CCo
Go-style coroutines in C
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HN · launched Aug 3, 2026 · 5 upvotes (top 87%) · 0 views
Niche: specialized algorithms and computing libraries · 230 launches, 4 in the last 7 days ▼ -73% · Explore this niche →
Category and tags
- Horizontal
- Dev tools
- Developer
- Not AI
- Hobby / open-source project
Visit website ↗ Source listing ↗
More like this: all 230 launches in specialized algorithms and computing libraries →
Could you build this?
No Writing a Go-style coroutine library in C requires low-level context switching, architecture-specific assembly (manipulating stack pointers and CPU registers), and custom runtime scheduling.
What it would actually take: The implementation relies on architecture-specific assembly routines (like `setjmp`/`longjmp`, `makecontext`/`swapcontext`, or custom ASM for x86_64/ARM64) to allocate custom stack frames and swap execution contexts cooperatively. It also necessitates building a work-stealing or FIFO scheduler and channel-based synchronization primitives in pure C without data races. This requires specialized systems programming skills in CPU architectures, calling conventions, and concurrency primitives that AI prompts cannot reliably verify.
Discussion
2 comments analyzed.
Competitors mentioned: Go
Concerns raised: Fixed 4KB stack size causes stack overflow risk, Stack exhaustion leads to silent data corruption, Unable to dynamically grow stack like Go coroutines
Feature requests: Dynamic stack allocation with OS virtual memory, Lazy page allocation for stack growth, Sentinel page for stack overflow detection
Competitors
Other products that read as similar to this one : 1268 launches clear the similarity bar, closest 8 shown.
Attention rank: #1051 of 1269 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 276 days after the earliest competitor.
- Runloom · hn · 2026-07-10 · 47 upvotes · similarity 0.74
- A fast, dependency-free traceroute implementation in pure C · hn · 2025-10-31 · 29 upvotes · similarity 0.63
- cpp-coroutine-server-framework · github · 2026-10-20 · 24 upvotes · similarity 0.63
- General_Purpose_Allocator · github · 2026-10-09 · 10 upvotes · similarity 0.61
- miso · github · 2026-11-04 · 52 upvotes · similarity 0.53
- go-conc-distilled · github · 2026-09-26 · 72 upvotes · similarity 0.53
- X · hn · 2026-06-15 · 5 upvotes · similarity 0.52
- TRiP · hn · 2026-04-30 · 38 upvotes · similarity 0.51
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