Enum CheckpointError 

pub enum CheckpointError {
    Io(Error),
    Serialization(String),
    Deserialization(String),
    SerializeError(Box<dyn Error + Send + Sync>),
    DeserializeError(Box<dyn Error + Send + Sync>),
    TooLarge {
        size: u64,
        limit: u64,
    },
    VersionMismatch {
        expected: u32,
        found: u32,
    },
    VersionTooNew(u32),
    VersionTooOld(u32),
    NotFound(String),
    Corrupted(String),
}

Error type for checkpoint operations

Variants

Io(Error)

IO error during checkpoint (native only)

Serialization(String)

Serialization error (message-only; retained for callers that do not have a structured source to attach).

Deserialization(String)

Deserialization error (message-only; retained for callers that do not have a structured source to attach).

SerializeError(Box<dyn Error + Send + Sync>)

Serialization failed while writing a checkpoint file.

Unlike CheckpointError::Serialization, this variant preserves the underlying error via std::error::Error::source, so callers can source()/downcast_ref() into the real cause (EV-89).

DeserializeError(Box<dyn Error + Send + Sync>)

Deserialization failed while reading a checkpoint file.

Unlike CheckpointError::Deserialization, this variant preserves the underlying error via std::error::Error::source, so callers can distinguish e.g. an EOF/truncation from a type mismatch (EV-89).

TooLarge

Checkpoint file exceeds the configured size limit.

Guards against unbounded allocation when deserializing a corrupted or hostile checkpoint file (EV-48).

Fields

size: u64

Size of the checkpoint payload in bytes.

limit: u64

Configured maximum in bytes.

VersionMismatch

Checkpoint version mismatch

Fields

expected: u32

found: u32

VersionTooNew(u32)

Checkpoint version is too new

VersionTooOld(u32)

Checkpoint version is too old

NotFound(String)

Checkpoint file not found

Corrupted(String)

Corrupted checkpoint data

Trait Implementations

impl Debug for CheckpointError

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

Formats the value using the given formatter.

impl Display for CheckpointError

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

Formats the value using the given formatter.

impl Error for CheckpointError

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<CheckpointError> for EvolutionError

fn from(source: CheckpointError) -> Self

Converts to this type from the input type.

impl From<Error> for CheckpointError

fn from(source: Error) -> Self

Converts to this type from the input type.