ringbuf/rb/
traits.rs

1use crate::traits::RingBuffer;
2#[cfg(feature = "alloc")]
3use {crate::alias::Arc, alloc::rc::Rc};
4
5/// Abstract pointer to the owning ring buffer.
6///
7/// # Safety
8///
9/// Implementation must be fair (e.g. not replacing pointers between calls and so on).
10pub unsafe trait RbRef: Clone + AsRef<Self::Rb> {
11    /// Underlying ring buffer.
12    type Rb: RingBuffer + ?Sized;
13    /// Get ring buffer reference.
14    fn rb(&self) -> &Self::Rb {
15        self.as_ref()
16    }
17}
18
19unsafe impl<B: RingBuffer + AsRef<B> + ?Sized> RbRef for &B {
20    type Rb = B;
21}
22#[cfg(feature = "alloc")]
23unsafe impl<B: RingBuffer + ?Sized> RbRef for Rc<B> {
24    type Rb = B;
25}
26#[cfg(feature = "alloc")]
27unsafe impl<B: RingBuffer + ?Sized> RbRef for Arc<B> {
28    type Rb = B;
29}