Enforce safe asynchronous cleanup for Rust resources with AsyncDropGuard.
npx skills add https://github.com/cryfs/cryfs --skill async-drop
Please help me install this Agent Skill. Skill: async-drop Source: https://github.com/cryfs/cryfs/tree/main/.claude/skills/async-drop Command: npx skills add https://github.com/cryfs/cryfs --skill async-drop
AsyncDrop patterns enforce safe, asynchronous cleanup for resources in Rust, addressing the need to properly finalize resources that require async teardown, preventing leaks and ensuring deterministic shutdown.
Use the AsyncDrop pattern to ensure a resource is cleaned up asynchronously by wrapping it in AsyncDropGuard and invoking async_drop() when done.
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Async cleanup in Rust is implemented by wrapping values in AsyncDropGuard and invoking async_drop() to enforce safe finalization. This pattern prevents leaks by ensuring deterministic shutdown across all exit paths.
AsyncDropGuard handles ownership transfer by safely wrapping values to require explicit async cleanup. It supports concurrent and shared cleanup utilities, including safe transfer of guard ownership across async boundaries.
Automating async cleanup for multiple struct members is best handled using the with_async_drop_2 macro and delegating to member AsyncDrops. This supports composition and enables parallel drops for independent members.
An AsyncDrop trait implementation is needed when a Rust resource requires explicit asynchronous teardown logic. It provides per-resource cleanup to properly finalize resources, preventing leaks that standard synchronous Drop cannot address.
Sharing an async cleanup guard across concurrent Rust tasks is supported using AsyncDropArc. This provides concurrency-friendly cleanup, including parallel drops for independent members and safe transfer of guard ownership within shared utilities.
Async cleanup in Rust works with standard ownership rules by enforcing explicit asynchronous teardown via AsyncDropGuard. Composition patterns allow delegating to member AsyncDrops while maintaining safe concurrent cleanup across ownership scenarios.
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