Method add_event

src/msg/async/EventPoll.cc:120–135

}

int PollDriver::add_event(int fd, int cur_mask, int add_mask) {
  ldout(cct, 10) << __func__ << " add event to fd=" << fd << " mask="
		 << add_mask << dendl;
  int op, events = 0;
  op = cur_mask == EVENT_NONE ? POLL_ADD: POLL_MOD;

  add_mask |= cur_mask; /* Merge old events */
  if (add_mask & EVENT_READABLE) {
    events |= POLLIN;
  }
  if (add_mask & EVENT_WRITABLE) {
    events |= POLLOUT;
  }
  int ret = poll_ctl(fd, op, events);
  return ret;
}

int PollDriver::del_event(int fd, int cur_mask, int delmask) {
  ldout(cct, 10) << __func__ << " del event fd=" << fd << " cur mask="