aboutsummaryrefslogtreecommitdiff
path: root/vendor/rayon/src/iter/take_any.rs
diff options
context:
space:
mode:
authorValentin Popov <valentin@popov.link>2024-07-19 15:37:58 +0300
committerValentin Popov <valentin@popov.link>2024-07-19 15:37:58 +0300
commita990de90fe41456a23e58bd087d2f107d321f3a1 (patch)
tree15afc392522a9e85dc3332235e311b7d39352ea9 /vendor/rayon/src/iter/take_any.rs
parent3d48cd3f81164bbfc1a755dc1d4a9a02f98c8ddd (diff)
downloadfparkan-a990de90fe41456a23e58bd087d2f107d321f3a1.tar.xz
fparkan-a990de90fe41456a23e58bd087d2f107d321f3a1.zip
Deleted vendor folder
Diffstat (limited to 'vendor/rayon/src/iter/take_any.rs')
-rw-r--r--vendor/rayon/src/iter/take_any.rs144
1 files changed, 0 insertions, 144 deletions
diff --git a/vendor/rayon/src/iter/take_any.rs b/vendor/rayon/src/iter/take_any.rs
deleted file mode 100644
index e3992b3..0000000
--- a/vendor/rayon/src/iter/take_any.rs
+++ /dev/null
@@ -1,144 +0,0 @@
-use super::plumbing::*;
-use super::*;
-use std::sync::atomic::{AtomicUsize, Ordering};
-
-/// `TakeAny` is an iterator that iterates over `n` elements from anywhere in `I`.
-/// This struct is created by the [`take_any()`] method on [`ParallelIterator`]
-///
-/// [`take_any()`]: trait.ParallelIterator.html#method.take_any
-/// [`ParallelIterator`]: trait.ParallelIterator.html
-#[must_use = "iterator adaptors are lazy and do nothing unless consumed"]
-#[derive(Clone, Debug)]
-pub struct TakeAny<I: ParallelIterator> {
- base: I,
- count: usize,
-}
-
-impl<I> TakeAny<I>
-where
- I: ParallelIterator,
-{
- /// Creates a new `TakeAny` iterator.
- pub(super) fn new(base: I, count: usize) -> Self {
- TakeAny { base, count }
- }
-}
-
-impl<I> ParallelIterator for TakeAny<I>
-where
- I: ParallelIterator,
-{
- type Item = I::Item;
-
- fn drive_unindexed<C>(self, consumer: C) -> C::Result
- where
- C: UnindexedConsumer<Self::Item>,
- {
- let consumer1 = TakeAnyConsumer {
- base: consumer,
- count: &AtomicUsize::new(self.count),
- };
- self.base.drive_unindexed(consumer1)
- }
-}
-
-/// ////////////////////////////////////////////////////////////////////////
-/// Consumer implementation
-
-struct TakeAnyConsumer<'f, C> {
- base: C,
- count: &'f AtomicUsize,
-}
-
-impl<'f, T, C> Consumer<T> for TakeAnyConsumer<'f, C>
-where
- C: Consumer<T>,
- T: Send,
-{
- type Folder = TakeAnyFolder<'f, C::Folder>;
- type Reducer = C::Reducer;
- type Result = C::Result;
-
- fn split_at(self, index: usize) -> (Self, Self, Self::Reducer) {
- let (left, right, reducer) = self.base.split_at(index);
- (
- TakeAnyConsumer { base: left, ..self },
- TakeAnyConsumer {
- base: right,
- ..self
- },
- reducer,
- )
- }
-
- fn into_folder(self) -> Self::Folder {
- TakeAnyFolder {
- base: self.base.into_folder(),
- count: self.count,
- }
- }
-
- fn full(&self) -> bool {
- self.count.load(Ordering::Relaxed) == 0 || self.base.full()
- }
-}
-
-impl<'f, T, C> UnindexedConsumer<T> for TakeAnyConsumer<'f, C>
-where
- C: UnindexedConsumer<T>,
- T: Send,
-{
- fn split_off_left(&self) -> Self {
- TakeAnyConsumer {
- base: self.base.split_off_left(),
- ..*self
- }
- }
-
- fn to_reducer(&self) -> Self::Reducer {
- self.base.to_reducer()
- }
-}
-
-struct TakeAnyFolder<'f, C> {
- base: C,
- count: &'f AtomicUsize,
-}
-
-fn checked_decrement(u: &AtomicUsize) -> bool {
- u.fetch_update(Ordering::Relaxed, Ordering::Relaxed, |u| u.checked_sub(1))
- .is_ok()
-}
-
-impl<'f, T, C> Folder<T> for TakeAnyFolder<'f, C>
-where
- C: Folder<T>,
-{
- type Result = C::Result;
-
- fn consume(mut self, item: T) -> Self {
- if checked_decrement(self.count) {
- self.base = self.base.consume(item);
- }
- self
- }
-
- fn consume_iter<I>(mut self, iter: I) -> Self
- where
- I: IntoIterator<Item = T>,
- {
- self.base = self.base.consume_iter(
- iter.into_iter()
- .take_while(move |_| checked_decrement(self.count)),
- );
- self
- }
-
- fn complete(self) -> C::Result {
- self.base.complete()
- }
-
- fn full(&self) -> bool {
- self.count.load(Ordering::Relaxed) == 0 || self.base.full()
- }
-}