx

The resulting type after applying the + operator.

fn add(self, rhs: BlockCount) -> BlockIdx

Performs the + operation.

impl Add for BlockCount

type Output = BlockCount

The resulting type after applying the + operator.

fn add(self, rhs: BlockCount) -> BlockCount

Performs the + operation.

impl AddAssign<BlockCount> for BlockIdx

fn add_assign(&mut self, rhs: BlockCount)

Performs the += operation.

impl AddAssign for BlockCount

fn add_assign(&mut self, rhs: BlockCount)

Performs the += operation.

impl Clone for BlockCount

fn clone(&self) -> BlockCount

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for BlockCount

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

Formats the value using the given formatter.

impl Ord for BlockCount

fn cmp(&self, other: &BlockCount) -> 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 BlockCount

fn eq(&self, other: &BlockCount) -> 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 BlockCount

fn partial_cmp(&self, other: &BlockCount) -> 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 Sub<BlockCount> for BlockIdx

type Output = BlockIdx

The resulting type after applying the - operator.

fn sub(self, rhs: BlockCount) -> BlockIdx

Performs the - operation.

impl Sub for BlockCount

type Output = BlockCount

The resulting type after applying the - operator.

fn sub(self, rhs: BlockCount) -> BlockCount

Performs the - operation.

impl SubAssign<BlockCount> for BlockIdx

fn sub_assign(&mut self, rhs: BlockCount)

Performs the -= operation.

impl SubAssign for BlockCount

fn sub_assign(&mut self, rhs: BlockCount)

Performs the -= operation.

impl Copy for BlockCount

impl Eq for BlockCount

impl StructuralPartialEq for BlockCount