mutexmap

type M ¶

type M struct {
	// contains filtered or unexported fields
}

Think of this as an infinite number of named bathroom stalls. Each named stall can only be occupied by one person. When you TryLock(): a) it won't open if it's already occupied. (because it's locked inside) decide to do something else b) it opens and you get in and the stall gets reserved/locked for you. When you get out

you call the unlock callback you obtained from TryLock() to return the stall for use.

func New() *M

func (n *M) Lock(key string) func()

func (n *M) TryLock(key string) (func(), bool)