}
		// Wait for the 2 writers and all readers to finish.
		for i := 0; i < 2+numReaders; i++ {
			<-cdone
		}
	})
}

// Borrowed from rwmutex_test.go
func TestRWMutex(t *testing.T) {
	defer runtime.GOMAXPROCS(runtime.GOMAXPROCS(-1))
	n := 100
	if testing.Short() {
		n = 5
	}
	hammerRWMutex(t, 1, 1, n)
	hammerRWMutex(t, 1, 3, n)
	hammerRWMutex(t, 1, 10, n)

		go reader(rwm, numIterations, &activity, cdone)
	}
	// Wait for the 2 writers and all readers to finish.
	for i := 0; i < 2+numReaders; i++ {
		<-cdone
	}
}

// Borrowed from rwmutex_test.go
func TestRWMutex(t *testing.T) {
	defer runtime.GOMAXPROCS(runtime.GOMAXPROCS(-1))
	n := 1000
	if testing.Short() {
		n = 5
	}
	HammerRWMutex(1, 1, n)
	HammerRWMutex(1, 3, n)
	HammerRWMutex(1, 10, n)