philiprehberger-task-queue 0.1.3

In-process thread-based task queue with priority and concurrency control
Documentation

rs-task-queue

CI Crates.io License

In-process thread-based task queue for Rust with priority scheduling and concurrency control. Zero external dependencies — uses only std threading primitives.

Installation

Add to your Cargo.toml:

[dependencies]
philiprehberger-task-queue = "0.1"

Usage

use philiprehberger_task_queue::{TaskQueue, Priority};

// Create a queue with 4 worker threads
let queue = TaskQueue::new(4);

// Submit a task (Normal priority by default)
let handle = queue.submit(|| {
    42
});

// Block until the task completes
let result = handle.join().unwrap();
assert_eq!(result, 42);

// Submit with explicit priority
let handle = queue.submit_with_priority(Priority::High, || {
    "urgent work done"
});
assert_eq!(handle.join().unwrap(), "urgent work done");

// Check completion without blocking
let handle = queue.submit(|| 100);
// ... do other work ...
if handle.is_done() {
    println!("Task finished!");
}

// Graceful shutdown: finishes running tasks, drops pending ones
queue.shutdown();

API

Item Description
TaskQueue::new(concurrency) Create a queue with N worker threads
queue.submit(task) Submit a task at Normal priority; returns TaskHandle<T>
queue.submit_with_priority(priority, task) Submit a task at the given priority; returns TaskHandle<T>
queue.shutdown() Signal workers to stop, wait for running tasks, drop pending
handle.join() Block until the task completes; returns Result<T, TaskError>
handle.is_done() Check if the task has completed without blocking
Priority::High Highest execution priority
Priority::Normal Default execution priority
Priority::Low Lowest execution priority
TaskError::Panicked Task panicked during execution
TaskError::Cancelled Task was dropped during shutdown before it ran

License

MIT