Struct rand::rngs::ThreadRng

source · [−]

pub struct ThreadRng { /* private fields */ }

Expand description

A reference to the thread-local generator

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An instance can be obtained via thread_rng or via ThreadRng::default(). +This handle is safe to use everywhere (including thread-local destructors), +though it is recommended not to use inside a fork handler. +The handle cannot be passed between threads (is not Send or Sync).

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ThreadRng uses the same PRNG as StdRng for security and performance +and is automatically seeded from OsRng.

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Unlike StdRng, ThreadRng uses the ReseedingRng wrapper to reseed +the PRNG from fresh entropy every 64 kiB of random data as well as after a +fork on Unix (though not quite immediately; see documentation of +ReseedingRng). +Note that the reseeding is done as an extra precaution against side-channel +attacks and mis-use (e.g. if somehow weak entropy were supplied initially). +The PRNG algorithms used are assumed to be secure.

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Struct rand::rngs::ThreadRng

Trait Implementations

impl Clone for ThreadRng

fn clone(&self) -> ThreadRng

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

impl Debug for ThreadRng

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

impl Default for ThreadRng

fn default() -> ThreadRng

impl RngCore for ThreadRng

fn next_u32(&mut self) -> u32

fn next_u64(&mut self) -> u64

fn fill_bytes(&mut self, dest: &mut [u8])

fn try_fill_bytes(&mut self, dest: &mut [u8]) -> Result<(), Error>

impl CryptoRng for ThreadRng

Auto Trait Implementations

impl !RefUnwindSafe for ThreadRng

impl !Send for ThreadRng

impl !Sync for ThreadRng

impl Unpin for ThreadRng

impl !UnwindSafe for ThreadRng

Blanket Implementations

impl<T> Any for Twhere T: 'static + ?Sized,

fn type_id(&self) -> TypeId

impl<T> Borrow<T> for Twhere T: ?Sized,

fn borrow(&self) -> &T

impl<T> BorrowMut<T> for Twhere T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

impl<T> CryptoRngCore for Twhere T: CryptoRng + RngCore,

fn as_rngcore(&mut self) -> &mut dyn RngCoreⓘNotable traits for dyn RngCore + 'staticimpl Read for dyn RngCore + 'static

impl<T> From<T> for T

fn from(t: T) -> T

impl<T, U> Into<U> for Twhere U: From<T>,

fn into(self) -> U

impl<T> ToOwned for Twhere T: Clone,

type Owned = T

fn to_owned(&self) -> T

fn clone_into(&self, target: &mut T)

impl<T, U> TryFrom<U> for Twhere U: Into<T>,

type Error = Infallible

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

impl<V, T> VZip<V> for Twhere V: MultiLane<T>,

fn vzip(self) -> V

impl<T> Any for Twhere
T: 'static + ?Sized,

impl<T> Borrow<T> for Twhere
T: ?Sized,

impl<T> BorrowMut<T> for Twhere
T: ?Sized,

impl<T> CryptoRngCore for Twhere
T: CryptoRng + RngCore,

fn as_rngcore(&mut self) -> &mut dyn RngCoreⓘNotable traits for dyn RngCore + 'static`impl Read for dyn RngCore + 'static`

impl<T, U> Into<U> for Twhere
U: From<T>,

impl<T> ToOwned for Twhere
T: Clone,

impl<T, U> TryFrom<U> for Twhere
U: Into<T>,

impl<T, U> TryInto<U> for Twhere
U: TryFrom<T>,

impl<V, T> VZip<V> for Twhere
V: MultiLane<T>,