61 lines
1.1 KiB
Rust
61 lines
1.1 KiB
Rust
use frame::{self, Frame};
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use slab::Slab;
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use std::marker::PhantomData;
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/// Buffers frames for multiple streams.
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#[derive(Debug)]
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pub struct Buffer<B> {
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slab: Slab<Slot<B>>,
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}
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/// A sequence of frames in a `Buffer`
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#[derive(Debug)]
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pub struct Deque<B> {
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indices: Option<Indices>,
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_p: PhantomData<B>,
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}
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/// Tracks the head & tail for a sequence of frames in a `Buffer`.
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#[derive(Debug, Default)]
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struct Indices {
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head: usize,
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tail: usize,
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}
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#[derive(Debug)]
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struct Slot<B> {
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frame: Frame<B>,
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next: usize,
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}
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impl<B> Buffer<B> {
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pub fn new() -> Self {
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Buffer {
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slab: Slab::new(),
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}
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}
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}
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impl<B> Deque<B> {
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pub fn new() -> Self {
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Deque {
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indices: None,
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_p: PhantomData,
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}
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}
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pub fn is_empty(&self) -> bool {
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self.indices.is_none()
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}
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pub fn push_back(&mut self, buf: &mut Buffer<B>, val: Frame<B>) {
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unimplemented!();
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}
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pub fn pop_front(&mut self, buf: &mut Buffer<B>) -> Option<Frame<B>> {
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unimplemented!();
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}
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}
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