Enum MemoryError 

pub enum MemoryError {
    AclLayoutUnsupported,
    AutoincrementOverflow(String),
    ConstraintViolation(String),
    DataTooLarge {
        page_size: u64,
        requested: u64,
    },
    DecodeError(DecodeError),
    FailedToAllocatePage,
    UnclaimedPagesFull {
        capacity: u32,
    },
    IndexNotFound(Vec<String>),
    NameCollision {
        candidate: String,
        existing: String,
    },
    EntryNotFound,
    KeyTooLarge {
        size: u64,
        max: u64,
    },
    OffsetNotAligned {
        offset: u16,
        alignment: u16,
    },
    OutOfBounds,
    SegmentationFault {
        page: u32,
        offset: u16,
        data_size: u64,
        page_size: u64,
    },
    ProviderError(String),
}

An enum representing possible memory-related errors.

Variants

AclLayoutUnsupported

Error when the persisted ACL page carries an unsupported layout version. Returned by crate::dbms::acl decoders.

AutoincrementOverflow(String)

Error when an autoincrement column has reached its maximum value.

ConstraintViolation(String)

Error when a constraint prevents the requested operation.

DataTooLarge

Error when the data to be written is too large for the page.

Fields

page_size: u64

requested: u64

DecodeError(DecodeError)

Error when failing to decode data from bytes.

FailedToAllocatePage

Error when failing to allocate a new page.

UnclaimedPagesFull

Error when the unclaimed-pages ledger has no room for another entry.

Fields

capacity: u32

Maximum number of pages the ledger can hold.

IndexNotFound(Vec<String>)

Error when no index exists for the requested columns.

NameCollision

Error when registering a table whose name hash collides with an already-registered table of a different name.

Fields

candidate: String

Name of the table being registered.

existing: String

Name of the already-registered table that produced the same hash.

EntryNotFound

Error when an index entry cannot be located.

KeyTooLarge

Error when a single key cannot fit into a node page.

Fields

size: u64

max: u64

OffsetNotAligned

Fields

offset: u16

alignment: u16

OutOfBounds

Error when attempting to access stable memory out of bounds.

SegmentationFault

Error when attempting to write out of the allocated page.

Fields

page: u32

offset: u16

data_size: u64

page_size: u64

ProviderError(String)

Error from the underlying memory provider.

Trait Implementations

impl CandidType for MemoryError

fn _ty() -> Type

fn _ty_doc() -> TypeDoc

fn id() -> TypeId

fn idl_serialize<__S>( &self, __serializer: __S, ) -> Result<(), <__S as Serializer>::Error>

where __S: Serializer,

fn ty() -> Type

impl Debug for MemoryError

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for MemoryError

fn deserialize<__D>( __deserializer: __D, ) -> Result<MemoryError, <__D as Deserializer<'de>>::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for MemoryError

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

Formats the value using the given formatter.

impl Error for MemoryError

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 MemoryError

fn from(err: Error) -> MemoryError

Converts to this type from the input type.

impl From<FromUtf8Error> for MemoryError

fn from(err: FromUtf8Error) -> MemoryError

Converts to this type from the input type.

impl From<MemoryError> for DbmsError

fn from(source: MemoryError) -> DbmsError

Converts to this type from the input type.

impl From<TryFromSliceError> for MemoryError

fn from(err: TryFromSliceError) -> MemoryError

Converts to this type from the input type.

impl Serialize for MemoryError

fn serialize<__S>( &self, __serializer: __S, ) -> Result<<__S as Serializer>::Ok, <__S as Serializer>::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.