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io_safety was stabilized in Rust 1.63, so mark the io_safety exports in
`std::os::wasi::io` as stable.
Fixes #103306.
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The UNIX and WASI implementations use `isatty`. The Windows
implementation uses the same logic the `atty` crate uses, including the
hack needed to detect msys terminals.
Implement this trait for `File` and for `Stdin`/`Stdout`/`Stderr` and
their locked counterparts on all platforms. On UNIX and WASI, implement
it for `BorrowedFd`/`OwnedFd`. On Windows, implement it for
`BorrowedHandle`/`OwnedHandle`.
Based on https://github.com/rust-lang/rust/pull/91121
Co-authored-by: Matt Wilkinson <mattwilki17@gmail.com>
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Make `std::os::fd` public.
`std::os::fd` defines types like `OwnedFd` and `RawFd` and is common
between Unix and non-Unix platforms that share a basic file-descriptor
concept. Rust currently uses this internally to simplify its own code,
but it would be useful for external users in the same way, so make it
public.
This means that `OwnedFd` etc. will all appear in three places, for
example on unix platforms:
- `std::os::fd::OwnedFd`
- `std::os::unix::io::OwnedFd`
- `std::os::unix::prelude::OwnedFd`
r? `````@joshtriplett`````
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Remove manual <[u8]>::escape_ascii
`@rustbot` label: +C-cleanup
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Add `#[unstable(feature = "os_fd", issue = "98699")]` to the new
`pub use` declarations.
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`std::os::fd` defines types like `OwnedFd` and `RawFd` and is common
between Unix and non-Unix platforms that share a basic file-descriptor
concept. Rust currently uses this internally to simplify its own code,
but it would be useful for external users in the same way, so make it
public.
This means that `OwnedFd` etc. will all appear in three places, for
example on unix platforms:
- `std::os::fd::OwnedFd`
- `std::os::unix::io::OwnedFd`
- `std::os::unix::prelude::OwnedFd`
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socket `set_mark` addition.
to be able to set a marker/id on the socket for network filtering
(iptables/ipfw here) purpose.
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Add setter and getter for TCP_QUICKACK on TcpStream for Linux
Reference issue #96256
Setting TCP_QUICKACK on TcpStream for Linux
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Export Cancel from std::os::fortanix_sgx::usercalls::raw
This was missed in https://github.com/rust-lang/rust/pull/100642
cc ``@raoulstrackx`` and ``@jethrogb``
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net listen backlog update, follow-up from #97963.
FreeBSD and using system limit instead for others.
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This was missed in https://github.com/rust-lang/rust/pull/100642
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FreeBSD and using system limit instead for others.
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Replace most uses of `pointer::offset` with `add` and `sub`
As PR title says, it replaces `pointer::offset` in compiler and standard library with `pointer::add` and `pointer::sub`. This generally makes code cleaner, easier to grasp and removes (or, well, hides) integer casts.
This is generally trivially correct, `.offset(-constant)` is just `.sub(constant)`, `.offset(usized as isize)` is just `.add(usized)`, etc. However in some cases we need to be careful with signs of things.
r? ````@scottmcm````
_split off from #100746_
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Rollup of 9 pull requests
Successful merges:
- #97963 (net listen backlog set to negative on Linux.)
- #99935 (Reenable disabled early syntax gates as future-incompatibility lints)
- #100129 (add miri-test-libstd support to libstd)
- #100500 (Ban references to `Self` in trait object substs for projection predicates too.)
- #100636 (Revert "Revert "Allow dynamic linking for iOS/tvOS targets."")
- #100718 ([rustdoc] Fix item info display)
- #100769 (Suggest adding a reference to a trait assoc item)
- #100777 (elaborate how revisions work with FileCheck stuff in src/test/codegen)
- #100796 (Refactor: remove unnecessary string searchings)
Failed merges:
r? `@ghost`
`@rustbot` modify labels: rollup
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net listen backlog set to negative on Linux.
it will be 4076 (from 5.4) or 128.
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Update fortanix-sgx-abi to 0.5.0 to add support for cancel queue (see
https://github.com/fortanix/rust-sgx/pull/405 and
https://github.com/fortanix/rust-sgx/pull/404).
Export some useful traits for processing SGX usercall. This is needed
for https://github.com/fortanix/rust-sgx/pull/404 to avoid duplication.
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for linux and android
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This fixes a regression from stable to nightly.
Closes #99502.
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Stabilize Windows `FileTypeExt` with `is_symlink_dir` and `is_symlink_file`
These calls allow detecting whether a symlink is a file or a directory,
a distinction Windows maintains, and one important to software that
wants to do further operations on the symlink (e.g. removing it).
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These merged in #97437 for 1.64.0, apart from the main `io_safety`
feature that stabilized in 1.63.0.
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stdlib support for Apple WatchOS
This is a follow-up to https://github.com/rust-lang/rust/pull/95243 (Add Apple WatchOS compiler targets) that adds stdlib support for Apple WatchOS.
`@deg4uss3r`
`@nagisa`
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r=joshtriplett
Document and stabilize process_set_process_group
Tracking issue: https://github.com/rust-lang/rust/issues/93857
FCP finished here: https://github.com/rust-lang/rust/issues/93857#issuecomment-1179551697
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Explain PGID 0, and provide the acronym PGID.
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Inline Windows `OsStrExt::encode_wide`
User crates currently produce much more code than necessary because the optimizer fails to make assumptions about this method.
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Tracking issue: https://github.com/rust-lang/rust/issues/93857
FCP finished here:
https://github.com/rust-lang/rust/issues/93857#issuecomment-1179551697
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Implement ExitCodeExt for Windows
Fixes #97914
### Motivation:
On Windows it is common for applications to return `HRESULT` (`i32`) or `DWORD` (`u32`) values. These stem from COM based components ([HRESULTS](https://docs.microsoft.com/en-us/windows/win32/api/objbase/nf-objbase-coinitialize)), Win32 errors ([GetLastError](https://docs.microsoft.com/en-us/windows/win32/api/errhandlingapi/nf-errhandlingapi-getlasterror)), GUI applications ([WM_QUIT](https://docs.microsoft.com/en-us/windows/win32/winmsg/wm-quit)) and more. The newly stabilized `ExitCode` provides an excellent fit for propagating these values, because `std::process::exit` does not run deconstructors which can result in errors. However, `ExitCode` currently only implements `From<u8> for ExitCode`, which disallows the full range of `i32`/`u32` values. This pull requests attempts to address that shortcoming by providing windows specific extensions that accept a `u32` value (which covers all possible `HRESULTS` and Win32 errors) analog to [ExitStatusExt::from_raw](https://doc.rust-lang.org/std/os/windows/process/trait.ExitStatusExt.html#tymethod.from_raw).
This was also intended by the original Stabilization https://github.com/rust-lang/rust/pull/93840#issue-1129209143= as pointed out by ``@eggyal`` in https://github.com/rust-lang/rust/issues/97914#issuecomment-1151076755:
> Issues around platform specific representations: We resolved this issue by changing the return type of report from i32 to the opaque type ExitCode. __That way we can change the underlying representation without affecting the API, letting us offer full support for platform specific exit code APIs in the future.__
[Emphasis added]
### API
```rust
/// Windows-specific extensions to [`process::ExitCode`].
///
/// This trait is sealed: it cannot be implemented outside the standard library.
/// This is so that future additional methods are not breaking changes.
#[stable(feature = "windows_process_exit_code_from", since = "1.63.0")]
pub trait ExitCodeExt: Sealed {
/// Creates a new `ExitCode` from the raw underlying `u32` return value of
/// a process.
#[stable(feature = "windows_process_exit_code_from", since = "1.63.0")]
fn from_raw(raw: u32) -> Self;
}
#[stable(feature = "windows_process_exit_code_from", since = "1.63.0")]
impl ExitCodeExt for process::ExitCode {
fn from_raw(raw: u32) -> Self {
process::ExitCode::from_inner(From::from(raw))
}
}
```
### Misc
I apologize in advance if I misplaced any attributes regarding stabilzation, as far as I learned traits are insta-stable so I chose to make them stable. If this is an error, please let me know and I'll correct it. I also added some additional machinery to make it work, analog to [ExitStatus](https://doc.rust-lang.org/std/process/struct.ExitStatus.html#).
EDIT: Proposal: https://github.com/rust-lang/libs-team/issues/48
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to be able to set a marker/id on the socket for network filtering
(iptables/ipfw here) purpose.
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`impl<T: AsRawFd> AsRawFd for {Arc,Box}<T>`
This allows implementing traits that require a raw FD on Arc and Box.
Previously, you'd have to add the function to the trait itself:
```rust
trait MyTrait {
fn as_raw_fd(&self) -> RawFd;
}
impl<T: MyTrait> MyTrait for Arc<T> {
fn as_raw_fd(&self) -> RawFd {
(**self).as_raw_fd()
}
}
```
In particular, this leads to lots of "multiple applicable items in scope" errors because you have to disambiguate `MyTrait::as_raw_fd` from `AsRawFd::as_raw_fd` at each call site. In generic contexts, when passing the type to a function that takes `impl AsRawFd` it's also sometimes required to use `T: MyTrait + AsRawFd`, which wouldn't be necessary if I could write `MyTrait: AsRawFd`.
After this PR, the code can be simpler:
```rust
trait MyTrait: AsRawFd {}
impl<T: MyTrait> MyTrait for Arc<T> {}
```
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These calls allow detecting whether a symlink is a file or a directory,
a distinction Windows maintains, and one important to software that
wants to do further operations on the symlink (e.g. removing it).
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This allows implementing traits that require a raw FD on Arc and Box.
Previously, you'd have to add the function to the trait itself:
```rust
trait MyTrait {
fn as_raw_fd(&self) -> RawFd;
}
impl<T: MyTrait> MyTrait for Arc<T> {
fn as_raw_fd(&self) -> RawFd {
(**self).as_raw_fd()
}
}
```
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Document Rust's stance on `/proc/self/mem`
Add documentation to `std::os::unix::io` describing Rust's stance on
`/proc/self/mem`, treating it as an external entity which is outside
the scope of Rust's safety guarantees.
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Windows: `CommandExt::async_pipes`
Discussed in https://github.com/tokio-rs/tokio/issues/4670 was the need for third party crates to be able to force `process::Command::spawn` to create pipes as async.
This implements the suggestion for a `async_pipes` method that gives third party crates that option.
# Example:
```rust
use std::process::{Command, Stdio};
Command::new("cmd")
.async_pipes(true)
.stdin(Stdio::piped())
.stdout(Stdio::piped())
.stderr(Stdio::piped())
.spawn()
.unwrap();
```
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