Go Concurrency Review

Concurrency in Go is powerful and deceptively easy to get wrong. These patterns prevent goroutine leaks, data races, and deadlocks.

Detailed reference material, loaded on demand:

• references/channels.md — sizing, signalling, producer shutdown.
• references/mutex-and-atomics.md — mutex placement, lock scope, atomics, sync.Once, RWMutex pitfalls, sync.Map, sync.Pool, singleflight.
• references/goroutine-patterns.md — panic recovery at goroutine boundaries, pipelines, bounded fan-out, timers.

Read a reference file only when the section below is not enough.

Operating Modes

Pick the mode that matches the request before starting: