vmcircbuf 0.1.0

A circular buffer that magically wraps around without any copying
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20

vmcircbuf
=========
[![Build Status](https://travis-ci.org/mmaroti/vmcircbuf.svg?branch=master)](https://travis-ci.org/mmaroti/vmcircbuf)
![GitHub](https://img.shields.io/github/license/mmaroti/vmcircbuf)

This is a simple crate to create a circular buffer that magically wraps around
without any copying. This is achieved by mapping the same physical memory page 
twice into the virtual address space.

```
let mut buffer = Buffer::new(0, 0).unwrap();
let size = buffer.size();

for (i, a) in buffer.slice_mut(0, size).iter_mut().enumerate() {
    *a = i as u8;
}
for (i, a) in buffer.slice(10, size).iter().enumerate() {
    assert_eq!(*a, (i + 10) as u8);
}
```