Trait PlatformAlloc 

pub trait PlatformAlloc {
    // Required methods
    fn alloc(size: usize) -> *mut c_void;
    fn realloc(ptr: *mut c_void, size: usize) -> *mut c_void;
    fn dealloc(ptr: *mut c_void);

    // Provided methods
    fn heap_used_bytes() -> usize { ... }
    fn heap_total_bytes() -> usize { ... }
}

Heap memory allocation.

Required Methods

fn alloc(size: usize) -> *mut c_void

Allocate size bytes. Returns null on failure.

fn realloc(ptr: *mut c_void, size: usize) -> *mut c_void

Reallocate a previously allocated block. Returns null on failure.

fn dealloc(ptr: *mut c_void)

Free a previously allocated block.

Provided Methods

fn heap_used_bytes() -> usize

Phase 230 Z5 / RFC-0034 D7 — bytes currently allocated from the platform heap. The true unified figure where the platform owns one kernel heap shared by the C side (alloc) and the Rust #[global_allocator]. Default 0 = “unknown / not instrumented”.

fn heap_total_bytes() -> usize

Total managed heap size in bytes (used + free), or 0 if unknown.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors