Rust’s Tokio async runtime provides two common ways to execute multiple async tasks concurrently: tokio::join! and tokio::spawn(). Choosing the right one is crucial for efficiency and proper task management. In this article, we’ll break down their differences, advantages, and when to use each with examples. Understanding tokio::join! tokio::join! is used when you need structured concurrency—where […]

Challenge: Race Condition & Mutex Fix 🏎️🔒 You’re building an async counter where multiple tasks try to update a shared number at the same time. But there’s a problem: Rust doesn’t allow shared mutable access without safety measures. Your Mission: Hints: When you use await, it pauses the task, not the thread. Here’s the distinction: […]

Let me break down the process of creating this chat application into three phases, explaining the shared state aspect and unique challenges compared to typical Arc/Mutex tutorials. Phase 1: Setting Up the Basic Structure In Plain English: First, you’ll need to establish the foundational structure of your application. This means creating the basic server that […]