Chapter 3

Synchronization Primitives

Use sync.Mutex, sync.WaitGroup, and other synchronization tools

✓ Protect shared state with mutexes ✓ Coordinate goroutines with WaitGroup ✓ Use sync.Once for initialization
1
Mutex Basics
Protect shared state with sync.Mutex and sync.RWMutex
Effective Go +20 XP intermediate
2
WaitGroup
Coordinate goroutine completion with sync.WaitGroup
Effective Go +15 XP beginner
3
Sync.Once
Run initialization code exactly once with sync.Once
Effective Go +15 XP beginner
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