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Redox: Use futex timeout to implement CondVar::wait_timeout
`CondVar::wait_timeout` is implemented by supplying a `TimeSpec` pointer to `futex`. In addition, all calls to `unimplemented!()` have been removed from the Redox `sys` module.
Related to https://github.com/rust-lang/rust/pull/45892
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This commit removes usage of the `libc` crate in "portable" modules like
those at the top level and `sys_common`. Instead common types like `*mut
u8` or `u32` are used instead of `*mut c_void` or `c_int` as well as
switching to platform-specific functions like `sys::strlen` instead of
`libc::strlen`.
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This commit moves the `f32::cmath` and `f64::cmath` modules into the
`sys` module. Note that these are not publicly exported modules, simply
implementation details. These modules are already platform-specific with
shims on MSVC and this is mostly just a reflection of that reality. This
should also help cut down on `#[cfg]` traffic if platforms are brought on
which don't directly support these functions.
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This commit removes the reexport of `EBADF_ERR` as a constant from
libstd's portability facade, instead opting for a platform-specific
function that specifically queries an `io::Error`. Not all platforms may
have a constant for this, so it makes the intent a little more clear
that a code need not be supplied, just an answer to a query.
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This commit removes the `rand` crate from the standard library facade as
well as the `__rand` module in the standard library. Neither of these
were used in any meaningful way in the standard library itself. The only
need for randomness in libstd is to initialize the thread-local keys of
a `HashMap`, and that unconditionally used `OsRng` defined in the
standard library anyway.
The cruft of the `rand` crate and the extra `rand` support in the
standard library makes libstd slightly more difficult to port to new
platforms, namely WebAssembly which doesn't have any randomness at all
(without interfacing with JS). The purpose of this commit is to clarify
and streamline randomness in libstd, focusing on how it's only required
in one location, hashmap seeds.
Note that the `rand` crate out of tree has almost always been a drop-in
replacement for the `rand` crate in-tree, so any usage (accidental or
purposeful) of the crate in-tree should switch to the `rand` crate on
crates.io. This then also has the further benefit of avoiding
duplication (mostly) between the two crates!
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Fixes #44971
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[Redox] Sync with upstream syscall library
This syncs the vendored syscalls with their upstream versions.
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Add the libstd-modifications needed for the L4Re target
This commit adds the needed modifications to compile the std crate for the L4 Runtime environment (L4Re).
A target for the L4Re was introduced in commit: c151220a84e40b65e45308cc0f3bbea4466d3acf
In many aspects implementations for linux also apply for the L4Re microkernel.
Some uncommon characteristics had to be resolved:
* L4Re has no network funktionality
* L4Re has a maximum stacksize of 1Mb for threads
* L4Re has no uid or gid
Co-authored-by: Sebastian Humenda <sebastian.humenda@tu-dresden.de>
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The default min stack size value is smaller on l4re and therefore
this value has to be different depending on the platform.
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Avoid unchecked cast from `u64` to `i64`. Use `try_into()` for checked
cast. (On Unix, cast to `time_t` instead of `i64`.)
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This fixes headings reading "Unsafety" and "Example", they should be
"Safety" and "Examples" according to RFC 1574.
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`.raw_os_error()` (called in `spawn()`) returned None, so this produced an incorrect error.
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Fix typos & us spellings
Fixing some typos and non en-US spellings.
(Update of PR https://github.com/rust-lang/rust/pull/42812 )
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r=Mark-Simulacrum
use field init shorthand EVERYWHERE
Like #43008 (f668999), but [(lacking reasons to be more timid)](https://github.com/rust-lang/rust/pull/43008#issuecomment-312463564) _much more aggressive_.
r? @Mark-Simulacrum
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Like #43008 (f668999), but _much more aggressive_.
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Make backtraces work on Redox, copying Unix implementation
The `backtrace/` directory here is the same as the Unix one, except for adding an implementation of `get_executable_filename`.
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Handle DNS label compression in more places in Redox name resolution
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Fix some typos
Follow up of #43794
If refined my script a little bit and found some more.
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Expose all OS-specific modules in libstd doc.
1. Uses the special `--cfg dox` configuration passed by rustbuild when running `rustdoc`. Changes the `#[cfg(platform)]` into `#[cfg(any(dox, platform))]` so that platform-specific API are visible to rustdoc.
2. Since platform-specific implementations often won't compile correctly on other platforms, `rustdoc` is changed to apply `everybody_loops` to the functions during documentation and doc-test harness.
3. Since platform-specific code are documented on all platforms now, it could confuse users who found a useful API but is non-portable. Also, their examples will be doc-tested, so must be excluded when not testing on the native platform. An undocumented attribute `#[doc(cfg(...))]` is introduced to serve the above purposed.
Fixes #24658 (Does _not_ fully implement #1998).
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Implement AsRawFd for Stdin, Stdout, and Stderr
https://github.com/rust-lang/rfcs/issues/2074
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redox: handle multiple paths in PATH
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fn Path::new<S: AsRef ...>(s: &S) -> &Path
Signed-off-by: NODA, Kai <nodakai@gmail.com>
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Fix backtrace on Redox
This fixes sys::backtrace on Redox
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Fix sys::redox::net::tcp
A change to the upper level API needed to be filtered down
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Implement fs::rename in sys::redox
This uses a simple implementation of copy + unlink. Redox does not have a rename or link system call for a faster implementation.
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Redox: add stat methods(); support is_symlink()
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The atomic_xchg() loop locks the mutex, so the call to mutex_lock is
incorrect, and blocks.
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