Enum RestorePolicy 

#[non_exhaustive]
pub enum RestorePolicy {
    None,
    SavedCrtc,
}

What to leave on screen when the backend goes away.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

None

Leave the last committed frame up.

SavedCrtc

Put back the CRTC configuration captured at create.

What a display board wants on teardown: the console comes back rather than the screen freezing on whatever was committed last.

Trait Implementations

impl Clone for RestorePolicy

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for RestorePolicy

impl Debug for RestorePolicy

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

Formats the value using the given formatter.

impl Default for RestorePolicy

fn default() -> Self

Returns the “default value” for a type.

impl Eq for RestorePolicy

impl PartialEq for RestorePolicy

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for RestorePolicy