Struct BlockHash 

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

A block’s content address: the 32-byte SHA-256 of its chained identity.

Implementations

impl BlockHash

pub fn from_bytes(bytes: [u8; 32]) -> Self

pub fn as_bytes(&self) -> &[u8; 32]

pub fn to_hex(&self) -> String

Lowercase hex, 64 characters. This is the on-disk file name the SSD tier will use.

pub fn shard_prefix(&self, n: usize) -> String

The first n hex characters, for sharding blocks into subdirectories so one directory never holds every block on the machine. n is clamped to the digest length.

Trait Implementations

impl Clone for BlockHash

fn clone(&self) -> BlockHash

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for BlockHash

impl Debug for BlockHash

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

Formats the value using the given formatter.

impl Display for BlockHash

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

Formats the value using the given formatter.

impl Eq for BlockHash

impl Hash for BlockHash

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 BlockHash

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

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

Equality operator ==.

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

Inequality operator !=.

impl PartialOrd for BlockHash

fn partial_cmp(&self, other: &BlockHash) -> 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 BlockHash