I/O Calendar

Set of I/O-free Rust coroutines to manage calendars, based on io-fs and io-stream.

This library allows you to manage calendars using an I/O-agnostic approach, based on 3 concepts:

Coroutine

A coroutine is an I/O-free, resumable and composable state machine that emits I/O requests. A coroutine is considered terminated when it does not emit I/O requests anymore.

See available coroutines at ./src/coroutines.

Runtime

A runtime contains all the I/O logic, and is responsible for processing I/O requests emitted by coroutines.

See available runtimes at io-fs and io-stream.

Loop

The loop is the glue between coroutines and runtimes. It makes the coroutine progress while allowing runtime to process I/O.

Examples

See complete examples at ./examples.

List calendars from CalDAV server (sync)

use io_stream::runtimes::std::handle;
use io_calendar::caldav::coroutines::{list_calendars::ListCalendars, send::SendResult};

let mut arg = None;
let mut http = ListCalendars::new(&config);

let calendars = loop {
    match http.resume(arg.take()) {
        SendResult::Ok(res) => break res.body,
        SendResult::Err(err) => panic!("{err}"),
        SendResult::Io(io) => arg = Some(handle(&mut stream, io).unwrap()),
    }
};

println!("calendars: {calendars:#?}");

More examples

Have a look at projects built on the top of this library:

• Calendula: CLI to manage calendars.

Sponsoring

Special thanks to the NLnet foundation and the European Commission that helped the project to receive financial support from various programs:

• NGI Assure in 2022
• NGI Zero Entrust in 2023
• NGI Zero Core in 2024 (still ongoing)

If you appreciate the project, feel free to donate using one of the following providers: