Enum SurfaceError 

#[non_exhaustive]
pub enum SurfaceError {
    Invalid {
        field: &'static str,
    },
    Allocate(DumbError),
    Empty,
    Export(Errno),
}

Why a surface could not be created or used.

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.

Invalid

A dimension was zero.

Fields

field: &'static str

Which one.

Allocate(DumbError)

The allocation failed.

Empty

The surface holds no buffer.

A default surface, or one that has been forgotten. Distinct from an allocation failure: nothing went wrong, there is simply nothing here.

Export(Errno)

The kernel refused to export the buffer as a DMA-BUF. Carries its errno, as the reference reports it.

Trait Implementations

impl Debug for SurfaceError

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

Formats the value using the given formatter.

impl Display for SurfaceError

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

Formats the value using the given formatter.

impl Error for SurfaceError

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.

impl From<DumbError> for SurfaceError

fn from(source: DumbError) -> Self

Converts to this type from the input type.