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Use async-await instead of combinators in main.rs

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This commit is contained in:
Jonas Herzig 2020-04-05 18:46:03 +02:00
parent c2ebc19134
commit 936d12f4a0
1 changed files with 43 additions and 47 deletions
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90
src/main.rs
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@ -156,54 +156,50 @@ async fn main() -> Result<(), Error> {
// Once both are done, begin proxy duty
let config = config.clone();
let f = future::try_join(client, server)
.and_then(move |(client, server)| {
let (client_sink, client_stream) = client.split();
let client_sink = client_sink.with(|m: ControlPacket<Clientbound>| {
let m = RawControlPacket::from(m);
let mut header = BytesMut::with_capacity(6);
header.put_u16(m.id);
header.put_u32(m.bytes.len() as u32);
let mut buf = Vec::new();
buf.extend(header);
buf.extend(m.bytes);
future::ready(Ok::<_, Error>(Message::Binary(buf)))
});
let client_stream = client_stream.err_into().try_filter_map(|m| {
future::ok(match m {
Message::Binary(b) if b.len() >= 6 => {
let id = BigEndian::read_u16(&b);
// b[2..6] is length which is implicit in websocket msgs
let bytes = Bytes::from(b).slice(6..);
RawControlPacket { id, bytes }.try_into().ok()
}
_ => None,
})
});
let (server_sink, server_stream) = server.split();
let server_sink = server_sink.sink_err_into();
let server_stream = server_stream.err_into();
Connection::new(
config,
client_sink,
client_stream,
server_sink,
server_stream,
)
})
.or_else(move |err| {
future::ready({
if err.is_connection_closed() {
Ok(())
} else {
println!("Error on connection {}: {:?}", addr, err);
Err(())
tokio::spawn(async move {
let (client, server) = future::try_join(client, server).await?;
let (client_sink, client_stream) = client.split();
let client_sink = client_sink.with(|m: ControlPacket<Clientbound>| {
let m = RawControlPacket::from(m);
let mut header = BytesMut::with_capacity(6);
header.put_u16(m.id);
header.put_u32(m.bytes.len() as u32);
let mut buf = Vec::new();
buf.extend(header);
buf.extend(m.bytes);
future::ready(Ok::<_, Error>(Message::Binary(buf)))
});
let client_stream = client_stream.err_into().try_filter_map(|m| {
future::ok(match m {
Message::Binary(b) if b.len() >= 6 => {
let id = BigEndian::read_u16(&b);
// b[2..6] is length which is implicit in websocket msgs
let bytes = Bytes::from(b).slice(6..);
RawControlPacket { id, bytes }.try_into().ok()
}
_ => None,
})
})
.map_ok(move |()| println!("Client connection closed: {}", addr));
tokio::spawn(f);
});
let (server_sink, server_stream) = server.split();
let server_sink = server_sink.sink_err_into();
let server_stream = server_stream.err_into();
Connection::new(
config,
client_sink,
client_stream,
server_sink,
server_stream,
).await?;
println!("Client connection closed: {}", addr);
Ok::<_, Error>(())
}.unwrap_or_else(move |err| {
if !err.is_connection_closed() {
println!("Error on connection {}: {:?}", addr, err);
}
}));
}
}