minimal-async-runtime-rust

A minimal, single-threaded async runtime built in Rust — with no external async libraries or runtimes like tokio, async-std, or futures.

Features

• ✅ spawn() to schedule and run async tasks.
• ⏱️ sleep() to await a duration before resuming.
• 🔁 yield_now() for cooperative multitasking.
• 🧵 Runs a top-level async function via block_on().
• 📦 Custom macros: mini_rt! and join_all! for ergonomic usage.

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How It Works

• Uses a simple VecDeque for task queue and a BinaryHeap for timers.
• Custom task polling via Waker and Context.
• Uses block_on() to run tasks until all complete.
• Fully single-threaded and event-loop driven.

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License

This repository is licensed under the MIT License. See the LICENSE file for more information.