Struct nolock::allocator::lrmalloc::Allocator

pub struct Allocator { /* private fields */ }

The actual Allocator Struct, which can be used for allocating and freeing memory

Implementations

impl Allocator

pub const fn new() -> Self

Creates a new Instance of the Allocator

Note

All Instances of the Allocator share some amount of Data, so they are currently not independant of each other. You should only create a single Instance for use as the Global-Allocator of your program

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

Allocates Memory for the given Layout using this allocator

Safety

The caller needs to ensure that the given Memory Layout is valid

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

Deallocates the Memory for the given Ptr with the given Layout

Safety

The Caller needs to ensure that the given Ptr was given out by this allocator and the given Layout matches the layout that was used when obtaining the Ptr

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 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.