util: change udp feat to net

tokio-util/Cargo.toml

@@ -24,9 +24,9 @@ categories = ["asynchronous"]
 default = []
 
 # Shorthand for enabling everything
-full = ["codec", "compat", "io", "time", "udp"]
+full = ["codec", "compat", "io", "time", "net"]
 
-udp = ["tokio/net"]
+net = ["tokio/net"]
 compat = ["futures-io",]
 codec = ["tokio/io-util", "tokio/stream"]
 time = ["tokio/time","slab"]

tokio-util/src/cfg.rs

@@ -18,11 +18,11 @@ macro_rules! cfg_compat {
     }
 }
 
-macro_rules! cfg_udp {
+macro_rules! cfg_net {
     ($($item:item)*) => {
         $(
-            #[cfg(all(feature = "udp", feature = "codec"))]
-            #[cfg_attr(docsrs, doc(cfg(all(feature = "udp", feature = "codec"))))]
+            #[cfg(all(feature = "net", feature = "codec"))]
+            #[cfg_attr(docsrs, doc(cfg(all(feature = "net", feature = "codec"))))]
             $item
         )*
     }

tokio-util/src/lib.rs

@@ -30,7 +30,7 @@ cfg_codec! {
     pub mod codec;
 }
 
-cfg_udp! {
+cfg_net! {
     pub mod udp;
 }
 

tokio-util/src/udp/frame.rs

@@ -6,7 +6,6 @@ use bytes::{BufMut, BytesMut};
 use futures_core::ready;
 use futures_sink::Sink;
 use std::io;
-use std::mem::MaybeUninit;
 use std::net::{Ipv4Addr, SocketAddr, SocketAddrV4};
 use std::pin::Pin;
 use std::task::{Context, Poll};
@@ -72,8 +71,7 @@ impl<C: Decoder + Unpin> Stream for UdpFramed<C> {
             let addr = unsafe {
                 // Convert `&mut [MaybeUnit<u8>]` to `&mut [u8]` because we will be
                 // writing to it via `poll_recv_from` and therefore initializing the memory.
-                let buf: &mut [u8] =
-                    &mut *(pin.rd.bytes_mut() as *mut [MaybeUninit<u8>] as *mut [u8]);
+                let buf: &mut [u8] = &mut *(pin.rd.bytes_mut() as *mut _ as *mut [u8]);
                 let mut read = ReadBuf::new(buf);
                 let res = ready!(Pin::new(&mut pin.socket).poll_recv_from(cx, &mut read));