d70595b667
# Objective - Fixes #6370 - Closes #6581 ## Solution - Added the following lints to the workspace: - `std_instead_of_core` - `std_instead_of_alloc` - `alloc_instead_of_core` - Used `cargo +nightly fmt` with [item level use formatting](https://rust-lang.github.io/rustfmt/?version=v1.6.0&search=#Item%5C%3A) to split all `use` statements into single items. - Used `cargo clippy --workspace --all-targets --all-features --fix --allow-dirty` to _attempt_ to resolve the new linting issues, and intervened where the lint was unable to resolve the issue automatically (usually due to needing an `extern crate alloc;` statement in a crate root). - Manually removed certain uses of `std` where negative feature gating prevented `--all-features` from finding the offending uses. - Used `cargo +nightly fmt` with [crate level use formatting](https://rust-lang.github.io/rustfmt/?version=v1.6.0&search=#Crate%5C%3A) to re-merge all `use` statements matching Bevy's previous styling. - Manually fixed cases where the `fmt` tool could not re-merge `use` statements due to conditional compilation attributes. ## Testing - Ran CI locally ## Migration Guide The MSRV is now 1.81. Please update to this version or higher. ## Notes - This is a _massive_ change to try and push through, which is why I've outlined the semi-automatic steps I used to create this PR, in case this fails and someone else tries again in the future. - Making this change has no impact on user code, but does mean Bevy contributors will be warned to use `core` and `alloc` instead of `std` where possible. - This lint is a critical first step towards investigating `no_std` options for Bevy. --------- Co-authored-by: François Mockers <francois.mockers@vleue.com>
77 lines
2.2 KiB
Rust
77 lines
2.2 KiB
Rust
#![doc = include_str!("../README.md")]
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#![cfg_attr(docsrs, feature(doc_auto_cfg))]
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#![doc(
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html_logo_url = "https://bevyengine.org/assets/icon.png",
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html_favicon_url = "https://bevyengine.org/assets/icon.png"
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)]
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extern crate alloc;
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mod slice;
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pub use slice::{ParallelSlice, ParallelSliceMut};
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#[cfg_attr(target_arch = "wasm32", path = "wasm_task.rs")]
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mod task;
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pub use task::Task;
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#[cfg(all(not(target_arch = "wasm32"), feature = "multi_threaded"))]
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mod task_pool;
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#[cfg(all(not(target_arch = "wasm32"), feature = "multi_threaded"))]
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pub use task_pool::{Scope, TaskPool, TaskPoolBuilder};
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#[cfg(any(target_arch = "wasm32", not(feature = "multi_threaded")))]
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mod single_threaded_task_pool;
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#[cfg(any(target_arch = "wasm32", not(feature = "multi_threaded")))]
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pub use single_threaded_task_pool::{Scope, TaskPool, TaskPoolBuilder, ThreadExecutor};
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mod usages;
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#[cfg(not(target_arch = "wasm32"))]
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pub use usages::tick_global_task_pools_on_main_thread;
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pub use usages::{AsyncComputeTaskPool, ComputeTaskPool, IoTaskPool};
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#[cfg(all(not(target_arch = "wasm32"), feature = "multi_threaded"))]
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mod thread_executor;
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#[cfg(all(not(target_arch = "wasm32"), feature = "multi_threaded"))]
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pub use thread_executor::{ThreadExecutor, ThreadExecutorTicker};
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#[cfg(feature = "async-io")]
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pub use async_io::block_on;
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#[cfg(not(feature = "async-io"))]
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pub use futures_lite::future::block_on;
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pub use futures_lite::future::poll_once;
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mod iter;
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pub use iter::ParallelIterator;
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pub use futures_lite;
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/// The tasks prelude.
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///
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/// This includes the most common types in this crate, re-exported for your convenience.
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pub mod prelude {
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#[doc(hidden)]
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pub use crate::{
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block_on,
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iter::ParallelIterator,
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slice::{ParallelSlice, ParallelSliceMut},
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usages::{AsyncComputeTaskPool, ComputeTaskPool, IoTaskPool},
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};
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}
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use core::num::NonZero;
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/// Gets the logical CPU core count available to the current process.
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///
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/// This is identical to [`std::thread::available_parallelism`], except
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/// it will return a default value of 1 if it internally errors out.
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///
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/// This will always return at least 1.
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pub fn available_parallelism() -> usize {
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std::thread::available_parallelism()
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.map(NonZero::<usize>::get)
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.unwrap_or(1)
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}
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