Struct crossbeam_queue::SegQueue[][src]

pub struct SegQueue<T> { /* fields omitted */ }
Expand description

An unbounded multi-producer multi-consumer queue.

This queue is implemented as a linked list of segments, where each segment is a small buffer that can hold a handful of elements. There is no limit to how many elements can be in the queue at a time. However, since segments need to be dynamically allocated as elements get pushed, this queue is somewhat slower than ArrayQueue.

Examples

use crossbeam_queue::SegQueue;

let q = SegQueue::new();

q.push('a');
q.push('b');

assert_eq!(q.pop(), Some('a'));
assert_eq!(q.pop(), Some('b'));
assert!(q.pop().is_none());

Implementations

impl<T> SegQueue<T>[src]

pub const fn new() -> SegQueue<T>[src]

Creates a new unbounded queue.

Examples

use crossbeam_queue::SegQueue;

let q = SegQueue::<i32>::new();

pub fn push(&self, value: T)[src]

Pushes an element into the queue.

Examples

use crossbeam_queue::SegQueue;

let q = SegQueue::new();

q.push(10);
q.push(20);

pub fn pop(&self) -> Option<T>[src]

Pops an element from the queue.

If the queue is empty, None is returned.

Examples

use crossbeam_queue::SegQueue;

let q = SegQueue::new();

q.push(10);
assert_eq!(q.pop(), Some(10));
assert!(q.pop().is_none());

pub fn is_empty(&self) -> bool[src]

Returns true if the queue is empty.

Examples

use crossbeam_queue::SegQueue;

let q = SegQueue::new();

assert!(q.is_empty());
q.push(1);
assert!(!q.is_empty());

pub fn len(&self) -> usize[src]

Returns the number of elements in the queue.

Examples

use crossbeam_queue::SegQueue;

let q = SegQueue::new();
assert_eq!(q.len(), 0);

q.push(10);
assert_eq!(q.len(), 1);

q.push(20);
assert_eq!(q.len(), 2);

Trait Implementations

impl<T> Debug for SegQueue<T>[src]

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

Formats the value using the given formatter. Read more

impl<T> Default for SegQueue<T>[src]

fn default() -> SegQueue<T>[src]

Returns the “default value” for a type. Read more

impl<T> Drop for SegQueue<T>[src]

fn drop(&mut self)[src]

Executes the destructor for this type. Read more

impl<T: Send> Send for SegQueue<T>[src]

impl<T: Send> Sync for SegQueue<T>[src]

Auto Trait Implementations

impl<T> RefUnwindSafe for SegQueue<T> where
    T: RefUnwindSafe

impl<T> Unpin for SegQueue<T> where
    T: Unpin

impl<T> !UnwindSafe for SegQueue<T>

Blanket Implementations

impl<T> Any for T where
    T: 'static + ?Sized
[src]

pub fn type_id(&self) -> TypeId[src]

Gets the TypeId of self. Read more

impl<T> Borrow<T> for T where
    T: ?Sized
[src]

pub fn borrow(&self) -> &T[src]

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T where
    T: ?Sized
[src]

pub fn borrow_mut(&mut self) -> &mut T[src]

Mutably borrows from an owned value. Read more

impl<T> From<T> for T[src]

pub fn from(t: T) -> T[src]

Performs the conversion.

impl<T, U> Into<U> for T where
    U: From<T>, 
[src]

pub fn into(self) -> U[src]

Performs the conversion.

impl<T, U> TryFrom<U> for T where
    U: Into<T>, 
[src]

type Error = Infallible

The type returned in the event of a conversion error.

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

Performs the conversion.

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, 
[src]

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

The type returned in the event of a conversion error.

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

Performs the conversion.