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Document cancel-safety of FuturesUnordered::poll_next #2897

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Document cancel-safety of FuturesUnordered::poll_next #2897

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8a75b98
Document cancel-safety of FuturesUnordered::poll_next
akonradi-signal Nov 13, 2024
ea5b0ea
Conditionalize cancel-safety on Future cancel safety
akonradi-signal Dec 2, 2024
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8 changes: 8 additions & 0 deletions futures-util/src/stream/futures_unordered/mod.rs
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Expand Up @@ -53,6 +53,14 @@ use self::ready_to_run_queue::{Dequeue, ReadyToRunQueue};
///
/// This type is only available when the `std` or `alloc` feature of this
/// library is activated, and it is activated by default.
///
/// # Cancel safety
///
/// This type is cancellation-safe when the inner [`Future`] is
/// cancellation-safe. If the future type is cancellation-safe, and
/// [`poll_next`](Stream::poll_next) is called (either directly or via
/// [`crate::StreamExt::next`]) and returns [`Poll::Pending`], no values will be
/// dropped if `poll_next` is not called again.
#[must_use = "streams do nothing unless polled"]
pub struct FuturesUnordered<Fut> {
ready_to_run_queue: Arc<ReadyToRunQueue<Fut>>,
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