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As @bjorn3 pointed out [here], I used the wrong stability attribute in #98368
when making `std::os::fd` public. I set it to Rust 1.63, which was when
io-safety was stabilized, but it should be Rust 1.66, which was when
`std::os::fd` was stabilized.
[here]: https://github.com/rust-lang/rust/pull/98368#discussion_r1063721420
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The `std::os::unix` module is stubbed out when building docs for these
target platforms. The introduction of Linux-specific extension traits
caused `std::os::net` to depend on sub-modules of `std::os::unix`,
which broke rustdoc for the `wasm32-unknown-unknown` target.
Adding an additional `#[cfg]` guard solves that rustdoc failure by
not declaring `linux_ext` on targets with a stubbed `std::os::unix`.
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Adjust stabilization version to 1.65.0 for wasi fds
See https://github.com/rust-lang/rust/pull/103308#issuecomment-1292277645 for this ask.
Backport of that PR to beta (1.65.0) will include a similar patch.
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Move `unix_socket_abstract` feature API to `SocketAddrExt`.
The pre-stabilized API for abstract socket addresses exposes methods on `SocketAddr` that are only enabled for `cfg(any(target_os = "android", target_os = "linux"))`. Per discussion in <https://github.com/rust-lang/rust/issues/85410>, moving these methods to an OS-specific extension trait is required before stabilization can be considered.
This PR makes four changes:
1. The internal module `std::os::net` contains logic for the unstable feature `tcp_quickack` (https://github.com/rust-lang/rust/issues/96256). I moved that code into `linux_ext/tcp.rs` and tried to adjust the module tree so it could accommodate a second unstable feature there.
2. Moves the public API out of `impl SocketAddr`, into `impl SocketAddrExt for SocketAddr` (the headline change).
3. The existing function names and docs for `unix_socket_abstract` refer to addresses as being created from abstract namespaces, but a more accurate description is that they create sockets in *the* abstract namespace. I adjusted the function signatures correspondingly and tried to update the docs to be clearer.
4. I also tweaked `from_abstract_name` so it takes an `AsRef<[u8]>` instead of `&[u8]`, allowing `b""` literals to be passed directly.
Issues:
1. The public module `std::os::linux::net` is marked as part of `tcp_quickack`. I couldn't figure out how to mark a module as being part of two unstable features, so I just left the existing attributes in place. My hope is that this will be fixed as a side-effect of stabilizing either feature.
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See https://github.com/rust-lang/rust/pull/103308#issuecomment-1292277645
for this ask.
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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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