sg.releasetime = cputicks()
	}
	goready(gp, skip+1)
}

// timerchandrain removes all elements in channel c's buffer.
// It reports whether any elements were removed.
// Because it is only intended for timers, it does not
// handle waiting senders at all (all timer channels
// use non-blocking sends to fill the buffer).
func timerchandrain(c *hchan) bool {
	// Note: Cannot use empty(c) because we are called