Struct RustAlloc

#[repr(C)]
pub struct RustAlloc { /* private fields */ }

Rust’s GlobalAlloc, annotating its yielded pointers in such a way that the allocated pointers can be safely freed from other binaries.

Implementations

impl RustAlloc

where Struct<[u8; 0]>: IStable, [u8; 0]: IStable,

pub const fn has_optimal_layout() -> bool

Returns true if the layout for RustAlloc is smaller or equal to that Rust would have generated for it.

impl RustAlloc

pub const fn new() -> Self

Constructs the allocator.

Trait Implementations

impl Clone for RustAlloc

fn clone(&self) -> RustAlloc

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Default for RustAlloc

fn default() -> Self

Returns the “default value” for a type.

impl IAlloc for RustAlloc

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

Allocates at least as much memory as requested by layout, ensuring the requested alignment is respected.

unsafe fn free(&mut self, ptr: *mut ())

Frees the allocation

unsafe fn realloc( &mut self, ptr: *mut (), _prev_layout: Layout, new_size: usize, ) -> *mut ()

Reallocates ptr, ensuring that it has enough memory for the newly requested layout.

impl IStable for RustAlloc

where Struct<[u8; 0]>: IStable, [u8; 0]: IStable,

const REPORT: &'static TypeReport

A compile-time generated report of the fields of the type, allowing for compatibility inspection.

const ID: u64 = 8_860_189_847_171_676_008u64

A stable (and ideally unique) identifier for the type. Often generated using crate::report::gen_id, but can be manually set.

type ForbiddenValues = <Struct<[u8; 0]> as IStable>::ForbiddenValues

The values that the annotated type cannot occupy.

type UnusedBits = <Struct<[u8; 0]> as IStable>::UnusedBits

The padding bits in the annotated types

type Size = <Struct<[u8; 0]> as IStable>::Size

The size of the annotated type in bytes.

type Align = <Struct<[u8; 0]> as IStable>::Align

The alignment of the annotated type in bytes.

type HasExactlyOneNiche = <Struct<[u8; 0]> as IStable>::HasExactlyOneNiche

Allows the detection of whether or not core::option::Options are stable:

type ContainsIndirections = <Struct<[u8; 0]> as IStable>::ContainsIndirections

Whether or not the type contains indirections (pointers, indices in independent data-structures…)

fn size() -> usize

Returns the size of the type.

fn align() -> usize

Returns the alignment of the type.

unsafe fn is_invalid(ptr: *const u8) -> bool

Returns true if ptr points to memory that cannot be a valid value of Self.

impl Copy for RustAlloc