Struct tracking_allocator::Allocator

pub struct Allocator<A> { /* fields omitted */ }

Tracking allocator implementation.

This allocator must be installed via #[global_allocator] in order to take effect. More information on using this allocator can be found in the examples, or directly in the standard library docs for GlobalAlloc.

Implementations

impl<A> Allocator<A>

pub const fn from_allocator(allocator: A) -> Self

Creates a new Allocator that wraps another allocator.

impl Allocator<System>

pub const fn system() -> Allocator<System>

Creates a new Allocator that wraps the system allocator.

Trait Implementations

impl Default for Allocator<System>

fn default() -> Self

Returns the “default value” for a type.

impl<A: GlobalAlloc> GlobalAlloc for Allocator<A>

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

Allocate memory as described by the given layout.

unsafe fn dealloc(&self, ptr: *mut u8, layout: Layout)

Deallocate 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

Shrink or grow a block of memory to the given new_size. The block is described by the given ptr pointer and layout.