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use super::*;
use tokio::io::{AsyncRead, AsyncWrite};
use tcp::Tcp;
impl<R: AsyncRead + AsyncWrite, H: Handler> Connection<R, H> {
pub fn channel_open_session(mut self) -> ChannelOpen<R, H, SessionChannel> {
let num = if let Some(ref mut s) = self.session {
s.channel_open_session().unwrap()
} else {
unreachable!()
};
ChannelOpen {
connection: Some(self),
channel: num,
channel_type: PhantomData,
first_round: true,
}
}
pub fn channel_open_x11(
mut self,
originator_address: &str,
originator_port: u32,
) -> ChannelOpen<R, H, X11Channel> {
let num = if let Some(ref mut s) = self.session {
s.channel_open_x11(originator_address, originator_port)
.unwrap()
} else {
unreachable!()
};
ChannelOpen {
connection: Some(self),
channel: num,
channel_type: PhantomData,
first_round: true,
}
}
pub fn channel_open_direct_tcpip(
mut self,
host_to_connect: &str,
port_to_connect: u32,
originator_address: &str,
originator_port: u32,
) -> ChannelOpen<R, H, DirectTcpIpChannel> {
let num = if let Some(ref mut s) = self.session {
s.channel_open_direct_tcpip(
host_to_connect,
port_to_connect,
originator_address,
originator_port,
).unwrap()
} else {
unreachable!()
};
ChannelOpen {
connection: Some(self),
channel: num,
channel_type: PhantomData,
first_round: true,
}
}
}
use std::marker::PhantomData;
#[doc(hidden)]
pub enum X11Channel {}
#[doc(hidden)]
pub enum SessionChannel {}
#[doc(hidden)]
pub enum DirectTcpIpChannel {}
pub struct ChannelOpen<R: AsyncRead + AsyncWrite, H: Handler, ChannelType> {
connection: Option<Connection<R, H>>,
channel: ChannelId,
channel_type: PhantomData<ChannelType>,
first_round: bool,
}
impl<R: AsyncRead + AsyncWrite + Tcp, H: Handler, ChannelType> Future
for ChannelOpen<R, H, ChannelType> {
type Item = (Connection<R, H>, ChannelId);
type Error = HandlerError<H::Error>;
fn poll(&mut self) -> Poll<Self::Item, Self::Error> {
if self.first_round {
if let Some(ref mut c) = self.connection {
c.abort_read()?;
}
self.first_round = false
}
loop {
debug!("channelopen loop");
let is_open = if let Some(ref c) = self.connection {
if let Some(ref s) = c.session {
s.channel_is_open(self.channel) && c.is_reading()
} else {
false
}
} else {
false
};
if is_open {
return Ok(Async::Ready(
(self.connection.take().unwrap(), self.channel),
));
}
let status = if let Some(ref mut c) = self.connection {
try_ready!(c.atomic_poll())
} else {
unreachable!()
};
if let Status::Disconnect = status {
return Err(HandlerError::Error(Error::Disconnect));
}
}
}
}