maybe_parallel_iterator

Write your code once. Then toggle between sequential and parallel iterators with a feature flag!

let a: Vec<i32> = (0..100).collect();
a.into_maybe_parallel_iterator()
    .with_min_sequential(2)
    .map(|n| -n)
    .enumerate()
    .flat_map(|(e, n)| vec![e as i32, n, n + 1000].into_maybe_parallel_iterator())
    .for_each(|item| {
        println!("par: {:?}", item);
    })

Features

• Iterators
  • into_maybe_par_iter
  • maybe_par_iter
  • maybe_par_iter_mut
• Sorts
  • maybe_par_sort
  • maybe_par_sort_unstable
  • maybe_par_sort_by
  • maybe_par_sort_unstable_by
  • maybe_par_sort_by_key
  • maybe_par_sort_unstable_by_key

Use the rayon feature flag to enable rayon parallelism.

The default is sequential ("rayoff" mode).

Limitations

For now, only supports these iterator adapters:

• collect
• *enumerate
• filter_map
• find_any
• flat_map
• for_each
• map
• *with_min_sequential (no-op unless rayon feature enabled)

*Only available for IndexedParallelIterator's if rayon feature enabled.

License

Licensed under either of

• Apache License, Version 2.0 (LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0)
• MIT license (LICENSE-MIT or http://opensource.org/licenses/MIT)

at your option.

Contribution

Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.