NewPooledWorkerPool creates a new worker pool.

NewPooledWorkerPoolOptions returns a new PooledWorkerPoolOptions with default options.

NewWorkerPool creates a new worker pool.

PooledWorkerPool provides a pool for goroutines, but unlike WorkerPool, the actual goroutines themselves are re-used.

PooledWorkerPoolOptions is the options for a PooledWorkerPool.

WorkerPool provides a pool for goroutines.

NowFn is a function that returns the current time.

Work is a unit of item to be worked on.