Struct swim_mem::alloc::ExtentList

#[repr(C)]
pub struct ExtentList<'a> { /* fields omitted */ }

Lock-free allocator of page-aligned memory extents from some address range.

Methods

impl<'a> ExtentList<'a>

pub fn size(&self) -> usize

Returns the total number of bytes in this address space.

pub fn live(&self) -> usize

Returns the number of live allocations from this address space.

pub fn used(&self) -> usize

Returns the number of bytes currently allocated from this address space.

pub unsafe fn grow(&self, new_size: usize)

Extends this address space to new_size bytes in length by inserting a free extent for the delta between the current size and the new size.

Trait Implementations

impl<'a> Heap<'a> for ExtentList<'a>

unsafe fn alloc(&self, layout: Layout) -> Result<Block<'a>, HeapError>

Allocates a new memory block sized and aligned to at least Layout; returns None if the allocation fails.

unsafe fn dealloc(&self, block: Block<'a>) -> usize

Deallocates a memory block previously allocated by alloc. Returns the number of freed bytes.