Struct Wrapper

pub struct Wrapper<I>
where
    I: Clone + Debug + Eq + Hash + PartialEq + Send + Sync + 'static,
{ /* private fields */ }

Wrapper for an item

This is used to pass items through parallel iterators. When the wrapper is dropped, we decrement the processing counter and notify the dispatcher thread through the item_done_tx channel.

Implementations

impl<I> Wrapper<I>

where I: Clone + Debug + Eq + Hash + PartialEq + Send + Sync + 'static,

pub fn new(inner: I, counter: Arc<AtomicUsize>, item_done_tx: Sender<I>) -> Self

Create a new Wrapper item

This needs a reference to the processing counter to keep count of the number of items currently processed (used to check for circular dependencies) and the item done channel to notify the dispatcher thread.

Upon creating of a Wrapper, we also increment the processing counter.

Trait Implementations

impl<I> Clone for Wrapper<I>

where I: Clone + Debug + Eq + Hash + PartialEq + Send + Sync + 'static + Clone,

fn clone(&self) -> Wrapper<I>

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<I> Deref for Wrapper<I>

where I: Clone + Debug + Eq + Hash + PartialEq + Send + Sync + 'static,

Dereference implementation to access the inner item

This allow accessing the item using (*wrapper).

type Target = I

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.

impl<I> DerefMut for Wrapper<I>

where I: Clone + Debug + Eq + Hash + PartialEq + Send + Sync + 'static,

Dereference implementation to access the inner item

This allow accessing the item using (*wrapper).

fn deref_mut(&mut self) -> &mut Self::Target

Mutably dereferences the value.

impl<I> Drop for Wrapper<I>

where I: Clone + Debug + Eq + Hash + PartialEq + Send + Sync + 'static,

Drop implementation to decrement the processing counter and notify the dispatcher thread.

fn drop(&mut self)

Triggered when the wrapper is dropped.

This will decrement the processing counter and notify the dispatcher thread.

impl<I> Hash for Wrapper<I>

where I: Clone + Debug + Eq + Hash + PartialEq + Send + Sync + 'static,

fn hash<H: Hasher>(&self, state: &mut H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl<I> PartialEq for Wrapper<I>

where I: Clone + Debug + Eq + Hash + PartialEq + Send + Sync + 'static,

fn eq(&self, other: &Self) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<I> Eq for Wrapper<I>

where I: Clone + Debug + Eq + Hash + PartialEq + Send + Sync + 'static,