groupworkpool

type Group interface {
	// Enqueue queues a work function to be executed by the group. It does not
	// block and the WorkFunc should be assumed to execute in another goroutine.
	Enqueue(WorkFunc)
}

type GroupWorkPool interface {
	// AddGroup adds a new group to the pool. Cancellation of the provided
	// context will cause the group to be removed from the pool.
	AddGroup(context.Context) Group
	// Start starts the pool. Cancellation of the provided context will cause
	// the pool to stop.
	Start(context.Context)
	// Stop stops the pool. Will have the same effect as cancelling the context
	// passed to Start.
	Stop()
}

type WorkFunc func()