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This commit stabilizes the `std::time` module and the `Duration` type.
`Duration::span` remains unstable, and the `Display` implementation for
`Duration` has been removed as it is still being reworked and all trait
implementations for stable types are de facto stable.
This is a [breaking-change] to those using `Duration`'s `Display`
implementation.
Conflicts:
src/librustc/lib.rs
src/libstd/time/duration.rs
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This can fail on linux for various reasons, such as the /proc filesystem not
being mounted. There are already many cases where we can't set up stack guards,
so just don't worry about this case and communicate that no guard was enabled.
I've confirmed that this allows the compiler to run in a chroot without /proc
mounted.
Closes #22642
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This commit is an implementation of [RFC 1040][rfc] which is a redesign of the
currently-unstable `Duration` type. The API of the type has been scaled back to
be more conservative and it also no longer supports negative durations.
[rfc]: https://github.com/rust-lang/rfcs/blob/master/text/1040-duration-reform.md
The inner `duration` module of the `time` module has now been hidden (as
`Duration` is reexported) and the feature name for this type has changed from
`std_misc` to `duration`. All APIs accepting durations have also been audited to
take a more flavorful feature name instead of `std_misc`.
Closes #24874
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Statically linked executables do not succeed (aka MUSL-based executables).
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Much of this code hasn't been updated in quite some time and this commit does a
small audit of the functionality:
* Implementation functions now centralize all functionality on a locally defined
`Thread` type.
* The `detach` method has been removed in favor of a `Drop` implementation. This
notably fixes leaking thread handles on Windows.
* The `Thread` structure is now appropriately annotated with `Send` and `Sync`
automatically on Windows and in a custom fashion on Unix.
* The unsafety of creating a thread has been pushed out to the right boundaries
now.
Closes #24442
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This commit stabilizes the old `io::Error::from_os_error` after being renamed to
use the `raw_os_error` terminology instead. This function is often useful when
writing bindings to OS functions but only actually converting to an I/O error at
a later point.
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This is more portable as far as linux is concerned.
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This is more portable as far as linux is concerned.
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Signed-off-by: Anders Kaseorg <andersk@mit.edu>
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Signed-off-by: Anders Kaseorg <andersk@mit.edu>
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Linking __pthread_get_minstack, even weakly, was causing Debian’s
dpkg-shlibdeps to detect an unnecessarily strict versioned dependency
on libc6.
Closes #23628.
Signed-off-by: Anders Kaseorg <andersk@mit.edu>
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- remove `pub` from `struct` (visibility has no effect inside functions)
- move `pthread_main_np` into function
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This function is the current replacement for `std::old_io::timer` which will
soon be deprecated. This function is unstable and has its own feature gate as it
does not yet have an RFC nor has it existed for very long.
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This module had become a #[cfg] jungle, try to bring at least a small semblance
of order to it!
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These were suppressing lots of interesting warnings! Turns out there was also
quite a bit of dead code.
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some commits in OpenBSD base have corrected a problem of stack position.
Now, we can adjust more accurately the page guard in rust.
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... to convert between Box and raw pointers. E. g. use
```
let b: Box<Foo> = Box::from_raw(p);
```
instead of
```
let b: Box<Foo> = mem::transmute(p);
```
Patch also changes closure release code in `src/libstd/sys/unix/thread.rs`
when `pthread_create` failed. Raw pointer was transmuted to box of
`FnOnce()` instead of `Thunk`. This code was probably never executed,
because `pthread_create` rarely fails in practice.
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This patch adds the necessary pieces to support rust on Bitrig https://bitrig.org
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This commit is an implementation of [RFC 592][r592] and [RFC 840][r840]. These
two RFCs tweak the behavior of `CString` and add a new `CStr` unsized slice type
to the module.
[r592]: https://github.com/rust-lang/rfcs/blob/master/text/0592-c-str-deref.md
[r840]: https://github.com/rust-lang/rfcs/blob/master/text/0840-no-panic-in-c-string.md
The new `CStr` type is only constructable via two methods:
1. By `deref`'ing from a `CString`
2. Unsafely via `CStr::from_ptr`
The purpose of `CStr` is to be an unsized type which is a thin pointer to a
`libc::c_char` (currently it is a fat pointer slice due to implementation
limitations). Strings from C can be safely represented with a `CStr` and an
appropriate lifetime as well. Consumers of `&CString` should now consume `&CStr`
instead to allow producers to pass in C-originating strings instead of just
Rust-allocated strings.
A new constructor was added to `CString`, `new`, which takes `T: IntoBytes`
instead of separate `from_slice` and `from_vec` methods (both have been
deprecated in favor of `new`). The `new` method returns a `Result` instead of
panicking. The error variant contains the relevant information about where the
error happened and bytes (if present). Conversions are provided to the
`io::Error` and `old_io::IoError` types via the `FromError` trait which
translate to `InvalidInput`.
This is a breaking change due to the modification of existing `#[unstable]` APIs
and new deprecation, and more detailed information can be found in the two RFCs.
Notable breakage includes:
* All construction of `CString` now needs to use `new` and handle the outgoing
`Result`.
* Usage of `CString` as a byte slice now explicitly needs a `.as_bytes()` call.
* The `as_slice*` methods have been removed in favor of just having the
`as_bytes*` methods.
Closes #22469
Closes #22470
[breaking-change]
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This commit makes several changes to `std::thread` in preparation for
final stabilization:
* It removes the ability to handle panics from `scoped` children; see
#20807 for discussion
* It adds a `JoinHandle` structure, now returned from `spawn`, which
makes it possible to join on children that do not share data from
their parent's stack. The child is automatically detached when the
handle is dropped, and the handle cannot be copied due to Posix
semantics.
* It moves all static methods from `std::thread::Thread` to free
functions in `std::thread`. This was done in part because, due to the
above changes, there are effectively no direct `Thread` constructors,
and the static methods have tended to feel a bit awkward.
* Adds an `io::Result` around the `Builder` methods `scoped` and
`spawn`, making it possible to handle OS errors when creating
threads. The convenience free functions entail an unwrap.
* Stabilizes the entire module. Despite the fact that the API is
changing somewhat here, this is part of a long period of baking and
the changes are addressing all known issues prior to alpha2. If
absolutely necessary, further breaking changes can be made prior to beta.
Closes #20807
[breaking-change]
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- incoporate changes introduced by #21678
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This commit is part of a series that introduces a `std::thread` API to
replace `std::task`.
In the new API, `spawn` returns a `JoinGuard`, which by default will
join the spawned thread when dropped. It can also be used to join
explicitly at any time, returning the thread's result. Alternatively,
the spawned thread can be explicitly detached (so no join takes place).
As part of this change, Rust processes now terminate when the main
thread exits, even if other detached threads are still running, moving
Rust closer to standard threading models. This new behavior may break code
that was relying on the previously implicit join-all.
In addition to the above, the new thread API also offers some built-in
support for building blocking abstractions in user space; see the module
doc for details.
Closes #18000
[breaking-change]
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This commit merges the `rustrt` crate into `std`, undoing part of the
facade. This merger continues the paring down of the runtime system.
Code relying on the public API of `rustrt` will break; some of this API
is now available through `std::rt`, but is likely to change and/or be
removed very soon.
[breaking-change]
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