async

[mt_rudp.git] / src / main.rs

diff --git a/src/main.rs b/src/main.rs
index aadb5ccd3fccea83724ff8debd81fbbddfc8a75e..241d324f845067e71bc0bbf1795a1a5189abf5df 100644 (file)
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,6 +1,7 @@
 #![feature(yeet_expr)]
 #![feature(cursor_remaining)]
 #![feature(hash_drain_filter)]
+#![feature(async_fn_in_trait)]
 mod client;
 pub mod error;
 mod recv_worker;
@@ -8,12 +9,13 @@ mod recv_worker;
 use byteorder::{BigEndian, WriteBytesExt};
 pub use client::{connect, Sender as Client};
 use num_enum::TryFromPrimitive;
+use std::future::Future;
 use std::{
     io::{self, Write},
     ops,
-    sync::{mpsc, Arc},
-    thread,
+    sync::Arc,
 };
+use tokio::sync::mpsc;
 
 pub const PROTO_ID: u32 = 0x4f457403;
 pub const UDP_PKT_SIZE: usize = 512;
@@ -23,11 +25,11 @@ pub const INIT_SEQNUM: u16 = 65500;
 pub const TIMEOUT: u64 = 30;
 
 pub trait UdpSender: Send + Sync + 'static {
-    fn send(&self, data: Vec<u8>) -> io::Result<()>;
+    async fn send(&self, data: Vec<u8>) -> io::Result<()>;
 }
 
 pub trait UdpReceiver: Send + Sync + 'static {
-    fn recv(&self) -> io::Result<Vec<u8>>;
+    async fn recv(&self) -> io::Result<Vec<u8>>;
 }
 
 #[derive(Debug, Copy, Clone)]
@@ -79,7 +81,7 @@ pub struct RudpShare<S: UdpSender> {
 #[derive(Debug)]
 pub struct RudpReceiver<S: UdpSender> {
     share: Arc<RudpShare<S>>,
-    pkt_rx: mpsc::Receiver<InPkt>,
+    pkt_rx: mpsc::UnboundedReceiver<InPkt>,
 }
 
 #[derive(Debug)]
@@ -88,7 +90,7 @@ pub struct RudpSender<S: UdpSender> {
 }
 
 impl<S: UdpSender> RudpShare<S> {
-    pub fn send(&self, tp: PktType, pkt: Pkt<&[u8]>) -> io::Result<()> {
+    pub async fn send(&self, tp: PktType, pkt: Pkt<&[u8]>) -> io::Result<()> {
         let mut buf = Vec::with_capacity(4 + 2 + 1 + 1 + pkt.data.len());
         buf.write_u32::<BigEndian>(PROTO_ID)?;
         buf.write_u16::<BigEndian>(self.remote_id)?;
@@ -96,20 +98,20 @@ impl<S: UdpSender> RudpShare<S> {
         buf.write_u8(tp as u8)?;
         buf.write(pkt.data)?;
 
-        self.udp_tx.send(buf)?;
+        self.udp_tx.send(buf).await?;
 
         Ok(())
     }
 }
 
 impl<S: UdpSender> RudpSender<S> {
-    pub fn send(&self, pkt: Pkt<&[u8]>) -> io::Result<()> {
-        self.share.send(PktType::Orig, pkt) // TODO
+    pub async fn send(&self, pkt: Pkt<&[u8]>) -> io::Result<()> {
+        self.share.send(PktType::Orig, pkt).await // TODO
     }
 }
 
 impl<S: UdpSender> ops::Deref for RudpReceiver<S> {
-    type Target = mpsc::Receiver<InPkt>;
+    type Target = mpsc::UnboundedReceiver<InPkt>;
 
     fn deref(&self) -> &Self::Target {
         &self.pkt_rx
@@ -122,7 +124,7 @@ pub fn new<S: UdpSender, R: UdpReceiver>(
     udp_tx: S,
     udp_rx: R,
 ) -> (RudpSender<S>, RudpReceiver<S>) {
-    let (pkt_tx, pkt_rx) = mpsc::channel();
+    let (pkt_tx, pkt_rx) = mpsc::unbounded_channel();
 
     let share = Arc::new(RudpShare {
         id,
@@ -132,9 +134,7 @@ pub fn new<S: UdpSender, R: UdpReceiver>(
     });
     let recv_share = Arc::clone(&share);
 
-    thread::spawn(|| {
-        recv_worker::RecvWorker::new(udp_rx, recv_share, pkt_tx).run();
-    });
+    tokio::spawn(async { recv_worker::RecvWorker::new(udp_rx, recv_share, pkt_tx).await });
 
     (
         RudpSender {
@@ -146,9 +146,10 @@ pub fn new<S: UdpSender, R: UdpReceiver>(
 
 // connect
 
-fn main() -> io::Result<()> {
+#[tokio::main]
+async fn main() -> io::Result<()> {
     //println!("{}", x.deep_size_of());
-    let (tx, rx) = connect("127.0.0.1:30000")?;
+    let (tx, rx) = connect("127.0.0.1:30000").await?;
 
     let mut mtpkt = vec![];
     mtpkt.write_u16::<BigEndian>(2)?; // high level type
@@ -163,9 +164,10 @@ fn main() -> io::Result<()> {
         unrel: true,
         chan: 1,
         data: &mtpkt,
-    })?;
+    })
+    .await?;
 
-    while let Ok(result) = rx.recv() {
+    while let Some(result) = rx.recv().await {
         match result {
             Ok(pkt) => {
                 io::stdout().write(pkt.data.as_slice())?;