tokio/tokio-util/src/sync/mod.rs

//! Synchronization primitives

mod cancellation_token;
pub use cancellation_token::{
    guard::DropGuard, guard_ref::DropGuardRef, CancellationToken, WaitForCancellationFuture,
    WaitForCancellationFutureOwned,
};

mod mpsc;
pub use mpsc::{PollSendError, PollSender};

mod poll_semaphore;
pub use poll_semaphore::PollSemaphore;

mod reusable_box;
pub use reusable_box::ReusableBoxFuture;