Struct PoolAllocator 

pub struct PoolAllocator { /* private fields */ }

kernel pool allocator

Implementations

impl PoolAllocator

pub const fn new(pool_type: PoolType, tag: PoolTag) -> Self

create new pool allocator with specified type and tag

pub const fn non_paged() -> Self

create non-paged allocator

pub const fn paged() -> Self

create paged allocator

pub fn allocate(&self, size: usize) -> KmResult<NonNull<u8>>

allocate memory from pool

pub fn allocate_zeroed(&self, size: usize) -> KmResult<NonNull<u8>>

allocate zeroed memory from pool

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

free previously allocated memory

Safety

ptr must have been allocated by this allocator (or one with same tag)

pub unsafe fn reallocate( &self, old_ptr: NonNull<u8>, old_size: usize, new_size: usize, ) -> KmResult<NonNull<u8>>

reallocate memory (allocate new, copy, free old)

Safety

old_ptr must have been allocated by this allocator