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
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167

use prelude::{Protocol, IoControl, GetSocketOption, SetSocketOption};
use ffi::{RawFd, AsRawFd, ioctl, getsockopt, setsockopt,
          getsockname, getpeername, socket, bind, shutdown};
use core::{IoContext, AsIoContext, Socket, AsyncFd};
use async::Handler;
use reactive_io::{AsAsyncFd, getnonblock, setnonblock, cancel, connect, send, async_send, sendto,
                  async_sendto, recv, async_recv, recvfrom, async_recvfrom};
use socket_base::{Shutdown, BytesReadable};

use std::io;
use std::fmt;

/// Provides a raw-oriented socket.
pub struct RawSocket<P> {
    pro: P,
    fd: AsyncFd,
}

impl<P: Protocol> RawSocket<P> {
    pub fn new(ctx: &IoContext, pro: P) -> io::Result<RawSocket<P>> {
        let fd = try!(socket(&pro));
        Ok(unsafe { Self::from_raw_fd(ctx, pro, fd) })
    }

    pub fn async_connect<F>(&mut self, ep: &P:: Endpoint, handler: F) -> F::Output
        where F: Handler<(), io::Error>,
    {
        handler.result(self.as_ctx(), self.connect(ep))
    }

    pub fn async_receive<F>(&mut self, buf: &mut [u8], flags: i32, handler: F) -> F::Output
        where F: Handler<usize, io::Error>,
    {
        async_recv(self, buf, flags, handler)
    }

    pub fn async_receive_from<F>(&mut self, buf: &mut [u8], flags: i32, handler: F) -> F::Output
        where F: Handler<(usize, P::Endpoint), io::Error>,
    {
        let ep = unsafe { self.pro.uninitialized() };
        async_recvfrom(self, buf, flags, ep, handler)
    }

    pub fn async_send<F>(&mut self, buf: &[u8], flags: i32, handler: F) -> F::Output
        where F: Handler<usize, io::Error>,
    {
        async_send(self, buf, flags, handler)
    }

    pub fn async_send_to<F>(&mut self, buf: &[u8], flags: i32, ep: P::Endpoint, handler: F) -> F::Output
        where F: Handler<usize, io::Error>,
    {
        async_sendto(self, buf, flags, ep, handler)
    }

    pub fn available(&self) -> io::Result<usize> {
        let mut bytes = BytesReadable::default();
        try!(self.io_control(&mut bytes));
        Ok(bytes.get())
    }

    pub fn bind(&self, ep: &P::Endpoint) -> io::Result<()> {
        bind(self, ep)
    }

    pub fn cancel(&mut self) -> &Self {
        cancel(self);
        self
    }

    pub fn connect(&self, ep: &P:: Endpoint) -> io::Result<()> {
        connect(self, ep)
    }

    pub fn get_non_blocking(&self) -> io::Result<bool> {
        getnonblock(self)
    }

    pub fn get_option<C>(&self) -> io::Result<C>
        where C: GetSocketOption<P>,
    {
        getsockopt(self, &self.pro)
    }

    pub fn io_control<T>(&self, cmd: &mut T) -> io::Result<()>
        where T: IoControl,
    {
        ioctl(self, cmd)
    }

    pub fn local_endpoint(&self) -> io::Result<P::Endpoint> {
        getsockname(self, &self.pro)
    }

    pub fn receive(&self, buf: &mut [u8], flags: i32) -> io::Result<usize> {
        recv(self, buf, flags)
    }

    pub fn receive_from(&self, buf: &mut [u8], flags: i32) -> io::Result<(usize, P::Endpoint)> {
        recvfrom(self, buf, flags, &self.pro)
    }

    pub fn remote_endpoint(&self) -> io::Result<P::Endpoint> {
        getpeername(self, &self.pro)
    }

    pub fn send(&self, buf: &[u8], flags: i32) -> io::Result<usize> {
        send(self, buf, flags)
    }

    pub fn send_to(&self, buf: &[u8], flags: i32, ep: P::Endpoint) -> io::Result<usize> {
        sendto(self, buf, flags, ep)
    }

    pub fn set_non_blocking(&self, on: bool) -> io::Result<()> {
        setnonblock(self, on)
    }

    pub fn set_option<C>(&self, cmd: C) -> io::Result<()>
        where C: SetSocketOption<P>,
    {
        setsockopt(self, &self.pro, cmd)
    }

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

impl<P: Protocol> fmt::Debug for RawSocket<P> {
    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
        write!(f, "RawSocket({:?})", self.pro)
    }
}

impl<P> AsRawFd for RawSocket<P> {
    fn as_raw_fd(&self) -> RawFd {
        self.fd.as_raw_fd()
    }
}

unsafe impl<P> Send for RawSocket<P> { }

unsafe impl<P> AsIoContext for RawSocket<P> {
    fn as_ctx(&self) -> &IoContext {
        self.fd.as_ctx()
    }
}

impl<P: Protocol> Socket<P> for RawSocket<P> {
    unsafe fn from_raw_fd(ctx: &IoContext, pro: P, fd: RawFd) -> RawSocket<P> {
        RawSocket {
            pro: pro,
            fd: AsyncFd::new::<Self>(fd, ctx),
        }
    }

    fn protocol(&self) -> P {
        self.pro.clone()
    }
}

impl<P: Protocol> AsAsyncFd for RawSocket<P> {
    fn as_fd(&self) -> &AsyncFd {
        &self.fd
    }
}