Enum StorageError 

pub enum StorageError {
    NotFound(String),
    AlreadyExists(String),
    TooLarge(u64),
    WriteFailed {
        offset: u64,
        source: Error,
    },
    Unsupported(&'static str),
    Other(Error),
}

Error produced by StorageBackend implementations.

Variants

NotFound(String)

The requested path does not exist.

AlreadyExists(String)

The requested path already exists and must not be overwritten.

TooLarge(u64)

The backend has insufficient capacity / the file is too large.

WriteFailed

A write failed mid-stream (e.g. resume offset mismatch).

Fields

offset: u64

Offset at which the write was attempted.

source: Error

Underlying cause.

Unsupported(&'static str)

The backend is not read-only writable, etc.

Other(Error)

Any other backend failure.

Implementations

impl StorageError

pub fn write_failed(offset: u64, source: Error) -> Self

Convenience constructor for a failed write.

Trait Implementations

impl Debug for StorageError

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

Formats the value using the given formatter.

impl Display for StorageError

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

Formats the value using the given formatter.

impl Error for StorageError

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<Error> for StorageError

fn from(source: Error) -> Self

Converts to this type from the input type.