void Philosopher::AcquireForks() {
  if (seat_ == 0) {
    left_fork_.lock();
    right_fork_.lock();
  } else {
    right_fork_.lock();
    left_fork_.lock();
  }
}

void Philosopher::Eat() {
  table_.AccessPlate(seat_);
  table_.AccessPlate(table_.ToRight(seat_));
  ++eat_count_;
}

// Releases left_fork_ and right_fork_
void Philosopher::ReleaseForks() {
  left_fork_.unlock();
  right_fork_.unlock();
}