Enum ExternalError 

#[non_exhaustive]
pub enum ExternalError {
    Invalid {
        reason: &'static str,
    },
    Io(Errno),
    Retired,
}

Why wrapping an external buffer failed.

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, format, or plane description was unusable.

Fields

reason: &'static str

What was wrong.

Io(Errno)

An ioctl or syscall failed — duplicating or importing a descriptor, or registering the framebuffer.

Retired

The key was retired and its old import is not torn down yet, so the frame was not taken. Try again once a later frame has displaced it.

Trait Implementations

impl Debug for ExternalError

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

Formats the value using the given formatter.

impl Display for ExternalError

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

Formats the value using the given formatter.

impl Error for ExternalError

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<Errno> for ExternalError

fn from(source: Errno) -> Self

Converts to this type from the input type.

impl From<ExternalError> for GbmSourceError

fn from(source: ExternalError) -> Self

Converts to this type from the input type.