Posts tagged "concurrency"

Two requests read the same row, both change it, and the second save quietly erases the first. A version number turns that silent bug into a conflict you can catch. Here is how optimistic locking works.

Background subagents run concurrently, but they can't stop to ask you questions or negotiate permissions mid-run. Here is when concurrency saves time and when it just fails more quietly.

The sliding window pattern shows up in rate limiters, monitoring dashboards, and analytics pipelines. This guide explains the concept from first principles, then builds a real-time stock price monitor in Go step by step — explaining each piece before writing a line of code.

A deep dive into what actually happens when you write #[tokio::main]. We'll tear apart the macro, expose the state machines, and reveal the work-stealing scheduler hiding beneath five lines of code.

Learn how to build a dependency-free async oneshot channel in Rust, allowing you to send a single value between tasks with thread-safe guarantees.