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
use crate::{SinkExt, StreamExt, TryStreamExt};
use serde::{Deserialize, Serialize};
use std::io::Error;
use tokio::net::unix::{OwnedReadHalf, OwnedWriteHalf, SocketAddr};
use tokio::net::UnixStream;
use tokio_serde::formats::SymmetricalBincode;
use tokio_serde::SymmetricallyFramed;
use tokio_util::codec::{FramedRead, FramedWrite, LengthDelimitedCodec};
#[derive(Debug)]
pub struct Socket<In, Out> {
address: SocketAddr,
reader: SymmetricallyFramed<
FramedRead<OwnedReadHalf, LengthDelimitedCodec>,
In,
SymmetricalBincode<In>,
>,
writer: SymmetricallyFramed<
FramedWrite<OwnedWriteHalf, LengthDelimitedCodec>,
Out,
SymmetricalBincode<Out>,
>,
}
impl<In, Out> Socket<In, Out>
where
for<'a> In: Deserialize<'a> + Unpin,
Out: Serialize + Unpin,
{
pub fn new(address: SocketAddr, stream: UnixStream) -> Self {
let (stream_read, stream_write) = stream.into_split();
let length_delimited_read = FramedRead::new(stream_read, LengthDelimitedCodec::new());
let reader = tokio_serde::SymmetricallyFramed::new(
length_delimited_read,
SymmetricalBincode::default(),
);
let length_delimited_write = FramedWrite::new(stream_write, LengthDelimitedCodec::new());
let writer = tokio_serde::SymmetricallyFramed::new(
length_delimited_write,
SymmetricalBincode::default(),
);
Self {
address,
reader,
writer,
}
}
pub async fn read(&mut self) -> Option<Result<In, Error>> {
self.reader.next().await
}
pub async fn try_read(&mut self) -> Result<Option<In>, Error> {
self.reader.try_next().await
}
pub async fn send(&mut self, out: Out) -> Result<(), Error> {
self.writer.send(out).await
}
pub fn address(&self) -> &SocketAddr {
&self.address
}
}