func (e *EventPort) PathIsWatched(path string) bool {
	e.mu.Lock()
	defer e.mu.Unlock()
	_, found := e.paths[path]
	return found
}

// FdIsWatched checks to see if fd is associated with this EventPort.
func (e *EventPort) FdIsWatched(fd uintptr) bool {
	e.mu.Lock()
	defer e.mu.Unlock()
	_, found := e.fds[fd]
	return found
}