go/src/sync/atomic/example_test.go

func loadConfig() map[string]string { … }

func requests() chan int { … }

// The following example shows how to use Value for periodic program config updates
// and propagation of the changes to worker goroutines.
func ExampleValue_config() { … }

// The following example shows how to maintain a scalable frequently read,
// but infrequently updated data structure using copy-on-write idiom.
func ExampleValue_readMostly() { … }