Method join

thread/thread-pool.cpp:130–139

        return ret;
    }
    void ThreadPoolBase::join(TPControl* pCtrl)
    {
        if (m_capacity == 0 || __should_bypass_threadpool()) {
            photon::thread_join((photon::join_handle*)pCtrl->th);
            return;
        }
        auto should_put = do_thread_join(pCtrl);
        if (should_put)
            pCtrl->pool->put(pCtrl);
    }
    int ThreadPoolBase::ctor(ThreadPoolBase* pool, TPControl** out)
    {
        auto pCtrl = (TPControl*)CURRENT;