Skip to content

rcore-os/buddy_system_allocator

Folders and files

NameName
Last commit message
Last commit date

Latest commit

 

History

98 Commits
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Repository files navigation

buddy_system_allocator

Crates.io version docs.rs

An (almost) drop-in replacement for phil-opp/linked-list-allocator. But it uses buddy system instead.

Usage

To use buddy_system_allocator for global allocator:

use buddy_system_allocator::LockedHeap;

#[global_allocator]
static HEAP_ALLOCATOR: LockedHeap = LockedHeap::<33>::empty();

To init the allocator:

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.

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.