Files
tokio/tokio-timer/src/wheel/stack.rs
T
Carl Lerche d822b721b4 Add DelayQueue implementation to tokio-timer (#550)
This patch adds a `DelayQueue` to tokio_timer. The `DelayQueue` allows
inserting elements as well as specifying a time at which the element
should be returned to the user. This allows handling more complex
timeout situations.
2018-08-20 21:47:10 -07:00

27 lines
774 B
Rust

use std::borrow::Borrow;
/// Abstracts the stack operations needed to track timeouts.
pub(crate) trait Stack: Default {
/// Type of the item stored in the stack
type Owned: Borrow<Self::Borrowed>;
/// Borrowed item
type Borrowed;
/// Item storage, this allows a slab to be used instead of just the heap
type Store;
/// Returns `true` if the stack is empty
fn is_empty(&self) -> bool;
/// Push an item onto the stack
fn push(&mut self, item: Self::Owned, store: &mut Self::Store);
/// Pop an item from the stack
fn pop(&mut self, store: &mut Self::Store) -> Option<Self::Owned>;
fn remove(&mut self, item: &Self::Borrowed, store: &mut Self::Store);
fn when(item: &Self::Borrowed, store: &Self::Store) -> u64;
}