std: reorganize pipe implementations

library/std/src/io/pipe.rs

@@ -1,5 +1,5 @@
 use crate::io;
-use crate::sys::anonymous_pipe::{AnonPipe, pipe as pipe_inner};
+use crate::sys::pipe as imp;
 use crate::sys_common::{FromInner, IntoInner};
 
 /// Creates an anonymous pipe.
@@ -84,39 +84,39 @@ use crate::sys_common::{FromInner, IntoInner};
 #[stable(feature = "anonymous_pipe", since = "1.87.0")]
 #[inline]
 pub fn pipe() -> io::Result<(PipeReader, PipeWriter)> {
-    pipe_inner().map(|(reader, writer)| (PipeReader(reader), PipeWriter(writer)))
+    imp::pipe().map(|(reader, writer)| (PipeReader(reader), PipeWriter(writer)))
 }
 
 /// Read end of an anonymous pipe.
 #[stable(feature = "anonymous_pipe", since = "1.87.0")]
 #[derive(Debug)]
-pub struct PipeReader(pub(crate) AnonPipe);
+pub struct PipeReader(pub(crate) imp::Pipe);
 
 /// Write end of an anonymous pipe.
 #[stable(feature = "anonymous_pipe", since = "1.87.0")]
 #[derive(Debug)]
-pub struct PipeWriter(pub(crate) AnonPipe);
+pub struct PipeWriter(pub(crate) imp::Pipe);
 
-impl FromInner<AnonPipe> for PipeReader {
-    fn from_inner(inner: AnonPipe) -> Self {
+impl FromInner<imp::Pipe> for PipeReader {
+    fn from_inner(inner: imp::Pipe) -> Self {
         Self(inner)
     }
 }
 
-impl IntoInner<AnonPipe> for PipeReader {
-    fn into_inner(self) -> AnonPipe {
+impl IntoInner<imp::Pipe> for PipeReader {
+    fn into_inner(self) -> imp::Pipe {
         self.0
     }
 }
 
-impl FromInner<AnonPipe> for PipeWriter {
-    fn from_inner(inner: AnonPipe) -> Self {
+impl FromInner<imp::Pipe> for PipeWriter {
+    fn from_inner(inner: imp::Pipe) -> Self {
         Self(inner)
     }
 }
 
-impl IntoInner<AnonPipe> for PipeWriter {
-    fn into_inner(self) -> AnonPipe {
+impl IntoInner<imp::Pipe> for PipeWriter {
+    fn into_inner(self) -> imp::Pipe {
         self.0
     }
 }

library/std/src/os/unix/process.rs

@@ -8,6 +8,7 @@ use crate::ffi::OsStr;
 use crate::os::unix::io::{AsFd, AsRawFd, BorrowedFd, FromRawFd, IntoRawFd, OwnedFd, RawFd};
 use crate::path::Path;
 use crate::sealed::Sealed;
+use crate::sys::process::ChildPipe;
 use crate::sys_common::{AsInner, AsInnerMut, FromInner, IntoInner};
 use crate::{io, process, sys};
 
@@ -506,7 +507,7 @@ impl From<crate::process::ChildStdin> for OwnedFd {
     /// Takes ownership of a [`ChildStdin`](crate::process::ChildStdin)'s file descriptor.
     #[inline]
     fn from(child_stdin: crate::process::ChildStdin) -> OwnedFd {
-        child_stdin.into_inner().into_inner().into_inner()
+        child_stdin.into_inner().into_inner()
     }
 }
 
@@ -518,8 +519,7 @@ impl From<crate::process::ChildStdin> for OwnedFd {
 impl From<OwnedFd> for process::ChildStdin {
     #[inline]
     fn from(fd: OwnedFd) -> process::ChildStdin {
-        let fd = sys::fd::FileDesc::from_inner(fd);
-        let pipe = sys::pipe::AnonPipe::from_inner(fd);
+        let pipe = ChildPipe::from_inner(fd);
         process::ChildStdin::from_inner(pipe)
     }
 }
@@ -537,7 +537,7 @@ impl From<crate::process::ChildStdout> for OwnedFd {
     /// Takes ownership of a [`ChildStdout`](crate::process::ChildStdout)'s file descriptor.
     #[inline]
     fn from(child_stdout: crate::process::ChildStdout) -> OwnedFd {
-        child_stdout.into_inner().into_inner().into_inner()
+        child_stdout.into_inner().into_inner()
     }
 }
 
@@ -549,8 +549,7 @@ impl From<crate::process::ChildStdout> for OwnedFd {
 impl From<OwnedFd> for process::ChildStdout {
     #[inline]
     fn from(fd: OwnedFd) -> process::ChildStdout {
-        let fd = sys::fd::FileDesc::from_inner(fd);
-        let pipe = sys::pipe::AnonPipe::from_inner(fd);
+        let pipe = ChildPipe::from_inner(fd);
         process::ChildStdout::from_inner(pipe)
     }
 }
@@ -568,7 +567,7 @@ impl From<crate::process::ChildStderr> for OwnedFd {
     /// Takes ownership of a [`ChildStderr`](crate::process::ChildStderr)'s file descriptor.
     #[inline]
     fn from(child_stderr: crate::process::ChildStderr) -> OwnedFd {
-        child_stderr.into_inner().into_inner().into_inner()
+        child_stderr.into_inner().into_inner()
     }
 }
 
@@ -580,8 +579,7 @@ impl From<crate::process::ChildStderr> for OwnedFd {
 impl From<OwnedFd> for process::ChildStderr {
     #[inline]
     fn from(fd: OwnedFd) -> process::ChildStderr {
-        let fd = sys::fd::FileDesc::from_inner(fd);
-        let pipe = sys::pipe::AnonPipe::from_inner(fd);
+        let pipe = ChildPipe::from_inner(fd);
         process::ChildStderr::from_inner(pipe)
     }
 }

library/std/src/os/windows/process.rs

@@ -117,7 +117,7 @@ impl IntoRawHandle for process::ChildStderr {
 impl From<OwnedHandle> for process::ChildStdin {
     fn from(handle: OwnedHandle) -> process::ChildStdin {
         let handle = sys::handle::Handle::from_inner(handle);
-        let pipe = sys::pipe::AnonPipe::from_inner(handle);
+        let pipe = sys::process::ChildPipe::from_inner(handle);
         process::ChildStdin::from_inner(pipe)
     }
 }
@@ -130,7 +130,7 @@ impl From<OwnedHandle> for process::ChildStdin {
 impl From<OwnedHandle> for process::ChildStdout {
     fn from(handle: OwnedHandle) -> process::ChildStdout {
         let handle = sys::handle::Handle::from_inner(handle);
-        let pipe = sys::pipe::AnonPipe::from_inner(handle);
+        let pipe = sys::process::ChildPipe::from_inner(handle);
         process::ChildStdout::from_inner(pipe)
     }
 }
@@ -143,7 +143,7 @@ impl From<OwnedHandle> for process::ChildStdout {
 impl From<OwnedHandle> for process::ChildStderr {
     fn from(handle: OwnedHandle) -> process::ChildStderr {
         let handle = sys::handle::Handle::from_inner(handle);
-        let pipe = sys::pipe::AnonPipe::from_inner(handle);
+        let pipe = sys::process::ChildPipe::from_inner(handle);
         process::ChildStderr::from_inner(pipe)
     }
 }

library/std/src/process.rs

@@ -166,7 +166,6 @@ use crate::io::prelude::*;
 use crate::io::{self, BorrowedCursor, IoSlice, IoSliceMut};
 use crate::num::NonZero;
 use crate::path::Path;
-use crate::sys::pipe::{AnonPipe, read2};
 use crate::sys::process as imp;
 use crate::sys_common::{AsInner, AsInnerMut, FromInner, IntoInner};
 use crate::{fmt, fs, str};
@@ -300,9 +299,9 @@ impl fmt::Debug for Child {
 ///
 /// Used to pass pipe handles between this module and [`imp`].
 pub(crate) struct StdioPipes {
-    pub stdin: Option<AnonPipe>,
-    pub stdout: Option<AnonPipe>,
-    pub stderr: Option<AnonPipe>,
+    pub stdin: Option<imp::ChildPipe>,
+    pub stdout: Option<imp::ChildPipe>,
+    pub stderr: Option<imp::ChildPipe>,
 }
 
 /// A handle to a child process's standard input (stdin).
@@ -317,7 +316,7 @@ pub(crate) struct StdioPipes {
 /// [dropped]: Drop
 #[stable(feature = "process", since = "1.0.0")]
 pub struct ChildStdin {
-    inner: AnonPipe,
+    inner: imp::ChildPipe,
 }
 
 // In addition to the `impl`s here, `ChildStdin` also has `impl`s for
@@ -366,21 +365,21 @@ impl Write for &ChildStdin {
     }
 }
 
-impl AsInner<AnonPipe> for ChildStdin {
+impl AsInner<imp::ChildPipe> for ChildStdin {
     #[inline]
-    fn as_inner(&self) -> &AnonPipe {
+    fn as_inner(&self) -> &imp::ChildPipe {
         &self.inner
     }
 }
 
-impl IntoInner<AnonPipe> for ChildStdin {
-    fn into_inner(self) -> AnonPipe {
+impl IntoInner<imp::ChildPipe> for ChildStdin {
+    fn into_inner(self) -> imp::ChildPipe {
         self.inner
     }
 }
 
-impl FromInner<AnonPipe> for ChildStdin {
-    fn from_inner(pipe: AnonPipe) -> ChildStdin {
+impl FromInner<imp::ChildPipe> for ChildStdin {
+    fn from_inner(pipe: imp::ChildPipe) -> ChildStdin {
         ChildStdin { inner: pipe }
     }
 }
@@ -403,7 +402,7 @@ impl fmt::Debug for ChildStdin {
 /// [dropped]: Drop
 #[stable(feature = "process", since = "1.0.0")]
 pub struct ChildStdout {
-    inner: AnonPipe,
+    inner: imp::ChildPipe,
 }
 
 // In addition to the `impl`s here, `ChildStdout` also has `impl`s for
@@ -436,21 +435,21 @@ impl Read for ChildStdout {
     }
 }
 
-impl AsInner<AnonPipe> for ChildStdout {
+impl AsInner<imp::ChildPipe> for ChildStdout {
     #[inline]
-    fn as_inner(&self) -> &AnonPipe {
+    fn as_inner(&self) -> &imp::ChildPipe {
         &self.inner
     }
 }
 
-impl IntoInner<AnonPipe> for ChildStdout {
-    fn into_inner(self) -> AnonPipe {
+impl IntoInner<imp::ChildPipe> for ChildStdout {
+    fn into_inner(self) -> imp::ChildPipe {
         self.inner
     }
 }
 
-impl FromInner<AnonPipe> for ChildStdout {
-    fn from_inner(pipe: AnonPipe) -> ChildStdout {
+impl FromInner<imp::ChildPipe> for ChildStdout {
+    fn from_inner(pipe: imp::ChildPipe) -> ChildStdout {
         ChildStdout { inner: pipe }
     }
 }
@@ -473,7 +472,7 @@ impl fmt::Debug for ChildStdout {
 /// [dropped]: Drop
 #[stable(feature = "process", since = "1.0.0")]
 pub struct ChildStderr {
-    inner: AnonPipe,
+    inner: imp::ChildPipe,
 }
 
 // In addition to the `impl`s here, `ChildStderr` also has `impl`s for
@@ -506,21 +505,21 @@ impl Read for ChildStderr {
     }
 }
 
-impl AsInner<AnonPipe> for ChildStderr {
+impl AsInner<imp::ChildPipe> for ChildStderr {
     #[inline]
-    fn as_inner(&self) -> &AnonPipe {
+    fn as_inner(&self) -> &imp::ChildPipe {
         &self.inner
     }
 }
 
-impl IntoInner<AnonPipe> for ChildStderr {
-    fn into_inner(self) -> AnonPipe {
+impl IntoInner<imp::ChildPipe> for ChildStderr {
+    fn into_inner(self) -> imp::ChildPipe {
         self.inner
     }
 }
 
-impl FromInner<AnonPipe> for ChildStderr {
-    fn from_inner(pipe: AnonPipe) -> ChildStderr {
+impl FromInner<imp::ChildPipe> for ChildStderr {
+    fn from_inner(pipe: imp::ChildPipe) -> ChildStderr {
         ChildStderr { inner: pipe }
     }
 }
@@ -2356,7 +2355,7 @@ impl Child {
                 res.unwrap();
             }
             (Some(out), Some(err)) => {
-                let res = read2(out.inner, &mut stdout, err.inner, &mut stderr);
+                let res = imp::read_output(out.inner, &mut stdout, err.inner, &mut stderr);
                 res.unwrap();
             }
         }

library/std/src/sys/mod.rs

@@ -13,7 +13,6 @@ mod pal;
 mod alloc;
 mod personality;
 
-pub mod anonymous_pipe;
 pub mod args;
 pub mod backtrace;
 pub mod cmath;
@@ -26,6 +25,7 @@ pub mod io;
 pub mod net;
 pub mod os_str;
 pub mod path;
+pub mod pipe;
 pub mod platform_version;
 pub mod process;
 pub mod random;

library/std/src/sys/pal/hermit/mod.rs

@@ -23,8 +23,6 @@ use crate::sys::env;
 
 pub mod futex;
 pub mod os;
-#[path = "../unsupported/pipe.rs"]
-pub mod pipe;
 pub mod time;
 
 pub fn unsupported<T>() -> crate::io::Result<T> {

library/std/src/sys/pal/sgx/mod.rs

@@ -11,8 +11,6 @@ use crate::sync::atomic::{Atomic, AtomicBool, Ordering};
 pub mod abi;
 mod libunwind_integration;
 pub mod os;
-#[path = "../unsupported/pipe.rs"]
-pub mod pipe;
 pub mod thread_parking;
 pub mod time;
 pub mod waitqueue;

library/std/src/sys/pal/solid/mod.rs

@@ -18,8 +18,6 @@ pub mod itron {
 // `crate::sys::error`
 pub(crate) mod error;
 pub mod os;
-#[path = "../unsupported/pipe.rs"]
-pub mod pipe;
 pub use self::itron::thread_parking;
 pub mod time;
 

library/std/src/sys/pal/teeos/mod.rs

@@ -7,8 +7,6 @@
 #![allow(dead_code)]
 
 pub mod os;
-#[path = "../unsupported/pipe.rs"]
-pub mod pipe;
 #[allow(non_upper_case_globals)]
 #[path = "../unix/time.rs"]
 pub mod time;

library/std/src/sys/pal/trusty/mod.rs

@@ -5,8 +5,6 @@
 mod common;
 #[path = "../unsupported/os.rs"]
 pub mod os;
-#[path = "../unsupported/pipe.rs"]
-pub mod pipe;
 #[path = "../unsupported/time.rs"]
 pub mod time;
 

library/std/src/sys/pal/uefi/mod.rs

@@ -15,8 +15,6 @@
 
 pub mod helpers;
 pub mod os;
-#[path = "../unsupported/pipe.rs"]
-pub mod pipe;
 pub mod time;
 
 #[cfg(test)]