Struct multiple_heaps::MultipleHeaps

pub struct MultipleHeaps { /* private fields */ }

An allocator that contains multiple heaps. The heap that is used on each allocation is determined by a key. Currently the apic id is used as the key.

Implementations

impl MultipleHeaps

pub fn empty() -> MultipleHeaps

Trait Implementations

impl GlobalAlloc for MultipleHeaps

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

Allocates the given layout from the heap of the core the task is currently running on. If the per-core heap is not initialized, then an error is returned.

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

Deallocates the memory at the address given by ptr. Memory is returned to the per-core heap it was allocated from.

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.