Class SharedIterator

src/unordered.rs:148–153

An iterator which can be safely shared between threads.

/// An iterator which can be safely shared between threads.
struct SharedIterator<I: Iterator> {
    // Since we're going to be sharing among multiple threads, each thread will
    // need to get a None of its own to know we've reached the end of the input.
    // For that, we use a Fused iterator here:
    iterator: Arc<Mutex<std::iter::Fuse<I>>>,
}

impl<I: Iterator> SharedIterator<I> {
    fn wrap(iterator: I) -> Self {