Enum Error 

pub enum Error {
    FileOpen(PathBuf, Error),
    Mmap(Error),
    PathNotDir,
    RecordExists(Vec<u8>),
    DataFileDamaged,
    SeqNoIndexDamaged,
    Extend(Error),
    Flush(Error),
    Metadata(Error),
    Protect(Error),
}

Datbase error.

Variants

FileOpen(PathBuf, Error)

Failed to open file.

Mmap(Error)

Failed to create mmap.

PathNotDir

Database path already exists and does not point to a directory

RecordExists(Vec<u8>)

The record with this key already exists.

DataFileDamaged

Records in the data file are incorrect.

SeqNoIndexDamaged

Sequential number index is broken

Extend(Error)

Failed to extend a file

Flush(Error)

Failed to flush database records to disk

Metadata(Error)

Failed to get file metadata

Protect(Error)

Failed to make a memory mapping page immutable

Trait Implementations

impl Debug for Error

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

Formats the value using the given formatter.

impl Display for Error

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

Formats the value using the given formatter.

impl Error for Error

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.