Enum RocksDbOpenError 

#[non_exhaustive]
pub enum RocksDbOpenError {
    NoBaseDir,
    CreateDir(Error),
    Lock(DbLockError),
    EnvParse {
        var: &'static str,
        source: ParseIntError,
    },
    EnvNotPowerOfTwo {
        var: &'static str,
    },
    RocksDb(Error),
}

Why a RocksDb or RocksDbReadOnly could not be opened.

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.

NoBaseDir

The database path has no parent directory to create; only when opening for writing.

CreateDir(Error)

The parent directory of the database could not be created; only when opening for writing.

Lock(DbLockError)

The lock file next to the database could not be opened or locked; only when opening for writing.

EnvParse

A size override in the environment is not a number, or is too large for a usize.

Fields

var: &'static str

The environment variable.

source: ParseIntError

Why its value could not be parsed.

EnvNotPowerOfTwo

A size override in the environment is not a power of two.

Fields

var: &'static str

The environment variable.

RocksDb(Error)

RocksDB could not open the database.

Trait Implementations

impl Debug for RocksDbOpenError

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

Formats the value using the given formatter.

impl Display for RocksDbOpenError

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

Formats the value using the given formatter.

impl Error for RocksDbOpenError

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<DbLockError> for RocksDbOpenError

fn from(source: DbLockError) -> Self

Converts to this type from the input type.

impl From<Error> for RocksDbOpenError

fn from(source: Error) -> Self

Converts to this type from the input type.

impl From<Error> for RocksDbOpenError

fn from(source: Error) -> Self

Converts to this type from the input type.