Refresh: Update Result<T, B> to be Result<(T,B), Error<B>

examples/cat.rs

@@ -29,9 +29,7 @@ fn main() {
 
         loop {
             // Read a chunk
-            let (res, b) = file.read_at(buf, pos).await;
-            let n = res.unwrap();
-
+            let (n, b) = file.read_at(buf, pos).await.unwrap();
             if n == 0 {
                 break;
             }

examples/mix.rs

@@ -34,15 +34,14 @@ fn main() {
 
                 loop {
                     // Read a chunk
-                    let (res, b) = file.read_at(buf, pos).await;
-                    let n = res.unwrap();
+                    let (n, b) = file.read_at(buf, pos).await.unwrap();
 
                     if n == 0 {
                         break;
                     }
 
-                    let (res, b) = socket.write(b).submit().await;
-                    pos += res.unwrap() as u64;
+                    let (n, b) = socket.write(b).submit().await.unwrap();
+                    pos += n as u64;
 
                     buf = b;
                 }

examples/tcp_listener.rs

@@ -29,16 +29,14 @@ fn main() {
 
                 let mut buf = vec![0u8; 4096];
                 loop {
-                    let (result, nbuf) = stream.read(buf).await;
+                    let (read, nbuf) = stream.read(buf).await.unwrap();
                     buf = nbuf;
-                    let read = result.unwrap();
                     if read == 0 {
                         println!("{} closed, {} total ping-ponged", socket_addr, n);
                         break;
                     }
 
-                    let (res, slice) = stream.write_all(buf.slice(..read)).await;
-                    let _ = res.unwrap();
+                    let (_, slice) = stream.write_all(buf.slice(..read)).await.unwrap();
                     buf = slice.into_inner();
                     println!("{} all {} bytes ping-ponged", socket_addr, read);
                     n += read;

examples/tcp_listener_fixed_buffers.rs

@@ -79,17 +79,14 @@ async fn echo_handler<T: IoBufMut>(
         // Each time through the loop, use fbuf and then get it back for the next
         // iteration.
 
-        let (result, fbuf1) = stream.read_fixed(fbuf).await;
+        let (read, fbuf1) = stream.read_fixed(fbuf).await.unwrap();
         fbuf = {
-            let read = result.unwrap();
             if read == 0 {
                 break;
             }
             assert_eq!(4096, fbuf1.len()); // To prove a point.
 
-            let (res, nslice) = stream.write_fixed_all(fbuf1.slice(..read)).await;
-
-            let _ = res.unwrap();
+            let (_, nslice) = stream.write_fixed_all(fbuf1.slice(..read)).await.unwrap();
             println!("peer {} all {} bytes ping-ponged", peer, read);
             n += read;
 

examples/tcp_stream.rs

@@ -15,11 +15,10 @@ fn main() {
         let stream = TcpStream::connect(socket_addr).await.unwrap();
         let buf = vec![1u8; 128];
 
-        let (result, buf) = stream.write(buf).submit().await;
-        println!("written: {}", result.unwrap());
+        let (n, buf) = stream.write(buf).submit().await.unwrap();
+        println!("written: {}", n);
 
-        let (result, buf) = stream.read(buf).await;
-        let read = result.unwrap();
+        let (read, buf) = stream.read(buf).await.unwrap();
         println!("read: {:?}", &buf[..read]);
     });
 }

examples/udp_socket.rs

@@ -15,12 +15,11 @@ fn main() {
 
         let buf = vec![0u8; 128];
 
-        let (result, mut buf) = socket.recv_from(buf).await;
-        let (read, socket_addr) = result.unwrap();
+        let ((read, socket_addr), mut buf) = socket.recv_from(buf).await.unwrap();
         buf.resize(read, 0);
         println!("received from {}: {:?}", socket_addr, &buf[..]);
 
-        let (result, _buf) = socket.send_to(buf, socket_addr).await;
-        println!("sent to {}: {}", socket_addr, result.unwrap());
+        let (n, _buf) = socket.send_to(buf, socket_addr).await.unwrap();
+        println!("sent to {}: {}", socket_addr, n);
     });
 }

examples/unix_listener.rs

@@ -20,11 +20,10 @@ fn main() {
             tokio_uring::spawn(async move {
                 let buf = vec![1u8; 128];
 
-                let (result, buf) = stream.write(buf).submit().await;
-                println!("written to {}: {}", &socket_addr, result.unwrap());
+                let (n, buf) = stream.write(buf).submit().await.unwrap();
+                println!("written to {}: {}", &socket_addr, n);
 
-                let (result, buf) = stream.read(buf).await;
-                let read = result.unwrap();
+                let (read, buf) = stream.read(buf).await.unwrap();
                 println!("read from {}: {:?}", &socket_addr, &buf[..read]);
             });
         }

examples/unix_stream.rs

@@ -15,11 +15,10 @@ fn main() {
         let stream = UnixStream::connect(socket_addr).await.unwrap();
         let buf = vec![1u8; 128];
 
-        let (result, buf) = stream.write(buf).submit().await;
-        println!("written: {}", result.unwrap());
+        let (n, buf) = stream.write(buf).submit().await.unwrap();
+        println!("written: {}", n);
 
-        let (result, buf) = stream.read(buf).await;
-        let read = result.unwrap();
+        let (read, buf) = stream.read(buf).await.unwrap();
         println!("read: {:?}", &buf[..read]);
     });
 }

examples/wrk-bench.rs

@@ -21,8 +21,7 @@ fn main() -> io::Result<()> {
                     let (stream, _) = listener.accept().await?;
 
                     tokio_uring::spawn(async move {
-                        let (result, _) = stream.write(RESPONSE).submit().await;
-
+                        let result = stream.write(RESPONSE).submit().await;
                         if let Err(err) = result {
                             eprintln!("Client connection failed: {}", err);
                         }