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) -> BlockCount

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 for BlockCount

type Output = BlockCount

The resulting type after applying the + operator.

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

Performs the + operation.

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 AddAssign for BlockCount

fn add_assign(&mut self, rhs: BlockCount)

Performs the += operation.

impl AddAssign<BlockCount> for BlockIdx

fn add_assign(&mut self, rhs: BlockCount)

Performs the += operation.

impl Clone for BlockCount

fn clone(&self) -> BlockCount

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for BlockCount

impl Debug for BlockCount

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

Formats the value using the given formatter.

impl Eq for BlockCount

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

Equality operator ==.

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

Inequality operator !=.

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 StructuralPartialEq for BlockCount

impl Sub for BlockCount

type Output = BlockCount

The resulting type after applying the - operator.

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

Performs the - operation.

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 SubAssign for BlockCount

fn sub_assign(&mut self, rhs: BlockCount)

Performs the -= operation.

impl SubAssign<BlockCount> for BlockIdx

fn sub_assign(&mut self, rhs: BlockCount)

Performs the -= operation.