std: merge definitions of StdioPipes

All platforms define this structure the same way, so we can just put it in the `process` module directly.

Author: joboet

library/std/src/process.rs

@@ -268,8 +268,8 @@ impl AsInner<imp::Process> for Child {
     }
 }
 
-impl FromInner<(imp::Process, imp::StdioPipes)> for Child {
-    fn from_inner((handle, io): (imp::Process, imp::StdioPipes)) -> Child {
+impl FromInner<(imp::Process, StdioPipes)> for Child {
+    fn from_inner((handle, io): (imp::Process, StdioPipes)) -> Child {
         Child {
             handle,
             stdin: io.stdin.map(ChildStdin::from_inner),
@@ -296,6 +296,15 @@ impl fmt::Debug for Child {
     }
 }
 
+/// The pipes connected to a spawned process.
+///
+/// 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>,
+}
+
 /// A handle to a child process's standard input (stdin).
 ///
 /// This struct is used in the [`stdin`] field on [`Child`].

library/std/src/sys/process/mod.rs

@@ -24,7 +24,7 @@ mod env;
 
 pub use env::CommandEnvs;
 pub use imp::{
-    Command, CommandArgs, EnvKey, ExitCode, ExitStatus, ExitStatusError, Process, Stdio, StdioPipes,
+    Command, CommandArgs, EnvKey, ExitCode, ExitStatus, ExitStatusError, Process, Stdio,
 };
 
 #[cfg(any(

library/std/src/sys/process/uefi.rs

@@ -6,6 +6,7 @@ pub use crate::ffi::OsString as EnvKey;
 use crate::ffi::{OsStr, OsString};
 use crate::num::{NonZero, NonZeroI32};
 use crate::path::Path;
+use crate::process::StdioPipes;
 use crate::sys::fs::File;
 use crate::sys::pal::helpers;
 use crate::sys::pal::os::error_string;
@@ -27,14 +28,6 @@ pub struct Command {
     env: CommandEnv,
 }
 
-// passed back to std::process with the pipes connected to the child, if any
-// were requested
-pub struct StdioPipes {
-    pub stdin: Option<AnonPipe>,
-    pub stdout: Option<AnonPipe>,
-    pub stderr: Option<AnonPipe>,
-}
-
 #[derive(Copy, Clone, Debug)]
 pub enum Stdio {
     Inherit,

library/std/src/sys/process/unix/common.rs

@@ -9,6 +9,7 @@ use crate::collections::BTreeMap;
 use crate::ffi::{CStr, CString, OsStr, OsString};
 use crate::os::unix::prelude::*;
 use crate::path::Path;
+use crate::process::StdioPipes;
 use crate::sys::fd::FileDesc;
 use crate::sys::fs::File;
 #[cfg(not(target_os = "fuchsia"))]
@@ -104,14 +105,6 @@ pub struct Command {
     setsid: bool,
 }
 
-// passed back to std::process with the pipes connected to the child, if any
-// were requested
-pub struct StdioPipes {
-    pub stdin: Option<AnonPipe>,
-    pub stdout: Option<AnonPipe>,
-    pub stderr: Option<AnonPipe>,
-}
-
 // passed to do_exec() with configuration of what the child stdio should look
 // like
 #[cfg_attr(target_os = "vita", allow(dead_code))]

library/std/src/sys/process/unix/fuchsia.rs

@@ -2,6 +2,7 @@ use libc::{c_int, size_t};
 
 use super::common::*;
 use crate::num::NonZero;
+use crate::process::StdioPipes;
 use crate::sys::pal::fuchsia::*;
 use crate::{fmt, io, mem, ptr};
 

library/std/src/sys/process/unix/mod.rs

@@ -23,5 +23,5 @@ cfg_select! {
 
 pub use imp::{ExitStatus, ExitStatusError, Process};
 
-pub use self::common::{Command, CommandArgs, ExitCode, Stdio, StdioPipes};
+pub use self::common::{Command, CommandArgs, ExitCode, Stdio};
 pub use crate::ffi::OsString as EnvKey;

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

@@ -13,6 +13,7 @@ use libc::{gid_t, uid_t};
 use super::common::*;
 use crate::io::{self, Error, ErrorKind};
 use crate::num::NonZero;
+use crate::process::StdioPipes;
 use crate::sys::cvt;
 #[cfg(target_os = "linux")]
 use crate::sys::pal::linux::pidfd::PidFd;

library/std/src/sys/process/unix/unsupported.rs

@@ -3,6 +3,7 @@ use libc::{c_int, pid_t};
 use super::common::*;
 use crate::io;
 use crate::num::NonZero;
+use crate::process::StdioPipes;
 use crate::sys::pal::unsupported::*;
 
 ////////////////////////////////////////////////////////////////////////////////

library/std/src/sys/process/unix/vxworks.rs

@@ -4,6 +4,7 @@ use libc::{self, RTP_ID, c_char, c_int};
 use super::common::*;
 use crate::io::{self, ErrorKind};
 use crate::num::NonZero;
+use crate::process::StdioPipes;
 use crate::sys::{cvt, thread};
 use crate::{fmt, sys};
 

library/std/src/sys/process/unsupported.rs

@@ -3,6 +3,7 @@ pub use crate::ffi::OsString as EnvKey;
 use crate::ffi::{OsStr, OsString};
 use crate::num::NonZero;
 use crate::path::Path;
+use crate::process::StdioPipes;
 use crate::sys::fs::File;
 use crate::sys::pipe::AnonPipe;
 use crate::sys::unsupported;
@@ -23,14 +24,6 @@ pub struct Command {
     stderr: Option<Stdio>,
 }
 
-// passed back to std::process with the pipes connected to the child, if any
-// were requested
-pub struct StdioPipes {
-    pub stdin: Option<AnonPipe>,
-    pub stdout: Option<AnonPipe>,
-    pub stderr: Option<AnonPipe>,
-}
-
 #[derive(Debug)]
 pub enum Stdio {
     Inherit,