return d.popHead()
}

func (d *poolDequeue) PopTail() (any, bool) {
	return d.popTail()
}

func NewPoolChain() PoolDequeue {
	return new(poolChain)
}

func (c *poolChain) PushHead(val any) bool {
	c.pushHead(val)
	return true
}

func (c *poolChain) PopHead() (any, bool) {
	return c.popHead()
}

func (c *poolChain) PopTail() (any, bool) {
	return c.popTail()

		val = nil
	}
	// Zero the slot. Unlike popTail, this isn't racing with
	// pushHead, so we don't need to be careful here.
	*slot = eface{}
	return val, true
}

// popTail removes and returns the element at the tail of the queue.
// It returns false if the queue is empty. It may be called by any
// number of consumers.
func (d *poolDequeue) popTail() (any, bool) {
	var slot *eface
	for {

	New func() any
}

// Local per-P Pool appendix.
type poolLocalInternal struct {
	private any       // Can be used only by the respective P.
	shared  poolChain // Local P can pushHead/popHead; any P can popTail.
}

type poolLocal struct {
	poolLocalInternal

	// Prevents false sharing on widespread platforms with
	// 128 mod (cache line size) = 0 .
	pad [128 - unsafe.Sizeof(poolLocalInternal{})%128]byte
}

			atomic.StoreInt32(&stop, 1)
		}
	}

	// Start P-1 consumers.
	for i := 1; i < P; i++ {
		wg.Add(1)
		go func() {
			fail := 0
			for atomic.LoadInt32(&stop) == 0 {
				val, ok := d.PopTail()
				if ok {
					fail = 0
					record(val.(int))
				} else {
					// Speed up the test by
					// allowing the pusher to run.
					if fail++; fail%100 == 0 {
						runtime.Gosched()
					}