Module peer 

Stores and evaluates per-server federation reachability.

Each failure is a blind write keyed by (server, bucket), with repeated failures in one window deliberately coalescing; current row values retain the classification and exact failure time. A scan derives the latest anchor and surviving bucket span before applying the retry curve. Successful outbound or inbound contact clears the server prefix. The bucket width comes from sender_timeout, keeping this gate aligned with sender backoff.

Structs

Backoff 🔒

Latest-failure state feeding the pure attempt_verdict decision.

PeerBackoff

Summarizes a peer’s current failure streak for administration.

Streak 🔒

Fold state accumulated over one server’s failure rows.

Enums

Classification

Permanence classification supplied alongside a failure.

ShouldAttempt

Verdict returned by super::Service::should_attempt.

Constants

MAX_BACKOFF 🔒

Caps peer-status backoff delays.

Functions

attempt_verdict 🔒

Computes a retry verdict from a peer’s latest failure state.

classify 🔒

Decodes the classification byte from a peer-status value.

classify_error 🔒

Classifies a failed federation attempt for the peer-reachability store.

failure_secs 🔒

Decodes the recorded failure instant in seconds since the epoch.

fold_streak 🔒

Folds one failure row into a server’s running streak.

is_content_rejection

Whether a failed federation attempt is a content rejection from a reachable peer, the one failure the peer-reachability store does not record.