Xudong-Huang/may

Health v2 · maintenance only

Flags: no_releases

Adoption not part of the score

2424 stars · 101 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

May is a high-performance Rust library for stackful coroutines, offering a Goroutine-like programming model for building massively concurrent programs. It provides coroutine-compatible networking I/O, timers, synchronization primitives, and scheduling across multiple threads.

Use cases

• write goroutine-style concurrent code in Rust
• build a high-performance echo server
• handle massive concurrent network I/O without async/await
• implement CPU-heavy concurrent workloads like quicksort across coroutines
• manage timers and synchronization primitives across lightweight tasks
• cancel or gracefully handle panics in concurrent tasks

When to choose

• you want stackful coroutines with standard-library-like blocking APIs instead of async/await
• you need to run millions of lightweight concurrent tasks with efficient multi-core scheduling
• you are porting Go-style concurrency patterns to Rust
• you need coroutine-local storage and scoped coroutine spawning

When to avoid

• your project is already committed to the async/await ecosystem (tokio, async-std)
• you need platform support beyond x86_64/AArch64 Linux, Windows, and macOS
• you require no_std or embedded environments
• you prefer stackless generators or futures-based abstractions

Facets

library · maturity active

concurrency networking http-server websocket developer-tools networking performance backend windows rust coroutines green-threads fibers stackful-coroutine goroutines async generator scheduler linux macos

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