1# Crossbeam Epoch 2 3[]( 4https://github.com/crossbeam-rs/crossbeam/actions) 5[]( 6https://github.com/crossbeam-rs/crossbeam/tree/master/crossbeam-epoch#license) 7[]( 8https://crates.io/crates/crossbeam-epoch) 9[]( 10https://docs.rs/crossbeam-epoch) 11[]( 12https://www.rust-lang.org) 13[](https://discord.com/invite/JXYwgWZ) 14 15This crate provides epoch-based garbage collection for building concurrent data structures. 16 17When a thread removes an object from a concurrent data structure, other threads 18may be still using pointers to it at the same time, so it cannot be destroyed 19immediately. Epoch-based GC is an efficient mechanism for deferring destruction of 20shared objects until no pointers to them can exist. 21 22Everything in this crate except the global GC can be used in `no_std` environments, provided that 23`alloc` feature is enabled. 24 25## Usage 26 27Add this to your `Cargo.toml`: 28 29```toml 30[dependencies] 31crossbeam-epoch = "0.9" 32``` 33 34## Compatibility 35 36Crossbeam Epoch supports stable Rust releases going back at least six months, 37and every time the minimum supported Rust version is increased, a new minor 38version is released. Currently, the minimum supported Rust version is 1.38. 39 40## License 41 42Licensed under either of 43 44 * Apache License, Version 2.0 ([LICENSE-APACHE](LICENSE-APACHE) or http://www.apache.org/licenses/LICENSE-2.0) 45 * MIT license ([LICENSE-MIT](LICENSE-MIT) or http://opensource.org/licenses/MIT) 46 47at your option. 48 49#### Contribution 50 51Unless you explicitly state otherwise, any contribution intentionally submitted 52for inclusion in the work by you, as defined in the Apache-2.0 license, shall be 53dual licensed as above, without any additional terms or conditions. 54
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