1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
use std::ops::Deref;
use crate::Buffer;
pub struct ReadLocker<'a>(&'a dyn Buffer);
impl<'a> ReadLocker<'a> {
pub fn new(b: &'a dyn Buffer) -> Self {
b.set_readable();
ReadLocker(b)
}
}
impl<'a> Drop for ReadLocker<'a> {
fn drop(&mut self) {
self.0.set_no_access();
}
}
impl<'a> std::fmt::Debug for ReadLocker<'a> {
fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
write!(f, "{:?}", self.deref())
}
}
impl<'a> Deref for ReadLocker<'a> {
type Target = [u8];
fn deref(&self) -> &Self::Target {
self.0
}
}