hyperdriver 0.12.3

The missing middle for Hyper - Servers and Clients with ergonomic APIs
Documentation 
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
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135

//! Core stream type for braid providing [AsyncRead] and [AsyncWrite].

use chateau::client::pool::PoolableStream;
use pin_project::pin_project;
use tokio::io::{AsyncRead, AsyncWrite};

use crate::info::BraidAddr;
use chateau::info::{ConnectionInfo, HasConnectionInfo};
use chateau::stream::duplex::DuplexStream;
use chateau::stream::tcp::TcpStream;
use chateau::stream::unix::UnixStream;

#[derive(Debug)]
#[pin_project(project = BraidCoreProjection)]
enum BraidCore {
    /// A TCP stream
    Tcp(#[pin] TcpStream),

    /// A duplex stream
    Duplex(#[pin] DuplexStream),

    /// A Unix stream
    Unix(#[pin] UnixStream),
}

/// Dispatching wrapper for potential stream connection types
///
/// Effectively implements enum-dispatch for AsyncRead and AsyncWrite
/// around the stream types which we might use in braid.
///
/// This core type is used in the server and client modules, and so is
/// generic over the TLS stream type (which is different for client and server).
#[derive(Debug)]
#[pin_project]
pub struct Braid {
    #[pin]
    inner: BraidCore,
}

impl HasConnectionInfo for Braid {
    type Addr = BraidAddr;
    fn info(&self) -> ConnectionInfo<BraidAddr> {
        match &self.inner {
            BraidCore::Tcp(stream) => stream.info().map(BraidAddr::Tcp),
            BraidCore::Duplex(stream) => {
                <DuplexStream as HasConnectionInfo>::info(stream).map(|_| BraidAddr::Duplex)
            }
            BraidCore::Unix(stream) => stream.info().map(BraidAddr::Unix),
        }
    }
}

macro_rules! dispatch_core {
    (pin $driver:ident.$method:ident($($args:expr),*)) => {

        match $driver.project().inner.project() {
            BraidCoreProjection::Tcp(stream) => stream.$method($($args),*),
            BraidCoreProjection::Duplex(stream) => stream.$method($($args),*),
            BraidCoreProjection::Unix(stream) => stream.$method($($args),*),
        }
    };

    ($driver:ident.$method:ident($($args:expr),*)) => {

        match &$driver.inner {
            BraidCore::Tcp(stream) => stream.$method($($args),*),
            BraidCore::Duplex(stream) => stream.$method($($args),*),
            BraidCore::Unix(stream) => stream.$method($($args),*),
        }
    };
}

impl PoolableStream for Braid {
    fn can_share(&self) -> bool {
        dispatch_core!(self.can_share())
    }
}

impl AsyncRead for Braid {
    fn poll_read(
        self: std::pin::Pin<&mut Self>,
        cx: &mut std::task::Context<'_>,
        buf: &mut tokio::io::ReadBuf<'_>,
    ) -> std::task::Poll<std::io::Result<()>> {
        dispatch_core!(pin self.poll_read(cx, buf))
    }
}

impl AsyncWrite for Braid {
    fn poll_write(
        self: std::pin::Pin<&mut Self>,
        cx: &mut std::task::Context<'_>,
        buf: &[u8],
    ) -> std::task::Poll<Result<usize, std::io::Error>> {
        dispatch_core!(pin self.poll_write(cx, buf))
    }

    fn poll_flush(
        self: std::pin::Pin<&mut Self>,
        cx: &mut std::task::Context<'_>,
    ) -> std::task::Poll<Result<(), std::io::Error>> {
        dispatch_core!(pin self.poll_flush(cx))
    }

    fn poll_shutdown(
        self: std::pin::Pin<&mut Self>,
        cx: &mut std::task::Context<'_>,
    ) -> std::task::Poll<Result<(), std::io::Error>> {
        dispatch_core!(pin self.poll_shutdown(cx))
    }
}

impl From<TcpStream> for Braid {
    fn from(stream: TcpStream) -> Self {
        Self {
            inner: BraidCore::Tcp(stream),
        }
    }
}

impl From<DuplexStream> for Braid {
    fn from(stream: DuplexStream) -> Self {
        Self {
            inner: BraidCore::Duplex(stream),
        }
    }
}

impl From<UnixStream> for Braid {
    fn from(stream: UnixStream) -> Self {
        Self {
            inner: BraidCore::Unix(stream),
        }
    }
}