How does this skill handle resource management?

It follows Eio's structured concurrency and capability-based design, using 'switches' to manage the lifecycle of fibers and resources like file descriptors, ensuring they are closed automatically when no longer needed.

What makes Eio different from Lwt or Async?

Eio utilizes OCaml 5 effects to support direct-style code. Unlike Lwt or Async, it doesn't require monads for concurrency, resulting in code that looks sequential, has better performance, and provides superior backtraces.

Can I use this for network programming and HTTPS?

Yes, the skill includes specific implementation patterns for TCP servers, clients, and integration with cohttp-eio and tls-eio for secure web communication.

Does it support testing asynchronous code?

Absolutely. It includes best practices for using Eio_mock to create deterministic tests, simulate partial reads, and detect deadlocks during the development process.

OCaml Eio Concurrency

Name: OCaml Eio Concurrency
Author: avsm

byavsm

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API 开发

Implements high-performance, direct-style concurrent IO patterns for OCaml 5 applications using the Eio library.

This skill provides Claude with deep expertise in OCaml 5's Eio effects-based IO library, enabling the development of concurrent applications without monadic overhead. It covers structured concurrency via switches, capability-based resource management, fiber orchestration, and integration with ecosystem libraries like cohttp-eio and bytesrw. It is particularly useful when building scalable network services, parallel file processors, or systems that require platform-specific optimizations like Linux io_uring while maintaining readable, sequential-looking code.