Struct Manager

pub struct Manager(/* private fields */);

A wrapper type that adapts any type implementing Allocator_trait to the standard Rust GlobalAlloc trait.

This enables custom allocators that implement the Xila-specific Allocator_trait to be used as the global memory allocator for Rust’s allocation system.

Implementations

impl Manager

pub const fn new(allocator: &'static dyn ManagerTrait) -> Self

Creates a new instance of Allocator_type wrapping the provided allocator.

Parameters

• Allocator - The allocator to wrap

Returns

A new instance of Allocator_type containing the provided allocator.

Trait Implementations

impl GlobalAlloc for Manager

Implementation of the standard library’s GlobalAlloc trait for any wrapped type that implements Allocator_trait.

This implementation delegates the standard allocation operations to the wrapped allocator’s methods, converting between Rust’s and Xila’s allocation types.

Safety

The implementation upholds the safety guarantees required by GlobalAlloc:

• Memory is properly aligned according to the layout
• Deallocation uses the same layout that was used for allocation

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

Allocates memory as described by the given layout.

unsafe fn dealloc(&self, pointer: *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.