refactor Payload stream

.travis.yml

@@ -1,6 +1,7 @@
 language: rust
 
 rust:
+  - 1.20.0
   - stable
   - beta
   - nightly

CHANGES.md

@@ -9,6 +9,8 @@
 
 * Refactor `HttpContext::write`
 
+* Refactor `Payload` stream
+
 * Re-use `BinaryBody` for `Frame::Payload`
 
 * Fix disconnection handling.

examples/multipart/Cargo.toml

@@ -9,6 +9,6 @@ path = "src/main.rs"
 
 [dependencies]
 env_logger = "*"
-actix = "0.3"
-#actix = { git = "https://github.com/actix/actix.git" }
+#actix = "0.3"
+actix = { git = "https://github.com/actix/actix.git" }
 actix-web = { path = "../../" }

examples/websocket-chat/Cargo.toml

@@ -24,6 +24,6 @@ serde = "1.0"
 serde_json = "1.0"
 serde_derive = "1.0"
 
-actix = "0.3"
-#actix = { git = "https://github.com/actix/actix.git" }
+#actix = "0.3"
+actix = { git = "https://github.com/actix/actix.git" }
 actix-web = { path = "../../" }

src/httprequest.rs

@@ -268,7 +268,6 @@ impl Future for UrlEncoded {
     fn poll(&mut self) -> Poll<Self::Item, Self::Error> {
         loop {
             return match self.pl.poll() {
-                Err(_) => unreachable!(),
                 Ok(Async::NotReady) => Ok(Async::NotReady),
                 Ok(Async::Ready(None)) => {
                     let mut m = HashMap::new();
@@ -277,16 +276,14 @@ impl Future for UrlEncoded {
                     }
                     Ok(Async::Ready(m))
                 },
-                Ok(Async::Ready(Some(item))) => match item {
-                    Ok(bytes) => {
-                        self.body.extend(bytes);
+                Ok(Async::Ready(Some(item))) => {
+                    self.body.extend(item.0);
                     continue
                 },
                 Err(err) => Err(err),
             }
         }
     }
-    }
 }
 
 #[cfg(test)]

src/multipart.rs

@@ -512,18 +512,18 @@ impl InnerField {
             Ok(Async::Ready(None))
         } else {
             match payload.readany() {
-                Async::NotReady => Ok(Async::NotReady),
-                Async::Ready(None) => Ok(Async::Ready(None)),
-                Async::Ready(Some(Ok(mut chunk))) => {
-                    let len = cmp::min(chunk.len() as u64, *size);
+                Ok(Async::NotReady) => Ok(Async::NotReady),
+                Ok(Async::Ready(None)) => Ok(Async::Ready(None)),
+                Ok(Async::Ready(Some(mut chunk))) => {
+                    let len = cmp::min(chunk.0.len() as u64, *size);
                     *size -= len;
-                    let ch = chunk.split_to(len as usize);
-                    if !chunk.is_empty() {
-                        payload.unread_data(chunk);
+                    let ch = chunk.0.split_to(len as usize);
+                    if !chunk.0.is_empty() {
+                        payload.unread_data(chunk.0);
                     }
                     Ok(Async::Ready(Some(ch)))
                 },
-                Async::Ready(Some(Err(err))) => Err(err.into())
+                Err(err) => Err(err.into())
             }
         }
     }

src/payload.rs

@@ -8,10 +8,17 @@ use bytes::{Bytes, BytesMut};
 use futures::{Async, Poll, Stream};
 use futures::task::{Task, current as current_task};
 
+use actix::ResponseType;
+
 const MAX_PAYLOAD_SIZE: usize = 65_536; // max buffer size 64k
 
 /// Just Bytes object
-pub type PayloadItem = Result<Bytes, PayloadError>;
+pub struct PayloadItem(pub Bytes);
+
+impl ResponseType for PayloadItem {
+    type Item = ();
+    type Error = ();
+}
 
 #[derive(Debug)]
 /// A set of error that can occur during payload parsing.
@@ -92,7 +99,7 @@ impl Payload {
 
     /// Get first available chunk of data.
     /// Returns Some(PayloadItem) as chunk, `None` indicates eof.
-    pub fn readany(&mut self) -> Async<Option<PayloadItem>> {
+    pub fn readany(&mut self) -> Poll<Option<PayloadItem>, PayloadError> {
         self.inner.borrow_mut().readany()
     }
 
@@ -128,10 +135,10 @@ impl Payload {
 
 impl Stream for Payload {
     type Item = PayloadItem;
-    type Error = ();
+    type Error = PayloadError;
 
-    fn poll(&mut self) -> Poll<Option<PayloadItem>, ()> {
-        Ok(self.readany())
+    fn poll(&mut self) -> Poll<Option<PayloadItem>, PayloadError> {
+        self.readany()
     }
 }
 
@@ -244,17 +251,17 @@ impl Inner {
         self.len
     }
 
-    fn readany(&mut self) -> Async<Option<PayloadItem>> {
+    fn readany(&mut self) -> Poll<Option<PayloadItem>, PayloadError> {
         if let Some(data) = self.items.pop_front() {
             self.len -= data.len();
-            Async::Ready(Some(Ok(data)))
+            Ok(Async::Ready(Some(PayloadItem(data))))
         } else if self.eof {
-            Async::Ready(None)
+            Ok(Async::Ready(None))
         } else if let Some(err) = self.err.take() {
-            Async::Ready(Some(Err(err)))
+            Err(err)
         } else {
             self.task = Some(current_task());
-            Async::NotReady
+            Ok(Async::NotReady)
         }
     }
 
@@ -391,7 +398,7 @@ mod tests {
             assert_eq!(payload.len(), 0);
 
             match payload.readany() {
-                Async::NotReady => (),
+                Ok(Async::NotReady) => (),
                 _ => panic!("error"),
             }
 
@@ -406,7 +413,7 @@ mod tests {
             let (mut sender, mut payload) = Payload::new(false);
 
             match payload.readany() {
-                Async::NotReady => (),
+                Ok(Async::NotReady) => (),
                 _ => panic!("error"),
             }
 
@@ -418,7 +425,7 @@ mod tests {
             assert!(!payload.eof());
 
             match payload.readany() {
-                Async::Ready(Some(data)) => assert_eq!(&data.unwrap(), "data"),
+                Ok(Async::Ready(Some(data))) => assert_eq!(&data.0, "data"),
                 _ => panic!("error"),
             }
             assert!(payload.is_empty());
@@ -426,7 +433,7 @@ mod tests {
             assert_eq!(payload.len(), 0);
 
             match payload.readany() {
-                Async::Ready(None) => (),
+                Ok(Async::Ready(None)) => (),
                 _ => panic!("error"),
             }
             let res: Result<(), ()> = Ok(());
@@ -440,13 +447,13 @@ mod tests {
             let (mut sender, mut payload) = Payload::new(false);
 
             match payload.readany() {
-                Async::NotReady => (),
+                Ok(Async::NotReady) => (),
                 _ => panic!("error"),
             }
 
             sender.set_error(PayloadError::Incomplete);
             match payload.readany() {
-                Async::Ready(Some(data)) => assert!(data.is_err()),
+                Err(_) => (),
                 _ => panic!("error"),
             }
             let res: Result<(), ()> = Ok(());
@@ -469,7 +476,7 @@ mod tests {
             assert_eq!(payload.len(), 10);
 
             match payload.readany() {
-                Async::Ready(Some(data)) => assert_eq!(&data.unwrap(), "line1"),
+                Ok(Async::Ready(Some(data))) => assert_eq!(&data.0, "line1"),
                 _ => panic!("error"),
             }
             assert!(!payload.is_empty());
@@ -587,7 +594,7 @@ mod tests {
             assert_eq!(payload.len(), 4);
 
             match payload.readany() {
-                Async::Ready(Some(data)) => assert_eq!(&data.unwrap(), "data"),
+                Ok(Async::Ready(Some(data))) => assert_eq!(&data.0, "data"),
                 _ => panic!("error"),
             }
 

src/server.rs

@@ -86,7 +86,7 @@ impl<H: HttpHandler> HttpServer<TcpStream, net::SocketAddr, H> {
         if let Ok(iter) = addr.to_socket_addrs() {
             for addr in iter {
                 match TcpListener::bind(&addr, Arbiter::handle()) {
-                    Ok(tcp) => addrs.push(tcp),
+                    Ok(tcp) => addrs.push((addr, tcp)),
                     Err(e) => err = Some(e),
                 }
             }
@@ -99,7 +99,8 @@ impl<H: HttpHandler> HttpServer<TcpStream, net::SocketAddr, H> {
             }
         } else {
             Ok(HttpServer::create(move |ctx| {
-                for tcp in addrs {
+                for (addr, tcp) in addrs {
+                    info!("Starting http server on {}", addr);
                     ctx.add_stream(tcp.incoming().map(|(t, a)| IoStream(t, a)));
                 }
                 self

src/ws.rs

@@ -196,19 +196,19 @@ impl Stream for WsStream {
         if !self.closed {
             loop {
                 match self.rx.readany() {
-                    Async::Ready(Some(Ok(chunk))) => {
-                        self.buf.extend(chunk)
+                    Ok(Async::Ready(Some(chunk))) => {
+                        self.buf.extend(chunk.0)
                     }
-                    Async::Ready(Some(Err(_))) => {
-                        self.closed = true;
-                        break;
-                    }
-                    Async::Ready(None) => {
+                    Ok(Async::Ready(None)) => {
                         done = true;
                         self.closed = true;
                         break;
                     }
-                    Async::NotReady => break,
+                    Ok(Async::NotReady) => break,
+                    Err(_) => {
+                        self.closed = true;
+                        break;
+                    }
                 }
             }
         }