Struct IndexPos 

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

A position index representing an 8-byte aligned offset in a block device.

IndexPos is a type-safe wrapper around a u64 that represents positions in units of 8 bytes. This is used throughout the library to ensure proper alignment and avoid confusion between byte offsets and index positions.

Examples

use test_bd::IndexPos;

// Create a position at index 100 (which is byte offset 800)
let pos = IndexPos::new(100);
assert_eq!(pos.as_u64(), 100);
assert_eq!(pos.as_abs_byte_offset(), 800);

Implementations

impl IndexPos

pub const fn new(idx: u64) -> Self

Creates a new IndexPos from an index value.

Arguments

• idx - The index value (in units of 8 bytes)

Examples

use test_bd::IndexPos;

let pos = IndexPos::new(42);
assert_eq!(pos.as_u64(), 42);

pub const fn as_u64(self) -> u64

Returns the raw index value as a u64.

Examples

use test_bd::IndexPos;

let pos = IndexPos::new(100);
assert_eq!(pos.as_u64(), 100);

pub const fn as_abs_byte_offset(self) -> u64

Converts the index position to an absolute byte offset.

Since each index represents 8 bytes, this returns index * 8. However, this could change, so use this method.

Examples

use test_bd::IndexPos;

let pos = IndexPos::new(100);
assert_eq!(pos.as_abs_byte_offset(), 800);

Trait Implementations

impl AddAssign for IndexPos

fn add_assign(&mut self, other: Self)

Performs the += operation.

impl Clone for IndexPos

fn clone(&self) -> IndexPos

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for IndexPos

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for IndexPos

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for IndexPos

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

Formats the value using the given formatter.

impl Hash for IndexPos

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 IndexPos

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

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

fn partial_cmp(&self, other: &IndexPos) -> 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 Serialize for IndexPos

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Sub for IndexPos

type Output = u64

The resulting type after applying the - operator.

fn sub(self, rhs: IndexPos) -> Self::Output

Performs the - operation.

impl Copy for IndexPos

impl Eq for IndexPos

impl StructuralPartialEq for IndexPos