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dispatcher.rs
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dispatcher.rs
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use std::num::NonZeroUsize;
use compio::{
dispatcher::Dispatcher,
io::{AsyncRead, AsyncWriteExt},
net::{TcpListener, TcpStream},
runtime::spawn,
BufResult,
};
use futures_util::{stream::FuturesUnordered, StreamExt};
#[compio::main]
async fn main() {
const THREAD_NUM: usize = 5;
const CLIENT_NUM: usize = 10;
let listener = TcpListener::bind("127.0.0.1:0").await.unwrap();
let addr = listener.local_addr().unwrap();
let dispatcher = Dispatcher::builder()
.worker_threads(NonZeroUsize::new(THREAD_NUM).unwrap())
.build()
.unwrap();
spawn(async move {
let mut futures = FuturesUnordered::from_iter((0..CLIENT_NUM).map(|i| {
let addr = &addr;
async move {
let mut cli = TcpStream::connect(addr).await.unwrap();
cli.write_all(format!("Hello world {}!", i)).await.unwrap();
}
}));
while let Some(()) = futures.next().await {}
})
.detach();
let mut handles = FuturesUnordered::new();
for _i in 0..CLIENT_NUM {
let (mut srv, _) = listener.accept().await.unwrap();
let handle = dispatcher
.execute(move || async move {
let BufResult(res, buf) = srv.read(Vec::with_capacity(20)).await;
res.unwrap();
println!("{}", std::str::from_utf8(&buf).unwrap());
})
.unwrap();
handles.push(handle.join());
}
while handles.next().await.is_some() {}
dispatcher.join().await.unwrap();
}