Crate chrono_machines 

ChronoMachines - Pure Rust exponential backoff and retry library

This crate provides a lightweight, no_std compatible implementation of exponential backoff with full jitter for retry mechanisms.

Features

• Full Jitter: Prevents thundering herd problem
• no_std compatible: Works in embedded environments
• Zero allocation: Uses stack-only data structures
• Fast: Minimal overhead for delay calculations

Example

use chrono_machines::Policy;

let policy = Policy {
    max_attempts: 5,
    base_delay_ms: 100,
    multiplier: 2.0,
    max_delay_ms: 10_000,
};

// Use full jitter (1.0) - recommended for distributed systems
let delay = policy.calculate_delay(1, 1.0);
println!("Wait {}ms before retry", delay);

Re-exports

pub use backoff::fibonacci;

pub use backoff::BackoffPolicy;

pub use backoff::BackoffStrategy;

pub use backoff::ConstantBackoff;

pub use backoff::ExponentialBackoff;

pub use backoff::FibonacciBackoff;

pub use dsl::builder_for_policy;

pub use dsl::retry_with_policy;

pub use dsl::DslError;

pub use policy::PolicyRegistry;

pub use policy::clear_global_policies;

pub use policy::get_global_policy;

pub use policy::list_global_policies;

pub use policy::register_global_policy;

pub use policy::remove_global_policy;

pub use retry::RetryBuilder;

pub use retry::RetryContext;

pub use retry::RetryError;

pub use retry::RetryOutcome;

pub use retry::Retryable;

pub use retry::RetryableExt;

pub use sleep::StdSleeper;

pub use sleep::FnSleeper;

pub use sleep::Sleeper;

Modules

backoff

Backoff strategy implementations for retry mechanisms

dsl

Ergonomic helpers that mirror the high-level DSL available in the Ruby gem.

policy

Named policy management utilities.

retry

Retry mechanism with fluent builder API

sleep

Sleep abstraction for no_std compatibility

Structs

Policy

Retry policy configuration