Crate safina_executor

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Expand description

§ARCHIVED ARCHIVED ARCHIVED

This crate is archived and will not be updated.

The code is now at safina::executor in the safina crate.


§safina-executor

An async executor.

It is part of safina, a safe async runtime.

§Features

  • Spawn async tasks to execute on a threadpool.
  • Schedule closures or FnOnce to run on a separate thread pool for blocking jobs.
  • Supports multiple executors.
  • forbid(unsafe_code)
  • Depends only on std
  • Good test coverage (100%)

§Limitations

  • Allocates memory
  • Not optimized

§Documentation

https://docs.rs/safina-executor

§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
})?;
let result = safina_executor::schedule_blocking(|| {
    read_file1()?;
    read_file2()
}).async_recv().await.unwrap()?;

§Alternatives

§Changelog

  • v0.3.3 - Eliminate spurious “resumed after completion” worker thread panics.
  • v0.3.2 - Re-export safina_sync::Receiver and safina_threadpool::NewThreadPoolError.
  • v0.3.1 - Use safina-async v0.2.1.
  • v0.3.0 - schedule_blocking to return new safina_sync::Receiver.
  • v0.2.1 - Update docs.
  • v0.2.0
    • Executor::new and Executor::with_name to return Result.
    • Upgrade to safina-threadpool v0.2.0.
  • v0.1.7 - block_on functions to take futures that are not Send.
  • v0.1.6 - Fix deadlock in block_on and block_on_unpin when task is awakened a second time.
  • v0.1.5 - Support stable Rust! Needs 1.51+.
  • v0.1.4 - Add schedule_blocking and Executor::schedule_blocking
  • v0.1.3
    • Removed global executor. Users must explicitly create executor.
    • Removed dependency on unstable OnceCell.
    • Uses safina_threadpool internally.
  • v0.1.2 - Let callers pass futures to spawn and block_on without using Box::pin. Add spawn_unpin and block_on_unpin for folks who need to avoid allocating. so callers don’t have to.
  • v0.1.1 - Fix badge and update readme
  • v0.1.0 - Renamed from safina

§TO DO

§Release Process

  1. Edit Cargo.toml and bump version number.
  2. Run ./release.sh

Structs§

Executor
A collection of threads for executing tasks and blocking jobs.
Receiver
The receiving half of a channel. This half can only be owned by one thread.
ThreadExecutorGuard
Guard returned by set_thread_executor.

Enums§

NewThreadPoolError

Functions§

block_on
Executes the future on the current thread and returns its result.
block_on_unpin
Executes the future on the current thread and returns its result.
get_thread_executor
Gets the Executor from thread-local storage.
schedule_blocking
Schedules func to run on any available thread in the blocking thread pool.
set_thread_executor
Sets executor as the Executor for the current thread, saving it to thread-local storage.
spawn
Creates a new task to execute fut and schedules it for immediate execution.
spawn_unpin
Creates a new task to execute fut and schedules it for immediate execution.