Struct axalloc::GlobalPage

pub struct GlobalPage { /* private fields */ }

A RAII wrapper of contiguous 4K-sized pages.

It will automatically deallocate the pages when dropped.

Implementations

impl GlobalPage

pub fn alloc() -> AxResult<Self>

Allocate one 4K-sized page.

pub fn alloc_zero() -> AxResult<Self>

Allocate one 4K-sized page and fill with zero.

pub fn alloc_contiguous(num_pages: usize, align_pow2: usize) -> AxResult<Self>

Allocate contiguous 4K-sized pages.

pub fn start_vaddr(&self) -> VirtAddr

Get the start virtual address of this page.

pub fn start_paddr<F>(&self, virt_to_phys: F) -> PhysAddr

where F: FnOnce(VirtAddr) -> PhysAddr,

Get the start physical address of this page.

pub fn size(&self) -> usize

Get the total size (in bytes) of these page(s).

pub fn as_ptr(&self) -> *const u8

Convert to a raw pointer.

pub fn as_mut_ptr(&mut self) -> *mut u8

Convert to a mutable raw pointer.

pub fn fill(&mut self, byte: u8)

Fill self with byte.

pub fn zero(&mut self)

Fill self with zero.

pub fn as_slice(&self) -> &[u8]

Forms a slice that can read data.

pub fn as_slice_mut(&mut self) -> &mut [u8]

Forms a mutable slice that can write data.

Trait Implementations

impl Debug for GlobalPage

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Drop for GlobalPage

fn drop(&mut self)

Executes the destructor for this type.