Struct drone_core::heap::Pool

pub struct Pool { /* fields omitted */ }

The set of free memory blocks.

It operates by connecting unallocated regions of memory together in a linked list, using the first word of each unallocated region as a pointer to the next.

Methods

impl Pool

pub const fn new(address: usize, size: usize, capacity: usize) -> Self

Creates a new Pool.

pub fn size(&self) -> usize

Returns the block size.

pub fn alloc(&self) -> Option<NonNull<u8>>

Allocates one block of memory.

If this method returns Some(addr), then the addr returned will be non-null address pointing to the block. If this method returns None, then the pool is exhausted.

This operation is lock-free and has O(1) time complexity.

pub unsafe fn dealloc(&self, ptr: NonNull<u8>)

Deallocates the block referenced by ptr.

This operation is lock-free and has O(1) time complexity.

Safety

• ptr must point to a block previously allocated by alloc.
• ptr must not be used after deallocation.

Trait Implementations

impl Sync for Pool