Topic: [ANN] Askcoin (ASIC-resistant) is a decentralized Q&A and prediction platform. - page 2. (Read 1478 times)

bool Blockchain::proc_topic_expired(uint64 cur_block_id)
{
    if(cur_block_id < (TOPIC_LIFE_TIME + 2))
    {
        return true;
    }
    
    if(cur_block_id > (2 * TOPIC_LIFE_TIME + 1))
    {
        m_rollback_topics.erase(cur_block_id - (2 * TOPIC_LIFE_TIME + 1));
    }
    
    m_rollback_topics.erase(cur_block_id - (TOPIC_LIFE_TIME + 1));
    auto &topic_list = m_rollback_topics[cur_block_id - (TOPIC_LIFE_TIME + 1)];
    
    while(!m_topic_list.empty())
    {
        std::shared_ptr topic = m_topic_list.front();
        uint64 topic_block_id = topic->m_block->id();
        
        if(topic_block_id + TOPIC_LIFE_TIME < cur_block_id)
        {
            m_topics.erase(topic->key());
            topic_list.push_front(topic);
            std::shared_ptr owner = topic->get_owner();
            
            if(!owner)
            {
                return false;
            }

            if(owner->m_topic_list.empty())
            {
                return false;
            }

            std::shared_ptr topic_in_owner = owner->m_topic_list.front();

            if(topic != topic_in_owner)
            {
                return false;
            }

            uint64 balance = topic->get_balance();
            
            if(balance > 0)
            {
                m_reserve_fund_account->add_balance(balance);
            }
            
            owner->m_topic_list.pop_front();
            m_topic_list.pop_front();

            for(auto &p : topic->m_members)
            {
                p.second->leave_topic(topic);
            }
        }
        else
        {
            break;
        }
    }
    
    return true;
}