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|
use crate::prelude::*;
pub struct Server {
server: super::Server<tokio_tls::TlsStream<tokio::net::TcpStream>>,
sock_r:
tokio::sync::mpsc::Receiver<tokio_tls::Accept<tokio::net::TcpStream>>,
sock_w: tokio::sync::mpsc::Sender<
tokio_tls::TlsStream<tokio::net::TcpStream>,
>,
accepting_sockets: Vec<tokio_tls::Accept<tokio::net::TcpStream>>,
}
impl Server {
pub fn new(
buffer_size: usize,
read_timeout: std::time::Duration,
sock_r: tokio::sync::mpsc::Receiver<
tokio_tls::Accept<tokio::net::TcpStream>,
>,
allowed_login_methods: std::collections::HashSet<
crate::protocol::AuthType,
>,
) -> Self {
let (tls_sock_w, tls_sock_r) = tokio::sync::mpsc::channel(100);
Self {
server: super::Server::new(
buffer_size,
read_timeout,
tls_sock_r,
allowed_login_methods,
),
sock_r,
sock_w: tls_sock_w,
accepting_sockets: vec![],
}
}
}
impl Server {
const POLL_FNS:
&'static [&'static dyn for<'a> Fn(
&'a mut Self,
)
-> crate::component_future::Poll<
(),
Error,
>] = &[
&Self::poll_new_connections,
&Self::poll_handshake_connections,
&Self::poll_server,
];
fn poll_new_connections(
&mut self,
) -> crate::component_future::Poll<(), Error> {
if let Some(sock) = try_ready!(self
.sock_r
.poll()
.context(crate::error::SocketChannelReceive))
{
self.accepting_sockets.push(sock);
Ok(crate::component_future::Async::DidWork)
} else {
Err(Error::SocketChannelClosed)
}
}
fn poll_handshake_connections(
&mut self,
) -> crate::component_future::Poll<(), Error> {
let mut did_work = false;
let mut not_ready = false;
let mut i = 0;
while i < self.accepting_sockets.len() {
let sock = self.accepting_sockets.get_mut(i).unwrap();
match sock.poll() {
Ok(futures::Async::Ready(sock)) => {
self.accepting_sockets.swap_remove(i);
self.sock_w.try_send(sock).unwrap_or_else(|e| {
log::warn!(
"failed to send connected tls socket: {}",
e
);
});
did_work = true;
continue;
}
Ok(futures::Async::NotReady) => {
not_ready = true;
}
Err(e) => {
log::warn!("failed to accept tls connection: {}", e);
self.accepting_sockets.swap_remove(i);
continue;
}
}
i += 1;
}
if did_work {
Ok(crate::component_future::Async::DidWork)
} else if not_ready {
Ok(crate::component_future::Async::NotReady)
} else {
Ok(crate::component_future::Async::NothingToDo)
}
}
fn poll_server(&mut self) -> crate::component_future::Poll<(), Error> {
try_ready!(self.server.poll());
Ok(crate::component_future::Async::Ready(()))
}
}
#[must_use = "futures do nothing unless polled"]
impl futures::future::Future for Server {
type Item = ();
type Error = Error;
fn poll(&mut self) -> futures::Poll<Self::Item, Self::Error> {
crate::component_future::poll_future(self, Self::POLL_FNS)
}
}
|
