# [−][src]Struct crossbeam::deque::Worker

    pub struct Worker<T> { /* fields omitted */ }

A worker queue.

This is a FIFO or LIFO queue that is owned by a single thread, but other threads may steal tasks from it. Task schedulers typically create a single worker queue per thread.

# Examples

A FIFO worker:

    use crossbeam_deque::{Steal, Worker};

    let w = Worker::new_fifo();
    let s = w.stealer();

    w.push(1);
    w.push(2);
    w.push(3);

    assert_eq!(s.steal(), Steal::Success(1));
    assert_eq!(w.pop(), Some(2));
    assert_eq!(w.pop(), Some(3));

A LIFO worker:

    use crossbeam_deque::{Steal, Worker};

    let w = Worker::new_lifo();
    let s = w.stealer();

    w.push(1);
    w.push(2);
    w.push(3);

    assert_eq!(s.steal(), Steal::Success(1));
    assert_eq!(w.pop(), Some(3));
    assert_eq!(w.pop(), Some(2));

## Methods

### `impl<T> Worker<T>`[src]

#### `pub fn new_fifo() -> Worker<T>`[src]

Creates a FIFO worker queue.

Tasks are pushed and popped from opposite ends.

# Examples

    use crossbeam_deque::Worker;

    let w = Worker::<i32>::new_fifo();

#### `pub fn new_lifo() -> Worker<T>`[src]

Creates a LIFO worker queue.

Tasks are pushed and popped from the same end.

# Examples

    use crossbeam_deque::Worker;

    let w = Worker::<i32>::new_lifo();

#### `pub fn stealer(&self) -> Stealer<T>`[src]

Creates a stealer for this queue.

The returned stealer can be shared among threads and cloned.

# Examples

    use crossbeam_deque::Worker;

    let w = Worker::<i32>::new_lifo();
    let s = w.stealer();

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

Returns `true` if the queue is empty.

    use crossbeam_deque::Worker;

    let w = Worker::new_lifo();

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

#### `pub fn push(&self, task: T)`[src]

Pushes a task into the queue.

# Examples

    use crossbeam_deque::Worker;

    let w = Worker::new_lifo();
    w.push(1);
    w.push(2);

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

Pops a task from the queue.

# Examples

    use crossbeam_deque::Worker;

    let w = Worker::new_fifo();
    w.push(1);
    w.push(2);

    assert_eq!(w.pop(), Some(1));
    assert_eq!(w.pop(), Some(2));
    assert_eq!(w.pop(), None);

## Trait Implementations

### `impl<T> Debug for Worker<T>`[src]

#### `fn fmt(&self, f: &mut Formatter) -> Result<(), Error>`[src]

Formats the value using the given formatter. Read more

### `impl<T> Send for Worker<T> where
T: Send,` [src]

## Auto Trait Implementations

### `impl<T> Unpin for Worker<T>`

### `impl<T> !Sync for Worker<T>`

### `impl<T> UnwindSafe for Worker<T> where
T: RefUnwindSafe,`

### `impl<T> !RefUnwindSafe for Worker<T>`

## Blanket Implementations

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

#### `fn into(self) -> U`[src]

Performs the conversion.

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

#### `fn from(t: T) -> T`[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.

#### `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.

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

Performs the conversion.

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

####
ⓘImportant traits for &'_ mut W

### Important traits for &'_ mut W

`impl<'_, W> Write for &'_ mut W where
W: Write + ?Sized, impl<'_, R> Read for &'_ mut R where
R: Read + ?Sized, impl<'_, I> Iterator for &'_ mut I where
I: Iterator + ?Sized, type Item = <I as Iterator>::Item;impl<'_, F> Future for &'_ mut F where
F: Unpin + Future + ?Sized, type Output = <F as Future>::Output;`
`fn borrow_mut(&mut self) -> &mut T`[src]

Mutably borrows from an owned value. Read more

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

####
ⓘImportant traits for &'_ mut W

### Important traits for &'_ mut W

`impl<'_, W> Write for &'_ mut W where
W: Write + ?Sized, impl<'_, R> Read for &'_ mut R where
R: Read + ?Sized, impl<'_, I> Iterator for &'_ mut I where
I: Iterator + ?Sized, type Item = <I as Iterator>::Item;impl<'_, F> Future for &'_ mut F where
F: Unpin + Future + ?Sized, type Output = <F as Future>::Output;`
`fn borrow(&self) -> &T`[src]

Immutably borrows from an owned value. Read more

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

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

Gets the `TypeId` of `self`. Read more

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