Enum FailureKind 

pub enum FailureKind {
    Fetch,
    Status,
    Body,
    Parse,
}

Why a poll failed, as a closed set.

Closed on purpose: the point is to count failures by cause, and a free-text kind cannot be counted. The detail string carries whatever else matters.

Variants

Fetch

The request never produced a response — DNS, TLS, timeout, connection refused, or a refusal by the SSRF guard.

Status

A response arrived with a non-success status.

Body

The body was too large, or reading it failed part-way.

Parse

The body arrived and is not a feed this parser can read.

Implementations

impl FailureKind

pub const ALL: [Self; 4]

Every variant, so a test can assert over the whole set rather than a list that drifts when a variant is added.

pub fn as_str(self) -> &'static str

The stable string stored in feeds.last_error_kind and aggregated on /stats. Changing one of these silently rewrites history in the aggregate, so they are spelled out rather than derived from the variant.

pub fn parse(raw: &str) -> Option<Self>

Read back a persisted last_error_kind. None for anything this version does not know, so a row written by a newer build is not silently attributed to a cause this one recognises — the same contract crate::metrics::Backend::parse keeps for the same reason.

Trait Implementations

impl Clone for FailureKind

fn clone(&self) -> FailureKind

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for FailureKind

impl Debug for FailureKind

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

Formats the value using the given formatter.

impl Eq for FailureKind

impl PartialEq for FailureKind

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

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for FailureKind