Mutex Patterns in Go
Go Concurrency Patterns Series: ← Worker Pool | Series Overview | WaitGroup Pattern → What are Mutex Patterns? Mutex (mutual exclusion) patterns are essential for protecting shared resources in concurrent programs. Go provides sync.Mutex and sync.RWMutex for controlling access to critical sections, ensuring data consistency and preventing race conditions. Key Types: Mutex: Exclusive access (one goroutine at a time) RWMutex: Reader-writer locks (multiple readers OR one writer) Lock-free: Atomic operations without explicit locks Real-World Use Cases Shared Counters: Statistics, metrics, rate limiting Cache Systems: Thread-safe caching with read/write operations Configuration Management: Safe updates to application config Connection Pools: Managing database/HTTP connection pools Resource Allocation: Tracking and managing limited resources State Machines: Protecting state transitions Basic Mutex Usage package main import ( "fmt" "sync" "time" ) // Counter demonstrates basic mutex usage type Counter struct { mu sync....