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port-c-module

Port a C module to Rust with crate creation and FFI wrapping.

6.2k|590|Updated May 5, 2016
Search Tags:#migration#Rust#port#FFI#Rust crate#C module#build integration
One-click install
npx skills add https://github.com/RediSearch/RediSearch --skill port-c-module
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Please help me install this Agent Skill.
Skill: port-c-module
Source: https://github.com/RediSearch/RediSearch/tree/main/.skills/port-c-module
Command: npx skills add https://github.com/RediSearch/RediSearch --skill port-c-module

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This Skill helps engineers port a C module to Rust by providing a structured, step-by-step guide that covers analysis, planning, Rust crate creation, FFI integration, and testing to reduce porting risk and improve safety.

Core Features & Use Cases

  • Porting plan framework: Create a porting plan document detailing decisions, interfaces, and migration milestones.
  • Rust crate scaffolding: Set up a pure Rust crate to host the ported logic and safe abstractions over the C API.
  • FFI boundary and interop: Implement a robust C-FFI wrapper to expose Rust functionality to the C codebase and replace or wrap legacy calls.
  • Testing and integration: Provide guidance to run unit and integration tests to validate behavior across languages.

Quick Start

Port the C module to Rust by creating a new Rust crate, adding a porting plan, implementing the Rust logic, creating an FFI boundary, and wiring it into the C build system, then run tests.

Frequently Asked Questions about port-c-module

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I port a C module to Rust?▼

Porting a C module to Rust involves creating a Rust crate, building FFI bindings to the C API, implementing Rust logic, and integrating it back into your C build system. This replaces legacy C code with safer Rust while maintaining compatibility through an FFI boundary.

When should I migrate C code to Rust instead of keeping it as-is?▼

Migrate C code to Rust when you need improved memory safety, reduced maintenance overhead, and better protection against buffer overflows and undefined behavior. Rust's compile-time guarantees make sense for modules where safety and maintainability are priorities.

What's involved in setting up FFI between Rust and C?▼

FFI setup requires defining extern declarations for C functions in Rust, using `#[repr(C)]` for data structures, and wrapping unsafe C calls with safe Rust abstractions. This boundary layer lets Rust code call C functions and C code call back into Rust.

Do I need Rust experience to port a C module?▼

While some Rust knowledge helps, a structured porting plan and FFI framework reduce the learning curve. Understanding C FFI concepts, memory ownership, and Rust's safety model accelerates the migration process.

How do I validate that my ported Rust module works correctly?▼

Run unit and integration tests against both the original C module and ported Rust implementation to verify behavior parity. Test FFI boundaries, edge cases, and integration points within your build system to catch correctness issues early.

Can I port a C module gradually or must I rewrite it all at once?▼

Gradual porting is possible by creating an FFI wrapper around the C module, replacing individual functions incrementally with Rust implementations, and maintaining the C-Rust boundary throughout the migration.

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