Struct work_steal_queue::rand::RngSeedGenerator

#[repr(C)]
pub struct RngSeedGenerator { /* private fields */ }

A deterministic generator for seeds (and other generators).

Given the same initial seed, the generator will output the same sequence of seeds.

Since the seed generator will be kept in a runtime handle, we need to wrap FastRand in a Mutex to make it thread safe. Different to the FastRand that we keep in a thread local store, the expectation is that seed generation will not need to happen very frequently, so the cost of the mutex should be minimal.

Implementations

impl RngSeedGenerator

pub fn new(seed: RngSeed) -> Self

Returns a new generator from the provided seed.

pub fn next_seed(&self) -> RngSeed

Returns the next seed in the sequence.

pub fn next_generator(&self) -> Self

Directly creates a generator using the next seed.

Trait Implementations

impl Debug for RngSeedGenerator

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

Formats the value using the given formatter.

impl Default for RngSeedGenerator

fn default() -> Self

Returns the “default value” for a type.