Clokwerk is a simple scheduler, inspired by Python's Schedule and Ruby's clockwork. It uses a similar DSL for scheduling, rather than parsing cron strings.
By default, times and dates are relative to the local timezone, but the scheduler can be made to use a
different timezone using the Scheduler::with_tz constructor.
Since version 0.4, Clokwerk has also supported a separate AsyncScheduler, which can easily run asynchronous tasks concurrently.
```rust // Scheduler, and trait for .seconds(), .minutes(), etc. use clokwerk::{Scheduler, TimeUnits}; // Import week days and WeekDay use clokwerk::Interval::*; use std::thread; use std::time::Duration;
// Create a new scheduler let mut scheduler = Scheduler::new(); // or a scheduler with a given timezone let mut scheduler = Scheduler::withtz(chrono::Utc); // Add some tasks to it scheduler.every(10.minutes()).plus(30.seconds()).run(|| println!("Periodic task")); scheduler.every(1.day()).at("3:20 pm").run(|| println!("Daily task")); scheduler.every(Tuesday).at("14:20:17").andevery(Thursday).at("15:00").run(|| println!("Biweekly task"));
// Manually run the scheduler in an event loop
for _ in 1..10 {
scheduler.runpending();
thread::sleep(Duration::frommillis(10));
}
// Or run it in a background thread
let threadhandle = scheduler.watchthread(Duration::frommillis(100));
// The scheduler stops when thread_handle is dropped, or stop is called
threadhandle.stop();
```
See documentation for additional examples of usage.
cron syntax for scheduling.