Commit Graph

30 Commits

Author SHA1 Message Date
Samuel Tardieu 6e7d6d7821 Add Wake diagnostic item for alloc::task::Wake 2026-03-13 14:57:07 +01:00
tison 6346d14202 Apply suggestion from @tisonkun 2026-01-07 09:31:59 +08:00
tison cd39f5a5fe Add waker_fn and local_waker_fn to std::task
Signed-off-by: tison <wander4096@gmail.com>
2025-12-14 14:35:08 +08:00
Eric Holk 72ce1ab42f Stabilize noop_waker
Co-authored-by: zachs18 <8355914+zachs18@users.noreply.github.com>
2024-12-05 14:14:17 -08:00
binarycat ae3c68db34 split up the first paragraph of doc comments for better summaries 2024-11-10 13:22:58 -06:00
Nicholas Nethercote 84ac80f192 Reformat use declarations.
The previous commit updated `rustfmt.toml` appropriately. This commit is
the outcome of running `x fmt --all` with the new formatting options.
2024-07-29 08:26:52 +10:00
klensy 8560d01a96 lib: fix some unnecessary_cast clippy lint
warning: casting raw pointers to the same type and constness is unnecessary (`*mut V` -> `*mut V`)
   --> library\alloc\src\collections\btree\map\entry.rs:357:31
    |
357 |                 let val_ptr = root.borrow_mut().push(self.key, value) as *mut V;
    |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `root.borrow_mut().push
(self.key, value)`
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_cast

warning: casting to the same type is unnecessary (`usize` -> `usize`)
   --> library\alloc\src\ffi\c_str.rs:411:56
    |
411 |             let slice = slice::from_raw_parts_mut(ptr, len as usize);
    |                                                        ^^^^^^^^^^^^ help: try: `len`
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_cast

warning: casting raw pointers to the same type and constness is unnecessary (`*mut T` -> `*mut T`)
   --> library\alloc\src\slice.rs:516:25
    |
516 |                         (buf.as_mut_ptr() as *mut T).add(buf.len()),
    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `buf.as_mut_ptr()`
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_cast

warning: casting raw pointers to the same type and constness is unnecessary (`*mut T` -> `*mut T`)
   --> library\alloc\src\slice.rs:537:21
    |
537 |                     (buf.as_mut_ptr() as *mut T).add(buf.len()),
    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `buf.as_mut_ptr()`
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_cast

warning: casting raw pointers to the same type and constness is unnecessary (`*const ()` -> `*const ()`)
   --> library\alloc\src\task.rs:151:13
    |
151 |             waker as *const (),
    |             ^^^^^^^^^^^^^^^^^^ help: try: `waker`
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_cast

warning: casting raw pointers to the same type and constness is unnecessary (`*const ()` -> `*const ()`)
   --> library\alloc\src\task.rs:323:13
    |
323 |             waker as *const (),
    |             ^^^^^^^^^^^^^^^^^^ help: try: `waker`
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_cast

warning: casting to the same type is unnecessary (`usize` -> `usize`)
   --> library\std\src\sys_common\net.rs:110:21
    |
110 |             assert!(len as usize >= mem::size_of::<c::sockaddr_in>());
    |                     ^^^^^^^^^^^^ help: try: `len`
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_cast

warning: casting to the same type is unnecessary (`usize` -> `usize`)
   --> library\std\src\sys_common\net.rs:116:21
    |
116 |             assert!(len as usize >= mem::size_of::<c::sockaddr_in6>());
    |                     ^^^^^^^^^^^^ help: try: `len`
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_cast
2024-03-25 23:19:40 +03:00
David Tolnay db535bad79 Generate original vtable and clone's vtable in the same CGU 2024-02-26 20:56:44 -08:00
Kevin Reid a6c91f0ae3 Remove the link. 2024-02-10 22:17:11 -08:00
Kevin Reid cef46f9e3d URL-encode chars in fragment. 2024-02-10 22:17:11 -08:00
Kevin Reid ccd6513c67 Additional doc links and explanation of Wake.
This is intended to clarify:

* That `Wake` exists and can be used instead of `RawWaker`.
* How to construct a `Waker` when you are looking at `Wake`
  (which was previously only documented in the example).
2024-02-10 22:17:11 -08:00
Tomás Vallotton 180c68bef5 doc: fix some doctests after rebase 2024-01-20 10:26:25 -03:00
Tomás Vallotton 038c6e046c refactor: make waker mandatory.
This also removes
* impl From<&Context> for ContextBuilder
* Context::try_waker()

The from implementation is removed because now that
wakers are always supported, there are less incentives
to override the current context. Before, the incentive
was to add Waker support to a reactor that didn't have
any.
2024-01-20 10:16:09 -03:00
tvallotton c67a446e72 fix: Apply suggestions from code review
Co-authored-by: Mark Rousskov <mark.simulacrum@gmail.com>
2024-01-20 10:14:25 -03:00
Tomás Vallotton 093f80ba7e chore: fix ci failures 2024-01-20 10:14:25 -03:00
Tomás Vallotton 0cb7a0a90e chore: add tracking issue number to local waker feature 2024-01-20 10:14:25 -03:00
Tomás Vallotton 2012d4b703 fix: make LocalWake available in targets that don't support atomics by removing a #[cfg(target_has_atomic = ptr)] 2024-01-20 10:14:25 -03:00
Tomás Vallotton 403718b19d feat: add try_waker and From<&mut Context> for ContextBuilder to allow the extention of contexts by futures 2024-01-20 10:14:21 -03:00
Tomás Vallotton 60a08196b6 feat: add LocalWaker type, ContextBuilder type, and LocalWake trait. 2024-01-20 10:13:08 -03:00
Mads Ravn 3b196fb391 Updating Wake example to use new 'pin!' macro 2023-04-25 13:50:50 +02:00
Kevin Reid 5dcc418f62 Document the conditional existence of alloc::sync and alloc::task.
The wording is copied from `std::sync::atomic::AtomicPtr`, with
additional advice on how to `#[cfg]` for it.
2022-06-17 20:03:23 -07:00
Michael Howell 60ff298070 Document From implementations for Waker and RawWaker 2021-04-22 14:16:33 -07:00
Joshua Nelson 3733275854 Update the bootstrap compiler
Note this does not change `core::derive` since it was merged after the
beta bump.
2021-02-20 17:19:30 -05:00
Yoshua Wuyts 2c8bf1db54 Stabilize the Wake trait
Co-Authored-By: Ashley Mannix <kodraus@hey.com>
2021-02-03 16:54:29 +01:00
Jonas Schievink ac37c326ae Rollup merge of #79285 - yoshuawuyts:stabilize-arc_mutate_strong_count, r=m-ou-se
Stabilize Arc::{increment,decrement}_strong_count

Tracking issue: https://github.com/rust-lang/rust/issues/71983

Stabilizes `Arc::{incr,decr}_strong_count`, enabling unsafely incrementing an decrementing the Arc strong count directly with fewer gotchas. This API was first introduced on nightly six months ago, and has not seen any changes since. The initial PR showed two existing pieces of code that would benefit from this API, and included a change inside the stdlib to use this.

Given the small surface area, predictable use, and no changes since introduction, I'd like to propose we stabilize this.

closes https://github.com/rust-lang/rust/issues/71983
r? `@Mark-Simulacrum`

## Links
 * [Initial implementation](https://github.com/rust-lang/rust/pull/70733)
 * [Motivation from #68700](https://github.com/rust-lang/rust/pull/68700#discussion_r396169064)
 * [Real world example in an executor](https://docs.rs/extreme/666.666.666666/src/extreme/lib.rs.html#13)
2021-01-31 01:47:20 +01:00
Joshua Nelson c819a4c025 Don't mark ineffective_unstable_trait_impl as an internal lint
It's not an internal lint:
- It's not in the rustc::internal lint group
- It's on unconditionally, because it actually lints `staged_api`, not
  the compiler

This fixes a bug where `#[deny(rustc::internal)]` would warn that
`rustc::internal` was an unknown lint.
2021-01-15 17:31:10 -05:00
Yoshua Wuyts a55039df84 Stabilize Arc::{incr,decr}_strong_count 2020-12-18 23:34:48 +01:00
Mara Bos 471fb622aa Allow unstable From impl for [Raw]Waker. 2020-09-11 13:36:45 +02:00
Surya Midatala 11f69796ee Move to intra-doc links for task.rs and vec.rs 2020-08-18 21:47:23 +05:30
mark 2c31b45ae8 mv std libs to library/ 2020-07-27 19:51:13 -05:00