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
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
|
use crate::park::{Park, Unpark};
use std::fmt;
use std::time::Duration;
pub(crate) enum Either<A, B> {
A(A),
B(B),
}
impl<A, B> Park for Either<A, B>
where
A: Park,
B: Park,
{
type Unpark = Either<A::Unpark, B::Unpark>;
type Error = Either<A::Error, B::Error>;
fn unpark(&self) -> Self::Unpark {
match self {
Either::A(a) => Either::A(a.unpark()),
Either::B(b) => Either::B(b.unpark()),
}
}
fn park(&mut self) -> Result<(), Self::Error> {
match self {
Either::A(a) => a.park().map_err(Either::A),
Either::B(b) => b.park().map_err(Either::B),
}
}
fn park_timeout(&mut self, duration: Duration) -> Result<(), Self::Error> {
match self {
Either::A(a) => a.park_timeout(duration).map_err(Either::A),
Either::B(b) => b.park_timeout(duration).map_err(Either::B),
}
}
fn shutdown(&mut self) {
match self {
Either::A(a) => a.shutdown(),
Either::B(b) => b.shutdown(),
}
}
}
impl<A, B> Unpark for Either<A, B>
where
A: Unpark,
B: Unpark,
{
fn unpark(&self) {
match self {
Either::A(a) => a.unpark(),
Either::B(b) => b.unpark(),
}
}
}
impl<A, B> fmt::Debug for Either<A, B>
where
A: fmt::Debug,
B: fmt::Debug,
{
fn fmt(&self, fmt: &mut fmt::Formatter<'_>) -> fmt::Result {
match self {
Either::A(a) => a.fmt(fmt),
Either::B(b) => b.fmt(fmt),
}
}
}
|
