7645ce91ed
# Objective Fix https://github.com/bevyengine/bevy/issues/19617 # Solution Add newlines before all impl blocks. I suspect that at least some of these will be objectionable! If there's a desired Bevy style for this then I'll update the PR. If not then we can just close it - it's the work of a single find and replace.
134 lines
3.9 KiB
Rust
134 lines
3.9 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://bevy.org/assets/icon.png",
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html_favicon_url = "https://bevy.org/assets/icon.png"
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)]
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#![no_std]
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#[cfg(feature = "std")]
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extern crate std;
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extern crate alloc;
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mod conditional_send {
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cfg_if::cfg_if! {
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if #[cfg(target_arch = "wasm32")] {
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/// Use [`ConditionalSend`] to mark an optional Send trait bound. Useful as on certain platforms (eg. Wasm),
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/// futures aren't Send.
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pub trait ConditionalSend {}
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impl<T> ConditionalSend for T {}
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} else {
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/// Use [`ConditionalSend`] to mark an optional Send trait bound. Useful as on certain platforms (eg. Wasm),
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/// futures aren't Send.
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pub trait ConditionalSend: Send {}
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impl<T: Send> ConditionalSend for T {}
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}
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}
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}
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pub use conditional_send::*;
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/// Use [`ConditionalSendFuture`] for a future with an optional Send trait bound, as on certain platforms (eg. Wasm),
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/// futures aren't Send.
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pub trait ConditionalSendFuture: Future + ConditionalSend {}
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impl<T: Future + ConditionalSend> ConditionalSendFuture for T {}
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use alloc::boxed::Box;
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/// An owned and dynamically typed Future used when you can't statically type your result or need to add some indirection.
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pub type BoxedFuture<'a, T> = core::pin::Pin<Box<dyn ConditionalSendFuture<Output = T> + 'a>>;
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pub mod futures;
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#[cfg(not(feature = "async_executor"))]
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mod edge_executor;
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mod executor;
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mod slice;
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pub use slice::{ParallelSlice, ParallelSliceMut};
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#[cfg_attr(all(target_arch = "wasm32", feature = "web"), path = "wasm_task.rs")]
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mod task;
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pub use task::Task;
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cfg_if::cfg_if! {
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if #[cfg(all(not(target_arch = "wasm32"), feature = "multi_threaded"))] {
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mod task_pool;
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mod thread_executor;
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pub use task_pool::{Scope, TaskPool, TaskPoolBuilder};
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pub use thread_executor::{ThreadExecutor, ThreadExecutorTicker};
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} else if #[cfg(any(target_arch = "wasm32", not(feature = "multi_threaded")))] {
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mod single_threaded_task_pool;
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pub use single_threaded_task_pool::{Scope, TaskPool, TaskPoolBuilder, ThreadExecutor};
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}
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}
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mod usages;
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pub use futures_lite::future::poll_once;
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pub use usages::{AsyncComputeTaskPool, ComputeTaskPool, IoTaskPool};
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#[cfg(not(all(target_arch = "wasm32", feature = "web")))]
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pub use usages::tick_global_task_pools_on_main_thread;
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#[cfg(feature = "std")]
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cfg_if::cfg_if! {
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if #[cfg(feature = "async-io")] {
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pub use async_io::block_on;
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} else {
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pub use futures_lite::future::block_on;
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}
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}
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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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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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#[cfg(feature = "std")]
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#[doc(hidden)]
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pub use crate::block_on;
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}
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cfg_if::cfg_if! {
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if #[cfg(feature = "std")] {
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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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} else {
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/// Gets the logical CPU core count available to the current process.
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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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// Without access to std, assume a single thread is available
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1
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}
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}
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}
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