package concurrent

import "sync"

// Value is a struct providing concurrent access to another type.
// Note: T should be a concrete type, not a pointer.
type Value[T any] struct {
	val T
	mu  sync.RWMutex
}

func NewValue[T any](value T) *Value[T] {
	return &Value[T]{
		val: value,
	}
}

func (v *Value[T]) Get() T {
	v.mu.RLock()
	val := v.val
	v.mu.RUnlock()

	return val
}

func (v *Value[T]) Set(new T) {
	v.mu.Lock()
	v.val = new
	v.mu.Unlock()
}