A safe Rust async runtime.

Features

• forbid(unsafe_code)
• Depends only on std at runtime
• Good test coverage (>85%)

Limitations

• 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

use std::sync::Arc;
use safina::executor::Executor;

let executor: Arc<Executor> = Arc::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
})?;

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

Cargo Geiger Safety Report

Metric output format: x/y
    x = unsafe code used by the build
    y = total unsafe code found in the crate

Symbols: 
    🔒  = No `unsafe` usage found, declares #![forbid(unsafe_code)]
    ❓  = No `unsafe` usage found, missing #![forbid(unsafe_code)]
    ☢️  = `unsafe` usage found

Functions  Expressions  Impls  Traits  Methods  Dependency

0/0        0/0          0/0    0/0     0/0      🔒  safina 0.6.0
0/0        0/0          0/0    0/0     0/0      🔒  └── safina-macros 0.1.3
0/0        0/0          0/0    0/0     0/0      🔒      ├── safe-proc-macro2 1.0.67
0/0        4/4          0/0    0/0     0/0      ☢️      │   └── unicode-ident 1.0.13
0/0        0/0          0/0    0/0     0/0      🔒      └── safe-quote 1.0.15
0/0        0/0          0/0    0/0     0/0      🔒          └── safe-proc-macro2 1.0.67

0/0        4/4          0/0    0/0     0/0    

Changelog

• v0.6.0 2024-11-02 - Simplify ExecutorBuilder.
• v0.5.0 2024-10-27 - Add ExecutorBuilder and simplify Executor constructors.
• v0.4.1 2024-10-27 - Improve async_test:
  • Make async_test a default feature so it shows up in docs.rs.
  • Timeout after 5s.
  • Override timeout with #[async_test(timeout_sec = 1)].
  • Support #[should_panic] and other test modifier macros.
  • Stop adding _ to the end of the test name.
• v0.4.0 2024-10-26 - Merge crates into this crate.
  • safina-async-test
  • safina-async-test-core (to safina-macros crate)
  • safina-executor
  • safina-net
  • safina-select
  • safina-sync
  • safina-threadpool
  • safina-timer
• 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

License: Apache-2.0