Enum WaitForError 

#[non_exhaustive]
pub enum WaitForError {
    Poll {
        error: PollError,
        elapsed: Duration,
    },
    MissingParentDirectory {
        path: Utf8PathBuf,
        parent: Utf8PathBuf,
        elapsed: Duration,
    },
    ParentNotADirectory {
        path: Utf8PathBuf,
        parent: Utf8PathBuf,
        elapsed: Duration,
    },
    TimedOut {
        path: Utf8PathBuf,
        elapsed: Duration,
    },
}

A permanent error returned by wait_for and wait_for_blocking.

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.

Poll

A poll operation returned a permanent error.

Fields

error: PollError

The error that occurred.

elapsed: Duration

How long the driver had been waiting when the error occurred.

MissingParentDirectory

The parent directory of the port file does not exist.

Fields

path: Utf8PathBuf

The path to the port file.

parent: Utf8PathBuf

The parent directory that does not exist.

elapsed: Duration

How long the driver had been waiting when the error occurred.

ParentNotADirectory

The parent path of the port file exists but is not a directory.

This is most likely to occur on Windows. On Unix-like platforms, this condition usually surfaces as WaitForError::Poll with PollError::Io instead, because reading the port file itself fails with a “not a directory” error.

Fields

path: Utf8PathBuf

The path to the port file.

parent: Utf8PathBuf

The parent path that is not a directory.

elapsed: Duration

How long the driver had been waiting when the error occurred.

TimedOut

The timeout was reached.

Fields

path: Utf8PathBuf

The path of the port file that was being waited for.

elapsed: Duration

How long the driver had been waiting when the error occurred.

Implementations

impl WaitForError

pub fn path(&self) -> &Utf8Path

Returns the path of the port file that was being waited for.

pub fn elapsed(&self) -> Duration

Returns how long the driver had been waiting when the error occurred.

Trait Implementations

impl Debug for WaitForError

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

Formats the value using the given formatter.

impl Display for WaitForError

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

Formats the value using the given formatter.

impl Error for WaitForError

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.