if err != nil {
		log.Fatalf("dial failed: %v", err)
	}
	var tmp [1]byte
	c.Read(tmp[:])
	c.Close()

	trace.Stop()
}

// blockingSyscall blocks the current goroutine for duration d in a syscall and
// sends a message to done when it is done or if the syscall failed.
func blockingSyscall(d time.Duration, done chan<- error) {
	r, w, err := os.Pipe()
	if err != nil {
		done <- err
		return
	}
	start := time.Now()

			// TODO(mknyszek): Check for flow events.
		})
	}
}

func checkSyscalls(t *testing.T, data format.Data) {
	data = filterViewerTrace(data,
		filterEventName("syscall"),
		filterStackRootFunc("main.blockingSyscall"))
	if len(data.Events) <= 1 {
		t.Errorf("got %d events, want > 1", len(data.Events))
	}
	data = filterViewerTrace(data, filterBlocked("yes"))
	if len(data.Events) != 1 {

String id=56
	data="net.Dial"
String id=57
	data="runtime.chansend1"
String id=58
	data="/usr/local/google/home/mknyszek/work/go-1/src/runtime/chan.go"
String id=59
	data="main.blockingSyscall"
String id=60
	data="time.Sleep"
String id=61
	data="/usr/local/google/home/mknyszek/work/go-1/src/runtime/time.go"
String id=62
	data="main.allocHog"
String id=63
	data="main.cpu10"