concurrency

⚡ RUST CONCURRENCY BEST PRACTICES

TL;DR: Modern async/await patterns and thread-safe data structures for high-performance Rust applications.

🔍 CONCURRENCY ARCHITECTURE STRATEGY

graph TD
    Start["Concurrency Requirements"] --> ConcurrencyType{"Concurrency<br>Pattern?"}

    ConcurrencyType -->|Async I/O| AsyncPattern["Async/Await Pattern"]
    ConcurrencyType -->|CPU Intensive| ParallelPattern["Parallel Processing"]
    ConcurrencyType -->|Shared State| SharedStatePattern["Shared State Management"]
    ConcurrencyType -->|Message Passing| MessagePattern["Message Passing"]

    AsyncPattern --> TokioRuntime["Tokio Runtime"]
    ParallelPattern --> Rayon["Rayon Parallel Iterators"]
    SharedStatePattern --> DashMap["DashMap Collections"]
    MessagePattern --> Channels["Channel Communication"]

    TokioRuntime --> AsyncPrimitives["Async Sync Primitives"]
    Rayon --> ThreadPool["Thread Pool Management"]
    DashMap --> LockFree["Lock-Free Data Structures"]
    Channels --> ChannelTypes["Channel Type Selection"]

    AsyncPrimitives --> ErrorHandling["Error Handling"]
    ThreadPool --> ErrorHandling
    LockFree --> ErrorHandling
    ChannelTypes --> ErrorHandling

    ErrorHandling --> Testing["Concurrency Testing"]
    Testing --> Performance["Performance Monitoring"]
    Performance --> Production["Production Concurrency"]

    style Start fill:#4da6ff,stroke:#0066cc,color:white
    style AsyncPattern fill:#4dbb5f,stroke:#36873f,color:white
    style SharedStatePattern fill:#ffa64d,stroke:#cc7a30,color:white
    style MessagePattern fill:#d94dbb,stroke:#a3378a,color:white

🎯 ASYNC RUNTIME SELECTION

Tokio as the Standard

• Always use Tokio for async runtime
• Use tokio::sync primitives instead of std::sync for async code
• Leverage async/await patterns throughout the application
• Avoid blocking operations in async contexts

# Cargo.toml - Tokio configuration
[dependencies]
tokio = { version = "1.45", features = [
    "macros",
    "rt-multi-thread",
    "signal",
    "sync"
] }
dashmap = { version = "6", features = ["serde"] }
async-trait = "0.1"
futures = "0.3"