[go: up one dir, main page]

mio 0.4.0

Lightweight non-blocking IO
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
136
137
138
139
140
141
142
143
144
145

use {io, Evented, EventSet, Io, PollOpt, Selector, Token};
use sys::unix::{net, nix, Socket};
use std::io::{Read, Write};
use std::net::SocketAddr;
use std::os::unix::io::{RawFd, FromRawFd, AsRawFd};

#[derive(Debug)]
pub struct TcpSocket {
    io: Io,
}

impl TcpSocket {
    /// Returns a new, unbound, non-blocking, IPv4 socket
    pub fn v4() -> io::Result<TcpSocket> {
        TcpSocket::new(nix::AddressFamily::Inet)
    }

    /// Returns a new, unbound, non-blocking, IPv6 socket
    pub fn v6() -> io::Result<TcpSocket> {
        TcpSocket::new(nix::AddressFamily::Inet6)
    }

    fn new(family: nix::AddressFamily) -> io::Result<TcpSocket> {
        net::socket(family, nix::SockType::Stream, true)
            .map(|fd| From::from(Io::from_raw_fd(fd)))
    }

    pub fn connect(&self, addr: &SocketAddr) -> io::Result<bool> {
        net::connect(&self.io, &net::to_nix_addr(addr))
    }

    pub fn bind(&self, addr: &SocketAddr) -> io::Result<()> {
        net::bind(&self.io, &net::to_nix_addr(addr))
    }

    pub fn listen(&self, backlog: usize) -> io::Result<()> {
        net::listen(&self.io, backlog)
    }

    pub fn accept(&self) -> io::Result<Option<TcpSocket>> {
        net::accept(&self.io, true)
            .map(|fd| Some(From::from(Io::from_raw_fd(fd))))
            .or_else(io::to_non_block)
    }

    pub fn peer_addr(&self) -> io::Result<SocketAddr> {
        net::getpeername(&self.io)
            .map(net::to_std_addr)
    }

    pub fn local_addr(&self) -> io::Result<SocketAddr> {
        net::getsockname(&self.io)
            .map(net::to_std_addr)
    }

    pub fn try_clone(&self) -> io::Result<TcpSocket> {
        net::dup(&self.io)
            .map(From::from)
    }

    pub fn shutdown(&self, how: net::Shutdown) -> io::Result<()> {
        net::shutdown(&self.io, how)
    }

    /*
     *
     * ===== Socket Options =====
     *
     */

    pub fn set_reuseaddr(&self, val: bool) -> io::Result<()> {
        Socket::set_reuseaddr(self, val)
    }

    pub fn take_socket_error(&self) -> io::Result<()> {
        net::take_socket_error(&self.io)
    }

    pub fn set_nodelay(&self, nodelay: bool) -> io::Result<()> {
        net::set_nodelay(&self.io, nodelay)
    }

    pub fn set_keepalive(&self, seconds: Option<u32>) -> io::Result<()> {
        match seconds {
            Some(sec) => {
                try!(net::set_keepalive(&self.io, true));
                net::set_tcp_keepalive(&self.io, sec)
            },
            None => {
                net::set_keepalive(&self.io, false)
            }
        }
    }
}

impl Read for TcpSocket {
    fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> {
        self.io.read(buf)
    }
}

impl Write for TcpSocket {
    fn write(&mut self, buf: &[u8]) -> io::Result<usize> {
        self.io.write(buf)
    }

    fn flush(&mut self) -> io::Result<()> {
        self.io.flush()
    }
}

impl Evented for TcpSocket {
    fn register(&self, selector: &mut Selector, token: Token, interest: EventSet, opts: PollOpt) -> io::Result<()> {
        self.io.register(selector, token, interest, opts)
    }

    fn reregister(&self, selector: &mut Selector, token: Token, interest: EventSet, opts: PollOpt) -> io::Result<()> {
        self.io.reregister(selector, token, interest, opts)
    }

    fn deregister(&self, selector: &mut Selector) -> io::Result<()> {
        self.io.deregister(selector)
    }
}

impl Socket for TcpSocket {
}

impl From<Io> for TcpSocket {
    fn from(io: Io) -> TcpSocket {
        TcpSocket { io: io }
    }
}

impl FromRawFd for TcpSocket {
    unsafe fn from_raw_fd(fd: RawFd) -> TcpSocket {
        TcpSocket { io: Io::from_raw_fd(fd) }
    }
}

impl AsRawFd for TcpSocket {
    fn as_raw_fd(&self) -> RawFd {
        self.io.as_raw_fd()
    }
}