add support for tokio & improve net crate api

1 files changed, 137 insertions, 56 deletions

diff --git a/net/src/transports/unix.rs b/net/src/transports/unix.rs
index 494e104..bafebaf 100644
--- a/net/src/transports/unix.rs
+++ b/net/src/transports/unix.rs
@@ -1,111 +1,192 @@
 use async_trait::async_trait;
+use futures_util::SinkExt;
 
-use smol::{
-    io::{split, AsyncReadExt, AsyncWriteExt, ReadHalf, WriteHalf},
+use karyon_core::async_runtime::{
+    io::{split, ReadHalf, WriteHalf},
     lock::Mutex,
-    net::unix::{UnixListener, UnixStream},
+    net::{UnixListener as AsyncUnixListener, UnixStream},
 };
 
 use crate::{
-    connection::{Connection, ToConn},
+    codec::Codec,
+    connection::{Conn, Connection, ToConn},
     endpoint::Endpoint,
-    listener::{ConnListener, ToListener},
+    listener::{ConnListener, Listener, ToListener},
+    stream::{ReadStream, WriteStream},
     Error, Result,
 };
 
+/// Unix Conn config
+#[derive(Clone, Default)]
+pub struct UnixConfig {}
+
 /// Unix domain socket implementation of the [`Connection`] trait.
-pub struct UnixConn {
-    inner: UnixStream,
-    read: Mutex<ReadHalf<UnixStream>>,
-    write: Mutex<WriteHalf<UnixStream>>,
+pub struct UnixConn<C> {
+    read_stream: Mutex<ReadStream<ReadHalf<UnixStream>, C>>,
+    write_stream: Mutex<WriteStream<WriteHalf<UnixStream>, C>>,
+    peer_endpoint: Option<Endpoint>,
+    local_endpoint: Option<Endpoint>,
 }
 
-impl UnixConn {
-    /// Creates a new UnixConn
-    pub fn new(conn: UnixStream) -> Self {
-        let (read, write) = split(conn.clone());
+impl<C> UnixConn<C>
+where
+    C: Codec + Clone,
+{
+    /// Creates a new TcpConn
+    pub fn new(conn: UnixStream, codec: C) -> Self {
+        let peer_endpoint = conn
+            .peer_addr()
+            .and_then(|a| {
+                Ok(Endpoint::new_unix_addr(
+                    a.as_pathname()
+                        .ok_or(std::io::ErrorKind::AddrNotAvailable)?,
+                ))
+            })
+            .ok();
+        let local_endpoint = conn
+            .local_addr()
+            .and_then(|a| {
+                Ok(Endpoint::new_unix_addr(
+                    a.as_pathname()
+                        .ok_or(std::io::ErrorKind::AddrNotAvailable)?,
+                ))
+            })
+            .ok();
+
+        let (read, write) = split(conn);
+        let read_stream = Mutex::new(ReadStream::new(read, codec.clone()));
+        let write_stream = Mutex::new(WriteStream::new(write, codec));
         Self {
-            inner: conn,
-            read: Mutex::new(read),
-            write: Mutex::new(write),
+            read_stream,
+            write_stream,
+            peer_endpoint,
+            local_endpoint,
         }
     }
 }
 
 #[async_trait]
-impl Connection for UnixConn {
+impl<C> Connection for UnixConn<C>
+where
+    C: Codec + Clone,
+{
+    type Item = C::Item;
     fn peer_endpoint(&self) -> Result<Endpoint> {
-        Ok(Endpoint::new_unix_addr(&self.inner.peer_addr()?))
+        self.peer_endpoint
+            .clone()
+            .ok_or(Error::IO(std::io::ErrorKind::AddrNotAvailable.into()))
     }
 
     fn local_endpoint(&self) -> Result<Endpoint> {
-        Ok(Endpoint::new_unix_addr(&self.inner.local_addr()?))
+        self.local_endpoint
+            .clone()
+            .ok_or(Error::IO(std::io::ErrorKind::AddrNotAvailable.into()))
     }
 
-    async fn read(&self, buf: &mut [u8]) -> Result<usize> {
-        self.read.lock().await.read(buf).await.map_err(Error::from)
+    async fn recv(&self) -> Result<Self::Item> {
+        self.read_stream.lock().await.recv().await
     }
 
-    async fn write(&self, buf: &[u8]) -> Result<usize> {
-        self.write
-            .lock()
-            .await
-            .write(buf)
-            .await
-            .map_err(Error::from)
+    async fn send(&self, msg: Self::Item) -> Result<()> {
+        self.write_stream.lock().await.send(msg).await
+    }
+}
+
+#[allow(dead_code)]
+pub struct UnixListener<C> {
+    inner: AsyncUnixListener,
+    config: UnixConfig,
+    codec: C,
+}
+
+impl<C> UnixListener<C>
+where
+    C: Codec + Clone,
+{
+    pub fn new(listener: AsyncUnixListener, config: UnixConfig, codec: C) -> Self {
+        Self {
+            inner: listener,
+            config,
+            codec,
+        }
     }
 }
 
 #[async_trait]
-impl ConnListener for UnixListener {
+impl<C> ConnListener for UnixListener<C>
+where
+    C: Codec + Clone,
+{
+    type Item = C::Item;
     fn local_endpoint(&self) -> Result<Endpoint> {
-        Ok(Endpoint::new_unix_addr(&self.local_addr()?))
+        self.inner
+            .local_addr()
+            .and_then(|a| {
+                Ok(Endpoint::new_unix_addr(
+                    a.as_pathname()
+                        .ok_or(std::io::ErrorKind::AddrNotAvailable)?,
+                ))
+            })
+            .map_err(Error::from)
     }
 
-    async fn accept(&self) -> Result<Box<dyn Connection>> {
-        let (conn, _) = self.accept().await?;
-        Ok(Box::new(UnixConn::new(conn)))
+    async fn accept(&self) -> Result<Conn<C::Item>> {
+        let (conn, _) = self.inner.accept().await?;
+        Ok(Box::new(UnixConn::new(conn, self.codec.clone())))
     }
 }
 
 /// Connects to the given Unix socket path.
-pub async fn dial(path: &String) -> Result<UnixConn> {
+pub async fn dial<C>(endpoint: &Endpoint, _config: UnixConfig, codec: C) -> Result<UnixConn<C>>
+where
+    C: Codec + Clone,
+{
+    let path: std::path::PathBuf = endpoint.clone().try_into()?;
     let conn = UnixStream::connect(path).await?;
-    Ok(UnixConn::new(conn))
+    Ok(UnixConn::new(conn, codec))
 }
 
 /// Listens on the given Unix socket path.
-pub fn listen(path: &String) -> Result<UnixListener> {
-    let listener = UnixListener::bind(path)?;
-    Ok(listener)
-}
-
-impl From<UnixStream> for Box<dyn Connection> {
-    fn from(conn: UnixStream) -> Self {
-        Box::new(UnixConn::new(conn))
-    }
+pub fn listen<C>(endpoint: &Endpoint, config: UnixConfig, codec: C) -> Result<UnixListener<C>>
+where
+    C: Codec + Clone,
+{
+    let path: std::path::PathBuf = endpoint.clone().try_into()?;
+    let listener = AsyncUnixListener::bind(path)?;
+    Ok(UnixListener::new(listener, config, codec))
 }
 
-impl From<UnixListener> for Box<dyn ConnListener> {
-    fn from(listener: UnixListener) -> Self {
+// impl From<UnixStream> for Box<dyn Connection> {
+//     fn from(conn: UnixStream) -> Self {
+//         Box::new(UnixConn::new(conn))
+//     }
+// }
+
+impl<C> From<UnixListener<C>> for Listener<C::Item>
+where
+    C: Codec + Clone,
+{
+    fn from(listener: UnixListener<C>) -> Self {
         Box::new(listener)
     }
 }
 
-impl ToConn for UnixStream {
-    fn to_conn(self) -> Box<dyn Connection> {
-        self.into()
-    }
-}
-
-impl ToConn for UnixConn {
-    fn to_conn(self) -> Box<dyn Connection> {
+impl<C> ToConn for UnixConn<C>
+where
+    C: Codec + Clone,
+{
+    type Item = C::Item;
+    fn to_conn(self) -> Conn<Self::Item> {
         Box::new(self)
     }
 }
 
-impl ToListener for UnixListener {
-    fn to_listener(self) -> Box<dyn ConnListener> {
+impl<C> ToListener for UnixListener<C>
+where
+    C: Codec + Clone,
+{
+    type Item = C::Item;
+    fn to_listener(self) -> Listener<Self::Item> {
         self.into()
     }
 }