if (c.evq.Size().value == 0)
if (c.evq.Size().value == 0) {
vValue Event() {    if (c.evq.Size().value == 0)	// if we're going to block	k$output.file.flush();		// flush stdout first    vValue e = wEvent.dequeue(c.evq);    setCurrent(this);    return e;}