Enum LevelDbError 

#[non_exhaustive]
pub enum LevelDbError {
    Io {
        operation: &'static str,
        path: Option<PathBuf>,
        source: Error,
    },
    Corruption {
        path: Option<PathBuf>,
        message: String,
    },
    InvalidArgument {
        message: String,
    },
    Unsupported {
        feature: &'static str,
        message: String,
    },
    Compression {
        codec: &'static str,
        message: String,
    },
    Cancelled,
    ReadOnly,
    AlreadyExists {
        path: PathBuf,
    },
    NotFound {
        path: PathBuf,
    },
    LockPoisoned {
        operation: &'static str,
    },
    Join {
        message: String,
    },
}

Errors returned while opening, reading, writing, or repairing a database.

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.

Io

Filesystem or OS I/O failure.

Fields

operation: &'static str

Operation being performed when the error occurred.

path: Option<PathBuf>

Filesystem path involved in the operation, when known.

source: Error

Underlying operating-system error.

Corruption

On-disk data was malformed or failed validation.

Fields

path: Option<PathBuf>

Path to the file whose bytes failed validation, when known.

message: String

Human-readable corruption reason.

InvalidArgument

Caller supplied invalid options or input.

Fields

message: String

Human-readable validation failure.

Unsupported

The requested feature is disabled or not implemented.

Fields

feature: &'static str

Feature, codec, or behavior that is unavailable.

message: String

Human-readable explanation.

Compression

Compression or decompression failed.

Fields

codec: &'static str

Codec or table compression family being processed.

message: String

Human-readable codec error.

Cancelled

Scan cancelled through crate::ScanCancelFlag.

ReadOnly

A mutating operation was requested on a read-only database.

AlreadyExists

OpenOptions::error_if_exists rejected an existing database.

Fields

path: PathBuf

Existing database directory.

NotFound

The requested database or required metadata file was missing.

Fields

path: PathBuf

Missing database directory or metadata file.

LockPoisoned

An internal lock was poisoned.

Fields

operation: &'static str

Locking operation that observed poisoning.

Join

A blocking task failed to join in the optional async wrapper.

Fields

message: String

Human-readable join failure.

Implementations

impl LevelDbError

pub const fn kind(&self) -> ErrorKind

Returns the stable category of this error.

pub fn path(&self) -> Option<&Path>

Returns the filesystem path associated with this error, when known.

Trait Implementations

impl Debug for LevelDbError

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

Formats the value using the given formatter.

impl Display for LevelDbError

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

Formats the value using the given formatter.

impl Error for LevelDbError

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 LevelDbError

fn from(source: Error) -> Self

Converts to this type from the input type.