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use {
super::{util::*, NameGen},
anyhow::Context,
interprocess::local_socket::{LocalSocketListener, LocalSocketStream},
std::{
io::{self, BufRead, BufReader, Write},
sync::{mpsc::Sender, Arc},
},
};
static SERVER_MSG: &str = "Hello from server!\n";
static CLIENT_MSG: &str = "Hello from client!\n";
pub fn server(
name_sender: Sender<String>,
num_clients: u32,
prefer_namespaced: bool,
) -> TestResult {
let (name, listener) = NameGen::new_auto(prefer_namespaced)
.find_map(|nm| {
let l = match LocalSocketListener::bind(&*nm) {
Ok(l) => l,
Err(e) if e.kind() == io::ErrorKind::AddrInUse => return None,
Err(e) => return Some(Err(e)),
};
Some(Ok((nm, l)))
})
.unwrap()
.context("Listener bind failed")?;
let _ = name_sender.send(name);
let mut buffer = String::with_capacity(128);
for _ in 0..num_clients {
let mut conn = match listener.accept() {
Ok(c) => BufReader::new(c),
Err(e) => {
eprintln!("Incoming connection failed: {}", e);
continue;
}
};
conn.read_line(&mut buffer)
.context("Socket receive failed")?;
conn.get_mut()
.write_all(SERVER_MSG.as_bytes())
.context("Socket send failed")?;
assert_eq!(buffer, CLIENT_MSG);
buffer.clear();
}
Ok(())
}
pub fn client(name: Arc<String>) -> TestResult {
let mut buffer = String::with_capacity(128);
let mut conn = LocalSocketStream::connect(name.as_str())
.context("Connect failed")
.map(BufReader::new)?;
conn.get_mut()
.write_all(CLIENT_MSG.as_bytes())
.context("Socket send failed")?;
conn.read_line(&mut buffer)
.context("Socket receive failed")?;
assert_eq!(buffer, SERVER_MSG);
Ok(())
}
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