Struct SecureAlloc

pub struct SecureAlloc;

An allocator which obtains a discrete number of virtual memory pages.

The virutal memory pages are flagged using mlock (VirtualLock on Windows) in order to restrict them to physical memory. When the allocation is released, the allocated memory is securely zeroed.

Trait Implementations

impl Allocator for SecureAlloc

fn allocate(&self, layout: Layout) -> Result<NonNull<[u8]>, AllocError>

Try to allocate a slice of memory within this allocator instance, returning the new allocation.

unsafe fn deallocate(&self, ptr: NonNull<u8>, layout: Layout)

Release an allocation produced by this allocator.

fn allocate_zeroed(&self, layout: Layout) -> Result<NonNull<[u8]>, AllocError>

Try to allocate a slice of memory within this allocator instance, returning the new allocation. The memory will be initialized with zeroes.

unsafe fn grow( &self, ptr: NonNull<u8>, old_layout: Layout, new_layout: Layout, ) -> Result<NonNull<[u8]>, AllocError>

Try to extend the size of an allocation to accomodate a new, larger layout.

unsafe fn grow_zeroed( &self, ptr: NonNull<u8>, old_layout: Layout, new_layout: Layout, ) -> Result<NonNull<[u8]>, AllocError>

Try to extend the size of an allocation to accomodate a new, larger layout. Fill the extra capacity with zeros.

unsafe fn shrink( &self, ptr: NonNull<u8>, old_layout: Layout, new_layout: Layout, ) -> Result<NonNull<[u8]>, AllocError>

Try to reduce the size of an allocation to accomodate a new, smaller layout.

fn by_ref(&self) -> &Self

where Self: Sized,

Obtain a reference to this allocator type.

impl AllocatorDefault for SecureAlloc

const DEFAULT: Self = Self

The constant initializer for this allocator.

impl Clone for SecureAlloc

fn clone(&self) -> SecureAlloc

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for SecureAlloc

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

Formats the value using the given formatter.

impl Default for SecureAlloc

fn default() -> SecureAlloc

Returns the “default value” for a type.

impl PartialEq for SecureAlloc

fn eq(&self, other: &SecureAlloc) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl AllocatorZeroizes for SecureAlloc

impl Copy for SecureAlloc

impl Eq for SecureAlloc

impl StructuralPartialEq for SecureAlloc