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Super simple chat server.
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[package] | |
name = "chat-server" | |
version = "0.1.0" | |
edition = "2021" | |
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html | |
[dependencies] | |
tokio = { version = "1.20.1", features = ["full"] } |
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use tokio::{ | |
io::{AsyncBufReadExt, AsyncWriteExt, BufReader}, | |
net::TcpListener, | |
sync::broadcast, | |
}; | |
const PORT: i32 = 8080; | |
#[tokio::main] | |
async fn main() { | |
let listener = TcpListener::bind(format!("localhost:{}", PORT)) | |
.await | |
.expect("Port was occupied!"); | |
println!("Running chat server on port: {} 🚀", PORT); | |
let (sender, _) = broadcast::channel(20); | |
loop { | |
let (mut socket, addr) = listener | |
.accept() | |
.await | |
.expect("Could not accept new incomming connection."); | |
let sender = sender.clone(); | |
let mut reciever = sender.subscribe(); | |
tokio::spawn(async move { | |
let (read_half, mut writer) = socket.split(); | |
let mut reader = BufReader::new(read_half); | |
let mut line = String::new(); | |
loop { | |
tokio::select! { | |
result = reader.read_line(&mut line) => { | |
if let Ok(0) = result { | |
break; | |
} | |
sender.send((line.clone(), addr)).unwrap(); | |
line.clear(); | |
} | |
result = reciever.recv() => { | |
let (msg, new_addr) = result.unwrap(); | |
if addr != new_addr { | |
writer.write_all(msg.as_bytes()).await.unwrap(); | |
} | |
} | |
} | |
} | |
}); | |
} | |
} |
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