Skip to main content

ThreadPool

Struct ThreadPool 

Source
pub struct ThreadPool { /* private fields */ }
Available on (crate features rayon or default-thread-pool) and crate feature default-thread-pool only.
Expand description

A thread pool that can execute parallel pipelines.

This type doesn’t expose any public methods other than num_threads(). You can interact with it via the ThreadPoolBuilder::build() function to create a thread pool, and the with_thread_pool() method to attach a thread pool to a parallel iterator.

Implementations§

Source§

impl ThreadPool

Source

pub fn num_threads(&self) -> NonZeroUsize

Returns the number of worker threads that have been spawned in this thread pool.

Trait Implementations§

Source§

impl GenericThreadPool for &mut ThreadPool

Source§

fn upper_bounded_pipeline<Output: Send, Accum>( self, input_len: usize, init: impl Fn() -> Accum + Sync, process_item: impl Fn(Accum, usize) -> ControlFlow<Accum, Accum> + Sync, finalize: impl Fn(Accum) -> Output + Sync, reduce: impl Fn(Output, Output) -> Output, cleanup: &(impl SourceCleanup + Sync), ) -> Output

Processes an input of the given length in parallel and returns the aggregated output. Read more
Source§

fn iter_pipeline<Output, Accum: Send>( self, input_len: usize, accum: impl Accumulator<usize, Accum> + Sync, reduce: impl ExactSizeAccumulator<Accum, Output>, cleanup: &(impl SourceCleanup + Sync), ) -> Output

Processes an input of the given length in parallel and returns the aggregated output. Read more

Auto Trait Implementations§

Blanket Implementations§

Source§

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

Source§

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
Source§

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

Source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
Source§

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

Source§

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

Mutably borrows from an owned value. Read more
Source§

impl<T> From<T> for T

Source§

fn from(t: T) -> T

Returns the argument unchanged.

Source§

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

Source§

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

Source§

impl<T> Pointable for T

Source§

const ALIGN: usize

The alignment of pointer.
Source§

type Init = T

The type for initializers.
Source§

unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
Source§

unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
Source§

unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
Source§

unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
Source§

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

Source§

type Error = Infallible

The type returned in the event of a conversion error.
Source§

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

Performs the conversion.
Source§

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

Source§

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

The type returned in the event of a conversion error.
Source§

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

Performs the conversion.