Package atomic provides low-level atomic memory primitives useful for implementing synchronization algorithms.

NewCond returns a new Cond with Locker l.

Cond implements a condition variable, a rendezvous point for goroutines waiting for or announcing the occurrence of an event.

A Mutex is a mutual exclusion lock.

Once is an object that will perform exactly one action.

An RWMutex is a reader/writer mutual exclusion lock.

A WaitGroup waits for a collection of goroutines to finish.

A Locker represents an object that can be locked and unlocked.