Struct Allocator

#[repr(C, align(16))]
pub struct Allocator<const SIZE: usize>(/* private fields */);

A fixed-size single allocation allocator.

Implementations

impl<const SIZE: usize> Allocator<SIZE>

pub const fn new() -> Self

Create a new one-time allocator

Examples found in repository

examples/main.rs (line 34)

    static ALLOCATOR: Allocator<{ size_of::<usize>() * 2 }> = Allocator::new();

Trait Implementations

impl<const SIZE: usize> GlobalAlloc for Allocator<SIZE>

unsafe fn alloc(&self, layout: Layout) -> *mut u8

Allocates memory as described by the given layout.

unsafe fn dealloc(&self, _ptr: *mut u8, _layout: Layout)

Deallocates the block of memory at the given ptr pointer with the given layout.

unsafe fn alloc_zeroed(&self, layout: Layout) -> *mut u8

Behaves like alloc, but also ensures that the contents are set to zero before being returned.

unsafe fn realloc( &self, ptr: *mut u8, layout: Layout, new_size: usize, ) -> *mut u8

Shrinks or grows a block of memory to the given new_size in bytes. The block is described by the given ptr pointer and layout.

impl<const SIZE: usize> Sync for Allocator<SIZE>