internal: vendor lsp-server

lib/lsp-server/src/socket.rs

@@ -0,0 +1,46 @@
+use std::{
+    io::{self, BufReader},
+    net::TcpStream,
+    thread,
+};
+
+use crossbeam_channel::{bounded, Receiver, Sender};
+
+use crate::{
+    stdio::{make_io_threads, IoThreads},
+    Message,
+};
+
+pub(crate) fn socket_transport(
+    stream: TcpStream,
+) -> (Sender<Message>, Receiver<Message>, IoThreads) {
+    let (reader_receiver, reader) = make_reader(stream.try_clone().unwrap());
+    let (writer_sender, writer) = make_write(stream.try_clone().unwrap());
+    let io_threads = make_io_threads(reader, writer);
+    (writer_sender, reader_receiver, io_threads)
+}
+
+fn make_reader(stream: TcpStream) -> (Receiver<Message>, thread::JoinHandle<io::Result<()>>) {
+    let (reader_sender, reader_receiver) = bounded::<Message>(0);
+    let reader = thread::spawn(move || {
+        let mut buf_read = BufReader::new(stream);
+        while let Some(msg) = Message::read(&mut buf_read).unwrap() {
+            let is_exit = matches!(&msg, Message::Notification(n) if n.is_exit());
+            reader_sender.send(msg).unwrap();
+            if is_exit {
+                break;
+            }
+        }
+        Ok(())
+    });
+    (reader_receiver, reader)
+}
+
+fn make_write(mut stream: TcpStream) -> (Sender<Message>, thread::JoinHandle<io::Result<()>>) {
+    let (writer_sender, writer_receiver) = bounded::<Message>(0);
+    let writer = thread::spawn(move || {
+        writer_receiver.into_iter().try_for_each(|it| it.write(&mut stream)).unwrap();
+        Ok(())
+    });
+    (writer_sender, writer)
+}