Struct ProtectionKeys 

pub struct ProtectionKeys { /* private fields */ }

Protection keys instance which is needed to create regions.

NOTE: You probably should always reuse it for creating regions because there are only 15 available keys in system

Implementations

impl ProtectionKeys

pub fn is_supported() -> bool

Checks whether protection keys are supported.

See https://www.felixcloutier.com/x86/wrpkru

pub fn new(require_protected: bool) -> Result<Arc<Self>, ProtectionError>

Creates protection keys instance.

Requirements to successfully create keys:

On failure will create a keys stub if require_protected is false, returns an error otherwise.

pub fn make_region<T>( self: &Arc<Self>, initial: T, ) -> Result<Arc<ProtectedRegion<T>>, ProtectionError>

where T: Sized,

Creates protected region.

Arc with protected keys is cloned so it is safe to keep only the region.

pub fn is_empty(&self) -> bool

Whether protection keys were allocated

Trait Implementations

impl Default for ProtectionKeys

fn default() -> ProtectionKeys

Returns the “default value” for a type.

impl Drop for ProtectionKeys

fn drop(&mut self)

Executes the destructor for this type.