Struct RetryConfig 

pub struct RetryConfig {
    pub max_attempts: usize,
    pub initial_delay: Duration,
    pub max_delay: Duration,
    pub backoff_factor: f64,
    pub connection_timeout: Duration,
}

Configuration for connection retry behavior.

Fields

max_attempts: usize

Maximum number of retry attempts. Set to usize::MAX for infinite retries (daemon mode).

initial_delay: Duration

Initial delay before first retry.

max_delay: Duration

Maximum delay between retries (ceiling for exponential backoff).

backoff_factor: f64

Backoff multiplier (e.g., 2.0 = double delay each retry).

connection_timeout: Duration

Timeout for each individual connection attempt.

Implementations

impl RetryConfig

pub fn startup() -> Self

Fast-fail retry for initial startup connection.

Attempts connection 20 times with exponential backoff, failing after approximately 30 seconds total. Use this during daemon startup to detect configuration errors quickly.

Backoff Schedule

Attempt  Delay     Cumulative
-------  -----     ----------
1        500ms     500ms
2        750ms     1.25s
3        1.12s     2.37s
...
20       30s       ~45s (total)

pub fn daemon() -> Self

Infinite retry for long-running daemon (never give up!).

Retries forever with exponential backoff capped at 5 minutes. Use this for runtime reconnection after initial startup succeeds.

Backoff Schedule

Attempt  Delay     Reasoning
-------  -----     ---------
1        1s        Immediate transient retry
2        2s        Brief network blip
3        4s        DNS propagation
4        8s        Container restart
5        16s       Service recovery
6        32s       Load balancer failover
7        64s       Datacenter maintenance
8        128s      Extended outage
9        256s      Multi-hour incident
10+      300s      Cap at 5 minutes, retry forever

Real-world example: DNS outages can last 24+ hours. This ensures the daemon automatically recovers without manual restart.

pub fn testing() -> Self

Fast-fail retry for tests.

Fails quickly to avoid slow tests.

pub fn delay_for_attempt(&self, attempt: usize) -> Duration

Calculate delay for a given attempt number (1-indexed).

Trait Implementations

impl Clone for RetryConfig

fn clone(&self) -> RetryConfig

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for RetryConfig

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

Formats the value using the given formatter.

impl Default for RetryConfig

fn default() -> Self

Returns the “default value” for a type.