Enum HashType 

pub enum HashType {
    OneAtATime,
    Md5,
    Crc16,
    Crc32,
    Crc32a,
    Fnv1_64,
    Fnv1a_64,
    Fnv1_32,
    Fnv1a_32,
    Hsieh,
    Murmur,
    Jenkins,
    Murmur3,
    Murmur3X64_64,
}

All hashing algorithms supported by the engine.

Variant order mirrors the on-disk hash_type_t integer codec: configuration files and the dyn-hash-tool CLI rely on the integer ordering of these variants when they round-trip through other systems.

Examples

use dynomite::hashkit::HashType;
assert_eq!(HashType::all().len(), 14);
assert_eq!(HashType::Murmur3.as_str(), "murmur3");

Variants

OneAtATime

Jenkins one-at-a-time.

Md5

MD5; truncates the digest to its low 32 bits.

Crc16

CRC-16 (CCITT polynomial table).

Crc32

libmemcached-compatible CRC-32.

Crc32a

Standards-compliant CRC-32.

Fnv1_64

FNV-1 over 64-bit accumulator, truncated to 32 bits.

Fnv1a_64

FNV-1a operating in 32-bit space using the 64-bit prime.

Fnv1_32

FNV-1 in 32 bits.

Fnv1a_32

FNV-1a in 32 bits.

Hsieh

Paul Hsieh’s “SuperFastHash”.

Murmur

MurmurHash 2.

Jenkins

Bob Jenkins lookup3.

Murmur3

MurmurHash3 x86 128-bit.

Murmur3X64_64

MurmurHash3 truncated to 64 bits (used by the random-slicing distribution lookup).

Implementations

impl HashType

pub const fn as_str(self) -> &'static str

Lower-case algorithm name as it appears in YAML configurations.

Examples

use dynomite::hashkit::HashType;
assert_eq!(HashType::Murmur3.as_str(), "murmur3");

pub const fn all() -> &'static [HashType]

All variants, in declaration order.

Examples

use dynomite::hashkit::HashType;
assert!(HashType::all().contains(&HashType::Murmur3));

pub fn from_name(name: &str) -> Option<HashType>

Parse a YAML-style algorithm name. Unknown names yield None.

Examples

use dynomite::hashkit::HashType;
assert_eq!(HashType::from_name("murmur3"), Some(HashType::Murmur3));
assert_eq!(HashType::from_name("nope"), None);

Trait Implementations

impl Clone for HashType

fn clone(&self) -> HashType

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for HashType

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

Formats the value using the given formatter.

impl Hash for HashType

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 PartialEq for HashType

fn eq(&self, other: &HashType) -> 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 Copy for HashType

impl Eq for HashType

impl StructuralPartialEq for HashType