Struct ConstLimit

pub struct ConstLimit<A, const L: usize> { /* private fields */ }

Implementations

impl<A: GlobalAlloc, const L: usize> ConstLimit<A, L>

pub const fn new(alloc: A) -> Self

pub unsafe fn try_alloc(&self, layout: Layout) -> Option<*mut u8>

Returns None if the memory limit would be exhausted after allocating.

Safety

The same restrictions as GlobalAlloc::alloc.

pub fn remaining(&self) -> usize

Returns remaining memory in bytes. This value does not guarantee that an allocation of x bytes will succeed.

Trait Implementations

impl<A: Clone, const L: usize> Clone for ConstLimit<A, L>

fn clone(&self) -> ConstLimit<A, L>

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<A: GlobalAlloc, const L: usize> GlobalAlloc for ConstLimit<A, L>

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.