Struct RetryPolicy 

pub struct RetryPolicy {
    pub max_attempts: u8,
    pub backoff_ms_min: u32,
    pub backoff_ms_max: u32,
    pub backoff_multiplier: f32,
    pub backoff_cap_ms: u32,
    pub per_attempt_timeout: Duration,
    pub skip_cad: bool,
}

Policy for crate::Dongle::tx_with_retry.

Defaults match the example in PROTOCOL.md §C.5.5: 3 attempts, randomized 20-100 ms backoff on the first retry, doubling up to 500 ms cap. Only CHANNEL_BUSY (CAD) and EBUSY (TX queue full) trigger a retry — every other error propagates immediately.

Fields

max_attempts: u8

backoff_ms_min: u32

Lower bound of the initial randomized backoff (ms).

backoff_ms_max: u32

Upper bound of the initial randomized backoff (ms). The jitter range is [0, backoff_ms_max - backoff_ms_min].

backoff_multiplier: f32

Multiplier applied to the backoff floor on each subsequent retry (standard exponential backoff).

backoff_cap_ms: u32

Absolute ceiling on the backoff floor (ms). Prevents runaway delays at high attempt counts.

per_attempt_timeout: Duration

Per-attempt command deadline. Must accommodate CAD + airtime on the slowest configuration likely to be in play.

skip_cad: bool

If true, bypass CAD (sends skip_cad = 1). Usually false — retrying without CAD defeats the purpose of the retry.

Trait Implementations

impl Clone for RetryPolicy

fn clone(&self) -> RetryPolicy

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for RetryPolicy

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

Formats the value using the given formatter.

impl Default for RetryPolicy

fn default() -> Self

Returns the “default value” for a type.