Guide safe Rust concurrency design with Arc<Mutex>, channels, and tokio tasks.
npx skills add https://github.com/yumazak/kodo --skill m07-concurrency-yumazak
Please help me install this Agent Skill. Skill: m07-concurrency Source: https://github.com/yumazak/kodo/tree/main/.agents/skills/m07-concurrency Command: npx skills add https://github.com/yumazak/kodo --skill m07-concurrency-yumazak
Concurrency and async reasoning can be error-prone; this skill provides structured guidance to design safe, scalable Rust code that avoids data races and deadlocks.
Describe your concurrency challenge and specify the workload to surface the appropriate safe pattern.
High-intent search queries and answers about installing and using this skill.
To prevent deadlocks and data races in Rust, establish proper locking discipline using patterns like Arc<Mutex<T>> and channels. Ensure Send/Sync correctness and apply structured concurrency to orchestrate tasks and avoid racing conditions.
Use Rust threads for CPU-bound multi-threading workloads and tokio async tasks for I/O-bound workloads. Choosing the correct concurrency model ensures safe, scalable task orchestration and prevents runtime bottlenecks.
The best way to share state across tokio tasks is using Arc<Mutex<T>> or Arc<RwLock<T>> for controlled access. This pattern enforces thread-safety, Send/Sync correctness, and prevents simultaneous mutable access violations.
Fix Send and Sync violations in Rust by ensuring shared data conforms to Send/Sync bounds and applying proper locking discipline. Restructuring task spawning and using cancellation tokens correctly resolves these thread-safety errors.
Structured concurrency works well for Rust CLI tools and services by providing clear task orchestration and error handling. It scopes task lifetimes precisely, ensuring reliable execution and preventing orphaned background tasks.
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