Struct uefi::allocator::Allocator

pub struct Allocator;

Allocator which uses the UEFI pool allocation functions.

Only valid for as long as the UEFI boot services are available.

Trait Implementations

impl Debug for Allocator

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl GlobalAlloc for Allocator

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

Allocate memory using BootServices::allocate_pool. The allocation is of type MemoryType::LOADER_DATA for UEFI applications, MemoryType::BOOT_SERVICES_DATA for UEFI boot drivers and MemoryType::RUNTIME_SERVICES_DATA for UEFI runtime drivers.

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

Deallocate memory using BootServices::free_pool.

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 in bytes. The block is described by the given ptr pointer and layout.