pub struct Stealer<T> { /* fields omitted */ }
A stealer handle of a worker queue.
Stealers can be shared among threads.
Task schedulers typically have a single worker queue per worker thread.
use crossbeam_deque::{Steal, Worker};
let w = Worker::new_lifo();
w.push(1);
w.push(2);
let s = w.stealer();
assert_eq!(s.steal(), Steal::Success(1));
assert_eq!(s.steal(), Steal::Success(2));
assert_eq!(s.steal(), Steal::Empty);
Returns true
if the queue is empty.
use crossbeam_deque::Worker;
let w = Worker::new_lifo();
let s = w.stealer();
assert!(s.is_empty());
w.push(1);
assert!(!s.is_empty());
Steals a task from the queue.
use crossbeam_deque::{Steal, Worker};
let w = Worker::new_lifo();
w.push(1);
w.push(2);
let s = w.stealer();
assert_eq!(s.steal(), Steal::Success(1));
assert_eq!(s.steal(), Steal::Success(2));
Steals a batch of tasks and pushes them into another worker.
How many tasks exactly will be stolen is not specified. That said, this method will try to
steal around half of the tasks in the queue, but also not more than some constant limit.
use crossbeam_deque::Worker;
let w1 = Worker::new_fifo();
w1.push(1);
w1.push(2);
w1.push(3);
w1.push(4);
let s = w1.stealer();
let w2 = Worker::new_fifo();
s.steal_batch(&w2);
assert_eq!(w2.pop(), Some(1));
assert_eq!(w2.pop(), Some(2));
Steals a batch of tasks, pushes them into another worker, and pops a task from that worker.
How many tasks exactly will be stolen is not specified. That said, this method will try to
steal around half of the tasks in the queue, but also not more than some constant limit.
use crossbeam_deque::{Steal, Worker};
let w1 = Worker::new_fifo();
w1.push(1);
w1.push(2);
w1.push(3);
w1.push(4);
let s = w1.stealer();
let w2 = Worker::new_fifo();
assert_eq!(s.steal_batch_and_pop(&w2), Steal::Success(1));
assert_eq!(w2.pop(), Some(2));
Performs copy-assignment from source
. Read more
Formats the value using the given formatter. Read more
Creates owned data from borrowed data, usually by cloning. Read more
🔬 This is a nightly-only experimental API. (toowned_clone_into
)
recently added
Uses borrowed data to replace owned data, usually by cloning. Read more
🔬 This is a nightly-only experimental API. (try_from
)
The type returned in the event of a conversion error.
🔬 This is a nightly-only experimental API. (try_from
)
Immutably borrows from an owned value. Read more
Mutably borrows from an owned value. Read more
🔬 This is a nightly-only experimental API. (try_from
)
The type returned in the event of a conversion error.
🔬 This is a nightly-only experimental API. (try_from
)
🔬 This is a nightly-only experimental API. (get_type_id
)
this method will likely be replaced by an associated static