}

func TestTTLEvictionCallback(t *testing.T) {
	c := &callbackRecorder{callbacks: 0}
	ttl := NewTTLWithCallback(50*time.Millisecond, time.Millisecond, c.callback)
	testCacheEvicter(ttl)
	if atomic.LoadInt64(&c.callbacks) != 1 {
		t.Errorf("evictExpired() => failed to invoke EvictionCallback: got %d callbacks, wanted 1", c.callbacks)
	}
}

func TestTTLFinalizer(t *testing.T) {

	up64 := (*uint64)(u) // misaligned
	p64 := (*int64)(u)   // misaligned

	shouldPanic(t, "Load64", func() { atomic.Load64(up64) })
	shouldPanic(t, "Loadint64", func() { atomic.Loadint64(p64) })
	shouldPanic(t, "Store64", func() { atomic.Store64(up64, 0) })
	shouldPanic(t, "Xadd64", func() { atomic.Xadd64(up64, 1) })
	shouldPanic(t, "Xchg64", func() { atomic.Xchg64(up64, 1) })

// for some quantity.
type HighWaterMark int64

// Update returns true if and only if 'current' is the highest value ever seen.
func (hwm *HighWaterMark) Update(current int64) bool {
	for {
		old := atomic.LoadInt64((*int64)(hwm))
		if current <= old {
			return false
		}
		if atomic.CompareAndSwapInt64((*int64)(hwm), old, current) {
			return true
		}
	}
}

TEXT ·Casuintptr(SB),NOSPLIT,$0-13
	B	·Cas(SB)

TEXT ·Casp1(SB),NOSPLIT,$0-13
	B	·Cas(SB)

TEXT ·CasRel(SB),NOSPLIT,$0-13
	B	·Cas(SB)

TEXT ·Loadint32(SB),NOSPLIT,$0-8
	B	·Load(SB)

TEXT ·Loadint64(SB),NOSPLIT,$-4-12
	B	·Load64(SB)

TEXT ·Loaduintptr(SB),NOSPLIT,$0-8
	B	·Load(SB)

TEXT ·Loaduint(SB),NOSPLIT,$0-8
	B	·Load(SB)

TEXT ·Storeint32(SB),NOSPLIT,$0-8
	B	·Store(SB)

		return true
	})
}

func (c *ttlCache) Stats() Stats {
	return Stats{
		Evictions: atomic.LoadUint64(&c.stats.Evictions),
		Hits:      atomic.LoadUint64(&c.stats.Hits),
		Misses:    atomic.LoadUint64(&c.stats.Misses),
		Writes:    atomic.LoadUint64(&c.stats.Writes),
		Removals:  atomic.LoadUint64(&c.stats.Removals),
	}

#include "textflag.h"

TEXT ·Loaduintptr(SB), NOSPLIT, $0-16
	JMP	·Load64(SB)

TEXT ·Loaduint(SB), NOSPLIT, $0-16
	JMP	·Load64(SB)

TEXT ·Loadint32(SB), NOSPLIT, $0-12
	JMP	·Load(SB)

TEXT ·Loadint64(SB), NOSPLIT, $0-16
	JMP	·Load64(SB)

// bool Cas(int32 *val, int32 old, int32 new)
// Atomically:
//	if(*val == old){
//		*val = new;
//		return 1;
//	} else
//		return 0;
TEXT ·Cas(SB),NOSPLIT,$0-17

	JMP	·Load64(SB)

TEXT ·Loaduint(SB), NOSPLIT|NOFRAME, $0-16
	JMP	·Load64(SB)

TEXT ·Storeuintptr(SB), NOSPLIT, $0-16
	JMP	·Store64(SB)

TEXT ·Xadduintptr(SB), NOSPLIT, $0-24
	JMP	·Xadd64(SB)

TEXT ·Loadint64(SB), NOSPLIT, $0-16
	JMP	·Load64(SB)

TEXT ·Xaddint64(SB), NOSPLIT, $0-24
	JMP	·Xadd64(SB)

// bool casp(void **val, void *old, void *new)
// Atomically:
//	if(*val == old){
//		*val = new;
//		return 1;

	JMP	·Store64(SB)

TEXT ·Storeuintptr(SB),NOSPLIT,$0-8
	JMP	·Store(SB)

TEXT ·Xadduintptr(SB),NOSPLIT,$0-12
	JMP	·Xadd(SB)

TEXT ·Loadint32(SB),NOSPLIT,$0-8
	JMP	·Load(SB)

TEXT ·Loadint64(SB),NOSPLIT,$0-12
	JMP	·Load64(SB)

TEXT ·Xaddint32(SB),NOSPLIT,$0-12
	JMP	·Xadd(SB)

TEXT ·Xaddint64(SB),NOSPLIT,$0-20
	JMP	·Xadd64(SB)

TEXT ·Casp1(SB),NOSPLIT,$0-13
	JMP	·Cas(SB)

	JMP	·Store64(SB)

TEXT ·Storeuintptr(SB), NOSPLIT, $0-8
	JMP	·Store(SB)

TEXT ·Xadduintptr(SB), NOSPLIT, $0-12
	JMP	·Xadd(SB)

TEXT ·Loadint32(SB), NOSPLIT, $0-8
	JMP	·Load(SB)

TEXT ·Loadint64(SB), NOSPLIT, $0-12
	JMP	·Load64(SB)

TEXT ·Xaddint32(SB), NOSPLIT, $0-12
	JMP	·Xadd(SB)

TEXT ·Xaddint64(SB), NOSPLIT, $0-20
	JMP	·Xadd64(SB)

// bool ·Cas64(uint64 *val, uint64 old, uint64 new)

		case <-timeout:
			srvErr <- fmt.Errorf("server: timeout waiting for connection to close")
			return
		case <-srvSPDYConn.CloseChan():
		}

		// Count pings sent by the server.
		gotPings := atomic.LoadInt64(&pingsSent)
		if gotPings < 1 {
			t.Errorf("server: failed to send any pings (check logs)")
		}
	}()

	// Set up client connection.
	clConn, err := net.Dial("tcp4", listener.Addr().String())