skedge

skedge is a single-process job scheduler.

Define a work function:

fn job() {
println!("Hello, it's {}!", chrono::Local::now().to_rfc2822());
}

You can use up to six arguments:

fn greet(name: &str) {
println!("Hello, {}!", name);
}

Instantiate a Scheduler and schedule jobs:

# use skedge::{Scheduler, every, every_single};
# use chrono::Local;
# use std::time::Duration;
# use std::thread::sleep;
# fn job() {
#    println!("Hello, it's {}!", Local::now());
# }
# fn greet(name: &str) {
#     println!("Hello, {}!", name);
# }
# fn main() -> Result<(), Box<dyn std::error::Error>> {
let mut schedule = Scheduler::new();

every(10).seconds()?.run(&mut schedule, job)?;
every(10).minutes()?.run(&mut schedule, job)?;
every_single().hour()?.run(&mut schedule, job)?;
every_single().day()?.at("10:30")?.run(&mut schedule, job)?;
every(5).to(10)?.minutes()?.run(&mut schedule, job)?;
every_single().monday()?.run(&mut schedule, job)?;
every_single().wednesday()?.at("13:15")?.run(&mut schedule, job)?;
every_single().minute()?.at(":17")?.run(&mut schedule, job)?;
every(2)
.to(8)?
.seconds()?
.until(Local::now() + chrono::Duration::seconds(30))?
.run_one_arg(&mut schedule, greet, "Good-Looking")?;
#   Ok(())
# }

Note that you must use the appropriate run_x_args() method for job functions taking multiple arguments. In your main loop, you can use Scheduler::run_pending() to fire all scheduled jobs at the proper time:

# use skedge::Scheduler;
# let mut schedule = Scheduler::new();
loop {
if let Err(e) = schedule.run_pending() {
eprintln!("Error: {}", e);
}
std::thread::sleep(std::time::Duration::from_secs(1));
}