}

// traceStopReadCPU blocks until the trace CPU reading goroutine exits.
//
// traceAdvanceSema must be held, and tracing must be disabled.
func traceStopReadCPU() {
	if traceEnabled() {
		throw("traceStopReadCPU called with trace enabled")
	}

	// Once we close the profbuf, we'll be in one of two situations:
	// - The logger goroutine has already exited because it observed
	//   that the trace is disabled.

	}

	return
}

type Waitmsg struct {
	Pid  int
	Time [3]uint32
	Msg  string
}

func (w Waitmsg) Exited() bool   { return true }
func (w Waitmsg) Signaled() bool { return false }

func (w Waitmsg) ExitStatus() int {
	if len(w.Msg) == 0 {
		// a normal exit returns no message
		return 0
	}
	return 1
}

//sys	await(s []byte) (n int, err error)