Module policy 

Pure backoff policy — no clock, no randomness source, no I/O.

decide is a total function of its arguments: the caller owns the clock (passing elapsed) and the randomness (passing jitter_unit), so every backoff assertion in the test suite is exact and no test ever sleeps. Execution lives in the adapter layers that call this.

Structs

RetryPolicy

Bounds on a retry sequence.

Enums

GiveUpReason

Why a retry sequence stopped.

RetryDecision

The outcome of consulting the policy after a failed attempt.

Functions

decide

Decide what to do after attempt attempts have failed.

duration_ms 🔒

Saturating millisecond view of a duration.

full_jitter 🔒

Full jitter over an exponentially growing, capped window.

honour_server_hint 🔒

Server hint as a floor, clamped to max_backoff, plus decorrelating jitter.

scale 🔒

Multiply a duration by a unit fraction, clamping the fraction to [0.0, 1.0].