lmdb

Enum Error

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pub enum Error {
Show 21 variants KeyExist, NotFound, PageNotFound, Corrupted, Panic, VersionMismatch, Invalid, MapFull, DbsFull, ReadersFull, TlsFull, TxnFull, CursorFull, PageFull, MapResized, Incompatible, BadRslot, BadTxn, BadValSize, BadDbi, Other(c_int),
}
Expand description

An LMDB error kind.

Variants§

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KeyExist

key/data pair already exists.

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NotFound

key/data pair not found (EOF).

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PageNotFound

Requested page not found - this usually indicates corruption.

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Corrupted

Located page was wrong type.

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Panic

Update of meta page failed or environment had fatal error.

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VersionMismatch

Environment version mismatch.

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Invalid

File is not a valid LMDB file.

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MapFull

Environment mapsize reached.

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DbsFull

Environment maxdbs reached.

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ReadersFull

Environment maxreaders reached.

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TlsFull

Too many TLS keys in use - Windows only.

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TxnFull

Txn has too many dirty pages.

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CursorFull

Cursor stack too deep - internal error.

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PageFull

Page has not enough space - internal error.

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MapResized

Database contents grew beyond environment mapsize.

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Incompatible

MDB_Incompatible: Operation and DB incompatible, or DB flags changed.

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BadRslot

Invalid reuse of reader locktable slot.

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BadTxn

Transaction cannot recover - it must be aborted.

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BadValSize

Unsupported size of key/DB name/data, or wrong DUP_FIXED size.

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BadDbi

The specified DBI was changed unexpectedly.

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Other(c_int)

Other error.

Implementations§

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impl Error

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pub fn from_err_code(err_code: c_int) -> Error

Converts a raw error code to an Error.

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pub fn to_err_code(&self) -> c_int

Converts an Error to the raw error code.

Trait Implementations§

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impl Clone for Error

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fn clone(&self) -> Error

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for Error

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

Formats the value using the given formatter. Read more
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impl Display for Error

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

Formats the value using the given formatter. Read more
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impl Error for Error

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fn description(&self) -> &str

👎Deprecated since 1.42.0: use the Display impl or to_string()
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fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any. Read more
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fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0: replaced by Error::source, which can support downcasting
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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. Read more
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impl PartialEq for Error

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fn eq(&self, other: &Error) -> bool

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl Copy for Error

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impl Eq for Error

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impl StructuralPartialEq for Error

Auto Trait Implementations§

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impl Freeze for Error

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impl RefUnwindSafe for Error

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impl Send for Error

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impl Sync for Error

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impl Unpin for Error

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impl UnwindSafe for Error

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dst: *mut T)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dst. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T> ToString for T
where T: Display + ?Sized,

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default fn to_string(&self) -> String

Converts the given value to a String. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.