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diff --git a/third_party/rust/crossbeam-utils-0.6.6/README.md b/third_party/rust/crossbeam-utils-0.6.6/README.md new file mode 100644 index 0000000000..b4a0f6b20f --- /dev/null +++ b/third_party/rust/crossbeam-utils-0.6.6/README.md @@ -0,0 +1,73 @@ +# Crossbeam Utils + +[![Build Status](https://travis-ci.org/crossbeam-rs/crossbeam.svg?branch=master)]( +https://travis-ci.org/crossbeam-rs/crossbeam) +[![License](https://img.shields.io/badge/license-MIT%2FApache--2.0-blue.svg)]( +https://github.com/crossbeam-rs/crossbeam-utils/tree/master/src) +[![Cargo](https://img.shields.io/crates/v/crossbeam-utils.svg)]( +https://crates.io/crates/crossbeam-utils) +[![Documentation](https://docs.rs/crossbeam-utils/badge.svg)]( +https://docs.rs/crossbeam-utils) +[![Rust 1.26+](https://img.shields.io/badge/rust-1.26+-lightgray.svg)]( +https://www.rust-lang.org) +[![chat](https://img.shields.io/discord/569610676205781012.svg?logo=discord)](https://discord.gg/BBYwKq) + +This crate provides miscellaneous tools for concurrent programming: + +#### Atomics + +* [`AtomicCell`], a thread-safe mutable memory location.<sup>(no_std)</sup> +* [`AtomicConsume`], for reading from primitive atomic types with "consume" ordering.<sup>(no_std)</sup> + +#### Thread synchronization + +* [`Parker`], a thread parking primitive. +* [`ShardedLock`], a sharded reader-writer lock with fast concurrent reads. +* [`WaitGroup`], for synchronizing the beginning or end of some computation. + +#### Utilities + +* [`Backoff`], for exponential backoff in spin loops.<sup>(no_std)</sup> +* [`CachePadded`], for padding and aligning a value to the length of a cache line.<sup>(no_std)</sup> +* [`scope`], for spawning threads that borrow local variables from the stack. + +*Features marked with <sup>(no_std)</sup> can be used in `no_std` environments.*<br/> + +[`AtomicCell`]: https://docs.rs/crossbeam-utils/*/crossbeam_utils/atomic/struct.AtomicCell.html +[`AtomicConsume`]: https://docs.rs/crossbeam-utils/*/crossbeam_utils/atomic/trait.AtomicConsume.html +[`Parker`]: https://docs.rs/crossbeam-utils/*/crossbeam_utils/sync/struct.Parker.html +[`ShardedLock`]: https://docs.rs/crossbeam-utils/*/crossbeam_utils/sync/struct.ShardedLock.html +[`WaitGroup`]: https://docs.rs/crossbeam-utils/*/crossbeam_utils/sync/struct.WaitGroup.html +[`Backoff`]: https://docs.rs/crossbeam-utils/*/crossbeam_utils/struct.Backoff.html +[`CachePadded`]: https://docs.rs/crossbeam-utils/*/crossbeam_utils/struct.CachePadded.html +[`scope`]: https://docs.rs/crossbeam-utils/*/crossbeam_utils/thread/fn.scope.html + +## Usage + +Add this to your `Cargo.toml`: + +```toml +[dependencies] +crossbeam-utils = "0.6" +``` + +Next, add this to your crate: + +```rust +extern crate crossbeam_utils; +``` + +## License + +Licensed under either of + + * Apache License, Version 2.0 ([LICENSE-APACHE](LICENSE-APACHE) or http://www.apache.org/licenses/LICENSE-2.0) + * MIT license ([LICENSE-MIT](LICENSE-MIT) or http://opensource.org/licenses/MIT) + +at your option. + +#### Contribution + +Unless you explicitly state otherwise, any contribution intentionally submitted +for inclusion in the work by you, as defined in the Apache-2.0 license, shall be +dual licensed as above, without any additional terms or conditions. |