Enum ModesetError 

#[non_exhaustive]
pub enum ModesetError {
    NoModes,
    NothingToWaitOn,
    TimedOut,
    InvalidSource,
    Io(Errno),
}

Errors from mode selection and page-flip dispatch.

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.

NoModes

No usable mode. errc::no_such_device.

NothingToWaitOn

Nothing to wait on: the dispatcher holds no DRM descriptor and no foreign sources. errc::bad_file_descriptor.

Surfaced up front rather than blocking forever on an empty epoll.

TimedOut

The wait budget elapsed with no events. errc::timed_out.

Never produced by an interrupted wait — see PageFlip::dispatch and invariant 3.

InvalidSource

A descriptor was rejected: negative, or already registered. errc::invalid_argument.

Io(Errno)

An underlying syscall failed.

Trait Implementations

impl Debug for ModesetError

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

Formats the value using the given formatter.

impl Display for ModesetError

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

Formats the value using the given formatter.

impl Error for ModesetError

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 ModesetError

fn from(source: Errno) -> Self

Converts to this type from the input type.