# sustrik/libmill

Go-style concurrency in C

Repository: https://github.com/sustrik/libmill
Canonical: https://ross.abutalabs.com/products/libmill
Language: C
License: MIT
License Family: permissive
Last push: 2021-02-09T05:27:00+00:00

## Health v2 (maintenance only)
Score: 32/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 4509, "days_push": 2031, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 3175, forks 219 (observed 2026-08-28T04:07:47.606813+00:00)

## What it is
Libmill is a C library that brings Go-style concurrency to C, providing goroutine-like coroutines and channels. It lets C developers write concurrent, blocking-style code without callback-based asynchrony.

## Use cases
- write concurrent code in C with goroutine-style coroutines
- use channels for communication between C coroutines
- avoid callback-based async programming in C
- build network servers with blocking-style concurrency in C
- port Go-style concurrency patterns to C codebases

## When to choose
- you need Go-like concurrency primitives in a C project
- you prefer blocking-style code over event-loop callbacks in C
- you want lightweight coroutines with channel-based communication

## When to avoid
- you are writing modern C++ and can use native coroutines or std::thread
- you need a maintained, actively developed library
- you want full async I/O ecosystems like libuv

## Facets
- artifact type: library
- maturity: maintenance
- function: concurrency, networking, http-client
- domain: developer-tools, programming-languages, networking, microservices
- platform: windows, cpp, c
- tags: goroutines, channels, c-library, structured-concurrency, coroutines, linux, macos

## Member repositories
- sustrik/libmill (main) score 32

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:07:47.606813+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T18:45:26.051241+00:00, confidence not recorded.
  - readme: https://github.com/sustrik/libmill (fetched 2026-08-28T04:07:47.606813+00:00, sha 6b3dd5c1adf0)
- Data as of 2026-08-30T08:39:29.467469+00:00.