Enum PollOutcome 

pub enum PollOutcome {
    Updated {
        new_entries: u64,
    },
    NotModified,
    Failed {
        backoff: Duration,
        kind: FailureKind,
        detail: String,
    },
}

The outcome of polling a single feed. Lets the scheduler decide how to reschedule (and lets tests assert what happened) without inspecting the DB.

Variants

Updated

The feed was fetched, parsed, and stored. new_entries is the number of entries inserted or updated by this poll.

Fields

new_entries: u64

NotModified

The server returned 304 Not Modified — nothing changed, nothing stored.

Failed

The fetch or parse failed; the feed was left intact and skipped. Carries the suggested backoff before the next attempt. Never a panic.

kind and detail are the reason, and they exist because their absence cost a production investigation. Until #159 the error was logged here and discarded, so feeds recorded that a feed was failing and never why — which is how sixty feeds broken by our own 304 handling looked exactly like sixty dead blogs. kind is a small closed vocabulary so failures can be counted by cause; detail is the message for a human reading one row.

Fields

backoff: Duration

kind: FailureKind

detail: String

Trait Implementations

impl Clone for PollOutcome

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PollOutcome

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

Formats the value using the given formatter.

impl Eq for PollOutcome

impl PartialEq for PollOutcome

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for PollOutcome