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https://github.com/rcore-os/buddy_system_allocator
A buddy system allocator in pure Rust.
https://github.com/rcore-os/buddy_system_allocator
allocator bare-metal-programming buddy-system rust
Last synced: 1 day ago
JSON representation
A buddy system allocator in pure Rust.
- Host: GitHub
- URL: https://github.com/rcore-os/buddy_system_allocator
- Owner: rcore-os
- License: mit
- Created: 2019-03-17T17:54:28.000Z (almost 6 years ago)
- Default Branch: master
- Last Pushed: 2024-09-21T16:45:13.000Z (3 months ago)
- Last Synced: 2024-12-14T20:02:31.866Z (9 days ago)
- Topics: allocator, bare-metal-programming, buddy-system, rust
- Language: Rust
- Size: 81.1 KB
- Stars: 94
- Watchers: 7
- Forks: 25
- Open Issues: 2
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
README
# buddy_system_allocator
[![Crates.io version][crate-img]][crate]
[![docs.rs][docs-img]][docs]An (almost) drop-in replacement for [phil-opp/linked-list-allocator](https://github.com/phil-opp/linked-list-allocator). But it uses buddy system instead.
## Usage
To use buddy_system_allocator for global allocator:
```rust
use buddy_system_allocator::LockedHeap;#[global_allocator]
static HEAP_ALLOCATOR: LockedHeap = LockedHeap::<33>::empty();
```To init the allocator:
```rust
unsafe {
HEAP_ALLOCATOR.lock().init(heap_start, heap_size);
// or
HEAP_ALLOCATOR.lock().add_to_heap(heap_start, heap_end);
}
```You can also use `FrameAllocator` and `LockedHeapWithRescue`, see their documentation for usage.
## Features
- **`alloc`** (default): Provide `FrameAllocator` and `LockedFrameAllocator`, which depend on a
global allocator.
- **`use_spin`** (default): Provide a `LockedHeap` type that implements the [`GlobalAlloc`] trait by
using a spinlock.[`GlobalAlloc`]: https://doc.rust-lang.org/nightly/core/alloc/trait.GlobalAlloc.html
## License
Some code comes from phil-opp's linked-list-allocator.
Licensed under MIT License. Thanks phill-opp's linked-list-allocator for inspirations and interface.
[crate-img]: https://img.shields.io/crates/v/buddy_system_allocator.svg
[crate]: https://crates.io/crates/buddy_system_allocator
[docs-img]: https://docs.rs/buddy_system_allocator/badge.svg
[docs]: https://docs.rs/buddy_system_allocator