13 unstable releases (3 breaking)
0.3.0 | Sep 20, 2024 |
---|---|
0.2.0 | Sep 12, 2024 |
0.1.4 | Aug 22, 2023 |
0.1.3 | May 30, 2022 |
0.0.2 | Aug 31, 2021 |
#116 in Concurrency
244 downloads per month
81KB
2K
SLoC
skedge
Rust single-process scheduling. Ported from schedule
for Python, in turn inspired by clockwork
(Ruby), and "Rethinking Cron" by Adam Wiggins.
Usage
Documentation can be found on docs.rs.
This library uses the Builder pattern to define jobs. Instantiate a fresh Scheduler
, then use the every()
and every_single()
functions to begin defining a job. Finalize configuration by calling Job::run()
to add the new job to the scheduler. The Scheduler::run_pending()
method is used to fire any jobs that have arrived at their next scheduled run time. Currently, precision can only be specified to the second, no smaller.
use jiff::{ToSpan, Zoned};
use skedge::{every, Scheduler};
use std::thread::sleep;
use std::time::Duration;
fn greet(name: &str) {
let now = Zoned::now();
println!("Hello {name}, it's {now}!");
}
fn main() -> Result<(), Box<dyn std::error::Error>> {
let mut schedule = Scheduler::new();
every(2)
.to(8)?
.seconds()?
.until(Zoned::now().checked_add(30.seconds()).unwrap())?
.run_one_arg(&mut schedule, greet, "Cool Person")?;
let now = Zoned::now();
println!("Starting at {now}");
loop {
if let Err(e) = schedule.run_pending() {
eprintln!("Error: {e}");
}
sleep(Duration::from_secs(1));
}
}
Check out the example script to see more configuration options. Try cargo run --example readme
or cargo run --example basic
to see it in action.
CFFI
There is an experimental C foreign function interface, which is feature-gated and not included by default. To build the library with this feature, use cargo build --features ffi
. See the Makefile and examples/ffi/c directory for details on using this library from C. Execute make run
to build and execute the included example C program. It currently only supports work functions which take no arguments.
Development
Clone this repo. See CONTRIBUTING.md
for contribution guidelines.
Dependencies
- Stable Rust: The default stable toolchain is fine. Obtainable via
rustup
using the instructions at this link.
Crates
- chrono - Date and time handling
- log - Logging
- pretty_env_logger - Pretty logging
- lazy_static - Lazily evaluated statics
- rand - Random number generation
- regex - Regular expressions
- thiserror - Error derive macro
Development-Only
- pretty_assertions - Colorful assertion output
Dependencies
~7MB
~118K SLoC