Struct CountingAllocator 

pub struct CountingAllocator<A = System>(/* private fields */);

No-op counterpart of the tracking allocator: a pure pass-through to the inner allocator, so a #[global_allocator] declaration compiles unchanged with the hotpath-meta feature disabled.

Implementations

impl CountingAllocator<System>

pub const fn new() -> Self

impl<A> CountingAllocator<A>

pub const fn with(inner: A) -> Self

Trait Implementations

impl<A: Default> Default for CountingAllocator<A>

fn default() -> Self

Returns the “default value” for a type.

impl<A> GlobalAlloc for CountingAllocator<A>

where A: GlobalAlloc,

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.