facebookexperimental/libunifex

Health v2 · maintenance only

Flags: no_license

Adoption not part of the score

1713 stars · 210 forks observed · 2026-08-28

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

libunifex is a C++ library implementing the sender/receiver asynchronous programming model proposed for C++ standardization. It provides schedulers, timers, async I/O via io_uring, cancellation, async streams, and C++20 coroutine integration.

Use cases

• write async C++ code with the sender/receiver model
• compose asynchronous operations with algorithms
• perform async file I/O on Linux with io_uring
• integrate coroutines with an executor framework
• implement structured concurrency with cancellation support
• prototype the future C++ std::execution API

When to choose

• you need a modern, composable async/concurrency model in C++17/20
• you want to experiment with or adopt the proposed std::execution sender/receiver design
• you need structured cancellation and coroutine integration in C++

When to avoid

• you need API or ABI stability in production
• you want a mature, widely-adopted async framework
• you need async I/O on platforms other than Linux io_uring or Windows thread pools

Facets

library · maturity experimental

concurrency scheduling developer-tools performance windows cpp cross-platform sender-receiver coroutines io-uring cancellation executors c-plus-plus algorithms linux macos

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