Struct UefiBootAllocator 

pub struct UefiBootAllocator;

A UEFI Boot Services pool allocation to back Rust’s global allocator.

Notes

• Valid only while Boot Services are active (before ExitBootServices).
• We always over-allocate to satisfy alignment and store the original pointer just before the returned aligned block for correct deallocation.

Trait Implementations

impl GlobalAlloc for UefiBootAllocator

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.