Crate safina

A safe Rust async runtime.

This crate simply re-exports the various safina-* crates.

Features

• forbid(unsafe_code)
• Depends only on std
• Good test coverage (>95%)

Limitations

• Building on stable requires once_cell crate which contains some unsafe code. This is necessary until std::lazy::OnceCell is stable.
• No fs module yet. async-fs is a fast async networking library that works well with Safina. It contains some unsafe code.
• net module has poor performance. async-net is a fast async networking library that works well with Safina. It contains some unsafe code.
• Not optimized

Examples

let executor = safina::executor::Executor::default();
let (sender, receiver) = std::sync::mpsc::channel();
executor.spawn(async move {
    sender.send(()).unwrap();
});
receiver.recv().unwrap();

let result = safina::executor::block_on(async {
    prepare_request().await?;
    execute_request().await
})?;

Related

• safina_async_test crate has an #[async_test] macro for running async fn test functions.

Alternatives

• smol
  • Popular
  • Contains some unsafe code
• async-std
  • Very popular
  • Contains generous amounts of unsafe code
• futures
  • Very popular
  • Contains generous amounts of unsafe code
• tokio
  • Very popular
  • Fast
  • Internally extremely complicated
  • Full of unsafe code
• bastion
  • Generous amounts of unsafe code
• nostd_async

Changelog

Changelog

• v0.3.3 - Update docs.
• v0.3.2 - Add threadpool module.
• v0.3.1
  • Add sync_channel and SyncSender.
  • Add Receiver::async_recv to let users await without writing ugly (&mut receiver).await.
  • Remove Receiver::blocking and add try_recv, recv, etc.
• v0.3.0
  • Move structs into sub-modules.
  • Replace Promise with oneshot, OneSender, and Receiver that supports async and blocking reads.
  • schedule_blocking to return new sync::Receiver.
• v0.2.1 - Update docs.
• v0.2.0
  • Executor::new and Executor::with_name to return Result.
  • ThreadPool::new to return Result.
  • ThreadPool::try_schedule to return an error when it fails to restart panicked threads.
  • ThreadPool::schedule to handle failure starting replacement threads.
• v0.1.10 - block_on functions to take futures that are not Send.
• v0.1.9 - Use once_cell by default.
• v0.1.8 - Support stable with rust 1.51 and once_cell.
• v0.1.7 - Add safina-net
• v0.1.6 - Use safina-executor v0.1.3 API
• v0.1.5 - Add safina_sync::Mutex
• v0.1.4 - Upgrade to new safina-executor version which removes need for Box::pin.
• v0.1.3 - Update docs
• v0.1.2 - Renamed safina crate to safina-executor. Added new safina crate with re-exports, examples, and integration tests.
• v0.1.1 - Add badges to readme
• v0.1.0 - First published version

TO DO

• Add init function that makes an executor and starts the timer thread.
• Add an #[async_main] macro

Modules

executor

See safina_executor.

net

See safina_net.

select

See safina_select.

sync

See safina_sync.

threadpool

See safina_threadpool.

timer

See safina_timer.