Enum RetentionError 

pub enum RetentionError {
    Io(Error),
    UnreadableChain(PathBuf),
    BudgetUnmet {
        budget: u64,
        remaining: u64,
        protected_chain_heads: usize,
    },
}

Typed retention failure (CP-13 fix1 I4/M2).

Variants

Io(Error)

UnreadableChain(PathBuf)

A named-chain file could not be read or parsed: its head is UNKNOWN, so every destructive session operation fails closed.

BudgetUnmet

The disk budget could not be met after evicting every unprotected artifact (typed instead of a silent overshoot).

Fields

budget: u64

remaining: u64

protected_chain_heads: usize

Trait Implementations

impl Debug for RetentionError

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

Formats the value using the given formatter.

impl Display for RetentionError

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

Formats the value using the given formatter.

impl Error for RetentionError

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 RetentionError

fn from(e: Error) -> Self

Converts to this type from the input type.